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Re: [PATCH v2 02/13] acpi: create acpi-common.c and move madt code
From: |
Igor Mammedov |
Subject: |
Re: [PATCH v2 02/13] acpi: create acpi-common.c and move madt code |
Date: |
Tue, 5 May 2020 16:00:54 +0200 |
On Tue, 5 May 2020 15:42:54 +0200
Gerd Hoffmann <address@hidden> wrote:
maybe add here that's it's going to be reused by microvm, hence the movement
> Signed-off-by: Gerd Hoffmann <address@hidden>
Reviewed-by: Igor Mammedov <address@hidden>
> ---
> 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 fe60c10201ad..eb530e5cd56d 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;
> @@ -2560,8 +2440,8 @@ 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 <address@hidden>
> + * Copyright (C) 2006 Fabrice Bellard
> + * Copyright (C) 2013 Red Hat Inc
> + *
> + * Author: Michael S. Tsirkin <address@hidden>
> + *
> + * 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 <http://www.gnu.org/licenses/>.
> + */
> +
> +#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
- [PATCH v2 00/13] microvm: add acpi support, Gerd Hoffmann, 2020/05/05
- [PATCH v2 01/13] acpi: make build_madt() more generic., Gerd Hoffmann, 2020/05/05
- [PATCH v2 06/13] acpi: move acpi_align_size to acpi-common.h, Gerd Hoffmann, 2020/05/05
- [PATCH v2 02/13] acpi: create acpi-common.c and move madt code, Gerd Hoffmann, 2020/05/05
- Re: [PATCH v2 02/13] acpi: create acpi-common.c and move madt code,
Igor Mammedov <=
- [PATCH v2 07/13] acpi: fadt: add hw-reduced sleep register support, Gerd Hoffmann, 2020/05/05
- [PATCH v2 09/13] microvm: add minimal acpi support, Gerd Hoffmann, 2020/05/05
[PATCH v2 03/13] acpi: madt: skip pci override on pci-less systems (microvm), Gerd Hoffmann, 2020/05/05