From patchwork Fri Apr 30 18:40:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Mateus Martins Araujo e Castro X-Patchwork-Id: 12234093 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF60FC433B4 for ; Fri, 30 Apr 2021 18:49:52 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id EF35461423 for ; Fri, 30 Apr 2021 18:49:51 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EF35461423 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=eldorado.org.br Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:56032 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lcYD0-0002l3-7I for qemu-devel@archiver.kernel.org; Fri, 30 Apr 2021 14:49:50 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57150) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lcY4i-0006D5-Hg; Fri, 30 Apr 2021 14:41:16 -0400 Received: from [201.28.113.2] (port=4684 helo=outlook.eldorado.org.br) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lcY4f-0002GC-TA; Fri, 30 Apr 2021 14:41:16 -0400 Received: from power9a ([10.10.71.235]) by outlook.eldorado.org.br with Microsoft SMTPSVC(8.5.9600.16384); Fri, 30 Apr 2021 15:41:08 -0300 Received: from eldorado.org.br (unknown [10.10.71.235]) by power9a (Postfix) with ESMTP id D0A3A8013C2; Fri, 30 Apr 2021 15:41:08 -0300 (-03) From: "Lucas Mateus Castro (alqotel)" To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Subject: [RFC PATCH v2 1/2] target/ppc: Moved functions out of mmu-hash64 Date: Fri, 30 Apr 2021 15:40:46 -0300 Message-Id: <20210430184047.81653-2-lucas.araujo@eldorado.org.br> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210430184047.81653-1-lucas.araujo@eldorado.org.br> References: <20210430184047.81653-1-lucas.araujo@eldorado.org.br> X-OriginalArrivalTime: 30 Apr 2021 18:41:09.0006 (UTC) FILETIME=[62D17AE0:01D73DF0] X-Host-Lookup-Failed: Reverse DNS lookup failed for 201.28.113.2 (failed) Received-SPF: pass client-ip=201.28.113.2; envelope-from=lucas.araujo@eldorado.org.br; helo=outlook.eldorado.org.br X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: bruno.larsen@eldorado.org.br, "Lucas Mateus Castro \(alqotel\)" , farosas@linux.ibm.com, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" The functions ppc_store_lpcr, ppc_hash64_filter_pagesizes and ppc_hash64_unmap_hptes have been moved to mmu-misc.h since they are not needed in a !TCG context and mmu-hash64 should not be compiled in such situation. ppc_store_lpcr and ppc_hash64_filter_pagesizes are used by multiple functions, while ppc_hash64_unmap_hptes is used by rehash_hpt (in spapr_hcall.c). Also I've put the functions in mmu-misc as I am unsure in which file this functions should go, so I just created a new one for now, any suggestion which file to put them (considering it's a file that must be compiled in a !TCG situation)? Signed-off-by: Lucas Mateus Castro (alqotel) --- hw/ppc/spapr.c | 1 + hw/ppc/spapr_caps.c | 1 + hw/ppc/spapr_cpu_core.c | 1 + hw/ppc/spapr_hcall.c | 1 + hw/ppc/spapr_rtas.c | 1 + target/ppc/meson.build | 1 + target/ppc/mmu-hash64.c | 81 +------------------------------------- target/ppc/mmu-hash64.h | 6 --- target/ppc/mmu-misc.c | 86 +++++++++++++++++++++++++++++++++++++++++ target/ppc/mmu-misc.h | 22 +++++++++++ 10 files changed, 115 insertions(+), 86 deletions(-) create mode 100644 target/ppc/mmu-misc.c create mode 100644 target/ppc/mmu-misc.h diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c index e4be00b732..61f8f150c2 100644 --- a/hw/ppc/spapr.c +++ b/hw/ppc/spapr.c @@ -53,6 +53,7 @@ #include "mmu-book3s-v3.h" #include "cpu-models.h" #include "hw/core/cpu.h" +#include "mmu-misc.h" #include "hw/boards.h" #include "hw/ppc/ppc.h" diff --git a/hw/ppc/spapr_caps.c b/hw/ppc/spapr_caps.c index 9ea7ddd1e9..22352ff018 100644 --- a/hw/ppc/spapr_caps.c +++ b/hw/ppc/spapr_caps.c @@ -34,6 +34,7 @@ #include "kvm_ppc.h" #include "migration/vmstate.h" #include "sysemu/tcg.h" +#include "mmu-misc.h" #include "hw/ppc/spapr.h" diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c index 4f316a6f9d..f4d93999e5 100644 --- a/hw/ppc/spapr_cpu_core.c +++ b/hw/ppc/spapr_cpu_core.c @@ -24,6 +24,7 @@ #include "sysemu/reset.h" #include "sysemu/hw_accel.h" #include "qemu/error-report.h" +#include "mmu-misc.h" static void spapr_reset_vcpu(PowerPCCPU *cpu) { diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index 7b5cd3553c..4b0ba69841 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -13,6 +13,7 @@ #include "hw/ppc/spapr.h" #include "hw/ppc/spapr_cpu_core.h" #include "mmu-hash64.h" +#include "mmu-misc.h" #include "cpu-models.h" #include "trace.h" #include "kvm_ppc.h" diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c index 8a79f9c628..8935b75d1c 100644 --- a/hw/ppc/spapr_rtas.c +++ b/hw/ppc/spapr_rtas.c @@ -35,6 +35,7 @@ #include "sysemu/hw_accel.h" #include "sysemu/runstate.h" #include "kvm_ppc.h" +#include "mmu-misc.h" #include "hw/ppc/spapr.h" #include "hw/ppc/spapr_vio.h" diff --git a/target/ppc/meson.build b/target/ppc/meson.build index bbfef90e08..7a97648803 100644 --- a/target/ppc/meson.build +++ b/target/ppc/meson.build @@ -31,6 +31,7 @@ ppc_softmmu_ss.add(when: 'TARGET_PPC64', if_true: files( 'mmu-book3s-v3.c', 'mmu-hash64.c', 'mmu-radix64.c', + 'mmu-misc.c', )) target_arch += {'ppc': ppc_ss} diff --git a/target/ppc/mmu-hash64.c b/target/ppc/mmu-hash64.c index 0fabc10302..919a3e9f51 100644 --- a/target/ppc/mmu-hash64.c +++ b/target/ppc/mmu-hash64.c @@ -30,6 +30,7 @@ #include "exec/log.h" #include "hw/hw.h" #include "mmu-book3s-v3.h" +#include "mmu-misc.h" /* #define DEBUG_SLB */ @@ -499,20 +500,6 @@ const ppc_hash_pte64_t *ppc_hash64_map_hptes(PowerPCCPU *cpu, return hptes; } -void ppc_hash64_unmap_hptes(PowerPCCPU *cpu, const ppc_hash_pte64_t *hptes, - hwaddr ptex, int n) -{ - if (cpu->vhyp) { - PPCVirtualHypervisorClass *vhc = - PPC_VIRTUAL_HYPERVISOR_GET_CLASS(cpu->vhyp); - vhc->unmap_hptes(cpu->vhyp, hptes, ptex, n); - return; - } - - address_space_unmap(CPU(cpu)->as, (void *)hptes, n * HASH_PTE_SIZE_64, - false, n * HASH_PTE_SIZE_64); -} - static unsigned hpte_page_shift(const PPCHash64SegmentPageSizes *sps, uint64_t pte0, uint64_t pte1) { @@ -1119,14 +1106,6 @@ void ppc_hash64_tlb_flush_hpte(PowerPCCPU *cpu, target_ulong ptex, cpu->env.tlb_need_flush = TLB_NEED_GLOBAL_FLUSH | TLB_NEED_LOCAL_FLUSH; } -void ppc_store_lpcr(PowerPCCPU *cpu, target_ulong val) -{ - PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu); - CPUPPCState *env = &cpu->env; - - env->spr[SPR_LPCR] = val & pcc->lpcr_mask; -} - void helper_store_lpcr(CPUPPCState *env, target_ulong val) { PowerPCCPU *cpu = env_archcpu(env); @@ -1197,61 +1176,3 @@ const PPCHash64Options ppc_hash64_opts_POWER7 = { } }; -void ppc_hash64_filter_pagesizes(PowerPCCPU *cpu, - bool (*cb)(void *, uint32_t, uint32_t), - void *opaque) -{ - PPCHash64Options *opts = cpu->hash64_opts; - int i; - int n = 0; - bool ci_largepage = false; - - assert(opts); - - n = 0; - for (i = 0; i < ARRAY_SIZE(opts->sps); i++) { - PPCHash64SegmentPageSizes *sps = &opts->sps[i]; - int j; - int m = 0; - - assert(n <= i); - - if (!sps->page_shift) { - break; - } - - for (j = 0; j < ARRAY_SIZE(sps->enc); j++) { - PPCHash64PageSize *ps = &sps->enc[j]; - - assert(m <= j); - if (!ps->page_shift) { - break; - } - - if (cb(opaque, sps->page_shift, ps->page_shift)) { - if (ps->page_shift >= 16) { - ci_largepage = true; - } - sps->enc[m++] = *ps; - } - } - - /* Clear rest of the row */ - for (j = m; j < ARRAY_SIZE(sps->enc); j++) { - memset(&sps->enc[j], 0, sizeof(sps->enc[j])); - } - - if (m) { - n++; - } - } - - /* Clear the rest of the table */ - for (i = n; i < ARRAY_SIZE(opts->sps); i++) { - memset(&opts->sps[i], 0, sizeof(opts->sps[i])); - } - - if (!ci_largepage) { - opts->flags &= ~PPC_HASH64_CI_LARGEPAGE; - } -} diff --git a/target/ppc/mmu-hash64.h b/target/ppc/mmu-hash64.h index 87729d48b3..562602b466 100644 --- a/target/ppc/mmu-hash64.h +++ b/target/ppc/mmu-hash64.h @@ -15,12 +15,8 @@ void ppc_hash64_tlb_flush_hpte(PowerPCCPU *cpu, target_ulong pte0, target_ulong pte1); unsigned ppc_hash64_hpte_page_shift_noslb(PowerPCCPU *cpu, uint64_t pte0, uint64_t pte1); -void ppc_store_lpcr(PowerPCCPU *cpu, target_ulong val); void ppc_hash64_init(PowerPCCPU *cpu); void ppc_hash64_finalize(PowerPCCPU *cpu); -void ppc_hash64_filter_pagesizes(PowerPCCPU *cpu, - bool (*cb)(void *, uint32_t, uint32_t), - void *opaque); #endif /* @@ -112,8 +108,6 @@ struct ppc_hash_pte64 { const ppc_hash_pte64_t *ppc_hash64_map_hptes(PowerPCCPU *cpu, hwaddr ptex, int n); -void ppc_hash64_unmap_hptes(PowerPCCPU *cpu, const ppc_hash_pte64_t *hptes, - hwaddr ptex, int n); static inline uint64_t ppc_hash64_hpte0(PowerPCCPU *cpu, const ppc_hash_pte64_t *hptes, int i) diff --git a/target/ppc/mmu-misc.c b/target/ppc/mmu-misc.c new file mode 100644 index 0000000000..8abda66547 --- /dev/null +++ b/target/ppc/mmu-misc.c @@ -0,0 +1,86 @@ +#include "qemu/osdep.h" +#include "cpu.h" +#include "mmu-hash64.h" +#include "fpu/softfloat-helpers.h" +#include "mmu-misc.h" + +void ppc_store_lpcr(PowerPCCPU *cpu, target_ulong val) +{ + PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu); + CPUPPCState *env = &cpu->env; + + env->spr[SPR_LPCR] = val & pcc->lpcr_mask; +} + +void ppc_hash64_filter_pagesizes(PowerPCCPU *cpu, + bool (*cb)(void *, uint32_t, uint32_t), + void *opaque) +{ + PPCHash64Options *opts = cpu->hash64_opts; + int i; + int n = 0; + bool ci_largepage = false; + + assert(opts); + + n = 0; + for (i = 0; i < ARRAY_SIZE(opts->sps); i++) { + PPCHash64SegmentPageSizes *sps = &opts->sps[i]; + int j; + int m = 0; + + assert(n <= i); + + if (!sps->page_shift) { + break; + } + + for (j = 0; j < ARRAY_SIZE(sps->enc); j++) { + PPCHash64PageSize *ps = &sps->enc[j]; + + assert(m <= j); + if (!ps->page_shift) { + break; + } + + if (cb(opaque, sps->page_shift, ps->page_shift)) { + if (ps->page_shift >= 16) { + ci_largepage = true; + } + sps->enc[m++] = *ps; + } + } + + /* Clear rest of the row */ + for (j = m; j < ARRAY_SIZE(sps->enc); j++) { + memset(&sps->enc[j], 0, sizeof(sps->enc[j])); + } + + if (m) { + n++; + } + } + + /* Clear the rest of the table */ + for (i = n; i < ARRAY_SIZE(opts->sps); i++) { + memset(&opts->sps[i], 0, sizeof(opts->sps[i])); + } + + if (!ci_largepage) { + opts->flags &= ~PPC_HASH64_CI_LARGEPAGE; + } +} + +void ppc_hash64_unmap_hptes(PowerPCCPU *cpu, const ppc_hash_pte64_t *hptes, + hwaddr ptex, int n) +{ + if (cpu->vhyp) { + PPCVirtualHypervisorClass *vhc = + PPC_VIRTUAL_HYPERVISOR_GET_CLASS(cpu->vhyp); + vhc->unmap_hptes(cpu->vhyp, hptes, ptex, n); + return; + } + + address_space_unmap(CPU(cpu)->as, (void *)hptes, n * HASH_PTE_SIZE_64, + false, n * HASH_PTE_SIZE_64); +} diff --git a/target/ppc/mmu-misc.h b/target/ppc/mmu-misc.h new file mode 100644 index 0000000000..7be6bf7b44 --- /dev/null +++ b/target/ppc/mmu-misc.h @@ -0,0 +1,22 @@ +#ifndef MMU_MISC_H +#define MMU_MISC_H +#include "qemu/osdep.h" +#include "cpu.h" + +#ifndef CONFIG_USER_ONLY + +#ifdef TARGET_PPC64 + +void ppc_store_lpcr(PowerPCCPU *cpu, target_ulong val); +void ppc_hash64_filter_pagesizes(PowerPCCPU *cpu, + bool (*cb)(void *, uint32_t, uint32_t), + void *opaque); + +#endif + +void ppc_hash64_unmap_hptes(PowerPCCPU *cpu, const ppc_hash_pte64_t *hptes, + hwaddr ptex, int n); + +#endif + +#endif From patchwork Fri Apr 30 18:40:47 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lucas Mateus Martins Araujo e Castro X-Patchwork-Id: 12234091 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F0E22C433ED for ; Fri, 30 Apr 2021 18:44:34 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 6DCDA6146D for ; 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Fri, 30 Apr 2021 15:41:09 -0300 Received: from eldorado.org.br (unknown [10.10.71.235]) by power9a (Postfix) with ESMTP id D3B818013C2; Fri, 30 Apr 2021 15:41:09 -0300 (-03) From: "Lucas Mateus Castro (alqotel)" To: qemu-devel@nongnu.org, qemu-ppc@nongnu.org Subject: [RFC PATCH v2 2/2] hw/ppc: Moved TCG code to spapr_hcall_tcg Date: Fri, 30 Apr 2021 15:40:47 -0300 Message-Id: <20210430184047.81653-3-lucas.araujo@eldorado.org.br> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210430184047.81653-1-lucas.araujo@eldorado.org.br> References: <20210430184047.81653-1-lucas.araujo@eldorado.org.br> X-OriginalArrivalTime: 30 Apr 2021 18:41:10.0006 (UTC) FILETIME=[636A1160:01D73DF0] X-Host-Lookup-Failed: Reverse DNS lookup failed for 201.28.113.2 (failed) Received-SPF: pass client-ip=201.28.113.2; envelope-from=lucas.araujo@eldorado.org.br; helo=outlook.eldorado.org.br X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: bruno.larsen@eldorado.org.br, "Lucas Mateus Castro \(alqotel\)" , farosas@linux.ibm.com, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Moved h_enter, remove_hpte, h_remove, h_bulk_remove,h_protect and h_read to spapr_hcall_tcg.c, added h_tcg_only to be used in a !TCG environment in spapr_hcall.c and changed build options to only build spapr_hcall_tcg.c when CONFIG_TCG is enabled. Added the function h_tcg_only to be used for hypercalls that should be called only in TCG environment but have been called in a TCG-less one. Right now, a #ifndef is used to know if there is a need of a h_tcg_only function to be implemented and used as hypercalls, I initially thought of always having that option turned on and having spapr_hcall_tcg.c overwrite those hypercalls when TCG is enabled, but spapr_register_hypercalls checks if a hypercall already exists for that opcode so that wouldn't work, so if anyone has any suggestions I'm interested. Also spapr_hcall_tcg.c only has 2 duplicated functions (valid_ptex and is_ram_address), what is the advised way to deal with these duplications? Signed-off-by: Lucas Mateus Castro (alqotel) --- hw/ppc/meson.build | 3 + hw/ppc/spapr_hcall.c | 300 ++-------------------------------- hw/ppc/spapr_hcall_tcg.c | 343 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 363 insertions(+), 283 deletions(-) create mode 100644 hw/ppc/spapr_hcall_tcg.c diff --git a/hw/ppc/meson.build b/hw/ppc/meson.build index 218631c883..3c7f2f08b7 100644 --- a/hw/ppc/meson.build +++ b/hw/ppc/meson.build @@ -29,6 +29,9 @@ ppc_ss.add(when: 'CONFIG_PSERIES', if_true: files( 'spapr_numa.c', 'pef.c', )) +ppc_ss.add(when: ['CONFIG_PSERIES', 'CONFIG_TCG'], if_true: files( + 'spapr_hcall_tcg.c' +)) ppc_ss.add(when: 'CONFIG_SPAPR_RNG', if_true: files('spapr_rng.c')) ppc_ss.add(when: ['CONFIG_PSERIES', 'CONFIG_LINUX'], if_true: files( 'spapr_pci_vfio.c', diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c index 4b0ba69841..b37fbdc32e 100644 --- a/hw/ppc/spapr_hcall.c +++ b/hw/ppc/spapr_hcall.c @@ -22,6 +22,15 @@ #include "mmu-book3s-v3.h" #include "hw/mem/memory-device.h" +#ifndef CONFIG_TCG +static target_ulong h_tcg_only(PowerPCCPU *cpu, SpaprMachineState *spapr, + target_ulong opcode, target_ulong *args) +{ + g_assert_not_reached(); + return 0; +} +#endif /* !CONFIG_TCG */ + static bool has_spr(PowerPCCPU *cpu, int spr) { /* We can test whether the SPR is defined by checking for a valid name */ @@ -55,284 +64,6 @@ static bool is_ram_address(SpaprMachineState *spapr, hwaddr addr) return false; } -static target_ulong h_enter(PowerPCCPU *cpu, SpaprMachineState *spapr, - target_ulong opcode, target_ulong *args) -{ - target_ulong flags = args[0]; - target_ulong ptex = args[1]; - target_ulong pteh = args[2]; - target_ulong ptel = args[3]; - unsigned apshift; - target_ulong raddr; - target_ulong slot; - const ppc_hash_pte64_t *hptes; - - apshift = ppc_hash64_hpte_page_shift_noslb(cpu, pteh, ptel); - if (!apshift) { - /* Bad page size encoding */ - return H_PARAMETER; - } - - raddr = (ptel & HPTE64_R_RPN) & ~((1ULL << apshift) - 1); - - if (is_ram_address(spapr, raddr)) { - /* Regular RAM - should have WIMG=0010 */ - if ((ptel & HPTE64_R_WIMG) != HPTE64_R_M) { - return H_PARAMETER; - } - } else { - target_ulong wimg_flags; - /* Looks like an IO address */ - /* FIXME: What WIMG combinations could be sensible for IO? - * For now we allow WIMG=010x, but are there others? */ - /* FIXME: Should we check against registered IO addresses? */ - wimg_flags = (ptel & (HPTE64_R_W | HPTE64_R_I | HPTE64_R_M)); - - if (wimg_flags != HPTE64_R_I && - wimg_flags != (HPTE64_R_I | HPTE64_R_M)) { - return H_PARAMETER; - } - } - - pteh &= ~0x60ULL; - - if (!valid_ptex(cpu, ptex)) { - return H_PARAMETER; - } - - slot = ptex & 7ULL; - ptex = ptex & ~7ULL; - - if (likely((flags & H_EXACT) == 0)) { - hptes = ppc_hash64_map_hptes(cpu, ptex, HPTES_PER_GROUP); - for (slot = 0; slot < 8; slot++) { - if (!(ppc_hash64_hpte0(cpu, hptes, slot) & HPTE64_V_VALID)) { - break; - } - } - ppc_hash64_unmap_hptes(cpu, hptes, ptex, HPTES_PER_GROUP); - if (slot == 8) { - return H_PTEG_FULL; - } - } else { - hptes = ppc_hash64_map_hptes(cpu, ptex + slot, 1); - if (ppc_hash64_hpte0(cpu, hptes, 0) & HPTE64_V_VALID) { - ppc_hash64_unmap_hptes(cpu, hptes, ptex + slot, 1); - return H_PTEG_FULL; - } - ppc_hash64_unmap_hptes(cpu, hptes, ptex, 1); - } - - spapr_store_hpte(cpu, ptex + slot, pteh | HPTE64_V_HPTE_DIRTY, ptel); - - args[0] = ptex + slot; - return H_SUCCESS; -} - -typedef enum { - REMOVE_SUCCESS = 0, - REMOVE_NOT_FOUND = 1, - REMOVE_PARM = 2, - REMOVE_HW = 3, -} RemoveResult; - -static RemoveResult remove_hpte(PowerPCCPU *cpu - , target_ulong ptex, - target_ulong avpn, - target_ulong flags, - target_ulong *vp, target_ulong *rp) -{ - const ppc_hash_pte64_t *hptes; - target_ulong v, r; - - if (!valid_ptex(cpu, ptex)) { - return REMOVE_PARM; - } - - hptes = ppc_hash64_map_hptes(cpu, ptex, 1); - v = ppc_hash64_hpte0(cpu, hptes, 0); - r = ppc_hash64_hpte1(cpu, hptes, 0); - ppc_hash64_unmap_hptes(cpu, hptes, ptex, 1); - - if ((v & HPTE64_V_VALID) == 0 || - ((flags & H_AVPN) && (v & ~0x7fULL) != avpn) || - ((flags & H_ANDCOND) && (v & avpn) != 0)) { - return REMOVE_NOT_FOUND; - } - *vp = v; - *rp = r; - spapr_store_hpte(cpu, ptex, HPTE64_V_HPTE_DIRTY, 0); - ppc_hash64_tlb_flush_hpte(cpu, ptex, v, r); - return REMOVE_SUCCESS; -} - -static target_ulong h_remove(PowerPCCPU *cpu, SpaprMachineState *spapr, - target_ulong opcode, target_ulong *args) -{ - CPUPPCState *env = &cpu->env; - target_ulong flags = args[0]; - target_ulong ptex = args[1]; - target_ulong avpn = args[2]; - RemoveResult ret; - - ret = remove_hpte(cpu, ptex, avpn, flags, - &args[0], &args[1]); - - switch (ret) { - case REMOVE_SUCCESS: - check_tlb_flush(env, true); - return H_SUCCESS; - - case REMOVE_NOT_FOUND: - return H_NOT_FOUND; - - case REMOVE_PARM: - return H_PARAMETER; - - case REMOVE_HW: - return H_HARDWARE; - } - - g_assert_not_reached(); -} - -#define H_BULK_REMOVE_TYPE 0xc000000000000000ULL -#define H_BULK_REMOVE_REQUEST 0x4000000000000000ULL -#define H_BULK_REMOVE_RESPONSE 0x8000000000000000ULL -#define H_BULK_REMOVE_END 0xc000000000000000ULL -#define H_BULK_REMOVE_CODE 0x3000000000000000ULL -#define H_BULK_REMOVE_SUCCESS 0x0000000000000000ULL -#define H_BULK_REMOVE_NOT_FOUND 0x1000000000000000ULL -#define H_BULK_REMOVE_PARM 0x2000000000000000ULL -#define H_BULK_REMOVE_HW 0x3000000000000000ULL -#define H_BULK_REMOVE_RC 0x0c00000000000000ULL -#define H_BULK_REMOVE_FLAGS 0x0300000000000000ULL -#define H_BULK_REMOVE_ABSOLUTE 0x0000000000000000ULL -#define H_BULK_REMOVE_ANDCOND 0x0100000000000000ULL -#define H_BULK_REMOVE_AVPN 0x0200000000000000ULL -#define H_BULK_REMOVE_PTEX 0x00ffffffffffffffULL - -#define H_BULK_REMOVE_MAX_BATCH 4 - -static target_ulong h_bulk_remove(PowerPCCPU *cpu, SpaprMachineState *spapr, - target_ulong opcode, target_ulong *args) -{ - CPUPPCState *env = &cpu->env; - int i; - target_ulong rc = H_SUCCESS; - - for (i = 0; i < H_BULK_REMOVE_MAX_BATCH; i++) { - target_ulong *tsh = &args[i*2]; - target_ulong tsl = args[i*2 + 1]; - target_ulong v, r, ret; - - if ((*tsh & H_BULK_REMOVE_TYPE) == H_BULK_REMOVE_END) { - break; - } else if ((*tsh & H_BULK_REMOVE_TYPE) != H_BULK_REMOVE_REQUEST) { - return H_PARAMETER; - } - - *tsh &= H_BULK_REMOVE_PTEX | H_BULK_REMOVE_FLAGS; - *tsh |= H_BULK_REMOVE_RESPONSE; - - if ((*tsh & H_BULK_REMOVE_ANDCOND) && (*tsh & H_BULK_REMOVE_AVPN)) { - *tsh |= H_BULK_REMOVE_PARM; - return H_PARAMETER; - } - - ret = remove_hpte(cpu, *tsh & H_BULK_REMOVE_PTEX, tsl, - (*tsh & H_BULK_REMOVE_FLAGS) >> 26, - &v, &r); - - *tsh |= ret << 60; - - switch (ret) { - case REMOVE_SUCCESS: - *tsh |= (r & (HPTE64_R_C | HPTE64_R_R)) << 43; - break; - - case REMOVE_PARM: - rc = H_PARAMETER; - goto exit; - - case REMOVE_HW: - rc = H_HARDWARE; - goto exit; - } - } - exit: - check_tlb_flush(env, true); - - return rc; -} - -static target_ulong h_protect(PowerPCCPU *cpu, SpaprMachineState *spapr, - target_ulong opcode, target_ulong *args) -{ - CPUPPCState *env = &cpu->env; - target_ulong flags = args[0]; - target_ulong ptex = args[1]; - target_ulong avpn = args[2]; - const ppc_hash_pte64_t *hptes; - target_ulong v, r; - - if (!valid_ptex(cpu, ptex)) { - return H_PARAMETER; - } - - hptes = ppc_hash64_map_hptes(cpu, ptex, 1); - v = ppc_hash64_hpte0(cpu, hptes, 0); - r = ppc_hash64_hpte1(cpu, hptes, 0); - ppc_hash64_unmap_hptes(cpu, hptes, ptex, 1); - - if ((v & HPTE64_V_VALID) == 0 || - ((flags & H_AVPN) && (v & ~0x7fULL) != avpn)) { - return H_NOT_FOUND; - } - - r &= ~(HPTE64_R_PP0 | HPTE64_R_PP | HPTE64_R_N | - HPTE64_R_KEY_HI | HPTE64_R_KEY_LO); - r |= (flags << 55) & HPTE64_R_PP0; - r |= (flags << 48) & HPTE64_R_KEY_HI; - r |= flags & (HPTE64_R_PP | HPTE64_R_N | HPTE64_R_KEY_LO); - spapr_store_hpte(cpu, ptex, - (v & ~HPTE64_V_VALID) | HPTE64_V_HPTE_DIRTY, 0); - ppc_hash64_tlb_flush_hpte(cpu, ptex, v, r); - /* Flush the tlb */ - check_tlb_flush(env, true); - /* Don't need a memory barrier, due to qemu's global lock */ - spapr_store_hpte(cpu, ptex, v | HPTE64_V_HPTE_DIRTY, r); - return H_SUCCESS; -} - -static target_ulong h_read(PowerPCCPU *cpu, SpaprMachineState *spapr, - target_ulong opcode, target_ulong *args) -{ - target_ulong flags = args[0]; - target_ulong ptex = args[1]; - int i, ridx, n_entries = 1; - const ppc_hash_pte64_t *hptes; - - if (!valid_ptex(cpu, ptex)) { - return H_PARAMETER; - } - - if (flags & H_READ_4) { - /* Clear the two low order bits */ - ptex &= ~(3ULL); - n_entries = 4; - } - - hptes = ppc_hash64_map_hptes(cpu, ptex, n_entries); - for (i = 0, ridx = 0; i < n_entries; i++) { - args[ridx++] = ppc_hash64_hpte0(cpu, hptes, i); - args[ridx++] = ppc_hash64_hpte1(cpu, hptes, i); - } - ppc_hash64_unmap_hptes(cpu, hptes, ptex, n_entries); - - return H_SUCCESS; -} - struct SpaprPendingHpt { /* These fields are read-only after initialization */ int shift; @@ -2021,14 +1752,17 @@ target_ulong spapr_hypercall(PowerPCCPU *cpu, target_ulong opcode, static void hypercall_register_types(void) { + +#ifndef CONFIG_TCG /* hcall-pft */ - spapr_register_hypercall(H_ENTER, h_enter); - spapr_register_hypercall(H_REMOVE, h_remove); - spapr_register_hypercall(H_PROTECT, h_protect); - spapr_register_hypercall(H_READ, h_read); + spapr_register_hypercall(H_ENTER, h_tcg_only); + spapr_register_hypercall(H_REMOVE, h_tcg_only); + spapr_register_hypercall(H_PROTECT, h_tcg_only); + spapr_register_hypercall(H_READ, h_tcg_only); /* hcall-bulk */ - spapr_register_hypercall(H_BULK_REMOVE, h_bulk_remove); + spapr_register_hypercall(H_BULK_REMOVE, h_tcg_only); +#endif /* !CONFIG_TCG */ /* hcall-hpt-resize */ spapr_register_hypercall(H_RESIZE_HPT_PREPARE, h_resize_hpt_prepare); diff --git a/hw/ppc/spapr_hcall_tcg.c b/hw/ppc/spapr_hcall_tcg.c new file mode 100644 index 0000000000..92ff24c8dc --- /dev/null +++ b/hw/ppc/spapr_hcall_tcg.c @@ -0,0 +1,343 @@ +#include "qemu/osdep.h" +#include "qemu/cutils.h" +#include "qapi/error.h" +#include "sysemu/hw_accel.h" +#include "sysemu/runstate.h" +#include "qemu/log.h" +#include "qemu/main-loop.h" +#include "qemu/module.h" +#include "qemu/error-report.h" +#include "cpu.h" +#include "exec/exec-all.h" +#include "helper_regs.h" +#include "hw/ppc/spapr.h" +#include "hw/ppc/spapr_cpu_core.h" +#include "mmu-hash64.h" +#include "mmu-misc.h" +#include "cpu-models.h" +#include "trace.h" +#include "kvm_ppc.h" +#include "hw/ppc/fdt.h" +#include "hw/ppc/spapr_ovec.h" +#include "mmu-book3s-v3.h" +#include "hw/mem/memory-device.h" + +static inline bool valid_ptex(PowerPCCPU *cpu, target_ulong ptex) +{ + /* + * hash value/pteg group index is normalized by HPT mask + */ + if (((ptex & ~7ULL) / HPTES_PER_GROUP) & ~ppc_hash64_hpt_mask(cpu)) { + return false; + } + return true; +} + +static bool is_ram_address(SpaprMachineState *spapr, hwaddr addr) +{ + MachineState *machine = MACHINE(spapr); + DeviceMemoryState *dms = machine->device_memory; + + if (addr < machine->ram_size) { + return true; + } + if ((addr >= dms->base) + && ((addr - dms->base) < memory_region_size(&dms->mr))) { + return true; + } + + return false; +} + +static target_ulong h_enter(PowerPCCPU *cpu, SpaprMachineState *spapr, + target_ulong opcode, target_ulong *args) +{ + target_ulong flags = args[0]; + target_ulong ptex = args[1]; + target_ulong pteh = args[2]; + target_ulong ptel = args[3]; + unsigned apshift; + target_ulong raddr; + target_ulong slot; + const ppc_hash_pte64_t *hptes; + + apshift = ppc_hash64_hpte_page_shift_noslb(cpu, pteh, ptel); + if (!apshift) { + /* Bad page size encoding */ + return H_PARAMETER; + } + + raddr = (ptel & HPTE64_R_RPN) & ~((1ULL << apshift) - 1); + + if (is_ram_address(spapr, raddr)) { + /* Regular RAM - should have WIMG=0010 */ + if ((ptel & HPTE64_R_WIMG) != HPTE64_R_M) { + return H_PARAMETER; + } + } else { + target_ulong wimg_flags; + /* Looks like an IO address */ + /* FIXME: What WIMG combinations could be sensible for IO? + * For now we allow WIMG=010x, but are there others? */ + /* FIXME: Should we check against registered IO addresses? */ + wimg_flags = (ptel & (HPTE64_R_W | HPTE64_R_I | HPTE64_R_M)); + + if (wimg_flags != HPTE64_R_I && + wimg_flags != (HPTE64_R_I | HPTE64_R_M)) { + return H_PARAMETER; + } + } + + pteh &= ~0x60ULL; + + if (!valid_ptex(cpu, ptex)) { + return H_PARAMETER; + } + + slot = ptex & 7ULL; + ptex = ptex & ~7ULL; + + if (likely((flags & H_EXACT) == 0)) { + hptes = ppc_hash64_map_hptes(cpu, ptex, HPTES_PER_GROUP); + for (slot = 0; slot < 8; slot++) { + if (!(ppc_hash64_hpte0(cpu, hptes, slot) & HPTE64_V_VALID)) { + break; + } + } + ppc_hash64_unmap_hptes(cpu, hptes, ptex, HPTES_PER_GROUP); + if (slot == 8) { + return H_PTEG_FULL; + } + } else { + hptes = ppc_hash64_map_hptes(cpu, ptex + slot, 1); + if (ppc_hash64_hpte0(cpu, hptes, 0) & HPTE64_V_VALID) { + ppc_hash64_unmap_hptes(cpu, hptes, ptex + slot, 1); + return H_PTEG_FULL; + } + ppc_hash64_unmap_hptes(cpu, hptes, ptex, 1); + } + + spapr_store_hpte(cpu, ptex + slot, pteh | HPTE64_V_HPTE_DIRTY, ptel); + + args[0] = ptex + slot; + return H_SUCCESS; +} + +typedef enum { + REMOVE_SUCCESS = 0, + REMOVE_NOT_FOUND = 1, + REMOVE_PARM = 2, + REMOVE_HW = 3, +} RemoveResult; + +static RemoveResult remove_hpte(PowerPCCPU *cpu + , target_ulong ptex, + target_ulong avpn, + target_ulong flags, + target_ulong *vp, target_ulong *rp) +{ + const ppc_hash_pte64_t *hptes; + target_ulong v, r; + + if (!valid_ptex(cpu, ptex)) { + return REMOVE_PARM; + } + + hptes = ppc_hash64_map_hptes(cpu, ptex, 1); + v = ppc_hash64_hpte0(cpu, hptes, 0); + r = ppc_hash64_hpte1(cpu, hptes, 0); + ppc_hash64_unmap_hptes(cpu, hptes, ptex, 1); + + if ((v & HPTE64_V_VALID) == 0 || + ((flags & H_AVPN) && (v & ~0x7fULL) != avpn) || + ((flags & H_ANDCOND) && (v & avpn) != 0)) { + return REMOVE_NOT_FOUND; + } + *vp = v; + *rp = r; + spapr_store_hpte(cpu, ptex, HPTE64_V_HPTE_DIRTY, 0); + ppc_hash64_tlb_flush_hpte(cpu, ptex, v, r); + return REMOVE_SUCCESS; +} + +static target_ulong h_remove(PowerPCCPU *cpu, SpaprMachineState *spapr, + target_ulong opcode, target_ulong *args) +{ + CPUPPCState *env = &cpu->env; + target_ulong flags = args[0]; + target_ulong ptex = args[1]; + target_ulong avpn = args[2]; + RemoveResult ret; + + ret = remove_hpte(cpu, ptex, avpn, flags, + &args[0], &args[1]); + + switch (ret) { + case REMOVE_SUCCESS: + check_tlb_flush(env, true); + return H_SUCCESS; + + case REMOVE_NOT_FOUND: + return H_NOT_FOUND; + + case REMOVE_PARM: + return H_PARAMETER; + + case REMOVE_HW: + return H_HARDWARE; + } + + g_assert_not_reached(); +} + +#define H_BULK_REMOVE_TYPE 0xc000000000000000ULL +#define H_BULK_REMOVE_REQUEST 0x4000000000000000ULL +#define H_BULK_REMOVE_RESPONSE 0x8000000000000000ULL +#define H_BULK_REMOVE_END 0xc000000000000000ULL +#define H_BULK_REMOVE_CODE 0x3000000000000000ULL +#define H_BULK_REMOVE_SUCCESS 0x0000000000000000ULL +#define H_BULK_REMOVE_NOT_FOUND 0x1000000000000000ULL +#define H_BULK_REMOVE_PARM 0x2000000000000000ULL +#define H_BULK_REMOVE_HW 0x3000000000000000ULL +#define H_BULK_REMOVE_RC 0x0c00000000000000ULL +#define H_BULK_REMOVE_FLAGS 0x0300000000000000ULL +#define H_BULK_REMOVE_ABSOLUTE 0x0000000000000000ULL +#define H_BULK_REMOVE_ANDCOND 0x0100000000000000ULL +#define H_BULK_REMOVE_AVPN 0x0200000000000000ULL +#define H_BULK_REMOVE_PTEX 0x00ffffffffffffffULL + +#define H_BULK_REMOVE_MAX_BATCH 4 + +static target_ulong h_bulk_remove(PowerPCCPU *cpu, SpaprMachineState *spapr, + target_ulong opcode, target_ulong *args) +{ + CPUPPCState *env = &cpu->env; + int i; + target_ulong rc = H_SUCCESS; + + for (i = 0; i < H_BULK_REMOVE_MAX_BATCH; i++) { + target_ulong *tsh = &args[i*2]; + target_ulong tsl = args[i*2 + 1]; + target_ulong v, r, ret; + + if ((*tsh & H_BULK_REMOVE_TYPE) == H_BULK_REMOVE_END) { + break; + } else if ((*tsh & H_BULK_REMOVE_TYPE) != H_BULK_REMOVE_REQUEST) { + return H_PARAMETER; + } + + *tsh &= H_BULK_REMOVE_PTEX | H_BULK_REMOVE_FLAGS; + *tsh |= H_BULK_REMOVE_RESPONSE; + + if ((*tsh & H_BULK_REMOVE_ANDCOND) && (*tsh & H_BULK_REMOVE_AVPN)) { + *tsh |= H_BULK_REMOVE_PARM; + return H_PARAMETER; + } + + ret = remove_hpte(cpu, *tsh & H_BULK_REMOVE_PTEX, tsl, + (*tsh & H_BULK_REMOVE_FLAGS) >> 26, + &v, &r); + + *tsh |= ret << 60; + + switch (ret) { + case REMOVE_SUCCESS: + *tsh |= (r & (HPTE64_R_C | HPTE64_R_R)) << 43; + break; + + case REMOVE_PARM: + rc = H_PARAMETER; + goto exit; + + case REMOVE_HW: + rc = H_HARDWARE; + goto exit; + } + } + exit: + check_tlb_flush(env, true); + + return rc; +} + +static target_ulong h_protect(PowerPCCPU *cpu, SpaprMachineState *spapr, + target_ulong opcode, target_ulong *args) +{ + CPUPPCState *env = &cpu->env; + target_ulong flags = args[0]; + target_ulong ptex = args[1]; + target_ulong avpn = args[2]; + const ppc_hash_pte64_t *hptes; + target_ulong v, r; + + if (!valid_ptex(cpu, ptex)) { + return H_PARAMETER; + } + + hptes = ppc_hash64_map_hptes(cpu, ptex, 1); + v = ppc_hash64_hpte0(cpu, hptes, 0); + r = ppc_hash64_hpte1(cpu, hptes, 0); + ppc_hash64_unmap_hptes(cpu, hptes, ptex, 1); + + if ((v & HPTE64_V_VALID) == 0 || + ((flags & H_AVPN) && (v & ~0x7fULL) != avpn)) { + return H_NOT_FOUND; + } + + r &= ~(HPTE64_R_PP0 | HPTE64_R_PP | HPTE64_R_N | + HPTE64_R_KEY_HI | HPTE64_R_KEY_LO); + r |= (flags << 55) & HPTE64_R_PP0; + r |= (flags << 48) & HPTE64_R_KEY_HI; + r |= flags & (HPTE64_R_PP | HPTE64_R_N | HPTE64_R_KEY_LO); + spapr_store_hpte(cpu, ptex, + (v & ~HPTE64_V_VALID) | HPTE64_V_HPTE_DIRTY, 0); + ppc_hash64_tlb_flush_hpte(cpu, ptex, v, r); + /* Flush the tlb */ + check_tlb_flush(env, true); + /* Don't need a memory barrier, due to qemu's global lock */ + spapr_store_hpte(cpu, ptex, v | HPTE64_V_HPTE_DIRTY, r); + return H_SUCCESS; +} + +static target_ulong h_read(PowerPCCPU *cpu, SpaprMachineState *spapr, + target_ulong opcode, target_ulong *args) +{ + target_ulong flags = args[0]; + target_ulong ptex = args[1]; + int i, ridx, n_entries = 1; + const ppc_hash_pte64_t *hptes; + + if (!valid_ptex(cpu, ptex)) { + return H_PARAMETER; + } + + if (flags & H_READ_4) { + /* Clear the two low order bits */ + ptex &= ~(3ULL); + n_entries = 4; + } + + hptes = ppc_hash64_map_hptes(cpu, ptex, n_entries); + for (i = 0, ridx = 0; i < n_entries; i++) { + args[ridx++] = ppc_hash64_hpte0(cpu, hptes, i); + args[ridx++] = ppc_hash64_hpte1(cpu, hptes, i); + } + ppc_hash64_unmap_hptes(cpu, hptes, ptex, n_entries); + + return H_SUCCESS; +} + + +static void hypercall_register_types(void) +{ + /* hcall-pft */ + spapr_register_hypercall(H_ENTER, h_enter); + spapr_register_hypercall(H_REMOVE, h_remove); + spapr_register_hypercall(H_PROTECT, h_protect); + spapr_register_hypercall(H_READ, h_read); + + /* hcall-bulk */ + spapr_register_hypercall(H_BULK_REMOVE, h_bulk_remove); +} + +type_init(hypercall_register_types)