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[88.21.202.17]) by smtp.gmail.com with ESMTPSA id n7sm1748446wrj.39.2020.05.20.06.31.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 20 May 2020 06:31:38 -0700 (PDT) Subject: Re: [PATCH v3 06/22] acpi: create acpi-common.c and move madt code To: Gerd Hoffmann , qemu-devel@nongnu.org References: <20200520132003.9492-1-kraxel@redhat.com> <20200520132003.9492-7-kraxel@redhat.com> From: =?UTF-8?Q?Philippe_Mathieu-Daud=c3=a9?= Message-ID: <4aac4bfc-1701-d181-ba21-ba0cafd12adb@redhat.com> Date: Wed, 20 May 2020 15:31:37 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: <20200520132003.9492-7-kraxel@redhat.com> Content-Language: en-US X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=207.211.31.120; envelope-from=philmd@redhat.com; helo=us-smtp-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/20 01:34:51 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN 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: Peter Maydell , Eduardo Habkost , Sergio Lopez , "Michael S. Tsirkin" , Shannon Zhao , qemu-arm@nongnu.org, Igor Mammedov , Paolo Bonzini , Richard Henderson Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On 5/20/20 3:19 PM, Gerd Hoffmann wrote: > We'll need madt support for microvm. > > Signed-off-by: Gerd Hoffmann > Reviewed-by: Igor Mammedov > --- > hw/i386/acpi-common.h | 14 ++++ > hw/i386/acpi-build.c | 126 +--------------------------------- > hw/i386/acpi-common.c | 152 ++++++++++++++++++++++++++++++++++++++++++ > hw/i386/Makefile.objs | 1 + > 4 files changed, 170 insertions(+), 123 deletions(-) > create mode 100644 hw/i386/acpi-common.h > create mode 100644 hw/i386/acpi-common.c > > diff --git a/hw/i386/acpi-common.h b/hw/i386/acpi-common.h > new file mode 100644 > index 000000000000..c30e461f1854 > --- /dev/null > +++ b/hw/i386/acpi-common.h > @@ -0,0 +1,14 @@ > +#ifndef HW_I386_ACPI_COMMON_H > +#define HW_I386_ACPI_COMMON_H > +#include "include/hw/acpi/acpi_dev_interface.h" > + > +#include "include/hw/acpi/bios-linker-loader.h" > +#include "include/hw/i386/x86.h" > + > +/* Default IOAPIC ID */ > +#define ACPI_BUILD_IOAPIC_ID 0x0 > + > +void acpi_build_madt(GArray *table_data, BIOSLinker *linker, > + X86MachineState *x86ms, AcpiDeviceIf *adev); > + > +#endif > diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c > index 4f6418d60b05..c0fdd539a640 100644 > --- a/hw/i386/acpi-build.c > +++ b/hw/i386/acpi-build.c > @@ -24,6 +24,7 @@ > #include "qapi/error.h" > #include "qapi/qmp/qnum.h" > #include "acpi-build.h" > +#include "acpi-common.h" > #include "qemu/bitmap.h" > #include "qemu/error-report.h" > #include "hw/pci/pci.h" > @@ -89,9 +90,6 @@ > #define ACPI_BUILD_DPRINTF(fmt, ...) > #endif > > -/* Default IOAPIC ID */ > -#define ACPI_BUILD_IOAPIC_ID 0x0 > - > typedef struct AcpiPmInfo { > bool s3_disabled; > bool s4_disabled; > @@ -327,124 +325,6 @@ build_facs(GArray *table_data) > facs->length = cpu_to_le32(sizeof(*facs)); > } > > -void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid, > - const CPUArchIdList *apic_ids, GArray *entry) > -{ > - uint32_t apic_id = apic_ids->cpus[uid].arch_id; > - > - /* ACPI spec says that LAPIC entry for non present > - * CPU may be omitted from MADT or it must be marked > - * as disabled. However omitting non present CPU from > - * MADT breaks hotplug on linux. So possible CPUs > - * should be put in MADT but kept disabled. > - */ > - if (apic_id < 255) { > - AcpiMadtProcessorApic *apic = acpi_data_push(entry, sizeof *apic); > - > - apic->type = ACPI_APIC_PROCESSOR; > - apic->length = sizeof(*apic); > - apic->processor_id = uid; > - apic->local_apic_id = apic_id; > - if (apic_ids->cpus[uid].cpu != NULL) { > - apic->flags = cpu_to_le32(1); > - } else { > - apic->flags = cpu_to_le32(0); > - } > - } else { > - AcpiMadtProcessorX2Apic *apic = acpi_data_push(entry, sizeof *apic); > - > - apic->type = ACPI_APIC_LOCAL_X2APIC; > - apic->length = sizeof(*apic); > - apic->uid = cpu_to_le32(uid); > - apic->x2apic_id = cpu_to_le32(apic_id); > - if (apic_ids->cpus[uid].cpu != NULL) { > - apic->flags = cpu_to_le32(1); > - } else { > - apic->flags = cpu_to_le32(0); > - } > - } > -} > - > -static void > -build_madt(GArray *table_data, BIOSLinker *linker, > - X86MachineState *x86ms, AcpiDeviceIf *adev) > -{ > - MachineClass *mc = MACHINE_GET_CLASS(x86ms); > - const CPUArchIdList *apic_ids = mc->possible_cpu_arch_ids(MACHINE(x86ms)); > - int madt_start = table_data->len; > - AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(adev); > - bool x2apic_mode = false; > - > - AcpiMultipleApicTable *madt; > - AcpiMadtIoApic *io_apic; > - AcpiMadtIntsrcovr *intsrcovr; > - int i; > - > - madt = acpi_data_push(table_data, sizeof *madt); > - madt->local_apic_address = cpu_to_le32(APIC_DEFAULT_ADDRESS); > - madt->flags = cpu_to_le32(1); > - > - for (i = 0; i < apic_ids->len; i++) { > - adevc->madt_cpu(adev, i, apic_ids, table_data); > - if (apic_ids->cpus[i].arch_id > 254) { > - x2apic_mode = true; > - } > - } > - > - io_apic = acpi_data_push(table_data, sizeof *io_apic); > - io_apic->type = ACPI_APIC_IO; > - io_apic->length = sizeof(*io_apic); > - io_apic->io_apic_id = ACPI_BUILD_IOAPIC_ID; > - io_apic->address = cpu_to_le32(IO_APIC_DEFAULT_ADDRESS); > - io_apic->interrupt = cpu_to_le32(0); > - > - if (x86ms->apic_xrupt_override) { > - intsrcovr = acpi_data_push(table_data, sizeof *intsrcovr); > - intsrcovr->type = ACPI_APIC_XRUPT_OVERRIDE; > - intsrcovr->length = sizeof(*intsrcovr); > - intsrcovr->source = 0; > - intsrcovr->gsi = cpu_to_le32(2); > - intsrcovr->flags = cpu_to_le16(0); /* conforms to bus specifications */ > - } > - for (i = 1; i < 16; i++) { > -#define ACPI_BUILD_PCI_IRQS ((1<<5) | (1<<9) | (1<<10) | (1<<11)) > - if (!(ACPI_BUILD_PCI_IRQS & (1 << i))) { > - /* No need for a INT source override structure. */ > - continue; > - } > - intsrcovr = acpi_data_push(table_data, sizeof *intsrcovr); > - intsrcovr->type = ACPI_APIC_XRUPT_OVERRIDE; > - intsrcovr->length = sizeof(*intsrcovr); > - intsrcovr->source = i; > - intsrcovr->gsi = cpu_to_le32(i); > - intsrcovr->flags = cpu_to_le16(0xd); /* active high, level triggered */ > - } > - > - if (x2apic_mode) { > - AcpiMadtLocalX2ApicNmi *local_nmi; > - > - local_nmi = acpi_data_push(table_data, sizeof *local_nmi); > - local_nmi->type = ACPI_APIC_LOCAL_X2APIC_NMI; > - local_nmi->length = sizeof(*local_nmi); > - local_nmi->uid = 0xFFFFFFFF; /* all processors */ > - local_nmi->flags = cpu_to_le16(0); > - local_nmi->lint = 1; /* ACPI_LINT1 */ > - } else { > - AcpiMadtLocalNmi *local_nmi; > - > - local_nmi = acpi_data_push(table_data, sizeof *local_nmi); > - local_nmi->type = ACPI_APIC_LOCAL_NMI; > - local_nmi->length = sizeof(*local_nmi); > - local_nmi->processor_id = 0xff; /* all processors */ > - local_nmi->flags = cpu_to_le16(0); > - local_nmi->lint = 1; /* ACPI_LINT1 */ > - } > - > - build_header(linker, table_data, > - (void *)(table_data->data + madt_start), "APIC", > - table_data->len - madt_start, 1, NULL, NULL); > -} > - > static void build_append_pcihp_notify_entry(Aml *method, int slot) > { > Aml *if_ctx; > @@ -2533,8 +2413,8 @@ void acpi_build(AcpiBuildTables *tables, MachineState *machine) > aml_len += tables_blob->len - fadt; > > acpi_add_table(table_offsets, tables_blob); > - build_madt(tables_blob, tables->linker, x86ms, > - ACPI_DEVICE_IF(pcms->acpi_dev)); > + acpi_build_madt(tables_blob, tables->linker, x86ms, > + ACPI_DEVICE_IF(pcms->acpi_dev)); > > vmgenid_dev = find_vmgenid_dev(); > if (vmgenid_dev) { > diff --git a/hw/i386/acpi-common.c b/hw/i386/acpi-common.c > new file mode 100644 > index 000000000000..5caca16a0b59 > --- /dev/null > +++ b/hw/i386/acpi-common.c > @@ -0,0 +1,152 @@ > +/* Support for generating ACPI tables and passing them to Guests > + * > + * Copyright (C) 2008-2010 Kevin O'Connor > + * Copyright (C) 2006 Fabrice Bellard > + * Copyright (C) 2013 Red Hat Inc > + * > + * Author: Michael S. Tsirkin > + * > + * This program is free software; you can redistribute it and/or modify > + * it 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. > + > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + > + * You should have received a copy of the GNU General Public License along > + * with this program; if not, see . > + */ > + > +#include "qemu/osdep.h" > +#include "qapi/error.h" > + > +#include "exec/memory.h" > +#include "hw/acpi/acpi.h" > +#include "hw/acpi/aml-build.h" > +#include "hw/acpi/utils.h" > +#include "hw/i386/pc.h" > +#include "target/i386/cpu.h" > + > +#include "acpi-build.h" > +#include "acpi-common.h" > + > +void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid, > + const CPUArchIdList *apic_ids, GArray *entry) > +{ > + uint32_t apic_id = apic_ids->cpus[uid].arch_id; > + > + /* ACPI spec says that LAPIC entry for non present > + * CPU may be omitted from MADT or it must be marked > + * as disabled. However omitting non present CPU from > + * MADT breaks hotplug on linux. So possible CPUs > + * should be put in MADT but kept disabled. > + */ > + if (apic_id < 255) { > + AcpiMadtProcessorApic *apic = acpi_data_push(entry, sizeof *apic); > + > + apic->type = ACPI_APIC_PROCESSOR; > + apic->length = sizeof(*apic); > + apic->processor_id = uid; > + apic->local_apic_id = apic_id; > + if (apic_ids->cpus[uid].cpu != NULL) { > + apic->flags = cpu_to_le32(1); > + } else { > + apic->flags = cpu_to_le32(0); > + } > + } else { > + AcpiMadtProcessorX2Apic *apic = acpi_data_push(entry, sizeof *apic); > + > + apic->type = ACPI_APIC_LOCAL_X2APIC; > + apic->length = sizeof(*apic); > + apic->uid = cpu_to_le32(uid); > + apic->x2apic_id = cpu_to_le32(apic_id); > + if (apic_ids->cpus[uid].cpu != NULL) { > + apic->flags = cpu_to_le32(1); > + } else { > + apic->flags = cpu_to_le32(0); > + } > + } > +} > + > +void acpi_build_madt(GArray *table_data, BIOSLinker *linker, > + X86MachineState *x86ms, AcpiDeviceIf *adev) > +{ > + MachineClass *mc = MACHINE_GET_CLASS(x86ms); > + const CPUArchIdList *apic_ids = mc->possible_cpu_arch_ids(MACHINE(x86ms)); > + int madt_start = table_data->len; > + AcpiDeviceIfClass *adevc = ACPI_DEVICE_IF_GET_CLASS(adev); > + bool x2apic_mode = false; > + > + AcpiMultipleApicTable *madt; > + AcpiMadtIoApic *io_apic; > + AcpiMadtIntsrcovr *intsrcovr; > + int i; > + > + madt = acpi_data_push(table_data, sizeof *madt); > + madt->local_apic_address = cpu_to_le32(APIC_DEFAULT_ADDRESS); > + madt->flags = cpu_to_le32(1); > + > + for (i = 0; i < apic_ids->len; i++) { > + adevc->madt_cpu(adev, i, apic_ids, table_data); > + if (apic_ids->cpus[i].arch_id > 254) { > + x2apic_mode = true; > + } > + } > + > + io_apic = acpi_data_push(table_data, sizeof *io_apic); > + io_apic->type = ACPI_APIC_IO; > + io_apic->length = sizeof(*io_apic); > + io_apic->io_apic_id = ACPI_BUILD_IOAPIC_ID; > + io_apic->address = cpu_to_le32(IO_APIC_DEFAULT_ADDRESS); > + io_apic->interrupt = cpu_to_le32(0); > + > + if (x86ms->apic_xrupt_override) { > + intsrcovr = acpi_data_push(table_data, sizeof *intsrcovr); > + intsrcovr->type = ACPI_APIC_XRUPT_OVERRIDE; > + intsrcovr->length = sizeof(*intsrcovr); > + intsrcovr->source = 0; > + intsrcovr->gsi = cpu_to_le32(2); > + intsrcovr->flags = cpu_to_le16(0); /* conforms to bus specifications */ > + } > + for (i = 1; i < 16; i++) { > +#define ACPI_BUILD_PCI_IRQS ((1<<5) | (1<<9) | (1<<10) | (1<<11)) > + if (!(ACPI_BUILD_PCI_IRQS & (1 << i))) { > + /* No need for a INT source override structure. */ > + continue; > + } > + intsrcovr = acpi_data_push(table_data, sizeof *intsrcovr); > + intsrcovr->type = ACPI_APIC_XRUPT_OVERRIDE; > + intsrcovr->length = sizeof(*intsrcovr); > + intsrcovr->source = i; > + intsrcovr->gsi = cpu_to_le32(i); > + intsrcovr->flags = cpu_to_le16(0xd); /* active high, level triggered */ > + } > + > + if (x2apic_mode) { > + AcpiMadtLocalX2ApicNmi *local_nmi; > + > + local_nmi = acpi_data_push(table_data, sizeof *local_nmi); > + local_nmi->type = ACPI_APIC_LOCAL_X2APIC_NMI; > + local_nmi->length = sizeof(*local_nmi); > + local_nmi->uid = 0xFFFFFFFF; /* all processors */ > + local_nmi->flags = cpu_to_le16(0); > + local_nmi->lint = 1; /* ACPI_LINT1 */ > + } else { > + AcpiMadtLocalNmi *local_nmi; > + > + local_nmi = acpi_data_push(table_data, sizeof *local_nmi); > + local_nmi->type = ACPI_APIC_LOCAL_NMI; > + local_nmi->length = sizeof(*local_nmi); > + local_nmi->processor_id = 0xff; /* all processors */ > + local_nmi->flags = cpu_to_le16(0); > + local_nmi->lint = 1; /* ACPI_LINT1 */ > + } > + > + build_header(linker, table_data, > + (void *)(table_data->data + madt_start), "APIC", > + table_data->len - madt_start, 1, NULL, NULL); > +} > + > diff --git a/hw/i386/Makefile.objs b/hw/i386/Makefile.objs > index 8ce1b265335b..6abc74551a72 100644 > --- a/hw/i386/Makefile.objs > +++ b/hw/i386/Makefile.objs > @@ -16,4 +16,5 @@ obj-$(CONFIG_VMMOUSE) += vmmouse.o > obj-$(CONFIG_PC) += port92.o > > obj-y += kvmvapic.o > +obj-$(CONFIG_ACPI) += acpi-common.o > obj-$(CONFIG_PC) += acpi-build.o > Reviewed-by: Philippe Mathieu-Daudé