tree 4cf63e00dba7a56a548e6e896b84f239621973cb
parent 9fc9dbac61ddde7d8df37e84c8e02cec249d3222
author Suravee Suthikulpanit <suravee.suthikulpanit@amd.com> 1727458152 -0500
committer Michael S. Tsirkin <mst@redhat.com> 1730754204 -0500

amd_iommu: Send notification when invalidate interrupt entry cache

In order to support AMD IOMMU interrupt remapping emulation with PCI
pass-through devices, QEMU needs to notify VFIO when guest IOMMU driver
updates and invalidate the guest interrupt remapping table (IRT), and
communicate information so that the host IOMMU driver can update
the shadowed interrupt remapping table in the host IOMMU.

Therefore, send notification when guest IOMMU emulates the IRT
invalidation commands.

Reviewed-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Santosh Shukla <santosh.shukla@amd.com>
Message-Id: <20240927172913.121477-5-santosh.shukla@amd.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>