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acpi: strip compiler info in built-in DSDT 

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 <marcel.a@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2013-11-14 13:51:25 +02:00
parent 53333801e7
commit 53db092ad1
1 changed files with 7 additions and 1 deletions
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8
hw/i386/acpi-build.c
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@ -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 */