Hi Alex,
On 11/11/21 8:32 AM, Alex Williamson wrote:
When supporting only the .map and .unmap callbacks of iommu_ops,
the IOMMU driver can make assumptions about the size and alignment
used for mappings based on the driver provided pgsize_bitmap. VT-d
previously used essentially PAGE_MASK for
Hi AngeloGioacchino,
Thanks very much for your help review.
On Thu, 2021-11-11 at 14:41 +0100, AngeloGioacchino Del Regno wrote:
> Il 08/11/21 09:24, Yong Wu ha scritto:
> > We add the ostd setting for mt8195. It introduces a KE for the
> > previous SoC which doesn't have ostd setting. This is
Il 08/11/21 09:24, Yong Wu ha scritto:
We add the ostd setting for mt8195. It introduces a KE for the
previous SoC which doesn't have ostd setting. This is the log:
Unable to handle kernel NULL pointer dereference at virtual address
0080
...
pc :
Hi Jason,
> From: Jason Gunthorpe
> Sent: Wednesday, November 3, 2021 9:26 PM
>
> On Tue, Nov 02, 2021 at 09:53:29AM +, Liu, Yi L wrote:
>
> > > vfio_uninit_group_dev(_state->vdev);
> > > kfree(mdev_state->pages);
> > > kfree(mdev_state->vconfig);
> > > kfree(mdev_state);
> > >
> >
I was able to hit the issue that this patch is fixing using the memory
allocator in QATlib (https://github.com/intel/qatlib/) which uses vfio
to map and unmap memory.
This patch fixes the problem.
On Wed, Nov 10, 2021 at 05:32:50PM -0700, Alex Williamson wrote:
> When supporting only the .map
Thanks Alex, Baolu.
The patch fixes things at my end. No kernel-flooding is seen now
(tested starting/stopping vm > 10 times).
Thanks and Regards,
Ajay
On Thu, Nov 11, 2021 at 6:03 AM Alex Williamson
wrote:
>
> When supporting only the .map and .unmap callbacks of iommu_ops,
> the IOMMU driver
