Re: [Xen-devel] [PATCH] x86/emul: Avoid #UD in SIMD stubs

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 08.03.17 at 13:10, <andrew.cooper3@xxxxxxxxxx> wrote:
> v{,u}comis{s,d}, and vcvt{,t}s{s,d}2si are two-operand instructions, while
> vzero{all,upper} take no operands, so require vex.reg set to ~0 to avoid 
> #UD.
> 
> Spotted while fuzzing with AFL
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>



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