AVX KVM Xsave issue

[abmerop]

AVX KVM Xsave issue

[abmerop]

@mattsinc @v-ramadas These are the notes I took when diagnosing this issue. I thought they might be helpful

[mattsinc]

@mattsinc @v-ramadas These are the notes I took when diagnosing this issue. I thought they might be helpful

Thanks!

[abmerop]

FYI: @nmosier pointed out to me via email that the XCR registers aren't being checkpointed. I attempted a hacky workaround to set XCR0 to the pre-checkpoint value but unfortunately the error persists, so while that is something that needs to be implemented, there is more work to be done still.