diff options
| author | Igor Mammedov <imammedo@redhat.com> | 2014-01-09 17:36:37 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2014-01-26 13:11:44 +0200 |
| commit | 61a3f63560ccd2b5e8c9134e9213a1cff36f26bf (patch) | |
| tree | c7bef41880d8296d926df4eade314816ead433ca /hw | |
| parent | 562e56a9f8e627b2a4ef60037507361ce3cb4e6d (diff) | |
pc: ACPI: expose PRST IO range via _CRS
.. so OSPM could notice resource conflict if there is any.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/i386/acpi-dsdt-cpu-hotplug.dsl | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/hw/i386/acpi-dsdt-cpu-hotplug.dsl b/hw/i386/acpi-dsdt-cpu-hotplug.dsl index 1dfbb4f086..f91eafd008 100644 --- a/hw/i386/acpi-dsdt-cpu-hotplug.dsl +++ b/hw/i386/acpi-dsdt-cpu-hotplug.dsl @@ -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 */ + } } |