[Xen-devel] [PATCH] Change VM Generation Id Device HID

[Paul Durrant <paul.durrant@xxxxxxxxxx>]

# HG changeset patch
# User Paul Durrant <paul.durrant@xxxxxxxxxx>
# Date 1322836489 0
# Node ID c661ed4d21fc824443237fa3e4bf88546ea92b27
# Parent  62ff6a318c5db7779fdbf4ddfdfc9506e86fa701
Change VM Generation Id Device HID.

Unfortunately a HID of PNP0A06 will not work for an existing client driver so
this patch aims to choose something that's pretty certain not to class with
anything else.

Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>

diff -r 62ff6a318c5d -r c661ed4d21fc tools/firmware/hvmloader/acpi/dsdt.asl
--- a/tools/firmware/hvmloader/acpi/dsdt.asl    Wed Nov 30 16:59:58 2011 -0800
+++ b/tools/firmware/hvmloader/acpi/dsdt.asl    Fri Dec 02 14:34:49 2011 +0000
@@ -399,7 +399,7 @@ DefinitionBlock ("DSDT.aml", "DSDT", 2, 
                 } 
 
                 Device(VGID) {
-                    Name(_HID, EisaID ("PNP0A06"))
+                    Name(_HID, EisaID ("XEN0000"))
                     Name(_UID, 0x00)
                     Name(_CID, "VM_Gen_Counter")
                     Name(_DDN, "VM_Gen_Counter")

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