[PATCH 3/4] qemu: Add caps to indentify if setting wwn is supported by qemu

[Osier Yang <jyang@xxxxxxxxxx>]

This assumes ide-drive.wwn, ide-hd.wwn, ide-cd.wwn were supported
at the same time, similar for scsi-disk.wwn, scsi-hd.wwn, and
scsi-cd.wwn. So only two new caps (QEMU_CAPS_IDE_DRIVE_WWN,
and QEMU_CAPS_SCSI_DISK_WWN) are introduced.
---
 src/qemu/qemu_capabilities.c |    4 ++++
 src/qemu/qemu_capabilities.h |    2 ++
 2 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index ed85b6f..e7afe18 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -176,6 +176,8 @@ VIR_ENUM_IMPL(qemuCaps, QEMU_CAPS_LAST,
               "disable-s3",
 
               "disable-s4", /* 105 */
+              "ide-drive.wwn",
+              "scsi-disk.wwn",
     );
 
 struct qemu_feature_flags {
@@ -1497,6 +1499,8 @@ qemuCapsParseDeviceStr(const char *str, virBitmapPtr flags)
         qemuCapsSet(flags, QEMU_CAPS_VIRTIO_BLK_SCSI);
     if (strstr(str, "scsi-disk.channel"))
         qemuCapsSet(flags, QEMU_CAPS_SCSI_DISK_CHANNEL);
+    if (strstr(str, "scsi-disk.wwn"))
+        qemuCapsSet(flags, QEMU_CAPS_SCSI_DISK_WWN);
     if (strstr(str, "scsi-block"))
         qemuCapsSet(flags, QEMU_CAPS_SCSI_BLOCK);
     if (strstr(str, "scsi-cd"))
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 49d64e5..954e51d 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -141,6 +141,8 @@ enum qemuCapsFlags {
     QEMU_CAPS_BLOCKIO            = 103, /* -device ...logical_block_size & co */
     QEMU_CAPS_DISABLE_S3         = 104, /* S3 BIOS Advertisement on/off */
     QEMU_CAPS_DISABLE_S4         = 105, /* S4 BIOS Advertisement on/off */
+    QEMU_CAPS_IDE_DRIVE_WWN      = 106, /* Is ide-drive.wwn available? */
+    QEMU_CAPS_SCSI_DISK_WWN      = 107, /* Is scsi-disk.wwn available? */
 
     QEMU_CAPS_LAST,                   /* this must always be the last item */
 };
-- 
1.7.7.3

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