At 15:38 +0000 on 23 Nov (1479915525), Andrew Cooper wrote:
> The current code to set up emulation state is ad-hoc and error prone.
> 
>  * Consistently zero all emulation state structures.
>  * Avoid explicitly initialising some state to 0.
>  * Explicitly identify all input and output state in x86_emulate_ctxt.  This
>    involves rearanging some fields.
>  * Have x86_decode() explicitly initalise all output state at its start.
> 
> In addition, move the calculation of hvmemul_ctxt->ctxt.swint_emulate from
> _hvm_emulate_one() to hvm_emulate_init_once(), as it doesn't need
> recalculating for each instruction.
> 
> Signed-off-by: Andrew Cooper <andrew.coop...@citrix.com>

Shadow code changes Acked-by: Tim Deegan <t...@xen.org>

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