[PATCH V6 0/3] Rename VmgExitLib to CcExitLib

["Min Xu" <min.m.xu@intel.com>]

BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4123

VmgExitLib once was designed to provide interfaces to support #VC handler
and issue VMGEXIT instruction. After TDVF (enable TDX feature in OVMF) is
introduced, this library is updated to support #VE as well. Now the name
of VmgExitLib cannot reflect what the lib does.

This patch-set renames VmgExitLib to CcExitLib (Cc means Confidential
Computing). This is simple renaming and there is no logic changes. Then
APIs defined in CcExitLib.h are added with a CcExit prefix. This is to
make the name more meaningful.

Please to be noted, changing the name of VmgExitLib to CcExitLib is a
non-backwards compatible change from a platform DSC file perspective for
downstream consumers. So for downstream platform below changes should
be applied:
1. For DSC files:
- VmgExitLib|OvmfPkg/Library/VmgExitLib/SecVmgExitLib.inf =>
  CcExitLib|OvmfPkg/Library/CcExitLib/SecCcExitLib.inf

- VmgExitLib|UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.inf =>
  CcExitLib|UefiCpuPkg/Library/CcExitLibNull/CcExitLibNull.inf

- VmgExitLib|OvmfPkg/Library/VmgExitLib/VmgExitLib.inf =>
  CcExitLib|OvmfPkg/Library/CcExitLib/CcExitLib.inf

2. For INF files:
- VmgExitLib => CcExitLib

3. For Header files
- #include <Library/VmgExitLib.h> => #include <Library/CcExitLib.h>

4. For C files
- Replace the APIs defined in the VmgExitLib.h with the ones defined in
  CcExitLib.h. The old name is renamed by adding a prefix (CcExit).
  For example VmgInit is renamed as CcExitVmgInit.

Code: https://github.com/mxu9/edk2/tree/CcExitLib.v5

v6 changes:
 - Fix a typo in patch0@v5.
 - No other changes from v5. So the code is same as v5.

v5 changes:
 - Rebased the code base to c17c3c24d8.
 - Add instructions in patch#0 on what updates to a downstream
   platform DSC.

v4 changes:
 - The previous versions of the patch-set are to first duplicate a new
   CcExitLib then delete the old VmgExitLib. According to this comments
   https://edk2.groups.io/g/devel/message/96019 it suggests renaming in
   a single patch is better.
 - Lib APIs are added with CcExit prefix, not CcExitLib prefix.

v3 changes:
 - Rename CcExitHandleVc / CcExitHandleVe to
   CcExitLibHandleVc / CcExitLibHandleVe to make the nameing consistent.
 - Update the CcExitLib to merge the patch eff44c008d99
  (OvmfPkg/VmgExitLig: HALT on #VE when access to private memory).
 
v2 changes:
 - Patch #3 is added to import CcExitLib in OvmfPkg's *.dsc. This is to
   prevent the building from being broken in the following patches.

Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Brijesh Singh <brijesh.singh@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Guo Dong <guo.dong@intel.com>
Cc: Sean Rhodes <sean@starlabs.systems>
Cc: James Lu <james.lu@intel.com>
Cc: Gua Guo <gua.guo@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Signed-off-by: Min Xu <min.m.xu@intel.com>

Min M Xu (3):
  OvmfPkg/UefiCpuPkg/UefiPayloadPkg: Rename VmgExitLib to CcExitLib
  OvmfPkg/UefiCpuPkg: Add CcExit prefix to the APIs of CcExitLib
  Maintainers: Update the VmgExitLib to CcExitLib

 Maintainers.txt                               |   2 +-
 OvmfPkg/AmdSev/AmdSevX64.dsc                  |   4 +-
 OvmfPkg/Bhyve/BhyveX64.dsc                    |   2 +-
 OvmfPkg/CloudHv/CloudHvX64.dsc                |   6 +-
 OvmfPkg/IntelTdx/IntelTdxX64.dsc              |   4 +-
 .../DxeMemEncryptSevLib.inf                   |   2 +-
 .../PeiMemEncryptSevLib.inf                   |   2 +-
 .../SecMemEncryptSevLib.inf                   |   2 +-
 .../X64/SnpPageStateChangeInternal.c          |  10 +-
 .../VmgExitLib.c => CcExitLib/CcExitLib.c}    |  23 ++--
 .../CcExitLib.inf}                            |  17 +--
 .../CcExitTd.h}                               |   4 +-
 .../CcExitVcHandler.c}                        | 129 +++++++++---------
 .../CcExitVcHandler.h}                        |   6 +-
 .../CcExitVeHandler.c}                        |   6 +-
 .../PeiDxeCcExitVcHandler.c}                  |   6 +-
 .../SecCcExitLib.inf}                         |  14 +-
 .../SecCcExitVcHandler.c}                     |   6 +-
 .../X64/TdVmcallCpuid.nasm                    |   0
 OvmfPkg/Microvm/MicrovmX64.dsc                |   4 +-
 OvmfPkg/OvmfPkgIa32.dsc                       |   4 +-
 OvmfPkg/OvmfPkgIa32X64.dsc                    |   4 +-
 OvmfPkg/OvmfPkgX64.dsc                        |   6 +-
 OvmfPkg/OvmfXen.dsc                           |   2 +-
 OvmfPkg/PlatformPei/AmdSev.c                  |  10 +-
 OvmfPkg/PlatformPei/PlatformPei.inf           |   2 +-
 .../FvbServicesRuntimeDxe.inf                 |   2 +-
 .../QemuFlashDxe.c                            |  10 +-
 .../Library/{VmgExitLib.h => CcExitLib.h}     |  29 ++--
 .../CcExitLibNull.c}                          |  47 +++++--
 .../CcExitLibNull.inf}                        |  12 +-
 .../Library/CcExitLibNull/CcExitLibNull.uni   |  14 ++
 .../DxeCpuExceptionHandlerLib.inf             |   2 +-
 .../PeiCpuExceptionHandlerLib.inf             |   2 +-
 .../PeiDxeSmmCpuException.c                   |   6 +-
 .../SecPeiCpuException.c                      |   6 +-
 .../SecPeiCpuExceptionHandlerLib.inf          |   2 +-
 .../SmmCpuExceptionHandlerLib.inf             |   2 +-
 .../Xcode5SecPeiCpuExceptionHandlerLib.inf    |   2 +-
 UefiCpuPkg/Library/MpInitLib/AmdSev.c         |  10 +-
 UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf |   2 +-
 UefiCpuPkg/Library/MpInitLib/DxeMpLib.c       |   8 +-
 UefiCpuPkg/Library/MpInitLib/MpLib.c          |   2 +-
 UefiCpuPkg/Library/MpInitLib/PeiMpInitLib.inf |   2 +-
 UefiCpuPkg/Library/MpInitLib/X64/AmdSev.c     |  10 +-
 .../Library/VmgExitLibNull/VmTdExitNull.c     |  38 ------
 .../Library/VmgExitLibNull/VmgExitLibNull.uni |  15 --
 UefiCpuPkg/UefiCpuPkg.dec                     |   4 +-
 UefiCpuPkg/UefiCpuPkg.dsc                     |   4 +-
 UefiPayloadPkg/UefiPayloadPkg.dsc             |   2 +-
 50 files changed, 252 insertions(+), 258 deletions(-)
 rename OvmfPkg/Library/{VmgExitLib/VmgExitLib.c => CcExitLib/CcExitLib.c} (89%)
 rename OvmfPkg/Library/{VmgExitLib/VmgExitLib.inf => CcExitLib/CcExitLib.inf} (66%)
 rename OvmfPkg/Library/{VmgExitLib/VmTdExitHandler.h => CcExitLib/CcExitTd.h} (86%)
 rename OvmfPkg/Library/{VmgExitLib/VmgExitVcHandler.c => CcExitLib/CcExitVcHandler.c} (90%)
 rename OvmfPkg/Library/{VmgExitLib/VmgExitVcHandler.h => CcExitLib/CcExitVcHandler.h} (89%)
 rename OvmfPkg/Library/{VmgExitLib/VmTdExitVeHandler.c => CcExitLib/CcExitVeHandler.c} (95%)
 rename OvmfPkg/Library/{VmgExitLib/PeiDxeVmgExitVcHandler.c => CcExitLib/PeiDxeCcExitVcHandler.c} (93%)
 rename OvmfPkg/Library/{VmgExitLib/SecVmgExitLib.inf => CcExitLib/SecCcExitLib.inf} (79%)
 rename OvmfPkg/Library/{VmgExitLib/SecVmgExitVcHandler.c => CcExitLib/SecCcExitVcHandler.c} (93%)
 rename OvmfPkg/Library/{VmgExitLib => CcExitLib}/X64/TdVmcallCpuid.nasm (100%)
 rename UefiCpuPkg/Include/Library/{VmgExitLib.h => CcExitLib.h} (87%)
 rename UefiCpuPkg/Library/{VmgExitLibNull/VmgExitLibNull.c => CcExitLibNull/CcExitLibNull.c} (76%)
 rename UefiCpuPkg/Library/{VmgExitLibNull/VmgExitLibNull.inf => CcExitLibNull/CcExitLibNull.inf} (60%)
 create mode 100644 UefiCpuPkg/Library/CcExitLibNull/CcExitLibNull.uni
 delete mode 100644 UefiCpuPkg/Library/VmgExitLibNull/VmTdExitNull.c
 delete mode 100644 UefiCpuPkg/Library/VmgExitLibNull/VmgExitLibNull.uni

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2.29.2.windows.2