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acpi: madt: arm/x86: use acpi_table_begin()/acpi_table_end() instead of build_header()

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it replaces error-prone pointer arithmetic for build_header() API,
with 2 calls to start and finish table creation,
which hides offsets magic from API user.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Message-Id: <20210924122802.1455362-22-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Igor Mammedov 2021-09-24 08:27:48 -04:00 committed by Michael S. Tsirkin
parent b0a45ff60e
commit 99a7545f92
3 changed files with 22 additions and 25 deletions
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19
hw/arm/virt-acpi-build.c
View File

@ -567,19 +567,26 @@ build_gtdt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
vms->oem_table_id);
}
/* MADT */
/*
* ACPI spec, Revision 5.0
* 5.2.12 Multiple APIC Description Table (MADT)
*/
static void
build_madt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
{
VirtMachineClass *vmc = VIRT_MACHINE_GET_CLASS(vms);
int madt_start = table_data->len;
const MemMapEntry *memmap = vms->memmap;
const int *irqmap = vms->irqmap;
AcpiMadtGenericDistributor *gicd;
AcpiMadtGenericMsiFrame *gic_msi;
int i;
AcpiTable table = { .sig = "APIC", .rev = 3, .oem_id = vms->oem_id,
.oem_table_id = vms->oem_table_id };
acpi_data_push(table_data, sizeof(AcpiMultipleApicTable));
acpi_table_begin(&table, table_data);
/* Local Interrupt Controller Address */
build_append_int_noprefix(table_data, 0, 4);
build_append_int_noprefix(table_data, 0, 4); /* Flags */
gicd = acpi_data_push(table_data, sizeof *gicd);
gicd->type = ACPI_APIC_GENERIC_DISTRIBUTOR;
@ -650,11 +657,7 @@ build_madt(GArray *table_data, BIOSLinker *linker, VirtMachineState *vms)
gic_msi->spi_count = cpu_to_le16(NUM_GICV2M_SPIS);
gic_msi->spi_base = cpu_to_le16(irqmap[VIRT_GIC_V2M] + ARM_SPI_BASE);
}
build_header(linker, table_data,
(void *)(table_data->data + madt_start), "APIC",
table_data->len - madt_start, 3, vms->oem_id,
vms->oem_table_id);
acpi_table_end(linker, &table);
}
/* FADT */

19
hw/i386/acpi-common.c
View File

@ -71,24 +71,29 @@ void pc_madt_cpu_entry(AcpiDeviceIf *adev, int uid,
}
}
/*
* ACPI spec, Revision 1.0b
* 5.2.8 Multiple APIC Description Table
*/
void acpi_build_madt(GArray *table_data, BIOSLinker *linker,
X86MachineState *x86ms, AcpiDeviceIf *adev,
const char *oem_id, const char *oem_table_id)
{
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;
AcpiTable table = { .sig = "APIC", .rev = 1, .oem_id = oem_id,
.oem_table_id = oem_table_id };
madt = acpi_data_push(table_data, sizeof *madt);
madt->local_apic_address = cpu_to_le32(APIC_DEFAULT_ADDRESS);
madt->flags = cpu_to_le32(1);
acpi_table_begin(&table, table_data);
/* Local APIC Address */
build_append_int_noprefix(table_data, APIC_DEFAULT_ADDRESS, 4);
build_append_int_noprefix(table_data, 1 /* PCAT_COMPAT */, 4); /* Flags */
for (i = 0; i < apic_ids->len; i++) {
adevc->madt_cpu(adev, i, apic_ids, table_data);
@ -156,8 +161,6 @@ void acpi_build_madt(GArray *table_data, BIOSLinker *linker,
local_nmi->lint = 1; /* ACPI_LINT1 */
}
build_header(linker, table_data,
(void *)(table_data->data + madt_start), "APIC",
table_data->len - madt_start, 1, oem_id, oem_table_id);
acpi_table_end(linker, &table);
}

9
include/hw/acpi/acpi-defs.h
View File

@ -176,15 +176,6 @@ typedef struct AcpiFacsDescriptorRev1 AcpiFacsDescriptorRev1;
#define ACPI_DUAL_PIC 0
#define ACPI_MULTIPLE_APIC 1
/* Master MADT */
struct AcpiMultipleApicTable {
ACPI_TABLE_HEADER_DEF /* ACPI common table header */
uint32_t local_apic_address; /* Physical address of local APIC */
uint32_t flags;
} QEMU_PACKED;
typedef struct AcpiMultipleApicTable AcpiMultipleApicTable;
/* Values for Type in APIC sub-headers */
#define ACPI_APIC_PROCESSOR 0