Pcr bank change fix rebased #165
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Tcg2PhysicalPresenceLibSubmitRequestToPreOSFunction writes to TPM2 physical presence PPI provided by coreboot (a memory region preserved across reboots). CPU caches must be explicitly flushed prior to platform reboot or request written to PPI will be lost. Signed-off-by: Artur Kowalski <[email protected]>
Flush cache not only when placing request in PPI, but also after clearing old request from PPI. Signed-off-by: Artur Kowalski <[email protected]>
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Changes cherry-picked from #164 |
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Tested on VP4670. Since it was already review by me and merged to older EDK2 branch, merging it here as well. |
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Doesn't seem to help on NovaCustom V56 (SLB9672) |
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