Messages in this thread | | | Subject | Re: [PATCH v8 4/4] kvm: vmx: virtualize split lock detection | From | Xiaoyao Li <> | Date | Thu, 16 Apr 2020 10:12:26 +0800 |
| |
On 4/16/2020 3:47 AM, Thomas Gleixner wrote: > Xiaoyao Li <xiaoyao.li@intel.com> 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
| |