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[PATCH] hw/arm/smmuv3: Fix addr_mask for range-based invalidation


From: Zenghui Yu
Subject: [PATCH] hw/arm/smmuv3: Fix addr_mask for range-based invalidation
Date: Fri, 25 Dec 2020 17:50:15 +0800

When performing range-based IOTLB invalidation, we should decode the TG
field into the corresponding translation granule size so that we can pass
the correct invalidation range to backend. Set @granule to (tg * 2 + 10) to
properly emulate the architecture.

Fixes: d52915616c05 ("hw/arm/smmuv3: Get prepared for range invalidation")
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
---
 hw/arm/smmuv3.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index bbca0e9f20..65231c7d52 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -801,7 +801,7 @@ static void smmuv3_notify_iova(IOMMUMemoryRegion *mr,
 {
     SMMUDevice *sdev = container_of(mr, SMMUDevice, iommu);
     IOMMUTLBEvent event;
-    uint8_t granule = tg;
+    uint8_t granule;
 
     if (!tg) {
         SMMUEventInfo event = {.inval_ste_allowed = true};
@@ -821,6 +821,8 @@ static void smmuv3_notify_iova(IOMMUMemoryRegion *mr,
             return;
         }
         granule = tt->granule_sz;
+    } else {
+        guanule = tg * 2 + 10;
     }
 
     event.type = IOMMU_NOTIFIER_UNMAP;
-- 
2.19.1




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