linux-kernel - Re: Re: [PATCH v2 1/1] iommu/vt-d: Drain PRQs when domain removed from RID

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Message-ID: <emkjq4n4mzqegosmidht25qsveuoqxx6bg3r6npikwovomk5gw@ofbvlyrqkxqh>
Date: Mon, 4 Nov 2024 09:30:17 +0100
From: Joel Granados <joel.granados@...nel.org>
To: Baolu Lu <baolu.lu@...ux.intel.com>
Cc: iommu@...ts.linux.dev, Joerg Roedel <joro@...tes.org>, 
	Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>, 
	Jason Gunthorpe <jgg@...pe.ca>, Kevin Tian <kevin.tian@...el.com>, Yi Liu <yi.l.liu@...el.com>, 
	linux-kernel@...r.kernel.org
Subject: Re: Re: [PATCH v2 1/1] iommu/vt-d: Drain PRQs when domain removed
 from RID

On Sat, Nov 02, 2024 at 11:16:31AM +0800, Baolu Lu wrote:
> On 2024/11/1 12:55, Lu Baolu wrote:
> > As this iommu driver now supports page faults for requests without
> > PASID, page requests should be drained when a domain is removed from
> > the RID2PASID entry.
> > 
> > This results in the intel_iommu_drain_pasid_prq() call being moved to
> > intel_pasid_tear_down_entry(). This indicates that when a translation
> > is removed from any PASID entry and the PRI has been enabled on the
> > device, page requests are drained in the domain detachment path.
> > 
> > The intel_iommu_drain_pasid_prq() helper has been modified to support
> > sending device TLB invalidation requests for both PASID and non-PASID
> > cases.
> > 
> > Signed-off-by: Lu Baolu<baolu.lu@...ux.intel.com>
> > ---
> >   drivers/iommu/intel/iommu.c |  1 -
> >   drivers/iommu/intel/pasid.c |  1 +
> >   drivers/iommu/intel/prq.c   | 26 +++++++++-----------------
> >   3 files changed, 10 insertions(+), 18 deletions(-)
> 
> Queued for v6.13.
Does this mean that "iommu: Enable user space IOPFs in non-PASID and
non-svm cases" is also queued for 6.13?

Best

> 
> --
> baolu

-- 

Joel Granados