The Domain ID is currently expected to fit in 3 digits.
When doing extensive testing on SAVE/RESTORE I can easily get ID's
into the 4-digit range, which makes some of the formatting to get out
of sync. Extend the width to 5 digits (and change some %-ns to %ns, as
the ID for example is right justified, %-ns is left-justified, which
didn't look too good).
Signed-off-by: Mats Petersson <mats.petersson@amd.com>
The function XendDomainInfo:_releaseDevices() is called during the
save/destroy phase of a domain. It made some attempt to clean up the
devices, but wasn't complete, leaving dangling devices in the
xenstore. Not a big problem with normal use of Xen, but a buildup over
a large number of save/destroy instances, it would make the xenstore
database grow quite large, which in turn meant swap-thrashing in Dom0.
This patch makes use of the destroyDevices() function in
XendDomainInfo. This function needed some re-writing to make it work
correctly - I think it had some old code (not sure how old, as xm
annotate says that it's changeset 12071, but that, I think, is when it
was split out from XendDomain.py, rather than when it was created).
I have tested this over a few hundred save/restore cycles [two domains
constantly saved/restored with a short sleep to let them process some
work] combined with a loop of "xenstore-ls|wc". The output of the
latter is pretty much constant (it obviously varies a bit depending on
when in the save/restore cycle it hits). Previously, it would increase
by some 10 lines or so per save/restore cycle.
Signed-off-by: Mats Petersson <mats.petersson@amd.com>
If creating an unmanaged guest (eg xm create), if device hotplug fails
during the startup of the guest, then the guest will be torn down
again. If creating and starting a managed guest (eg xm new && xm
start), then if device hotplug fails, the still born guest gets left
in 'paused' state. This confuses users no end, who go an unpause and
then get all upset when it shortly crashes (due to lack of disk or
network devices).
The attached patch fixes XenDomain.py's domain_start() method so that
if waitForDevices() fails, then the entire domain is torn down. This
is the same approach used in xm create.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When I changed the scheduler parameters of a domain with
xm sched-credit, the information of xm sched-credit was changed.
But as for the information of xm list, the values of the domain
configuration definition were kept.
And, then I rebooted the domain. The information of xm list was
not changed. But as for the information of xm sched-credit, the
values of the domain configuration definition were returned.
# xm create /xen/PVdomain.1 cpu_cap=150 cpu_weight=512
Using config file "/xen/PVdomain.1".
Started domain PVdomain.1
# xm sched-credit -d PVdomain.1
Name ID Weight Cap
PVdomain.1 1 512 150
# xm sched-credit -d PVdomain.1 -c 75 -w 384
# xm sched-credit -d PVdomain.1
Name ID Weight Cap
PVdomain.1 1 384 75
# xm list --long PVdomain.1 | grep cpu_
(cpu_weight 512)
(cpu_cap 150)
(cpu_time 29.353831745)
# xm reboot PVdomain.1
# xm sched-credit -d PVdomain.1
Name ID Weight Cap
PVdomain.1 2 512 150
# xm list --long PVdomain.1 | grep cpu_
(cpu_weight 512)
(cpu_cap 150)
(cpu_time 5.950247186)
If the scheduler parameters of the domain were changed with
xm sched-credit, I think that xm list should show the current
values about the scheduler parameters.
And, then if the domain is rebooted, I think that the rebooted
domain should keep the preceding values about the scheduler
parameters.
Signed-off-by: Masaki Kanno <kanno.masaki@jp.fujitsu.com>
Implement a simpler interface for the hypercalls to ACM. I put the
parameters to all hypercalls into a union. On top of this I have
implemented a shim layer for enabling ACM hypercalls on PPC.
Signed-off-by: Stefan Berger <stefanb@us.ibm.com>
stage of migration in Xend. The problem was cause by a deletion of the VM domain
ID which is used by testDevicecompleComplete ->deviceIDs->backendRoot() to get
the virtual backend device path. The virtual backend device path is used to
check if a device still exists in xenstore.
Signed-off-by: Yung Giang <yung.giang@gmail.com>
domain builder and in to python code.
This knowledge will be useful to allow us to pre-seed the protocol
field in a VBD entry in xenstore which will allow us to run older
kernels in a 32on64 mixed environment.
Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
Fix wrong python list assignment for "monitor=1". The old assignment
only works when using qemu-dm.debug in configure file.
Signed-off-by: You YongKang <yongkang.you@intel.com>
Signed-off-by: Zhang Xin <xing.z.zhang@intel.com>
Currently it returns supported_bootloaders as a string. This patch
returns supported_bootloaders as a 'string set' - per the spec. The
c-bindings fail to parse response, expecting a set but only finding a
string.
Signed-off-by: Jim Fehlig <jfehlig@novell.com>
The xen.xend.server.SrvDomain class provides an op_save method for
saving guests. This just calls into the domain_save method on
xen.xend.XenDomain The latter recently gained an extra 'checkpoint'
argument, but the SrvDomain class is not providing this. The attached
patch simply makes the 'checkpoint' arg default to 'False' if not
provided by the caller which makes old calling convention.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
_storeChanged() was incorrectly comparing a string to an sxpr, thus
always firing and causing unnecessary watches to be fired in the
domU.
Signed-off-by: John Levon <john.levon@sun.com>
In Xen 3.0.3 series release, if one did 'xm create -c someguest' then
you would be shown the pygrub boot menu, allowing one to pick a
kernel. If you didn't use the -c arg, then it'd just pick the default
kernel.
In Xen 3.0.5 testing, xm is forcing the addition of the '-q' flag
whenever the 'bootargs' parameter is not given in the config file. So
if one does not have 'bootargs' specified, and one uses 'xm create -c
someguest' you never get to see the pygrub boot menu.
This patch fixes 'xm create' so that it does not add the '-q' flag
to the bootloader args, if the '-c' flag is given to xm create. This
makes the default user experiance operate closer to user
expectations.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
In XendDomainInfo, BOOTLOADER_LOOPBACK_DEVICE is defined to be
'/dev/xvdp'. However, there is still one place in this file that has
'/dev/xvdp' hard-coded.
Signed-off-by: Charles Coffing <ccoffing@novell.com>
kfraser@localhost.localdomain