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| author | Quentin Perret <[email protected]> | 2025-04-16 16:08:59 +0000 |
|---|---|---|
| committer | Marc Zyngier <[email protected]> | 2025-05-06 08:56:18 +0000 |
| commit | 6c2d4c319c7db7be883428ae1161502f3f690e60 (patch) | |
| tree | fc080e78c25cc6819b2505ab4651917975689eb5 /rust/helpers/task.c | |
| parent | KVM: arm64: Don't WARN from __pkvm_host_share_guest() (diff) | |
| download | kernel-6c2d4c319c7db7be883428ae1161502f3f690e60.tar.gz kernel-6c2d4c319c7db7be883428ae1161502f3f690e60.zip | |
KVM: arm64: Selftest for pKVM transitions
We have recently found a bug [1] in the pKVM memory ownership
transitions by code inspection, but it could have been caught with a
test.
Introduce a boot-time selftest exercising all the known pKVM memory
transitions and importantly checks the rejection of illegal transitions.
The new test is hidden behind a new Kconfig option separate from
CONFIG_EL2_NVHE_DEBUG on purpose as that has side effects on the
transition checks ([1] doesn't reproduce with EL2 debug enabled).
[1] https://lore.kernel.org/kvmarm/[email protected]/
Suggested-by: Will Deacon <[email protected]>
Signed-off-by: Quentin Perret <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Marc Zyngier <[email protected]>
Diffstat (limited to 'rust/helpers/task.c')
0 files changed, 0 insertions, 0 deletions