qemu/hw-arm-smmuv3-Add-missing-STE-invalidation.patch

From 707bd8198642549595f11ef34c80094fbf7d2de1 Mon Sep 17 00:00:00 2001
From: Nicolin Chen <nicolinc@nvidia.com>
Date: Mon, 29 Apr 2024 21:26:41 +0000
Subject: [PATCH] hw/arm/smmuv3: Add missing STE invalidation

Multitple STEs can be invalidated in a range via SMMU_CMD_CFGI_STE_RANGE
or SMMU_CMD_CFGI_ALL command.

Add the missing STE invalidation in this pathway.

Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
---
 hw/arm/smmu-internal.h |  1 +
 hw/arm/smmuv3.c        | 28 +++++++++++++++++++++++++---
 2 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/hw/arm/smmu-internal.h b/hw/arm/smmu-internal.h
index 843bebb185..5a81dd1b82 100644
--- a/hw/arm/smmu-internal.h
+++ b/hw/arm/smmu-internal.h
@@ -142,6 +142,7 @@ typedef struct SMMUIOTLBPageInvInfo {
 } SMMUIOTLBPageInvInfo;
 
 typedef struct SMMUSIDRange {
+    SMMUState *state;
     uint32_t start;
     uint32_t end;
 } SMMUSIDRange;
diff --git a/hw/arm/smmuv3.c b/hw/arm/smmuv3.c
index 540831ab8e..9d44bb19bc 100644
--- a/hw/arm/smmuv3.c
+++ b/hw/arm/smmuv3.c
@@ -1322,11 +1322,9 @@ static void smmuv3_install_nested_ste(SMMUDevice *sdev, int sid)
 }
 
 static gboolean
-smmuv3_invalidate_ste(gpointer key, gpointer value, gpointer user_data)
+_smmuv3_invalidate_ste(SMMUDevice *sdev, SMMUSIDRange *sid_range)
 {
-    SMMUDevice *sdev = (SMMUDevice *)key;
     uint32_t sid = smmu_get_sid(sdev);
-    SMMUSIDRange *sid_range = (SMMUSIDRange *)user_data;
 
     if (sid < sid_range->start || sid > sid_range->end) {
         return false;
@@ -1337,6 +1335,28 @@ smmuv3_invalidate_ste(gpointer key, gpointer value, gpointer user_data)
     return true;
 }
 
+static gboolean
+smmuv3_invalidate_ste(gpointer key, gpointer value, gpointer user_data)
+{
+    return _smmuv3_invalidate_ste((SMMUDevice *)key, (SMMUSIDRange *)user_data);
+}
+
+static void smmuv3_invalidate_nested_ste(SMMUSIDRange *sid_range)
+{
+    SMMUState *bs = sid_range->state;
+    SMMUDevice *sdev;
+
+    if (!bs->viommu) {
+        return;
+    }
+
+    QLIST_FOREACH(sdev, &bs->viommu->device_list, next) {
+        if (smmu_get_sid(sdev)) {
+            _smmuv3_invalidate_ste(sdev, sid_range);
+        }
+    }
+}
+
 static int smmuv3_cmdq_consume(SMMUv3State *s)
 {
     SMMUState *bs = ARM_SMMU(s);
@@ -1418,12 +1438,14 @@ static int smmuv3_cmdq_consume(SMMUv3State *s)
             }
 
             mask = (1ULL << (range + 1)) - 1;
+            sid_range.state = bs;
             sid_range.start = sid & ~mask;
             sid_range.end = sid_range.start + mask;
 
             trace_smmuv3_cmdq_cfgi_ste_range(sid_range.start, sid_range.end);
             g_hash_table_foreach_remove(bs->configs, smmuv3_invalidate_ste,
                                         &sid_range);
+            smmuv3_invalidate_nested_ste(&sid_range);
             break;
         }
         case SMMU_CMD_CFGI_CD:
-- 
2.41.0.windows.1