Re: [Xen-devel] [PATCH] tests/xen-access: Added vm_event emulation tests

[Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>]

On 04/12/2017 07:50 PM, Wei Liu wrote:
> On Mon, Apr 10, 2017 at 12:44:45PM +0300, Razvan Cojocaru wrote:
>> This patch adds support for testing instruction emulation when
>> required by the vm_event reply sent for MEM_ACCESS events. To this
>> end, it adds the "emulate_write" and "emulate_exec" parameters
>> that behave like the old "write" and "exec" parameters, except
>> instead of allowing writes / executes for a hit page, they emulate
>> the trigger instruction. The new parameters don't mark all of the
>> guest's pages, instead they stop at the arbitrary low limit of
>> the first 1000 pages - otherwise the guest would slow to a crawl.
>> Since the emulator is still incomplete and has trouble with
>> emulating competing writes in SMP scenarios, the new tests are
>> only meant for debugging issues.
>>
>> Signed-off-by: Razvan Cojocaru <rcojocaru@xxxxxxxxxxxxxxx>
> 
> FAOD this should be acked by Tamas.
> 
> I also suggest you repost this once the development window opens,
> regardless whether it is acked or not.

Of course, he's probably just not near a computer or has not seen it.


Thanks,
Razvan

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