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authorSunil V L <sunilvl@ventanamicro.com>2023-12-18 20:32:43 +0530
committerAlistair Francis <alistair.francis@wdc.com>2024-01-10 18:47:47 +1000
commita52aea263e0f25993e368ee682d96f32aff52499 (patch)
tree713bc0356a02c38f380d328dbd8dccf179b8e376 /hw/riscv
parente810a5177c44509e17293d4c7e6cffab8ce197c9 (diff)
hw/riscv/virt-acpi-build.c: Add MMU node in RHCT
MMU type information is available via MMU node in RHCT. Add this node in RHCT. Signed-off-by: Sunil V L <sunilvl@ventanamicro.com> Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com> Reviewed-by: Andrew Jones <ajones@ventanamicro.com> Acked-by: Alistair Francis <alistair.francis@wdc.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Message-ID: <20231218150247.466427-10-sunilvl@ventanamicro.com> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'hw/riscv')
-rw-r--r--hw/riscv/virt-acpi-build.c36
1 files changed, 35 insertions, 1 deletions
diff --git a/hw/riscv/virt-acpi-build.c b/hw/riscv/virt-acpi-build.c
index 784bbffead..b7db57b28a 100644
--- a/hw/riscv/virt-acpi-build.c
+++ b/hw/riscv/virt-acpi-build.c
@@ -152,6 +152,8 @@ static void build_rhct(GArray *table_data,
size_t len, aligned_len;
uint32_t isa_offset, num_rhct_nodes, cmo_offset = 0;
RISCVCPU *cpu = &s->soc[0].harts[0];
+ uint32_t mmu_offset = 0;
+ uint8_t satp_mode_max;
char *isa;
AcpiTable table = { .sig = "RHCT", .rev = 1, .oem_id = s->oem_id,
@@ -171,6 +173,10 @@ static void build_rhct(GArray *table_data,
num_rhct_nodes++;
}
+ if (cpu->cfg.satp_mode.supported != 0) {
+ num_rhct_nodes++;
+ }
+
/* Number of RHCT nodes*/
build_append_int_noprefix(table_data, num_rhct_nodes, 4);
@@ -226,6 +232,26 @@ static void build_rhct(GArray *table_data,
}
}
+ /* MMU node structure */
+ if (cpu->cfg.satp_mode.supported != 0) {
+ satp_mode_max = satp_mode_max_from_map(cpu->cfg.satp_mode.map);
+ mmu_offset = table_data->len - table.table_offset;
+ build_append_int_noprefix(table_data, 2, 2); /* Type */
+ build_append_int_noprefix(table_data, 8, 2); /* Length */
+ build_append_int_noprefix(table_data, 0x1, 2); /* Revision */
+ build_append_int_noprefix(table_data, 0, 1); /* Reserved */
+ /* MMU Type */
+ if (satp_mode_max == VM_1_10_SV57) {
+ build_append_int_noprefix(table_data, 2, 1); /* Sv57 */
+ } else if (satp_mode_max == VM_1_10_SV48) {
+ build_append_int_noprefix(table_data, 1, 1); /* Sv48 */
+ } else if (satp_mode_max == VM_1_10_SV39) {
+ build_append_int_noprefix(table_data, 0, 1); /* Sv39 */
+ } else {
+ assert(1);
+ }
+ }
+
/* Hart Info Node */
for (int i = 0; i < arch_ids->len; i++) {
len = 16;
@@ -238,17 +264,25 @@ static void build_rhct(GArray *table_data,
num_offsets++;
}
+ if (mmu_offset) {
+ len += 4;
+ num_offsets++;
+ }
+
build_append_int_noprefix(table_data, len, 2);
build_append_int_noprefix(table_data, 0x1, 2); /* Revision */
/* Number of offsets */
build_append_int_noprefix(table_data, num_offsets, 2);
build_append_int_noprefix(table_data, i, 4); /* ACPI Processor UID */
-
/* Offsets */
build_append_int_noprefix(table_data, isa_offset, 4);
if (cmo_offset) {
build_append_int_noprefix(table_data, cmo_offset, 4);
}
+
+ if (mmu_offset) {
+ build_append_int_noprefix(table_data, mmu_offset, 4);
+ }
}
acpi_table_end(linker, &table);