Message ID | 1e00dc93-e711-9070-1da0-1d4243753a8e@suse.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | x86: "spec-ctrl=no-xen" should also disable branch hardening | expand |
On 19/02/2020 08:12, Jan Beulich wrote: > This is controlling Xen behavior alone, after all. > > Reported-by: Jin Nan Wang <jnwang@suse.com> > Signed-off-by: Jan Beulich <jbeulich@suse.com> Acked-by: Andrew Cooper <andrew.cooper3@citrix.com>
--- a/xen/arch/x86/spec_ctrl.c +++ b/xen/arch/x86/spec_ctrl.c @@ -98,8 +98,6 @@ static int __init parse_spec_ctrl(const if ( opt_pv_l1tf_domu < 0 ) opt_pv_l1tf_domu = 0; - opt_branch_harden = false; - if ( opt_tsx == -1 ) opt_tsx = -3; @@ -114,6 +112,7 @@ static int __init parse_spec_ctrl(const opt_ibpb = false; opt_ssbd = false; opt_l1d_flush = 0; + opt_branch_harden = false; } else if ( val > 0 ) rc = -EINVAL;
This is controlling Xen behavior alone, after all. Reported-by: Jin Nan Wang <jnwang@suse.com> Signed-off-by: Jan Beulich <jbeulich@suse.com>