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authorDominik Dingel <dingel@linux.vnet.ibm.com>2013-04-26 02:12:49 +0000
committerAlexander Graf <agraf@suse.de>2013-04-26 20:18:24 +0200
commit7dc5af5545bb72e1343cc959b3f0e5cdd8758f1f (patch)
treefd4d335c9a8454fcb8fc617e4e5e79bcd785a0b6 /vl.c
parentba747cc8f31a1de7e0a20e7f0cf97965be338e70 (diff)
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Common: Add quick access to first boot device
Instead of manually parsing the boot_list as character stream, we can access the nth boot device, specified by the position in the boot order. Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'vl.c')
-rw-r--r--vl.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/vl.c b/vl.c
index 2e0d1a7..322ea80 100644
--- a/vl.c
+++ b/vl.c
@@ -1222,6 +1222,24 @@ void add_boot_device_path(int32_t bootindex, DeviceState *dev,
QTAILQ_INSERT_TAIL(&fw_boot_order, node, link);
}
+DeviceState *get_boot_device(uint32_t position)
+{
+ uint32_t counter = 0;
+ FWBootEntry *i = NULL;
+ DeviceState *res = NULL;
+
+ if (!QTAILQ_EMPTY(&fw_boot_order)) {
+ QTAILQ_FOREACH(i, &fw_boot_order, link) {
+ if (counter == position) {
+ res = i->dev;
+ break;
+ }
+ counter++;
+ }
+ }
+ return res;
+}
+
/*
* This function returns null terminated string that consist of new line
* separated device paths.