On 12/2/22 07:09, Gerd Hoffmann wrote:
Writing to global variables changes the PEI firmware volume which in
turn screws up firmware volume measurements.  Fix OvmfPkg to avoid that,
for the most part by using the PlatformInfoHob instead.

Boot tested SEV, SEV-ES and SEV-SNP guests without issues. For the series:

Tested-by: Tom Lendacky <thomas.lenda...@amd.com>


Gerd Hoffmann (14):
   tools_def: remove GCC_IA32_CC_FLAGS/GCC_X64_CC_FLAGS
   tools_def: add -fno-omit-frame-pointer to GCC48_{IA32,X64}_CC_FLAGS
   OvmfPkg/PlatformPei: AmdSev: stop using mPlatformInfoHob
   OvmfPkg/PlatformPei: PeiFv: stop using mPlatformInfoHob
   OvmfPkg/PlatformPei Q35 SMM helpers: stop using mPlatformInfoHob
   OvmfPkg/PlatformPei: PeiMemory: stop using mPlatformInfoHob
   OvmfPkg/PlatformPei: MemTypeInfo: stop using mPlatformInfoHob
   OvmfPkg/PlatformPei: NoExec: stop using mPlatformInfoHob
   OvmfPkg/PlatformPei: Verification: stop using mPlatformInfoHob
   OvmfPkg/PlatformPei: remove mPlatformInfoHob
   OvmfPkg/PlatformPei: remove mFeatureControlValue
   OvmfPkg/DebugLibIoPort: use Rom version for PEI
   OvmfPkg/QemuFwCfgLib: rewrite fw_cfg probe
   OvmfPkg/QemuFwCfgLib: remove mQemuFwCfgSupported +
     mQemuFwCfgDmaSupported

  OvmfPkg/AmdSev/AmdSevX64.dsc                  |   4 +-
  OvmfPkg/Bhyve/BhyveX64.dsc                    |   4 +-
  OvmfPkg/Microvm/MicrovmX64.dsc                |   4 +-
  OvmfPkg/OvmfPkgIa32.dsc                       |   4 +-
  OvmfPkg/OvmfPkgIa32X64.dsc                    |   4 +-
  OvmfPkg/OvmfPkgX64.dsc                        |   4 +-
  .../PlatformRomDebugLibIoPort.inf             |   2 +-
  .../Library/QemuFwCfgLib/QemuFwCfgPeiLib.inf  |   5 +-
  OvmfPkg/Include/Library/PlatformInitLib.h     |   6 +
  OvmfPkg/PlatformPei/Platform.h                |  18 +--
  OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgPei.c   | 143 ++++++++++--------
  OvmfPkg/PlatformPei/AmdSev.c                  |  14 +-
  OvmfPkg/PlatformPei/FeatureControl.c          |  44 ++++--
  OvmfPkg/PlatformPei/Fv.c                      |   6 +-
  OvmfPkg/PlatformPei/MemDetect.c               |  56 +++----
  OvmfPkg/PlatformPei/MemTypeInfo.c             |   4 +-
  OvmfPkg/PlatformPei/Platform.c                |  92 ++++++-----
  BaseTools/Conf/tools_def.template             |   6 +-
  18 files changed, 232 insertions(+), 188 deletions(-)



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