static int ram_load(QEMUFile *f, void *opaque, int version_id) { ram_addr_t addr; int flags; if (version_id != 3) return -EINVAL; do { addr = qemu_get_be64(f); flags = addr & ~TARGET_PAGE_MASK; addr &= TARGET_PAGE_MASK; if (flags & RAM_SAVE_FLAG_MEM_SIZE) { if (addr != last_ram_offset) return -EINVAL; } if (flags & RAM_SAVE_FLAG_COMPRESS) { uint8_t ch = qemu_get_byte(f); memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE); #ifndef _WIN32 if (ch == 0 && (!kvm_enabled() || kvm_has_sync_mmu())) { madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED); } #endif } else if (flags & RAM_SAVE_FLAG_PAGE) { qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE); } if (qemu_file_has_error(f)) { return -EIO; } } while (!(flags & RAM_SAVE_FLAG_EOS)); return 0; }