memory: Add IOMMUTLBEvent
This way we can tell between regular IOMMUTLBEntry (entry of IOMMU hardware) and notifications. In the notifications, we set explicitly if it is a MAPs or an UNMAP, instead of trusting in entry permissions to differentiate them. 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: <20201116165506.31315-3-eperezma@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
parent
3b5ebf8532
commit
5039caf3c4
@ -465,14 +465,15 @@ IOMMUMemoryRegion *smmu_iommu_mr(SMMUState *s, uint32_t sid)
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/* Unmap the whole notifier's range */
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static void smmu_unmap_notifier_range(IOMMUNotifier *n)
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{
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IOMMUTLBEntry entry;
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IOMMUTLBEvent event;
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entry.target_as = &address_space_memory;
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entry.iova = n->start;
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entry.perm = IOMMU_NONE;
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entry.addr_mask = n->end - n->start;
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event.type = IOMMU_NOTIFIER_UNMAP;
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event.entry.target_as = &address_space_memory;
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event.entry.iova = n->start;
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event.entry.perm = IOMMU_NONE;
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event.entry.addr_mask = n->end - n->start;
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memory_region_notify_iommu_one(n, &entry);
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memory_region_notify_iommu_one(n, &event);
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}
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/* Unmap all notifiers attached to @mr */
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@ -800,7 +800,7 @@ static void smmuv3_notify_iova(IOMMUMemoryRegion *mr,
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uint8_t tg, uint64_t num_pages)
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{
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SMMUDevice *sdev = container_of(mr, SMMUDevice, iommu);
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IOMMUTLBEntry entry;
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IOMMUTLBEvent event;
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uint8_t granule = tg;
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if (!tg) {
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@ -823,12 +823,13 @@ static void smmuv3_notify_iova(IOMMUMemoryRegion *mr,
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granule = tt->granule_sz;
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}
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entry.target_as = &address_space_memory;
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entry.iova = iova;
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entry.addr_mask = num_pages * (1 << granule) - 1;
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entry.perm = IOMMU_NONE;
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event.type = IOMMU_NOTIFIER_UNMAP;
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event.entry.target_as = &address_space_memory;
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event.entry.iova = iova;
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event.entry.addr_mask = num_pages * (1 << granule) - 1;
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event.entry.perm = IOMMU_NONE;
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memory_region_notify_iommu_one(n, &entry);
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memory_region_notify_iommu_one(n, &event);
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}
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/* invalidate an asid/iova range tuple in all mr's */
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@ -1073,7 +1073,7 @@ static int vtd_iova_to_slpte(IntelIOMMUState *s, VTDContextEntry *ce,
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}
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}
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typedef int (*vtd_page_walk_hook)(IOMMUTLBEntry *entry, void *private);
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typedef int (*vtd_page_walk_hook)(IOMMUTLBEvent *event, void *private);
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/**
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* Constant information used during page walking
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@ -1094,11 +1094,12 @@ typedef struct {
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uint16_t domain_id;
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} vtd_page_walk_info;
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static int vtd_page_walk_one(IOMMUTLBEntry *entry, vtd_page_walk_info *info)
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static int vtd_page_walk_one(IOMMUTLBEvent *event, vtd_page_walk_info *info)
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{
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VTDAddressSpace *as = info->as;
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vtd_page_walk_hook hook_fn = info->hook_fn;
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void *private = info->private;
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IOMMUTLBEntry *entry = &event->entry;
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DMAMap target = {
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.iova = entry->iova,
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.size = entry->addr_mask,
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@ -1107,7 +1108,7 @@ static int vtd_page_walk_one(IOMMUTLBEntry *entry, vtd_page_walk_info *info)
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};
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DMAMap *mapped = iova_tree_find(as->iova_tree, &target);
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if (entry->perm == IOMMU_NONE && !info->notify_unmap) {
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if (event->type == IOMMU_NOTIFIER_UNMAP && !info->notify_unmap) {
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trace_vtd_page_walk_one_skip_unmap(entry->iova, entry->addr_mask);
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return 0;
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}
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@ -1115,7 +1116,7 @@ static int vtd_page_walk_one(IOMMUTLBEntry *entry, vtd_page_walk_info *info)
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assert(hook_fn);
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/* Update local IOVA mapped ranges */
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if (entry->perm) {
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if (event->type == IOMMU_NOTIFIER_MAP) {
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if (mapped) {
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/* If it's exactly the same translation, skip */
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if (!memcmp(mapped, &target, sizeof(target))) {
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@ -1141,19 +1142,21 @@ static int vtd_page_walk_one(IOMMUTLBEntry *entry, vtd_page_walk_info *info)
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int ret;
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/* Emulate an UNMAP */
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event->type = IOMMU_NOTIFIER_UNMAP;
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entry->perm = IOMMU_NONE;
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trace_vtd_page_walk_one(info->domain_id,
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entry->iova,
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entry->translated_addr,
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entry->addr_mask,
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entry->perm);
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ret = hook_fn(entry, private);
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ret = hook_fn(event, private);
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if (ret) {
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return ret;
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}
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/* Drop any existing mapping */
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iova_tree_remove(as->iova_tree, &target);
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/* Recover the correct permission */
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/* Recover the correct type */
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event->type = IOMMU_NOTIFIER_MAP;
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entry->perm = cache_perm;
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}
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}
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@ -1170,7 +1173,7 @@ static int vtd_page_walk_one(IOMMUTLBEntry *entry, vtd_page_walk_info *info)
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trace_vtd_page_walk_one(info->domain_id, entry->iova,
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entry->translated_addr, entry->addr_mask,
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entry->perm);
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return hook_fn(entry, private);
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return hook_fn(event, private);
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}
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/**
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@ -1191,7 +1194,7 @@ static int vtd_page_walk_level(dma_addr_t addr, uint64_t start,
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uint32_t offset;
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uint64_t slpte;
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uint64_t subpage_size, subpage_mask;
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IOMMUTLBEntry entry;
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IOMMUTLBEvent event;
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uint64_t iova = start;
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uint64_t iova_next;
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int ret = 0;
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@ -1245,13 +1248,15 @@ static int vtd_page_walk_level(dma_addr_t addr, uint64_t start,
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*
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* In either case, we send an IOTLB notification down.
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*/
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entry.target_as = &address_space_memory;
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entry.iova = iova & subpage_mask;
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entry.perm = IOMMU_ACCESS_FLAG(read_cur, write_cur);
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entry.addr_mask = ~subpage_mask;
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event.entry.target_as = &address_space_memory;
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event.entry.iova = iova & subpage_mask;
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event.entry.perm = IOMMU_ACCESS_FLAG(read_cur, write_cur);
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event.entry.addr_mask = ~subpage_mask;
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/* NOTE: this is only meaningful if entry_valid == true */
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entry.translated_addr = vtd_get_slpte_addr(slpte, info->aw);
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ret = vtd_page_walk_one(&entry, info);
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event.entry.translated_addr = vtd_get_slpte_addr(slpte, info->aw);
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event.type = event.entry.perm ? IOMMU_NOTIFIER_MAP :
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IOMMU_NOTIFIER_UNMAP;
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ret = vtd_page_walk_one(&event, info);
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}
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if (ret < 0) {
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@ -1430,10 +1435,10 @@ static int vtd_dev_to_context_entry(IntelIOMMUState *s, uint8_t bus_num,
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return 0;
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}
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static int vtd_sync_shadow_page_hook(IOMMUTLBEntry *entry,
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static int vtd_sync_shadow_page_hook(IOMMUTLBEvent *event,
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void *private)
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{
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memory_region_notify_iommu((IOMMUMemoryRegion *)private, 0, *entry);
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memory_region_notify_iommu(private, 0, *event);
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return 0;
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}
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@ -1993,14 +1998,17 @@ static void vtd_iotlb_page_invalidate_notify(IntelIOMMUState *s,
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* page tables. We just deliver the PSI down to
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* invalidate caches.
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*/
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IOMMUTLBEntry entry = {
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IOMMUTLBEvent event = {
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.type = IOMMU_NOTIFIER_UNMAP,
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.entry = {
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.target_as = &address_space_memory,
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.iova = addr,
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.translated_addr = 0,
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.addr_mask = size - 1,
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.perm = IOMMU_NONE,
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},
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};
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memory_region_notify_iommu(&vtd_as->iommu, 0, entry);
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memory_region_notify_iommu(&vtd_as->iommu, 0, event);
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}
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}
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}
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@ -2412,7 +2420,7 @@ static bool vtd_process_device_iotlb_desc(IntelIOMMUState *s,
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VTDInvDesc *inv_desc)
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{
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VTDAddressSpace *vtd_dev_as;
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IOMMUTLBEntry entry;
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IOMMUTLBEvent event;
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struct VTDBus *vtd_bus;
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hwaddr addr;
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uint64_t sz;
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@ -2460,12 +2468,13 @@ static bool vtd_process_device_iotlb_desc(IntelIOMMUState *s,
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sz = VTD_PAGE_SIZE;
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}
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entry.target_as = &vtd_dev_as->as;
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entry.addr_mask = sz - 1;
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entry.iova = addr;
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entry.perm = IOMMU_NONE;
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entry.translated_addr = 0;
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memory_region_notify_iommu(&vtd_dev_as->iommu, 0, entry);
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event.type = IOMMU_NOTIFIER_UNMAP;
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event.entry.target_as = &vtd_dev_as->as;
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event.entry.addr_mask = sz - 1;
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event.entry.iova = addr;
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event.entry.perm = IOMMU_NONE;
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event.entry.translated_addr = 0;
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memory_region_notify_iommu(&vtd_dev_as->iommu, 0, event);
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done:
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return true;
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@ -3485,19 +3494,20 @@ static void vtd_address_space_unmap(VTDAddressSpace *as, IOMMUNotifier *n)
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size = remain = end - start + 1;
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while (remain >= VTD_PAGE_SIZE) {
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IOMMUTLBEntry entry;
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IOMMUTLBEvent event;
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uint64_t mask = get_naturally_aligned_size(start, remain, s->aw_bits);
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assert(mask);
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entry.iova = start;
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entry.addr_mask = mask - 1;
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entry.target_as = &address_space_memory;
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entry.perm = IOMMU_NONE;
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event.type = IOMMU_NOTIFIER_UNMAP;
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event.entry.iova = start;
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event.entry.addr_mask = mask - 1;
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event.entry.target_as = &address_space_memory;
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event.entry.perm = IOMMU_NONE;
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/* This field is meaningless for unmap */
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entry.translated_addr = 0;
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event.entry.translated_addr = 0;
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memory_region_notify_iommu_one(n, &entry);
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memory_region_notify_iommu_one(n, &event);
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start += mask;
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remain -= mask;
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@ -3533,9 +3543,9 @@ static void vtd_address_space_refresh_all(IntelIOMMUState *s)
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vtd_switch_address_space_all(s);
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}
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static int vtd_replay_hook(IOMMUTLBEntry *entry, void *private)
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static int vtd_replay_hook(IOMMUTLBEvent *event, void *private)
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{
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memory_region_notify_iommu_one((IOMMUNotifier *)private, entry);
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memory_region_notify_iommu_one(private, event);
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return 0;
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}
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@ -82,8 +82,10 @@ static void tz_mpc_iommu_notify(TZMPC *s, uint32_t lutidx,
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/* Called when the LUT word at lutidx has changed from oldlut to newlut;
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* must call the IOMMU notifiers for the changed blocks.
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*/
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IOMMUTLBEntry entry = {
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IOMMUTLBEvent event = {
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.entry = {
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.addr_mask = s->blocksize - 1,
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}
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};
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hwaddr addr = lutidx * s->blocksize * 32;
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int i;
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@ -100,26 +102,28 @@ static void tz_mpc_iommu_notify(TZMPC *s, uint32_t lutidx,
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block_is_ns = newlut & (1 << i);
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trace_tz_mpc_iommu_notify(addr);
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entry.iova = addr;
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entry.translated_addr = addr;
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event.entry.iova = addr;
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event.entry.translated_addr = addr;
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entry.perm = IOMMU_NONE;
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memory_region_notify_iommu(&s->upstream, IOMMU_IDX_S, entry);
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memory_region_notify_iommu(&s->upstream, IOMMU_IDX_NS, entry);
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event.type = IOMMU_NOTIFIER_UNMAP;
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event.entry.perm = IOMMU_NONE;
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memory_region_notify_iommu(&s->upstream, IOMMU_IDX_S, event);
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memory_region_notify_iommu(&s->upstream, IOMMU_IDX_NS, event);
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entry.perm = IOMMU_RW;
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event.type = IOMMU_NOTIFIER_MAP;
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event.entry.perm = IOMMU_RW;
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if (block_is_ns) {
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entry.target_as = &s->blocked_io_as;
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event.entry.target_as = &s->blocked_io_as;
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} else {
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entry.target_as = &s->downstream_as;
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event.entry.target_as = &s->downstream_as;
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}
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memory_region_notify_iommu(&s->upstream, IOMMU_IDX_S, entry);
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memory_region_notify_iommu(&s->upstream, IOMMU_IDX_S, event);
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if (block_is_ns) {
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entry.target_as = &s->downstream_as;
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event.entry.target_as = &s->downstream_as;
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} else {
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entry.target_as = &s->blocked_io_as;
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event.entry.target_as = &s->blocked_io_as;
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}
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memory_region_notify_iommu(&s->upstream, IOMMU_IDX_NS, entry);
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memory_region_notify_iommu(&s->upstream, IOMMU_IDX_NS, event);
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}
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}
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@ -445,7 +445,7 @@ static void spapr_tce_reset(DeviceState *dev)
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static target_ulong put_tce_emu(SpaprTceTable *tcet, target_ulong ioba,
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target_ulong tce)
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{
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IOMMUTLBEntry entry;
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IOMMUTLBEvent event;
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hwaddr page_mask = IOMMU_PAGE_MASK(tcet->page_shift);
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unsigned long index = (ioba - tcet->bus_offset) >> tcet->page_shift;
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@ -457,12 +457,13 @@ static target_ulong put_tce_emu(SpaprTceTable *tcet, target_ulong ioba,
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tcet->table[index] = tce;
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entry.target_as = &address_space_memory,
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entry.iova = (ioba - tcet->bus_offset) & page_mask;
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entry.translated_addr = tce & page_mask;
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entry.addr_mask = ~page_mask;
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entry.perm = spapr_tce_iommu_access_flags(tce);
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memory_region_notify_iommu(&tcet->iommu, 0, entry);
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event.entry.target_as = &address_space_memory,
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event.entry.iova = (ioba - tcet->bus_offset) & page_mask;
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event.entry.translated_addr = tce & page_mask;
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event.entry.addr_mask = ~page_mask;
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event.entry.perm = spapr_tce_iommu_access_flags(tce);
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event.type = event.entry.perm ? IOMMU_NOTIFIER_MAP : IOMMU_NOTIFIER_UNMAP;
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memory_region_notify_iommu(&tcet->iommu, 0, event);
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return H_SUCCESS;
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}
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@ -602,15 +602,18 @@ static uint32_t s390_pci_update_iotlb(S390PCIIOMMU *iommu,
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S390IOTLBEntry *entry)
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{
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S390IOTLBEntry *cache = g_hash_table_lookup(iommu->iotlb, &entry->iova);
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IOMMUTLBEntry notify = {
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IOMMUTLBEvent event = {
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.type = entry->perm ? IOMMU_NOTIFIER_MAP : IOMMU_NOTIFIER_UNMAP,
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.entry = {
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.target_as = &address_space_memory,
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.iova = entry->iova,
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.translated_addr = entry->translated_addr,
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.perm = entry->perm,
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.addr_mask = ~PAGE_MASK,
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},
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};
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if (entry->perm == IOMMU_NONE) {
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if (event.type == IOMMU_NOTIFIER_UNMAP) {
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if (!cache) {
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goto out;
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}
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@ -623,9 +626,11 @@ static uint32_t s390_pci_update_iotlb(S390PCIIOMMU *iommu,
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goto out;
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}
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notify.perm = IOMMU_NONE;
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memory_region_notify_iommu(&iommu->iommu_mr, 0, notify);
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notify.perm = entry->perm;
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event.type = IOMMU_NOTIFIER_UNMAP;
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event.entry.perm = IOMMU_NONE;
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memory_region_notify_iommu(&iommu->iommu_mr, 0, event);
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event.type = IOMMU_NOTIFIER_MAP;
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event.entry.perm = entry->perm;
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}
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cache = g_new(S390IOTLBEntry, 1);
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@ -637,7 +642,7 @@ static uint32_t s390_pci_update_iotlb(S390PCIIOMMU *iommu,
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dec_dma_avail(iommu);
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}
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memory_region_notify_iommu(&iommu->iommu_mr, 0, notify);
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memory_region_notify_iommu(&iommu->iommu_mr, 0, event);
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out:
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return iommu->dma_limit ? iommu->dma_limit->avail : 1;
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@ -129,7 +129,7 @@ static void virtio_iommu_notify_map(IOMMUMemoryRegion *mr, hwaddr virt_start,
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hwaddr virt_end, hwaddr paddr,
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uint32_t flags)
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||||
{
|
||||
IOMMUTLBEntry entry;
|
||||
IOMMUTLBEvent event;
|
||||
IOMMUAccessFlags perm = IOMMU_ACCESS_FLAG(flags & VIRTIO_IOMMU_MAP_F_READ,
|
||||
flags & VIRTIO_IOMMU_MAP_F_WRITE);
|
||||
|
||||
@ -141,19 +141,20 @@ static void virtio_iommu_notify_map(IOMMUMemoryRegion *mr, hwaddr virt_start,
|
||||
trace_virtio_iommu_notify_map(mr->parent_obj.name, virt_start, virt_end,
|
||||
paddr, perm);
|
||||
|
||||
entry.target_as = &address_space_memory;
|
||||
entry.addr_mask = virt_end - virt_start;
|
||||
entry.iova = virt_start;
|
||||
entry.perm = perm;
|
||||
entry.translated_addr = paddr;
|
||||
event.type = IOMMU_NOTIFIER_MAP;
|
||||
event.entry.target_as = &address_space_memory;
|
||||
event.entry.addr_mask = virt_end - virt_start;
|
||||
event.entry.iova = virt_start;
|
||||
event.entry.perm = perm;
|
||||
event.entry.translated_addr = paddr;
|
||||
|
||||
memory_region_notify_iommu(mr, 0, entry);
|
||||
memory_region_notify_iommu(mr, 0, event);
|
||||
}
|
||||
|
||||
static void virtio_iommu_notify_unmap(IOMMUMemoryRegion *mr, hwaddr virt_start,
|
||||
hwaddr virt_end)
|
||||
{
|
||||
IOMMUTLBEntry entry;
|
||||
IOMMUTLBEvent event;
|
||||
|
||||
if (!(mr->iommu_notify_flags & IOMMU_NOTIFIER_UNMAP)) {
|
||||
return;
|
||||
@ -161,13 +162,14 @@ static void virtio_iommu_notify_unmap(IOMMUMemoryRegion *mr, hwaddr virt_start,
|
||||
|
||||
trace_virtio_iommu_notify_unmap(mr->parent_obj.name, virt_start, virt_end);
|
||||
|
||||
entry.target_as = &address_space_memory;
|
||||
entry.addr_mask = virt_end - virt_start;
|
||||
entry.iova = virt_start;
|
||||
entry.perm = IOMMU_NONE;
|
||||
entry.translated_addr = 0;
|
||||
event.type = IOMMU_NOTIFIER_UNMAP;
|
||||
event.entry.target_as = &address_space_memory;
|
||||
event.entry.addr_mask = virt_end - virt_start;
|
||||
event.entry.iova = virt_start;
|
||||
event.entry.perm = IOMMU_NONE;
|
||||
event.entry.translated_addr = 0;
|
||||
|
||||
memory_region_notify_iommu(mr, 0, entry);
|
||||
memory_region_notify_iommu(mr, 0, event);
|
||||
}
|
||||
|
||||
static gboolean virtio_iommu_notify_unmap_cb(gpointer key, gpointer value,
|
||||
|
@ -116,6 +116,11 @@ struct IOMMUNotifier {
|
||||
};
|
||||
typedef struct IOMMUNotifier IOMMUNotifier;
|
||||
|
||||
typedef struct IOMMUTLBEvent {
|
||||
IOMMUNotifierFlag type;
|
||||
IOMMUTLBEntry entry;
|
||||
} IOMMUTLBEvent;
|
||||
|
||||
/* RAM is pre-allocated and passed into qemu_ram_alloc_from_ptr */
|
||||
#define RAM_PREALLOC (1 << 0)
|
||||
|
||||
@ -1326,24 +1331,18 @@ uint64_t memory_region_iommu_get_min_page_size(IOMMUMemoryRegion *iommu_mr);
|
||||
/**
|
||||
* memory_region_notify_iommu: notify a change in an IOMMU translation entry.
|
||||
*
|
||||
* The notification type will be decided by entry.perm bits:
|
||||
*
|
||||
* - For UNMAP (cache invalidation) notifies: set entry.perm to IOMMU_NONE.
|
||||
* - For MAP (newly added entry) notifies: set entry.perm to the
|
||||
* permission of the page (which is definitely !IOMMU_NONE).
|
||||
*
|
||||
* Note: for any IOMMU implementation, an in-place mapping change
|
||||
* should be notified with an UNMAP followed by a MAP.
|
||||
*
|
||||
* @iommu_mr: the memory region that was changed
|
||||
* @iommu_idx: the IOMMU index for the translation table which has changed
|
||||
* @entry: the new entry in the IOMMU translation table. The entry
|
||||
* replaces all old entries for the same virtual I/O address range.
|
||||
* Deleted entries have .@perm == 0.
|
||||
* @event: TLB event with the new entry in the IOMMU translation table.
|
||||
* The entry replaces all old entries for the same virtual I/O address
|
||||
* range.
|
||||
*/
|
||||
void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr,
|
||||
int iommu_idx,
|
||||
IOMMUTLBEntry entry);
|
||||
IOMMUTLBEvent event);
|
||||
|
||||
/**
|
||||
* memory_region_notify_iommu_one: notify a change in an IOMMU translation
|
||||
@ -1353,12 +1352,12 @@ void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr,
|
||||
* notifies a specific notifier, not all of them.
|
||||
*
|
||||
* @notifier: the notifier to be notified
|
||||
* @entry: the new entry in the IOMMU translation table. The entry
|
||||
* replaces all old entries for the same virtual I/O address range.
|
||||
* Deleted entries have .@perm == 0.
|
||||
* @event: TLB event with the new entry in the IOMMU translation table.
|
||||
* The entry replaces all old entries for the same virtual I/O address
|
||||
* range.
|
||||
*/
|
||||
void memory_region_notify_iommu_one(IOMMUNotifier *notifier,
|
||||
IOMMUTLBEntry *entry);
|
||||
IOMMUTLBEvent *event);
|
||||
|
||||
/**
|
||||
* memory_region_register_iommu_notifier: register a notifier for changes to
|
||||
|
@ -1943,11 +1943,15 @@ void memory_region_unregister_iommu_notifier(MemoryRegion *mr,
|
||||
}
|
||||
|
||||
void memory_region_notify_iommu_one(IOMMUNotifier *notifier,
|
||||
IOMMUTLBEntry *entry)
|
||||
IOMMUTLBEvent *event)
|
||||
{
|
||||
IOMMUNotifierFlag request_flags;
|
||||
IOMMUTLBEntry *entry = &event->entry;
|
||||
hwaddr entry_end = entry->iova + entry->addr_mask;
|
||||
|
||||
if (event->type == IOMMU_NOTIFIER_UNMAP) {
|
||||
assert(entry->perm == IOMMU_NONE);
|
||||
}
|
||||
|
||||
/*
|
||||
* Skip the notification if the notification does not overlap
|
||||
* with registered range.
|
||||
@ -1958,20 +1962,14 @@ void memory_region_notify_iommu_one(IOMMUNotifier *notifier,
|
||||
|
||||
assert(entry->iova >= notifier->start && entry_end <= notifier->end);
|
||||
|
||||
if (entry->perm & IOMMU_RW) {
|
||||
request_flags = IOMMU_NOTIFIER_MAP;
|
||||
} else {
|
||||
request_flags = IOMMU_NOTIFIER_UNMAP;
|
||||
}
|
||||
|
||||
if (notifier->notifier_flags & request_flags) {
|
||||
if (event->type & notifier->notifier_flags) {
|
||||
notifier->notify(notifier, entry);
|
||||
}
|
||||
}
|
||||
|
||||
void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr,
|
||||
int iommu_idx,
|
||||
IOMMUTLBEntry entry)
|
||||
IOMMUTLBEvent event)
|
||||
{
|
||||
IOMMUNotifier *iommu_notifier;
|
||||
|
||||
@ -1979,7 +1977,7 @@ void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr,
|
||||
|
||||
IOMMU_NOTIFIER_FOREACH(iommu_notifier, iommu_mr) {
|
||||
if (iommu_notifier->iommu_idx == iommu_idx) {
|
||||
memory_region_notify_iommu_one(iommu_notifier, &entry);
|
||||
memory_region_notify_iommu_one(iommu_notifier, &event);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user