MSR_AMD64_LS_CFG
if (!rdmsrq_safe(MSR_AMD64_LS_CFG, &x86_amd_ls_cfg_base)) {
msr_set_bit(MSR_AMD64_LS_CFG, 15);
wrmsrq(MSR_AMD64_LS_CFG, msrval);
if (!rdmsrq_safe(MSR_AMD64_LS_CFG, &x86_amd_ls_cfg_base)) {
wrmsrq(MSR_AMD64_LS_CFG, msr);
wrmsrq(MSR_AMD64_LS_CFG, msr);
wrmsrq(MSR_AMD64_LS_CFG, msr);
wrmsrq(MSR_AMD64_LS_CFG, msr);
{ MSR_AMD64_LS_CFG, X86_FEATURE_LS_CFG_SSBD },