hw/riscv/virt-acpi-build.c: Add PLIC in MADT

Add PLIC structures for each socket in the MADT when system is
configured with PLIC as the external interrupt controller.

Signed-off-by: Haibo Xu <haibo1.xu@intel.com>
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: <20231218150247.466427-14-sunilvl@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

1 files changed, 29 insertions, 0 deletions

diff --git a/hw/riscv/virt-acpi-build.c b/hw/riscv/virt-acpi-build.c
index 536e6b0243..26c7e4482d 100644
--- a/hw/riscv/virt-acpi-build.c
+++ b/hw/riscv/virt-acpi-build.c
@@ -94,6 +94,12 @@ static void riscv_acpi_madt_add_rintc(uint32_t uid,
                                       arch_ids->cpus[uid].props.node_id,
                                       local_cpu_id),
                                   4);
+    } else if (s->aia_type == VIRT_AIA_TYPE_NONE) {
+        build_append_int_noprefix(entry,
+                                  ACPI_BUILD_INTC_ID(
+                                      arch_ids->cpus[uid].props.node_id,
+                                      2 * local_cpu_id + 1),
+                                  4);
     } else {
         build_append_int_noprefix(entry, 0, 4);
     }
@@ -494,6 +500,29 @@ static void build_madt(GArray *table_data,
             build_append_int_noprefix(table_data,
                                       s->memmap[VIRT_APLIC_S].size, 4);
         }
+    } else {
+        /* PLICs */
+        for (socket = 0; socket < riscv_socket_count(ms); socket++) {
+            aplic_addr = s->memmap[VIRT_PLIC].base +
+                         s->memmap[VIRT_PLIC].size * socket;
+            gsi_base = VIRT_IRQCHIP_NUM_SOURCES * socket;
+            build_append_int_noprefix(table_data, 0x1B, 1);   /* Type */
+            build_append_int_noprefix(table_data, 36, 1);     /* Length */
+            build_append_int_noprefix(table_data, 1, 1);      /* Version */
+            build_append_int_noprefix(table_data, socket, 1); /* PLIC ID */
+            build_append_int_noprefix(table_data, 0, 8);      /* Hardware ID */
+            /* Total External Interrupt Sources Supported */
+            build_append_int_noprefix(table_data,
+                                      VIRT_IRQCHIP_NUM_SOURCES - 1, 2);
+            build_append_int_noprefix(table_data, 0, 2);     /* Max Priority */
+            build_append_int_noprefix(table_data, 0, 4);     /* Flags */
+            /* PLIC Size */
+            build_append_int_noprefix(table_data, s->memmap[VIRT_PLIC].size, 4);
+            /* PLIC Address */
+            build_append_int_noprefix(table_data, aplic_addr, 8);
+            /* Global System Interrupt Vector Base */
+            build_append_int_noprefix(table_data, gsi_base, 4);
+        }
     }
 
     acpi_table_end(linker, &table);