Hi, Changes from v4: https://lore.kernel.org/qemu-devel/[email protected]/ -Addressed feedback and picked up tags. Thanks! -Fixed missing !accel check in smmuv3_accel_alloc_veventq(patch #3)
I think this is now ready for inclusion. Please take a look and let me know. Thanks, Shameer --- Background(From v2): When accel=on is enabled for an SMMUv3 instance, the host hardware SMMUv3 may generate Stage-1 (S1) event notifications that are intended for the vIOMMU instance in userspace. This series adds QEMU support for receiving such host events through the vEVENTQ interface and propagating them to the guest. The implementation uses the vEVENTQ support provided by the IOMMUFD subsystem in the kernel. I have tested this on a Grace platform using some hacks to generate events. Further testing and feedback are welcome. --- Nicolin Chen (2): backends/iommufd: Introduce iommufd_backend_alloc_veventq hw/arm/smmuv3-accel: Allocate vEVENTQ for accelerated SMMUv3 devices Shameer Kolothum (3): hw/arm/smmuv3-accel: Add viommu free helper hw/arm/smmuv3: Introduce a helper function for event propagation hw/arm/smmuv3-accel: Read and propagate host vIOMMU events backends/iommufd.c | 31 +++++++++ backends/trace-events | 1 + hw/arm/smmuv3-accel.c | 144 ++++++++++++++++++++++++++++++++++++--- hw/arm/smmuv3-accel.h | 8 +++ hw/arm/smmuv3-internal.h | 4 ++ hw/arm/smmuv3.c | 25 +++++-- hw/arm/trace-events | 2 +- include/system/iommufd.h | 12 ++++ 8 files changed, 212 insertions(+), 15 deletions(-) -- 2.43.0
