Handle VIR_STORAGE_TYPE_DIR in qemuBlockStorageSourceGetBackendProps so
that a 'vvfat' driver is used, which emulates a FAT filesystem
containing the folders.
qemu requires us to add it as a storage layer, since a 'raw' layer is
usually put on top of it.
Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
src/qemu/qemu_block.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_block.c b/src/qemu/qemu_block.c
index 6cf41cf544..516b006ce9 100644
--- a/src/qemu/qemu_block.c
+++ b/src/qemu/qemu_block.c
@@ -992,6 +992,25 @@ qemuBlockStorageSourceGetFileProps(virStorageSourcePtr src)
}
+static virJSONValuePtr
+qemuBlockStorageSourceGetVvfatProps(virStorageSourcePtr src)
+{
+ virJSONValuePtr ret = NULL;
+
+ /* libvirt currently does not handle the following attributes:
+ * '*fat-type': 'int'
+ * '*label': 'str'
+ */
+ ignore_value(virJSONValueObjectCreate(&ret,
+ "s:driver", "vvfat",
+ "s:dir", src->path,
+ "b:floppy", src->floppyimg,
+ "b:rw", !src->readonly, NULL));
+
+ return ret;
+}
+
+
/**
* qemuBlockStorageSourceGetBackendProps:
* @src: disk source
@@ -1008,11 +1027,17 @@ qemuBlockStorageSourceGetBackendProps(virStorageSourcePtr src)
switch ((virStorageType) actualType) {
case VIR_STORAGE_TYPE_BLOCK:
case VIR_STORAGE_TYPE_FILE:
- case VIR_STORAGE_TYPE_DIR:
if (!(fileprops = qemuBlockStorageSourceGetFileProps(src)))
return NULL;
break;
+ case VIR_STORAGE_TYPE_DIR:
+ /* qemu handles directories by exposing them as a device with emulated
+ * FAT filesystem */
+ if (!(fileprops = qemuBlockStorageSourceGetVvfatProps(src)))
+ return NULL;
+ break;
+
case VIR_STORAGE_TYPE_VOLUME:
case VIR_STORAGE_TYPE_NONE:
case VIR_STORAGE_TYPE_LAST:
--
2.14.3
--
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