diff options
Diffstat (limited to 'exec.c')
| -rw-r--r-- | exec.c | 23 |
1 files changed, 23 insertions, 0 deletions
@@ -118,6 +118,11 @@ __thread CPUState *current_cpu; 2 = Adaptive rate instruction counting. */ int use_icount; +uintptr_t qemu_host_page_size; +intptr_t qemu_host_page_mask; +uintptr_t qemu_real_host_page_size; +intptr_t qemu_real_host_page_mask; + bool set_preferred_target_page_bits(int bits) { /* The target page size is the lowest common denominator for all @@ -2312,6 +2317,7 @@ static void notdirty_mem_write(void *opaque, hwaddr ram_addr, { bool locked = false; + assert(tcg_enabled()); if (!cpu_physical_memory_get_dirty_flag(ram_addr, DIRTY_MEMORY_CODE)) { locked = true; tb_lock(); @@ -2370,6 +2376,7 @@ static void check_watchpoint(int offset, int len, MemTxAttrs attrs, int flags) CPUWatchpoint *wp; uint32_t cpu_flags; + assert(tcg_enabled()); if (cpu->watchpoint_hit) { /* We re-entered the check after replacing the TB. Now raise * the debug interrupt so that is will trigger after the @@ -2815,6 +2822,7 @@ static void invalidate_and_set_dirty(MemoryRegion *mr, hwaddr addr, cpu_physical_memory_range_includes_clean(addr, length, dirty_log_mask); } if (dirty_log_mask & (1 << DIRTY_MEMORY_CODE)) { + assert(tcg_enabled()); tb_lock(); tb_invalidate_phys_range(addr, addr + length); tb_unlock(); @@ -3590,3 +3598,18 @@ err: } #endif + +void page_size_init(void) +{ + /* NOTE: we can always suppose that qemu_host_page_size >= + TARGET_PAGE_SIZE */ + qemu_real_host_page_size = getpagesize(); + qemu_real_host_page_mask = -(intptr_t)qemu_real_host_page_size; + if (qemu_host_page_size == 0) { + qemu_host_page_size = qemu_real_host_page_size; + } + if (qemu_host_page_size < TARGET_PAGE_SIZE) { + qemu_host_page_size = TARGET_PAGE_SIZE; + } + qemu_host_page_mask = -(intptr_t)qemu_host_page_size; +} |