in
>> Murphy ; Jean-Philippe Brucker
>> ; zhukeqian ;
>> Shameerali Kolothum Thodi ;
>> David Woodhouse ; Lu Baolu
>> ; Jason Gunthorpe ; Nicolin Chen
>> ; Yishai Hadas ; Eric Auger
>> ; Liu, Yi L ; Alex Williamson
>> ; Cornelia Huck ;
>> k...@vger.kernel
m Thodi ;
> David Woodhouse ; Lu Baolu
> ; Jason Gunthorpe ; Nicolin Chen
> ; Yishai Hadas ; Eric Auger
> ; Liu, Yi L ; Alex Williamson
> ; Cornelia Huck ;
> k...@vger.kernel.org; iommu@lists.linux-foundation.org
> Subject: Re: [PATCH RFC 15/19] iommu/arm-smmu-v3: Add
> set_d
[my mua made the message a tad crooked with the quotations]
On 5/2/22 12:52, Joao Martins wrote:
> On 4/29/22 20:20, Robin Murphy wrote:
>> On 2022-04-29 17:40, Joao Martins wrote:
>>> On 4/29/22 17:11, Jason Gunthorpe wrote:
On Fri, Apr 29, 2022 at 03:45:23PM +0100, Joao Martins wrote:
On 4/29/22 20:20, Robin Murphy wrote:
> On 2022-04-29 17:40, Joao Martins wrote:
>> On 4/29/22 17:11, Jason Gunthorpe wrote:
>>> On Fri, Apr 29, 2022 at 03:45:23PM +0100, Joao Martins wrote:
On 4/29/22 13:23, Jason Gunthorpe wrote:
> On Fri, Apr 29, 2022 at 01:06:06PM +0100, Joao Martins
On 2022-04-29 17:40, Joao Martins wrote:
On 4/29/22 17:11, Jason Gunthorpe wrote:
On Fri, Apr 29, 2022 at 03:45:23PM +0100, Joao Martins wrote:
On 4/29/22 13:23, Jason Gunthorpe wrote:
On Fri, Apr 29, 2022 at 01:06:06PM +0100, Joao Martins wrote:
TBH I'd be inclined to just enable DBM
On Fri, Apr 29, 2022 at 05:40:56PM +0100, Joao Martins wrote:
> > A common use model might be to just destroy the iommu_domain without
> > doing stop so prefering the clearing io page table at stop might be a
> > better overall design.
>
> If we want to ensure that the IOPTE dirty state is
On 4/29/22 17:11, Jason Gunthorpe wrote:
> On Fri, Apr 29, 2022 at 03:45:23PM +0100, Joao Martins wrote:
>> On 4/29/22 13:23, Jason Gunthorpe wrote:
>>> On Fri, Apr 29, 2022 at 01:06:06PM +0100, Joao Martins wrote:
>>>
> TBH I'd be inclined to just enable DBM unconditionally in
>
On Fri, Apr 29, 2022 at 03:45:23PM +0100, Joao Martins wrote:
> On 4/29/22 13:23, Jason Gunthorpe wrote:
> > On Fri, Apr 29, 2022 at 01:06:06PM +0100, Joao Martins wrote:
> >
> >>> TBH I'd be inclined to just enable DBM unconditionally in
> >>> arm_smmu_domain_finalise() if the SMMU supports it.
On 4/29/22 13:23, Jason Gunthorpe wrote:
> On Fri, Apr 29, 2022 at 01:06:06PM +0100, Joao Martins wrote:
>
>>> TBH I'd be inclined to just enable DBM unconditionally in
>>> arm_smmu_domain_finalise() if the SMMU supports it. Trying to toggle it
>>> dynamically (especially on a live domain)
On Fri, Apr 29, 2022 at 01:06:06PM +0100, Joao Martins wrote:
> > TBH I'd be inclined to just enable DBM unconditionally in
> > arm_smmu_domain_finalise() if the SMMU supports it. Trying to toggle it
> > dynamically (especially on a live domain) seems more trouble that it's
> > worth.
>
>
On 4/29/22 12:19, Robin Murphy wrote:
> On 2022-04-29 12:05, Joao Martins wrote:
>> On 4/29/22 09:28, Tian, Kevin wrote:
From: Joao Martins
Sent: Friday, April 29, 2022 5:09 AM
Similar to .read_and_clear_dirty() use the page table
walker helper functions and set
On 2022-04-29 12:05, Joao Martins wrote:
On 4/29/22 09:28, Tian, Kevin wrote:
From: Joao Martins
Sent: Friday, April 29, 2022 5:09 AM
Similar to .read_and_clear_dirty() use the page table
walker helper functions and set DBM|RDONLY bit, thus
switching the IOPTE to writeable-clean.
this
On 4/29/22 09:28, Tian, Kevin wrote:
>> From: Joao Martins
>> Sent: Friday, April 29, 2022 5:09 AM
>>
>> Similar to .read_and_clear_dirty() use the page table
>> walker helper functions and set DBM|RDONLY bit, thus
>> switching the IOPTE to writeable-clean.
>
> this should not be one-off if the
> From: Joao Martins
> Sent: Friday, April 29, 2022 5:09 AM
>
> Similar to .read_and_clear_dirty() use the page table
> walker helper functions and set DBM|RDONLY bit, thus
> switching the IOPTE to writeable-clean.
this should not be one-off if the operation needs to be
applied to IOPTE. Say a
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