On Fri, Apr 04, 2014 at 03:36:55PM +0200, Igor Mammedov wrote:
> Following patches will add another ACPI0004 device
> to the same scope, and that will make Windows BSOD
> because it thinks that the second ACPI0004 device
> is duplicate.
> Adding to device unique _UID, fixes issue and allows
> Windows to distinguish devices with the same _HID
>
> Signed-off-by: Igor Mammedov <imamm...@redhat.com>
Weren't we going to rename ACPI0004 to PNP0C02 or something?
I remember it creates problems for older guests.
> ---
> hw/i386/acpi-dsdt-cpu-hotplug.dsl | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/hw/i386/acpi-dsdt-cpu-hotplug.dsl
> b/hw/i386/acpi-dsdt-cpu-hotplug.dsl
> index dee4843..81fb876 100644
> --- a/hw/i386/acpi-dsdt-cpu-hotplug.dsl
> +++ b/hw/i386/acpi-dsdt-cpu-hotplug.dsl
> @@ -94,6 +94,7 @@ Scope(\_SB) {
>
> Device(CPU_HOTPLUG_RESOURCE_DEVICE) {
> Name(_HID, "ACPI0004")
> + Name(_UID, "CPU hotplug resources")
>
> Name(_CRS, ResourceTemplate() {
> IO(Decode16, CPU_STATUS_BASE, CPU_STATUS_BASE, 0, CPU_STATUS_LEN)
> --
> 1.9.0
