diff options
Diffstat (limited to 'cpu-i386.h')
| -rw-r--r-- | cpu-i386.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/cpu-i386.h b/cpu-i386.h index e5bbf45a8b..6058252869 100644 --- a/cpu-i386.h +++ b/cpu-i386.h @@ -431,6 +431,30 @@ int cpu_x86_signal_handler(int host_signum, struct siginfo *info, #define X86_DUMP_CCOP 0x0002 /* dump qemu flag cache */ void cpu_x86_dump_state(CPUX86State *env, FILE *f, int flags); +/* page related stuff */ +#define TARGET_PAGE_BITS 12 +#define TARGET_PAGE_SIZE (1 << TARGET_PAGE_BITS) +#define TARGET_PAGE_MASK ~(TARGET_PAGE_SIZE - 1) +#define TARGET_PAGE_ALIGN(addr) (((addr) + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK) + +extern unsigned long real_host_page_size; +extern unsigned long host_page_bits; +extern unsigned long host_page_size; +extern unsigned long host_page_mask; + +#define HOST_PAGE_ALIGN(addr) (((addr) + host_page_size - 1) & host_page_mask) + +/* same as PROT_xxx */ +#define PAGE_READ 0x0001 +#define PAGE_WRITE 0x0002 +#define PAGE_EXEC 0x0004 +#define PAGE_BITS (PAGE_READ | PAGE_WRITE | PAGE_EXEC) +#define PAGE_VALID 0x0008 + +void page_dump(FILE *f); +int page_get_flags(unsigned long address); +void page_set_flags(unsigned long start, unsigned long end, int flags); + /* internal functions */ #define GEN_FLAG_CODE32_SHIFT 0 @@ -446,5 +470,6 @@ int cpu_x86_gen_code(uint8_t *gen_code_buf, int max_code_size, int *gen_code_size_ptr, uint8_t *pc_start, uint8_t *cs_base, int flags); void cpu_x86_tblocks_init(void); +void page_init(void); #endif /* CPU_I386_H */ |