@@ -391,6 +391,20 @@ typedef struct IOMMUMemoryRegionClass {
* @iommu: the IOMMUMemoryRegion
*/
int (*num_indexes)(IOMMUMemoryRegion *iommu);
+
+#ifdef CONFIG_LINUX
+ /* Inject @count faults into the IOMMU memory region
+ *
+ * Optional method: if this method is not provided, then
+ * memory_region_injection_faults() will return -ENOENT
+ *
+ * @iommu: the IOMMU memory region to inject the faults in
+ * @count: number of faults to inject
+ * @buf: fault buffer
+ */
+ int (*inject_faults)(IOMMUMemoryRegion *iommu, int count,
+ struct iommu_fault *buf);
+#endif
} IOMMUMemoryRegionClass;
typedef struct CoalescedMemoryRange CoalescedMemoryRange;
@@ -1203,6 +1217,18 @@ int memory_region_iommu_attrs_to_index(IOMMUMemoryRegion *iommu_mr,
*/
int memory_region_iommu_num_indexes(IOMMUMemoryRegion *iommu_mr);
+#ifdef CONFIG_LINUX
+/**
+ * memory_region_inject_faults : inject @count faults stored in @buf
+ *
+ * @iommu_mr: the IOMMU memory region
+ * @count: number of faults to be injected
+ * @buf: buffer containing the faults
+ */
+int memory_region_inject_faults(IOMMUMemoryRegion *iommu_mr, int count,
+ struct iommu_fault *buf);
+#endif
+
/**
* memory_region_name: get a memory region's name
*
@@ -1976,6 +1976,18 @@ int memory_region_iommu_num_indexes(IOMMUMemoryRegion *iommu_mr)
return imrc->num_indexes(iommu_mr);
}
+#ifdef CONFIG_LINUX
+int memory_region_inject_faults(IOMMUMemoryRegion *iommu_mr, int count,
+ struct iommu_fault *buf)
+{
+ IOMMUMemoryRegionClass *imrc = IOMMU_MEMORY_REGION_GET_CLASS(iommu_mr);
+ if (!imrc->inject_faults) {
+ return -ENOENT;
+ }
+ return imrc->inject_faults(iommu_mr, count, buf);
+}
+#endif
+
void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client)
{
uint8_t mask = 1 << client;
This new API allows to inject @count iommu_faults into the IOMMU memory region. Signed-off-by: Eric Auger <eric.auger@redhat.com> --- include/exec/memory.h | 26 ++++++++++++++++++++++++++ memory.c | 12 ++++++++++++ 2 files changed, 38 insertions(+)