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MpInitLib: Put SEV logic in separate file

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The patch does several simplifications:
1. Treat SwitchToRealProc as part of RendezvousFunnelProc.
   So the common logic in MpLib.c doesn't need to be aware of
   SwitchToRealProc.
   As a result, SwitchToRealSize/Offset are removed from
   MP_ASSEMBLY_ADDRESS_MAP.

2. Move SwitchToRealProc to AmdSev.nasm.
   All other assembly code in AmdSev.nasm is called through
   OneTimeCall.

Signed-off-by: Ray Ni <ray.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Tested-by: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Michael Roth <michael.roth@amd.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Ray Ni
2022-05-07 21:19:08 +08:00
committed by mergify[bot]
parent 76323c3145
commit b4d7b9d2b5
6 changed files with 161 additions and 172 deletions
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4
UefiCpuPkg/Library/MpInitLib/MpLib.h
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@@ -1,7 +1,7 @@
/** @file
Common header file for MP Initialize Library.
Copyright (c) 2016 - 2021, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2016 - 2022, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2020, AMD Inc. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -181,8 +181,6 @@ typedef struct {
UINT8 *RelocateApLoopFuncAddress;
UINTN RelocateApLoopFuncSize;
UINTN ModeTransitionOffset;
UINTN SwitchToRealSize;
UINTN SwitchToRealOffset;
UINTN SwitchToRealNoNxOffset;
UINTN SwitchToRealPM16ModeOffset;
UINTN SwitchToRealPM16ModeSize;