similar to: [PATCH] iommu/virtio: Update to most recent specification

Implement the virtio-iommu driver, following specification v0.12 [1]. Since last version [2] we've worked on improving the specification, which resulted in the following changes to the interface: * Remove the EXEC flag. * Add feature bit for the MMIO flag. * Change domain_bits to domain_range. Given that there were small changes to patch 5/7, I removed the review and test tags. Please find

On Mon, Jul 22, 2019 at 03:40:07PM +0100, 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.

Hi Jean, On 7/22/19 4:40 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]

Implement the virtio-iommu driver, following specification v0.9 [1]. Since v4 [2] I fixed the issues reported by Eric, and added Reviewed-by from Eric and Rob. Thanks! I changed the specification to fix one inconsistency discussed in v4. That the device fills the probe buffer with zeroes is now a "SHOULD" instead of a "MAY", since it's the only way for the driver to know

Implement the virtio-iommu driver, following specification v0.9 [1]. Since v4 [2] I fixed the issues reported by Eric, and added Reviewed-by from Eric and Rob. Thanks! I changed the specification to fix one inconsistency discussed in v4. That the device fills the probe buffer with zeroes is now a "SHOULD" instead of a "MAY", since it's the only way for the driver to know

Implement the base virtio-iommu driver, following version 0.7 of the specification [1]. Changes since last version [2]: * Address comments, thanks again for the review. * As suggested, add a DT binding description in patch 1. * Depend on VIRTIO_MMIO=y to fix a build failure? * Switch to v0.7 of the spec, which changes resv_mem parameters and adds an MMIO flag. These are trivial but not backward

Implement the base virtio-iommu driver, following version 0.7 of the specification [1]. Changes since last version [2]: * Address comments, thanks again for the review. * As suggested, add a DT binding description in patch 1. * Depend on VIRTIO_MMIO=y to fix a build failure? * Switch to v0.7 of the spec, which changes resv_mem parameters and adds an MMIO flag. These are trivial but not backward

Implement the virtio-iommu driver, following specification v0.8 [1]. Changes since v3 [2]: * Rebase onto v4.20-rc2. Patch 3 now touches drivers/of/base.c instead of drivers/pci/of.c, since the map_rid() function has moved. * Removed the request timeout, that depended on DEBUG. * Other small fixes addressing comments on v3. You can find Linux driver and kvmtool device on my virtio-iommu/v0.8.1

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

On Fri, Oct 12, 2018 at 03:59:15PM +0100, Jean-Philippe Brucker wrote: > The virtio IOMMU is a para-virtualized device, allowing to send IOMMU > requests such as map/unmap over virtio transport without emulating page > tables. This implementation handles ATTACH, DETACH, MAP and UNMAP > requests. > > The bulk of the code transforms calls coming from the IOMMU API into >

On Fri, Oct 12, 2018 at 03:59:15PM +0100, Jean-Philippe Brucker wrote: > The virtio IOMMU is a para-virtualized device, allowing to send IOMMU > requests such as map/unmap over virtio transport without emulating page > tables. This implementation handles ATTACH, DETACH, MAP and UNMAP > requests. > > The bulk of the code transforms calls coming from the IOMMU API into >

The virtio IOMMU is a para-virtualized device, allowing to send IOMMU requests such as map/unmap over virtio transport without emulating page tables. This implementation handles ATTACH, DETACH, MAP and UNMAP requests. The bulk of the code transforms calls coming from the IOMMU API into corresponding virtio requests. Mappings are kept in an interval tree instead of page tables. A little more work

Implement the virtio-iommu driver, following specification v0.9 [1]. Only minor changes since v5 [2]. I fixed issues reported by Michael and added tags from Eric and Bharat. Thanks! You can find Linux driver and kvmtool device on v0.9 branches [3], module and x86 support on virtio-iommu/devel. Also tested with Eric's QEMU device [4]. [1] Virtio-iommu specification v0.9, sources and pdf

Implement the virtio-iommu driver, following specification v0.9 [1]. Only minor changes since v5 [2]. I fixed issues reported by Michael and added tags from Eric and Bharat. Thanks! You can find Linux driver and kvmtool device on v0.9 branches [3], module and x86 support on virtio-iommu/devel. Also tested with Eric's QEMU device [4]. [1] Virtio-iommu specification v0.9, sources and pdf

Implement the virtio-iommu driver following version 0.5 of the specification [1]. Previous version of this code was sent back in April [2], implementing the first public RFC. Since then there has been lots of progress and discussion on the specification side, and I think the driver is in a good shape now. The reason patches 1-3 are only RFC is that I'm waiting on feedback from the Virtio TC

Implement the virtio-iommu driver following version 0.5 of the specification [1]. Previous version of this code was sent back in April [2], implementing the first public RFC. Since then there has been lots of progress and discussion on the specification side, and I think the driver is in a good shape now. The reason patches 1-3 are only RFC is that I'm waiting on feedback from the Virtio TC

Implement the virtio-iommu driver following version 0.6 of the specification [1]. Previous version, RFCv2, was sent in November [2]. This version addresses Eric's comments and changes the device number. (Since last week I also tested and fixed the probe/release functions, they now use devm properly.) I did not include ACPI support because the next IORT specifications isn't ready yet (even

Implement the virtio-iommu driver following version 0.6 of the specification [1]. Previous version, RFCv2, was sent in November [2]. This version addresses Eric's comments and changes the device number. (Since last week I also tested and fixed the probe/release functions, they now use devm properly.) I did not include ACPI support because the next IORT specifications isn't ready yet (even

On 2020-04-01 12:38 pm, Bharat Bhushan wrote: > Different endpoint can support 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 |