diff options
Diffstat (limited to 'OvmfPkg/PlatformPei/SmmRelocation.c')
-rw-r--r-- | OvmfPkg/PlatformPei/SmmRelocation.c | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/OvmfPkg/PlatformPei/SmmRelocation.c b/OvmfPkg/PlatformPei/SmmRelocation.c new file mode 100644 index 0000000..1151fc9 --- /dev/null +++ b/OvmfPkg/PlatformPei/SmmRelocation.c @@ -0,0 +1,80 @@ +/**@file
+ Install a callback to do smm relocation.
+
+ Copyright (c) 2024, Intel Corporation. All rights reserved.
+
+ SPDX-License-Identifier: BSD-2-Clause-Patent
+**/
+
+#include <Library/DebugLib.h>
+#include <Library/PeiServicesLib.h>
+#include <Library/SmmRelocationLib.h>
+#include <Ppi/MpServices2.h>
+#include "Platform.h"
+
+/**
+ Notification function called when EDKII_PEI_MP_SERVICES2_PPI becomes available.
+
+ @param[in] PeiServices Indirect reference to the PEI Services Table.
+ @param[in] NotifyDescriptor Address of the notification descriptor data
+ structure.
+ @param[in] Ppi Address of the PPI that was installed.
+
+ @return Status of the notification. The status code returned from this
+ function is ignored.
+**/
+STATIC
+EFI_STATUS
+EFIAPI
+OnMpServices2Available (
+ IN EFI_PEI_SERVICES **PeiServices,
+ IN EFI_PEI_NOTIFY_DESCRIPTOR *NotifyDescriptor,
+ IN VOID *Ppi
+ )
+{
+ EDKII_PEI_MP_SERVICES2_PPI *MpServices2;
+ EFI_STATUS Status;
+
+ DEBUG ((DEBUG_INFO, "%a: %a\n", gEfiCallerBaseName, __func__));
+
+ MpServices2 = Ppi;
+
+ //
+ // Smm Relocation Initialize.
+ //
+ Status = SmmRelocationInit (MpServices2);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_WARN, "OnMpServices2Available: Not able to execute Smm Relocation Init. Status: %r\n", Status));
+ }
+
+ return EFI_SUCCESS;
+}
+
+//
+// Notification object for registering the callback, for when
+// EDKII_PEI_MP_SERVICES2_PPI becomes available.
+//
+STATIC CONST EFI_PEI_NOTIFY_DESCRIPTOR mMpServices2Notify = {
+ EFI_PEI_PPI_DESCRIPTOR_NOTIFY_CALLBACK | // Flags
+ EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST,
+ &gEdkiiPeiMpServices2PpiGuid, // Guid
+ OnMpServices2Available // Notify
+};
+
+VOID
+RelocateSmBase (
+ VOID
+ )
+{
+ EFI_STATUS Status;
+
+ Status = PeiServicesNotifyPpi (&mMpServices2Notify);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((
+ DEBUG_ERROR,
+ "%a: failed to set up MP Services2 callback: %r\n",
+ __func__,
+ Status
+ ));
+ }
+}
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