Re: [PATCH v4 07/14] iommufd/viommu: Add iommufd_viommu_get_vdev_id helper

From: Baolu Lu
Date: Sun Jan 05 2025 - 21:53:15 EST


On 1/4/25 03:43, Nicolin Chen wrote:
This is a reverse search v.s. iommufd_viommu_find_dev, as drivers may want
to convert a struct device pointer (physical) to its virtual device ID for
an event injection to the user space VM.

Again, this avoids exposing more core structures to the drivers, than the
iommufd_viommu alone.

Signed-off-by: Nicolin Chen<nicolinc@xxxxxxxxxx>
---
include/linux/iommufd.h | 8 ++++++++
drivers/iommu/iommufd/driver.c | 20 ++++++++++++++++++++
2 files changed, 28 insertions(+)

Reviewed-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>