Hi,
On 09/26/2018 01:55 AM, Jean-Philippe Brucker wrote:
On 19/09/2018 00:26, Tian, Kevin wrote:
If the core actually calls it, we can implement detach_dev :) The
problem is that the core never calls detach_dev when default_domain is
present (affects any IOMMU driver that relies on
On 19/09/2018 00:26, Tian, Kevin wrote:
>> If the core actually calls it, we can implement detach_dev :) The
>> problem is that the core never calls detach_dev when default_domain is
>> present (affects any IOMMU driver that relies on default_domain,
>> including AMD), and even in case 4) the
Hi,
On 09/19/2018 07:26 AM, Tian, Kevin wrote:
From: Jean-Philippe Brucker [mailto:jean-philippe.bruc...@arm.com]
Sent: Tuesday, September 18, 2018 11:52 PM
On 15/09/2018 03:36, Tian, Kevin wrote:
4) Userspace opens another mdev.
-> iommu.c calls domain->ops->attach_dev(domain2, dev)
> From: Jean-Philippe Brucker [mailto:jean-philippe.bruc...@arm.com]
> Sent: Tuesday, September 18, 2018 11:52 PM
>
> On 15/09/2018 03:36, Tian, Kevin wrote:
> >> 4) Userspace opens another mdev.
> >> -> iommu.c calls domain->ops->attach_dev(domain2, dev)
> >
> > another mdev in same VFIO
On 15/09/2018 03:36, Tian, Kevin wrote:
>> 4) Userspace opens another mdev.
>> -> iommu.c calls domain->ops->attach_dev(domain2, dev)
>
> another mdev in same VFIO container or different? I assume the
> latter since you mentioned a new domain2.
I was thinking a different VFIO container actually.
> From: Jean-Philippe Brucker
> Sent: Friday, September 14, 2018 10:46 PM
>
> On 13/09/2018 01:35, Tian, Kevin wrote:
> >>> Let's consider it from the API point of view.
> >>>
> >>> We have iommu_a(de)ttach_device() APIs to attach or detach a domain
> >>> to/from a device. We should avoid
On 13/09/2018 01:35, Tian, Kevin wrote:
>>> Let's consider it from the API point of view.
>>>
>>> We have iommu_a(de)ttach_device() APIs to attach or detach a domain
>>> to/from a device. We should avoid applying a limitation of "these are
>>> only for single domain case, for multiple domains, use
> From: Jean-Philippe Brucker [mailto:jean-philippe.bruc...@arm.com]
> Sent: Thursday, September 13, 2018 1:54 AM
>
> On 12/09/2018 06:02, Lu Baolu wrote:
> > Hi,
> >
> > On 09/11/2018 12:23 AM, Jean-Philippe Brucker wrote:
> >> On 30/08/2018 05:09, Lu Baolu wrote:
> >>> +static int
On 12/09/2018 06:02, Lu Baolu wrote:
> Hi,
>
> On 09/11/2018 12:23 AM, Jean-Philippe Brucker wrote:
>> On 30/08/2018 05:09, Lu Baolu wrote:
>>> +static int vfio_detach_aux_domain(struct device *dev, void *data)
>>> +{
>>> + struct iommu_domain *domain = data;
>>> +
>>> +
Hi,
On 09/11/2018 12:23 AM, Jean-Philippe Brucker wrote:
On 30/08/2018 05:09, Lu Baolu wrote:
+static int vfio_detach_aux_domain(struct device *dev, void *data)
+{
+ struct iommu_domain *domain = data;
+
+ vfio_mdev_set_aux_domain(dev, NULL);
+ iommu_detach_device(domain,
On 30/08/2018 05:09, Lu Baolu wrote:
> +static int vfio_detach_aux_domain(struct device *dev, void *data)
> +{
> + struct iommu_domain *domain = data;
> +
> + vfio_mdev_set_aux_domain(dev, NULL);
> + iommu_detach_device(domain, dev->parent);
I think that's only going to work for vt-d,
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