This patch fixes dom0 SMP vcpu hotplug. Currently, domains without
config files (e.g. dom0) don't set info['vcpus'] correctly resulting in
incorrect cpu availablity values in the store. This prevents hotplug
from functioning.
--
Ryan Harper
Software Engineer; Linux Technology Center
IBM Corp., Austin, Tx
(512) 838-9253 T/L: 678-9253
ryanh@xxxxxxxxxx
diffstat output:
XendDomainInfo.py | 15 +++++++++++----
1 files changed, 11 insertions(+), 4 deletions(-)
Signed-off-by: Ryan Harper <ryanh@xxxxxxxxxx>
---
diff -r 46f4f1eb70ca tools/python/xen/xend/XendDomainInfo.py
--- a/tools/python/xen/xend/XendDomainInfo.py Fri Nov 4 21:27:11 2005
+++ b/tools/python/xen/xend/XendDomainInfo.py Fri Nov 4 16:13:22 2005
@@ -425,13 +425,20 @@
defaultInfo('on_crash', lambda: "restart")
defaultInfo('cpu', lambda: None)
defaultInfo('cpu_weight', lambda: 1.0)
- defaultInfo('vcpus', lambda: int(1))
+
+ # some domains don't have a config file (e.g. dom0 )
+ # to set number of vcpus so we derive available cpus
+ # from max_vcpu_id which is present for running domains.
+ if not self.infoIsSet('vcpus') and self.infoIsSet('max_vcpu_id'):
+ avail = int(self.info['max_vcpu_id'])+1
+ else:
+ avail = int(1)
+
+ defaultInfo('vcpus', lambda: avail)
defaultInfo('online_vcpus', lambda: self.info['vcpus'])
-
- self.info['vcpus'] = int(self.info['vcpus'])
defaultInfo('max_vcpu_id', lambda: self.info['vcpus']-1)
-
defaultInfo('vcpu_avail', lambda: (1 << self.info['vcpus']) - 1)
+
defaultInfo('bootloader', lambda: None)
defaultInfo('backend', lambda: [])
defaultInfo('device', lambda: [])
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