X-Git-Url: https://git.proxmox.com/?a=blobdiff_plain;f=UefiCpuPkg%2FLibrary%2FMpInitLib%2FIa32%2FAmdSev.c;fp=UefiCpuPkg%2FLibrary%2FMpInitLib%2FIa32%2FAmdSev.c;h=c83144285b681eac58b9d971bfd64eab37c3c38f;hb=06544455d0d460ed18c8582121247bf53292d7e4;hp=0000000000000000000000000000000000000000;hpb=67484aed694e7d9dff4ae91df0afeff28898c68a;p=mirror_edk2.git

diff --git a/UefiCpuPkg/Library/MpInitLib/Ia32/AmdSev.c b/UefiCpuPkg/Library/MpInitLib/Ia32/AmdSev.c
new file mode 100644
index 0000000000..c83144285b
--- /dev/null
+++ b/UefiCpuPkg/Library/MpInitLib/Ia32/AmdSev.c
@@ -0,0 +1,70 @@
+/** @file
+
+  AMD SEV helper function.
+
+  Copyright (c) 2021, AMD Incorporated. All rights reserved.<BR>
+
+  SPDX-License-Identifier: BSD-2-Clause-Patent
+
+**/
+
+#include "MpLib.h"
+
+/**
+  Create an SEV-SNP AP save area (VMSA) for use in running the vCPU.
+
+  @param[in]  CpuMpData        Pointer to CPU MP Data
+  @param[in]  CpuData          Pointer to CPU AP Data
+  @param[in]  ApicId           APIC ID of the vCPU
+**/
+VOID
+SevSnpCreateSaveArea (
+  IN CPU_MP_DATA  *CpuMpData,
+  IN CPU_AP_DATA  *CpuData,
+  UINT32          ApicId
+  )
+{
+  //
+  // SEV-SNP is not support on 32-bit build.
+  //
+  ASSERT (FALSE);
+}
+
+/**
+  Create SEV-SNP APs.
+
+  @param[in]  CpuMpData        Pointer to CPU MP Data
+  @param[in]  ProcessorNumber  The handle number of specified processor
+                               (-1 for all APs)
+**/
+VOID
+SevSnpCreateAP (
+  IN CPU_MP_DATA  *CpuMpData,
+  IN INTN         ProcessorNumber
+  )
+{
+  //
+  // SEV-SNP is not support on 32-bit build.
+  //
+  ASSERT (FALSE);
+}
+
+/**
+  Issue RMPADJUST to adjust the VMSA attribute of an SEV-SNP page.
+
+  @param[in]  PageAddress
+  @param[in]  VmsaPage
+
+  @return  RMPADJUST return value
+**/
+UINT32
+SevSnpRmpAdjust (
+  IN  EFI_PHYSICAL_ADDRESS  PageAddress,
+  IN  BOOLEAN               VmsaPage
+  )
+{
+  //
+  // RMPADJUST is not supported in 32-bit mode
+  //
+  return RETURN_UNSUPPORTED;
+}