ACPI needs OEM_ID and OEM_TABLE_ID for the machine. Add these fields
in the RISCVVirtState structure and initialize with default values.

Signed-off-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Bin Meng <bmeng@tinylab.org>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
---
 hw/riscv/virt.c         | 5 +++++
 include/hw/riscv/virt.h | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/hw/riscv/virt.c b/hw/riscv/virt.c
index b81081c70b..4118d28468 100644
--- a/hw/riscv/virt.c
+++ b/hw/riscv/virt.c
@@ -49,6 +49,7 @@
 #include "hw/pci/pci.h"
 #include "hw/pci-host/gpex.h"
 #include "hw/display/ramfb.h"
+#include "hw/acpi/aml-build.h"
 
 /*
  * The virt machine physical address space used by some of the devices
@@ -1521,6 +1522,10 @@ static void virt_machine_init(MachineState *machine)
 
 static void virt_machine_instance_init(Object *obj)
 {
+    RISCVVirtState *s = RISCV_VIRT_MACHINE(obj);
+
+    s->oem_id = g_strndup(ACPI_BUILD_APPNAME6, 6);
+    s->oem_table_id = g_strndup(ACPI_BUILD_APPNAME8, 8);
 }
 
 static char *virt_get_aia_guests(Object *obj, Error **errp)
diff --git a/include/hw/riscv/virt.h b/include/hw/riscv/virt.h
index b3d26135c0..6c7885bf89 100644
--- a/include/hw/riscv/virt.h
+++ b/include/hw/riscv/virt.h
@@ -56,6 +56,8 @@ struct RISCVVirtState {
     bool have_aclint;
     RISCVVirtAIAType aia_type;
     int aia_guests;
+    char *oem_id;
+    char *oem_table_id;
 };
 
 enum {
-- 
2.34.1