提交 61a3f635 编写于 作者: I Igor Mammedov 提交者: Michael S. Tsirkin

pc: ACPI: expose PRST IO range via _CRS

.. so OSPM could notice resource conflict if there is any.
Signed-off-by: NIgor Mammedov <imammedo@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
上级 562e56a9
......@@ -16,6 +16,7 @@
/****************************************************************
* CPU hotplug
****************************************************************/
#define CPU_HOTPLUG_RESOURCE_DEVICE PRES
Scope(\_SB) {
/* Objects filled in by run-time generated SSDT */
......@@ -52,7 +53,8 @@ Scope(\_SB) {
Sleep(200)
}
OperationRegion(PRST, SystemIO, CPU_STATUS_BASE, 32)
#define CPU_STATUS_LEN 32
OperationRegion(PRST, SystemIO, CPU_STATUS_BASE, CPU_STATUS_LEN)
Field(PRST, ByteAcc, NoLock, Preserve) {
PRS, 256
}
......@@ -89,4 +91,14 @@ Scope(\_SB) {
Increment(Local0)
}
}
Device(CPU_HOTPLUG_RESOURCE_DEVICE) {
Name(_HID, "ACPI0004")
Name(_CRS, ResourceTemplate() {
IO(Decode16, CPU_STATUS_BASE, CPU_STATUS_BASE, 0, CPU_STATUS_LEN)
})
Name(_STA, 0xB) /* present, functioning, decoding, not shown in UI */
}
}
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