[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen stable-4.12] xen/spec-ctrl: Speculative mitigation facilities report wrong status
commit d04466fae19281d35ffcf06f1d7cdd7bb561d902 Author: James Wang <jnwang@xxxxxxxx> AuthorDate: Mon Sep 23 14:16:35 2019 +0200 Commit: Jan Beulich <jbeulich@xxxxxxxx> CommitDate: Mon Sep 23 14:16:35 2019 +0200 xen/spec-ctrl: Speculative mitigation facilities report wrong status Booting with spec-ctrl=0 results in Xen printing "None MD_CLEAR". (XEN) Support for HVM VMs: None MD_CLEAR (XEN) Support for PV VMs: None MD_CLEAR Add a check about X86_FEATURE_MD_CLEAR to avoid to print "None". Signed-off-by: James Wang <jnwang@xxxxxxxx> Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> master commit: 2adc580bd59f5c3034fd6ecacd5748678373f17a master date: 2019-07-31 14:53:13 +0100 --- xen/arch/x86/spec_ctrl.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/xen/arch/x86/spec_ctrl.c b/xen/arch/x86/spec_ctrl.c index 49f355cf91..b37d40e643 100644 --- a/xen/arch/x86/spec_ctrl.c +++ b/xen/arch/x86/spec_ctrl.c @@ -360,6 +360,7 @@ static void __init print_details(enum ind_thunk thunk, uint64_t caps) printk(" Support for HVM VMs:%s%s%s%s%s\n", (boot_cpu_has(X86_FEATURE_SC_MSR_HVM) || boot_cpu_has(X86_FEATURE_SC_RSB_HVM) || + boot_cpu_has(X86_FEATURE_MD_CLEAR) || opt_eager_fpu) ? "" : " None", boot_cpu_has(X86_FEATURE_SC_MSR_HVM) ? " MSR_SPEC_CTRL" : "", boot_cpu_has(X86_FEATURE_SC_RSB_HVM) ? " RSB" : "", @@ -371,6 +372,7 @@ static void __init print_details(enum ind_thunk thunk, uint64_t caps) printk(" Support for PV VMs:%s%s%s%s%s\n", (boot_cpu_has(X86_FEATURE_SC_MSR_PV) || boot_cpu_has(X86_FEATURE_SC_RSB_PV) || + boot_cpu_has(X86_FEATURE_MD_CLEAR) || opt_eager_fpu) ? "" : " None", boot_cpu_has(X86_FEATURE_SC_MSR_PV) ? " MSR_SPEC_CTRL" : "", boot_cpu_has(X86_FEATURE_SC_RSB_PV) ? " RSB" : "", -- generated by git-patchbot for /home/xen/git/xen.git#stable-4.12 _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxxxxxxxxx https://lists.xenproject.org/xen-changelog
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |