mirror of https://github.com/acidanthera/audk.git
6f17bd5eaf
Previously, when PEI was 32-bit and DXE was 64-bit, S3 resume code had to set or change the CR3 register before executing 64-bit code. However, with both PEI and DXE now may being 64-bit, this modification is unnecessary as PEI already utilizes sufficiently large page tables. Additionally, there is a bug in the current implementation where the changed CR3 during S3 resume could map only below 4G MMIO, which could lead to issues if end of PEI notify attempts to access above 4G. Overall, skipping the CR3 modification in S3Resume when PEI is 64-bit can fix the bug and also avoid unnecessary logic. Signed-off-by: Zhiguang Liu <zhiguang.liu@intel.com> |
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| .. | ||
| Ia32 | ||
| X64 | ||
| S3Resume.c | ||
| S3Resume2Pei.inf | ||
| S3Resume2Pei.uni | ||
| S3Resume2PeiExtra.uni | ||