On 17/04/2018 10:39, Wanpeng Li wrote: > 2018-02-22 3:39 GMT+08:00 Tom Lendacky <thomas.lendacky@xxxxxxx>: >> The following series implements support within KVM for MSR-based features. >> The first patch creates the MSR-based feature framework used to retrieve >> the available MSR-based features. The second patch makes use of the >> framework to allow a guest to determine if the LFENCE instruction is >> serializing on AMD processors. > Is there a qemu patch for LFENCE instruction? No, not yet. Paolo