Re: [Xen-devel] [PATCH v2 1/4] xen: make logdirty and iommu mutually exclusive

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On 24/04/14 09:36, Roger Pau Monné wrote:
> On 23/04/14 11:54, Jan Beulich wrote:
>>>>> On 23.04.14 at 10:16, <roger.pau@xxxxxxxxxx> wrote:
>>> --- a/xen/drivers/passthrough/iommu.c
>>> +++ b/xen/drivers/passthrough/iommu.c
>>> @@ -292,7 +292,8 @@ static int assign_device(struct domain *d, u16 seg, u8 
>>> bus, u8 devfn)
>>>       * enabled for this domain */
>>>      if ( unlikely(!need_iommu(d) &&
>>>              (d->arch.hvm_domain.mem_sharing_enabled ||
>>> -             d->mem_event->paging.ring_page)) )
>>> +             d->mem_event->paging.ring_page ||
>>> +             paging_mode_log_dirty(d))) )
>>
>> I'm afraid that would return true also for non-global log dirty mode.
>> This patch series
>> http://lists.xenproject.org/archives/html/xen-devel/2014-04/msg02750.html
>> (patch 1) introduces a way to know whether global mode is enabled
>> - maybe you should base your series on top of that one?
> 
> Sure, this series are already on top of Mukesh p2m cleanup patches, I
> don't mind rebasing it on top of your series also.

I'm afraid I will have to wait for either you or Mukesh to rebase on top
of each other, since your patches don't apply cleanly on top of Mukesh's
p2m changes.

Roger.


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