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-rw-r--r--qemu-options.hx4
1 files changed, 4 insertions, 0 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index 3728e9b4dd..f11c4ac960 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -693,6 +693,10 @@ This is the protocol-level block driver for accessing regular files.
 The path to the image file in the local filesystem
 @item aio
 Specifies the AIO backend (threads/native, default: threads)
+@item locking
+Specifies whether the image file is protected with Linux OFD / POSIX locks. The
+default is to use the Linux Open File Descriptor API if available, otherwise no
+lock is applied.  (auto/on/off, default: auto)
 @end table
 Example:
 @example