On Tue, Jan 23, 2024 at 06:41:45PM -0800, Yang Weijiang wrote: >From: Sean Christopherson <seanjc@xxxxxxxxxx> > >Add MSR_IA32_XSS to list of MSRs reported to userspace if supported_xss >is non-zero, i.e. KVM supports at least one XSS based feature. > >Before enabling CET virtualization series, guest IA32_MSR_XSS is >guaranteed to be 0, i.e., XSAVES/XRSTORS is executed in non-root mode >with XSS == 0, which equals to the effect of XSAVE/XRSTOR. > >Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx> >Signed-off-by: Yang Weijiang <weijiang.yang@xxxxxxxxx> >Reviewed-by: Maxim Levitsky <mlevitsk@xxxxxxxxxx> Reviewed-by: Chao Gao <chao.gao@xxxxxxxxx>
