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| author | Ard Biesheuvel <ardb@kernel.org> | 2025-08-28 12:22:07 +0200 |
|---|---|---|
| committer | Borislav Petkov (AMD) <bp@alien8.de> | 2025-08-31 12:40:56 +0200 |
| commit | e349241b97a8b1169a4e90375159df4d22061f9a (patch) | |
| tree | 0880ed0ddbf3357d077c757b74c5d130e7baeb4d /tools/perf/scripts/python/stackcollapse.py | |
| parent | 7cb7b6de9cb90311a917d65c0228b6aa223dc456 (diff) | |
| download | kernel-e349241b97a8b1169a4e90375159df4d22061f9a.tar.gz | |
x86/sev: Run RMPADJUST on SVSM calling area page to test VMPL
Determining the VMPL at which the kernel runs involves performing a RMPADJUST
operation on an arbitrary page of memory, and observing whether it succeeds.
The use of boot_ghcb_page in the core kernel in this case is completely
arbitrary, but results in the need to provide a PIC alias for it. So use
boot_svsm_ca_page instead, which already needs this alias for other reasons.
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tom Lendacky <thomas.lendacky@amd.com>
Link: https://lore.kernel.org/20250828102202.1849035-28-ardb+git@google.com
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions