1 files changed, 74 insertions, 0 deletions
diff --git a/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmmProfileArch.c b/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmmProfileArch.c
new file mode 100644
index 00000000..67ad5ace
--- /dev/null
+++ b/src/VBox/Devices/EFI/Firmware/UefiCpuPkg/PiSmmCpuDxeSmm/Ia32/SmmProfileArch.c
@@ -0,0 +1,74 @@
+/** @file
+IA-32 processor specific functions to enable SMM profile.
+
+Copyright (c) 2012 - 2016, Intel Corporation. All rights reserved.<BR>
+SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "PiSmmCpuDxeSmm.h"
+#include "SmmProfileInternal.h"
+
+/**
+  Create SMM page table for S3 path.
+
+**/
+VOID
+InitSmmS3Cr3 (
+  VOID
+  )
+{
+  mSmmS3ResumeState->SmmS3Cr3 = Gen4GPageTable (TRUE);
+
+  return ;
+}
+
+/**
+  Allocate pages for creating 4KB-page based on 2MB-page when page fault happens.
+  32-bit firmware does not need it.
+
+**/
+VOID
+InitPagesForPFHandler (
+  VOID
+  )
+{
+}
+
+/**
+  Update page table to map the memory correctly in order to make the instruction
+  which caused page fault execute successfully. And it also save the original page
+  table to be restored in single-step exception. 32-bit firmware does not need it.
+
+  @param  PageTable           PageTable Address.
+  @param  PFAddress           The memory address which caused page fault exception.
+  @param  CpuIndex            The index of the processor.
+  @param  ErrorCode           The Error code of exception.
+  @param  IsValidPFAddress    The flag indicates if SMM profile data need be added.
+
+**/
+VOID
+RestorePageTableAbove4G (
+  UINT64        *PageTable,
+  UINT64        PFAddress,
+  UINTN         CpuIndex,
+  UINTN         ErrorCode,
+  BOOLEAN       *IsValidPFAddress
+  )
+{
+}
+
+/**
+  Clear TF in FLAGS.
+
+  @param  SystemContext    A pointer to the processor context when
+                           the interrupt occurred on the processor.
+
+**/
+VOID
+ClearTrapFlag (
+  IN OUT EFI_SYSTEM_CONTEXT   SystemContext
+  )
+{
+  SystemContext.SystemContextIa32->Eflags &= (UINTN) ~BIT8;
+}