diff options
| author | Jason Wang <jasowang@redhat.com> | 2023-02-23 14:59:22 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2023-03-02 19:13:52 -0500 |
| commit | 7caebbf9ea534dc11ff52ba38f982da4962e6051 (patch) | |
| tree | 8ecb2e846c132dd914993c0fcda57b45b23dfd4c /softmmu | |
| parent | 09adb0e021207b60a0c51a68939b4539d98d3ef3 (diff) | |
memory: introduce memory_region_unmap_iommu_notifier_range()
This patch introduces a new helper to unmap the range of a specific
IOMMU notifier.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230223065924.42503-4-jasowang@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'softmmu')
| -rw-r--r-- | softmmu/memory.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/softmmu/memory.c b/softmmu/memory.c index da7d846619..4699ba55ec 100644 --- a/softmmu/memory.c +++ b/softmmu/memory.c @@ -1996,6 +1996,19 @@ void memory_region_notify_iommu_one(IOMMUNotifier *notifier, } } +void memory_region_unmap_iommu_notifier_range(IOMMUNotifier *n) +{ + IOMMUTLBEvent event; + + event.type = IOMMU_NOTIFIER_UNMAP; + event.entry.target_as = &address_space_memory; + event.entry.iova = n->start; + event.entry.perm = IOMMU_NONE; + event.entry.addr_mask = n->end - n->start; + + memory_region_notify_iommu_one(n, &event); +} + void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr, int iommu_idx, IOMMUTLBEvent event) |