On 4/16/2020 3:47 AM, Thomas Gleixner wrote:
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.
I'll correct it. Thanks! -Xiaoyao