static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry) { ram_addr_t ram_addr; void *p; if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == io_mem_ram.ram_addr) { p = (void *)(unsigned long)((tlb_entry->addr_write & TARGET_PAGE_MASK) + tlb_entry->addend); ram_addr = qemu_ram_addr_from_host_nofail(p); if (!cpu_physical_memory_is_dirty(ram_addr)) { tlb_entry->addr_write |= TLB_NOTDIRTY; } } }