[Qemu-devel] [PATCH v2 31/31] pc: ACPI BIOS: make GPE.3 handle memory hotplug event on PIIX and Q35 machines

[Igor Mammedov]

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 <address@hidden>
---
v2:
 * use memory hotplug crtl located under PCI0
---
 hw/i386/acpi-dsdt.dsl     |    5 ++++-
 hw/i386/q35-acpi-dsdt.dsl |    5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/hw/i386/acpi-dsdt.dsl b/hw/i386/acpi-dsdt.dsl
index f93353f..e54045e 100644
--- 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 3838fc7..a0d289c 100644
--- 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) {
         }
-- 
1.7.1