diff options
Diffstat (limited to 'include/exec')
| -rw-r--r-- | include/exec/ram_addr.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/exec/ram_addr.h b/include/exec/ram_addr.h index cf1d4c7e1f..8fc75cdd2b 100644 --- a/include/exec/ram_addr.h +++ b/include/exec/ram_addr.h @@ -49,6 +49,21 @@ static inline bool cpu_physical_memory_get_dirty(ram_addr_t start, return next < end; } +static inline bool cpu_physical_memory_get_clean(ram_addr_t start, + ram_addr_t length, + unsigned client) +{ + unsigned long end, page, next; + + assert(client < DIRTY_MEMORY_NUM); + + end = TARGET_PAGE_ALIGN(start + length) >> TARGET_PAGE_BITS; + page = start >> TARGET_PAGE_BITS; + next = find_next_zero_bit(ram_list.dirty_memory[client], end, page); + + return next < end; +} + static inline bool cpu_physical_memory_get_dirty_flag(ram_addr_t addr, unsigned client) { @@ -64,6 +79,16 @@ static inline bool cpu_physical_memory_is_clean(ram_addr_t addr) return !(vga && code && migration); } +static inline bool cpu_physical_memory_range_includes_clean(ram_addr_t start, + ram_addr_t length) +{ + bool vga = cpu_physical_memory_get_clean(start, length, DIRTY_MEMORY_VGA); + bool code = cpu_physical_memory_get_clean(start, length, DIRTY_MEMORY_CODE); + bool migration = + cpu_physical_memory_get_clean(start, length, DIRTY_MEMORY_MIGRATION); + return vga || code || migration; +} + static inline void cpu_physical_memory_set_dirty_flag(ram_addr_t addr, unsigned client) { |