diff options
| author | Eugenio Pérez <eperezma@redhat.com> | 2020-11-16 17:55:04 +0100 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2020-12-08 13:48:57 -0500 |
| commit | b68ba1ca57677acf870d5ab10579e6105c1f5338 (patch) | |
| tree | 4eee168fcca4e55ebf285437e3c96d20b6ef9b83 /include/exec | |
| parent | 5039caf3c449c49e625d34e134463260cf8e00e0 (diff) | |
memory: Add IOMMU_NOTIFIER_DEVIOTLB_UNMAP IOMMUTLBNotificationType
This allows us to differentiate between regular IOMMU map/unmap events
and DEVIOTLB unmap. Doing so, notifiers that only need device IOTLB
invalidations will not receive regular IOMMU unmappings.
Adapt intel and vhost to use it.
Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20201116165506.31315-4-eperezma@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/memory.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h index e86b5e92da..521d9901d7 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -97,9 +97,14 @@ typedef enum { IOMMU_NOTIFIER_UNMAP = 0x1, /* Notify entry changes (newly created entries) */ IOMMU_NOTIFIER_MAP = 0x2, + /* Notify changes on device IOTLB entries */ + IOMMU_NOTIFIER_DEVIOTLB_UNMAP = 0x04, } IOMMUNotifierFlag; -#define IOMMU_NOTIFIER_ALL (IOMMU_NOTIFIER_MAP | IOMMU_NOTIFIER_UNMAP) +#define IOMMU_NOTIFIER_IOTLB_EVENTS (IOMMU_NOTIFIER_MAP | IOMMU_NOTIFIER_UNMAP) +#define IOMMU_NOTIFIER_DEVIOTLB_EVENTS IOMMU_NOTIFIER_DEVIOTLB_UNMAP +#define IOMMU_NOTIFIER_ALL (IOMMU_NOTIFIER_IOTLB_EVENTS | \ + IOMMU_NOTIFIER_DEVIOTLB_EVENTS) struct IOMMUNotifier; typedef void (*IOMMUNotify)(struct IOMMUNotifier *notifier, |