diff options
| -rw-r--r-- | OvmfPkg/AcpiS3SaveDxe/AcpiS3Save.c | 46 | ||||
| -rw-r--r-- | OvmfPkg/AcpiS3SaveDxe/AcpiS3SaveDxe.inf | 1 |
2 files changed, 47 insertions, 0 deletions
diff --git a/OvmfPkg/AcpiS3SaveDxe/AcpiS3Save.c b/OvmfPkg/AcpiS3SaveDxe/AcpiS3Save.c index f05764af8b..5eb33e0587 100644 --- a/OvmfPkg/AcpiS3SaveDxe/AcpiS3Save.c +++ b/OvmfPkg/AcpiS3SaveDxe/AcpiS3Save.c @@ -29,6 +29,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #include <Guid/AcpiVariableCompatibility.h>
#include <Guid/AcpiS3Context.h>
#include <Guid/Acpi.h>
+#include <Guid/EventGroup.h>
#include <Protocol/AcpiS3Save.h>
#include <Protocol/S3SaveState.h>
#include <Protocol/DxeSmmReadyToLock.h>
@@ -571,6 +572,40 @@ S3Ready ( }
/**
+ Callback function executed when the EndOfDxe event group is signaled.
+
+ @param[in] Event Event whose notification function is being invoked.
+ @param[in] Context The pointer to the notification function's context, which
+ is implementation-dependent.
+**/
+VOID
+EFIAPI
+OnEndOfDxe (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+
+ //
+ // Our S3Ready() function ignores both of its parameters, and always
+ // succeeds.
+ //
+ Status = S3Ready (
+ NULL, // This
+ NULL // LegacyMemoryAddress
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Close the event, deregistering the callback and freeing resources.
+ //
+ Status = gBS->CloseEvent (Event);
+ ASSERT_EFI_ERROR (Status);
+}
+
+
+/**
The Driver Entry Point.
The function is the driver Entry point which will produce AcpiS3SaveProtocol.
@@ -591,6 +626,7 @@ InstallAcpiS3Save ( )
{
EFI_STATUS Status;
+ EFI_EVENT EndOfDxeEvent;
if (!QemuFwCfgS3Enabled()) {
return EFI_LOAD_ERROR;
@@ -612,5 +648,15 @@ InstallAcpiS3Save ( NULL
);
ASSERT_EFI_ERROR (Status);
+
+ Status = gBS->CreateEventEx (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ OnEndOfDxe,
+ NULL, /* NotifyContext */
+ &gEfiEndOfDxeEventGroupGuid,
+ &EndOfDxeEvent
+ );
+ ASSERT_EFI_ERROR (Status);
return Status;
}
diff --git a/OvmfPkg/AcpiS3SaveDxe/AcpiS3SaveDxe.inf b/OvmfPkg/AcpiS3SaveDxe/AcpiS3SaveDxe.inf index ae56a2079c..81da2fb80c 100644 --- a/OvmfPkg/AcpiS3SaveDxe/AcpiS3SaveDxe.inf +++ b/OvmfPkg/AcpiS3SaveDxe/AcpiS3SaveDxe.inf @@ -58,6 +58,7 @@ gEfiAcpiS3ContextGuid # ALWAYS_CONSUMED
gEfiAcpi20TableGuid # ALWAYS_CONSUMED System Table
gEfiAcpi10TableGuid # ALWAYS_CONSUMED System Table
+ gEfiEndOfDxeEventGroupGuid ## CONSUMES ## Event
[Protocols]
gEfiAcpiS3SaveProtocolGuid # PROTOCOL ALWAYS_PRODUCED
|