On Mon May 18 20, Joerg Roedel wrote:
On Fri, May 15, 2020 at 08:23:13PM +0100, Robin Murphy wrote:
But that's not what this is; this is (supposed to be) the exact same "don't
actually perform the attach yet" logic as before, just restricting it to
default domains in the one place that it actual
On Mon May 18 20, Joerg Roedel wrote:
On Fri, May 15, 2020 at 08:23:13PM +0100, Robin Murphy wrote:
But that's not what this is; this is (supposed to be) the exact same "don't
actually perform the attach yet" logic as before, just restricting it to
default domains in the one place that it actual
On Fri, May 15, 2020 at 08:23:13PM +0100, Robin Murphy wrote:
> But that's not what this is; this is (supposed to be) the exact same "don't
> actually perform the attach yet" logic as before, just restricting it to
> default domains in the one place that it actually needs to be, so as not to
> fund
On 2020-05-15 19:26, Joerg Roedel wrote:
On Fri, May 15, 2020 at 05:28:53PM +0100, Robin Murphy wrote:
On 2020-05-15 17:14, Joerg Roedel wrote:
diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
index ba128d1cdaee..403fda04ea98 100644
--- a/drivers/iommu/dma-iommu.c
+++ b/driver
On Fri, May 15, 2020 at 05:28:53PM +0100, Robin Murphy wrote:
> On 2020-05-15 17:14, Joerg Roedel wrote:
> > diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
> > index ba128d1cdaee..403fda04ea98 100644
> > --- a/drivers/iommu/dma-iommu.c
> > +++ b/drivers/iommu/dma-iommu.c
> > @@
On 2020-05-15 17:14, Joerg Roedel wrote:
On Fri, May 15, 2020 at 04:42:23PM +0100, Robin Murphy wrote:
struct iommu_domain *iommu_get_dma_domain(struct device *dev)
{
- return dev->iommu_group->default_domain;
+ struct iommu_domain *domain = dev->iommu_group->default_domain;
+
On Fri, May 15, 2020 at 04:42:23PM +0100, Robin Murphy wrote:
> > struct iommu_domain *iommu_get_dma_domain(struct device *dev)
> > {
> > - return dev->iommu_group->default_domain;
> > + struct iommu_domain *domain = dev->iommu_group->default_domain;
> > +
> > + if (__iommu_is_attach_defe
On 2020-05-15 10:45, Joerg Roedel wrote:
From: Joerg Roedel
The IOMMU core code has support for deferring the attachment of a domain
to a device. This is needed in kdump kernels where the new domain must
not be attached to a device before the device driver takes it over.
But this needs support
On Fri, May 15, 2020 at 09:51:03PM +0800, Lu Baolu wrote:
> On 2020/5/15 17:45, Joerg Roedel wrote:
> > struct iommu_domain *iommu_get_dma_domain(struct device *dev)
> > {
> > - return dev->iommu_group->default_domain;
> > + struct iommu_domain *domain = dev->iommu_group->default_domain;
>
Hi Joerg,
On 2020/5/15 17:45, Joerg Roedel wrote:
From: Joerg Roedel
The IOMMU core code has support for deferring the attachment of a domain
to a device. This is needed in kdump kernels where the new domain must
not be attached to a device before the device driver takes it over.
But this nee
From: Joerg Roedel
The IOMMU core code has support for deferring the attachment of a domain
to a device. This is needed in kdump kernels where the new domain must
not be attached to a device before the device driver takes it over.
But this needs support from the dma-ops code too, to actually do
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