mirror of https://github.com/acidanthera/audk.git
c7a7f09c1d
The purpose is to fix an issue where an exception occurs at the start of the DXE phase by applying the following patch series on INTEL-based systems. UefiCpuPkg: Refactor the logic for placing APs in HltLoop. UefiCpuPkg: Refactor the logic for placing APs in Mwait/Runloop. UefiCpuPkg: Create MpHandOff. UefiCpuPkg: ApWakeupFunction directly use CpuMpData. UefiCpuPkg: Eliminate the second INIT-SIPI-SIPI sequence. This series of patches makes changes to the way the APs are initialized and woken up. It removes the 2nd time INIT-SIPI-SIPI and introduces a special startup signal to wake up APs. These patches also create a new HOB identified by the mMpHandOffGuid, which stores only the minimum information required from the PEI phase to the DXE phase. As a result, the original HOB (mCpuInitMpLibHobGuid) is now used only as a global variable in the PEI phase and is no longer necessary in the DXE phase for INTEL-based systems. The AMD SEV-ES related code still relies on the OldCpuMpData in the DXE phase. This patch decouple the SEV-ES functionality of assigning CpuMpData to OldCpuMpData->NewCpuMpData from the Intel logic. Cc: Eric Dong <eric.dong@intel.com> Cc: Rahul Kumar <rahul1.kumar@intel.com> Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com> Reviewed-by: Ray Ni <ray.ni@intel.com> Signed-off-by: Yuanhao Xie <yuanhao.xie@intel.com> |
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| .. | ||
| Ia32 | ||
| X64 | ||
| AmdSev.c | ||
| DxeMpInitLib.inf | ||
| DxeMpInitLib.uni | ||
| DxeMpLib.c | ||
| Microcode.c | ||
| MpEqu.inc | ||
| MpHandOff.h | ||
| MpLib.c | ||
| MpLib.h | ||
| PeiMpInitLib.inf | ||
| PeiMpInitLib.uni | ||
| PeiMpLib.c | ||