On Thu, Mar 4, 2021 at 7:48 AM Robin Murphy wrote:
>
> On 2021-03-01 08:42, Christoph Hellwig wrote:
> > Signed-off-by: Christoph Hellwig
>
> Moreso than the previous patch, where the feature is at least relatively
> generic (note that there's a bunch of in-flight development around
>
Hi Jason,
On Thu, 4 Mar 2021 15:02:53 -0400, Jason Gunthorpe wrote:
> On Thu, Mar 04, 2021 at 11:01:44AM -0800, Jacob Pan wrote:
>
> > > For something like qemu I'd expect to put the qemu process in a cgroup
> > > with 1 PASID. Who cares what qemu uses the PASID for, or how it was
> > >
On Thu, Mar 04, 2021 at 11:01:44AM -0800, Jacob Pan wrote:
> > For something like qemu I'd expect to put the qemu process in a cgroup
> > with 1 PASID. Who cares what qemu uses the PASID for, or how it was
> > allocated?
>
> For vSVA, we will need one PASID per guest process. But that is up to
Hi Jason,
On Thu, 4 Mar 2021 13:54:02 -0400, Jason Gunthorpe wrote:
> On Thu, Mar 04, 2021 at 09:46:03AM -0800, Jacob Pan wrote:
>
> > Right, I was assuming have three use cases of IOASIDs:
> > 1. host supervisor SVA (not a concern, just one init_mm to bind)
> > 2. host user SVA, either one
On Thu, Mar 04, 2021 at 09:46:03AM -0800, Jacob Pan wrote:
> Right, I was assuming have three use cases of IOASIDs:
> 1. host supervisor SVA (not a concern, just one init_mm to bind)
> 2. host user SVA, either one IOASID per process or perhaps some private
> IOASID for private address space
> 3.
Hi Jean-Philippe,
On Thu, 4 Mar 2021 10:49:37 +0100, Jean-Philippe Brucker
wrote:
> On Wed, Mar 03, 2021 at 04:02:05PM -0800, Jacob Pan wrote:
> > Hi Jacob,
> >
> > On Wed, 3 Mar 2021 13:17:26 -0800, Jacob Pan
> > wrote:
> >
> > > Hi Tejun,
> > >
> > > On Wed, 3 Mar 2021 10:44:28 -0500,
Hi Shameer,
On Mon, Feb 22, 2021 at 03:53:37PM +, Shameer Kolothum wrote:
> If the SMMU supports BTM and the device belongs to NESTED domain
> with shared pasid table, we need to use the VMID allocated by the
> KVM for the s2 configuration. Hence, request a pinned VMID from KVM.
>
>
On 2021-03-03 16:40, Horia Geantă wrote:
On 3/3/2021 4:57 PM, Sascha Hauer wrote:
On Wed, Mar 03, 2021 at 12:26:32PM +0200, Horia Geantă wrote:
Adding some people in the loop, maybe they could help in understanding
why lack of "dma-coherent" property for a HW-coherent device could lead to
On 2021-03-01 08:42, Christoph Hellwig wrote:
Signed-off-by: Christoph Hellwig
Moreso than the previous patch, where the feature is at least relatively
generic (note that there's a bunch of in-flight development around
DOMAIN_ATTR_NESTING), I'm really not convinced that it's beneficial to
On 2021-03-01 08:42, Christoph Hellwig wrote:
Use explicit methods for setting and querying the information instead.
Now that everyone's using iommu-dma, is there any point in bouncing this
through the drivers at all? Seems like it would make more sense for the
x86 drivers to reflect their
On Thu, Mar 04, 2021 at 07:20:22AM +, Liu, Yi L wrote:
> > > However, IOMMU is a system device which has little value to be exposed
> > to
> > > the userspace. Not to mention the device-IOMMU affinity/topology. VFIO
> > > nicely abstracts IOMMU from the userspace, why do we want to reverse
> >
On Sat, Feb 27, 2021 at 03:39:09PM +0800, Zenghui Yu wrote:
> As per Intel vt-d spec, Rev 3.0 (section 10.4.45 "Virtual Command Response
> Register"), the status code of "No PASID available" error in response to
> the Allocate PASID command is 2, not 1. The same for "Invalid PASID" error
> in
On Thu, Feb 18, 2021 at 02:07:02PM -0800, Nicolin Chen wrote:
> drivers/iommu/tegra-smmu.c | 72 +-
> 1 file changed, 71 insertions(+), 1 deletion(-)
Applied for v5.12, thanks.
___
iommu mailing list
On Thu, Feb 25, 2021 at 02:26:51PM +0800, Lu Baolu wrote:
> When the first level page table is used for IOVA translation, it only
> supports Read-Only and Read-Write permissions. The Write-Only permission
> is not supported as the PRESENT bit (implying Read permission) should
> always set. When
On Wed, Feb 17, 2021 at 06:10:02PM +, Will Deacon wrote:
> > drivers/iommu/amd/iommu.c | 10 ++
> > 1 file changed, 6 insertions(+), 4 deletions(-)
>
> Acked-by: Will Deacon
Applied for v5.12, thanks.
There were some conflicts which I resolved, can you please check the
result,
On Mon, Mar 01, 2021 at 09:42:40AM +0100, Christoph Hellwig wrote:
> Diffstat:
> arch/powerpc/include/asm/fsl_pamu_stash.h | 12
> drivers/gpu/drm/msm/adreno/adreno_gpu.c |2
> drivers/iommu/amd/iommu.c | 23
> drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 85
On Wed, Mar 03, 2021 at 04:02:05PM -0800, Jacob Pan wrote:
> Hi Jacob,
>
> On Wed, 3 Mar 2021 13:17:26 -0800, Jacob Pan
> wrote:
>
> > Hi Tejun,
> >
> > On Wed, 3 Mar 2021 10:44:28 -0500, Tejun Heo wrote:
> >
> > > On Sat, Feb 27, 2021 at 02:01:23PM -0800, Jacob Pan wrote:
> > > > IOASIDs
Hi Robin,
On Tue, 16 Feb 2021 at 23:10, Robin Murphy wrote:
>
> >>>
> >>> On Wed, Feb 03, 2021 at 05:07:26PM +0800, Chunyan Zhang wrote:
> From: Chunyan Zhang
>
> This iommu module can be used by Unisoc's multimedia devices, such as
> display, Image codec(jpeg) and a few
' as documented in
https://git-scm.com/docs/git-format-patch]
url:
https://github.com/0day-ci/linux/commits/Jacob-Pan/Misc-vSVA-fixes-for-VT-d/20210219-141141
base: https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git next
config: ia64-randconfig-r023-20210304 (attached as .config
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