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[xen staging-4.15] x86/spec-ctrl: Honour spec-ctrl=0 for unpriv-mmio sub-option



commit 5be1f46f435f8b05608b1eae029cb17d8bd3a560
Author:     Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
AuthorDate: Tue Jul 12 11:25:05 2022 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Tue Jul 12 11:25:05 2022 +0200

    x86/spec-ctrl: Honour spec-ctrl=0 for unpriv-mmio sub-option
    
    This was an oversight from when unpriv-mmio was introduced.
    
    Fixes: 8c24b70fedcb ("x86/spec-ctrl: Add spec-ctrl=unpriv-mmio")
    Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    master commit: 4cdb519d797c19ebb8fadc5938cdb47479d5a21b
    master date: 2022-07-11 15:21:35 +0100
---
 xen/arch/x86/spec_ctrl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/xen/arch/x86/spec_ctrl.c b/xen/arch/x86/spec_ctrl.c
index 8212227ee0..06790897e4 100644
--- a/xen/arch/x86/spec_ctrl.c
+++ b/xen/arch/x86/spec_ctrl.c
@@ -122,6 +122,7 @@ static int __init parse_spec_ctrl(const char *s)
             opt_l1d_flush = 0;
             opt_branch_harden = false;
             opt_srb_lock = 0;
+            opt_unpriv_mmio = false;
         }
         else if ( val > 0 )
             rc = -EINVAL;
--
generated by git-patchbot for /home/xen/git/xen.git#staging-4.15



 


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