The first three patches enable the PEI_CORE to report OVMF's temp
SEC/PEI stack and heap usage.
- This depends on the new fixed PCD "PcdInitValueInTempStack",
recently added for
<https://bugzilla.tianocore.org/show_bug.cgi?id=740>
("INIT_CAR_VALUE should be defined in a central location").
- Ard recently implemented the same in ArmPlatformPkg, for
<https://bugzilla.tianocore.org/show_bug.cgi?id=748> ("measure temp
SEC/PEI stack usage").
The last (fourth) patch adapts OVMF to the larger MtrrLib stack demand
that originates from commit 2bbd7e2fbd4b ("UefiCpuPkg/MtrrLib: Update
algorithm to calculate optimal settings", 2017-09-27). OVMF's temp RAM
size is restored to the historical / original 64KB.
This work is tracked in
<https://bugzilla.tianocore.org/show_bug.cgi?id=747> ("measure temp
SEC/PEI stack usage; grow temp SEC/PEI RAM"), with links to related
mailing list discussions.
Repo: https://github.com/lersek/edk2.git
Branch: temp_ram_tweaks
Cc: Ard Biesheuvel <[email protected]>
Cc: Jordan Justen <[email protected]>
Cc: Ruiyu Ni <[email protected]>
Thanks
Laszlo
Laszlo Ersek (4):
OvmfPkg/Sec/Ia32: free up EAX for other uses while setting up the
stack
OvmfPkg/Sec/Ia32: seed the temporary RAM with PcdInitValueInTempStack
OvmfPkg/Sec/X64: seed the temporary RAM with PcdInitValueInTempStack
OvmfPkg: restore temporary SEC/PEI RAM size to 64KB
OvmfPkg/OvmfPkgIa32.fdf | 2 +-
OvmfPkg/OvmfPkgIa32X64.fdf | 2 +-
OvmfPkg/OvmfPkgX64.fdf | 2 +-
OvmfPkg/Sec/SecMain.inf | 1 +
OvmfPkg/Sec/Ia32/SecEntry.nasm | 19 ++++++++++++++++---
OvmfPkg/Sec/X64/SecEntry.nasm | 15 +++++++++++++++
6 files changed, 35 insertions(+), 6 deletions(-)
--
2.14.1.3.gb7cf6e02401b
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