Commit 53db092a authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
Browse files

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: default avatarMarcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 53333801

hw/i386/acpi-build.c

+7 −1
Original line number Diff line number Diff line
@@ -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 */