[Xen-changelog] [qemu-upstream-unstable] pc: acpi: fix WindowsXP BSOD when memory hotplug is enabled

[patchbot@xxxxxxx]

commit dab0efc33fc839d76ca39353c3538052eabdb796
Author:     Igor Mammedov <imammedo@xxxxxxxxxx>
AuthorDate: Fri Dec 19 11:46:57 2014 +0000
Commit:     Michael Roth <mdroth@xxxxxxxxxxxxxxxxxx>
CommitDate: Sun Mar 8 22:58:14 2015 -0500

    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@xxxxxxxxxx
    Signed-off-by: Igor Mammedov <imammedo@xxxxxxxxxx>
    Reviewed-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
    Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
    (cherry picked from commit 6d4e4cb9985e24557abcf3932a0e7f8f6ab3c1d2)
    Signed-off-by: Michael Roth <mdroth@xxxxxxxxxxxxxxxxxx>
---
 hw/i386/acpi-dsdt-cpu-hotplug.dsl |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/hw/i386/acpi-dsdt-cpu-hotplug.dsl 
b/hw/i386/acpi-dsdt-cpu-hotplug.dsl
index 34aab5a..268d870 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, EisaId("PNP0A06"))
+        Name(_UID, "CPU hotplug resources")
 
         Name(_CRS, ResourceTemplate() {
             IO(Decode16, CPU_STATUS_BASE, CPU_STATUS_BASE, 0, CPU_STATUS_LEN)
--
generated by git-patchbot for /home/xen/git/qemu-upstream-unstable.git

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