From patchwork Mon Feb 13 10:17:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138157 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F250CC636D4 for ; Mon, 13 Feb 2023 10:18:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230266AbjBMKSO (ORCPT ); Mon, 13 Feb 2023 05:18:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53044 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230217AbjBMKSH (ORCPT ); Mon, 13 Feb 2023 05:18:07 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 72924E064 for ; Mon, 13 Feb 2023 02:18:06 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CC320106F; Mon, 13 Feb 2023 02:18:48 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 584703F703; Mon, 13 Feb 2023 02:18:05 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 01/30] lib: Move acpi header and implementation to lib Date: Mon, 13 Feb 2023 10:17:30 +0000 Message-Id: <20230213101759.2577077-2-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Move acpi.h to lib to make it available for other architectures. Signed-off-by: Nikos Nikoleris --- lib/{x86 => }/acpi.c | 0 lib/{x86 => }/acpi.h | 4 ++-- lib/x86/asm/setup.h | 2 +- x86/Makefile.common | 2 +- x86/s3.c | 2 +- x86/vmexit.c | 2 +- 6 files changed, 6 insertions(+), 6 deletions(-) rename lib/{x86 => }/acpi.c (100%) rename lib/{x86 => }/acpi.h (99%) diff --git a/lib/x86/acpi.c b/lib/acpi.c similarity index 100% rename from lib/x86/acpi.c rename to lib/acpi.c diff --git a/lib/x86/acpi.h b/lib/acpi.h similarity index 99% rename from lib/x86/acpi.h rename to lib/acpi.h index 67ba3899..1e89840c 100644 --- a/lib/x86/acpi.h +++ b/lib/acpi.h @@ -1,5 +1,5 @@ -#ifndef _X86_ACPI_H_ -#define _X86_ACPI_H_ +#ifndef _ACPI_H_ +#define _ACPI_H_ #include "libcflat.h" diff --git a/lib/x86/asm/setup.h b/lib/x86/asm/setup.h index 1f384274..458eac85 100644 --- a/lib/x86/asm/setup.h +++ b/lib/x86/asm/setup.h @@ -4,7 +4,7 @@ unsigned long setup_tss(u8 *stacktop); #ifdef CONFIG_EFI -#include "x86/acpi.h" +#include "acpi.h" #include "x86/apic.h" #include "x86/processor.h" #include "x86/smp.h" diff --git a/x86/Makefile.common b/x86/Makefile.common index 365e199f..9f2bc93f 100644 --- a/x86/Makefile.common +++ b/x86/Makefile.common @@ -2,6 +2,7 @@ all: directories test_cases +cflatobjs += lib/acpi.o cflatobjs += lib/pci.o cflatobjs += lib/pci-edu.o cflatobjs += lib/alloc.o @@ -18,7 +19,6 @@ cflatobjs += lib/x86/apic.o cflatobjs += lib/x86/atomic.o cflatobjs += lib/x86/desc.o cflatobjs += lib/x86/isr.o -cflatobjs += lib/x86/acpi.o cflatobjs += lib/x86/stack.o cflatobjs += lib/x86/fault_test.o cflatobjs += lib/x86/delay.o diff --git a/x86/s3.c b/x86/s3.c index 6e41d0c4..378d37ae 100644 --- a/x86/s3.c +++ b/x86/s3.c @@ -1,5 +1,5 @@ #include "libcflat.h" -#include "x86/acpi.h" +#include "acpi.h" #include "asm/io.h" static u32* find_resume_vector_addr(void) diff --git a/x86/vmexit.c b/x86/vmexit.c index b1eed8d1..865ccf6b 100644 --- a/x86/vmexit.c +++ b/x86/vmexit.c @@ -1,9 +1,9 @@ #include "libcflat.h" +#include "acpi.h" #include "smp.h" #include "pci.h" #include "x86/vm.h" #include "x86/desc.h" -#include "x86/acpi.h" #include "x86/apic.h" #include "x86/isr.h" From patchwork Mon Feb 13 10:17:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138158 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AD19EC636CC for ; Mon, 13 Feb 2023 10:18:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230217AbjBMKSQ (ORCPT ); Mon, 13 Feb 2023 05:18:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53022 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230223AbjBMKSI (ORCPT ); Mon, 13 Feb 2023 05:18:08 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 92D8DE387 for ; Mon, 13 Feb 2023 02:18:07 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id E24A8176A; Mon, 13 Feb 2023 02:18:49 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 6E70E3F703; Mon, 13 Feb 2023 02:18:06 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 02/30] x86: Move x86_64-specific EFI CFLAGS to x86_64 Makefile Date: Mon, 13 Feb 2023 10:17:31 +0000 Message-Id: <20230213101759.2577077-3-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Compiler flag -macculate-outgoing-args is only needed by the x86_64 ABI. Move it to the relevant Makefile. Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- Makefile | 4 ---- x86/Makefile.x86_64 | 4 ++++ 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/Makefile b/Makefile index 6ed5deac..307bc291 100644 --- a/Makefile +++ b/Makefile @@ -40,14 +40,10 @@ OBJDIRS += $(LIBFDT_objdir) # EFI App ifeq ($(CONFIG_EFI),y) -EFI_ARCH = x86_64 EFI_CFLAGS := -DCONFIG_EFI # The following CFLAGS and LDFLAGS come from: # - GNU-EFI/Makefile.defaults # - GNU-EFI/apps/Makefile -# Function calls must include the number of arguments passed to the functions -# More details: https://wiki.osdev.org/GNU-EFI -EFI_CFLAGS += -maccumulate-outgoing-args # GCC defines wchar to be 32 bits, but EFI expects 16 bits EFI_CFLAGS += -fshort-wchar # EFI applications use PIC as they are loaded to dynamic addresses, not a fixed diff --git a/x86/Makefile.x86_64 b/x86/Makefile.x86_64 index f483dead..2771a6fa 100644 --- a/x86/Makefile.x86_64 +++ b/x86/Makefile.x86_64 @@ -2,6 +2,10 @@ cstart.o = $(TEST_DIR)/cstart64.o bits = 64 ldarch = elf64-x86-64 ifeq ($(CONFIG_EFI),y) +# Function calls must include the number of arguments passed to the functions +# More details: https://wiki.osdev.org/GNU-EFI +CFLAGS += -maccumulate-outgoing-args + exe = efi bin = so FORMAT = efi-app-x86_64 From patchwork Mon Feb 13 10:17:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138159 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9FED1C636D4 for ; Mon, 13 Feb 2023 10:18:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230290AbjBMKSR (ORCPT ); Mon, 13 Feb 2023 05:18:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53030 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230102AbjBMKSJ (ORCPT ); Mon, 13 Feb 2023 05:18:09 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 99136EB6D for ; Mon, 13 Feb 2023 02:18:08 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 04392176C; Mon, 13 Feb 2023 02:18:51 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 8494E3F703; Mon, 13 Feb 2023 02:18:07 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: Alexandru Elisei , pbonzini@redhat.com, ricarkol@google.com Subject: [PATCH v4 03/30] arm/Makefile.common: Compile lib/acpi.c if CONFIG_EFI=y Date: Mon, 13 Feb 2023 10:17:32 +0000 Message-Id: <20230213101759.2577077-4-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Alexandru Elisei For arm/arm64, ACPI is available only when UEFI is present. Compile acpi.c if CONFIG_EFI is set to 'y'. For now, only x86 can configure the tests with --enable-efi, but that will soon change. Signed-off-by: Nikos Nikoleris --- arm/Makefile.common | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arm/Makefile.common b/arm/Makefile.common index 1bbec64f..3a726c20 100644 --- a/arm/Makefile.common +++ b/arm/Makefile.common @@ -54,6 +54,10 @@ cflatobjs += lib/arm/smp.o cflatobjs += lib/arm/delay.o cflatobjs += lib/arm/gic.o lib/arm/gic-v2.o lib/arm/gic-v3.o +ifeq ($(CONFIG_EFI),y) +cflatobjs += lib/acpi.o +endif + OBJDIRS += lib/arm libeabi = lib/arm/libeabi.a From patchwork Mon Feb 13 10:17:33 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138161 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 18201C636CC for ; Mon, 13 Feb 2023 10:18:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230301AbjBMKSU (ORCPT ); Mon, 13 Feb 2023 05:18:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53142 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230244AbjBMKSL (ORCPT ); Mon, 13 Feb 2023 05:18:11 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 16BFA8A69 for ; Mon, 13 Feb 2023 02:18:10 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 354CD19F0; Mon, 13 Feb 2023 02:18:52 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 9B1C23F703; Mon, 13 Feb 2023 02:18:08 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 04/30] lib: Apply Lindent to acpi.{c,h} Date: Mon, 13 Feb 2023 10:17:33 +0000 Message-Id: <20230213101759.2577077-5-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org The change was done by modifying Linux's scripts/Lindent to use 100 columns instead of 80. Signed-off-by: Nikos Nikoleris --- lib/acpi.c | 70 ++++++++++++------------ lib/acpi.h | 157 ++++++++++++++++++++++++++--------------------------- 2 files changed, 111 insertions(+), 116 deletions(-) diff --git a/lib/acpi.c b/lib/acpi.c index de275caf..836156a1 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -36,47 +36,45 @@ static struct rsdp_descriptor *get_rsdp(void) } #endif /* CONFIG_EFI */ -void* find_acpi_table_addr(u32 sig) +void *find_acpi_table_addr(u32 sig) { - struct rsdp_descriptor *rsdp; - struct rsdt_descriptor_rev1 *rsdt; - void *end; - int i; + struct rsdp_descriptor *rsdp; + struct rsdt_descriptor_rev1 *rsdt; + void *end; + int i; - /* FACS is special... */ - if (sig == FACS_SIGNATURE) { - struct fadt_descriptor_rev1 *fadt; - fadt = find_acpi_table_addr(FACP_SIGNATURE); - if (!fadt) { - return NULL; - } - return (void*)(ulong)fadt->firmware_ctrl; - } + /* FACS is special... */ + if (sig == FACS_SIGNATURE) { + struct fadt_descriptor_rev1 *fadt; + fadt = find_acpi_table_addr(FACP_SIGNATURE); + if (!fadt) + return NULL; - rsdp = get_rsdp(); - if (rsdp == NULL) { - printf("Can't find RSDP\n"); - return 0; - } + return (void *)(ulong) fadt->firmware_ctrl; + } - if (sig == RSDP_SIGNATURE) { - return rsdp; - } + rsdp = get_rsdp(); + if (rsdp == NULL) { + printf("Can't find RSDP\n"); + return NULL; + } - rsdt = (void*)(ulong)rsdp->rsdt_physical_address; - if (!rsdt || rsdt->signature != RSDT_SIGNATURE) - return 0; + if (sig == RSDP_SIGNATURE) + return rsdp; - if (sig == RSDT_SIGNATURE) { - return rsdt; - } + rsdt = (void *)(ulong) rsdp->rsdt_physical_address; + if (!rsdt || rsdt->signature != RSDT_SIGNATURE) + return NULL; + + if (sig == RSDT_SIGNATURE) + return rsdt; - end = (void*)rsdt + rsdt->length; - for (i=0; (void*)&rsdt->table_offset_entry[i] < end; i++) { - struct acpi_table *t = (void*)(ulong)rsdt->table_offset_entry[i]; - if (t && t->signature == sig) { - return t; - } - } - return NULL; + end = (void *)rsdt + rsdt->length; + for (i = 0; (void *)&rsdt->table_offset_entry[i] < end; i++) { + struct acpi_table *t = (void *)(ulong) rsdt->table_offset_entry[i]; + if (t && t->signature == sig) { + return t; + } + } + return NULL; } diff --git a/lib/acpi.h b/lib/acpi.h index 1e89840c..b67bbe19 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -3,7 +3,7 @@ #include "libcflat.h" -#define ACPI_SIGNATURE(c1, c2, c3, c4) \ +#define ACPI_SIGNATURE(c1, c2, c3, c4) \ ((c1) | ((c2) << 8) | ((c3) << 16) | ((c4) << 24)) #define RSDP_SIGNATURE ACPI_SIGNATURE('R','S','D','P') @@ -11,102 +11,99 @@ #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') - -#define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ - ((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ +#define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ + ((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ ((uint64_t)(ACPI_SIGNATURE(c5, c6, c7, c8)) << 32) #define RSDP_SIGNATURE_8BYTE (ACPI_SIGNATURE_8BYTE('R', 'S', 'D', ' ', 'P', 'T', 'R', ' ')) -struct rsdp_descriptor { /* Root System Descriptor Pointer */ - u64 signature; /* ACPI signature, contains "RSD PTR " */ - u8 checksum; /* To make sum of struct == 0 */ - u8 oem_id [6]; /* OEM identification */ - u8 revision; /* Must be 0 for 1.0, 2 for 2.0 */ - u32 rsdt_physical_address; /* 32-bit physical address of RSDT */ - u32 length; /* XSDT Length in bytes including hdr */ - u64 xsdt_physical_address; /* 64-bit physical address of XSDT */ - u8 extended_checksum; /* Checksum of entire table */ - u8 reserved [3]; /* Reserved field must be 0 */ +struct rsdp_descriptor { /* Root System Descriptor Pointer */ + u64 signature; /* ACPI signature, contains "RSD PTR " */ + u8 checksum; /* To make sum of struct == 0 */ + u8 oem_id[6]; /* OEM identification */ + u8 revision; /* Must be 0 for 1.0, 2 for 2.0 */ + u32 rsdt_physical_address; /* 32-bit physical address of RSDT */ + u32 length; /* XSDT Length in bytes including hdr */ + u64 xsdt_physical_address; /* 64-bit physical address of XSDT */ + u8 extended_checksum; /* Checksum of entire table */ + u8 reserved[3]; /* Reserved field must be 0 */ }; -#define ACPI_TABLE_HEADER_DEF /* ACPI common table header */ \ - u32 signature; /* ACPI signature (4 ASCII characters) */ \ - u32 length; /* Length of table, in bytes, including header */ \ - u8 revision; /* ACPI Specification minor version # */ \ - u8 checksum; /* To make sum of entire table == 0 */ \ - u8 oem_id [6]; /* OEM identification */ \ - u8 oem_table_id [8]; /* OEM table identification */ \ - u32 oem_revision; /* OEM revision number */ \ - u8 asl_compiler_id [4]; /* ASL compiler vendor ID */ \ - u32 asl_compiler_revision; /* ASL compiler revision number */ +#define ACPI_TABLE_HEADER_DEF /* ACPI common table header */ \ + u32 signature; /* ACPI signature (4 ASCII characters) */ \ + u32 length; /* Length of table, in bytes, including header */ \ + u8 revision; /* ACPI Specification minor version # */ \ + u8 checksum; /* To make sum of entire table == 0 */ \ + u8 oem_id [6]; /* OEM identification */ \ + u8 oem_table_id [8]; /* OEM table identification */ \ + u32 oem_revision; /* OEM revision number */ \ + u8 asl_compiler_id [4]; /* ASL compiler vendor ID */ \ + u32 asl_compiler_revision; /* ASL compiler revision number */ struct acpi_table { - ACPI_TABLE_HEADER_DEF - char data[0]; + ACPI_TABLE_HEADER_DEF + char data[0]; }; struct rsdt_descriptor_rev1 { - ACPI_TABLE_HEADER_DEF - u32 table_offset_entry[0]; + ACPI_TABLE_HEADER_DEF + u32 table_offset_entry[1]; }; -struct fadt_descriptor_rev1 -{ - ACPI_TABLE_HEADER_DEF /* ACPI common table header */ - u32 firmware_ctrl; /* Physical address of FACS */ - u32 dsdt; /* Physical address of DSDT */ - u8 model; /* System Interrupt Model */ - u8 reserved1; /* Reserved */ - u16 sci_int; /* System vector of SCI interrupt */ - u32 smi_cmd; /* Port address of SMI command port */ - u8 acpi_enable; /* Value to write to smi_cmd to enable ACPI */ - u8 acpi_disable; /* Value to write to smi_cmd to disable ACPI */ - u8 S4bios_req; /* Value to write to SMI CMD to enter S4BIOS state */ - u8 reserved2; /* Reserved - must be zero */ - u32 pm1a_evt_blk; /* Port address of Power Mgt 1a acpi_event Reg Blk */ - u32 pm1b_evt_blk; /* Port address of Power Mgt 1b acpi_event Reg Blk */ - u32 pm1a_cnt_blk; /* Port address of Power Mgt 1a Control Reg Blk */ - u32 pm1b_cnt_blk; /* Port address of Power Mgt 1b Control Reg Blk */ - u32 pm2_cnt_blk; /* Port address of Power Mgt 2 Control Reg Blk */ - u32 pm_tmr_blk; /* Port address of Power Mgt Timer Ctrl Reg Blk */ - u32 gpe0_blk; /* Port addr of General Purpose acpi_event 0 Reg Blk */ - u32 gpe1_blk; /* Port addr of General Purpose acpi_event 1 Reg Blk */ - u8 pm1_evt_len; /* Byte length of ports at pm1_x_evt_blk */ - u8 pm1_cnt_len; /* Byte length of ports at pm1_x_cnt_blk */ - u8 pm2_cnt_len; /* Byte Length of ports at pm2_cnt_blk */ - u8 pm_tmr_len; /* Byte Length of ports at pm_tm_blk */ - u8 gpe0_blk_len; /* Byte Length of ports at gpe0_blk */ - u8 gpe1_blk_len; /* Byte Length of ports at gpe1_blk */ - u8 gpe1_base; /* Offset in gpe model where gpe1 events start */ - u8 reserved3; /* Reserved */ - u16 plvl2_lat; /* Worst case HW latency to enter/exit C2 state */ - u16 plvl3_lat; /* Worst case HW latency to enter/exit C3 state */ - u16 flush_size; /* Size of area read to flush caches */ - u16 flush_stride; /* Stride used in flushing caches */ - u8 duty_offset; /* Bit location of duty cycle field in p_cnt reg */ - u8 duty_width; /* Bit width of duty cycle field in p_cnt reg */ - u8 day_alrm; /* Index to day-of-month alarm in RTC CMOS RAM */ - u8 mon_alrm; /* Index to month-of-year alarm in RTC CMOS RAM */ - u8 century; /* Index to century in RTC CMOS RAM */ - u8 reserved4; /* Reserved */ - u8 reserved4a; /* Reserved */ - u8 reserved4b; /* Reserved */ +struct fadt_descriptor_rev1 { + ACPI_TABLE_HEADER_DEF /* ACPI common table header */ + u32 firmware_ctrl; /* Physical address of FACS */ + u32 dsdt; /* Physical address of DSDT */ + u8 model; /* System Interrupt Model */ + u8 reserved1; /* Reserved */ + u16 sci_int; /* System vector of SCI interrupt */ + u32 smi_cmd; /* Port address of SMI command port */ + u8 acpi_enable; /* Value to write to smi_cmd to enable ACPI */ + u8 acpi_disable; /* Value to write to smi_cmd to disable ACPI */ + u8 S4bios_req; /* Value to write to SMI CMD to enter S4BIOS state */ + u8 reserved2; /* Reserved - must be zero */ + u32 pm1a_evt_blk; /* Port address of Power Mgt 1a acpi_event Reg Blk */ + u32 pm1b_evt_blk; /* Port address of Power Mgt 1b acpi_event Reg Blk */ + u32 pm1a_cnt_blk; /* Port address of Power Mgt 1a Control Reg Blk */ + u32 pm1b_cnt_blk; /* Port address of Power Mgt 1b Control Reg Blk */ + u32 pm2_cnt_blk; /* Port address of Power Mgt 2 Control Reg Blk */ + u32 pm_tmr_blk; /* Port address of Power Mgt Timer Ctrl Reg Blk */ + u32 gpe0_blk; /* Port addr of General Purpose acpi_event 0 Reg Blk */ + u32 gpe1_blk; /* Port addr of General Purpose acpi_event 1 Reg Blk */ + u8 pm1_evt_len; /* Byte length of ports at pm1_x_evt_blk */ + u8 pm1_cnt_len; /* Byte length of ports at pm1_x_cnt_blk */ + u8 pm2_cnt_len; /* Byte Length of ports at pm2_cnt_blk */ + u8 pm_tmr_len; /* Byte Length of ports at pm_tm_blk */ + u8 gpe0_blk_len; /* Byte Length of ports at gpe0_blk */ + u8 gpe1_blk_len; /* Byte Length of ports at gpe1_blk */ + u8 gpe1_base; /* Offset in gpe model where gpe1 events start */ + u8 reserved3; /* Reserved */ + u16 plvl2_lat; /* Worst case HW latency to enter/exit C2 state */ + u16 plvl3_lat; /* Worst case HW latency to enter/exit C3 state */ + u16 flush_size; /* Size of area read to flush caches */ + u16 flush_stride; /* Stride used in flushing caches */ + u8 duty_offset; /* Bit location of duty cycle field in p_cnt reg */ + u8 duty_width; /* Bit width of duty cycle field in p_cnt reg */ + u8 day_alrm; /* Index to day-of-month alarm in RTC CMOS RAM */ + u8 mon_alrm; /* Index to month-of-year alarm in RTC CMOS RAM */ + u8 century; /* Index to century in RTC CMOS RAM */ + u8 reserved4; /* Reserved */ + u8 reserved4a; /* Reserved */ + u8 reserved4b; /* Reserved */ }; -struct facs_descriptor_rev1 -{ - u32 signature; /* ACPI Signature */ - u32 length; /* Length of structure, in bytes */ - u32 hardware_signature; /* Hardware configuration signature */ - u32 firmware_waking_vector; /* ACPI OS waking vector */ - u32 global_lock; /* Global Lock */ - u32 S4bios_f : 1; /* Indicates if S4BIOS support is present */ - u32 reserved1 : 31; /* Must be 0 */ - u8 reserved3 [40]; /* Reserved - must be zero */ +struct facs_descriptor_rev1 { + u32 signature; /* ACPI Signature */ + u32 length; /* Length of structure, in bytes */ + u32 hardware_signature; /* Hardware configuration signature */ + u32 firmware_waking_vector; /* ACPI OS waking vector */ + u32 global_lock; /* Global Lock */ + u32 S4bios_f:1; /* Indicates if S4BIOS support is present */ + u32 reserved1:31; /* Must be 0 */ + u8 reserved3[40]; /* Reserved - must be zero */ }; void set_efi_rsdp(struct rsdp_descriptor *rsdp); -void* find_acpi_table_addr(u32 sig); +void *find_acpi_table_addr(u32 sig); #endif From patchwork Mon Feb 13 10:17:34 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138160 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F2E44C636D7 for ; Mon, 13 Feb 2023 10:18:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230339AbjBMKST (ORCPT ); Mon, 13 Feb 2023 05:18:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53144 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230051AbjBMKSL (ORCPT ); Mon, 13 Feb 2023 05:18:11 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id E0C75D50B for ; Mon, 13 Feb 2023 02:18:10 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 4B79B1A00; Mon, 13 Feb 2023 02:18:53 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id CBEB53F703; Mon, 13 Feb 2023 02:18:09 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 05/30] lib: Fix style for acpi.{c,h} Date: Mon, 13 Feb 2023 10:17:34 +0000 Message-Id: <20230213101759.2577077-6-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Manually fix style issues to make the files consistent with the kernel coding style. Zero-length array members have been replaced with flexible array members (for details about the motivation, consult Documentation/process/deprecated.rst in the Linux tree, the section about zero-length and one-element arrays). Signed-off-by: Nikos Nikoleris [ Alex E: changes other than indentation ] --- lib/acpi.c | 16 ++++++++-------- lib/acpi.h | 12 ++++++------ 2 files changed, 14 insertions(+), 14 deletions(-) diff --git a/lib/acpi.c b/lib/acpi.c index 836156a1..3f87711a 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -11,9 +11,9 @@ void set_efi_rsdp(struct rsdp_descriptor *rsdp) static struct rsdp_descriptor *get_rsdp(void) { - if (efi_rsdp == NULL) { + if (efi_rsdp == NULL) printf("Can't find RSDP from UEFI, maybe set_efi_rsdp() was not called\n"); - } + return efi_rsdp; } #else @@ -28,9 +28,8 @@ static struct rsdp_descriptor *get_rsdp(void) break; } - if (addr == 0x100000) { + if (addr == 0x100000) return NULL; - } return rsdp; } @@ -38,18 +37,18 @@ static struct rsdp_descriptor *get_rsdp(void) void *find_acpi_table_addr(u32 sig) { - struct rsdp_descriptor *rsdp; struct rsdt_descriptor_rev1 *rsdt; + struct rsdp_descriptor *rsdp; void *end; int i; /* FACS is special... */ if (sig == FACS_SIGNATURE) { struct fadt_descriptor_rev1 *fadt; + fadt = find_acpi_table_addr(FACP_SIGNATURE); if (!fadt) return NULL; - return (void *)(ulong) fadt->firmware_ctrl; } @@ -72,9 +71,10 @@ void *find_acpi_table_addr(u32 sig) end = (void *)rsdt + rsdt->length; for (i = 0; (void *)&rsdt->table_offset_entry[i] < end; i++) { struct acpi_table *t = (void *)(ulong) rsdt->table_offset_entry[i]; - if (t && t->signature == sig) { + + if (t && t->signature == sig) return t; - } } + return NULL; } diff --git a/lib/acpi.h b/lib/acpi.h index b67bbe19..fad28792 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -3,7 +3,7 @@ #include "libcflat.h" -#define ACPI_SIGNATURE(c1, c2, c3, c4) \ +#define ACPI_SIGNATURE(c1, c2, c3, c4) \ ((c1) | ((c2) << 8) | ((c3) << 16) | ((c4) << 24)) #define RSDP_SIGNATURE ACPI_SIGNATURE('R','S','D','P') @@ -11,9 +11,9 @@ #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') -#define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ - ((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ - ((uint64_t)(ACPI_SIGNATURE(c5, c6, c7, c8)) << 32) +#define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ + (((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ + ((uint64_t)(ACPI_SIGNATURE(c5, c6, c7, c8)) << 32)) #define RSDP_SIGNATURE_8BYTE (ACPI_SIGNATURE_8BYTE('R', 'S', 'D', ' ', 'P', 'T', 'R', ' ')) @@ -42,12 +42,12 @@ struct rsdp_descriptor { /* Root System Descriptor Pointer */ struct acpi_table { ACPI_TABLE_HEADER_DEF - char data[0]; + char data[]; }; struct rsdt_descriptor_rev1 { ACPI_TABLE_HEADER_DEF - u32 table_offset_entry[1]; + u32 table_offset_entry[]; }; struct fadt_descriptor_rev1 { From patchwork Mon Feb 13 10:17:35 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138162 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id AA6F1C636D7 for ; Mon, 13 Feb 2023 10:18:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230309AbjBMKSW (ORCPT ); Mon, 13 Feb 2023 05:18:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53190 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230130AbjBMKSN (ORCPT ); Mon, 13 Feb 2023 05:18:13 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 019B3DBF3 for ; Mon, 13 Feb 2023 02:18:12 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 61A551A25; Mon, 13 Feb 2023 02:18:54 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E22BA3F703; Mon, 13 Feb 2023 02:18:10 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: Alexandru Elisei , pbonzini@redhat.com, ricarkol@google.com Subject: [PATCH v4 06/30] lib/acpi: Convert table names to Linux style Date: Mon, 13 Feb 2023 10:17:35 +0000 Message-Id: <20230213101759.2577077-7-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Alexandru Elisei kvm-unit-tests is about to import several table struct definitions from Linux, convert the names of the existing tables to follow the Linux style. This is purely a cosmetic change and no functional change is intended. Signed-off-by: Nikos Nikoleris --- lib/acpi.c | 16 ++++++++-------- lib/acpi.h | 10 +++++----- lib/x86/setup.c | 2 +- x86/s3.c | 4 ++-- x86/vmexit.c | 2 +- 5 files changed, 17 insertions(+), 17 deletions(-) diff --git a/lib/acpi.c b/lib/acpi.c index 3f87711a..166ffd14 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -2,14 +2,14 @@ #include "acpi.h" #ifdef CONFIG_EFI -struct rsdp_descriptor *efi_rsdp = NULL; +struct acpi_table_rsdp *efi_rsdp = NULL; -void set_efi_rsdp(struct rsdp_descriptor *rsdp) +void set_efi_rsdp(struct acpi_table_rsdp *rsdp) { efi_rsdp = rsdp; } -static struct rsdp_descriptor *get_rsdp(void) +static struct acpi_table_rsdp *get_rsdp(void) { if (efi_rsdp == NULL) printf("Can't find RSDP from UEFI, maybe set_efi_rsdp() was not called\n"); @@ -17,9 +17,9 @@ static struct rsdp_descriptor *get_rsdp(void) return efi_rsdp; } #else -static struct rsdp_descriptor *get_rsdp(void) +static struct acpi_table_rsdp *get_rsdp(void) { - struct rsdp_descriptor *rsdp; + struct acpi_table_rsdp *rsdp; unsigned long addr; for (addr = 0xe0000; addr < 0x100000; addr += 16) { @@ -37,14 +37,14 @@ static struct rsdp_descriptor *get_rsdp(void) void *find_acpi_table_addr(u32 sig) { - struct rsdt_descriptor_rev1 *rsdt; - struct rsdp_descriptor *rsdp; + struct acpi_table_rsdt_rev1 *rsdt; + struct acpi_table_rsdp *rsdp; void *end; int i; /* FACS is special... */ if (sig == FACS_SIGNATURE) { - struct fadt_descriptor_rev1 *fadt; + struct acpi_table_fadt_rev1 *fadt; fadt = find_acpi_table_addr(FACP_SIGNATURE); if (!fadt) diff --git a/lib/acpi.h b/lib/acpi.h index fad28792..229a6391 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -17,7 +17,7 @@ #define RSDP_SIGNATURE_8BYTE (ACPI_SIGNATURE_8BYTE('R', 'S', 'D', ' ', 'P', 'T', 'R', ' ')) -struct rsdp_descriptor { /* Root System Descriptor Pointer */ +struct acpi_table_rsdp { /* Root System Descriptor Pointer */ u64 signature; /* ACPI signature, contains "RSD PTR " */ u8 checksum; /* To make sum of struct == 0 */ u8 oem_id[6]; /* OEM identification */ @@ -45,12 +45,12 @@ struct acpi_table { char data[]; }; -struct rsdt_descriptor_rev1 { +struct acpi_table_rsdt_rev1 { ACPI_TABLE_HEADER_DEF u32 table_offset_entry[]; }; -struct fadt_descriptor_rev1 { +struct acpi_table_fadt_rev1 { ACPI_TABLE_HEADER_DEF /* ACPI common table header */ u32 firmware_ctrl; /* Physical address of FACS */ u32 dsdt; /* Physical address of DSDT */ @@ -92,7 +92,7 @@ struct fadt_descriptor_rev1 { u8 reserved4b; /* Reserved */ }; -struct facs_descriptor_rev1 { +struct acpi_table_facs_rev1 { u32 signature; /* ACPI Signature */ u32 length; /* Length of structure, in bytes */ u32 hardware_signature; /* Hardware configuration signature */ @@ -103,7 +103,7 @@ struct facs_descriptor_rev1 { u8 reserved3[40]; /* Reserved - must be zero */ }; -void set_efi_rsdp(struct rsdp_descriptor *rsdp); +void set_efi_rsdp(struct acpi_table_rsdp *rsdp); void *find_acpi_table_addr(u32 sig); #endif diff --git a/lib/x86/setup.c b/lib/x86/setup.c index dd150300..d509a248 100644 --- a/lib/x86/setup.c +++ b/lib/x86/setup.c @@ -245,7 +245,7 @@ static efi_status_t setup_memory_allocator(efi_bootinfo_t *efi_bootinfo) static efi_status_t setup_rsdp(efi_bootinfo_t *efi_bootinfo) { efi_status_t status; - struct rsdp_descriptor *rsdp; + struct acpi_table_rsdp *rsdp; /* * RSDP resides in an EFI_ACPI_RECLAIM_MEMORY region, which is not used diff --git a/x86/s3.c b/x86/s3.c index 378d37ae..96db728c 100644 --- a/x86/s3.c +++ b/x86/s3.c @@ -4,7 +4,7 @@ static u32* find_resume_vector_addr(void) { - struct facs_descriptor_rev1 *facs = find_acpi_table_addr(FACS_SIGNATURE); + struct acpi_table_facs_rev1 *facs = find_acpi_table_addr(FACS_SIGNATURE); if (!facs) return 0; printf("FACS is at %p\n", facs); @@ -39,7 +39,7 @@ extern char resume_start, resume_end; int main(int argc, char **argv) { - struct fadt_descriptor_rev1 *fadt = find_acpi_table_addr(FACP_SIGNATURE); + struct acpi_table_fadt_rev1 *fadt = find_acpi_table_addr(FACP_SIGNATURE); volatile u32 *resume_vector_ptr = find_resume_vector_addr(); char *addr, *resume_vec = (void*)0x1000; diff --git a/x86/vmexit.c b/x86/vmexit.c index 865ccf6b..6987aca0 100644 --- a/x86/vmexit.c +++ b/x86/vmexit.c @@ -206,7 +206,7 @@ int pm_tmr_blk; static void inl_pmtimer(void) { if (!pm_tmr_blk) { - struct fadt_descriptor_rev1 *fadt; + struct acpi_table_fadt_rev1 *fadt; fadt = find_acpi_table_addr(FACP_SIGNATURE); pm_tmr_blk = fadt->pm_tmr_blk; From patchwork Mon Feb 13 10:17:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138163 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 634A0C636D4 for ; Mon, 13 Feb 2023 10:18:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230268AbjBMKSX (ORCPT ); Mon, 13 Feb 2023 05:18:23 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53144 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230294AbjBMKSS (ORCPT ); Mon, 13 Feb 2023 05:18:18 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 1FAC7126D8 for ; Mon, 13 Feb 2023 02:18:13 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7A7B11CE0; Mon, 13 Feb 2023 02:18:55 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 041833F703; Mon, 13 Feb 2023 02:18:11 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 07/30] x86: Avoid references to fields of ACPI tables Date: Mon, 13 Feb 2023 10:17:36 +0000 Message-Id: <20230213101759.2577077-8-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org ACPI table definitions in have to be packed. However, once we do that, direct references to members of the packed struct might result in unaligned pointers and gcc complains about them. This change modifies the code to avoid such references in preparation for making the APCI table definitions packed. Signed-off-by: Nikos Nikoleris --- x86/s3.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) diff --git a/x86/s3.c b/x86/s3.c index 96db728c..910c57fb 100644 --- a/x86/s3.c +++ b/x86/s3.c @@ -2,15 +2,6 @@ #include "acpi.h" #include "asm/io.h" -static u32* find_resume_vector_addr(void) -{ - struct acpi_table_facs_rev1 *facs = find_acpi_table_addr(FACS_SIGNATURE); - if (!facs) - return 0; - printf("FACS is at %p\n", facs); - return &facs->firmware_waking_vector; -} - #define RTC_SECONDS_ALARM 1 #define RTC_MINUTES_ALARM 3 #define RTC_HOURS_ALARM 5 @@ -40,12 +31,14 @@ extern char resume_start, resume_end; int main(int argc, char **argv) { struct acpi_table_fadt_rev1 *fadt = find_acpi_table_addr(FACP_SIGNATURE); - volatile u32 *resume_vector_ptr = find_resume_vector_addr(); + struct acpi_table_facs_rev1 *facs = find_acpi_table_addr(FACS_SIGNATURE); char *addr, *resume_vec = (void*)0x1000; - *resume_vector_ptr = (u32)(ulong)resume_vec; + assert(facs); + facs->firmware_waking_vector = (u32)(ulong)resume_vec; - printf("resume vector addr is %p\n", resume_vector_ptr); + printf("FACS is at %p\n", facs); + printf("resume vector addr is %p\n", &facs->firmware_waking_vector); for (addr = &resume_start; addr < &resume_end; addr++) *resume_vec++ = *addr; printf("copy resume code from %p\n", &resume_start); From patchwork Mon Feb 13 10:17:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138164 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 33D14C64EC4 for ; Mon, 13 Feb 2023 10:18:25 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230248AbjBMKSY (ORCPT ); Mon, 13 Feb 2023 05:18:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53338 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230295AbjBMKSS (ORCPT ); Mon, 13 Feb 2023 05:18:18 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 17FD0E387 for ; Mon, 13 Feb 2023 02:18:14 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 9080C1CE2; Mon, 13 Feb 2023 02:18:56 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1CBF43F703; Mon, 13 Feb 2023 02:18:13 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 08/30] lib/acpi: Ensure all struct definition for ACPI tables are packed Date: Mon, 13 Feb 2023 10:17:37 +0000 Message-Id: <20230213101759.2577077-9-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org All ACPI table definitions are provided with precise definitions of field sizes and offsets, make sure that no compiler optimization can interfere with the memory layout of the corresponding structs. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones --- lib/acpi.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/lib/acpi.h b/lib/acpi.h index 229a6391..67d12942 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -3,6 +3,12 @@ #include "libcflat.h" +/* + * All tables and structures must be byte-packed to match the ACPI + * specification, since the tables are provided by the system firmware. + */ +#pragma pack(1) + #define ACPI_SIGNATURE(c1, c2, c3, c4) \ ((c1) | ((c2) << 8) | ((c3) << 16) | ((c4) << 24)) @@ -103,6 +109,8 @@ struct acpi_table_facs_rev1 { u8 reserved3[40]; /* Reserved - must be zero */ }; +#pragma pack(0) + void set_efi_rsdp(struct acpi_table_rsdp *rsdp); void *find_acpi_table_addr(u32 sig); From patchwork Mon Feb 13 10:17:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138165 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 423F3C636CC for ; Mon, 13 Feb 2023 10:18:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230323AbjBMKSZ (ORCPT ); Mon, 13 Feb 2023 05:18:25 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53362 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230305AbjBMKSS (ORCPT ); Mon, 13 Feb 2023 05:18:18 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 47C929ED7 for ; Mon, 13 Feb 2023 02:18:15 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A79ED1D13; Mon, 13 Feb 2023 02:18:57 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 3329E3F703; Mon, 13 Feb 2023 02:18:14 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 09/30] lib/acpi: Add support for the XSDT table Date: Mon, 13 Feb 2023 10:17:38 +0000 Message-Id: <20230213101759.2577077-10-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org XSDT provides pointers to other ACPI tables much like RSDT. However, contrary to RSDT that provides 32-bit addresses, XSDT provides 64-bit pointers. ACPI requires that if XSDT is valid then it takes precedence over RSDT. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones [ Alex E: Use flexible array member for XSDT struct ] Signed-off-by: Alexandru Elisei --- lib/acpi.c | 40 ++++++++++++++++++++++++++++++++-------- lib/acpi.h | 6 ++++++ 2 files changed, 38 insertions(+), 8 deletions(-) diff --git a/lib/acpi.c b/lib/acpi.c index 166ffd14..d35f09a6 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -37,7 +37,8 @@ static struct acpi_table_rsdp *get_rsdp(void) void *find_acpi_table_addr(u32 sig) { - struct acpi_table_rsdt_rev1 *rsdt; + struct acpi_table_rsdt_rev1 *rsdt = NULL; + struct acpi_table_xsdt *xsdt = NULL; struct acpi_table_rsdp *rsdp; void *end; int i; @@ -62,18 +63,41 @@ void *find_acpi_table_addr(u32 sig) return rsdp; rsdt = (void *)(ulong) rsdp->rsdt_physical_address; - if (!rsdt || rsdt->signature != RSDT_SIGNATURE) - return NULL; + if (rsdt && rsdt->signature != RSDT_SIGNATURE) + rsdt = NULL; if (sig == RSDT_SIGNATURE) return rsdt; - end = (void *)rsdt + rsdt->length; - for (i = 0; (void *)&rsdt->table_offset_entry[i] < end; i++) { - struct acpi_table *t = (void *)(ulong) rsdt->table_offset_entry[i]; + if (rsdp->revision >= 2) { + xsdt = (void *)rsdp->xsdt_physical_address; + if (xsdt && xsdt->signature != XSDT_SIGNATURE) + xsdt = NULL; + } - if (t && t->signature == sig) - return t; + if (sig == XSDT_SIGNATURE) + return xsdt; + + /* + * When the system implements APCI 2.0 and above and XSDT is valid we + * have use XSDT to find other ACPI tables, otherwise, we use RSDT. + */ + if (xsdt) { + end = (void *)xsdt + xsdt->length; + for (i = 0; (void *)&xsdt->table_offset_entry[i] < end; i++) { + struct acpi_table *t = (void *)(ulong) xsdt->table_offset_entry[i]; + + if (t && t->signature == sig) + return t; + } + } else if (rsdt) { + end = (void *)rsdt + rsdt->length; + for (i = 0; (void *)&rsdt->table_offset_entry[i] < end; i++) { + struct acpi_table *t = (void *)(ulong) rsdt->table_offset_entry[i]; + + if (t && t->signature == sig) + return t; + } } return NULL; diff --git a/lib/acpi.h b/lib/acpi.h index 67d12942..621ad08a 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -14,6 +14,7 @@ #define RSDP_SIGNATURE ACPI_SIGNATURE('R','S','D','P') #define RSDT_SIGNATURE ACPI_SIGNATURE('R','S','D','T') +#define XSDT_SIGNATURE ACPI_SIGNATURE('X','S','D','T') #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') @@ -56,6 +57,11 @@ struct acpi_table_rsdt_rev1 { u32 table_offset_entry[]; }; +struct acpi_table_xsdt { + ACPI_TABLE_HEADER_DEF + u64 table_offset_entry[]; +}; + struct acpi_table_fadt_rev1 { ACPI_TABLE_HEADER_DEF /* ACPI common table header */ u32 firmware_ctrl; /* Physical address of FACS */ From patchwork Mon Feb 13 10:17:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138167 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DCD4DC636CC for ; Mon, 13 Feb 2023 10:18:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230325AbjBMKS1 (ORCPT ); Mon, 13 Feb 2023 05:18:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53212 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230334AbjBMKSS (ORCPT ); Mon, 13 Feb 2023 05:18:18 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 7DC841204D for ; Mon, 13 Feb 2023 02:18:16 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D81C81D14; Mon, 13 Feb 2023 02:18:58 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 49D6F3F703; Mon, 13 Feb 2023 02:18:15 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, Andrew Jones Subject: [PATCH v4 10/30] lib/acpi: Extend the definition of the FADT table Date: Mon, 13 Feb 2023 10:17:39 +0000 Message-Id: <20230213101759.2577077-11-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change add more fields in the APCI table FADT to allow for the discovery of the PSCI conduit in arm64 systems. The definition for FADT is similar to the one in include/acpi/actbl.h in Linux. Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller Reviewed-by: Andrew Jones --- lib/acpi.c | 2 +- lib/acpi.h | 33 +++++++++++++++++++++++++++++---- x86/s3.c | 2 +- x86/vmexit.c | 2 +- 4 files changed, 32 insertions(+), 7 deletions(-) diff --git a/lib/acpi.c b/lib/acpi.c index d35f09a6..a197f3dd 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -45,7 +45,7 @@ void *find_acpi_table_addr(u32 sig) /* FACS is special... */ if (sig == FACS_SIGNATURE) { - struct acpi_table_fadt_rev1 *fadt; + struct acpi_table_fadt *fadt; fadt = find_acpi_table_addr(FACP_SIGNATURE); if (!fadt) diff --git a/lib/acpi.h b/lib/acpi.h index 621ad08a..38b6d5c9 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -62,7 +62,15 @@ struct acpi_table_xsdt { u64 table_offset_entry[]; }; -struct acpi_table_fadt_rev1 { +struct acpi_generic_address { + u8 space_id; /* Address space where struct or register exists */ + u8 bit_width; /* Size in bits of given register */ + u8 bit_offset; /* Bit offset within the register */ + u8 access_width; /* Minimum Access size (ACPI 3.0) */ + u64 address; /* 64-bit address of struct or register */ +}; + +struct acpi_table_fadt { ACPI_TABLE_HEADER_DEF /* ACPI common table header */ u32 firmware_ctrl; /* Physical address of FACS */ u32 dsdt; /* Physical address of DSDT */ @@ -99,9 +107,26 @@ struct acpi_table_fadt_rev1 { u8 day_alrm; /* Index to day-of-month alarm in RTC CMOS RAM */ u8 mon_alrm; /* Index to month-of-year alarm in RTC CMOS RAM */ u8 century; /* Index to century in RTC CMOS RAM */ - u8 reserved4; /* Reserved */ - u8 reserved4a; /* Reserved */ - u8 reserved4b; /* Reserved */ + u16 boot_flags; /* IA-PC Boot Architecture Flags (see below for individual flags) */ + u8 reserved; /* Reserved, must be zero */ + u32 flags; /* Miscellaneous flag bits (see below for individual flags) */ + struct acpi_generic_address reset_register; /* 64-bit address of the Reset register */ + u8 reset_value; /* Value to write to the reset_register port to reset the system */ + u16 arm_boot_flags; /* ARM-Specific Boot Flags (see below for individual flags) (ACPI 5.1) */ + u8 minor_revision; /* FADT Minor Revision (ACPI 5.1) */ + u64 Xfacs; /* 64-bit physical address of FACS */ + u64 Xdsdt; /* 64-bit physical address of DSDT */ + struct acpi_generic_address xpm1a_event_block; /* 64-bit Extended Power Mgt 1a Event Reg Blk address */ + struct acpi_generic_address xpm1b_event_block; /* 64-bit Extended Power Mgt 1b Event Reg Blk address */ + struct acpi_generic_address xpm1a_control_block; /* 64-bit Extended Power Mgt 1a Control Reg Blk address */ + struct acpi_generic_address xpm1b_control_block; /* 64-bit Extended Power Mgt 1b Control Reg Blk address */ + struct acpi_generic_address xpm2_control_block; /* 64-bit Extended Power Mgt 2 Control Reg Blk address */ + struct acpi_generic_address xpm_timer_block; /* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */ + struct acpi_generic_address xgpe0_block; /* 64-bit Extended General Purpose Event 0 Reg Blk address */ + struct acpi_generic_address xgpe1_block; /* 64-bit Extended General Purpose Event 1 Reg Blk address */ + struct acpi_generic_address sleep_control; /* 64-bit Sleep Control register (ACPI 5.0) */ + struct acpi_generic_address sleep_status; /* 64-bit Sleep Status register (ACPI 5.0) */ + u64 hypervisor_id; /* Hypervisor Vendor ID (ACPI 6.0) */ }; struct acpi_table_facs_rev1 { diff --git a/x86/s3.c b/x86/s3.c index 910c57fb..6f2d6d10 100644 --- a/x86/s3.c +++ b/x86/s3.c @@ -30,8 +30,8 @@ extern char resume_start, resume_end; int main(int argc, char **argv) { - struct acpi_table_fadt_rev1 *fadt = find_acpi_table_addr(FACP_SIGNATURE); struct acpi_table_facs_rev1 *facs = find_acpi_table_addr(FACS_SIGNATURE); + struct acpi_table_fadt *fadt = find_acpi_table_addr(FACP_SIGNATURE); char *addr, *resume_vec = (void*)0x1000; assert(facs); diff --git a/x86/vmexit.c b/x86/vmexit.c index 6987aca0..3920f441 100644 --- a/x86/vmexit.c +++ b/x86/vmexit.c @@ -206,7 +206,7 @@ int pm_tmr_blk; static void inl_pmtimer(void) { if (!pm_tmr_blk) { - struct acpi_table_fadt_rev1 *fadt; + struct acpi_table_fadt *fadt; fadt = find_acpi_table_addr(FACP_SIGNATURE); pm_tmr_blk = fadt->pm_tmr_blk; From patchwork Mon Feb 13 10:17:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138166 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 49646C636D4 for ; Mon, 13 Feb 2023 10:18:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230321AbjBMKS0 (ORCPT ); Mon, 13 Feb 2023 05:18:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53144 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229713AbjBMKSS (ORCPT ); Mon, 13 Feb 2023 05:18:18 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9954A13D4C for ; Mon, 13 Feb 2023 02:18:17 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id EE9291D15; Mon, 13 Feb 2023 02:18:59 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7A8EE3F703; Mon, 13 Feb 2023 02:18:16 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 11/30] devicetree: Check that fdt is not NULL in dt_available() Date: Mon, 13 Feb 2023 10:17:40 +0000 Message-Id: <20230213101759.2577077-12-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Up until now, for platforms that support DT, kvm-unit-tests would unconditionally use DT to configure the system and the code made the assumption that the fdt will always be a valid pointer. On Arm systems that support both ACPI and DT, kvm-unit-tests plans to follow the same convension as the Linux kernel: attempt to configure the system using the DT first, then fallback to ACPI. As a result, the fdt pointer can be NULL. Check for that in dt_available(). Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones [ Alex E: Minor changes to the commit message ] --- lib/devicetree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/lib/devicetree.c b/lib/devicetree.c index 78c1f6fb..3ff9d164 100644 --- a/lib/devicetree.c +++ b/lib/devicetree.c @@ -16,7 +16,7 @@ const void *dt_fdt(void) bool dt_available(void) { - return fdt_check_header(fdt) == 0; + return fdt && fdt_check_header(fdt) == 0; } int dt_get_nr_cells(int fdtnode, u32 *nr_address_cells, u32 *nr_size_cells) From patchwork Mon Feb 13 10:17:41 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138168 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF6F6C636D7 for ; Mon, 13 Feb 2023 10:18:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230336AbjBMKS3 (ORCPT ); Mon, 13 Feb 2023 05:18:29 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53386 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230354AbjBMKSW (ORCPT ); Mon, 13 Feb 2023 05:18:22 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id E8232166FD for ; Mon, 13 Feb 2023 02:18:18 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2B01D1D31; Mon, 13 Feb 2023 02:19:01 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 90EBB3F703; Mon, 13 Feb 2023 02:18:17 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, Andrew Jones Subject: [PATCH v4 12/30] arm64: Add support for setting up the PSCI conduit through ACPI Date: Mon, 13 Feb 2023 10:17:41 +0000 Message-Id: <20230213101759.2577077-13-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org In systems with ACPI support and when a DT is not provided, we can use the FADT to discover whether PSCI calls need to use smc or hvc calls. This change implements this but retains the default behavior; we check if a valid DT is provided, if not, we try to setup the PSCI conduit using ACPI. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones Reviewed-by: Ricardo Koller --- arm/Makefile.arm64 | 4 ++++ lib/acpi.h | 5 +++++ lib/arm/psci.c | 37 ++++++++++++++++++++++++++++++++++++- 3 files changed, 45 insertions(+), 1 deletion(-) diff --git a/arm/Makefile.arm64 b/arm/Makefile.arm64 index 42e18e77..6dff6cad 100644 --- a/arm/Makefile.arm64 +++ b/arm/Makefile.arm64 @@ -25,6 +25,10 @@ cflatobjs += lib/arm64/processor.o cflatobjs += lib/arm64/spinlock.o cflatobjs += lib/arm64/gic-v3-its.o lib/arm64/gic-v3-its-cmd.o +ifeq ($(CONFIG_EFI),y) +cflatobjs += lib/acpi.o +endif + OBJDIRS += lib/arm64 # arm64 specific tests diff --git a/lib/acpi.h b/lib/acpi.h index 38b6d5c9..5ba6e29d 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -129,6 +129,11 @@ struct acpi_table_fadt { u64 hypervisor_id; /* Hypervisor Vendor ID (ACPI 6.0) */ }; +/* Masks for FADT ARM Boot Architecture Flags (arm_boot_flags) ACPI 5.1 */ + +#define ACPI_FADT_PSCI_COMPLIANT (1) /* 00: [V5+] PSCI 0.2+ is implemented */ +#define ACPI_FADT_PSCI_USE_HVC (1<<1) /* 01: [V5+] HVC must be used instead of SMC as the PSCI conduit */ + struct acpi_table_facs_rev1 { u32 signature; /* ACPI Signature */ u32 length; /* Length of structure, in bytes */ diff --git a/lib/arm/psci.c b/lib/arm/psci.c index 9c031a12..bddb0787 100644 --- a/lib/arm/psci.c +++ b/lib/arm/psci.c @@ -56,7 +56,7 @@ void psci_system_off(void) printf("CPU%d unable to do system off (error = %d)\n", smp_processor_id(), err); } -void psci_set_conduit(void) +static void psci_set_conduit_fdt(void) { const void *fdt = dt_fdt(); const struct fdt_property *method; @@ -75,3 +75,38 @@ void psci_set_conduit(void) else assert_msg(false, "Unknown PSCI conduit: %s", method->data); } + +#ifdef CONFIG_EFI + +#include + +static void psci_set_conduit_acpi(void) +{ + struct acpi_table_fadt *fadt = find_acpi_table_addr(FACP_SIGNATURE); + + assert_msg(fadt, "Unable to find ACPI FADT"); + assert_msg(fadt->arm_boot_flags & ACPI_FADT_PSCI_COMPLIANT, + "PSCI is not supported in this platform"); + + if (fadt->arm_boot_flags & ACPI_FADT_PSCI_USE_HVC) + psci_invoke = psci_invoke_hvc; + else + psci_invoke = psci_invoke_smc; +} + +#else + +static void psci_set_conduit_acpi(void) +{ + assert_msg(false, "ACPI not available"); +} + +#endif + +void psci_set_conduit(void) +{ + if (dt_available()) + psci_set_conduit_fdt(); + else + psci_set_conduit_acpi(); +} From patchwork Mon Feb 13 10:17:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138169 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 23B9AC636D4 for ; Mon, 13 Feb 2023 10:18:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230334AbjBMKSa (ORCPT ); Mon, 13 Feb 2023 05:18:30 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53758 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230318AbjBMKS0 (ORCPT ); Mon, 13 Feb 2023 05:18:26 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 6CF6714E90 for ; Mon, 13 Feb 2023 02:18:20 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 5BC581D34; Mon, 13 Feb 2023 02:19:02 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id C1B013F703; Mon, 13 Feb 2023 02:18:18 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, Andrew Jones Subject: [PATCH v4 13/30] arm64: Add support for discovering the UART through ACPI Date: Mon, 13 Feb 2023 10:17:42 +0000 Message-Id: <20230213101759.2577077-14-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org In systems with ACPI support and when a DT is not provided, we can use the SPCR to discover the serial port address range. This change implements this but retains the default behavior; we check if a valid DT is provided, if not, we try to discover the UART using ACPI. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones Reviewed-by: Ricardo Koller --- lib/acpi.h | 25 +++++++++++++++++++++++++ lib/arm/io.c | 34 +++++++++++++++++++++++++++++----- 2 files changed, 54 insertions(+), 5 deletions(-) diff --git a/lib/acpi.h b/lib/acpi.h index 5ba6e29d..02ca8958 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -17,6 +17,7 @@ #define XSDT_SIGNATURE ACPI_SIGNATURE('X','S','D','T') #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') +#define SPCR_SIGNATURE ACPI_SIGNATURE('S','P','C','R') #define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ (((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ @@ -145,6 +146,30 @@ struct acpi_table_facs_rev1 { u8 reserved3[40]; /* Reserved - must be zero */ }; +struct spcr_descriptor { + ACPI_TABLE_HEADER_DEF /* ACPI common table header */ + u8 interface_type; /* 0=full 16550, 1=subset of 16550 */ + u8 reserved[3]; + struct acpi_generic_address serial_port; + u8 interrupt_type; + u8 pc_interrupt; + u32 interrupt; + u8 baud_rate; + u8 parity; + u8 stop_bits; + u8 flow_control; + u8 terminal_type; + u8 reserved1; + u16 pci_device_id; + u16 pci_vendor_id; + u8 pci_bus; + u8 pci_device; + u8 pci_function; + u32 pci_flags; + u8 pci_segment; + u32 reserved2; +}; + #pragma pack(0) void set_efi_rsdp(struct acpi_table_rsdp *rsdp); diff --git a/lib/arm/io.c b/lib/arm/io.c index 343e1082..19f93490 100644 --- a/lib/arm/io.c +++ b/lib/arm/io.c @@ -29,7 +29,7 @@ static struct spinlock uart_lock; #define UART_EARLY_BASE (u8 *)(unsigned long)CONFIG_UART_EARLY_BASE static volatile u8 *uart0_base = UART_EARLY_BASE; -static void uart0_init(void) +static void uart0_init_fdt(void) { /* * kvm-unit-tests uses the uart only for output. Both uart models have @@ -65,17 +65,41 @@ static void uart0_init(void) } uart0_base = ioremap(base.addr, base.size); +} + +#ifdef CONFIG_EFI + +#include + +static void uart0_init_acpi(void) +{ + struct spcr_descriptor *spcr = find_acpi_table_addr(SPCR_SIGNATURE); + + assert_msg(spcr, "Unable to find ACPI SPCR"); + uart0_base = ioremap(spcr->serial_port.address, spcr->serial_port.bit_width); +} +#else + +static void uart0_init_acpi(void) +{ + assert_msg(false, "ACPI not available"); +} + +#endif + +void io_init(void) +{ + if (dt_available()) + uart0_init_fdt(); + else + uart0_init_acpi(); if (uart0_base != UART_EARLY_BASE) { printf("WARNING: early print support may not work. " "Found uart at %p, but early base is %p.\n", uart0_base, UART_EARLY_BASE); } -} -void io_init(void) -{ - uart0_init(); chr_testdev_init(); } From patchwork Mon Feb 13 10:17:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138170 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2A82AC636CC for ; Mon, 13 Feb 2023 10:18:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230383AbjBMKSc (ORCPT ); Mon, 13 Feb 2023 05:18:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53970 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230361AbjBMKSa (ORCPT ); Mon, 13 Feb 2023 05:18:30 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 4FB081204C for ; Mon, 13 Feb 2023 02:18:21 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 8CA291D6F; Mon, 13 Feb 2023 02:19:03 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id F29A43F703; Mon, 13 Feb 2023 02:18:19 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, Andrew Jones Subject: [PATCH v4 14/30] arm64: Add support for timer initialization through ACPI Date: Mon, 13 Feb 2023 10:17:43 +0000 Message-Id: <20230213101759.2577077-15-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org For systems with ACPI support, we can discover timers through the ACPI GTDT table. This change implements the code to discover timers through the GTDT and adds ACPI support in timer_save_state. This change retains the default behavior; we check if a valid DT is provided, if not, we try to discover timers using ACPI. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones --- arm/Makefile.common | 1 + arm/micro-bench.c | 4 +- arm/timer.c | 10 ++--- lib/acpi.h | 18 +++++++++ lib/arm/asm/timer.h | 2 + lib/arm/setup.c | 39 ------------------- lib/arm/timer.c | 92 +++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 120 insertions(+), 46 deletions(-) create mode 100644 lib/arm/timer.c diff --git a/arm/Makefile.common b/arm/Makefile.common index 3a726c20..c02dd906 100644 --- a/arm/Makefile.common +++ b/arm/Makefile.common @@ -53,6 +53,7 @@ cflatobjs += lib/arm/psci.o cflatobjs += lib/arm/smp.o cflatobjs += lib/arm/delay.o cflatobjs += lib/arm/gic.o lib/arm/gic-v2.o lib/arm/gic-v3.o +cflatobjs += lib/arm/timer.o ifeq ($(CONFIG_EFI),y) cflatobjs += lib/acpi.o diff --git a/arm/micro-bench.c b/arm/micro-bench.c index 84366125..5be9b189 100644 --- a/arm/micro-bench.c +++ b/arm/micro-bench.c @@ -43,7 +43,7 @@ static void gic_irq_handler(struct pt_regs *regs) irq_received = true; gic_write_eoir(irqstat); - if (irqstat == PPI(TIMER_VTIMER_IRQ)) { + if (irqstat == TIMER_VTIMER_IRQ) { write_sysreg((ARCH_TIMER_CTL_IMASK | ARCH_TIMER_CTL_ENABLE), cntv_ctl_el0); isb(); @@ -229,7 +229,7 @@ static bool timer_prep(void) assert_msg(0, "Unreachable"); } - writel(1 << PPI(TIMER_VTIMER_IRQ), gic_isenabler); + writel(1 << TIMER_VTIMER_IRQ, gic_isenabler); write_sysreg(ARCH_TIMER_CTL_IMASK | ARCH_TIMER_CTL_ENABLE, cntv_ctl_el0); isb(); diff --git a/arm/timer.c b/arm/timer.c index c4e7b10f..a4a82812 100644 --- a/arm/timer.c +++ b/arm/timer.c @@ -139,7 +139,7 @@ static struct timer_info ptimer_info = { static void set_timer_irq_enabled(struct timer_info *info, bool enabled) { - u32 val = 1 << PPI(info->irq); + u32 val = 1 << info->irq; if (enabled) writel(val, gic_isenabler); @@ -153,9 +153,9 @@ static void irq_handler(struct pt_regs *regs) u32 irqstat = gic_read_iar(); u32 irqnr = gic_iar_irqnr(irqstat); - if (irqnr == PPI(vtimer_info.irq)) { + if (irqnr == vtimer_info.irq) { info = &vtimer_info; - } else if (irqnr == PPI(ptimer_info.irq)) { + } else if (irqnr == ptimer_info.irq) { info = &ptimer_info; } else { if (irqnr != GICC_INT_SPURIOUS) @@ -185,9 +185,9 @@ static bool gic_timer_check_state(struct timer_info *info, /* Wait for up to 1s for the GIC to sample the interrupt. */ for (i = 0; i < 10; i++) { mdelay(100); - if (gic_irq_state(PPI(info->irq)) == expected_state) { + if (gic_irq_state(info->irq) == expected_state) { mdelay(100); - if (gic_irq_state(PPI(info->irq)) == expected_state) + if (gic_irq_state(info->irq) == expected_state) return true; } } diff --git a/lib/acpi.h b/lib/acpi.h index 02ca8958..9d974ee2 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -18,6 +18,7 @@ #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') #define SPCR_SIGNATURE ACPI_SIGNATURE('S','P','C','R') +#define GTDT_SIGNATURE ACPI_SIGNATURE('G','T','D','T') #define ACPI_SIGNATURE_8BYTE(c1, c2, c3, c4, c5, c6, c7, c8) \ (((uint64_t)(ACPI_SIGNATURE(c1, c2, c3, c4))) | \ @@ -170,6 +171,23 @@ struct spcr_descriptor { u32 reserved2; }; +struct acpi_table_gtdt { + ACPI_TABLE_HEADER_DEF /* ACPI common table header */ + u64 counter_block_addresss; + u32 reserved; + u32 secure_el1_interrupt; + u32 secure_el1_flags; + u32 non_secure_el1_interrupt; + u32 non_secure_el1_flags; + u32 virtual_timer_interrupt; + u32 virtual_timer_flags; + u32 non_secure_el2_interrupt; + u32 non_secure_el2_flags; + u64 counter_read_block_address; + u32 platform_timer_count; + u32 platform_timer_offset; +}; + #pragma pack(0) void set_efi_rsdp(struct acpi_table_rsdp *rsdp); diff --git a/lib/arm/asm/timer.h b/lib/arm/asm/timer.h index f75cc67f..aaf839fc 100644 --- a/lib/arm/asm/timer.h +++ b/lib/arm/asm/timer.h @@ -27,5 +27,7 @@ extern struct timer_state __timer_state; #define TIMER_PTIMER_IRQ (__timer_state.ptimer.irq) #define TIMER_VTIMER_IRQ (__timer_state.vtimer.irq) +void timer_save_state(void); + #endif /* !__ASSEMBLY__ */ #endif /* _ASMARM_TIMER_H_ */ diff --git a/lib/arm/setup.c b/lib/arm/setup.c index bcdf0d78..1572c64e 100644 --- a/lib/arm/setup.c +++ b/lib/arm/setup.c @@ -35,8 +35,6 @@ extern unsigned long etext; -struct timer_state __timer_state; - char *initrd; u32 initrd_size; @@ -199,43 +197,6 @@ static void mem_init(phys_addr_t freemem_start) page_alloc_ops_enable(); } -static void timer_save_state(void) -{ - const struct fdt_property *prop; - const void *fdt = dt_fdt(); - int node, len; - u32 *data; - - node = fdt_node_offset_by_compatible(fdt, -1, "arm,armv8-timer"); - assert(node >= 0 || node == -FDT_ERR_NOTFOUND); - - if (node == -FDT_ERR_NOTFOUND) { - __timer_state.ptimer.irq = -1; - __timer_state.vtimer.irq = -1; - return; - } - - /* - * From Linux devicetree timer binding documentation - * - * interrupts : - * secure timer irq - * non-secure timer irq (ptimer) - * virtual timer irq (vtimer) - * hypervisor timer irq - */ - prop = fdt_get_property(fdt, node, "interrupts", &len); - assert(prop && len == (4 * 3 * sizeof(u32))); - - data = (u32 *)prop->data; - assert(fdt32_to_cpu(data[3]) == 1 /* PPI */); - __timer_state.ptimer.irq = fdt32_to_cpu(data[4]); - __timer_state.ptimer.irq_flags = fdt32_to_cpu(data[5]); - assert(fdt32_to_cpu(data[6]) == 1 /* PPI */); - __timer_state.vtimer.irq = fdt32_to_cpu(data[7]); - __timer_state.vtimer.irq_flags = fdt32_to_cpu(data[8]); -} - void setup(const void *fdt, phys_addr_t freemem_start) { void *freemem; diff --git a/lib/arm/timer.c b/lib/arm/timer.c new file mode 100644 index 00000000..ae702e41 --- /dev/null +++ b/lib/arm/timer.c @@ -0,0 +1,92 @@ +/* + * Initialize timers. + * + * Copyright (C) 2022, Arm Ltd., Nikos Nikoleris + * Copyright (C) 2014, Red Hat Inc, Andrew Jones + * + * This work is licensed under the terms of the GNU LGPL, version 2. + */ +#include +#include +#include +#include +#include +#include + +struct timer_state __timer_state; + +static void timer_save_state_fdt(void) +{ + const struct fdt_property *prop; + const void *fdt = dt_fdt(); + int node, len; + u32 *data; + + node = fdt_node_offset_by_compatible(fdt, -1, "arm,armv8-timer"); + assert(node >= 0 || node == -FDT_ERR_NOTFOUND); + + if (node == -FDT_ERR_NOTFOUND) { + __timer_state.ptimer.irq = -1; + __timer_state.vtimer.irq = -1; + return; + } + + /* + * From Linux devicetree timer binding documentation + * + * interrupts : + * secure timer irq + * non-secure timer irq (ptimer) + * virtual timer irq (vtimer) + * hypervisor timer irq + */ + prop = fdt_get_property(fdt, node, "interrupts", &len); + assert(prop && len == (4 * 3 * sizeof(u32))); + + data = (u32 *) prop->data; + assert(fdt32_to_cpu(data[3]) == 1 /* PPI */ ); + __timer_state.ptimer.irq = PPI(fdt32_to_cpu(data[4])); + __timer_state.ptimer.irq_flags = fdt32_to_cpu(data[5]); + assert(fdt32_to_cpu(data[6]) == 1 /* PPI */ ); + __timer_state.vtimer.irq = PPI(fdt32_to_cpu(data[7])); + __timer_state.vtimer.irq_flags = fdt32_to_cpu(data[8]); +} + +#ifdef CONFIG_EFI + +#include + +static void timer_save_state_acpi(void) +{ + struct acpi_table_gtdt *gtdt = find_acpi_table_addr(GTDT_SIGNATURE); + + if (!gtdt) { + printf("Cannot find ACPI GTDT"); + __timer_state.ptimer.irq = -1; + __timer_state.vtimer.irq = -1; + return; + } + + __timer_state.ptimer.irq = gtdt->non_secure_el1_interrupt; + __timer_state.ptimer.irq_flags = gtdt->non_secure_el1_flags; + + __timer_state.vtimer.irq = gtdt->virtual_timer_interrupt; + __timer_state.vtimer.irq_flags = gtdt->virtual_timer_flags; +} + +#else + +static void timer_save_state_acpi(void) +{ + assert_msg(false, "ACPI not available"); +} + +#endif + +void timer_save_state(void) +{ + if (dt_available()) + timer_save_state_fdt(); + else + timer_save_state_acpi(); +} From patchwork Mon Feb 13 10:17:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138171 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC080C636D4 for ; Mon, 13 Feb 2023 10:18:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230423AbjBMKSe (ORCPT ); Mon, 13 Feb 2023 05:18:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230350AbjBMKSb (ORCPT ); Mon, 13 Feb 2023 05:18:31 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 5DE03269D for ; Mon, 13 Feb 2023 02:18:22 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id BD8C31D70; Mon, 13 Feb 2023 02:19:04 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2F4043F703; Mon, 13 Feb 2023 02:18:21 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, Andrew Jones Subject: [PATCH v4 15/30] arm64: Add support for cpu initialization through ACPI Date: Mon, 13 Feb 2023 10:17:44 +0000 Message-Id: <20230213101759.2577077-16-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org In systems with ACPI support and when a DT is not provided, we can use the MADTs to discover the number of CPUs and their corresponding MIDR. This change implements this but retains the default behavior; we check if a valid DT is provided, if not, we try to discover the cores in the system using ACPI. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones --- lib/acpi.c | 20 ++++++++++++++++ lib/acpi.h | 63 +++++++++++++++++++++++++++++++++++++++++++++++++ lib/arm/setup.c | 42 ++++++++++++++++++++++++++++++--- 3 files changed, 122 insertions(+), 3 deletions(-) diff --git a/lib/acpi.c b/lib/acpi.c index a197f3dd..bbe33d08 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -102,3 +102,23 @@ void *find_acpi_table_addr(u32 sig) return NULL; } + +void acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler) +{ + struct acpi_table_madt *madt; + struct acpi_subtable_header *header; + void *end; + + madt = find_acpi_table_addr(MADT_SIGNATURE); + assert(madt); + + header = (void *)(ulong) madt + sizeof(struct acpi_table_madt); + end = (void *)((ulong) madt + madt->length); + + while ((void *)header < end) { + if (header->type == mtype) + handler(header); + + header = (void *)(ulong) header + header->length; + } +} diff --git a/lib/acpi.h b/lib/acpi.h index 9d974ee2..af02fd83 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -17,6 +17,7 @@ #define XSDT_SIGNATURE ACPI_SIGNATURE('X','S','D','T') #define FACP_SIGNATURE ACPI_SIGNATURE('F','A','C','P') #define FACS_SIGNATURE ACPI_SIGNATURE('F','A','C','S') +#define MADT_SIGNATURE ACPI_SIGNATURE('A','P','I','C') #define SPCR_SIGNATURE ACPI_SIGNATURE('S','P','C','R') #define GTDT_SIGNATURE ACPI_SIGNATURE('G','T','D','T') @@ -147,6 +148,67 @@ struct acpi_table_facs_rev1 { u8 reserved3[40]; /* Reserved - must be zero */ }; +struct acpi_table_madt { + ACPI_TABLE_HEADER_DEF /* ACPI common table header */ + u32 address; /* Physical address of local APIC */ + u32 flags; +}; + +struct acpi_subtable_header { + u8 type; + u8 length; +}; + +typedef int (*acpi_table_handler)(struct acpi_subtable_header *header); + +/* 11: Generic interrupt - GICC (ACPI 5.0 + ACPI 6.0 + ACPI 6.3 changes) */ + +struct acpi_madt_generic_interrupt { + u8 type; + u8 length; + u16 reserved; /* reserved - must be zero */ + u32 cpu_interface_number; + u32 uid; + u32 flags; + u32 parking_version; + u32 performance_interrupt; + u64 parked_address; + u64 base_address; + u64 gicv_base_address; + u64 gich_base_address; + u32 vgic_interrupt; + u64 gicr_base_address; + u64 arm_mpidr; + u8 efficiency_class; + u8 reserved2[1]; + u16 spe_interrupt; /* ACPI 6.3 */ +}; + +/* Values for MADT subtable type in struct acpi_subtable_header */ + +enum acpi_madt_type { + ACPI_MADT_TYPE_LOCAL_APIC = 0, + ACPI_MADT_TYPE_IO_APIC = 1, + ACPI_MADT_TYPE_INTERRUPT_OVERRIDE = 2, + ACPI_MADT_TYPE_NMI_SOURCE = 3, + ACPI_MADT_TYPE_LOCAL_APIC_NMI = 4, + ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE = 5, + ACPI_MADT_TYPE_IO_SAPIC = 6, + ACPI_MADT_TYPE_LOCAL_SAPIC = 7, + ACPI_MADT_TYPE_INTERRUPT_SOURCE = 8, + ACPI_MADT_TYPE_LOCAL_X2APIC = 9, + ACPI_MADT_TYPE_LOCAL_X2APIC_NMI = 10, + ACPI_MADT_TYPE_GENERIC_INTERRUPT = 11, + ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR = 12, + ACPI_MADT_TYPE_GENERIC_MSI_FRAME = 13, + ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR = 14, + ACPI_MADT_TYPE_GENERIC_TRANSLATOR = 15, + ACPI_MADT_TYPE_RESERVED = 16 /* 16 and greater are reserved */ +}; + +/* MADT Local APIC flags */ +#define ACPI_MADT_ENABLED (1) /* 00: Processor is usable if set */ + struct spcr_descriptor { ACPI_TABLE_HEADER_DEF /* ACPI common table header */ u8 interface_type; /* 0=full 16550, 1=subset of 16550 */ @@ -192,5 +254,6 @@ struct acpi_table_gtdt { void set_efi_rsdp(struct acpi_table_rsdp *rsdp); void *find_acpi_table_addr(u32 sig); +void acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler); #endif diff --git a/lib/arm/setup.c b/lib/arm/setup.c index 1572c64e..59b0aedd 100644 --- a/lib/arm/setup.c +++ b/lib/arm/setup.c @@ -55,7 +55,7 @@ int mpidr_to_cpu(uint64_t mpidr) return -1; } -static void cpu_set(int fdtnode __unused, u64 regval, void *info __unused) +static void cpu_set_fdt(int fdtnode __unused, u64 regval, void *info __unused) { int cpu = nr_cpus++; @@ -65,13 +65,49 @@ static void cpu_set(int fdtnode __unused, u64 regval, void *info __unused) set_cpu_present(cpu, true); } +#ifdef CONFIG_EFI + +#include + +static int cpu_set_acpi(struct acpi_subtable_header *header) +{ + int cpu = nr_cpus++; + struct acpi_madt_generic_interrupt *gicc = (void *)header; + + assert_msg(cpu < NR_CPUS, "Number cpus exceeds maximum supported (%d).", NR_CPUS); + + cpus[cpu] = gicc->arm_mpidr; + set_cpu_present(cpu, true); + + return 0; +} + +static void cpu_init_acpi(void) +{ + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT, cpu_set_acpi); +} + +#else + +static void cpu_init_acpi(void) +{ + assert_msg(false, "ACPI not available"); +} + +#endif + static void cpu_init(void) { int ret; nr_cpus = 0; - ret = dt_for_each_cpu_node(cpu_set, NULL); - assert(ret == 0); + if (dt_available()) { + ret = dt_for_each_cpu_node(cpu_set_fdt, NULL); + assert(ret == 0); + } else { + cpu_init_acpi(); + } + set_cpu_online(0, true); } From patchwork Mon Feb 13 10:17:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138172 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EDF5DC636CC for ; Mon, 13 Feb 2023 10:18:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230271AbjBMKSf (ORCPT ); Mon, 13 Feb 2023 05:18:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230361AbjBMKSd (ORCPT ); Mon, 13 Feb 2023 05:18:33 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id BA70F166F1 for ; Mon, 13 Feb 2023 02:18:23 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D41481DB5; Mon, 13 Feb 2023 02:19:05 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 606343F703; Mon, 13 Feb 2023 02:18:22 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 16/30] arm64: Add support for gic initialization through ACPI Date: Mon, 13 Feb 2023 10:17:45 +0000 Message-Id: <20230213101759.2577077-17-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org In systems with ACPI support and when a DT is not provided, we can use the MADTs to figure out if it implements a GICv2 or a GICv3 and discover the GIC parameters. This change implements this but retains the default behavior; we check if a valid DT is provided, if not, we try to discover the cores in the system using ACPI. Signed-off-by: Nikos Nikoleris --- lib/acpi.c | 9 +++- lib/acpi.h | 46 +++++++++++++++- lib/arm/gic.c | 139 ++++++++++++++++++++++++++++++++++++++++++++++++- lib/libcflat.h | 1 + 4 files changed, 191 insertions(+), 4 deletions(-) diff --git a/lib/acpi.c b/lib/acpi.c index bbe33d08..760cd8b2 100644 --- a/lib/acpi.c +++ b/lib/acpi.c @@ -103,11 +103,12 @@ void *find_acpi_table_addr(u32 sig) return NULL; } -void acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler) +int acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler) { struct acpi_table_madt *madt; struct acpi_subtable_header *header; void *end; + int count = 0; madt = find_acpi_table_addr(MADT_SIGNATURE); assert(madt); @@ -116,9 +117,13 @@ void acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler end = (void *)((ulong) madt + madt->length); while ((void *)header < end) { - if (header->type == mtype) + if (header->type == mtype) { handler(header); + count++; + } header = (void *)(ulong) header + header->length; } + + return count; } diff --git a/lib/acpi.h b/lib/acpi.h index af02fd83..a2c0f982 100644 --- a/lib/acpi.h +++ b/lib/acpi.h @@ -184,6 +184,50 @@ struct acpi_madt_generic_interrupt { u16 spe_interrupt; /* ACPI 6.3 */ }; +#define ACPI_MADT_ENABLED (1) /* 00: Processor is usable if set */ + +/* 12: Generic Distributor (ACPI 5.0 + ACPI 6.0 changes) */ + +struct acpi_madt_generic_distributor { + struct acpi_subtable_header header; + u16 reserved; /* reserved - must be zero */ + u32 gic_id; + u64 base_address; + u32 global_irq_base; + u8 version; + u8 reserved2[3]; /* reserved - must be zero */ +}; + +/* Values for Version field above */ + +enum acpi_madt_gic_version { + ACPI_MADT_GIC_VERSION_NONE = 0, + ACPI_MADT_GIC_VERSION_V1 = 1, + ACPI_MADT_GIC_VERSION_V2 = 2, + ACPI_MADT_GIC_VERSION_V3 = 3, + ACPI_MADT_GIC_VERSION_V4 = 4, + ACPI_MADT_GIC_VERSION_RESERVED = 5 /* 5 and greater are reserved */ +}; + +/* 14: Generic Redistributor (ACPI 5.1) */ + +struct acpi_madt_generic_redistributor { + struct acpi_subtable_header header; + u16 reserved; /* reserved - must be zero */ + u64 base_address; + u32 length; +}; + +/* 15: Generic Translator (ACPI 6.0) */ + +struct acpi_madt_generic_translator { + struct acpi_subtable_header header; + u16 reserved; /* reserved - must be zero */ + u32 translation_id; + u64 base_address; + u32 reserved2; +}; + /* Values for MADT subtable type in struct acpi_subtable_header */ enum acpi_madt_type { @@ -254,6 +298,6 @@ struct acpi_table_gtdt { void set_efi_rsdp(struct acpi_table_rsdp *rsdp); void *find_acpi_table_addr(u32 sig); -void acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler); +int acpi_table_parse_madt(enum acpi_madt_type mtype, acpi_table_handler handler); #endif diff --git a/lib/arm/gic.c b/lib/arm/gic.c index 1bfcfcfb..8fc5596f 100644 --- a/lib/arm/gic.c +++ b/lib/arm/gic.c @@ -3,6 +3,7 @@ * * This work is licensed under the terms of the GNU LGPL, version 2. */ +#include #include #include #include @@ -120,7 +121,7 @@ int gic_version(void) return 0; } -int gic_init(void) +static int gic_init_fdt(void) { if (gicv2_init()) { gic_common_ops = &gicv2_common_ops; @@ -133,6 +134,142 @@ int gic_init(void) return gic_version(); } +#ifdef CONFIG_EFI + +#define ACPI_GICV2_DIST_MEM_SIZE (SZ_4K) +#define ACPI_GIC_CPU_IF_MEM_SIZE (SZ_8K) +#define ACPI_GICV3_DIST_MEM_SIZE (SZ_64K) +#define ACPI_GICV3_ITS_MEM_SIZE (SZ_128K) + +static int gic_acpi_version(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_distributor *dist = (void *)header; + int version = dist->version; + + if (version == 2) + gic_common_ops = &gicv2_common_ops; + else if (version == 3) + gic_common_ops = &gicv3_common_ops; + + return version; +} + +static int gicv2_acpi_parse_madt_cpu(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_interrupt *gicc = (void *)header; + static phys_addr_t gicc_base_address; + + if (!(gicc->flags & ACPI_MADT_ENABLED)) + return 0; + + if (!gicc_base_address) { + gicc_base_address = gicc->base_address; + gicv2_data.cpu_base = ioremap(gicc_base_address, ACPI_GIC_CPU_IF_MEM_SIZE); + } + assert(gicc_base_address == gicc->base_address); + + return 0; +} + +static int gicv2_acpi_parse_madt_dist(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_distributor *dist = (void *)header; + + gicv2_data.dist_base = ioremap(dist->base_address, ACPI_GICV2_DIST_MEM_SIZE); + + return 0; +} + +static int gicv3_acpi_parse_madt_gicc(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_interrupt *gicc = (void *)header; + static phys_addr_t gicr_base_address; + + if (!(gicc->flags & ACPI_MADT_ENABLED)) + return 0; + + if (!gicr_base_address) { + gicr_base_address = gicc->gicr_base_address; + gicv3_data.redist_bases[0] = ioremap(gicr_base_address, SZ_64K * 2); + } + assert(gicr_base_address == gicc->gicr_base_address); + + return 0; +} + +static int gicv3_acpi_parse_madt_dist(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_distributor *dist = (void *)header; + + gicv3_data.dist_base = ioremap(dist->base_address, ACPI_GICV3_DIST_MEM_SIZE); + + return 0; +} + +static int gicv3_acpi_parse_madt_redist(struct acpi_subtable_header *header) +{ + static int i; + struct acpi_madt_generic_redistributor *redist = (void *)header; + + gicv3_data.redist_bases[i++] = ioremap(redist->base_address, redist->length); + + return 0; +} + +static int gicv3_acpi_parse_madt_its(struct acpi_subtable_header *header) +{ + struct acpi_madt_generic_translator *its_entry = (void *)header; + + its_data.base = ioremap(its_entry->base_address, ACPI_GICV3_ITS_MEM_SIZE - 1); + + return 0; +} + +static int gic_init_acpi(void) +{ + int count; + + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR, gic_acpi_version); + if (gic_version() == 2) { + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT, + gicv2_acpi_parse_madt_cpu); + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR, + gicv2_acpi_parse_madt_dist); + } else if (gic_version() == 3) { + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR, + gicv3_acpi_parse_madt_dist); + count = acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR, + gicv3_acpi_parse_madt_redist); + if (!count) + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_INTERRUPT, + gicv3_acpi_parse_madt_gicc); + acpi_table_parse_madt(ACPI_MADT_TYPE_GENERIC_TRANSLATOR, + gicv3_acpi_parse_madt_its); +#ifdef __aarch64__ + its_init(); +#endif + } + + return gic_version(); +} + +#else + +static int gic_init_acpi(void) +{ + assert_msg(false, "ACPI not available"); +} + +#endif /* CONFIG_EFI */ + +int gic_init(void) +{ + if (dt_available()) + return gic_init_fdt(); + else + return gic_init_acpi(); +} + void gic_enable_defaults(void) { if (!gic_common_ops) { diff --git a/lib/libcflat.h b/lib/libcflat.h index c1fd31ff..700f4352 100644 --- a/lib/libcflat.h +++ b/lib/libcflat.h @@ -161,6 +161,7 @@ extern void setup_vm(void); #define SZ_8K (1 << 13) #define SZ_16K (1 << 14) #define SZ_64K (1 << 16) +#define SZ_128K (1 << 17) #define SZ_1M (1 << 20) #define SZ_2M (1 << 21) #define SZ_1G (1 << 30) From patchwork Mon Feb 13 10:17:46 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138174 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6B93FC636D4 for ; Mon, 13 Feb 2023 10:18:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230403AbjBMKSm (ORCPT ); Mon, 13 Feb 2023 05:18:42 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54214 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230430AbjBMKSj (ORCPT ); Mon, 13 Feb 2023 05:18:39 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id D68F817160 for ; Mon, 13 Feb 2023 02:18:24 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 16A2A1E2F; Mon, 13 Feb 2023 02:19:07 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 769A63F703; Mon, 13 Feb 2023 02:18:23 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, Andrew Jones Subject: [PATCH v4 17/30] lib/printf: Support for precision modifier in printf Date: Mon, 13 Feb 2023 10:17:46 +0000 Message-Id: <20230213101759.2577077-18-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This follows the typical format of: printf("%.Ns", *str); Where N might be a decimal digit string or '*'. This feature is used by a future change. See also: man 3 printf Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones --- lib/printf.c | 95 ++++++++++++++++++++++++++++++++++++++++++---------- 1 file changed, 78 insertions(+), 17 deletions(-) diff --git a/lib/printf.c b/lib/printf.c index 383799ec..d600199b 100644 --- a/lib/printf.c +++ b/lib/printf.c @@ -6,6 +6,7 @@ */ #include "libcflat.h" +#include "ctype.h" #define BUFSZ 2000 @@ -19,6 +20,7 @@ typedef struct strprops { char pad; int npad; bool alternate; + int precision; } strprops_t; static void addchar(pstream_t *p, char c) @@ -43,7 +45,7 @@ static void print_str(pstream_t *p, const char *s, strprops_t props) } } - while (*s) + while (*s && props.precision--) addchar(p, *s++); if (npad < 0) { @@ -73,12 +75,13 @@ static void print_int(pstream_t *ps, long long n, int base, strprops_t props) n /= base; } + while (p == buf || (p - buf < props.precision)) + *p++ = '0'; + props.precision = -1; + if (s) *p++ = '-'; - if (p == buf) - *p++ = '0'; - for (i = 0; i < (p - buf) / 2; ++i) { char tmp; @@ -104,8 +107,13 @@ static void print_unsigned(pstream_t *ps, unsigned long long n, int base, } if (p == buf) + props.alternate = false; + + while (p == buf || (p - buf < props.precision)) *p++ = '0'; - else if (props.alternate && base == 16) { + props.precision = -1; + + if (props.alternate && base == 16) { if (props.pad == '0') { addchar(ps, '0'); addchar(ps, 'x'); @@ -147,9 +155,56 @@ static int fmtnum(const char **fmt) return num; } +/* + * Adapted from drivers/firmware/efi/libstub/vsprintf.c + */ +static int skip_atoi(const char **s) +{ + int i = 0; + + do { + i = i*10 + *((*s)++) - '0'; + } while (isdigit(**s)); + + return i; +} + +/* + * Adapted from drivers/firmware/efi/libstub/vsprintf.c + */ +static int get_int(const char **fmt, va_list *ap) +{ + if (isdigit(**fmt)) + return skip_atoi(fmt); + + if (**fmt == '*') { + ++(*fmt); + /* it's the next argument */ + return va_arg(*ap, int); + } + return 0; +} + int vsnprintf(char *buf, int size, const char *fmt, va_list va) { pstream_t s; + va_list args; + + /* + * We want to pass our input va_list to helper functions by reference, + * but there's an annoying edge case. If va_list was originally passed + * to us by value, we could just pass &ap down to the helpers. This is + * the case on, for example, X86_32. + * However, on X86_64 (and possibly others), va_list is actually a + * size-1 array containing a structure. Our function parameter ap has + * decayed from T[1] to T*, and &ap has type T** rather than T(*)[1], + * which is what will be expected by a function taking a va_list * + * parameter. + * One standard way to solve this mess is by creating a copy in a local + * variable of type va_list and then passing a pointer to that local + * copy instead, which is what we do here. + */ + va_copy(args, va); s.buffer = buf; s.remain = size - 1; @@ -160,6 +215,7 @@ int vsnprintf(char *buf, int size, const char *fmt, va_list va) strprops_t props; memset(&props, 0, sizeof(props)); props.pad = ' '; + props.precision = -1; if (f != '%') { addchar(&s, f); @@ -172,11 +228,15 @@ morefmt: addchar(&s, '%'); break; case 'c': - addchar(&s, va_arg(va, int)); + addchar(&s, va_arg(args, int)); break; case '\0': --fmt; break; + case '.': + props.pad = ' '; + props.precision = get_int(&fmt, &args); + goto morefmt; case '#': props.alternate = true; goto morefmt; @@ -204,54 +264,55 @@ morefmt: case 'd': switch (nlong) { case 0: - print_int(&s, va_arg(va, int), 10, props); + print_int(&s, va_arg(args, int), 10, props); break; case 1: - print_int(&s, va_arg(va, long), 10, props); + print_int(&s, va_arg(args, long), 10, props); break; default: - print_int(&s, va_arg(va, long long), 10, props); + print_int(&s, va_arg(args, long long), 10, props); break; } break; case 'u': switch (nlong) { case 0: - print_unsigned(&s, va_arg(va, unsigned), 10, props); + print_unsigned(&s, va_arg(args, unsigned int), 10, props); break; case 1: - print_unsigned(&s, va_arg(va, unsigned long), 10, props); + print_unsigned(&s, va_arg(args, unsigned long), 10, props); break; default: - print_unsigned(&s, va_arg(va, unsigned long long), 10, props); + print_unsigned(&s, va_arg(args, unsigned long long), 10, props); break; } break; case 'x': switch (nlong) { case 0: - print_unsigned(&s, va_arg(va, unsigned), 16, props); + print_unsigned(&s, va_arg(args, unsigned int), 16, props); break; case 1: - print_unsigned(&s, va_arg(va, unsigned long), 16, props); + print_unsigned(&s, va_arg(args, unsigned long), 16, props); break; default: - print_unsigned(&s, va_arg(va, unsigned long long), 16, props); + print_unsigned(&s, va_arg(args, unsigned long long), 16, props); break; } break; case 'p': props.alternate = true; - print_unsigned(&s, (unsigned long)va_arg(va, void *), 16, props); + print_unsigned(&s, (unsigned long)va_arg(args, void *), 16, props); break; case 's': - print_str(&s, va_arg(va, const char *), props); + print_str(&s, va_arg(args, const char *), props); break; default: addchar(&s, f); break; } } + va_end(args); *s.buffer = 0; return s.added; } From patchwork Mon Feb 13 10:17:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138173 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 95A16C636D7 for ; Mon, 13 Feb 2023 10:18:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230449AbjBMKSn (ORCPT ); Mon, 13 Feb 2023 05:18:43 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54228 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230483AbjBMKSk (ORCPT ); Mon, 13 Feb 2023 05:18:40 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 0D6D912F32 for ; Mon, 13 Feb 2023 02:18:25 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2CA3B1E32; Mon, 13 Feb 2023 02:19:08 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id AD4C13F703; Mon, 13 Feb 2023 02:18:24 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 18/30] lib/printf: Add support for printing wide strings Date: Mon, 13 Feb 2023 10:17:47 +0000 Message-Id: <20230213101759.2577077-19-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change adds support for wide strings (u16*) to printf() variants. This feature is used by a future change. Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- lib/printf.c | 101 ++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 100 insertions(+), 1 deletion(-) diff --git a/lib/printf.c b/lib/printf.c index d600199b..27041bb4 100644 --- a/lib/printf.c +++ b/lib/printf.c @@ -58,6 +58,102 @@ static void print_str(pstream_t *p, const char *s, strprops_t props) } } +/* + * Adapted from drivers/firmware/efi/libstub/vsprintf.c + */ +static u32 utf16_to_utf32(const u16 **s16) +{ + u16 c0, c1; + + c0 = *(*s16)++; + /* not a surrogate */ + if ((c0 & 0xf800) != 0xd800) + return c0; + /* invalid: low surrogate instead of high */ + if (c0 & 0x0400) + return 0xfffd; + c1 = **s16; + /* invalid: missing low surrogate */ + if ((c1 & 0xfc00) != 0xdc00) + return 0xfffd; + /* valid surrogate pair */ + ++(*s16); + return (0x10000 - (0xd800 << 10) - 0xdc00) + (c0 << 10) + c1; +} + +/* + * Adapted from drivers/firmware/efi/libstub/vsprintf.c + */ +static size_t utf16s_utf8nlen(const u16 *s16, size_t maxlen) +{ + size_t len, clen; + + for (len = 0; len < maxlen && *s16; len += clen) { + u16 c0 = *s16++; + + /* First, get the length for a BMP character */ + clen = 1 + (c0 >= 0x80) + (c0 >= 0x800); + if (len + clen > maxlen) + break; + /* + * If this is a high surrogate, and we're already at maxlen, we + * can't include the character if it's a valid surrogate pair. + * Avoid accessing one extra word just to check if it's valid + * or not. + */ + if ((c0 & 0xfc00) == 0xd800) { + if (len + clen == maxlen) + break; + if ((*s16 & 0xfc00) == 0xdc00) { + ++s16; + ++clen; + } + } + } + + return len; +} + +/* + * Adapted from drivers/firmware/efi/libstub/vsprintf.c + */ +static void print_wstring(pstream_t *p, const u16 *s, strprops_t props) +{ + const u16 *ws = (const u16 *)s; + size_t pos = 0, size = p->remain + 1, len = utf16s_utf8nlen(ws, props.precision); + + while (len-- > 0) { + u32 c32 = utf16_to_utf32(&ws); + u8 *s8; + size_t clen; + + if (c32 < 0x80) { + addchar(p, c32); + continue; + } + + /* Number of trailing octets */ + clen = 1 + (c32 >= 0x800) + (c32 >= 0x10000); + + len -= clen; + s8 = (u8 *)(p->buffer - p->added + pos); + + /* Avoid writing partial character */ + addchar(p, '\0'); + pos += clen; + if (pos >= size) + continue; + + /* Set high bits of leading octet */ + *s8 = (0xf00 >> 1) >> clen; + /* Write trailing octets in reverse order */ + for (s8 += clen; clen; --clen, c32 >>= 6) + *s8-- = 0x80 | (c32 & 0x3f); + /* Set low bits of leading octet */ + *s8 |= c32; + } +} + static char digits[16] = "0123456789abcdef"; static void print_int(pstream_t *ps, long long n, int base, strprops_t props) @@ -305,7 +401,10 @@ morefmt: print_unsigned(&s, (unsigned long)va_arg(args, void *), 16, props); break; case 's': - print_str(&s, va_arg(args, const char *), props); + if (nlong) + print_wstring(&s, va_arg(args, const u16 *), props); + else + print_str(&s, va_arg(args, const char *), props); break; default: addchar(&s, f); From patchwork Mon Feb 13 10:17:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138175 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 256A4C636D7 for ; Mon, 13 Feb 2023 10:18:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230372AbjBMKSq (ORCPT ); Mon, 13 Feb 2023 05:18:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54208 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230430AbjBMKSo (ORCPT ); Mon, 13 Feb 2023 05:18:44 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id DA808E3AE for ; Mon, 13 Feb 2023 02:18:26 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 42F7D1E4D; Mon, 13 Feb 2023 02:19:09 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id C33753F703; Mon, 13 Feb 2023 02:18:25 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 19/30] lib/efi: Add support for getting the cmdline Date: Mon, 13 Feb 2023 10:17:48 +0000 Message-Id: <20230213101759.2577077-20-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change adds support for discovering the command line arguments, as a string. Then, we parse this string to populate __argc and __argv for EFI tests. Signed-off-by: Nikos Nikoleris --- lib/argv.c | 2 +- lib/argv.h | 1 + lib/efi.c | 102 ++++++++++++++++++++++++++++++++++++++++++++++++ lib/linux/efi.h | 20 ++++++++++ 4 files changed, 124 insertions(+), 1 deletion(-) diff --git a/lib/argv.c b/lib/argv.c index 9ffa673e..fa5ff9ae 100644 --- a/lib/argv.c +++ b/lib/argv.c @@ -41,7 +41,7 @@ void __setup_args(void) __argc = argv - __argv; } -static void setup_args(const char *args) +void setup_args(const char *args) { if (!args) return; diff --git a/lib/argv.h b/lib/argv.h index 1fd746dc..0fa77725 100644 --- a/lib/argv.h +++ b/lib/argv.h @@ -9,6 +9,7 @@ #define _ARGV_H_ extern void __setup_args(void); +extern void setup_args(const char *args); extern void setup_args_progname(const char *args); extern void setup_env(char *env, int size); extern void add_setup_arg(const char *arg); diff --git a/lib/efi.c b/lib/efi.c index 64cc9789..f524ec9b 100644 --- a/lib/efi.c +++ b/lib/efi.c @@ -8,6 +8,9 @@ */ #include "efi.h" +#include +#include +#include #include #include @@ -96,6 +99,80 @@ static void efi_exit(efi_status_t code) efi_rs_call(reset_system, EFI_RESET_SHUTDOWN, code, 0, NULL); } +/* Adapted from drivers/firmware/efi/libstub/efi-stub.c */ +static char *efi_convert_cmdline(struct efi_loaded_image_64 *image, int *cmd_line_len) +{ + const u16 *s2; + unsigned long cmdline_addr = 0; + int options_chars = image->load_options_size; + const u16 *options = image->load_options; + int options_bytes = 0, safe_options_bytes = 0; /* UTF-8 bytes */ + bool in_quote = false; + efi_status_t status; + const int COMMAND_LINE_SIZE = 2048; + + if (options) { + s2 = options; + while (options_bytes < COMMAND_LINE_SIZE && options_chars--) { + u16 c = *s2++; + + if (c < 0x80) { + if (c == L'\0' || c == L'\n') + break; + if (c == L'"') + in_quote = !in_quote; + else if (!in_quote && isspace((char)c)) + safe_options_bytes = options_bytes; + + options_bytes++; + continue; + } + + /* + * Get the number of UTF-8 bytes corresponding to a + * UTF-16 character. + * The first part handles everything in the BMP. + */ + options_bytes += 2 + (c >= 0x800); + /* + * Add one more byte for valid surrogate pairs. Invalid + * surrogates will be replaced with 0xfffd and take up + * only 3 bytes. + */ + if ((c & 0xfc00) == 0xd800) { + /* + * If the very last word is a high surrogate, + * we must ignore it since we can't access the + * low surrogate. + */ + if (!options_chars) { + options_bytes -= 3; + } else if ((*s2 & 0xfc00) == 0xdc00) { + options_bytes++; + options_chars--; + s2++; + } + } + } + if (options_bytes >= COMMAND_LINE_SIZE) { + options_bytes = safe_options_bytes; + printf("Command line is too long: truncated to %d bytes\n", + options_bytes); + } + } + + options_bytes++; /* NUL termination */ + + status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, options_bytes, (void **)&cmdline_addr); + if (status != EFI_SUCCESS) + return NULL; + + snprintf((char *)cmdline_addr, options_bytes, "%.*ls", options_bytes - 1, options); + + *cmd_line_len = options_bytes; + return (char *)cmdline_addr; +} + efi_status_t efi_main(efi_handle_t handle, efi_system_table_t *sys_tab) { int ret; @@ -109,6 +186,31 @@ efi_status_t efi_main(efi_handle_t handle, efi_system_table_t *sys_tab) unsigned long map_size = 0, desc_size = 0, key = 0, buff_size = 0; u32 desc_ver; + /* Helper variables needed to get the cmdline */ + struct efi_loaded_image_64 *image; + efi_guid_t loaded_image_proto = LOADED_IMAGE_PROTOCOL_GUID; + char *cmdline_ptr = NULL; + int cmdline_size = 0; + + /* + * Get a handle to the loaded image protocol. This is used to get + * information about the running image, such as size and the command + * line. + */ + status = efi_bs_call(handle_protocol, handle, &loaded_image_proto, (void *)&image); + if (status != EFI_SUCCESS) { + printf("Failed to get loaded image protocol\n"); + goto efi_main_error; + } + + cmdline_ptr = efi_convert_cmdline(image, &cmdline_size); + if (!cmdline_ptr) { + printf("getting command line via LOADED_IMAGE_PROTOCOL\n"); + status = EFI_OUT_OF_RESOURCES; + goto efi_main_error; + } + setup_args(cmdline_ptr); + /* Set up efi_bootinfo */ efi_bootinfo.mem_map.map = ↦ efi_bootinfo.mem_map.map_size = &map_size; diff --git a/lib/linux/efi.h b/lib/linux/efi.h index 455625aa..9a1cf87b 100644 --- a/lib/linux/efi.h +++ b/lib/linux/efi.h @@ -60,6 +60,8 @@ typedef guid_t efi_guid_t; #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) +#define LOADED_IMAGE_PROTOCOL_GUID EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) + typedef struct { efi_guid_t guid; void *table; @@ -416,6 +418,24 @@ struct efi_boot_memmap { unsigned long *buff_size; }; +#define __aligned_u64 u64 __attribute__((aligned(8))) + +struct efi_loaded_image_64 { + u32 revision; + efi_handle_t parent_handle; + efi_system_table_t *system_table; + efi_handle_t device_handle; + void *file_path; + void *reserved; + u32 load_options_size; + void *load_options; + void *image_base; + __aligned_u64 image_size; + unsigned int image_code_type; + unsigned int image_data_type; + efi_status_t (__efiapi * unload)(efi_handle_t image_handle); +}; + #define efi_bs_call(func, ...) efi_system_table->boottime->func(__VA_ARGS__) #define efi_rs_call(func, ...) efi_system_table->runtime->func(__VA_ARGS__) From patchwork Mon Feb 13 10:17:49 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138176 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4742CC636D4 for ; Mon, 13 Feb 2023 10:18:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230460AbjBMKSs (ORCPT ); Mon, 13 Feb 2023 05:18:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54380 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229841AbjBMKSr (ORCPT ); Mon, 13 Feb 2023 05:18:47 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 6C4D910A8A for ; Mon, 13 Feb 2023 02:18:28 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7445A1E5E; Mon, 13 Feb 2023 02:19:10 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D9B4B3F703; Mon, 13 Feb 2023 02:18:26 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: Andrew Jones , pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 20/30] arm/arm64: Rename etext to _etext Date: Mon, 13 Feb 2023 10:17:49 +0000 Message-Id: <20230213101759.2577077-21-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Andrew Jones Rename etext to the more popular _etext allowing different linker scripts to more easily be used. Signed-off-by: Andrew Jones Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- arm/flat.lds | 2 +- lib/arm/setup.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arm/flat.lds b/arm/flat.lds index 47fcb649..9016ac9f 100644 --- a/arm/flat.lds +++ b/arm/flat.lds @@ -27,7 +27,7 @@ SECTIONS PROVIDE(_text = .); .text : { *(.init) *(.text) *(.text.*) } . = ALIGN(64K); - PROVIDE(etext = .); + PROVIDE(_etext = .); PROVIDE(reloc_start = .); .rela.dyn : { *(.rela.dyn) } diff --git a/lib/arm/setup.c b/lib/arm/setup.c index 59b0aedd..03a4098e 100644 --- a/lib/arm/setup.c +++ b/lib/arm/setup.c @@ -33,7 +33,7 @@ #define NR_EXTRA_MEM_REGIONS 16 #define NR_INITIAL_MEM_REGIONS (MAX_DT_MEM_REGIONS + NR_EXTRA_MEM_REGIONS) -extern unsigned long etext; +extern unsigned long _etext; char *initrd; u32 initrd_size; @@ -157,7 +157,7 @@ unsigned int mem_region_get_flags(phys_addr_t paddr) static void mem_regions_add_assumed(void) { - phys_addr_t code_end = (phys_addr_t)(unsigned long)&etext; + phys_addr_t code_end = (phys_addr_t)(unsigned long)&_etext; struct mem_region *r; r = mem_region_find(code_end - 1); From patchwork Mon Feb 13 10:17:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138181 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3D341C636CC for ; Mon, 13 Feb 2023 10:19:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231127AbjBMKTF (ORCPT ); Mon, 13 Feb 2023 05:19:05 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54558 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230506AbjBMKTC (ORCPT ); Mon, 13 Feb 2023 05:19:02 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id AD5C312F32 for ; Mon, 13 Feb 2023 02:18:43 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A5CC21E7D; Mon, 13 Feb 2023 02:19:11 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 16B673F703; Mon, 13 Feb 2023 02:18:27 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com, Andrew Jones Subject: [PATCH v4 21/30] lib: Avoid ms_abi for calls related to EFI on arm64 Date: Mon, 13 Feb 2023 10:17:50 +0000 Message-Id: <20230213101759.2577077-22-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org x86_64 requires that EFI calls use the ms_abi calling convention. For arm64 this is unnecessary. Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones --- lib/linux/efi.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/linux/efi.h b/lib/linux/efi.h index 9a1cf87b..53748dd4 100644 --- a/lib/linux/efi.h +++ b/lib/linux/efi.h @@ -33,7 +33,11 @@ typedef u16 efi_char16_t; /* UNICODE character */ typedef u64 efi_physical_addr_t; typedef void *efi_handle_t; +#ifdef __x86_64__ #define __efiapi __attribute__((ms_abi)) +#else +#define __efiapi +#endif /* * The UEFI spec and EDK2 reference implementation both define EFI_GUID as From patchwork Mon Feb 13 10:17:51 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138182 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3DD14C636D7 for ; Mon, 13 Feb 2023 10:19:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230478AbjBMKTG (ORCPT ); Mon, 13 Feb 2023 05:19:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54520 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231128AbjBMKTD (ORCPT ); Mon, 13 Feb 2023 05:19:03 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id DEDB316AED for ; Mon, 13 Feb 2023 02:18:44 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D6F211E8D; Mon, 13 Feb 2023 02:19:12 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 4853F3F703; Mon, 13 Feb 2023 02:18:29 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: Andrew Jones , pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 22/30] arm64: Add a new type of memory type flag MR_F_RESERVED Date: Mon, 13 Feb 2023 10:17:51 +0000 Message-Id: <20230213101759.2577077-23-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Andrew Jones This will be used by future change to add PTE entries for special EFI memory regions. Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- lib/arm/asm/setup.h | 1 + lib/arm/mmu.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/lib/arm/asm/setup.h b/lib/arm/asm/setup.h index f0e70b11..64cd379b 100644 --- a/lib/arm/asm/setup.h +++ b/lib/arm/asm/setup.h @@ -15,6 +15,7 @@ extern int nr_cpus; #define MR_F_IO (1U << 0) #define MR_F_CODE (1U << 1) +#define MR_F_RESERVED (1U << 2) #define MR_F_UNKNOWN (1U << 31) struct mem_region { diff --git a/lib/arm/mmu.c b/lib/arm/mmu.c index e1a72fe4..931be985 100644 --- a/lib/arm/mmu.c +++ b/lib/arm/mmu.c @@ -174,6 +174,10 @@ void *setup_mmu(phys_addr_t phys_end, void *unused) for (r = mem_regions; r->end; ++r) { if (r->flags & MR_F_IO) { continue; + } else if (r->flags & MR_F_RESERVED) { + /* Reserved pages need to be writable for whatever reserved them */ + mmu_set_range_ptes(mmu_idmap, r->start, r->start, r->end, + __pgprot(PTE_WBWA)); } else if (r->flags & MR_F_CODE) { /* armv8 requires code shared between EL1 and EL0 to be read-only */ mmu_set_range_ptes(mmu_idmap, r->start, r->start, r->end, From patchwork Mon Feb 13 10:17:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138177 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0BFAC636D4 for ; Mon, 13 Feb 2023 10:18:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230521AbjBMKS6 (ORCPT ); Mon, 13 Feb 2023 05:18:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54516 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229841AbjBMKSy (ORCPT ); Mon, 13 Feb 2023 05:18:54 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 75A1F126D8 for ; Mon, 13 Feb 2023 02:18:31 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id ED1971EA6; Mon, 13 Feb 2023 02:19:13 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 797363F703; Mon, 13 Feb 2023 02:18:30 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 23/30] arm64: Add a setup sequence for systems that boot through EFI Date: Mon, 13 Feb 2023 10:17:52 +0000 Message-Id: <20230213101759.2577077-24-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change implements an alternative setup sequence for the system when we are booting through EFI. The memory map is discovered through EFI boot services and devices through ACPI. This change is based on a change initially proposed by Andrew Jones Signed-off-by: Nikos Nikoleris --- arm/cstart.S | 1 + arm/cstart64.S | 1 + lib/arm/asm/setup.h | 8 ++ lib/arm/setup.c | 181 +++++++++++++++++++++++++++++++++++++++++++- lib/linux/efi.h | 1 + 5 files changed, 190 insertions(+), 2 deletions(-) diff --git a/arm/cstart.S b/arm/cstart.S index 7036e67f..3dd71ed9 100644 --- a/arm/cstart.S +++ b/arm/cstart.S @@ -242,6 +242,7 @@ asm_mmu_disable: * * Input r0 is the stack top, which is the exception stacks base */ +.globl exceptions_init exceptions_init: mrc p15, 0, r2, c1, c0, 0 @ read SCTLR bic r2, #CR_V @ SCTLR.V := 0 diff --git a/arm/cstart64.S b/arm/cstart64.S index e4ab7d06..223c1092 100644 --- a/arm/cstart64.S +++ b/arm/cstart64.S @@ -265,6 +265,7 @@ asm_mmu_disable: * Vectors */ +.globl exceptions_init exceptions_init: adrp x4, vector_table add x4, x4, :lo12:vector_table diff --git a/lib/arm/asm/setup.h b/lib/arm/asm/setup.h index 64cd379b..06069116 100644 --- a/lib/arm/asm/setup.h +++ b/lib/arm/asm/setup.h @@ -38,4 +38,12 @@ extern unsigned int mem_region_get_flags(phys_addr_t paddr); void setup(const void *fdt, phys_addr_t freemem_start); +#ifdef CONFIG_EFI + +#include + +efi_status_t setup_efi(efi_bootinfo_t *efi_bootinfo); + +#endif + #endif /* _ASMARM_SETUP_H_ */ diff --git a/lib/arm/setup.c b/lib/arm/setup.c index 03a4098e..cab19b1e 100644 --- a/lib/arm/setup.c +++ b/lib/arm/setup.c @@ -33,7 +33,7 @@ #define NR_EXTRA_MEM_REGIONS 16 #define NR_INITIAL_MEM_REGIONS (MAX_DT_MEM_REGIONS + NR_EXTRA_MEM_REGIONS) -extern unsigned long _etext; +extern unsigned long _text, _etext, _data, _edata; char *initrd; u32 initrd_size; @@ -43,7 +43,10 @@ int nr_cpus; static struct mem_region __initial_mem_regions[NR_INITIAL_MEM_REGIONS + 1]; struct mem_region *mem_regions = __initial_mem_regions; -phys_addr_t __phys_offset, __phys_end; +phys_addr_t __phys_offset = (phys_addr_t)-1, __phys_end = 0; + +extern void exceptions_init(void); +extern void asm_mmu_disable(void); int mpidr_to_cpu(uint64_t mpidr) { @@ -289,3 +292,177 @@ void setup(const void *fdt, phys_addr_t freemem_start) if (!(auxinfo.flags & AUXINFO_MMU_OFF)) setup_vm(); } + +#ifdef CONFIG_EFI + +#include + +static efi_status_t setup_rsdp(efi_bootinfo_t *efi_bootinfo) +{ + efi_status_t status; + struct acpi_table_rsdp *rsdp; + + /* + * RSDP resides in an EFI_ACPI_RECLAIM_MEMORY region, which is not used + * by kvm-unit-tests arm64 memory allocator. So it is not necessary to + * copy the data structure to another memory region to prevent + * unintentional overwrite. + */ + status = efi_get_system_config_table(ACPI_20_TABLE_GUID, (void **)&rsdp); + if (status != EFI_SUCCESS) + return status; + + set_efi_rsdp(rsdp); + + return EFI_SUCCESS; +} + +static efi_status_t efi_mem_init(efi_bootinfo_t *efi_bootinfo) +{ + int i; + unsigned long free_mem_pages = 0; + unsigned long free_mem_start = 0; + struct efi_boot_memmap *map = &(efi_bootinfo->mem_map); + efi_memory_desc_t *buffer = *map->map; + efi_memory_desc_t *d = NULL; + phys_addr_t base, top; + struct mem_region *r; + uintptr_t text = (uintptr_t)&_text, etext = __ALIGN((uintptr_t)&_etext, 4096); + uintptr_t data = (uintptr_t)&_data, edata = __ALIGN((uintptr_t)&_edata, 4096); + + /* + * Record the largest free EFI_CONVENTIONAL_MEMORY region + * which will be used to set up the memory allocator, so that + * the memory allocator can work in the largest free + * continuous memory region. + */ + for (i = 0, r = &mem_regions[0]; i < *(map->map_size); i += *(map->desc_size), ++r) { + d = (efi_memory_desc_t *)(&((u8 *)buffer)[i]); + + r->start = d->phys_addr; + r->end = d->phys_addr + d->num_pages * EFI_PAGE_SIZE; + + switch (d->type) { + case EFI_RESERVED_TYPE: + case EFI_LOADER_DATA: + case EFI_BOOT_SERVICES_CODE: + case EFI_BOOT_SERVICES_DATA: + case EFI_RUNTIME_SERVICES_CODE: + case EFI_RUNTIME_SERVICES_DATA: + case EFI_UNUSABLE_MEMORY: + case EFI_ACPI_RECLAIM_MEMORY: + case EFI_ACPI_MEMORY_NVS: + case EFI_PAL_CODE: + r->flags = MR_F_RESERVED; + break; + case EFI_MEMORY_MAPPED_IO: + case EFI_MEMORY_MAPPED_IO_PORT_SPACE: + r->flags = MR_F_IO; + break; + case EFI_LOADER_CODE: + if (r->start <= text && r->end > text) { + /* This is the unit test region. Flag the code separately. */ + phys_addr_t tmp = r->end; + + assert(etext <= data); + assert(edata <= r->end); + r->flags = MR_F_CODE; + r->end = data; + ++r; + r->start = data; + r->end = tmp; + } else { + r->flags = MR_F_RESERVED; + } + break; + case EFI_CONVENTIONAL_MEMORY: + if (free_mem_pages < d->num_pages) { + free_mem_pages = d->num_pages; + free_mem_start = d->phys_addr; + } + break; + } + + if (!(r->flags & MR_F_IO)) { + if (r->start < __phys_offset) + __phys_offset = r->start; + if (r->end > __phys_end) + __phys_end = r->end; + } + } + __phys_end &= PHYS_MASK; + asm_mmu_disable(); + + if (free_mem_pages == 0) + return EFI_OUT_OF_RESOURCES; + + assert(sizeof(long) == 8 || free_mem_start < (3ul << 30)); + + phys_alloc_init(free_mem_start, free_mem_pages << EFI_PAGE_SHIFT); + phys_alloc_set_minimum_alignment(SMP_CACHE_BYTES); + + phys_alloc_get_unused(&base, &top); + base = PAGE_ALIGN(base); + top = top & PAGE_MASK; + assert(sizeof(long) == 8 || !(base >> 32)); + if (sizeof(long) != 8 && (top >> 32) != 0) + top = ((uint64_t)1 << 32); + page_alloc_init_area(0, base >> PAGE_SHIFT, top >> PAGE_SHIFT); + page_alloc_ops_enable(); + + return EFI_SUCCESS; +} + +efi_status_t setup_efi(efi_bootinfo_t *efi_bootinfo) +{ + efi_status_t status; + + struct thread_info *ti = current_thread_info(); + + memset(ti, 0, sizeof(*ti)); + + exceptions_init(); + + status = efi_mem_init(efi_bootinfo); + if (status != EFI_SUCCESS) { + printf("Failed to initialize memory: "); + switch (status) { + case EFI_OUT_OF_RESOURCES: + printf("No free memory region\n"); + break; + default: + printf("Unknown error\n"); + break; + } + return status; + } + + status = setup_rsdp(efi_bootinfo); + if (status != EFI_SUCCESS) { + printf("Cannot find RSDP in EFI system table\n"); + return status; + } + + psci_set_conduit(); + cpu_init(); + /* cpu_init must be called before thread_info_init */ + thread_info_init(current_thread_info(), 0); + /* mem_init must be called before io_init */ + io_init(); + + timer_save_state(); + if (initrd) { + /* environ is currently the only file in the initrd */ + char *env = malloc(initrd_size); + + memcpy(env, initrd, initrd_size); + setup_env(env, initrd_size); + } + + if (!(auxinfo.flags & AUXINFO_MMU_OFF)) + setup_vm(); + + return EFI_SUCCESS; +} + +#endif diff --git a/lib/linux/efi.h b/lib/linux/efi.h index 53748dd4..89f9a9e0 100644 --- a/lib/linux/efi.h +++ b/lib/linux/efi.h @@ -63,6 +63,7 @@ typedef guid_t efi_guid_t; (c) & 0xff, ((c) >> 8) & 0xff, d } } #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d) +#define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81) #define LOADED_IMAGE_PROTOCOL_GUID EFI_GUID(0x5b1b31a1, 0x9562, 0x11d2, 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b) From patchwork Mon Feb 13 10:17:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138183 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DEE24C636D4 for ; Mon, 13 Feb 2023 10:19:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231192AbjBMKT0 (ORCPT ); Mon, 13 Feb 2023 05:19:26 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231183AbjBMKTS (ORCPT ); Mon, 13 Feb 2023 05:19:18 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 98A98E3B4 for ; Mon, 13 Feb 2023 02:19:03 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 0F4A41EDB; Mon, 13 Feb 2023 02:19:15 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 8FB8C3F703; Mon, 13 Feb 2023 02:18:31 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 24/30] arm64: Copy code from GNU-EFI Date: Mon, 13 Feb 2023 10:17:53 +0000 Message-Id: <20230213101759.2577077-25-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change adds unmodified dependencies that we need from GNU-EFI in order to build arm64 EFI apps. GNU-EFI sources from https://git.code.sf.net/p/gnu-efi/code v3.0.14 Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- arm/efi/crt0-efi-aarch64.S | 130 ++++++++++++++++++++++++++++++++++++ arm/efi/elf_aarch64_efi.lds | 63 +++++++++++++++++ arm/efi/reloc_aarch64.c | 97 +++++++++++++++++++++++++++ 3 files changed, 290 insertions(+) create mode 100644 arm/efi/crt0-efi-aarch64.S create mode 100644 arm/efi/elf_aarch64_efi.lds create mode 100644 arm/efi/reloc_aarch64.c diff --git a/arm/efi/crt0-efi-aarch64.S b/arm/efi/crt0-efi-aarch64.S new file mode 100644 index 00000000..d50e78dd --- /dev/null +++ b/arm/efi/crt0-efi-aarch64.S @@ -0,0 +1,130 @@ +/* + * crt0-efi-aarch64.S - PE/COFF header for AArch64 EFI applications + * + * Copright (C) 2014 Linaro Ltd. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice and this list of conditions, without modification. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License as published by the Free Software Foundation; + * either version 2 of the License, or (at your option) any later version. + */ + + .section .text.head + + /* + * Magic "MZ" signature for PE/COFF + */ + .globl ImageBase +ImageBase: + .ascii "MZ" + .skip 58 // 'MZ' + pad + offset == 64 + .long pe_header - ImageBase // Offset to the PE header. +pe_header: + .ascii "PE" + .short 0 +coff_header: + .short 0xaa64 // AArch64 + .short 2 // nr_sections + .long 0 // TimeDateStamp + .long 0 // PointerToSymbolTable + .long 0 // NumberOfSymbols + .short section_table - optional_header // SizeOfOptionalHeader + .short 0x206 // Characteristics. + // IMAGE_FILE_DEBUG_STRIPPED | + // IMAGE_FILE_EXECUTABLE_IMAGE | + // IMAGE_FILE_LINE_NUMS_STRIPPED +optional_header: + .short 0x20b // PE32+ format + .byte 0x02 // MajorLinkerVersion + .byte 0x14 // MinorLinkerVersion + .long _data - _start // SizeOfCode + .long _data_size // SizeOfInitializedData + .long 0 // SizeOfUninitializedData + .long _start - ImageBase // AddressOfEntryPoint + .long _start - ImageBase // BaseOfCode + +extra_header_fields: + .quad 0 // ImageBase + .long 0x1000 // SectionAlignment + .long 0x200 // FileAlignment + .short 0 // MajorOperatingSystemVersion + .short 0 // MinorOperatingSystemVersion + .short 0 // MajorImageVersion + .short 0 // MinorImageVersion + .short 0 // MajorSubsystemVersion + .short 0 // MinorSubsystemVersion + .long 0 // Win32VersionValue + + .long _edata - ImageBase // SizeOfImage + + // Everything before the kernel image is considered part of the header + .long _start - ImageBase // SizeOfHeaders + .long 0 // CheckSum + .short EFI_SUBSYSTEM // Subsystem + .short 0 // DllCharacteristics + .quad 0 // SizeOfStackReserve + .quad 0 // SizeOfStackCommit + .quad 0 // SizeOfHeapReserve + .quad 0 // SizeOfHeapCommit + .long 0 // LoaderFlags + .long 0x6 // NumberOfRvaAndSizes + + .quad 0 // ExportTable + .quad 0 // ImportTable + .quad 0 // ResourceTable + .quad 0 // ExceptionTable + .quad 0 // CertificationTable + .quad 0 // BaseRelocationTable + + // Section table +section_table: + .ascii ".text\0\0\0" + .long _data - _start // VirtualSize + .long _start - ImageBase // VirtualAddress + .long _data - _start // SizeOfRawData + .long _start - ImageBase // PointerToRawData + + .long 0 // PointerToRelocations (0 for executables) + .long 0 // PointerToLineNumbers (0 for executables) + .short 0 // NumberOfRelocations (0 for executables) + .short 0 // NumberOfLineNumbers (0 for executables) + .long 0x60000020 // Characteristics (section flags) + + .ascii ".data\0\0\0" + .long _data_size // VirtualSize + .long _data - ImageBase // VirtualAddress + .long _data_size // SizeOfRawData + .long _data - ImageBase // PointerToRawData + + .long 0 // PointerToRelocations (0 for executables) + .long 0 // PointerToLineNumbers (0 for executables) + .short 0 // NumberOfRelocations (0 for executables) + .short 0 // NumberOfLineNumbers (0 for executables) + .long 0xc0000040 // Characteristics (section flags) + + .align 12 +_start: + stp x29, x30, [sp, #-32]! + mov x29, sp + + stp x0, x1, [sp, #16] + mov x2, x0 + mov x3, x1 + adr x0, ImageBase + adrp x1, _DYNAMIC + add x1, x1, #:lo12:_DYNAMIC + bl _relocate + cbnz x0, 0f + + ldp x0, x1, [sp, #16] + bl efi_main + +0: ldp x29, x30, [sp], #32 + ret diff --git a/arm/efi/elf_aarch64_efi.lds b/arm/efi/elf_aarch64_efi.lds new file mode 100644 index 00000000..836d9825 --- /dev/null +++ b/arm/efi/elf_aarch64_efi.lds @@ -0,0 +1,63 @@ +OUTPUT_FORMAT("elf64-littleaarch64", "elf64-littleaarch64", "elf64-littleaarch64") +OUTPUT_ARCH(aarch64) +ENTRY(_start) +SECTIONS +{ + .text 0x0 : { + _text = .; + *(.text.head) + *(.text) + *(.text.*) + *(.gnu.linkonce.t.*) + *(.srodata) + *(.rodata*) + . = ALIGN(16); + } + _etext = .; + _text_size = . - _text; + .dynamic : { *(.dynamic) } + .data : ALIGN(4096) + { + _data = .; + *(.sdata) + *(.data) + *(.data1) + *(.data.*) + *(.got.plt) + *(.got) + + /* the EFI loader doesn't seem to like a .bss section, so we stick + it all into .data: */ + . = ALIGN(16); + _bss = .; + *(.sbss) + *(.scommon) + *(.dynbss) + *(.bss) + *(COMMON) + . = ALIGN(16); + _bss_end = .; + } + + .rela.dyn : { *(.rela.dyn) } + .rela.plt : { *(.rela.plt) } + .rela.got : { *(.rela.got) } + .rela.data : { *(.rela.data) *(.rela.data*) } + . = ALIGN(512); + _edata = .; + _data_size = . - _data; + + . = ALIGN(4096); + .dynsym : { *(.dynsym) } + . = ALIGN(4096); + .dynstr : { *(.dynstr) } + . = ALIGN(4096); + .note.gnu.build-id : { *(.note.gnu.build-id) } + /DISCARD/ : + { + *(.rel.reloc) + *(.eh_frame) + *(.note.GNU-stack) + } + .comment 0 : { *(.comment) } +} diff --git a/arm/efi/reloc_aarch64.c b/arm/efi/reloc_aarch64.c new file mode 100644 index 00000000..08672796 --- /dev/null +++ b/arm/efi/reloc_aarch64.c @@ -0,0 +1,97 @@ +/* reloc_aarch64.c - position independent x86 ELF shared object relocator + Copyright (C) 2014 Linaro Ltd. + Copyright (C) 1999 Hewlett-Packard Co. + Contributed by David Mosberger . + + All rights reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions + are met: + + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above + copyright notice, this list of conditions and the following + disclaimer in the documentation and/or other materials + provided with the distribution. + * Neither the name of Hewlett-Packard Co. nor the names of its + contributors may be used to endorse or promote products derived + from this software without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND + CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, + INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS + BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, + OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR + TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF + THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + SUCH DAMAGE. +*/ + +#include +#include + +#include + +EFI_STATUS _relocate (long ldbase, Elf64_Dyn *dyn, + EFI_HANDLE image EFI_UNUSED, + EFI_SYSTEM_TABLE *systab EFI_UNUSED) +{ + long relsz = 0, relent = 0; + Elf64_Rela *rel = 0; + unsigned long *addr; + int i; + + for (i = 0; dyn[i].d_tag != DT_NULL; ++i) { + switch (dyn[i].d_tag) { + case DT_RELA: + rel = (Elf64_Rela*) + ((unsigned long)dyn[i].d_un.d_ptr + + ldbase); + break; + + case DT_RELASZ: + relsz = dyn[i].d_un.d_val; + break; + + case DT_RELAENT: + relent = dyn[i].d_un.d_val; + break; + + default: + break; + } + } + + if (!rel && relent == 0) + return EFI_SUCCESS; + + if (!rel || relent == 0) + return EFI_LOAD_ERROR; + + while (relsz > 0) { + /* apply the relocs */ + switch (ELF64_R_TYPE (rel->r_info)) { + case R_AARCH64_NONE: + break; + + case R_AARCH64_RELATIVE: + addr = (unsigned long *) + (ldbase + rel->r_offset); + *addr = ldbase + rel->r_addend; + break; + + default: + break; + } + rel = (Elf64_Rela*) ((char *) rel + relent); + relsz -= relent; + } + return EFI_SUCCESS; +} From patchwork Mon Feb 13 10:17:54 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138178 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E8D9CC636CC for ; Mon, 13 Feb 2023 10:19:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231124AbjBMKTA (ORCPT ); Mon, 13 Feb 2023 05:19:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54546 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230498AbjBMKS4 (ORCPT ); Mon, 13 Feb 2023 05:18:56 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 40CC911EBC for ; Mon, 13 Feb 2023 02:18:34 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 25C2E1F02; Mon, 13 Feb 2023 02:19:16 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id A66883F703; Mon, 13 Feb 2023 02:18:32 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 25/30] arm64: Change GNU-EFI imported code to use defined types Date: Mon, 13 Feb 2023 10:17:54 +0000 Message-Id: <20230213101759.2577077-26-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Convert some types to avoid dependency on gnu-efi's and . Signed-off-by: Nikos Nikoleris --- arm/efi/reloc_aarch64.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/arm/efi/reloc_aarch64.c b/arm/efi/reloc_aarch64.c index 08672796..fa0cd6bc 100644 --- a/arm/efi/reloc_aarch64.c +++ b/arm/efi/reloc_aarch64.c @@ -34,14 +34,11 @@ SUCH DAMAGE. */ -#include -#include - +#include "efi.h" #include -EFI_STATUS _relocate (long ldbase, Elf64_Dyn *dyn, - EFI_HANDLE image EFI_UNUSED, - EFI_SYSTEM_TABLE *systab EFI_UNUSED) +efi_status_t _relocate(long ldbase, Elf64_Dyn *dyn, efi_handle_t image, + efi_system_table_t *sys_tab) { long relsz = 0, relent = 0; Elf64_Rela *rel = 0; From patchwork Mon Feb 13 10:17:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138184 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7BA4EC636D4 for ; Mon, 13 Feb 2023 10:19:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230026AbjBMKTh (ORCPT ); Mon, 13 Feb 2023 05:19:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55268 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231169AbjBMKTa (ORCPT ); Mon, 13 Feb 2023 05:19:30 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 4E07316AF7 for ; Mon, 13 Feb 2023 02:19:18 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 3BFA81F37; Mon, 13 Feb 2023 02:19:17 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id BC5643F703; Mon, 13 Feb 2023 02:18:33 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 26/30] arm64: Use code from the gnu-efi when booting with EFI Date: Mon, 13 Feb 2023 10:17:55 +0000 Message-Id: <20230213101759.2577077-27-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org arm/efi/crt0-efi-aarch64.S defines the header and the handover sequence from EFI to a efi_main. This change includes the whole file in arm/cstart64.S when we compile with EFI support. In addition, we change the handover code in arm/efi/crt0-efi-aarch64.S to align the stack pointer. This alignment is necessary because we make assumptions about cpu0's stack alignment and most importantly we place its thread_info at the bottom of this stack. Signed-off-by: Nikos Nikoleris --- arm/cstart64.S | 6 ++++++ arm/efi/crt0-efi-aarch64.S | 19 +++++++++++++++---- 2 files changed, 21 insertions(+), 4 deletions(-) diff --git a/arm/cstart64.S b/arm/cstart64.S index 223c1092..cbd6b511 100644 --- a/arm/cstart64.S +++ b/arm/cstart64.S @@ -15,6 +15,10 @@ #include #include +#ifdef CONFIG_EFI +#include "efi/crt0-efi-aarch64.S" +#else + .macro zero_range, tmp1, tmp2 9998: cmp \tmp1, \tmp2 b.eq 9997f @@ -107,6 +111,8 @@ start: bl exit b halt +#endif + .text /* diff --git a/arm/efi/crt0-efi-aarch64.S b/arm/efi/crt0-efi-aarch64.S index d50e78dd..5d0dc04a 100644 --- a/arm/efi/crt0-efi-aarch64.S +++ b/arm/efi/crt0-efi-aarch64.S @@ -111,10 +111,17 @@ section_table: .align 12 _start: - stp x29, x30, [sp, #-32]! + stp x29, x30, [sp, #-16]! + + /* Align sp; this is necessary due to way we store cpu0's thread_info */ mov x29, sp + mov x30, sp + and x30, x30, #THREAD_MASK + mov sp, x30 + str x29, [sp, #-16]! + + stp x0, x1, [sp, #-16]! - stp x0, x1, [sp, #16] mov x2, x0 mov x3, x1 adr x0, ImageBase @@ -123,8 +130,12 @@ _start: bl _relocate cbnz x0, 0f - ldp x0, x1, [sp, #16] + ldp x0, x1, [sp], #16 bl efi_main -0: ldp x29, x30, [sp], #32 + /* Restore sp */ + ldr x30, [sp], #16 + mov sp, x30 + +0: ldp x29, x30, [sp], #16 ret From patchwork Mon Feb 13 10:17:56 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138186 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3EFD0C636D4 for ; Mon, 13 Feb 2023 10:20:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231168AbjBMKUG (ORCPT ); Mon, 13 Feb 2023 05:20:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55668 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231204AbjBMKTy (ORCPT ); Mon, 13 Feb 2023 05:19:54 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9A2221204C for ; Mon, 13 Feb 2023 02:19:30 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 51FAB1F60; Mon, 13 Feb 2023 02:19:18 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id D29FF3F703; Mon, 13 Feb 2023 02:18:34 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 27/30] lib: Avoid external dependency in libelf Date: Mon, 13 Feb 2023 10:17:56 +0000 Message-Id: <20230213101759.2577077-28-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org There is just a small number of definitions we need from uapi/linux/elf.h and asm/elf.h and the relocation code is self-contained. Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- arm/efi/reloc_aarch64.c | 3 +-- lib/elf.h | 57 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 58 insertions(+), 2 deletions(-) create mode 100644 lib/elf.h diff --git a/arm/efi/reloc_aarch64.c b/arm/efi/reloc_aarch64.c index fa0cd6bc..3f6d9a6d 100644 --- a/arm/efi/reloc_aarch64.c +++ b/arm/efi/reloc_aarch64.c @@ -34,8 +34,7 @@ SUCH DAMAGE. */ -#include "efi.h" -#include +#include efi_status_t _relocate(long ldbase, Elf64_Dyn *dyn, efi_handle_t image, efi_system_table_t *sys_tab) diff --git a/lib/elf.h b/lib/elf.h new file mode 100644 index 00000000..abd5cf4b --- /dev/null +++ b/lib/elf.h @@ -0,0 +1,57 @@ +/* SPDX-License-Identifier: LGPL-2.0-or-later */ +/* + * Relevant definitions from uapi/linux/elf.h and asm/elf.h + */ + +#ifndef _ELF_H_ +#define _ELF_H_ + +#include + +/* 64-bit ELF base types. */ +typedef u64 Elf64_Addr; +typedef u64 Elf64_Xword; +typedef s64 Elf64_Sxword; + +typedef struct { + Elf64_Sxword d_tag; /* entry tag value */ + union { + Elf64_Xword d_val; + Elf64_Addr d_ptr; + } d_un; +} Elf64_Dyn; + +typedef struct elf64_rel { + Elf64_Addr r_offset; /* Location at which to apply the action */ + Elf64_Xword r_info; /* index and type of relocation */ +} Elf64_Rel; + +typedef struct elf64_rela { + Elf64_Addr r_offset; /* Location at which to apply the action */ + Elf64_Xword r_info; /* index and type of relocation */ + Elf64_Sxword r_addend; /* Constant addend used to compute value */ +} Elf64_Rela; + +/* This is the info that is needed to parse the dynamic section of the file */ +#define DT_NULL 0 +#define DT_RELA 7 +#define DT_RELASZ 8 +#define DT_RELAENT 9 + +/* x86 relocation types. */ +#define R_X86_64_NONE 0 /* No reloc */ +#define R_X86_64_RELATIVE 8 /* Adjust by program base */ + + +/* + * AArch64 static relocation types. + */ + +/* Miscellaneous. */ +#define R_AARCH64_NONE 256 +#define R_AARCH64_RELATIVE 1027 + +/* The following are used with relocations */ +#define ELF64_R_TYPE(i) ((i) & 0xffffffff) + +#endif /* _ELF_H_ */ From patchwork Mon Feb 13 10:17:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138180 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EBCEEC636D4 for ; Mon, 13 Feb 2023 10:19:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230480AbjBMKTD (ORCPT ); Mon, 13 Feb 2023 05:19:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54568 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230502AbjBMKS7 (ORCPT ); Mon, 13 Feb 2023 05:18:59 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 20844D50B for ; Mon, 13 Feb 2023 02:18:39 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6846C1F91; Mon, 13 Feb 2023 02:19:19 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id E8C843F703; Mon, 13 Feb 2023 02:18:35 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 28/30] arm64: Add support for efi in Makefile Date: Mon, 13 Feb 2023 10:17:57 +0000 Message-Id: <20230213101759.2577077-29-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Users can now build kvm-unit-tests as efi apps by supplying an extra argument when invoking configure: $> ./configure --enable-efi This patch is based on an earlier version by Andrew Jones Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- arm/Makefile.arm | 6 ++++++ arm/Makefile.arm64 | 18 ++++++++++++++---- arm/Makefile.common | 45 ++++++++++++++++++++++++++++++++++----------- configure | 15 ++++++++++++--- 4 files changed, 66 insertions(+), 18 deletions(-) diff --git a/arm/Makefile.arm b/arm/Makefile.arm index 01fd4c7b..2ce00f52 100644 --- a/arm/Makefile.arm +++ b/arm/Makefile.arm @@ -7,6 +7,10 @@ bits = 32 ldarch = elf32-littlearm machine = -marm -mfpu=vfp +ifeq ($(CONFIG_EFI),y) +$(error Cannot build arm32 tests as EFI apps) +endif + # stack.o relies on frame pointers. KEEP_FRAME_POINTER := y @@ -32,6 +36,8 @@ cflatobjs += lib/arm/stack.o cflatobjs += lib/ldiv32.o cflatobjs += lib/arm/ldivmod.o +exe = flat + # arm specific tests tests = diff --git a/arm/Makefile.arm64 b/arm/Makefile.arm64 index 6dff6cad..eada7f9a 100644 --- a/arm/Makefile.arm64 +++ b/arm/Makefile.arm64 @@ -31,11 +31,21 @@ endif OBJDIRS += lib/arm64 +ifeq ($(CONFIG_EFI),y) +# avoid jump tables before all relocations have been processed +arm/efi/reloc_aarch64.o: CFLAGS += -fno-jump-tables +cflatobjs += arm/efi/reloc_aarch64.o + +exe = efi +else +exe = flat +endif + # arm64 specific tests -tests = $(TEST_DIR)/timer.flat -tests += $(TEST_DIR)/micro-bench.flat -tests += $(TEST_DIR)/cache.flat -tests += $(TEST_DIR)/debug.flat +tests = $(TEST_DIR)/timer.$(exe) +tests += $(TEST_DIR)/micro-bench.$(exe) +tests += $(TEST_DIR)/cache.$(exe) +tests += $(TEST_DIR)/debug.$(exe) include $(SRCDIR)/$(TEST_DIR)/Makefile.common diff --git a/arm/Makefile.common b/arm/Makefile.common index c02dd906..e251f6a8 100644 --- a/arm/Makefile.common +++ b/arm/Makefile.common @@ -4,14 +4,14 @@ # Authors: Andrew Jones # -tests-common = $(TEST_DIR)/selftest.flat -tests-common += $(TEST_DIR)/spinlock-test.flat -tests-common += $(TEST_DIR)/pci-test.flat -tests-common += $(TEST_DIR)/pmu.flat -tests-common += $(TEST_DIR)/gic.flat -tests-common += $(TEST_DIR)/psci.flat -tests-common += $(TEST_DIR)/sieve.flat -tests-common += $(TEST_DIR)/pl031.flat +tests-common = $(TEST_DIR)/selftest.$(exe) +tests-common += $(TEST_DIR)/spinlock-test.$(exe) +tests-common += $(TEST_DIR)/pci-test.$(exe) +tests-common += $(TEST_DIR)/pmu.$(exe) +tests-common += $(TEST_DIR)/gic.$(exe) +tests-common += $(TEST_DIR)/psci.$(exe) +tests-common += $(TEST_DIR)/sieve.$(exe) +tests-common += $(TEST_DIR)/pl031.$(exe) tests-all = $(tests-common) $(tests) all: directories $(tests-all) @@ -54,6 +54,9 @@ cflatobjs += lib/arm/smp.o cflatobjs += lib/arm/delay.o cflatobjs += lib/arm/gic.o lib/arm/gic-v2.o lib/arm/gic-v3.o cflatobjs += lib/arm/timer.o +ifeq ($(CONFIG_EFI),y) +cflatobjs += lib/efi.o +endif ifeq ($(CONFIG_EFI),y) cflatobjs += lib/acpi.o @@ -65,6 +68,25 @@ libeabi = lib/arm/libeabi.a eabiobjs = lib/arm/eabi_compat.o FLATLIBS = $(libcflat) $(LIBFDT_archive) $(libeabi) + +ifeq ($(CONFIG_EFI),y) +%.so: EFI_LDFLAGS += -defsym=EFI_SUBSYSTEM=0xa --no-undefined +%.so: %.o $(FLATLIBS) $(SRCDIR)/arm/efi/elf_aarch64_efi.lds $(cstart.o) + $(CC) $(CFLAGS) -c -o $(@:.so=.aux.o) $(SRCDIR)/lib/auxinfo.c \ + -DPROGNAME=\"$(@:.so=.efi)\" -DAUXFLAGS=$(AUXFLAGS) + $(LD) $(EFI_LDFLAGS) -o $@ -T $(SRCDIR)/arm/efi/elf_aarch64_efi.lds \ + $(filter %.o, $^) $(FLATLIBS) $(@:.so=.aux.o) \ + $(EFI_LIBS) + $(RM) $(@:.so=.aux.o) + +%.efi: %.so + $(call arch_elf_check, $^) + $(OBJCOPY) \ + -j .text -j .sdata -j .data -j .dynamic -j .dynsym \ + -j .rel -j .rela -j .rel.* -j .rela.* -j .rel* -j .rela* \ + -j .reloc \ + -O binary $^ $@ +else %.elf: LDFLAGS = -nostdlib $(arch_LDFLAGS) %.elf: %.o $(FLATLIBS) $(SRCDIR)/arm/flat.lds $(cstart.o) $(CC) $(CFLAGS) -c -o $(@:.elf=.aux.o) $(SRCDIR)/lib/auxinfo.c \ @@ -78,13 +100,14 @@ FLATLIBS = $(libcflat) $(LIBFDT_archive) $(libeabi) $(call arch_elf_check, $^) $(OBJCOPY) -O binary $^ $@ @chmod a-x $@ +endif $(libeabi): $(eabiobjs) $(AR) rcs $@ $^ arm_clean: asm_offsets_clean - $(RM) $(TEST_DIR)/*.{o,flat,elf} $(libeabi) $(eabiobjs) \ - $(TEST_DIR)/.*.d lib/arm/.*.d + $(RM) $(TEST_DIR)/*.{o,flat,elf,so,efi} $(libeabi) $(eabiobjs) \ + $(TEST_DIR)/.*.d $(TEST_DIR)/efi/.*.d lib/arm/.*.d generated-files = $(asm-offsets) -$(tests-all:.flat=.o) $(cstart.o) $(cflatobjs): $(generated-files) +$(tests-all:.$(exe)=.o) $(cstart.o) $(cflatobjs): $(generated-files) diff --git a/configure b/configure index c36fd290..7806dab0 100755 --- a/configure +++ b/configure @@ -208,14 +208,19 @@ else fi fi -if [ "$efi" ] && [ "$arch" != "x86_64" ]; then +if [ "$efi" ] && [ "$arch" != "x86_64" ] && [ "$arch" != "arm64" ]; then echo "--[enable|disable]-efi is not supported for $arch" usage fi if [ -z "$page_size" ]; then - [ "$arch" = "arm64" ] && page_size="65536" - [ "$arch" = "arm" ] && page_size="4096" + if [ "$efi" = 'y' ] && [ "$arch" = "arm64" ]; then + page_size="4096" + elif [ "$arch" = "arm64" ]; then + page_size="65536" + elif [ "$arch" = "arm" ]; then + page_size="4096" + fi else if [ "$arch" != "arm64" ]; then echo "--page-size is not supported for $arch" @@ -230,6 +235,10 @@ else echo "arm64 doesn't support page size of $page_size" usage fi + if [ "$efi" = 'y' ] && [ "$page_size" != "4096" ]; then + echo "efi must use 4K pages" + exit 1 + fi fi [ -z "$processor" ] && processor="$arch" From patchwork Mon Feb 13 10:17:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138179 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B85CC636CC for ; Mon, 13 Feb 2023 10:19:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229810AbjBMKTC (ORCPT ); Mon, 13 Feb 2023 05:19:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54558 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230490AbjBMKS7 (ORCPT ); Mon, 13 Feb 2023 05:18:59 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id B0E0410262 for ; Mon, 13 Feb 2023 02:18:40 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 7E6561FC4; Mon, 13 Feb 2023 02:19:20 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 0AC643F703; Mon, 13 Feb 2023 02:18:36 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: Alexandru Elisei , pbonzini@redhat.com, ricarkol@google.com Subject: [PATCH v4 29/30] lib: arm: Print test exit status Date: Mon, 13 Feb 2023 10:17:58 +0000 Message-Id: <20230213101759.2577077-30-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org From: Alexandru Elisei The arm tests can be run under kvmtool, which doesn't emulate a chr-testdev device. Print the test exit status to make it possible for the runner scripts to pick it up when they have support for it. Signed-off-by: Alexandru Elisei Signed-off-by: Nikos Nikoleris Reviewed-by: Andrew Jones --- lib/arm/io.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/lib/arm/io.c b/lib/arm/io.c index 19f93490..c15e57c4 100644 --- a/lib/arm/io.c +++ b/lib/arm/io.c @@ -149,6 +149,13 @@ extern void halt(int code); void exit(int code) { + /* + * Print the test return code in the following format which is + * consistent with powerpc and s390x. The runner can pick it + * up when chr-testdev is not present. + */ + printf("\nEXIT: STATUS=%d\n", ((code) << 1) | 1); + chr_testdev_exit(code); psci_system_off(); halt(code); From patchwork Mon Feb 13 10:17:59 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nikos Nikoleris X-Patchwork-Id: 13138185 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0898EC636CC for ; Mon, 13 Feb 2023 10:20:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231142AbjBMKUE (ORCPT ); Mon, 13 Feb 2023 05:20:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55828 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231244AbjBMKT7 (ORCPT ); Mon, 13 Feb 2023 05:19:59 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 0F26B17CCB for ; Mon, 13 Feb 2023 02:19:35 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 94EE21FC7; Mon, 13 Feb 2023 02:19:21 -0800 (PST) Received: from godel.lab.cambridge.arm.com (godel.lab.cambridge.arm.com [10.7.66.42]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 20EBE3F703; Mon, 13 Feb 2023 02:18:38 -0800 (PST) From: Nikos Nikoleris To: kvm@vger.kernel.org, kvmarm@lists.linux.dev, andrew.jones@linux.dev Cc: pbonzini@redhat.com, alexandru.elisei@arm.com, ricarkol@google.com Subject: [PATCH v4 30/30] arm64: Add an efi/run script Date: Mon, 13 Feb 2023 10:17:59 +0000 Message-Id: <20230213101759.2577077-31-nikos.nikoleris@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230213101759.2577077-1-nikos.nikoleris@arm.com> References: <20230213101759.2577077-1-nikos.nikoleris@arm.com> MIME-Version: 1.0 X-ARM-No-Footer: FoSSMail Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This change adds a efi/run script inspired by the one in x86. This script will setup a folder with the test compiled as an EFI app and a startup.nsh script. The script launches QEMU providing an image with EDKII and the path to the folder with the test which is executed automatically. For example: $> ./arm/efi/run ./arm/selftest.efi setup smp=2 mem=256 Signed-off-by: Nikos Nikoleris Reviewed-by: Ricardo Koller --- arm/Makefile.common | 1 + arm/dummy.c | 12 +++++++++ arm/efi/run | 61 ++++++++++++++++++++++++++++++++++++++++++++ arm/run | 14 +++++++--- scripts/runtime.bash | 13 +++++++--- 5 files changed, 94 insertions(+), 7 deletions(-) create mode 100644 arm/dummy.c create mode 100755 arm/efi/run diff --git a/arm/Makefile.common b/arm/Makefile.common index e251f6a8..90a6ff3a 100644 --- a/arm/Makefile.common +++ b/arm/Makefile.common @@ -12,6 +12,7 @@ tests-common += $(TEST_DIR)/gic.$(exe) tests-common += $(TEST_DIR)/psci.$(exe) tests-common += $(TEST_DIR)/sieve.$(exe) tests-common += $(TEST_DIR)/pl031.$(exe) +tests-common += $(TEST_DIR)/dummy.$(exe) tests-all = $(tests-common) $(tests) all: directories $(tests-all) diff --git a/arm/dummy.c b/arm/dummy.c new file mode 100644 index 00000000..7033bb7c --- /dev/null +++ b/arm/dummy.c @@ -0,0 +1,12 @@ +#include "libcflat.h" + +int main(int argc, char **argv) +{ + /* + * scripts/runtime.bash uses this test as a canary to determine if the + * basic setup is functional. Print a magic string to let runtime.bash + * know that all is well. + */ + printf("Dummy Hello World!"); + return 0; +} diff --git a/arm/efi/run b/arm/efi/run new file mode 100755 index 00000000..dfff717a --- /dev/null +++ b/arm/efi/run @@ -0,0 +1,61 @@ +#!/bin/bash + +set -e + +if [ $# -eq 0 ]; then + echo "Usage $0 TEST_CASE [QEMU_ARGS]" + exit 2 +fi + +if [ ! -f config.mak ]; then + echo "run './configure --enable-efi && make' first. See ./configure -h" + exit 2 +fi +source config.mak +source scripts/arch-run.bash +source scripts/common.bash + +: "${EFI_SRC:=$(realpath "$(dirname "$0")/../")}" +: "${EFI_UEFI:=/usr/share/qemu-efi-aarch64/QEMU_EFI.fd}" +: "${EFI_TEST:=efi-tests}" +: "${EFI_CASE:=$(basename $1 .efi)}" + +if [ ! -f "$EFI_UEFI" ]; then + echo "UEFI firmware not found: $EFI_UEFI" + echo "Please install the UEFI firmware to this path" + echo "Or specify the correct path with the env variable EFI_UEFI" + exit 2 +fi + +# Remove the TEST_CASE from $@ +shift 1 + +# Fish out the arguments for the test, they should be the next string +# after the "-append" option +qemu_args=() +cmd_args=() +while (( "$#" )); do + if [ "$1" = "-append" ]; then + cmd_args=$2 + shift 2 + else + qemu_args+=("$1") + shift 1 + fi +done + +if [ "$EFI_CASE" = "_NO_FILE_4Uhere_" ]; then + EFI_CASE=dummy +fi + +: "${EFI_CASE_DIR:="$EFI_TEST/$EFI_CASE"}" +mkdir -p "$EFI_CASE_DIR" + +cp "$EFI_SRC/$EFI_CASE.efi" "$EFI_TEST/$EFI_CASE/" +echo "@echo -off" > "$EFI_TEST/$EFI_CASE/startup.nsh" +echo "$EFI_CASE.efi" "${cmd_args[@]}" >> "$EFI_TEST/$EFI_CASE/startup.nsh" + +EFI_RUN=y $TEST_DIR/run \ + -bios "$EFI_UEFI" \ + -drive file.dir="$EFI_TEST/$EFI_CASE/",file.driver=vvfat,file.rw=on,format=raw,if=virtio \ + "${qemu_args[@]}" diff --git a/arm/run b/arm/run index 12848912..62f845b3 100755 --- a/arm/run +++ b/arm/run @@ -65,8 +65,10 @@ if $qemu $M -chardev testdev,id=id -initrd . 2>&1 \ exit 2 fi -chr_testdev='-device virtio-serial-device' -chr_testdev+=' -device virtconsole,chardev=ctd -chardev testdev,id=ctd' +if [ "$EFI_RUN" != "y" ]; then + chr_testdev='-device virtio-serial-device' + chr_testdev+=' -device virtconsole,chardev=ctd -chardev testdev,id=ctd' +fi pci_testdev= if $qemu $M -device '?' 2>&1 | grep pci-testdev > /dev/null; then @@ -75,7 +77,11 @@ fi A="-accel $ACCEL" command="$qemu -nodefaults $M $A -cpu $processor $chr_testdev $pci_testdev" -command+=" -display none -serial stdio -kernel" +command+=" -display none -serial stdio" command="$(migration_cmd) $(timeout_cmd) $command" -run_qemu $command "$@" +if [ "$EFI_RUN" = "y" ]; then + ENVIRON_DEFAULT=n run_qemu_status $command "$@" +else + run_qemu $command -kernel "$@" +fi diff --git a/scripts/runtime.bash b/scripts/runtime.bash index f8794e9a..13eade26 100644 --- a/scripts/runtime.bash +++ b/scripts/runtime.bash @@ -130,11 +130,18 @@ function run() done fi - last_line=$(premature_failure > >(tail -1)) && { + log=$(premature_failure) && { skip=true - if [ "${CONFIG_EFI}" == "y" ] && [[ "${last_line}" =~ "Dummy Hello World!" ]]; then - skip=false + if [ "${CONFIG_EFI}" == "y" ]; then + if [ "$ARCH" == "x86_64" ] && + [[ "$(tail -1 <<<"$log")" =~ "Dummy Hello World!" ]]; then + skip=false + elif [ "$ARCH" == "arm64" ] && + [[ "$(tail -2 <<<"$log" | head -1)" =~ "Dummy Hello World!" ]]; then + skip=false + fi fi + if [ ${skip} == true ]; then print_result "SKIP" $testname "" "$last_line" return 77