audk/MpInitLib at 3323359a811a597b8ee045638c5addd10444402c - audk

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History

Lendacky, Thomas via groups.io 3323359a81 UefiCpuPkg/MpInitLib: Reuse VMSA allocation to avoid unreserved allocation

https://bugzilla.tianocore.org/show_bug.cgi?id=4353

When parking the APs on exiting from UEFI, a new page allocation is made.
This allocation, however, does not end up being marked reserved in the
memory map supplied to the OS. To avoid this, re-use the VMSA by clearing
the VMSA RMP flag, updating the page contents and re-setting the VMSA RMP
flag.

Fixes: 06544455d0d4 ("UefiCpuPkg/MpInitLib: Use SEV-SNP AP Creation ...")
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Ray Ni <ray.ni@intel.com>

2023-04-01 03:15:51 +00:00

Ia32

UefiCpuPkg: Put APs in 64 bit mode before handoff to OS.

2023-03-07 08:14:59 +00:00

X64

UefiCpuPkg/MpInitLib: Reuse VMSA allocation to avoid unreserved allocation

2023-04-01 03:15:51 +00:00

AmdSev.c

OvmfPkg/UefiCpuPkg: Add CcExit prefix to the APIs of CcExitLib

2022-11-14 04:55:34 +00:00

DxeMpInitLib.inf

UefiCpuPkg: Remove UefiCpuLib from module INFs.