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-rw-r--r--qemu-nbd.texi7
1 files changed, 6 insertions, 1 deletions
diff --git a/qemu-nbd.texi b/qemu-nbd.texi
index 6955d90327..3e57200e76 100644
--- a/qemu-nbd.texi
+++ b/qemu-nbd.texi
@@ -29,7 +29,12 @@ Export QEMU disk image using NBD protocol.
@item -s, --snapshot
use snapshot file
@item -n, --nocache
- disable host cache
+@itemx --cache=@var{cache}
+ set cache mode to be used with the file. See the documentation of
+ the emulator's @code{-drive cache=...} option for allowed values.
+@item --aio=@var{aio}
+ choose asynchronous I/O mode between @samp{threads} (the default)
+ and @samp{native} (Linux only).
@item -c, --connect=@var{dev}
connect @var{filename} to NBD device @var{dev}
@item -d, --disconnect