[SeaBIOS] [PATCH] Add pvevent device driver
Hu Tao
hutao at cn.fujitsu.com
Thu Mar 14 09:48:47 CET 2013
pvevent device is used to notify host(qemu) when guest panic
happens.
ref: http://lists.nongnu.org/archive/html/qemu-devel/2013-03/msg02293.html
Signed-off-by: Hu Tao <hutao at cn.fujitsu.com>
---
src/acpi-dsdt-isa.dsl | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/src/acpi-dsdt-isa.dsl b/src/acpi-dsdt-isa.dsl
index 23761db..d083245 100644
--- a/src/acpi-dsdt-isa.dsl
+++ b/src/acpi-dsdt-isa.dsl
@@ -99,4 +99,34 @@ Scope(\_SB.PCI0.ISA) {
IRQNoFlags() { 3 }
})
}
+
+ Device(PEVT) {
+ Name(_HID, "MSFT0001")
+ OperationRegion(PEOR, SystemIO, 0x0505, 0x01)
+ Field(PEOR, ByteAcc, NoLock, Preserve) {
+ PEPT, 8,
+ }
+
+ Method(_STA, 0, NotSerialized) {
+ Store(PEPT, Local0)
+ If (LEqual(Local0, Zero)) {
+ Return (0x00)
+ } Else {
+ Return (0x0F)
+ }
+ }
+
+ Method(RDPT, 0, NotSerialized) {
+ Store(PEPT, Local0)
+ Return (Local0)
+ }
+
+ Method(WRPT, 1, NotSerialized) {
+ Store(Arg0, PEPT)
+ }
+
+ Name(_CRS, ResourceTemplate() {
+ IO(Decode16, 0x0505, 0x0505, 0x01, 0x01)
+ })
+ }
}
--
1.8.1.4
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