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Diffstat (limited to 'fsdev')
-rw-r--r--fsdev/file-op-9p.h4
-rw-r--r--fsdev/qemu-fsdev.c7
2 files changed, 9 insertions, 2 deletions
diff --git a/fsdev/file-op-9p.h b/fsdev/file-op-9p.h
index 908e2a5edc..5788ff911c 100644
--- a/fsdev/file-op-9p.h
+++ b/fsdev/file-op-9p.h
@@ -56,10 +56,12 @@ typedef struct extended_ops {
* On failure ignore the error.
*/
#define V9FS_SM_NONE 0x00000010
-
+#define V9FS_RDONLY 0x00000020
#define V9FS_SEC_MASK 0x0000001C
+
+
typedef struct FsContext
{
uid_t uid;
diff --git a/fsdev/qemu-fsdev.c b/fsdev/qemu-fsdev.c
index 5977bcca4c..27d10cb3b3 100644
--- a/fsdev/qemu-fsdev.c
+++ b/fsdev/qemu-fsdev.c
@@ -35,7 +35,7 @@ int qemu_fsdev_add(QemuOpts *opts)
const char *path = qemu_opt_get(opts, "path");
const char *sec_model = qemu_opt_get(opts, "security_model");
const char *writeout = qemu_opt_get(opts, "writeout");
-
+ bool ro = qemu_opt_get_bool(opts, "readonly", 0);
if (!fsdev_id) {
fprintf(stderr, "fsdev: No id specified\n");
@@ -86,6 +86,11 @@ int qemu_fsdev_add(QemuOpts *opts)
fsle->fse.export_flags |= V9FS_IMMEDIATE_WRITEOUT;
}
}
+ if (ro) {
+ fsle->fse.export_flags |= V9FS_RDONLY;
+ } else {
+ fsle->fse.export_flags &= ~V9FS_RDONLY;
+ }
if (strcmp(fsdriver, "local")) {
goto done;