On Tue, Feb 25, 2025 at 09:25:41AM -0800, Nicolin Chen wrote:
Aside from the IOPF framework, iommufd provides an additional pathway to report hardware events, via the vEVENTQ of vIOMMU infrastructure.
Define an iommu_vevent_arm_smmuv3 uAPI structure, and report stage-1 events in the threaded IRQ handler. Also, add another four event record types that can be forwarded to a VM.
Reviewed-by: Kevin Tian kevin.tian@intel.com Reviewed-by: Jason Gunthorpe jgg@nvidia.com Reviewed-by: Pranjal Shrivastavat praan@google.com Signed-off-by: Nicolin Chen nicolinc@nvidia.com
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.h | 7 +++ include/uapi/linux/iommufd.h | 23 +++++++ .../arm/arm-smmu-v3/arm-smmu-v3-iommufd.c | 17 ++++++ drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 60 +++++++++++-------- 4 files changed, 82 insertions(+), 25 deletions(-)
Apologies for my spelling error in [1]. It's supposed to be:
Reviewed-by: Pranjal Shrivastava praan@google.com
Correct spelling in [2].
Thanks, Praan
[1] https://lore.kernel.org/all/Z73zvIbsXzJMCaNt@google.com/ [2] https://lore.kernel.org/all/Z730M3XptvDRObBp@google.com/