KVM: selftests: Add test for uaccesses to non-existent vgic-v2 CPUIF

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[ Upstream commit 160933e330 ]

Assert that accesses to a non-existent vgic-v2 CPU interface
consistently fail across the various KVM device attr ioctls. This also
serves as a regression test for a bug wherein KVM hits a NULL
dereference when the CPUID specified in the ioctl is invalid.

Note that there is no need to print the observed errno, as TEST_ASSERT()
will take care of it.

Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240424173959.3776798-3-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Oliver Upton 2024-04-24 17:39:59 +00:00 • committed by Greg Kroah-Hartman

parent b3c8774eb2

commit ce4e200f37

1 changed files with 50 additions and 0 deletions

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tools/testing/selftests/kvm/aarch64/vgic_init.c

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