Re: [PATCH v3 7/7] selftests: KVM: Add test case for MMIO during vectoring

KVM: selftests:

On Tue, Dec 17, 2024, Ivan Orlov wrote:

Extend the 'set_memory_region_test' with a test case which covers the MMIO during vectoring error handling. The test case

Probably a good idea to explicitly state this is x86-only (hard to see that from the diff alone).

1. Sets an IDT descriptor base to point to an MMIO address
2. Generates a #GP in the guest
3. Verifies that we got a correct exit reason and suberror code

No "we". It's very specifically userspace that needs to see the exit.

4. Verifies that we got a corrent reported GPA in internal.data[3]

s/corrent/correct?

And #4 can be combined with #3:

3) Verifies userspace gets the correct exit reason, suberror code, and GPA in internal.data[3]