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authorSunil V L <sunilvl@ventanamicro.com>2023-03-02 14:42:09 +0530
committerPalmer Dabbelt <palmer@rivosinc.com>2023-03-06 11:35:05 -0800
commit6cc40ea2117fd81cc14fcb22e2b7a9f77b5a8dae (patch)
tree30006df386b81888b4e8938c32d02870e90f9133 /hw
parent7da2fb240f9750d9a6fd2dac1397ec18b512a1b5 (diff)
hw/riscv/virt: virt-acpi-build.c: Add RINTC in MADT
Add Multiple APIC Description Table (MADT) with the RINTC structure for each cpu. Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Message-ID: <20230302091212.999767-6-sunilvl@ventanamicro.com> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/riscv/virt-acpi-build.c34
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,