search for: virtio_iommu

Since this is a modern-only device, tag config space fields as having little endian-ness. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- include/uapi/linux/virtio_iommu.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/include/uapi/linux/virtio_iommu.h b/include/uapi/linux/virtio_iommu.h index 48e3c29223b5..237e36a280cb 100644 --- a/include/uapi/linux/virtio_iommu.h +++ b/include/uapi/linux/virtio_iommu.h @@ -18,24 +18,24 @@ #defi...

...tle endian-ness. Signed-off-by: Michael S. Tsirkin <mst at redhat.com> Reviewed-by: Jean-Philippe Brucker <jean-philippe at linaro.org> Reviewed-by: Jean-Philippe Brucker <jean-philippe at linaro.org> Reviewed-by: Cornelia Huck <cohuck at redhat.com> --- include/uapi/linux/virtio_iommu.h | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/include/uapi/linux/virtio_iommu.h b/include/uapi/linux/virtio_iommu.h index 48e3c29223b5..237e36a280cb 100644 --- a/include/uapi/linux/virtio_iommu.h +++ b/include/uapi/linux/virtio_iommu.h @@ -18,24 +18,24 @@ #defi...

....c | 3 + drivers/iommu/Kconfig | 9 + drivers/iommu/Makefile | 1 + drivers/iommu/virtio-iommu-topology.c | 410 ++++++++++++++++++++++++++ drivers/iommu/virtio-iommu.c | 3 + drivers/pci/pci-driver.c | 3 + include/linux/virtio_iommu.h | 18 ++ include/uapi/linux/virtio_iommu.h | 26 ++ 8 files changed, 473 insertions(+) create mode 100644 drivers/iommu/virtio-iommu-topology.c create mode 100644 include/linux/virtio_iommu.h diff --git a/drivers/base/platform.c b/drivers/base/platform.c index b230beb6ccb4..70b1...

...drivers/iommu/Kconfig | 9 + > drivers/iommu/Makefile | 1 + > drivers/iommu/virtio-iommu-topology.c | 410 ++++++++++++++++++++++++++ > drivers/iommu/virtio-iommu.c | 3 + > drivers/pci/pci-driver.c | 3 + > include/linux/virtio_iommu.h | 18 ++ > include/uapi/linux/virtio_iommu.h | 26 ++ > 8 files changed, 473 insertions(+) > create mode 100644 drivers/iommu/virtio-iommu-topology.c > create mode 100644 include/linux/virtio_iommu.h > > diff --git a/drivers/base/platform.c b/drivers/base/platf...

...rm.com/ Fixes: edcd69ab9a32 ("iommu: Add virtio-iommu driver") Reported-by: Eric Auger <eric.auger at redhat.com> Signed-off-by: Jean-Philippe Brucker <jean-philippe at linaro.org> --- drivers/iommu/virtio-iommu.c | 40 ++++++++++++++++++++++--------- include/uapi/linux/virtio_iommu.h | 32 ++++++++++++++----------- 2 files changed, 47 insertions(+), 25 deletions(-) diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c index 433f4d2ee956..80a740df0737 100644 --- a/drivers/iommu/virtio-iommu.c +++ b/drivers/iommu/virtio-iommu.c @@ -2,7 +2,7 @@ /* * Virtio...

...rm.com/ Fixes: edcd69ab9a32 ("iommu: Add virtio-iommu driver") Reported-by: Eric Auger <eric.auger at redhat.com> Signed-off-by: Jean-Philippe Brucker <jean-philippe at linaro.org> --- drivers/iommu/virtio-iommu.c | 40 ++++++++++++++++++++++--------- include/uapi/linux/virtio_iommu.h | 32 ++++++++++++++----------- 2 files changed, 47 insertions(+), 25 deletions(-) diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c index 433f4d2ee956..80a740df0737 100644 --- a/drivers/iommu/virtio-iommu.c +++ b/drivers/iommu/virtio-iommu.c @@ -2,7 +2,7 @@ /* * Virtio...

Add struct definitions for describing endpoints managed by the virtio-iommu. When VIRTIO_IOMMU_F_TOPOLOGY is offered, an array of virtio_iommu_topo_* structures in config space describes the endpoints, identified either by their PCI BDF or their physical MMIO address. Signed-off-by: Jean-Philippe Brucker <jean-philippe at linaro.org> --- include/uapi/linux/virtio_iommu.h | 44 +++++++...

...different page size, probe > endpoint if it supports specific page size otherwise use > global page sizes. > > Signed-off-by: Bharat Bhushan <bbhushan2 at marvell.com> > --- > drivers/iommu/virtio-iommu.c | 33 +++++++++++++++++++++++++++---- > include/uapi/linux/virtio_iommu.h | 7 +++++++ > 2 files changed, 36 insertions(+), 4 deletions(-) > > diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c > index cce329d71fba..c794cb5b7b3e 100644 > --- a/drivers/iommu/virtio-iommu.c > +++ b/drivers/iommu/virtio-iommu.c > @@ -78,6 +78,...

On Wed, 14 Feb 2018 14:53:40 +0000 Jean-Philippe Brucker <jean-philippe.brucker at arm.com> wrote: > When enabling both VFIO and VIRTIO_IOMMU modules, automatically select > VFIO_IOMMU_TYPE1 as well. > > Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker at arm.com> > --- > drivers/vfio/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/vfio/Kconfig b/drivers...

On Wed, 14 Feb 2018 14:53:40 +0000 Jean-Philippe Brucker <jean-philippe.brucker at arm.com> wrote: > When enabling both VFIO and VIRTIO_IOMMU modules, automatically select > VFIO_IOMMU_TYPE1 as well. > > Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker at arm.com> > --- > drivers/vfio/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/vfio/Kconfig b/drivers...

...to Linux v5.7-rc4 > > v3->v4: > - Fix whitespace error > > v2->v3: > - Fixed error return for incompatible endpoint > - __u64 changed to __le64 in header file > > drivers/iommu/virtio-iommu.c | 48 ++++++++++++++++++++++++++++--- > include/uapi/linux/virtio_iommu.h | 7 +++++ > 2 files changed, 51 insertions(+), 4 deletions(-) > > diff --git a/drivers/iommu/virtio-iommu.c b/drivers/iommu/virtio-iommu.c > index d5cac4f46ca5..9513d2ab819e 100644 > --- a/drivers/iommu/virtio-iommu.c > +++ b/drivers/iommu/virtio-iommu.c > @@ -78,6 +78,7 @...

We copied the virtio_iommu_config from the virtio-iommu specification, which declares the fields using little-endian annotations (for example le32). Unfortunately this causes sparse to warn about comparison between little- and cpu-endian, because of the typecheck() in virtio_cread(): drivers/iommu/virtio-iommu.c:1024:9: spa...

...r > > > > > > v2->v3: > > > - Fixed error return for incompatible endpoint > > > - __u64 changed to __le64 in header file > > > > > > drivers/iommu/virtio-iommu.c | 48 ++++++++++++++++++++++++++++--- > > > include/uapi/linux/virtio_iommu.h | 7 +++++ > > > 2 files changed, 51 insertions(+), 4 deletions(-) > > > > > > diff --git a/drivers/iommu/virtio-iommu.c > > > b/drivers/iommu/virtio-iommu.c index d5cac4f46ca5..9513d2ab819e 100644 > > > --- a/drivers/iommu/virtio-iommu.c > > &g...

...rs/iommu/Kconfig | 10 + > drivers/iommu/Makefile | 1 + > drivers/iommu/virtio-iommu-topology.c | 343 ++++++++++++++++++++++++++ > drivers/iommu/virtio-iommu.c | 3 + > include/linux/virt_iommu.h | 19 ++ > include/uapi/linux/virtio_iommu.h | 26 ++ > 7 files changed, 404 insertions(+) > create mode 100644 drivers/iommu/virtio-iommu-topology.c > create mode 100644 include/linux/virt_iommu.h > > diff --git a/MAINTAINERS b/MAINTAINERS > index fcd79fc38928..65a03ce53096 100644 > --- a/MAINTAINERS > +++ b...

...ems that there is no need to map the MSI > doorbell in the virtio-iommu, because MSIs bypass it. > > Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker at arm.com> > --- > drivers/iommu/virtio-iommu.c | 147 ++++++++++++++++++++++++++++-- > include/uapi/linux/virtio_iommu.h | 39 ++++++++ > 2 files changed, 180 insertions(+), 6 deletions(-) > > 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 +5...

...mmu/Kconfig | 10 + > drivers/iommu/Makefile | 1 + > drivers/iommu/virtio-iommu-topology.c | 343 > ++++++++++++++++++++++++++ > drivers/iommu/virtio-iommu.c | 3 + > include/linux/virt_iommu.h | 19 ++ > include/uapi/linux/virtio_iommu.h | 26 ++ > 7 files changed, 404 insertions(+) > create mode 100644 drivers/iommu/virtio-iommu-topology.c > create mode 100644 include/linux/virt_iommu.h > > diff --git a/MAINTAINERS b/MAINTAINERS > index fcd79fc38928..65a03ce53096 100644 > --- a/MAINTAINERS > +++ b...

....c | 3 + drivers/iommu/Kconfig | 9 + drivers/iommu/Makefile | 1 + drivers/iommu/virtio-iommu-topology.c | 410 ++++++++++++++++++++++++++ drivers/iommu/virtio-iommu.c | 3 + drivers/pci/pci-driver.c | 3 + include/linux/virtio_iommu.h | 18 ++ include/uapi/linux/virtio_iommu.h | 26 ++ 8 files changed, 473 insertions(+) create mode 100644 drivers/iommu/virtio-iommu-topology.c create mode 100644 include/linux/virtio_iommu.h [1] firecracker: https://github.com/firecracker-microvm/firecracker microvm: https...

....c | 3 + drivers/iommu/Kconfig | 9 + drivers/iommu/Makefile | 1 + drivers/iommu/virtio-iommu-topology.c | 410 ++++++++++++++++++++++++++ drivers/iommu/virtio-iommu.c | 3 + drivers/pci/pci-driver.c | 3 + include/linux/virtio_iommu.h | 18 ++ include/uapi/linux/virtio_iommu.h | 26 ++ 8 files changed, 473 insertions(+) create mode 100644 drivers/iommu/virtio-iommu-topology.c create mode 100644 include/linux/virtio_iommu.h [1] firecracker: https://github.com/firecracker-microvm/firecracker microvm: https...

...The built-in description is an array in the virtio config space. The driver parses the config space early and postpones endpoint probe until the virtio-iommu device is ready. Each element in the array describes either a PCI range or a single MMIO endpoint, and their associated endpoint IDs: struct virtio_iommu_topo_pci_range { __le16 type; /* 1: PCI range */ __le16 hierarchy; /* PCI domain number */ __le16 requester_start; /* First BDF */ __le16 requester_end; /* Last BDF */ __le32 endpoint_start; /* First endpoint ID */ }; struct virtio_iommu_topo_endpoint { __le16 type; /* 2: Endpoint */...

...mmu/Kconfig | 10 + > drivers/iommu/Makefile | 1 + > drivers/iommu/virtio-iommu-topology.c | 343 > ++++++++++++++++++++++++++ > drivers/iommu/virtio-iommu.c | 3 + > include/linux/virt_iommu.h | 19 ++ > include/uapi/linux/virtio_iommu.h | 26 ++ > 7 files changed, 404 insertions(+) > create mode 100644 drivers/iommu/virtio-iommu-topology.c > create mode 100644 include/linux/virt_iommu.h > > diff --git a/MAINTAINERS b/MAINTAINERS > index fcd79fc38928..65a03ce53096 100644 > --- a/MAINTAINERS > +++ b...