> From: Christoph Hellwig
> Sent: Friday, July 23, 2021 1:41 PM
>
> On Fri, Jul 23, 2021 at 05:36:17AM +, Tian, Kevin wrote:
> > > > And a new set of IOMMU-API:
> > > >
> > > > - iommu_{un}bind_pgtable(domain, dev, addr);
> > > > - iommu_{un}bind_pgtable_pasid(domain, dev, addr, pasid
On Fri, Jul 23, 2021 at 05:36:17AM +, Tian, Kevin wrote:
> > > And a new set of IOMMU-API:
> > >
> > > - iommu_{un}bind_pgtable(domain, dev, addr);
> > > - iommu_{un}bind_pgtable_pasid(domain, dev, addr, pasid);
> > > - iommu_cache_invalidate(domain, dev, invalid_info);
> >
> > Wha
> From: Christoph Hellwig
> Sent: Thursday, July 22, 2021 9:35 PM
>
> On Wed, Jun 30, 2021 at 09:08:19AM +, Tian, Kevin wrote:
> > The iommu layer should maintain above attaching status per device and
> per
> > iommu domain. There is no mdev/subdev concept in the iommu layer. It's
> > just ab
On Wed, Jun 30, 2021 at 09:08:19AM +, Tian, Kevin wrote:
> The iommu layer should maintain above attaching status per device and per
> iommu domain. There is no mdev/subdev concept in the iommu layer. It's
> just about RID or PASID.
Yes, I think that makes sense.
> And a new set of IOMMU-API:
A gentle ping...
> From: Tian, Kevin
> Sent: Wednesday, June 30, 2021 5:08 PM
>
> > From: Joerg Roedel
> > Sent: Monday, May 17, 2021 11:35 PM
> >
> > On Mon, May 17, 2021 at 10:35:00AM -0300, Jason Gunthorpe wrote:
> > > Well, I'm sorry, but there is a huge other thread talking about the
> > >
> From: Joerg Roedel
> Sent: Monday, May 17, 2021 11:35 PM
>
> On Mon, May 17, 2021 at 10:35:00AM -0300, Jason Gunthorpe wrote:
> > Well, I'm sorry, but there is a huge other thread talking about the
> > IOASID design in great detail and why this is all needed. Jumping into
> > this thread withou
On Mon, May 24, 2021 at 07:18:33PM +0100, Robin Murphy wrote:
> On 2021-05-20 15:34, Jason Gunthorpe wrote:
> > On Thu, May 20, 2021 at 03:13:55PM +0100, Robin Murphy wrote:
> >
> > > By "mdev-like" I mean it's very similar in shape to the general SIOV-style
> > > mediated device concept - i.e. a
On 2021-05-20 15:34, Jason Gunthorpe wrote:
On Thu, May 20, 2021 at 03:13:55PM +0100, Robin Murphy wrote:
By "mdev-like" I mean it's very similar in shape to the general SIOV-style
mediated device concept - i.e. a physical device with an awareness of
operating on multiple contexts at once, usin
On Thu, May 20, 2021 at 03:13:55PM +0100, Robin Murphy wrote:
> By "mdev-like" I mean it's very similar in shape to the general SIOV-style
> mediated device concept - i.e. a physical device with an awareness of
> operating on multiple contexts at once, using a Substream ID/PASID for each
> one - b
On 2021-05-20 00:24, Jason Gunthorpe wrote:
On Wed, May 19, 2021 at 11:12:46PM +, Tian, Kevin wrote:
From: Jason Gunthorpe
Sent: Thursday, May 20, 2021 2:07 AM
On Wed, May 19, 2021 at 04:23:21PM +0100, Robin Murphy wrote:
On 2021-05-17 16:35, Joerg Roedel wrote:
On Mon, May 17, 2021 at 1
On Wed, May 19, 2021 at 11:12:46PM +, Tian, Kevin wrote:
> > From: Jason Gunthorpe
> > Sent: Thursday, May 20, 2021 2:07 AM
> >
> > On Wed, May 19, 2021 at 04:23:21PM +0100, Robin Murphy wrote:
> > > On 2021-05-17 16:35, Joerg Roedel wrote:
> > > > On Mon, May 17, 2021 at 10:35:00AM -0300, Ja
> From: Jason Gunthorpe
> Sent: Thursday, May 20, 2021 2:07 AM
>
> On Wed, May 19, 2021 at 04:23:21PM +0100, Robin Murphy wrote:
> > On 2021-05-17 16:35, Joerg Roedel wrote:
> > > On Mon, May 17, 2021 at 10:35:00AM -0300, Jason Gunthorpe wrote:
> > > > Well, I'm sorry, but there is a huge other t
On Wed, May 19, 2021 at 04:23:21PM +0100, Robin Murphy wrote:
> On 2021-05-17 16:35, Joerg Roedel wrote:
> > On Mon, May 17, 2021 at 10:35:00AM -0300, Jason Gunthorpe wrote:
> > > Well, I'm sorry, but there is a huge other thread talking about the
> > > IOASID design in great detail and why this is
On 2021-05-17 16:35, Joerg Roedel wrote:
On Mon, May 17, 2021 at 10:35:00AM -0300, Jason Gunthorpe wrote:
Well, I'm sorry, but there is a huge other thread talking about the
IOASID design in great detail and why this is all needed. Jumping into
this thread without context and basically rejecting
On Mon, May 17, 2021 at 10:35:00AM -0300, Jason Gunthorpe wrote:
> Well, I'm sorry, but there is a huge other thread talking about the
> IOASID design in great detail and why this is all needed. Jumping into
> this thread without context and basically rejecting all the
> conclusions that were reach
On Mon, May 17, 2021 at 02:53:16PM +0200, Joerg Roedel wrote:
> On Mon, May 17, 2021 at 09:30:10AM -0300, Jason Gunthorpe wrote:
> > On Mon, May 17, 2021 at 02:22:06PM +0200, Joerg Roedel wrote:
> > > Yes, I know, We have the AUX-domain specific functions now, but I
> > > suggested a while back to
On Mon, May 17, 2021 at 09:30:10AM -0300, Jason Gunthorpe wrote:
> On Mon, May 17, 2021 at 02:22:06PM +0200, Joerg Roedel wrote:
> > Yes, I know, We have the AUX-domain specific functions now, but I
> > suggested a while back to turn the mdev code into its own bus
> > implementation and let the IOM
On Mon, May 17, 2021 at 02:22:06PM +0200, Joerg Roedel wrote:
> On Fri, May 14, 2021 at 10:31:43AM -0300, Jason Gunthorpe wrote:
> > There is no place for "domain as a carrier of PASID"
> > there. mdev_device should NOT participate in the IOMMU layer because
> > it is NOT a HW device. Trying to war
On Fri, May 14, 2021 at 10:31:43AM -0300, Jason Gunthorpe wrote:
> There is no place for "domain as a carrier of PASID"
> there. mdev_device should NOT participate in the IOMMU layer because
> it is NOT a HW device. Trying to warp mdev_device into an IOMMU
> presence is already the source of a lot
On Fri, May 14, 2021 at 02:28:44PM +, Tian, Kevin wrote:
> Well, I see what you meant now. Basically you want to make IOASID
> as the first-class object in the entire iommu stack, replacing what
> iommu domain fulfill todays.
Alternatively you transform domain into being a full fledged IOAS
> From: Jason Gunthorpe
> Sent: Friday, May 14, 2021 9:40 PM
>
> On Fri, May 14, 2021 at 01:17:23PM +, Tian, Kevin wrote:
> > > From: Jason Gunthorpe
> > > Sent: Thursday, May 13, 2021 8:01 PM
> > >
> > > On Thu, May 13, 2021 at 03:28:52AM +, Tian, Kevin wrote:
> > >
> > > > Are you spec
Morning Jason,
On Fri, 14 May 2021 10:39:39 -0300, Jason Gunthorpe wrote:
> On Fri, May 14, 2021 at 01:17:23PM +, Tian, Kevin wrote:
> > > From: Jason Gunthorpe
> > > Sent: Thursday, May 13, 2021 8:01 PM
> > >
> > > On Thu, May 13, 2021 at 03:28:52AM +, Tian, Kevin wrote:
> > >
> > >
On Fri, May 14, 2021 at 01:17:23PM +, Tian, Kevin wrote:
> > From: Jason Gunthorpe
> > Sent: Thursday, May 13, 2021 8:01 PM
> >
> > On Thu, May 13, 2021 at 03:28:52AM +, Tian, Kevin wrote:
> >
> > > Are you specially concerned about this iommu_device hack which
> > > directly connects md
On Fri, May 14, 2021 at 12:58:10PM +, Tian, Kevin wrote:
> This avoids changing every iommu ops to include a PASID and forcing
> the upper-layer drivers to do it differently between pdev and mdev.
> Actually this was a main motivation when working out aux domain
> proposal with Joerg two years
> From: Jason Gunthorpe
> Sent: Thursday, May 13, 2021 8:01 PM
>
> On Thu, May 13, 2021 at 03:28:52AM +, Tian, Kevin wrote:
>
> > Are you specially concerned about this iommu_device hack which
> > directly connects mdev_device to iommu layer or the entire removed
> > logic including the aux
> From: Jason Gunthorpe
> Sent: Friday, May 14, 2021 8:19 PM
>
> On Fri, May 14, 2021 at 06:54:16AM +, Tian, Kevin wrote:
> > > From: Tian, Kevin
> > > Sent: Friday, May 14, 2021 2:28 PM
> > >
> > > > From: Jason Gunthorpe
> > > > Sent: Thursday, May 13, 2021 8:01 PM
> > > >
> > > > On Thu,
On Fri, May 14, 2021 at 06:54:16AM +, Tian, Kevin wrote:
> > From: Tian, Kevin
> > Sent: Friday, May 14, 2021 2:28 PM
> >
> > > From: Jason Gunthorpe
> > > Sent: Thursday, May 13, 2021 8:01 PM
> > >
> > > On Thu, May 13, 2021 at 03:28:52AM +, Tian, Kevin wrote:
> > >
> > > > Are you speci
> From: Tian, Kevin
> Sent: Friday, May 14, 2021 2:28 PM
>
> > From: Jason Gunthorpe
> > Sent: Thursday, May 13, 2021 8:01 PM
> >
> > On Thu, May 13, 2021 at 03:28:52AM +, Tian, Kevin wrote:
> >
> > > Are you specially concerned about this iommu_device hack which
> > > directly connects mdev_
> From: Jason Gunthorpe
> Sent: Thursday, May 13, 2021 8:01 PM
>
> On Thu, May 13, 2021 at 03:28:52AM +, Tian, Kevin wrote:
>
> > Are you specially concerned about this iommu_device hack which
> > directly connects mdev_device to iommu layer or the entire removed
> > logic including the aux
On Thu, May 13, 2021 at 03:28:52AM +, Tian, Kevin wrote:
> Are you specially concerned about this iommu_device hack which
> directly connects mdev_device to iommu layer or the entire removed
> logic including the aux domain concept? For the former we are now
> following up the referred threa
> From: Jason Gunthorpe
> Sent: Monday, May 10, 2021 11:55 PM
>
> On Mon, May 10, 2021 at 08:54:02AM +0200, Christoph Hellwig wrote:
> > The iommu_device field in struct mdev_device has never been used
> > since it was added more than 2 years ago.
> >
> > Signed-off-by: Christoph Hellwig
> > ---
On Mon, May 10, 2021 at 08:54:02AM +0200, Christoph Hellwig wrote:
> The iommu_device field in struct mdev_device has never been used
> since it was added more than 2 years ago.
>
> Signed-off-by: Christoph Hellwig
> ---
> drivers/vfio/vfio_iommu_type1.c | 132 ++--
>
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