On Mon, May 8, 2023 at 10:28 AM Jim Mattson <jmattson@xxxxxxxxxx> wrote: > > On Sun, May 7, 2023 at 6:54 PM Xiaoyao Li <xiaoyao.li@xxxxxxxxx> wrote: > > > > On 5/5/2023 2:18 AM, Mingwei Zhang wrote: > > > Add MSR_IA32_TSX_CTRL into msrs_to_save[] to explicitly tell userspace to > > > save/restore the register value during migration. Missing this may cause > > > userspace that relies on KVM ioctl(KVM_GET_MSR_INDEX_LIST) fail to port the > > > value to the target VM. > > > > > > In addition, there is no need to add MSR_IA32_TSX_CTRL when > > > ARCH_CAP_TSX_CTRL_MSR is not supported in guest. So add the checking in > > > kvm_probe_msr_to_save(). > > > > > > Fixes: b07a5c53d42a ("KVM: vmx: use MSR_IA32_TSX_CTRL to hard-disable TSX on guest that lack it") > > > > I wonder it's the fix for this commit. > > > > Apart from this, > > > > Reviewed-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx> > > I concur. > > How about: > > Fixes: ea732b38b341 ("KVM: vmx: implement MSR_IA32_TSX_CTRL disable > RTM functionality") > > Reviewed-by: Jim Mattson <jmattson@xxxxxxxxxx> Will send a v3 with the update of the "Fixes"