在 2015/6/18 15:27, fandongdong 写道:
在 2015/6/18 13:40, Jiang Liu 写道:
On 2015/6/17 22:36, Alex Williamson wrote:
On Wed, 2015-06-17 at 13:52 +0200, Joerg Roedeljoro wrote:
On Wed, Jun 17, 2015 at 10:42:49AM +, 范冬冬 wrote:
Hi maintainer,
We found a problem that a panic happen when cpu wa
From: Joerg Roedel
Make sure that we are skipping over large PTEs while walking
the page-table tree.
Cc: sta...@kernel.org
Fixes: 5c34c403b723 ("iommu/amd: Fix memory leak in free_pagetable")
Signed-off-by: Joerg Roedel
---
drivers/iommu/amd_iommu.c | 6 ++
1 file changed, 6 insertions(+)
From: Joerg Roedel
The use of the SR-IOV lock for ATS causes a dead-lock in the
AMD-IOMMU driver when virtual functions are added that have
an ATS capability.
The problem is that the VFs will be added to the bus with
the SR-IOV lock held. While added to the bus the
device-notifiers will run and
On Thu, 2015-06-11 at 16:54 +0100, Robin Murphy wrote:
> Taking some inspiration from the arch/arm code, implement the
> arch-specific side of the DMA mapping ops using the new IOMMU-DMA layer.
>
> Whilst proliferating per-device private IOMMU data via dev->archdata is
> less than ideal, it will d
Hi Robin,
while our drm test, we meet a problem while dma-mmap.
On Thu, 2015-06-11 at 16:54 +0100, Robin Murphy wrote:
> Taking inspiration from the existing arch/arm code, break out some
> generic functions to interface the DMA-API to the IOMMU-API. This will
> do the bulk of the heavy lifti
On 18/06/15 16:00, Yong Wu wrote:
Hi Robin,
while our drm test, we meet a problem while dma-mmap.
On Thu, 2015-06-11 at 16:54 +0100, Robin Murphy wrote:
Taking inspiration from the existing arch/arm code, break out some
generic functions to interface the DMA-API to the IOMMU-API. This wi
On Thu, 2015-06-18 at 17:54 +0100, Robin Murphy wrote:
> On 18/06/15 16:00, Yong Wu wrote:
> > Hi Robin,
> > while our drm test, we meet a problem while dma-mmap.
> >
> > On Thu, 2015-06-11 at 16:54 +0100, Robin Murphy wrote:
> >> Taking inspiration from the existing arch/arm code, break out
