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-rw-r--r--include/exec/memory.h55
-rw-r--r--include/hw/i386/intel_iommu.h2
-rw-r--r--include/hw/mips/mips.h2
-rw-r--r--include/hw/ppc/spapr.h3
-rw-r--r--include/hw/vfio/vfio-common.h2
-rw-r--r--include/qemu/typedefs.h1
6 files changed, 41 insertions, 24 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 8503685455..92980abfad 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -35,6 +35,10 @@
#define MEMORY_REGION(obj) \
OBJECT_CHECK(MemoryRegion, (obj), TYPE_MEMORY_REGION)
+#define TYPE_IOMMU_MEMORY_REGION "qemu:iommu-memory-region"
+#define IOMMU_MEMORY_REGION(obj) \
+ OBJECT_CHECK(IOMMUMemoryRegion, (obj), TYPE_IOMMU_MEMORY_REGION)
+
typedef struct MemoryRegionOps MemoryRegionOps;
typedef struct MemoryRegionMmio MemoryRegionMmio;
@@ -198,16 +202,16 @@ struct MemoryRegionIOMMUOps {
* set flag to IOMMU_NONE to mean that we don't need any
* read/write permission checks, like, when for region replay.
*/
- IOMMUTLBEntry (*translate)(MemoryRegion *iommu, hwaddr addr,
+ IOMMUTLBEntry (*translate)(IOMMUMemoryRegion *iommu, hwaddr addr,
IOMMUAccessFlags flag);
/* Returns minimum supported page size */
- uint64_t (*get_min_page_size)(MemoryRegion *iommu);
+ uint64_t (*get_min_page_size)(IOMMUMemoryRegion *iommu);
/* Called when IOMMU Notifier flag changed */
- void (*notify_flag_changed)(MemoryRegion *iommu,
+ void (*notify_flag_changed)(IOMMUMemoryRegion *iommu,
IOMMUNotifierFlag old_flags,
IOMMUNotifierFlag new_flags);
/* Set this up to provide customized IOMMU replay function */
- void (*replay)(MemoryRegion *iommu, IOMMUNotifier *notifier);
+ void (*replay)(IOMMUMemoryRegion *iommu, IOMMUNotifier *notifier);
};
typedef struct CoalescedMemoryRange CoalescedMemoryRange;
@@ -227,9 +231,9 @@ struct MemoryRegion {
bool flush_coalesced_mmio;
bool global_locking;
uint8_t dirty_log_mask;
+ bool is_iommu;
RAMBlock *ram_block;
Object *owner;
- const MemoryRegionIOMMUOps *iommu_ops;
const MemoryRegionOps *ops;
void *opaque;
@@ -252,6 +256,12 @@ struct MemoryRegion {
const char *name;
unsigned ioeventfd_nb;
MemoryRegionIoeventfd *ioeventfds;
+};
+
+struct IOMMUMemoryRegion {
+ MemoryRegion parent_obj;
+
+ const MemoryRegionIOMMUOps *iommu_ops;
QLIST_HEAD(, IOMMUNotifier) iommu_notify;
IOMMUNotifierFlag iommu_notify_flags;
};
@@ -618,13 +628,13 @@ static inline void memory_region_init_reservation(MemoryRegion *mr,
* An IOMMU region translates addresses and forwards accesses to a target
* memory region.
*
- * @mr: the #MemoryRegion to be initialized
+ * @iommu_mr: the #IOMMUMemoryRegion to be initialized
* @owner: the object that tracks the region's reference count
* @ops: a function that translates addresses into the @target region
* @name: used for debugging; not visible to the user or ABI
* @size: size of the region.
*/
-void memory_region_init_iommu(MemoryRegion *mr,
+void memory_region_init_iommu(IOMMUMemoryRegion *iommu_mr,
struct Object *owner,
const MemoryRegionIOMMUOps *ops,
const char *name,
@@ -679,20 +689,25 @@ static inline bool memory_region_is_romd(MemoryRegion *mr)
}
/**
- * memory_region_is_iommu: check whether a memory region is an iommu
+ * memory_region_get_iommu: check whether a memory region is an iommu
*
- * Returns %true is a memory region is an iommu.
+ * Returns pointer to IOMMUMemoryRegion if a memory region is an iommu,
+ * otherwise NULL.
*
* @mr: the memory region being queried
*/
-static inline bool memory_region_is_iommu(MemoryRegion *mr)
+static inline IOMMUMemoryRegion *memory_region_get_iommu(MemoryRegion *mr)
{
if (mr->alias) {
- return memory_region_is_iommu(mr->alias);
+ return memory_region_get_iommu(mr->alias);
+ }
+ if (mr->is_iommu) {
+ return (IOMMUMemoryRegion *) mr;
}
- return mr->iommu_ops;
+ return NULL;
}
+#define memory_region_is_iommu(mr) (memory_region_get_iommu(mr) != NULL)
/**
* memory_region_iommu_get_min_page_size: get minimum supported page size
@@ -700,9 +715,9 @@ static inline bool memory_region_is_iommu(MemoryRegion *mr)
*
* Returns minimum supported page size for an iommu.
*
- * @mr: the memory region being queried
+ * @iommu_mr: the memory region being queried
*/
-uint64_t memory_region_iommu_get_min_page_size(MemoryRegion *mr);
+uint64_t memory_region_iommu_get_min_page_size(IOMMUMemoryRegion *iommu_mr);
/**
* memory_region_notify_iommu: notify a change in an IOMMU translation entry.
@@ -716,12 +731,12 @@ uint64_t memory_region_iommu_get_min_page_size(MemoryRegion *mr);
* Note: for any IOMMU implementation, an in-place mapping change
* should be notified with an UNMAP followed by a MAP.
*
- * @mr: the memory region that was changed
+ * @iommu_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,
+void memory_region_notify_iommu(IOMMUMemoryRegion *iommu_mr,
IOMMUTLBEntry entry);
/**
@@ -756,18 +771,18 @@ void memory_region_register_iommu_notifier(MemoryRegion *mr,
* a notifier with the minimum page granularity returned by
* mr->iommu_ops->get_page_size().
*
- * @mr: the memory region to observe
+ * @iommu_mr: the memory region to observe
* @n: the notifier to which to replay iommu mappings
*/
-void memory_region_iommu_replay(MemoryRegion *mr, IOMMUNotifier *n);
+void memory_region_iommu_replay(IOMMUMemoryRegion *iommu_mr, IOMMUNotifier *n);
/**
* memory_region_iommu_replay_all: replay existing IOMMU translations
* to all the notifiers registered.
*
- * @mr: the memory region to observe
+ * @iommu_mr: the memory region to observe
*/
-void memory_region_iommu_replay_all(MemoryRegion *mr);
+void memory_region_iommu_replay_all(IOMMUMemoryRegion *iommu_mr);
/**
* memory_region_unregister_iommu_notifier: unregister a notifier for
diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h
index 3e51876b75..45fba4ff97 100644
--- a/include/hw/i386/intel_iommu.h
+++ b/include/hw/i386/intel_iommu.h
@@ -83,7 +83,7 @@ struct VTDAddressSpace {
PCIBus *bus;
uint8_t devfn;
AddressSpace as;
- MemoryRegion iommu;
+ IOMMUMemoryRegion iommu;
MemoryRegion root;
MemoryRegion sys_alias;
MemoryRegion iommu_ir; /* Interrupt region: 0xfeeXXXXX */
diff --git a/include/hw/mips/mips.h b/include/hw/mips/mips.h
index 16412dc150..2f6774d540 100644
--- a/include/hw/mips/mips.h
+++ b/include/hw/mips/mips.h
@@ -19,6 +19,6 @@ typedef struct rc4030DMAState *rc4030_dma;
void rc4030_dma_read(void *dma, uint8_t *buf, int len);
void rc4030_dma_write(void *dma, uint8_t *buf, int len);
-DeviceState *rc4030_init(rc4030_dma **dmas, MemoryRegion **dma_mr);
+DeviceState *rc4030_init(rc4030_dma **dmas, IOMMUMemoryRegion **dma_mr);
#endif
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index a184ffab0e..b353dfff2e 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -594,7 +594,8 @@ struct sPAPRTCETable {
bool bypass;
bool need_vfio;
int fd;
- MemoryRegion root, iommu;
+ MemoryRegion root;
+ IOMMUMemoryRegion iommu;
struct VIOsPAPRDevice *vdev; /* for @bypass migration compatibility only */
QLIST_ENTRY(sPAPRTCETable) list;
};
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h
index 0b475a3596..f3a2ac9fee 100644
--- a/include/hw/vfio/vfio-common.h
+++ b/include/hw/vfio/vfio-common.h
@@ -95,7 +95,7 @@ typedef struct VFIOContainer {
typedef struct VFIOGuestIOMMU {
VFIOContainer *container;
- MemoryRegion *iommu;
+ IOMMUMemoryRegion *iommu;
hwaddr iommu_offset;
IOMMUNotifier n;
QLIST_ENTRY(VFIOGuestIOMMU) giommu_next;
diff --git a/include/qemu/typedefs.h b/include/qemu/typedefs.h
index 2706aabedf..b19159104c 100644
--- a/include/qemu/typedefs.h
+++ b/include/qemu/typedefs.h
@@ -45,6 +45,7 @@ typedef struct MachineState MachineState;
typedef struct MemoryListener MemoryListener;
typedef struct MemoryMappingList MemoryMappingList;
typedef struct MemoryRegion MemoryRegion;
+typedef struct IOMMUMemoryRegion IOMMUMemoryRegion;
typedef struct MemoryRegionCache MemoryRegionCache;
typedef struct MemoryRegionSection MemoryRegionSection;
typedef struct MigrationIncomingState MigrationIncomingState;
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-23 09:10:25 +0000