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ACPI: Virt: Generate SRAT table 

To support NUMA, it needs to generate SRAT ACPI table.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 1461667229-9216-6-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Shannon Zhao 2016-05-12 13:22:28 +01:00 committed by Peter Maydell
parent 64b831367b
commit 2b302e1e3c
1 changed files with 52 additions and 0 deletions
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52
hw/arm/virt-acpi-build.c
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@ -43,6 +43,7 @@
#include "hw/acpi/aml-build.h"
#include "hw/pci/pcie_host.h"
#include "hw/pci/pci.h"
#include "sysemu/numa.h"
#define ARM_SPI_BASE 32
#define ACPI_POWER_BUTTON_DEVICE "PWRB"
@ -413,6 +414,52 @@ build_spcr(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info)
NULL, NULL);
}
static void
build_srat(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info)
{
AcpiSystemResourceAffinityTable *srat;
AcpiSratProcessorGiccAffinity *core;
AcpiSratMemoryAffinity *numamem;
int i, j, srat_start;
uint64_t mem_base;
uint32_t *cpu_node = g_malloc0(guest_info->smp_cpus * sizeof(uint32_t));
for (i = 0; i < guest_info->smp_cpus; i++) {
for (j = 0; j < nb_numa_nodes; j++) {
if (test_bit(i, numa_info[j].node_cpu)) {
cpu_node[i] = j;
break;
}
}
}
srat_start = table_data->len;
srat = acpi_data_push(table_data, sizeof(*srat));
srat->reserved1 = cpu_to_le32(1);
for (i = 0; i < guest_info->smp_cpus; ++i) {
core = acpi_data_push(table_data, sizeof(*core));
core->type = ACPI_SRAT_PROCESSOR_GICC;
core->length = sizeof(*core);
core->proximity = cpu_to_le32(cpu_node[i]);
core->acpi_processor_uid = cpu_to_le32(i);
core->flags = cpu_to_le32(1);
}
g_free(cpu_node);
mem_base = guest_info->memmap[VIRT_MEM].base;
for (i = 0; i < nb_numa_nodes; ++i) {
numamem = acpi_data_push(table_data, sizeof(*numamem));
build_srat_memory(numamem, mem_base, numa_info[i].node_mem, i,
MEM_AFFINITY_ENABLED);
mem_base += numa_info[i].node_mem;
}
build_header(linker, table_data,
(void *)(table_data->data + srat_start), "SRAT",
table_data->len - srat_start, 3, NULL, NULL);
}
static void
build_mcfg(GArray *table_data, GArray *linker, VirtGuestInfo *guest_info)
{
@ -638,6 +685,11 @@ void virt_acpi_build(VirtGuestInfo *guest_info, AcpiBuildTables *tables)
acpi_add_table(table_offsets, tables_blob);
build_spcr(tables_blob, tables->linker, guest_info);
if (nb_numa_nodes > 0) {
acpi_add_table(table_offsets, tables_blob);
build_srat(tables_blob, tables->linker, guest_info);
}
/* RSDT is pointed to by RSDP */
rsdt = tables_blob->len;
build_rsdt(tables_blob, tables->linker, table_offsets, NULL, NULL);