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pc: acpi: fix WindowsXP BSOD when memory hotplug is enabled 

ACPI parser in XP considers PNP0A06 devices of CPU and
memory hotplug as duplicates. Adding unique _UID
to CPU hotplug device fixes BSOD.

Cc: qemu-stable@nongnu.org
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
master
Igor Mammedov 2014-12-19 11:46:57 +00:00 committed by Michael S. Tsirkin
parent 27fb9688f9
commit 6d4e4cb998
1 changed files with 1 additions and 0 deletions
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hw/i386/acpi-dsdt-cpu-hotplug.dsl
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@ -94,6 +94,7 @@ Scope(\_SB) {
Device(CPU_HOTPLUG_RESOURCE_DEVICE) {
Name(_HID, EisaId("PNP0A06"))
Name(_UID, "CPU hotplug resources")
Name(_CRS, ResourceTemplate() {
IO(Decode16, CPU_STATUS_BASE, CPU_STATUS_BASE, 0, CPU_STATUS_LEN)