From patchwork Tue Feb 23 16:05:58 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Igor Mammedov X-Patchwork-Id: 8394051 Return-Path: X-Original-To: patchwork-qemu-devel@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 99885C0554 for ; Tue, 23 Feb 2016 16:08:33 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0E3E7202F8 for ; Tue, 23 Feb 2016 16:08:28 +0000 (UTC) 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.kernel.org (Postfix) with ESMTPS id 165DD202E9 for ; Tue, 23 Feb 2016 16:08:27 +0000 (UTC) Received: from localhost ([::1]:58118 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aYFVi-0008NF-Ck for patchwork-qemu-devel@patchwork.kernel.org; Tue, 23 Feb 2016 11:08:26 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60668) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aYFTg-0004jv-IU for qemu-devel@nongnu.org; Tue, 23 Feb 2016 11:06:22 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aYFTe-0003Al-Dd for qemu-devel@nongnu.org; Tue, 23 Feb 2016 11:06:20 -0500 Received: from mx1.redhat.com ([209.132.183.28]:40629) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aYFTe-0003A4-66 for qemu-devel@nongnu.org; Tue, 23 Feb 2016 11:06:18 -0500 Received: from int-mx10.intmail.prod.int.phx2.redhat.com (int-mx10.intmail.prod.int.phx2.redhat.com [10.5.11.23]) by mx1.redhat.com (Postfix) with ESMTPS id DAAF591FE5; Tue, 23 Feb 2016 16:06:17 +0000 (UTC) Received: from dell-r430-03.lab.eng.brq.redhat.com (dell-r430-03.lab.eng.brq.redhat.com [10.34.112.60]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u1NG63qT019433; Tue, 23 Feb 2016 11:06:16 -0500 From: Igor Mammedov To: qemu-devel@nongnu.org Date: Tue, 23 Feb 2016 17:05:58 +0100 Message-Id: <1456243560-67516-7-git-send-email-imammedo@redhat.com> In-Reply-To: <1456243560-67516-1-git-send-email-imammedo@redhat.com> References: <1456243560-67516-1-git-send-email-imammedo@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.23 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 209.132.183.28 Cc: ehabkost@redhat.com, mst@redhat.com, marcel.apfelbaum@gmail.com, Paolo Bonzini , Igor Mammedov , Richard Henderson Subject: [Qemu-devel] [PATCH v3 6/8] pc: acpi: create Processor and Notify objects only for valid lapics X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP do not assume that all lapics in range 0..apic_id_limit are valid and do not create Processor and Notify objects for not possible lapics. Signed-off-by: Igor Mammedov Reviewed-by: Eduardo Habkost --- hw/i386/acpi-build.c | 40 +++++++++++++++++++++++++--------------- 1 file changed, 25 insertions(+), 15 deletions(-) diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index 0a90a54..4c3e8fc 100644 --- a/hw/i386/acpi-build.c +++ b/hw/i386/acpi-build.c @@ -966,7 +966,7 @@ static Aml *build_crs(PCIHostState *host, return crs; } -static void build_processor_devices(Aml *sb_scope, unsigned acpi_cpus, +static void build_processor_devices(Aml *sb_scope, MachineState *machine, AcpiCpuInfo *cpu, AcpiPmInfo *pm) { int i; @@ -976,11 +976,15 @@ static void build_processor_devices(Aml *sb_scope, unsigned acpi_cpus, Aml *field; Aml *ifctx; Aml *method; + PossibleCpusClass *psc = POSSIBLE_CPUS_GET_CLASS(machine); + CPUArchIdList *apic_ids = + psc->get_possible_cpus_list(POSSIBLE_CPUS(machine)); + PCMachineState *pcms = PC_MACHINE(machine); /* The current AML generator can cover the APIC ID range [0..255], * inclusive, for VCPU hotplug. */ QEMU_BUILD_BUG_ON(ACPI_CPU_HOTPLUG_ID_LIMIT > 256); - g_assert(acpi_cpus <= ACPI_CPU_HOTPLUG_ID_LIMIT); + g_assert(pcms->apic_id_limit <= ACPI_CPU_HOTPLUG_ID_LIMIT); /* create PCI0.PRES device and its _CRS to reserve CPU hotplug MMIO */ dev = aml_device("PCI0." stringify(CPU_HOTPLUG_RESOURCE_DEVICE)); @@ -1005,22 +1009,26 @@ static void build_processor_devices(Aml *sb_scope, unsigned acpi_cpus, aml_append(sb_scope, field); /* build Processor object for each processor */ - for (i = 0; i < acpi_cpus; i++) { - dev = aml_processor(i, 0, 0, "CP%.02X", i); + for (i = 0; i < apic_ids->len; i++) { + int apic_id = apic_ids->cpus[i].arch_id; + + assert(apic_id < ACPI_CPU_HOTPLUG_ID_LIMIT); + dev = aml_processor(apic_id, 0, 0, "CP%.02X", apic_id); method = aml_method("_MAT", 0, AML_NOTSERIALIZED); aml_append(method, - aml_return(aml_call1(CPU_MAT_METHOD, aml_int(i)))); + aml_return(aml_call1(CPU_MAT_METHOD, aml_int(apic_id)))); aml_append(dev, method); method = aml_method("_STA", 0, AML_NOTSERIALIZED); aml_append(method, - aml_return(aml_call1(CPU_STATUS_METHOD, aml_int(i)))); + aml_return(aml_call1(CPU_STATUS_METHOD, aml_int(apic_id)))); aml_append(dev, method); method = aml_method("_EJ0", 1, AML_NOTSERIALIZED); aml_append(method, - aml_return(aml_call2(CPU_EJECT_METHOD, aml_int(i), aml_arg(0))) + aml_return(aml_call2(CPU_EJECT_METHOD, aml_int(apic_id), + aml_arg(0))) ); aml_append(dev, method); @@ -1032,10 +1040,12 @@ static void build_processor_devices(Aml *sb_scope, unsigned acpi_cpus, */ /* Arg0 = Processor ID = APIC ID */ method = aml_method(AML_NOTIFY_METHOD, 2, AML_NOTSERIALIZED); - for (i = 0; i < acpi_cpus; i++) { - ifctx = aml_if(aml_equal(aml_arg(0), aml_int(i))); + for (i = 0; i < apic_ids->len; i++) { + int apic_id = apic_ids->cpus[i].arch_id; + + ifctx = aml_if(aml_equal(aml_arg(0), aml_int(apic_id))); aml_append(ifctx, - aml_notify(aml_name("CP%.02X", i), aml_arg(1)) + aml_notify(aml_name("CP%.02X", apic_id), aml_arg(1)) ); aml_append(method, ifctx); } @@ -1048,14 +1058,15 @@ static void build_processor_devices(Aml *sb_scope, unsigned acpi_cpus, * ith up to 255 elements. Windows guests up to win2k8 fail when * VarPackageOp is used. */ - pkg = acpi_cpus <= 255 ? aml_package(acpi_cpus) : - aml_varpackage(acpi_cpus); + pkg = pcms->apic_id_limit <= 255 ? aml_package(pcms->apic_id_limit) : + aml_varpackage(pcms->apic_id_limit); - for (i = 0; i < acpi_cpus; i++) { + for (i = 0; i < pcms->apic_id_limit; i++) { uint8_t b = test_bit(i, cpu->found_cpus) ? 0x01 : 0x00; aml_append(pkg, aml_int(b)); } aml_append(sb_scope, aml_name_decl(CPU_ON_BITMAP, pkg)); + g_free(apic_ids); } static void build_memory_devices(Aml *sb_scope, int nr_mem, @@ -1950,7 +1961,6 @@ build_dsdt(GArray *table_data, GArray *linker, Aml *dsdt, *sb_scope, *scope, *dev, *method, *field, *pkg, *crs; GPtrArray *mem_ranges = g_ptr_array_new_with_free_func(crs_range_free); GPtrArray *io_ranges = g_ptr_array_new_with_free_func(crs_range_free); - PCMachineState *pcms = PC_MACHINE(machine); uint32_t nr_mem = machine->ram_slots; int root_bus_limit = 0xFF; PCIBus *bus = NULL; @@ -2251,7 +2261,7 @@ build_dsdt(GArray *table_data, GArray *linker, sb_scope = aml_scope("\\_SB"); { - build_processor_devices(sb_scope, pcms->apic_id_limit, cpu, pm); + build_processor_devices(sb_scope, machine, cpu, pm); build_memory_devices(sb_scope, nr_mem, pm->mem_hp_io_base, pm->mem_hp_io_len);