Applying [1] and [2] reveals that this also breaks non-x86 builds- the MEM_REGION_GPA/SLOT definitions are guarded behind an #ifdef __x86_64__, while the usages introduced here aren't. Should On Sun, Nov 5, 2023 at 8:35 AM Paolo Bonzini <pbonzini@xxxxxxxxxx> wrote: > > + test_invalid_memory_region_flags(); be #ifdef'd, perhaps? I'm not quite sure what the intent is. Side note: I wasn't able to get [2] to apply by copy-pasting the diff and trying "git apply", and that was after checking out the relevant commit. Eventually I just did it manually. If anyone can successfully apply it, please let me know what you did so I can see what I was doing wrong :) [1] https://lore.kernel.org/kvm/20231108233723.3380042-1-amoorthy@xxxxxxxxxx/ [2] https://lore.kernel.org/kvm/affca7a8-116e-4b0f-9edf-6cdc05ba65ca@xxxxxxxxxx/