pc: ACPI BIOS: make GPE.3 handle memory hotplug event on PIIX and Q35 machines

also make handler edge based to avoid losing events, the same as
it has been done for PCI and CPU hotplug handlers.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

diff --git a/hw/i386/acpi-dsdt.dsl b/hw/i386/acpi-dsdt.dsl
index 8ae933bc38e2da126a852cf5c95b8c7fe6fa2a46..3cc0ea0f9ab86410517781e6b70ee995f1078c30 100644 (file)
--- a/hw/i386/acpi-dsdt.dsl
+++ b/hw/i386/acpi-dsdt.dsl
@@ -314,6 +314,7 @@ DefinitionBlock (
 /****************************************************************
  * General purpose events
  ****************************************************************/
+    External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_SCAN_METHOD, MethodObj)
 
     Scope(\_GPE) {
         Name(_HID, "ACPI0006")
@@ -330,7 +331,9 @@ DefinitionBlock (
             // CPU hotplug event
             \_SB.PRSC()
         }
-        Method(_L03) {
+        Method(_E03) {
+            // Memory hotplug event
+            \_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_SCAN_METHOD()
         }
         Method(_L04) {
         }

diff --git a/hw/i386/q35-acpi-dsdt.dsl b/hw/i386/q35-acpi-dsdt.dsl
index fddc3b27ff7294c6b734dbad638ffd292da34a7f..8c3eae73bfd8f9b01e03edd96bcdc2857fb86425 100644 (file)
--- a/hw/i386/q35-acpi-dsdt.dsl
+++ b/hw/i386/q35-acpi-dsdt.dsl
@@ -410,6 +410,7 @@ DefinitionBlock (
 /****************************************************************
  * General purpose events
  ****************************************************************/
+    External(\_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_SCAN_METHOD, MethodObj)
 
     Scope(\_GPE) {
         Name(_HID, "ACPI0006")
@@ -422,7 +423,9 @@ DefinitionBlock (
             // CPU hotplug event
             \_SB.PRSC()
         }
-        Method(_L03) {
+        Method(_E03) {
+            // Memory hotplug event
+            \_SB.PCI0.MEMORY_HOPTLUG_DEVICE.MEMORY_SLOT_SCAN_METHOD()
         }
         Method(_L04) {
         }