diff options
Diffstat (limited to 'accel/tcg/internal.h')
| -rw-r--r-- | accel/tcg/internal.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/accel/tcg/internal.h b/accel/tcg/internal.h index 62da49ed52..a77b110b78 100644 --- a/accel/tcg/internal.h +++ b/accel/tcg/internal.h @@ -35,6 +35,27 @@ typedef struct PageDesc { #endif } PageDesc; +/* Size of the L2 (and L3, etc) page tables. */ +#define V_L2_BITS 10 +#define V_L2_SIZE (1 << V_L2_BITS) + +/* + * L1 Mapping properties + */ +extern int v_l1_size; +extern int v_l1_shift; +extern int v_l2_levels; + +/* + * The bottom level has pointers to PageDesc, and is indexed by + * anything from 4 to (V_L2_BITS + 3) bits, depending on target page size. + */ +#define V_L1_MIN_BITS 4 +#define V_L1_MAX_BITS (V_L2_BITS + 3) +#define V_L1_MAX_SIZE (1 << V_L1_MAX_BITS) + +extern void *l1_map[V_L1_MAX_SIZE]; + PageDesc *page_find_alloc(tb_page_addr_t index, bool alloc); static inline PageDesc *page_find(tb_page_addr_t index) @@ -42,12 +63,46 @@ static inline PageDesc *page_find(tb_page_addr_t index) return page_find_alloc(index, false); } +/* list iterators for lists of tagged pointers in TranslationBlock */ +#define TB_FOR_EACH_TAGGED(head, tb, n, field) \ + for (n = (head) & 1, tb = (TranslationBlock *)((head) & ~1); \ + tb; tb = (TranslationBlock *)tb->field[n], n = (uintptr_t)tb & 1, \ + tb = (TranslationBlock *)((uintptr_t)tb & ~1)) + +#define PAGE_FOR_EACH_TB(pagedesc, tb, n) \ + TB_FOR_EACH_TAGGED((pagedesc)->first_tb, tb, n, page_next) + +#define TB_FOR_EACH_JMP(head_tb, tb, n) \ + TB_FOR_EACH_TAGGED((head_tb)->jmp_list_head, tb, n, jmp_list_next) + +/* In user-mode page locks aren't used; mmap_lock is enough */ +#ifdef CONFIG_USER_ONLY +#define assert_page_locked(pd) tcg_debug_assert(have_mmap_lock()) +static inline void page_lock(PageDesc *pd) { } +static inline void page_unlock(PageDesc *pd) { } +#else +#ifdef CONFIG_DEBUG_TCG +void do_assert_page_locked(const PageDesc *pd, const char *file, int line); +#define assert_page_locked(pd) do_assert_page_locked(pd, __FILE__, __LINE__) +#else +#define assert_page_locked(pd) +#endif +void page_lock(PageDesc *pd); +void page_unlock(PageDesc *pd); +#endif + TranslationBlock *tb_gen_code(CPUState *cpu, target_ulong pc, target_ulong cs_base, uint32_t flags, int cflags); G_NORETURN void cpu_io_recompile(CPUState *cpu, uintptr_t retaddr); void page_init(void); void tb_htable_init(void); +void tb_reset_jump(TranslationBlock *tb, int n); +TranslationBlock *tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc, + tb_page_addr_t phys_page2); +bool tb_invalidate_phys_page(tb_page_addr_t addr, uintptr_t pc); +int cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb, + uintptr_t searched_pc, bool reset_icount); /* Return the current PC from CPU, which may be cached in TB. */ static inline target_ulong log_pc(CPUState *cpu, const TranslationBlock *tb) |