audk/OvmfPkg/IntelTdx/TdxHelperLib
Min M Xu 852ae4cd80 OvmfPkg: Refactor MeaureFvImage
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=4243

MeasureFvImage once was implemented in PeilessStartupLib and it does
measurement and logging for Configuration FV (Cfv) image in one go,
using TpmMeasureAndLogData(). But it doesn't work in SEC.

This patch splits MeasureFvImage into 2 functions and implement them in
SecTdxHelperLib.
 - TdxHelperMeasureCfvImage
 - TdxHelperBuildGuidHobForTdxMeasurement

TdxHelperMeasureCfvImage measures the Cfv image and stores the hash value
in WorkArea. TdxHelperBuildGuidHobForTdxMeasurement builds GuidHob for the
measurement based on the hash value in WorkArea.

After these 2 functions are introduced, PeilessStartupLib should also be
updated:
 - Call these 2 functions instead of the MeasureFvImage
 - Delete the duplicated codes in PeilessStartupLib

Cc: Erdem Aktas <erdemaktas@google.com>
Cc: James Bottomley <jejb@linux.ibm.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Michael Roth <michael.roth@amd.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Signed-off-by: Min Xu <min.m.xu@intel.com>
2023-02-04 03:38:15 +00:00
..
SecTdxHelper.c OvmfPkg: Refactor MeaureFvImage 2023-02-04 03:38:15 +00:00
SecTdxHelperLib.inf OvmfPkg: Refactor MeasureHobList 2023-02-04 03:38:15 +00:00
TdxHelperLibNull.inf OvmfPkg/IntelTdx: Add TdxHelperLibNull 2023-02-04 03:38:15 +00:00
TdxHelperNull.c OvmfPkg/IntelTdx: Add TdxHelperLibNull 2023-02-04 03:38:15 +00:00
TdxMeasurementHob.c OvmfPkg: Refactor MeaureFvImage 2023-02-04 03:38:15 +00:00