diff options
| author | Michael S. Tsirkin <mst@redhat.com> | 2013-11-14 13:51:25 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2013-12-10 13:29:22 +0200 |
| commit | 53db092ad1c81c30a617f44e83e8fb9e27c001ba (patch) | |
| tree | d2ea7eaff1d6bf76474ab316934096a3e37c5e18 | |
| parent | 53333801e7bb41487147599e1b16b60ebea74695 (diff) | |
| download | qemu-53db092ad1c81c30a617f44e83e8fb9e27c001ba.zip | |
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>
| -rw-r--r-- | hw/i386/acpi-build.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c index befc39f253..48312f5a83 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 */ |