diff options
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/memory.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h index a5e7721..75fa2b6 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -25,6 +25,7 @@ #include "exec/iorange.h" #include "exec/ioport.h" #include "qemu/int128.h" +#include "qemu/notify.h" #define MAX_PHYS_ADDR_SPACE_BITS 62 #define MAX_PHYS_ADDR (((hwaddr)1 << MAX_PHYS_ADDR_SPACE_BITS) - 1) @@ -173,6 +174,7 @@ struct MemoryRegion { uint8_t dirty_log_mask; unsigned ioeventfd_nb; MemoryRegionIoeventfd *ioeventfds; + NotifierList iommu_notify; }; struct MemoryRegionPortio { @@ -424,6 +426,36 @@ static inline bool memory_region_is_romd(MemoryRegion *mr) bool memory_region_is_iommu(MemoryRegion *mr); /** + * memory_region_notify_iommu: notify a change in an IOMMU translation entry. + * + * @mr: the memory region that was changed + * @entry: the new entry in the IOMMU translation table. The entry + * replaces all old entries for the same virtual I/O address range. + * Deleted entries have .@perm == 0. + */ +void memory_region_notify_iommu(MemoryRegion *mr, + IOMMUTLBEntry entry); + +/** + * memory_region_register_iommu_notifier: register a notifier for changes to + * IOMMU translation entries. + * + * @mr: the memory region to observe + * @n: the notifier to be added; the notifier receives a pointer to an + * #IOMMUTLBEntry as the opaque value; the pointer ceases to be + * valid on exit from the notifier. + */ +void memory_region_register_iommu_notifier(MemoryRegion *mr, Notifier *n); + +/** + * memory_region_unregister_iommu_notifier: unregister a notifier for + * changes to IOMMU translation entries. + * + * @n: the notifier to be removed. + */ +void memory_region_unregister_iommu_notifier(Notifier *n); + +/** * memory_region_name: get a memory region's name * * Returns the string that was used to initialize the memory region. |