On 4/30/22 05:11, Baolu Lu wrote:
> On 2022/4/29 05:09, Joao Martins wrote:
>> Add an IO pagetable API iopt_read_and_clear_dirty_data() that
>> performs the reading of dirty IOPTEs for a given IOVA range and
>> then copying back to userspace from each area-internal bitmap.
>>
>> Underneath it uses
On 2022/4/29 05:09, Joao Martins wrote:
Add an IO pagetable API iopt_read_and_clear_dirty_data() that
performs the reading of dirty IOPTEs for a given IOVA range and
then copying back to userspace from each area-internal bitmap.
Underneath it uses the IOMMU equivalent API which will read the
dir
On 4/29/22 13:09, Jason Gunthorpe wrote:
> On Fri, Apr 29, 2022 at 11:54:16AM +0100, Joao Martins wrote:
>> On 4/29/22 09:12, Tian, Kevin wrote:
From: Joao Martins
Sent: Friday, April 29, 2022 5:09 AM
>>> [...]
+
+static int iommu_read_and_clear_dirty(struct iommu_domain *domai
On Fri, Apr 29, 2022 at 11:54:16AM +0100, Joao Martins wrote:
> On 4/29/22 09:12, Tian, Kevin wrote:
> >> From: Joao Martins
> >> Sent: Friday, April 29, 2022 5:09 AM
> > [...]
> >> +
> >> +static int iommu_read_and_clear_dirty(struct iommu_domain *domain,
> >> +str
On 4/29/22 09:12, Tian, Kevin wrote:
>> From: Joao Martins
>> Sent: Friday, April 29, 2022 5:09 AM
> [...]
>> +
>> +static int iommu_read_and_clear_dirty(struct iommu_domain *domain,
>> + struct iommufd_dirty_data *bitmap)
>
> In a glance this function and all pre
> From: Joao Martins
> Sent: Friday, April 29, 2022 5:09 AM
[...]
> +
> +static int iommu_read_and_clear_dirty(struct iommu_domain *domain,
> + struct iommufd_dirty_data *bitmap)
In a glance this function and all previous helpers doesn't rely on any
iommufd objec
Add an IO pagetable API iopt_read_and_clear_dirty_data() that
performs the reading of dirty IOPTEs for a given IOVA range and
then copying back to userspace from each area-internal bitmap.
Underneath it uses the IOMMU equivalent API which will read the
dirty bits, as well as atomically clearing th
