#ifndef INTEL_IOMMU_H
#define INTEL_IOMMU_H
-#include "hw/qdev.h"
-#include "sysemu/dma.h"
+
#include "hw/i386/x86-iommu.h"
-#include "hw/i386/ioapic.h"
-#include "hw/pci/msi.h"
-#include "hw/sysbus.h"
+#include "qemu/iova-tree.h"
+#include "qom/object.h"
#define TYPE_INTEL_IOMMU_DEVICE "intel-iommu"
-#define INTEL_IOMMU_DEVICE(obj) \
- OBJECT_CHECK(IntelIOMMUState, (obj), TYPE_INTEL_IOMMU_DEVICE)
+OBJECT_DECLARE_SIMPLE_TYPE(IntelIOMMUState, INTEL_IOMMU_DEVICE)
#define TYPE_INTEL_IOMMU_MEMORY_REGION "intel-iommu-iommu-memory-region"
#define VTD_SID_TO_DEVFN(sid) ((sid) & 0xff)
#define DMAR_REG_SIZE 0x230
-#define VTD_HOST_ADDRESS_WIDTH 39
-#define VTD_HAW_MASK ((1ULL << VTD_HOST_ADDRESS_WIDTH) - 1)
+#define VTD_HOST_AW_39BIT 39
+#define VTD_HOST_AW_48BIT 48
+#define VTD_HOST_ADDRESS_WIDTH VTD_HOST_AW_39BIT
+#define VTD_HAW_MASK(aw) ((1ULL << (aw)) - 1)
#define DMAR_REPORT_F_INTR (1)
typedef struct VTDContextEntry VTDContextEntry;
typedef struct VTDContextCacheEntry VTDContextCacheEntry;
-typedef struct IntelIOMMUState IntelIOMMUState;
typedef struct VTDAddressSpace VTDAddressSpace;
typedef struct VTDIOTLBEntry VTDIOTLBEntry;
typedef struct VTDBus VTDBus;
typedef union VTD_IR_TableEntry VTD_IR_TableEntry;
typedef union VTD_IR_MSIAddress VTD_IR_MSIAddress;
-typedef struct VTDIrq VTDIrq;
-typedef struct VTD_MSIMessage VTD_MSIMessage;
-typedef struct IntelIOMMUNotifierNode IntelIOMMUNotifierNode;
+typedef struct VTDPASIDDirEntry VTDPASIDDirEntry;
+typedef struct VTDPASIDEntry VTDPASIDEntry;
/* Context-Entry */
struct VTDContextEntry {
- uint64_t lo;
- uint64_t hi;
+ union {
+ struct {
+ uint64_t lo;
+ uint64_t hi;
+ };
+ struct {
+ uint64_t val[4];
+ };
+ };
};
struct VTDContextCacheEntry {
struct VTDContextEntry context_entry;
};
+/* PASID Directory Entry */
+struct VTDPASIDDirEntry {
+ uint64_t val;
+};
+
+/* PASID Table Entry */
+struct VTDPASIDEntry {
+ uint64_t val[8];
+};
+
struct VTDAddressSpace {
PCIBus *bus;
uint8_t devfn;
AddressSpace as;
IOMMUMemoryRegion iommu;
- MemoryRegion root;
- MemoryRegion sys_alias;
+ MemoryRegion root; /* The root container of the device */
+ MemoryRegion nodmar; /* The alias of shared nodmar MR */
MemoryRegion iommu_ir; /* Interrupt region: 0xfeeXXXXX */
IntelIOMMUState *iommu_state;
VTDContextCacheEntry context_cache_entry;
+ QLIST_ENTRY(VTDAddressSpace) next;
+ /* Superset of notifier flags that this address space has */
+ IOMMUNotifierFlag notifier_flags;
+ IOVATree *iova_tree; /* Traces mapped IOVA ranges */
};
struct VTDBus {
PCIBus* bus; /* A reference to the bus to provide translation for */
- VTDAddressSpace *dev_as[0]; /* A table of VTDAddressSpace objects indexed by devfn */
+ /* A table of VTDAddressSpace objects indexed by devfn */
+ VTDAddressSpace *dev_as[];
};
struct VTDIOTLBEntry {
uint16_t domain_id;
uint64_t slpte;
uint64_t mask;
- bool read_flags;
- bool write_flags;
+ uint8_t access_flags;
};
/* VT-d Source-ID Qualifier types */
uint32_t data;
};
-/* Generic IRQ entry information */
-struct VTDIrq {
- /* Used by both IOAPIC/MSI interrupt remapping */
- uint8_t trigger_mode;
- uint8_t vector;
- uint8_t delivery_mode;
- uint32_t dest;
- uint8_t dest_mode;
-
- /* only used by MSI interrupt remapping */
- uint8_t redir_hint;
- uint8_t msi_addr_last_bits;
-};
-
-struct VTD_MSIMessage {
- union {
- struct {
-#ifdef HOST_WORDS_BIGENDIAN
- uint32_t __addr_head:12; /* 0xfee */
- uint32_t dest:8;
- uint32_t __reserved:8;
- uint32_t redir_hint:1;
- uint32_t dest_mode:1;
- uint32_t __not_used:2;
-#else
- uint32_t __not_used:2;
- uint32_t dest_mode:1;
- uint32_t redir_hint:1;
- uint32_t __reserved:8;
- uint32_t dest:8;
- uint32_t __addr_head:12; /* 0xfee */
-#endif
- uint32_t __addr_hi;
- } QEMU_PACKED;
- uint64_t msi_addr;
- };
- union {
- struct {
-#ifdef HOST_WORDS_BIGENDIAN
- uint16_t trigger_mode:1;
- uint16_t level:1;
- uint16_t __resved:3;
- uint16_t delivery_mode:3;
- uint16_t vector:8;
-#else
- uint16_t vector:8;
- uint16_t delivery_mode:3;
- uint16_t __resved:3;
- uint16_t level:1;
- uint16_t trigger_mode:1;
-#endif
- uint16_t __resved1;
- } QEMU_PACKED;
- uint32_t msi_data;
- };
-};
-
/* When IR is enabled, all MSI/MSI-X data bits should be zero */
#define VTD_IR_MSI_DATA (0)
-struct IntelIOMMUNotifierNode {
- VTDAddressSpace *vtd_as;
- QLIST_ENTRY(IntelIOMMUNotifierNode) next;
-};
-
/* The iommu (DMAR) device state struct */
struct IntelIOMMUState {
X86IOMMUState x86_iommu;
MemoryRegion csrmem;
+ MemoryRegion mr_nodmar;
+ MemoryRegion mr_ir;
+ MemoryRegion mr_sys_alias;
uint8_t csr[DMAR_REG_SIZE]; /* register values */
uint8_t wmask[DMAR_REG_SIZE]; /* R/W bytes */
uint8_t w1cmask[DMAR_REG_SIZE]; /* RW1C(Write 1 to Clear) bytes */
uint8_t womask[DMAR_REG_SIZE]; /* WO (write only - read returns 0) */
uint32_t version;
- bool caching_mode; /* RO - is cap CM enabled? */
+ bool caching_mode; /* RO - is cap CM enabled? */
+ bool scalable_mode; /* RO - is Scalable Mode supported? */
+ bool snoop_control; /* RO - is SNP filed supported? */
dma_addr_t root; /* Current root table pointer */
- bool root_extended; /* Type of root table (extended or not) */
+ bool root_scalable; /* Type of root table (scalable or not) */
bool dmar_enabled; /* Set if DMA remapping is enabled */
uint16_t iq_head; /* Current invalidation queue head */
uint16_t iq_tail; /* Current invalidation queue tail */
dma_addr_t iq; /* Current invalidation queue pointer */
uint16_t iq_size; /* IQ Size in number of entries */
+ bool iq_dw; /* IQ descriptor width 256bit or not */
bool qi_enabled; /* Set if the QI is enabled */
uint8_t iq_last_desc_type; /* The type of last completed descriptor */
GHashTable *vtd_as_by_busptr; /* VTDBus objects indexed by PCIBus* reference */
VTDBus *vtd_as_by_bus_num[VTD_PCI_BUS_MAX]; /* VTDBus objects indexed by bus number */
/* list of registered notifiers */
- QLIST_HEAD(, IntelIOMMUNotifierNode) notifiers_list;
+ QLIST_HEAD(, VTDAddressSpace) vtd_as_with_notifiers;
/* interrupt remapping */
bool intr_enabled; /* Whether guest enabled IR */
bool intr_eime; /* Extended interrupt mode enabled */
OnOffAuto intr_eim; /* Toggle for EIM cabability */
bool buggy_eim; /* Force buggy EIM unless eim=off */
+ uint8_t aw_bits; /* Host/IOVA address width (in bits) */
+ bool dma_drain; /* Whether DMA r/w draining enabled */
+
+ /*
+ * Protects IOMMU states in general. Currently it protects the
+ * per-IOMMU IOTLB cache, and context entry cache in VTDAddressSpace.
+ */
+ QemuMutex iommu_lock;
};
/* Find the VTD Address space associated with the given bus pointer,
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