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[Xen-changelog] [xen master] genid: Introduce again Windows generation ID device



commit 1ac127193dafb4b5a303e1b0180188141509df3e
Author:     Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>
AuthorDate: Tue Feb 19 08:54:34 2013 +0000
Commit:     Keir Fraser <keir@xxxxxxx>
CommitDate: Thu Feb 21 16:47:57 2013 +0000

    genid: Introduce again Windows generation ID device
    
    This device was removed due to change in specifications.
    Original patch written by Paul Durrant
    
    Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>
    Signed-off-by: Frediano Ziglio <frediano.ziglio@xxxxxxxxxx>
---
 tools/firmware/hvmloader/acpi/dsdt.asl |   25 +++++++++++++++++++++++++
 1 files changed, 25 insertions(+), 0 deletions(-)

diff --git a/tools/firmware/hvmloader/acpi/dsdt.asl 
b/tools/firmware/hvmloader/acpi/dsdt.asl
index 64896ce..247a8ad 100644
--- a/tools/firmware/hvmloader/acpi/dsdt.asl
+++ b/tools/firmware/hvmloader/acpi/dsdt.asl
@@ -397,6 +397,31 @@ DefinitionBlock ("DSDT.aml", "DSDT", 2, "Xen", "HVM", 0)
                         IRQNoFlags () {7}
                     })
                 }
+
+                Device(VGID) {
+                    Name(_HID, EisaId ("XEN0000"))
+                    Name(_UID, 0x00)
+                    Name(_CID, "VM_Gen_Counter")
+                    Name(_DDN, "VM_Gen_Counter")
+                    Method(_STA, 0, NotSerialized)
+                    {
+                        If(LEqual(\_SB.VGIA, 0x00000000)) {
+                            Return(0x00)
+                        } Else {
+                            Return(0x0F)
+                        }
+                    }
+                    Name(PKG, Package ()
+                    {
+                        0x00000000,
+                        0x00000000
+                    })
+                    Method(ADDR, 0, NotSerialized)
+                    {
+                        Store(\_SB.VGIA, Index(PKG, 0))
+                        Return(PKG)
+                    }
+                }
             }
         }
     }
--
generated by git-patchbot for /home/xen/git/xen.git#master

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