From 51478a8ef5694cbd92b9a3436ec4489464210a8e Mon Sep 17 00:00:00 2001
From: Eric Auger <eric.auger@redhat.com>
Date: Thu, 19 Oct 2023 15:45:08 +0200
Subject: memory: Introduce memory_region_iommu_set_iova_ranges
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This helper will allow to convey information about valid
IOVA ranges to virtual IOMMUS.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: "Michael S. Tsirkin" <mst@redhat.com>
[ clg: fixes in memory_region_iommu_set_iova_ranges() and
       iommu_set_iova_ranges() documentation ]
Signed-off-by: Cédric Le Goater <clg@redhat.com>
---
 system/memory.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

(limited to 'system/memory.c')

diff --git a/system/memory.c b/system/memory.c
index 4928f25..304fa84 100644
--- a/system/memory.c
+++ b/system/memory.c
@@ -1921,6 +1921,19 @@ int memory_region_iommu_set_page_size_mask(IOMMUMemoryRegion *iommu_mr,
     return ret;
 }
 
+int memory_region_iommu_set_iova_ranges(IOMMUMemoryRegion *iommu_mr,
+                                        GList *iova_ranges,
+                                        Error **errp)
+{
+    IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
+    int ret = 0;
+
+    if (imrc->iommu_set_iova_ranges) {
+        ret = imrc->iommu_set_iova_ranges(iommu_mr, iova_ranges, errp);
+    }
+    return ret;
+}
+
 int memory_region_register_iommu_notifier(MemoryRegion *mr,
                                           IOMMUNotifier *n, Error **errp)
 {
-- 
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