[RFC v8 23/28] hw/arm/smmuv3: Fill the IOTLBEntry leaf field on NH_VA invalidation

[Eric Auger <eric.auger@redhat.com>]

Let's propagate the leaf attribute throughout the invalidation path.
This hint is used to reduce the scope of the invalidations to the
last level of translation. Not enforcing it induces large performance
penalties in nested mode.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
---
 hw/arm/smmuv3.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index d5a935004b..24d77175bf 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -799,7 +799,7 @@ epilogue:
 static void smmuv3_notify_iova(IOMMUMemoryRegion *mr,
                                IOMMUNotifier *n,
                                int asid, dma_addr_t iova,
-                               uint8_t tg, uint64_t num_pages)
+                               uint8_t tg, uint64_t num_pages, bool leaf)
 {
     SMMUDevice *sdev = container_of(mr, SMMUDevice, iommu);
     IOMMUTLBEvent event = {};
@@ -834,6 +834,7 @@ static void smmuv3_notify_iova(IOMMUMemoryRegion *mr,
     event.entry.perm = IOMMU_NONE;
     event.entry.flags = IOMMU_INV_FLAGS_ARCHID;
     event.entry.arch_id = asid;
+    event.entry.leaf = leaf;
 
     memory_region_notify_iommu_one(n, &event);
 }
@@ -863,7 +864,7 @@ static void smmuv3_notify_asid(IOMMUMemoryRegion *mr,
 
 /* invalidate an asid/iova range tuple in all mr's */
 static void smmuv3_inv_notifiers_iova(SMMUState *s, int asid, dma_addr_t iova,
-                                      uint8_t tg, uint64_t num_pages)
+                                      uint8_t tg, uint64_t num_pages, bool leaf)
 {
     SMMUDevice *sdev;
 
@@ -875,7 +876,7 @@ static void smmuv3_inv_notifiers_iova(SMMUState *s, int asid, dma_addr_t iova,
                                         tg, num_pages);
 
         IOMMU_NOTIFIER_FOREACH(n, mr) {
-            smmuv3_notify_iova(mr, n, asid, iova, tg, num_pages);
+            smmuv3_notify_iova(mr, n, asid, iova, tg, num_pages, leaf);
         }
     }
 }
@@ -913,7 +914,7 @@ static void smmuv3_s1_range_inval(SMMUState *s, Cmd *cmd)
         count = mask + 1;
 
         trace_smmuv3_s1_range_inval(vmid, asid, addr, tg, count, ttl, leaf);
-        smmuv3_inv_notifiers_iova(s, asid, addr, tg, count);
+        smmuv3_inv_notifiers_iova(s, asid, addr, tg, count, leaf);
         smmu_iotlb_inv_iova(s, asid, addr, tg, count, ttl);
 
         num_pages -= count;
-- 
2.26.2