Re: [PATCH v3] kselftest: kvm/arm64: Skip tests if we can't create a vgic-v3

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On Wed, Jan 26, 2022 at 02:52:42PM +0000, Mark Brown wrote:
> The arch_timer and vgic_irq kselftests assume that they can create a
> vgic-v3, using the library function vgic_v3_setup() which aborts with a
> test failure if it is not possible to do so. Since vgic-v3 can only be
> instantiated on systems where the host has GICv3 this leads to false
> positives on older systems where that is not the case.
> 
> Fix this by changing vgic_v3_setup() to return an error if the vgic can't
> be instantiated and have the callers skip if this happens. We could also
> exit flagging a skip in vgic_v3_setup() but this would prevent future test
> cases conditionally deciding which GIC to use or generally doing more
> complex output.
> 
> Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
> ---
> 
> v3:
>  - Use custom print_skip() helper.
>  - Use internal version of _kvm_create_device.
> v2:
>  - The test for being able to create the GIC doesn't actually
>    instantiate it, add a call doing so in that case.
> 
>  tools/testing/selftests/kvm/aarch64/arch_timer.c | 7 ++++++-
>  tools/testing/selftests/kvm/aarch64/vgic_irq.c   | 4 ++++
>  tools/testing/selftests/kvm/lib/aarch64/vgic.c   | 4 +++-
>  3 files changed, 13 insertions(+), 2 deletions(-)
>

 
Reviewed-by: Andrew Jones <drjones@xxxxxxxxxx>

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