[PATCH] live-vm-common: add MKDOSFS_EXTRAOPTS variable

[Ed Bartosh <ed.bartosh@linux.intel.com>]

Sometimes it's needed to create FAT filesystem with specific
sector or cluster size, FAT size or to use one of other useful
mkdosfs options.

Introduced MKDOSFS_EXTRAOPTS variable to set options for mkdosfs.

[YOCTO #11709]

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
---
 meta/classes/image-live.bbclass     | 4 ++--
 meta/classes/image-vm.bbclass       | 2 +-
 meta/classes/live-vm-common.bbclass | 2 ++
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/meta/classes/image-live.bbclass b/meta/classes/image-live.bbclass
index 3a6e5f0..c1862b1 100644
--- a/meta/classes/image-live.bbclass
+++ b/meta/classes/image-live.bbclass
@@ -217,10 +217,10 @@ build_fat_img() {
 	fi
 
 	if [ -z "${HDDIMG_ID}" ]; then
-		mkdosfs ${FATSIZE} -n ${BOOTIMG_VOLUME_ID} -S 512 -C ${FATIMG} \
+		mkdosfs ${FATSIZE} -n ${BOOTIMG_VOLUME_ID} ${MKDOSFS_EXTRAOPTS} -C ${FATIMG} \
 			${BLOCKS}
 	else
-		mkdosfs ${FATSIZE} -n ${BOOTIMG_VOLUME_ID} -S 512 -C ${FATIMG} \
+		mkdosfs ${FATSIZE} -n ${BOOTIMG_VOLUME_ID} ${MKDOSFS_EXTRAOPTS} -C ${FATIMG} \
 		${BLOCKS} -i ${HDDIMG_ID}
 	fi
 
diff --git a/meta/classes/image-vm.bbclass b/meta/classes/image-vm.bbclass
index 98bd920..b52df9f 100644
--- a/meta/classes/image-vm.bbclass
+++ b/meta/classes/image-vm.bbclass
@@ -68,7 +68,7 @@ build_boot_dd() {
 
 	# Remove it since mkdosfs would fail when it exists
 	rm -f $HDDIMG
-	mkdosfs -n ${BOOTDD_VOLUME_ID} -S 512 -C $HDDIMG $BLOCKS 
+	mkdosfs -n ${BOOTDD_VOLUME_ID} ${MKDOSFS_EXTRAOPTS} -C $HDDIMG $BLOCKS
 	mcopy -i $HDDIMG -s $HDDDIR/* ::/
 
 	if [ "${PCBIOS}" = "1" ]; then
diff --git a/meta/classes/live-vm-common.bbclass b/meta/classes/live-vm-common.bbclass
index 27b137d..e1d8b18 100644
--- a/meta/classes/live-vm-common.bbclass
+++ b/meta/classes/live-vm-common.bbclass
@@ -15,6 +15,8 @@ EFI = "${@bb.utils.contains("MACHINE_FEATURES", "efi", "1", "0", d)}"
 EFI_PROVIDER ?= "grub-efi"
 EFI_CLASS = "${@bb.utils.contains("MACHINE_FEATURES", "efi", "${EFI_PROVIDER}", "", d)}"
 
+MKDOSFS_EXTRAOPTS ??= "-S 512"
+
 # Include legacy boot if MACHINE_FEATURES includes "pcbios" or if it does not
 # contain "efi". This way legacy is supported by default if neither is
 # specified, maintaining the original behavior.
-- 
2.1.4