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OvmfPkg/Sec: Move SEV-ES SEC workarea definition to common header file 

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3108

In order to allow for the SEV-ES workarea to be used for other purposes
and by other files, move the definition into the BaseMemEncryptSevLib
header file, MemEncryptSevLib.h.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Message-Id: <07d66f3384bd54da97d540e89b9f3473a6d17231.1610045305.git.thomas.lendacky@amd.com>
This commit is contained in:
Tom Lendacky 2021-01-07 12:48:12 -06:00 committed by mergify[bot]
parent a91b700e38
commit b78de543d8
2 changed files with 17 additions and 5 deletions
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16
OvmfPkg/Include/Library/MemEncryptSevLib.h
View File

@ -2,7 +2,7 @@
Define Secure Encrypted Virtualization (SEV) base library helper function
Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
Copyright (c) 2017 - 2020, AMD Incorporated. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@ -13,6 +13,20 @@
#include <Base.h>
//
// Internal structure for holding SEV-ES information needed during SEC phase
// and valid only during SEC phase and early PEI during platform
// initialization.
//
// This structure is also used by assembler files:
// OvmfPkg/ResetVector/ResetVector.nasmb
// OvmfPkg/ResetVector/Ia32/PageTables64.asm
// any changes must stay in sync with its usage.
//
typedef struct _SEC_SEV_ES_WORK_AREA {
UINT8 SevEsEnabled;
} SEC_SEV_ES_WORK_AREA;
/**
Returns a boolean to indicate whether SEV-ES is enabled.

6
OvmfPkg/Sec/SecMain.c
View File

@ -3,6 +3,7 @@
Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>
(C) Copyright 2016 Hewlett Packard Enterprise Development LP<BR>
Copyright (c) 2020, Advanced Micro Devices, Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@ -25,6 +26,7 @@
#include <Library/ExtractGuidedSectionLib.h>
#include <Library/LocalApicLib.h>
#include <Library/CpuExceptionHandlerLib.h>
#include <Library/MemEncryptSevLib.h>
#include <Register/Amd/Ghcb.h>
#include <Register/Amd/Msr.h>
@ -37,10 +39,6 @@ typedef struct _SEC_IDT_TABLE {
IA32_IDT_GATE_DESCRIPTOR IdtTable[SEC_IDT_ENTRY_COUNT];
} SEC_IDT_TABLE;
typedef struct _SEC_SEV_ES_WORK_AREA {
UINT8 SevEsEnabled;
} SEC_SEV_ES_WORK_AREA;
VOID
EFIAPI
SecStartupPhase2 (