On Fri, Sep 04, 2020 at 06:24:12PM +0200, Auger Eric wrote: > Hi, > > On 8/21/20 3:15 PM, Jean-Philippe Brucker wrote: > > Add a topology description to the virtio-iommu driver and enable x86 > > platforms. > > > > Since [v2] we have made some progress on adding ACPI support for > > virtio-iommu, which is the preferred boot method on x86. It will be a > > new vendor-agnostic table describing para-virtual topologies in a > > minimal format. However some platforms don't use either ACPI or DT for > > booting (for example microvm), and will need the alternative topology > > description method proposed here. In addition, since the process to get > > a new ACPI table will take a long time, this provides a boot method even > > to ACPI-based platforms, if only temporarily for testing and > > development. > > > > v3: > > * Add patch 1 that moves virtio-iommu to a subfolder. > > * Split the rest: > > * Patch 2 adds topology-helper.c, which will be shared with the ACPI > > support. > > * Patch 4 adds definitions. > > * Patch 5 adds parser in topology.c. > > * Address other comments. > > > > Linux and QEMU patches available at: > > https://jpbrucker.net/git/linux virtio-iommu/devel > > https://jpbrucker.net/git/qemu virtio-iommu/devel > I have tested that series with above QEMU branch on ARM with virtio-net > and virtio-blk translated devices in non DT mode. > > It works for me: > Tested-by: Eric Auger <eric.auger@xxxxxxxxxx> > > Thanks > > Eric OK so this looks good. Can you pls repost with the minor tweak suggested and all acks included, and I will queue this? Thanks! > > > > [spec] https://lists.oasis-open.org/archives/virtio-dev/202008/msg00067.html > > [v2] https://lore.kernel.org/linux-iommu/20200228172537.377327-1-jean-philippe@xxxxxxxxxx/ > > [v1] https://lore.kernel.org/linux-iommu/20200214160413.1475396-1-jean-philippe@xxxxxxxxxx/ > > [rfc] https://lore.kernel.org/linux-iommu/20191122105000.800410-1-jean-philippe@xxxxxxxxxx/ > > > > Jean-Philippe Brucker (6): > > iommu/virtio: Move to drivers/iommu/virtio/ > > iommu/virtio: Add topology helpers > > PCI: Add DMA configuration for virtual platforms > > iommu/virtio: Add topology definitions > > iommu/virtio: Support topology description in config space > > iommu/virtio: Enable x86 support > > > > drivers/iommu/Kconfig | 18 +- > > drivers/iommu/Makefile | 3 +- > > drivers/iommu/virtio/Makefile | 4 + > > drivers/iommu/virtio/topology-helpers.h | 50 +++++ > > include/linux/virt_iommu.h | 15 ++ > > include/uapi/linux/virtio_iommu.h | 44 ++++ > > drivers/iommu/virtio/topology-helpers.c | 196 ++++++++++++++++ > > drivers/iommu/virtio/topology.c | 259 ++++++++++++++++++++++ > > drivers/iommu/{ => virtio}/virtio-iommu.c | 4 + > > drivers/pci/pci-driver.c | 5 + > > MAINTAINERS | 3 +- > > 11 files changed, 597 insertions(+), 4 deletions(-) > > create mode 100644 drivers/iommu/virtio/Makefile > > create mode 100644 drivers/iommu/virtio/topology-helpers.h > > create mode 100644 include/linux/virt_iommu.h > > create mode 100644 drivers/iommu/virtio/topology-helpers.c > > create mode 100644 drivers/iommu/virtio/topology.c > > rename drivers/iommu/{ => virtio}/virtio-iommu.c (99%) > > _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
