hvmloader: 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@citrix.com>
Committed-by: Keir Fraser <keir@xen.org>

diff --git a/tools/firmware/hvmloader/acpi/dsdt.asl b/tools/firmware/hvmloader/acpi/dsdt.asl
index ca64feca610e04575efea91929ff33ad112670fb..bf44dd63c42152424130952919cae1cee73fa108 100644 (file)
--- a/tools/firmware/hvmloader/acpi/dsdt.asl
+++ b/tools/firmware/hvmloader/acpi/dsdt.asl
@@ -399,7 +399,7 @@ DefinitionBlock ("DSDT.aml", "DSDT", 2, "Xen", "HVM", 0)
                 } 
 
                 Device(VGID) {
-                    Name(_HID, EisaID ("PNP0A06"))
+                    Name(_HID, EisaID ("XEN0000"))
                     Name(_UID, 0x00)
                     Name(_CID, "VM_Gen_Counter")
                     Name(_DDN, "VM_Gen_Counter")