search for: domain_bit

Following specification review a few things were changed in v8 of the virtio-iommu series [1], but have been omitted when merging the base driver. Add them now: * Remove the EXEC flag. * Add feature bit for the MMIO flag. * Change domain_bits to domain_range. * Add NOMEM status flag. [1] https://lore.kernel.org/linux-iommu/20190530170929.19366-1-jean-philippe.brucker at arm.com/ Fixes: edcd69ab9a32 ("iommu: Add virtio-iommu driver") Reported-by: Eric Auger <eric.auger at redhat.com> Signed-off-by: Jean-Philippe Brucke...

Following specification review a few things were changed in v8 of the virtio-iommu series [1], but have been omitted when merging the base driver. Add them now: * Remove the EXEC flag. * Add feature bit for the MMIO flag. * Change domain_bits to domain_range. * Add NOMEM status flag. [1] https://lore.kernel.org/linux-iommu/20190530170929.19366-1-jean-philippe.brucker at arm.com/ Fixes: edcd69ab9a32 ("iommu: Add virtio-iommu driver") Reported-by: Eric Auger <eric.auger at redhat.com> Signed-off-by: Jean-Philippe Brucke...

...00, Jean-Philippe Brucker wrote: > Following specification review a few things were changed in v8 of the > virtio-iommu series [1], but have been omitted when merging the base > driver. Add them now: > > * Remove the EXEC flag. > * Add feature bit for the MMIO flag. > * Change domain_bits to domain_range. > * Add NOMEM status flag. > > [1] https://lore.kernel.org/linux-iommu/20190530170929.19366-1-jean-philippe.brucker at arm.com/ > > Fixes: edcd69ab9a32 ("iommu: Add virtio-iommu driver") > Reported-by: Eric Auger <eric.auger at redhat.com> >...

...PM, Jean-Philippe Brucker wrote: > Following specification review a few things were changed in v8 of the > virtio-iommu series [1], but have been omitted when merging the base > driver. Add them now: > > * Remove the EXEC flag. > * Add feature bit for the MMIO flag. > * Change domain_bits to domain_range. > * Add NOMEM status flag. > > [1] https://lore.kernel.org/linux-iommu/20190530170929.19366-1-jean-philippe.brucker at arm.com/ > > Fixes: edcd69ab9a32 ("iommu: Add virtio-iommu driver") > Reported-by: Eric Auger <eric.auger at redhat.com> >...

...rtio-iommu.c b/drivers/iommu/virtio-iommu.c > index 9fb38cd3b727..8eaf66770469 100644 > --- a/drivers/iommu/virtio-iommu.c > +++ b/drivers/iommu/virtio-iommu.c > @@ -56,6 +56,7 @@ struct viommu_dev { > struct iommu_domain_geometry geometry; > u64 pgsize_bitmap; > u8 domain_bits; > + u32 probe_size; > }; > > struct viommu_mapping { > @@ -77,8 +78,10 @@ struct viommu_domain { > }; > > struct viommu_endpoint { > + struct device *dev; > struct viommu_dev *viommu; > struct viommu_domain *vdomain; > + struct list_head res...

...s(-) diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c index 9fb38cd3b727..8eaf66770469 100644 --- a/drivers/iommu/virtio-iommu.c +++ b/drivers/iommu/virtio-iommu.c @@ -56,6 +56,7 @@ struct viommu_dev { struct iommu_domain_geometry geometry; u64 pgsize_bitmap; u8 domain_bits; + u32 probe_size; }; struct viommu_mapping { @@ -77,8 +78,10 @@ struct viommu_domain { }; struct viommu_endpoint { + struct device *dev; struct viommu_dev *viommu; struct viommu_domain *vdomain; + struct list_head resv_regions; }; struct viommu_request { @@ -129,6 +132,9 @...

...s(-) diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c index ea0242d8624b..29ce9f4398ef 100644 --- a/drivers/iommu/virtio-iommu.c +++ b/drivers/iommu/virtio-iommu.c @@ -48,6 +48,7 @@ struct viommu_dev { struct iommu_domain_geometry geometry; u64 pgsize_bitmap; u8 domain_bits; + u32 probe_size; }; struct viommu_mapping { @@ -69,8 +70,10 @@ struct viommu_domain { }; struct viommu_endpoint { + struct device *dev; struct viommu_dev *viommu; struct viommu_domain *vdomain; + struct list_head resv_regions; }; struct viommu_request { @@ -121,6 +124,9 @...

...s(-) diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c index 2a9cb6285a1e..c547ebd79c43 100644 --- a/drivers/iommu/virtio-iommu.c +++ b/drivers/iommu/virtio-iommu.c @@ -46,6 +46,7 @@ struct viommu_dev { struct iommu_domain_geometry geometry; u64 pgsize_bitmap; u8 domain_bits; + u32 probe_size; }; struct viommu_mapping { @@ -67,8 +68,10 @@ struct viommu_domain { }; struct viommu_endpoint { + struct device *dev; struct viommu_dev *viommu; struct viommu_domain *vdomain; + struct list_head resv_regions; }; struct viommu_request { @@ -119,6 +122,9 @...

...s(-) diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c index a9c9245e8ba2..3ac4b38eaf19 100644 --- a/drivers/iommu/virtio-iommu.c +++ b/drivers/iommu/virtio-iommu.c @@ -45,6 +45,7 @@ struct viommu_dev { struct iommu_domain_geometry geometry; u64 pgsize_bitmap; u8 domain_bits; + u32 probe_size; }; struct viommu_mapping { @@ -72,6 +73,7 @@ struct viommu_domain { struct viommu_endpoint { struct viommu_dev *viommu; struct viommu_domain *vdomain; + struct list_head resv_regions; }; struct viommu_request { @@ -140,6 +142,10 @@ static int viommu_get_req_si...

...s(-) diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c index feb8c8925c3a..79e0add94e05 100644 --- a/drivers/iommu/virtio-iommu.c +++ b/drivers/iommu/virtio-iommu.c @@ -45,6 +45,7 @@ struct viommu_dev { struct iommu_domain_geometry geometry; u64 pgsize_bitmap; u8 domain_bits; + u32 probe_size; }; struct viommu_mapping { @@ -72,6 +73,7 @@ struct viommu_domain { struct viommu_endpoint { struct viommu_dev *viommu; struct viommu_domain *vdomain; + struct list_head resv_regions; }; struct viommu_request { @@ -139,6 +141,10 @@ static int viommu_get_req_si...

...rtio-iommu.c b/drivers/iommu/virtio-iommu.c > index 9fb38cd3b727..8eaf66770469 100644 > --- a/drivers/iommu/virtio-iommu.c > +++ b/drivers/iommu/virtio-iommu.c > @@ -56,6 +56,7 @@ struct viommu_dev { > struct iommu_domain_geometry geometry; > u64 pgsize_bitmap; > u8 domain_bits; > + u32 probe_size; > }; > > struct viommu_mapping { > @@ -77,8 +78,10 @@ struct viommu_domain { > }; > > struct viommu_endpoint { > + struct device *dev; > struct viommu_dev *viommu; > struct viommu_domain *vdomain; > + struct list_head res...

...rtio-iommu.c b/drivers/iommu/virtio-iommu.c > index ea0242d8624b..29ce9f4398ef 100644 > --- a/drivers/iommu/virtio-iommu.c > +++ b/drivers/iommu/virtio-iommu.c > @@ -48,6 +48,7 @@ struct viommu_dev { > struct iommu_domain_geometry geometry; > u64 pgsize_bitmap; > u8 domain_bits; > + u32 probe_size; > }; > > struct viommu_mapping { > @@ -69,8 +70,10 @@ struct viommu_domain { > }; > > struct viommu_endpoint { > + struct device *dev; > struct viommu_dev *viommu; > struct viommu_domain *vdomain; > + struct list_head res...

...e *vdev; > + > + struct ida domain_ids; > + > + struct virtqueue *vqs[VIOMMU_NR_VQS]; > + spinlock_t request_lock; > + struct list_head requests; > + > + /* Device configuration */ > + struct iommu_domain_geometry geometry; > + u64 pgsize_bitmap; > + u8 domain_bits; > +}; > + > +struct viommu_mapping { > + phys_addr_t paddr; > + struct interval_tree_node iova; > + u32 flags; > +}; > + > +struct viommu_domain { > + struct iommu_domain domain; > + struct viommu_dev *viommu; > + struct mutex mutex; /* protects viommu...

...e *vdev; > + > + struct ida domain_ids; > + > + struct virtqueue *vqs[VIOMMU_NR_VQS]; > + spinlock_t request_lock; > + struct list_head requests; > + > + /* Device configuration */ > + struct iommu_domain_geometry geometry; > + u64 pgsize_bitmap; > + u8 domain_bits; > +}; > + > +struct viommu_mapping { > + phys_addr_t paddr; > + struct interval_tree_node iova; > + u32 flags; > +}; > + > +struct viommu_domain { > + struct iommu_domain domain; > + struct viommu_dev *viommu; > + struct mutex mutex; /* protects viommu...

...o-iommu.c b/drivers/iommu/virtio-iommu.c > index a9c9245e8ba2..3ac4b38eaf19 100644 > --- a/drivers/iommu/virtio-iommu.c > +++ b/drivers/iommu/virtio-iommu.c > @@ -45,6 +45,7 @@ struct viommu_dev { > struct iommu_domain_geometry geometry; > u64 pgsize_bitmap; > u8 domain_bits; > + u32 probe_size; > }; > > struct viommu_mapping { > @@ -72,6 +73,7 @@ struct viommu_domain { > struct viommu_endpoint { > struct viommu_dev *viommu; > struct viommu_domain *vdomain; > + struct list_head resv_regions; > }; > > stru...

...e *vdev; > + > + struct ida domain_ids; > + > + struct virtqueue *vqs[VIOMMU_NR_VQS]; > + spinlock_t request_lock; > + struct list_head requests; > + > + /* Device configuration */ > + struct iommu_domain_geometry geometry; > + u64 pgsize_bitmap; > + u8 domain_bits; > +}; > + > +struct viommu_mapping { > + phys_addr_t paddr; > + struct interval_tree_node iova; > + u32 flags; > +}; > + > +struct viommu_domain { > + struct iommu_domain domain; > + struct viommu_dev *viommu; > + struct mutex mutex; > + unsigned in...

...e *vdev; > + > + struct ida domain_ids; > + > + struct virtqueue *vqs[VIOMMU_NR_VQS]; > + spinlock_t request_lock; > + struct list_head requests; > + > + /* Device configuration */ > + struct iommu_domain_geometry geometry; > + u64 pgsize_bitmap; > + u8 domain_bits; > +}; > + > +struct viommu_mapping { > + phys_addr_t paddr; > + struct interval_tree_node iova; > + u32 flags; > +}; > + > +struct viommu_domain { > + struct iommu_domain domain; > + struct viommu_dev *viommu; > + struct mutex mutex; > + unsigned in...

Implement the virtio-iommu driver, following specification v0.8 [1]. Changes since v2 [2]: * Patches 2-4 allow virtio-iommu to use the PCI transport, since QEMU would like to phase out the MMIO transport. This produces a complex topology where the programming interface of the IOMMU could appear lower than the endpoints that it translates. It's not unheard of (e.g. AMD IOMMU), and the

Implement the virtio-iommu driver, following specification v0.8 [1]. Changes since v2 [2]: * Patches 2-4 allow virtio-iommu to use the PCI transport, since QEMU would like to phase out the MMIO transport. This produces a complex topology where the programming interface of the IOMMU could appear lower than the endpoints that it translates. It's not unheard of (e.g. AMD IOMMU), and the

...rtio-iommu.c b/drivers/iommu/virtio-iommu.c > index feb8c8925c3a..79e0add94e05 100644 > --- a/drivers/iommu/virtio-iommu.c > +++ b/drivers/iommu/virtio-iommu.c > @@ -45,6 +45,7 @@ struct viommu_dev { > struct iommu_domain_geometry geometry; > u64 pgsize_bitmap; > u8 domain_bits; > + u32 probe_size; > }; > > struct viommu_mapping { > @@ -72,6 +73,7 @@ struct viommu_domain { > struct viommu_endpoint { > struct viommu_dev *viommu; > struct viommu_domain *vdomain; > + struct list_head resv_regions; > }; > > struct viommu...