x86/sev: Make the VMPL0 checking more straight forward

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Currently, the enforce_vmpl0() function uses a set argument when modifying
the VMPL1 permissions used to test for VMPL0. If the guest is not running
at VMPL0, the guest self-terminates.

The function is just a wrapper for a fixed RMPADJUST function. Eliminate
the function and perform the RMPADJUST directly.

No functional change.

Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/ed01ddf04bfb475596b24b634fd26cffaa85173a.1713974291.git.thomas.lendacky@amd.com

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Tom Lendacky 2024-04-24 10:57:59 -05:00 • committed by Borislav Petkov (AMD)

parent 88ed43d32b

commit e2f4c8c319

1 changed files with 14 additions and 21 deletions

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arch/x86/boot/compressed/sev.c

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