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author | Michael Kubacki <michael.a.kubacki@intel.com> | 2019-04-12 06:46:02 +0800 |
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committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-07-28 01:43:16 +0000 |
commit | 9bedaec05b7b8ba9aee248361bb61a85a26726cb (patch) | |
tree | 7c839ee9dbbb28b077b4d656401aca2ff23aaae1 /CryptoPkg | |
parent | 1facb8fdef6389f390b66da6d8304f54cc93104a (diff) | |
download | edk2-9bedaec05b7b8ba9aee248361bb61a85a26726cb.tar.gz edk2-9bedaec05b7b8ba9aee248361bb61a85a26726cb.tar.bz2 edk2-9bedaec05b7b8ba9aee248361bb61a85a26726cb.zip |
MdeModulePkg/PeiCore: Enable T-RAM evacuation in PeiCore (CVE-2019-11098)
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1614
Introduces new changes to PeiCore to move the contents of temporary
RAM visible to the PeiCore to permanent memory. This expands on
pre-existing shadowing support in the PeiCore to perform the following
additional actions:
1. Migrate pointers in PPIs installed in PeiCore to the permanent
memory copy of PeiCore.
2. Copy all installed firmware volumes to permanent memory.
3. Relocate and fix up the PEIMs within the firmware volumes.
4. Convert all PPIs into the migrated firmware volume to the corresponding
PPI address in the permanent memory location.
This applies to PPIs and PEI notifications.
5. Convert all status code callbacks in the migrated firmware volume to
the corresponding address in the permanent memory location.
6. Update the FV HOB to the corresponding firmware volume in permanent
memory.
7. Use PcdMigrateTemporaryRamFirmwareVolumes to control if enable the
feature or not. when disable the PCD, the EvacuateTempRam() will
never be called.
The function control flow as below:
PeiCore()
DumpPpiList()
EvacuateTempRam()
ConvertPeiCorePpiPointers()
ConvertPpiPointersFv()
MigratePeimsInFv()
MigratePeim()
PeiGetPe32Data()
LoadAndRelocatePeCoffImageInPlace()
MigrateSecModulesInFv()
ConvertPpiPointersFv()
ConvertStatusCodeCallbacks()
ConvertFvHob()
RemoveFvHobsInTemporaryMemory()
DumpPpiList()
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Debkumar De <debkumar.de@intel.com>
Cc: Harry Han <harry.han@intel.com>
Cc: Catharine West <catharine.west@intel.com>
Signed-off-by: Michael Kubacki <michael.a.kubacki@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
Diffstat (limited to 'CryptoPkg')
0 files changed, 0 insertions, 0 deletions