IASL stores it's revision in each table header it generates.
That's not nice since guests will see a change each time they move
between hypervisors. We generally fill our own info for tables, but we
(and seabios) forgot to do this for the built-in DSDT.
Modifications in DSDT table:
OEM ID: "BXPC" -> "BOCHS "
OEM Table ID: "BXDSDT" -> "BXPCDSDT"
Compiler ID: "INTL" -> "BXPC"
Compiler Version: 0x20130823 -> 0x00000001
Tested-by: Marcel Apfelbaum <marce...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
hw/i386/acpi-build.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index befc39f..48312f5 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -924,10 +924,16 @@ build_mcfg_q35(GArray *table_data, GArray *linker,
AcpiMcfgInfo *info)
static void
build_dsdt(GArray *table_data, GArray *linker, AcpiMiscInfo *misc)
{
- void *dsdt;
+ AcpiTableHeader *dsdt;
+
assert(misc->dsdt_code && misc->dsdt_size);
+
dsdt = acpi_data_push(table_data, misc->dsdt_size);
memcpy(dsdt, misc->dsdt_code, misc->dsdt_size);
+
+ memset(dsdt, 0, sizeof *dsdt);
+ build_header(linker, table_data, dsdt, ACPI_DSDT_SIGNATURE,
+ misc->dsdt_size, 1);
}
/* Build final rsdt table */
--
MST
