4 /* CPU interfaces that are target independent. */
6 #ifndef CONFIG_USER_ONLY
7 #include "exec/hwaddr.h"
12 * Type wide enough to contain any #target_ulong virtual address.
14 typedef uint64_t vaddr
;
15 #define VADDR_PRId PRId64
16 #define VADDR_PRIu PRIu64
17 #define VADDR_PRIo PRIo64
18 #define VADDR_PRIx PRIx64
19 #define VADDR_PRIX PRIX64
20 #define VADDR_MAX UINT64_MAX
22 /* Using intptr_t ensures that qemu_*_page_mask is sign-extended even
23 * when intptr_t is 32-bit and we are aligning a long long.
25 extern uintptr_t qemu_host_page_size
;
26 extern intptr_t qemu_host_page_mask
;
28 #define HOST_PAGE_ALIGN(addr) ROUND_UP((addr), qemu_host_page_size)
29 #define REAL_HOST_PAGE_ALIGN(addr) ROUND_UP((addr), qemu_real_host_page_size)
31 /* The CPU list lock nests outside page_(un)lock or mmap_(un)lock */
32 void qemu_init_cpu_list(void);
33 void cpu_list_lock(void);
34 void cpu_list_unlock(void);
36 void tcg_flush_softmmu_tlb(CPUState
*cs
);
38 void tcg_iommu_init_notifier_list(CPUState
*cpu
);
39 void tcg_iommu_free_notifier_list(CPUState
*cpu
);
41 #if !defined(CONFIG_USER_ONLY)
49 #if defined(HOST_WORDS_BIGENDIAN)
50 #define DEVICE_HOST_ENDIAN DEVICE_BIG_ENDIAN
52 #define DEVICE_HOST_ENDIAN DEVICE_LITTLE_ENDIAN
55 /* address in the RAM (different from a physical address) */
56 #if defined(CONFIG_XEN_BACKEND)
57 typedef uint64_t ram_addr_t
;
58 # define RAM_ADDR_MAX UINT64_MAX
59 # define RAM_ADDR_FMT "%" PRIx64
61 typedef uintptr_t ram_addr_t
;
62 # define RAM_ADDR_MAX UINTPTR_MAX
63 # define RAM_ADDR_FMT "%" PRIxPTR
68 void qemu_ram_remap(ram_addr_t addr
, ram_addr_t length
);
69 /* This should not be used by devices. */
70 ram_addr_t
qemu_ram_addr_from_host(void *ptr
);
71 RAMBlock
*qemu_ram_block_by_name(const char *name
);
72 RAMBlock
*qemu_ram_block_from_host(void *ptr
, bool round_offset
,
74 ram_addr_t
qemu_ram_block_host_offset(RAMBlock
*rb
, void *host
);
75 void qemu_ram_set_idstr(RAMBlock
*block
, const char *name
, DeviceState
*dev
);
76 void qemu_ram_unset_idstr(RAMBlock
*block
);
77 const char *qemu_ram_get_idstr(RAMBlock
*rb
);
78 void *qemu_ram_get_host_addr(RAMBlock
*rb
);
79 ram_addr_t
qemu_ram_get_offset(RAMBlock
*rb
);
80 ram_addr_t
qemu_ram_get_used_length(RAMBlock
*rb
);
81 ram_addr_t
qemu_ram_get_max_length(RAMBlock
*rb
);
82 bool qemu_ram_is_shared(RAMBlock
*rb
);
83 bool qemu_ram_is_noreserve(RAMBlock
*rb
);
84 bool qemu_ram_is_uf_zeroable(RAMBlock
*rb
);
85 void qemu_ram_set_uf_zeroable(RAMBlock
*rb
);
86 bool qemu_ram_is_migratable(RAMBlock
*rb
);
87 void qemu_ram_set_migratable(RAMBlock
*rb
);
88 void qemu_ram_unset_migratable(RAMBlock
*rb
);
90 size_t qemu_ram_pagesize(RAMBlock
*block
);
91 size_t qemu_ram_pagesize_largest(void);
94 * cpu_address_space_init:
95 * @cpu: CPU to add this address space to
96 * @asidx: integer index of this address space
97 * @prefix: prefix to be used as name of address space
98 * @mr: the root memory region of address space
100 * Add the specified address space to the CPU's cpu_ases list.
101 * The address space added with @asidx 0 is the one used for the
102 * convenience pointer cpu->as.
103 * The target-specific code which registers ASes is responsible
104 * for defining what semantics address space 0, 1, 2, etc have.
106 * Before the first call to this function, the caller must set
107 * cpu->num_ases to the total number of address spaces it needs
110 * Note that with KVM only one address space is supported.
112 void cpu_address_space_init(CPUState
*cpu
, int asidx
,
113 const char *prefix
, MemoryRegion
*mr
);
115 void cpu_physical_memory_rw(hwaddr addr
, void *buf
,
116 hwaddr len
, bool is_write
);
117 static inline void cpu_physical_memory_read(hwaddr addr
,
118 void *buf
, hwaddr len
)
120 cpu_physical_memory_rw(addr
, buf
, len
, false);
122 static inline void cpu_physical_memory_write(hwaddr addr
,
123 const void *buf
, hwaddr len
)
125 cpu_physical_memory_rw(addr
, (void *)buf
, len
, true);
127 void cpu_reloading_memory_map(void);
128 void *cpu_physical_memory_map(hwaddr addr
,
131 void cpu_physical_memory_unmap(void *buffer
, hwaddr len
,
132 bool is_write
, hwaddr access_len
);
133 void cpu_register_map_client(QEMUBH
*bh
);
134 void cpu_unregister_map_client(QEMUBH
*bh
);
136 bool cpu_physical_memory_is_io(hwaddr phys_addr
);
138 /* Coalesced MMIO regions are areas where write operations can be reordered.
139 * This usually implies that write operations are side-effect free. This allows
140 * batching which can make a major impact on performance when using
143 void qemu_flush_coalesced_mmio_buffer(void);
145 void cpu_flush_icache_range(hwaddr start
, hwaddr len
);
147 typedef int (RAMBlockIterFunc
)(RAMBlock
*rb
, void *opaque
);
149 int qemu_ram_foreach_block(RAMBlockIterFunc func
, void *opaque
);
150 int ram_block_discard_range(RAMBlock
*rb
, uint64_t start
, size_t length
);
154 /* Returns: 0 on success, -1 on error */
155 int cpu_memory_rw_debug(CPUState
*cpu
, vaddr addr
,
156 void *ptr
, size_t len
, bool is_write
);
159 extern int singlestep
;
161 #endif /* CPU_COMMON_H */