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CbSupportPei: prevent lower coreboot table from being overwritten

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Exclude the bottom 4kb from being included in System Memory HoB

Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
This commit is contained in:
ReddestDream
2017-05-03 00:13:28 -04:00
committed by Matt DeVillier
parent 0a8abc3c4d
commit 0f6978e314
1 changed files with 3 additions and 2 deletions
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5
CorebootModulePkg/CbSupportPei/CbSupportPei.c
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@ -261,8 +261,9 @@ CbPeiEntryPoint (
EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE | EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
), ),
(EFI_PHYSICAL_ADDRESS)(0), // Lower 640KB, except for first 4KB where the lower coreboot pointer ("LBIO") resides
(UINT64)(0xA0000) (EFI_PHYSICAL_ADDRESS)(0 + 0x1000),
(UINT64)(0xA0000 - 0x1000)
); );