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OvmfPkg/ResetVector: add 5-level paging support

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Add macros to check for 5-level paging and gigabyte page support.
Enable 5-level paging for the non-confidential-computing case.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20240301074402.98625-7-kraxel@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Oliver Steffen <osteffen@redhat.com>
Cc: Michael Roth <michael.roth@amd.com>
Cc: Erdem Aktas <erdemaktas@google.com>
Cc: Min Xu <min.m.xu@intel.com>
Cc: Ard Biesheuvel <ardb+tianocore@kernel.org>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
[lersek@redhat.com: turn the "Cc:" message headers from Gerd's on-list
 posting into "Cc:" tags in the commit message, in order to pacify
 "PatchCheck.py"]
This commit is contained in:
Gerd Hoffmann
2024-03-01 08:43:58 +01:00
committed by mergify[bot]
parent e3bd782373
commit 49b7faba1d
3 changed files with 102 additions and 0 deletions
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OvmfPkg/ResetVector/ResetVector.nasmb
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@@ -53,6 +53,7 @@
%define WORK_AREA_GUEST_TYPE (FixedPcdGet32 (PcdOvmfWorkAreaBase))
%define PT_ADDR(Offset) (FixedPcdGet32 (PcdOvmfSecPageTablesBase) + (Offset))
%define PG_5_LEVEL (FixedPcdGetBool (PcdUse5LevelPageTable))
%define GHCB_PT_ADDR (FixedPcdGet32 (PcdOvmfSecGhcbPageTableBase))
%define GHCB_BASE (FixedPcdGet32 (PcdOvmfSecGhcbBase))