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SUSE:SLE-12-SP2:GA
xen.7653
58510cac-x86emul-MOVNTI-no-REP-prefixes.patch
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File 58510cac-x86emul-MOVNTI-no-REP-prefixes.patch of Package xen.7653
# Commit 96a7cb37b921d2b320183d194d143262e1dd5b53 # Date 2016-12-14 10:11:08 +0100 # Author Jan Beulich <jbeulich@suse.com> # Committer Jan Beulich <jbeulich@suse.com> x86emul: MOVNTI does not allow REP prefixes Just like 66, prefixes F3 and F2 cause #UD. Signed-off-by: Jan Beulich <jbeulich@suse.com> Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com> --- a/xen/arch/x86/x86_emulate/x86_emulate.c +++ b/xen/arch/x86/x86_emulate/x86_emulate.c @@ -4673,7 +4673,7 @@ x86_emulate( case 0xc3: /* movnti */ /* Ignore the non-temporal hint for now. */ vcpu_must_have_sse2(); - generate_exception_if(dst.bytes <= 2, EXC_UD, -1); + generate_exception_if(vex.pfx, EXC_UD, -1); dst.val = src.val; break;
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