This way we can tell between MAPs and UNMAP, and potentially avoid to
send them to a notifier that does not require them.
Signed-off-by: Eugenio Pérez <epere...@redhat.com>
---
include/exec/memory.h | 17 ++++++++++++-----
1 file changed, 12 insertions(+), 5 deletions(-)
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 22c5f564d1..f6d91c54aa 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -59,6 +59,12 @@ struct ReservedRegion {
typedef struct IOMMUTLBEntry IOMMUTLBEntry;
+typedef enum {
+ IOMMU_IOTLB_NONE = 0,
+ IOMMU_IOTLB_UNMAP = 1,
+ IOMMU_IOTLB_MAP = 2,
+} IOMMUTLBNotificationType;
+
/* See address_space_translate: bit 0 is read, bit 1 is write. */
typedef enum {
IOMMU_NONE = 0,
@@ -70,11 +76,12 @@ typedef enum {
#define IOMMU_ACCESS_FLAG(r, w) (((r) ? IOMMU_RO : 0) | ((w) ? IOMMU_WO : 0))
struct IOMMUTLBEntry {
- AddressSpace *target_as;
- hwaddr iova;
- hwaddr translated_addr;
- hwaddr addr_mask; /* 0xfff = 4k translation */
- IOMMUAccessFlags perm;
+ AddressSpace *target_as;
+ hwaddr iova;
+ hwaddr translated_addr;
+ hwaddr addr_mask; /* 0xfff = 4k translation */
+ IOMMUAccessFlags perm;
+ IOMMUTLBNotificationType type; /* Only valid if it is a notification */
};
/*
--
2.18.1
