Re: [Xen-devel] [PATCH] x86emul: correct behavior for single iteration REP INS/OUTS

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 01/02/17 10:59, Jan Beulich wrote:
> The initial operation done on these paths may raise an exception (for
> ->read_io() that's possible only on the PV path, when the I/O port
> access check has been deferred). We have to suppress put_rep_prefix()
> updating rCX in that case. From an abstract perspective this also
> applies to RETRY being returned.
>
> Reported-by: Wei Liu <wei.liu2@xxxxxxxxxx>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

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