KVM: selftests: Avoid infinite loop in hyperv_features when invtsc is missing

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[ Upstream commit 8ad4855273 ]

When X86_FEATURE_INVTSC is missing, guest_test_msrs_access() was supposed
to skip testing dependent Hyper-V invariant TSC feature. Unfortunately,
'continue' does not lead to that as stage is not incremented. Moreover,
'vm' allocated with vm_create_with_one_vcpu() is not freed and the test
runs out of available file descriptors very quickly.

Fixes: bd827bd775 ("KVM: selftests: Test Hyper-V invariant TSC control")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Link: https://lore.kernel.org/r/20240129085847.2674082-1-vkuznets@redhat.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Vitaly Kuznetsov 2024-01-29 09:58:46 +01:00 • committed by Greg Kroah-Hartman

parent 03aee9284d

commit 267f7b04ef

1 changed files with 5 additions and 4 deletions

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tools/testing/selftests/kvm/x86_64/hyperv_features.c

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