On Mon, Mar 29, 2021 at 12:30:42PM -0700, Florian Fainelli wrote:
> Should I toss this in Russell's patch tracker or do you need me to make
> some changes to the patch?
Due to all the other changes in this area I don't think anything but
the swiotlb tree makes much sense here.
> From: Tian, Kevin
> Sent: Tuesday, March 30, 2021 10:24 AM
>
> > From: Jason Gunthorpe
> > Sent: Tuesday, March 30, 2021 12:32 AM
> > > In terms of usage for guest SVA, an ioasid_set is mostly tied to a host
> > > mm,
> > > the use case is as the following:
> >
> > From that doc:
> >
> > It
> From: Jason Gunthorpe
> Sent: Tuesday, March 30, 2021 12:32 AM
> > In terms of usage for guest SVA, an ioasid_set is mostly tied to a host mm,
> > the use case is as the following:
>
> From that doc:
>
> It is imperative to enforce
> VM-IOASID ownership such that a malicious guest cannot t
The Intel VT-d driver checks wrong register to report snoop capablility
when using first level page table for GPA to HPA translation. This might
lead the IOMMU driver to say that it supports snooping control, but in
reality, it does not. Fix this by always setting PASID-table-entry.PGSNP
whenever a
Hi Marc,
On 3/26/2021 6:28 PM, Marc Zyngier wrote:
On Fri, 26 Mar 2021 01:02:43 +,
"Dey, Megha" wrote:
Hi Marc,
On 3/25/2021 10:53 AM, Marc Zyngier wrote:
On Fri, 26 Feb 2021 20:11:17 +,
Megha Dey wrote:
From: Dave Jiang
Add new helpers to get the Linux IRQ number and device spec
> From: Jason Gunthorpe
> Sent: Tuesday, March 30, 2021 12:32 AM
>
> On Wed, Mar 24, 2021 at 12:05:28PM -0700, Jacob Pan wrote:
>
> > > IMHO a use created PASID is either bound to a mm (current) at creation
> > > time, or it will never be bound to a mm and its page table is under
> > > user cont
Hi Will,
在 2021/3/29 22:45, Will Deacon 写道:
On Sat, Mar 27, 2021 at 02:23:10PM +0800, chenxiang wrote:
From: Xiang Chen
Currently it will send a iotlb sync at end of iommu unmap even if
iotlb_gather is not valid (iotlb_gather->pgsize = 0). Actually it is not
necessary, so add a check to avoi
Hi Jason,
On Mon, 29 Mar 2021 13:31:47 -0300, Jason Gunthorpe wrote:
> On Wed, Mar 24, 2021 at 12:05:28PM -0700, Jacob Pan wrote:
>
> > > IMHO a use created PASID is either bound to a mm (current) at creation
> > > time, or it will never be bound to a mm and its page table is under
> > > user c
On 3/19/21 5:22 PM, Stefano Stabellini wrote:
> On Fri, 19 Mar 2021, Konrad Rzeszutek Wilk wrote:
>> On Fri, Mar 19, 2021 at 02:07:31PM +0100, Christoph Hellwig wrote:
>>> On Thu, Mar 18, 2021 at 09:03:33PM -0700, Florian Fainelli wrote:
#ifdef CONFIG_ARM_LPAE
+ if (swiotlb_force == SWI
On Wed, Mar 24, 2021 at 12:05:28PM -0700, Jacob Pan wrote:
> > IMHO a use created PASID is either bound to a mm (current) at creation
> > time, or it will never be bound to a mm and its page table is under
> > user control via /dev/ioasid.
> >
> True for PASID used in native SVA bind. But for bin
On Fri, Mar 12, 2021 at 06:17:55PM +0530, Vivek Kumar Gautam wrote:
> > Regarding the overall design, I was initially assigning page directories
> > instead of whole PASID tables, which would simplify the driver and host
> > implementation. A major complication, however, is SMMUv3 accesses PASID
>
On Fri, Mar 12, 2021 at 06:39:05PM +0530, Vivek Kumar Gautam wrote:
> To complete the page request we would also need to send the response back to
> the host from virtio backend when handling page request. So the virtio
> command should also be accompanied with a vfio api to send the page request
>
On Fri, Mar 12, 2021 at 06:59:17PM +0530, Vivek Kumar Gautam wrote:
> > > + /* XXX HACK: set feature bit ARM_SMMU_FEAT_2_LVL_CDTAB */
> > > + pst_cfg->vendor.cfg.feat_flag |= (1 << 1);
> >
> > Oh right, this flag is missing. I'll add
> >
> >#define VIRTIO_IOMMU_PST_ARM_SMMU3_F_CD2L (1ULL << 1
On Sat, Mar 27, 2021 at 02:23:10PM +0800, chenxiang wrote:
> From: Xiang Chen
>
> Currently it will send a iotlb sync at end of iommu unmap even if
> iotlb_gather is not valid (iotlb_gather->pgsize = 0). Actually it is not
> necessary, so add a check to avoid invalid iotlb sync.
>
> Signed-off-b
On 13:48 Mon 29 Mar 2021, Greg KH wrote:
On Mon, Mar 29, 2021 at 11:25:11AM +0530, Bhaskar Chowdhury wrote:
On 07:29 Mon 29 Mar 2021, Christoph Hellwig wrote:
> I really don't think these typo patchbomb are that useful. I'm all
> for fixing typos when working with a subsystem, but I'm not sure
On Mon, Mar 29, 2021 at 11:25:11AM +0530, Bhaskar Chowdhury wrote:
> On 07:29 Mon 29 Mar 2021, Christoph Hellwig wrote:
> > I really don't think these typo patchbomb are that useful. I'm all
> > for fixing typos when working with a subsystem, but I'm not sure these
> > patchbombs help anything.
>
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