[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] [xen stable-4.8] x86emul: CMPXCHG16B requires an aligned operand
commit 67e96796f438484cbe0e5829a42b107bdcabd5b9 Author: Jan Beulich <jbeulich@xxxxxxxx> AuthorDate: Wed Jan 18 09:49:26 2017 +0100 Commit: Jan Beulich <jbeulich@xxxxxxxx> CommitDate: Wed Jan 18 09:49:26 2017 +0100 x86emul: CMPXCHG16B requires an aligned operand This distinguishes it from CMPXCHG8B. Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx> Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx> master commit: d7d3a82c28a1102ee6c9707071a946164bae0d57 master date: 2016-12-16 14:37:11 +0100 --- xen/arch/x86/x86_emulate/x86_emulate.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/xen/arch/x86/x86_emulate/x86_emulate.c b/xen/arch/x86/x86_emulate/x86_emulate.c index ccaffca..6bb3c74 100644 --- a/xen/arch/x86/x86_emulate/x86_emulate.c +++ b/xen/arch/x86/x86_emulate/x86_emulate.c @@ -5287,6 +5287,9 @@ x86_emulate( if ( op_bytes == 8 ) { host_and_vcpu_must_have(cx16); + generate_exception_if(!is_aligned(ea.mem.seg, ea.mem.off, 16, + ctxt, ops), + EXC_GP, 0); op_bytes = 16; } else -- generated by git-patchbot for /home/xen/git/xen.git#stable-4.8 _______________________________________________ Xen-changelog mailing list Xen-changelog@xxxxxxxxxxxxx https://lists.xenproject.org/xen-changelog
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