Re: [Xen-devel] [PATCH] x86/emul: Fix the decoding of segment overrides in 64bit mode

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 07.02.18 at 15:41, <andrew.cooper3@xxxxxxxxxx> wrote:
> Explicit segment overides other than %fs and %gs are documented as ignored by
> both Intel and AMD.
> 
> In practice, this means that:
> 
>  * Explicit uses of %ss don't actually yield #SS[0] for non-canonical
>    memory references.
>  * Explicit uses of %{e,c,d}s don't override %rbp/%rsp-based memory references
>    to yield #GP[0] for non-canonical memory references.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>



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