On 14/07/16 21:52, Alexey Kardashevskiy wrote:
> On 14/07/16 20:12, Balbir Singh wrote:
>> On Thu, Jul 14, 2016 at 3:16 PM, Alexey Kardashevskiy wrote:
>>> At the moment VFIO IOMMU SPAPR v2 driver pins all guest RAM pages when
>>> the userspace starts using VFIO. When the userspace process finishe
On 14/07/16 20:12, Balbir Singh wrote:
> On Thu, Jul 14, 2016 at 3:16 PM, Alexey Kardashevskiy wrote:
>> At the moment VFIO IOMMU SPAPR v2 driver pins all guest RAM pages when
>> the userspace starts using VFIO. When the userspace process finishes,
>> all the pinned pages need to be put; this is d
On Thu, Jul 14, 2016 at 3:16 PM, Alexey Kardashevskiy wrote:
> At the moment VFIO IOMMU SPAPR v2 driver pins all guest RAM pages when
> the userspace starts using VFIO. When the userspace process finishes,
> all the pinned pages need to be put; this is done as a part of
> the userspace memory cont
At the moment VFIO IOMMU SPAPR v2 driver pins all guest RAM pages when
the userspace starts using VFIO. When the userspace process finishes,
all the pinned pages need to be put; this is done as a part of
the userspace memory context (MM) destruction which happens on
the very last mmdrop().
This ap
