diff options
Diffstat (limited to 'hw/riscv/virt-acpi-build.c')
| -rw-r--r-- | hw/riscv/virt-acpi-build.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/hw/riscv/virt-acpi-build.c b/hw/riscv/virt-acpi-build.c index d6947fdc74..026d1eaf88 100644 --- a/hw/riscv/virt-acpi-build.c +++ b/hw/riscv/virt-acpi-build.c @@ -32,6 +32,7 @@ #include "sysemu/reset.h" #include "migration/vmstate.h" #include "hw/riscv/virt.h" +#include "hw/riscv/numa.h" #define ACPI_BUILD_TABLE_SIZE 0x20000 @@ -160,6 +161,36 @@ static void build_dsdt(GArray *table_data, free_aml_allocator(); } +/* + * ACPI spec, Revision 6.5+ + * 5.2.12 Multiple APIC Description Table (MADT) + * REF: https://github.com/riscv-non-isa/riscv-acpi/issues/15 + * https://drive.google.com/file/d/1R6k4MshhN3WTT-hwqAquu5nX6xSEqK2l/view + */ +static void build_madt(GArray *table_data, + BIOSLinker *linker, + RISCVVirtState *s) +{ + MachineClass *mc = MACHINE_GET_CLASS(s); + MachineState *ms = MACHINE(s); + const CPUArchIdList *arch_ids = mc->possible_cpu_arch_ids(ms); + + AcpiTable table = { .sig = "APIC", .rev = 6, .oem_id = s->oem_id, + .oem_table_id = s->oem_table_id }; + + 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); /* MADT Flags */ + + /* RISC-V Local INTC structures per HART */ + for (int i = 0; i < arch_ids->len; i++) { + riscv_acpi_madt_add_rintc(i, arch_ids, table_data); + } + + acpi_table_end(linker, &table); +} + static void virt_acpi_build(RISCVVirtState *s, AcpiBuildTables *tables) { GArray *table_offsets; @@ -181,6 +212,9 @@ static void virt_acpi_build(RISCVVirtState *s, AcpiBuildTables *tables) acpi_add_table(table_offsets, tables_blob); build_fadt_rev6(tables_blob, tables->linker, s, dsdt); + acpi_add_table(table_offsets, tables_blob); + build_madt(tables_blob, tables->linker, s); + /* XSDT is pointed to by RSDP */ xsdt = tables_blob->len; build_xsdt(tables_blob, tables->linker, table_offsets, s->oem_id, |