9dc44aa582
When using a memory-backend object with prealloc turned on, QEMU will memset() the first byte in every memory page to zero. While this might have been acceptable for memory backends associated with RAM, this corrupts application data for NVDIMMs. Instead of setting every page to zero, read the current byte value and then just write that same value back, so we are not corrupting the original data. Directly write the value instead of memset()ing it, since there's no benefit to memset for a single byte write. Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Message-id: 20170303113255.28262-1-berrange@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> |
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| .. | ||
| acl.c | ||
| aio-posix.c | ||
| aio-win32.c | ||
| aiocb.c | ||
| async.c | ||
| base64.c | ||
| bitmap.c | ||
| bitops.c | ||
| buffer.c | ||
| bufferiszero.c | ||
| compatfd.c | ||
| coroutine-gthread.c | ||
| coroutine-sigaltstack.c | ||
| coroutine-ucontext.c | ||
| coroutine-win32.c | ||
| crc32c.c | ||
| cutils.c | ||
| envlist.c | ||
| error.c | ||
| event_notifier-posix.c | ||
| event_notifier-win32.c | ||
| fifo8.c | ||
| getauxval.c | ||
| hbitmap.c | ||
| hexdump.c | ||
| host-utils.c | ||
| id.c | ||
| iohandler.c | ||
| iov.c | ||
| keyval.c | ||
| lockcnt.c | ||
| log.c | ||
| main-loop.c | ||
| Makefile.objs | ||
| memfd.c | ||
| mmap-alloc.c | ||
| module.c | ||
| notify.c | ||
| osdep.c | ||
| oslib-posix.c | ||
| oslib-win32.c | ||
| path.c | ||
| qdist.c | ||
| qemu-config.c | ||
| qemu-coroutine-io.c | ||
| qemu-coroutine-lock.c | ||
| qemu-coroutine-sleep.c | ||
| qemu-coroutine.c | ||
| qemu-error.c | ||
| qemu-openpty.c | ||
| qemu-option.c | ||
| qemu-progress.c | ||
| qemu-sockets.c | ||
| qemu-thread-posix.c | ||
| qemu-thread-win32.c | ||
| qemu-timer-common.c | ||
| qemu-timer.c | ||
| qht.c | ||
| range.c | ||
| rcu.c | ||
| readline.c | ||
| thread-pool.c | ||
| throttle.c | ||
| timed-average.c | ||
| trace-events | ||
| unicode.c | ||
| uri.c | ||
| uuid.c | ||