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| author | Will Deacon <will@kernel.org> | 2024-12-02 17:57:29 +0300 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2024-12-03 21:10:20 +0300 |
| commit | d44679fb954ffea961036ed1aeb7d65035f78489 (patch) | |
| tree | fab43124bb397ee70e13a7c5e3b2c1e368646539 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 8d09e2d569f6e34301387f24433b42062517ca85 (diff) | |
| download | linux-d44679fb954ffea961036ed1aeb7d65035f78489.tar.xz | |
drivers/virt: pkvm: Don't fail ioremap() call if MMIO_GUARD fails
Calling the MMIO_GUARD hypercall from guests which have not been
enrolled (e.g. because they are running without pvmfw) results in
-EINVAL being returned. In this case, MMIO_GUARD is not active
and so we can simply proceed with the normal ioremap() routine.
Don't fail ioremap() if MMIO_GUARD fails; instead WARN_ON_ONCE()
to highlight that the pvm environment is slightly wonky.
Fixes: 0f1269495800 ("drivers/virt: pkvm: Intercept ioremap using pKVM MMIO_GUARD hypercall")
Signed-off-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20241202145731.6422-2-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions