From patchwork Tue Jun 14 19:59:51 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Michael S. Tsirkin" X-Patchwork-Id: 9176857 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 623CF6021C for ; Tue, 14 Jun 2016 20:18:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 52BAC2793B for ; Tue, 14 Jun 2016 20:18:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 465E828236; Tue, 14 Jun 2016 20:18:17 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 6F83A2793B for ; Tue, 14 Jun 2016 20:18:16 +0000 (UTC) Received: from localhost ([::1]:37878 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bCumt-0007De-JV for patchwork-qemu-devel@patchwork.kernel.org; Tue, 14 Jun 2016 16:18:15 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60993) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bCuVC-0006CZ-Vg for qemu-devel@nongnu.org; Tue, 14 Jun 2016 16:00:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bCuV7-0001WZ-Um for qemu-devel@nongnu.org; Tue, 14 Jun 2016 15:59:59 -0400 Received: from mx1.redhat.com ([209.132.183.28]:55238) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bCuV7-0001Vv-LX for qemu-devel@nongnu.org; Tue, 14 Jun 2016 15:59:53 -0400 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 279DB80082; Tue, 14 Jun 2016 19:59:53 +0000 (UTC) Received: from redhat.com (unused [10.16.197.238] (may be forged)) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with SMTP id u5EJxqCC016224; Tue, 14 Jun 2016 15:59:52 -0400 Date: Tue, 14 Jun 2016 22:59:51 +0300 From: "Michael S. Tsirkin" To: qemu-devel@nongnu.org Message-ID: <20160614225951-mutt-send-email-mst@redhat.com> References: <1465934227-16558-1-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1465934227-16558-1-git-send-email-mst@redhat.com> X-Mutt-Fcc: =sent X-Scanned-By: MIMEDefang 2.68 on 10.5.11.24 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.28]); Tue, 14 Jun 2016 19:59:53 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL v2 14/32] acpi: Add IPMI table entries X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , Eduardo Habkost , Corey Minyard , Paolo Bonzini , Igor Mammedov , Richard Henderson Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP From: Corey Minyard Use the ACPI table construction tools to create an ACPI entry for IPMI. This adds a function called build_acpi_ipmi_devices to add an DSDT entry for IPMI if IPMI is compiled in and an IPMI device exists. It also adds a dummy function if IPMI is not compiled in. This conforms to section "C3-2 Locating IPMI System Interfaces in ACPI Name Space" in the IPMI 2.0 specification. Signed-off-by: Corey Minyard Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- include/hw/acpi/ipmi.h | 22 +++++++++++ hw/acpi/ipmi.c | 105 +++++++++++++++++++++++++++++++++++++++++++++++++ hw/acpi/noipmi.c | 14 +++++++ hw/i386/acpi-build.c | 12 ++++++ hw/acpi/Makefile.objs | 2 + 5 files changed, 155 insertions(+) create mode 100644 include/hw/acpi/ipmi.h create mode 100644 hw/acpi/ipmi.c create mode 100644 hw/acpi/noipmi.c diff --git a/include/hw/acpi/ipmi.h b/include/hw/acpi/ipmi.h new file mode 100644 index 0000000..ab2bb29 --- /dev/null +++ b/include/hw/acpi/ipmi.h @@ -0,0 +1,22 @@ +/* + * QEMU IPMI ACPI handling + * + * Copyright (c) 2015,2016 Corey Minyard + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ +#ifndef HW_ACPI_IPMI_H +#define HW_ACPI_IPMI_H + +#include "qemu/osdep.h" +#include "hw/acpi/aml-build.h" + +/* + * Add ACPI IPMI entries for all registered IPMI devices whose parent + * bus matches the given bus. The resource is the ACPI resource that + * contains the IPMI device, this is required for the I2C CRS. + */ +void build_acpi_ipmi_devices(Aml *table, BusState *bus); + +#endif /* HW_ACPI_IPMI_H */ diff --git a/hw/acpi/ipmi.c b/hw/acpi/ipmi.c new file mode 100644 index 0000000..7e74ce4 --- /dev/null +++ b/hw/acpi/ipmi.c @@ -0,0 +1,105 @@ +/* + * IPMI ACPI firmware handling + * + * Copyright (c) 2015,2016 Corey Minyard, MontaVista Software, LLC + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "qemu/osdep.h" +#include "hw/ipmi/ipmi.h" +#include "hw/acpi/aml-build.h" +#include "hw/acpi/acpi.h" +#include "hw/acpi/ipmi.h" + +static Aml *aml_ipmi_crs(IPMIFwInfo *info) +{ + Aml *crs = aml_resource_template(); + + /* + * The base address is fixed and cannot change. That may be different + * if someone does PCI, but we aren't there yet. + */ + switch (info->memspace) { + case IPMI_MEMSPACE_IO: + aml_append(crs, aml_io(AML_DECODE16, info->base_address, + info->base_address + info->register_length - 1, + info->register_spacing, info->register_length)); + break; + case IPMI_MEMSPACE_MEM32: + aml_append(crs, + aml_dword_memory(AML_POS_DECODE, + AML_MIN_FIXED, AML_MAX_FIXED, + AML_NON_CACHEABLE, AML_READ_WRITE, + 0xffffffff, + info->base_address, + info->base_address + info->register_length - 1, + info->register_spacing, info->register_length)); + break; + case IPMI_MEMSPACE_MEM64: + aml_append(crs, + aml_qword_memory(AML_POS_DECODE, + AML_MIN_FIXED, AML_MAX_FIXED, + AML_NON_CACHEABLE, AML_READ_WRITE, + 0xffffffffffffffffULL, + info->base_address, + info->base_address + info->register_length - 1, + info->register_spacing, info->register_length)); + break; + case IPMI_MEMSPACE_SMBUS: + aml_append(crs, aml_return(aml_int(info->base_address))); + break; + default: + abort(); + } + + if (info->interrupt_number) { + aml_append(crs, aml_irq_no_flags(info->interrupt_number)); + } + + return crs; +} + +static Aml *aml_ipmi_device(IPMIFwInfo *info) +{ + Aml *dev; + uint16_t version = ((info->ipmi_spec_major_revision << 8) + | (info->ipmi_spec_minor_revision << 4)); + + assert(info->ipmi_spec_minor_revision <= 15); + + dev = aml_device("MI%d", info->uuid); + aml_append(dev, aml_name_decl("_HID", aml_eisaid("IPI0001"))); + aml_append(dev, aml_name_decl("_STR", aml_string("ipmi_%s", + info->interface_name))); + aml_append(dev, aml_name_decl("_UID", aml_int(info->uuid))); + aml_append(dev, aml_name_decl("_CRS", aml_ipmi_crs(info))); + aml_append(dev, aml_name_decl("_IFT", aml_int(info->interface_type))); + aml_append(dev, aml_name_decl("_SRV", aml_int(version))); + + return dev; +} + +void build_acpi_ipmi_devices(Aml *scope, BusState *bus) +{ + + BusChild *kid; + + QTAILQ_FOREACH(kid, &bus->children, sibling) { + IPMIInterface *ii; + IPMIInterfaceClass *iic; + IPMIFwInfo info; + Object *obj = object_dynamic_cast(OBJECT(kid->child), + TYPE_IPMI_INTERFACE); + + if (!obj) { + continue; + } + + ii = IPMI_INTERFACE(obj); + iic = IPMI_INTERFACE_GET_CLASS(obj); + iic->get_fwinfo(ii, &info); + aml_append(scope, aml_ipmi_device(&info)); + } +} diff --git a/hw/acpi/noipmi.c b/hw/acpi/noipmi.c new file mode 100644 index 0000000..98b6dce --- /dev/null +++ b/hw/acpi/noipmi.c @@ -0,0 +1,14 @@ +/* + * IPMI ACPI firmware handling + * + * Copyright (c) 2015,2016 Corey Minyard, MontaVista Software, LLC + * + * This work is licensed under the terms of the GNU GPL, version 2 or later. + * See the COPYING file in the top-level directory. + */ + +#include "hw/acpi/ipmi.h" + +void build_acpi_ipmi_devices(Aml *table, BusState *bus) +{ +} diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 06d6204..676e40a 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -59,6 +59,8 @@ #include "qapi/qmp/qint.h" #include "qom/qom-qobject.h" +#include "hw/acpi/ipmi.h" + /* These are used to size the ACPI tables for -M pc-i440fx-1.7 and * -M pc-i440fx-2.0. Even if the actual amount of AML generated grows * a little bit, there should be plenty of free space since the DSDT @@ -1335,8 +1337,10 @@ static Aml *build_com_device_aml(uint8_t uid) static void build_isa_devices_aml(Aml *table) { ISADevice *fdc = pc_find_fdc0(); + bool ambiguous; Aml *scope = aml_scope("_SB.PCI0.ISA"); + Object *obj = object_resolve_path_type("", TYPE_ISA_BUS, &ambiguous); aml_append(scope, build_rtc_device_aml()); aml_append(scope, build_kbd_device_aml()); @@ -1348,6 +1352,14 @@ static void build_isa_devices_aml(Aml *table) aml_append(scope, build_com_device_aml(1)); aml_append(scope, build_com_device_aml(2)); + if (ambiguous) { + error_report("Multiple ISA busses, unable to define IPMI ACPI data"); + } else if (!obj) { + error_report("No ISA bus, unable to define IPMI ACPI data"); + } else { + build_acpi_ipmi_devices(scope, BUS(obj)); + } + aml_append(table, scope); } diff --git a/hw/acpi/Makefile.objs b/hw/acpi/Makefile.objs index 66bd727..3390593 100644 --- a/hw/acpi/Makefile.objs +++ b/hw/acpi/Makefile.objs @@ -6,3 +6,5 @@ obj-$(CONFIG_ACPI_NVDIMM) += nvdimm.o common-obj-$(CONFIG_ACPI) += acpi_interface.o common-obj-$(CONFIG_ACPI) += bios-linker-loader.o common-obj-$(CONFIG_ACPI) += aml-build.o +common-obj-$(call land,$(CONFIG_ACPI),$(CONFIG_IPMI)) += ipmi.o +common-obj-$(call land,$(CONFIG_SMBIOS),$(call lnot,$(CONFIG_IPMI))) += noipmi.o