diff options
Diffstat (limited to 'vl.c')
-rw-r--r-- | vl.c | 6 |
1 files changed, 6 insertions, 0 deletions
@@ -3346,6 +3346,12 @@ static int ram_load(QEMUFile *f, void *opaque, int version_id) if (flags & RAM_SAVE_FLAG_COMPRESS) { uint8_t ch = qemu_get_byte(f); +#if defined(__linux__) + if (ch == 0 && + (!kvm_enabled() || kvm_has_sync_mmu())) { + madvise(qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE, MADV_DONTNEED); + } else +#endif memset(qemu_get_ram_ptr(addr), ch, TARGET_PAGE_SIZE); } else if (flags & RAM_SAVE_FLAG_PAGE) qemu_get_buffer(f, qemu_get_ram_ptr(addr), TARGET_PAGE_SIZE); |