Xiaoyao Li <xiaoyao.li@xxxxxxxxx> writes:
> Due to the fact that TEST_CTRL MSR is per-core scope, i.e., the sibling
> threads in the same physical CPU core share the same MSR, only
> advertising feature split lock detection to guest when SMT is disabled
> or unsupported, for simplicitly.
That's not for simplicity. It's for correctness because you cannot
provide consistent state to a guest.
Thanks,
tglx
