diff options
Diffstat (limited to 'include/exec/cpu-common.h')
-rw-r--r-- | include/exec/cpu-common.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/include/exec/cpu-common.h b/include/exec/cpu-common.h new file mode 100644 index 000000000..039d422bf --- /dev/null +++ b/include/exec/cpu-common.h @@ -0,0 +1,113 @@ +#ifndef CPU_COMMON_H +#define CPU_COMMON_H + +/* CPU interfaces that are target independent. */ + +#ifndef CONFIG_USER_ONLY +#include "exec/hwaddr.h" +#endif + +/* The CPU list lock nests outside page_(un)lock or mmap_(un)lock */ +void qemu_init_cpu_list(void); +void cpu_list_lock(void); +void cpu_list_unlock(void); + +void tcg_flush_softmmu_tlb(CPUState *cs); + +void tcg_iommu_init_notifier_list(CPUState *cpu); +void tcg_iommu_free_notifier_list(CPUState *cpu); + +#if !defined(CONFIG_USER_ONLY) + +enum device_endian { + DEVICE_NATIVE_ENDIAN, + DEVICE_BIG_ENDIAN, + DEVICE_LITTLE_ENDIAN, +}; + +#if defined(HOST_WORDS_BIGENDIAN) +#define DEVICE_HOST_ENDIAN DEVICE_BIG_ENDIAN +#else +#define DEVICE_HOST_ENDIAN DEVICE_LITTLE_ENDIAN +#endif + +/* address in the RAM (different from a physical address) */ +#if defined(CONFIG_XEN_BACKEND) +typedef uint64_t ram_addr_t; +# define RAM_ADDR_MAX UINT64_MAX +# define RAM_ADDR_FMT "%" PRIx64 +#else +typedef uintptr_t ram_addr_t; +# define RAM_ADDR_MAX UINTPTR_MAX +# define RAM_ADDR_FMT "%" PRIxPTR +#endif + +/* memory API */ + +void qemu_ram_remap(ram_addr_t addr, ram_addr_t length); +/* This should not be used by devices. */ +ram_addr_t qemu_ram_addr_from_host(void *ptr); +RAMBlock *qemu_ram_block_by_name(const char *name); +RAMBlock *qemu_ram_block_from_host(void *ptr, bool round_offset, + ram_addr_t *offset); +ram_addr_t qemu_ram_block_host_offset(RAMBlock *rb, void *host); +void qemu_ram_set_idstr(RAMBlock *block, const char *name, DeviceState *dev); +void qemu_ram_unset_idstr(RAMBlock *block); +const char *qemu_ram_get_idstr(RAMBlock *rb); +void *qemu_ram_get_host_addr(RAMBlock *rb); +ram_addr_t qemu_ram_get_offset(RAMBlock *rb); +ram_addr_t qemu_ram_get_used_length(RAMBlock *rb); +ram_addr_t qemu_ram_get_max_length(RAMBlock *rb); +bool qemu_ram_is_shared(RAMBlock *rb); +bool qemu_ram_is_noreserve(RAMBlock *rb); +bool qemu_ram_is_uf_zeroable(RAMBlock *rb); +void qemu_ram_set_uf_zeroable(RAMBlock *rb); +bool qemu_ram_is_migratable(RAMBlock *rb); +void qemu_ram_set_migratable(RAMBlock *rb); +void qemu_ram_unset_migratable(RAMBlock *rb); + +size_t qemu_ram_pagesize(RAMBlock *block); +size_t qemu_ram_pagesize_largest(void); + +void cpu_physical_memory_rw(hwaddr addr, void *buf, + hwaddr len, bool is_write); +static inline void cpu_physical_memory_read(hwaddr addr, + void *buf, hwaddr len) +{ + cpu_physical_memory_rw(addr, buf, len, false); +} +static inline void cpu_physical_memory_write(hwaddr addr, + const void *buf, hwaddr len) +{ + cpu_physical_memory_rw(addr, (void *)buf, len, true); +} +void *cpu_physical_memory_map(hwaddr addr, + hwaddr *plen, + bool is_write); +void cpu_physical_memory_unmap(void *buffer, hwaddr len, + bool is_write, hwaddr access_len); +void cpu_register_map_client(QEMUBH *bh); +void cpu_unregister_map_client(QEMUBH *bh); + +bool cpu_physical_memory_is_io(hwaddr phys_addr); + +/* Coalesced MMIO regions are areas where write operations can be reordered. + * This usually implies that write operations are side-effect free. This allows + * batching which can make a major impact on performance when using + * virtualization. + */ +void qemu_flush_coalesced_mmio_buffer(void); + +void cpu_flush_icache_range(hwaddr start, hwaddr len); + +typedef int (RAMBlockIterFunc)(RAMBlock *rb, void *opaque); + +int qemu_ram_foreach_block(RAMBlockIterFunc func, void *opaque); +int ram_block_discard_range(RAMBlock *rb, uint64_t start, size_t length); + +#endif + +/* vl.c */ +extern int singlestep; + +#endif /* CPU_COMMON_H */ |