Re: [RFC PATCH v2 0/9] KVM: Enable Nested Virt selftests

Hi Ganapat,

On Mon, May 12, 2025 at 03:52:42AM -0700, Ganapatrao Kulkarni wrote:

This patch series makes the selftest work with NV enabled. The guest code is run in vEL2 instead of EL1. We add a command line option to enable testing of NV. The NV tests are disabled by default.

Modified around 12 selftests in this series.

Thanks for sharing this, we sorely need testing for NV.

I haven't looked at these patches thoroughly but I have some overall feedback. What I'd like to see is that we force *all* KVM selftests to run in VHE EL2 without an opt-in/opt-out. The user had to boot their kernel with kvm-arm.mode=nested, so imposing NV testing on them feels reasonable.

Thanks, Oliver