Hi Christophe, Sorry, I didn't have time to look at your other series yet and likely the same for this one with the upcoming KVM Forum... :-\ Anyway, for any VFIO related patch, don't forget to Cc the maintainer, Alex Williamson <alex.william...@redhat.com> .
Cheers, -- Greg On Thu, 24 Oct 2019 15:28:03 +0200 christophe lombard <clomb...@linux.vnet.ibm.com> wrote: > This series adds support for the OpenCAPI devices for vfio pci. > > It builds on top of the existing ocxl driver + > http://patchwork.ozlabs.org/patch/1177999/ > > VFIO is a Linux kernel driver framework used by QEMU to make devices > directly assignable to virtual machines. > > All OpenCAPI devices on the same PCI slot will all be grouped and > assigned to the same guest. > > - Assume these are the devices you want to assign > 0007:00:00.0 Processing accelerators: IBM Device 062b > 0007:00:00.1 Processing accelerators: IBM Device 062b > > - Two Devices in the group > $ ls /sys/bus/pci/devices/0007\:00\:00.0/iommu_group/devices/ > 0007:00:00.0 0007:00:00.1 > > - Find vendor & device ID > $ lspci -n -s 0007:00:00 > 0007:00:00.0 1200: 1014:062b > 0007:00:00.1 1200: 1014:062b > > - Unbind from the current ocxl device driver if already loaded > $ rmmod ocxl > > - Load vfio-pci if it's not already done. > $ modprobe vfio-pci > > - Bind to vfio-pci > $ echo 1014 062b > /sys/bus/pci/drivers/vfio-pci/new_id > > This will result in a new device node "/dev/vfio/7", which will be > use by QEMU to setup the devices for passthrough. > > - Pass to qemu using -device vfio-pci > -device vfio-pci,multifunction=on,host=0007:00:00.0,addr=2.0 -device > vfio-pci,multifunction=on,host=0007:00:00.1,addr=2.1 > > It has been tested in a bare-metal and QEMU environment using the memcpy > and the AFP AFUs. > > christophe lombard (2): > powerpc/powernv: Register IOMMU group for OpenCAPI devices > vfio/pci: Introduce OpenCAPI devices support. > > arch/powerpc/platforms/powernv/ocxl.c | 164 ++++++++++--- > arch/powerpc/platforms/powernv/pci-ioda.c | 19 +- > arch/powerpc/platforms/powernv/pci.h | 13 + > drivers/vfio/pci/Kconfig | 7 + > drivers/vfio/pci/Makefile | 1 + > drivers/vfio/pci/vfio_pci.c | 19 ++ > drivers/vfio/pci/vfio_pci_ocxl.c | 287 ++++++++++++++++++++++ > drivers/vfio/vfio.c | 25 ++ > include/linux/vfio.h | 13 + > include/uapi/linux/vfio.h | 22 ++ > 10 files changed, 530 insertions(+), 40 deletions(-) > create mode 100644 drivers/vfio/pci/vfio_pci_ocxl.c >