existence and readability of the file given.
This fixes the issue detected in xm-tests 03_restore_badparm_neg and
04_restore_badfilename_neg.
Signed-off-by: Dan Smith <danms@us.ibm.com>
Signed-off-by: Ewan Mellor <ewan@xensource.com>
exists, and is writable.
This will fix the issue detected by xm-test 03_save_bogusfile_neg.
Signed-off-by: Dan Smith <danms@us.ibm.com>
Signed-off-by: Ewan Mellor <ewan@xensource.com>
avoid a stack trace when doing an 'xm list -l'. Most of the
prettyprint() methods were called with 1 argument, but the functions
required 2 (one of which was unused).
Signed-off-by: Dan Smith <danms@us.ibm.com>
Signed-off-by: Ewan Mellor <ewan@xensource.com>
and VM root totally into XendDomainInfo. The DBMap stuff was all cruft,
following the move to xstransact. Removing it may also help those suffering
from poor start-up times caused by a large store.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
for management of shutdown state, XendDomainInfo.refreshShutdown, which is
able to cope whatever the current state of the domain. This fixes bug #124:
running reboot within a domU doesn't bring the domain back up after shutdown,
and bug #256: "xm reboot" could not make domU reboot.
Fix the refreshing inside XendDomain to ensure that the values returned by xm
list reflect reality correctly. We were removing XendDomainInfo instances,
but not creating them on start-up, so if xend were restarted, domain
information was being lost.
Merge XendDomain.dom0_unknown and initial_refresh into
XendDomainInfo.recreate.
Catch exceptions inside callInfo, and reraise them as XendErrors.
Remove unused XendDomain.close.
Further improvements are needed to XendDomainInfo to ensure that it avoids all
race conditions on shutdown, and can cope correctly with xend restarting
during a shutdown.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
ImageHandler.create and findImageHandlerClass to the module level, and inline
addImageHandlerClass. Move ImageHandler.kernel, ramdisk, cmdline, and flags,
which seem inadvertently to have been declared as class variables, and make
them instance variables instead.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
into one handler that dynamically imports the correct subcommand handler.
Remove the fullhelp cruft, which was referencing something not actually present,
and was unused. Remove xm_network_attach and xm_network_detach, which were
providing code for unadvertised and unsupported functionality.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
This ensures that ImageHandler has the correct domain ID available to it, which
seems sensible in general, and is necessary for the VMX VNC support in
particular.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
Make xenstored use tdb, transactions can soft-fail (EAGAIN)
Transactions no longer take root dir, no longer lock & block: commit can fail spuriously with EAGAIN, not ETIMEDOUT.
Speeds up transactions by over 1000 times, should be NFS safe.
New program: xs_tdb_dump to dump raw TDB contents.
Don't do failure testing: we are no longer robust against all ENOMEM 8(
Introduce "struct node" which contains perms, children and data.
Make struct xs_permissions unpadded, so we can write to tdb w/o valgrind complaints.
Gently modify TDB to use talloc, not do alloc on tdb_delete.
Fix up transaction users for new semantics.
Don't need a transaction around a single read in xen/i386/kernel/smpboot.c.
Python: transaction_start() returns True/False rather than raising exception on EAGAIN.
Fix usage comment on xs_transaction_end().
Include stdarg to xs_tdb_dump so it compiles.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
needed any of the state of image.py was the bootloader code, which says there,
but all the rest was doing something that belonged more properly in
XendDomainInfo, with all the other generic domain initialisation code.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
This is one of the first things to be used when xenstored starts up, so a
corrupted filesystem may manifest itself here.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
Fix the use of configuration inside domain_configure. The config written by
XendDomainInfo.sxpr has moved, and this function needs to change to match.
Re-add a call to _add_domain inside domain_restore.
Inside XendDomainInfo.restore, perform the appropriate configuration to restore
the domain.
Validate maxmem_KiB, and cap it at memory_KiB if over that value. Save
requires that value to be correct, as the logic for saving only the pages
in use is not in place inside Xen.
Output the device configuration in sxpr(), as required for save-restore.
Check for image being null when trying to call createDeviceModel -- configure
is called on restore as well as create, and the ImageHandler instance is not
present in the former.
Remove dead code create_blkif.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
destroy Dom0. Currently, xm does not return an error for this case.
Xend tries to destroy dom0 and leaves the system in an unstable
state. Subsequent attempts to create a domain result in the following
error message:
Error: Error creating domain: (106, 'Transport endpoint is already \
connected')
This will fix bugzilla bug #243
Signed-off-by: Dan Smith <danms@us.ibm.com>
6984, this patch fixes it.
Also print vmx builder parameters before calling vmx builer, just like
what's done before calling linux builder.
With this patch, qemu dm using SDL can work, however qemu dm using VNC
still has bug, we will fix it soon.
Signed-off-by: Xin Li <xin.b.li@intel.com>
XendDomainInfo out from the rest of the code, creating an intermediate
dictionary of common format. This means that the rest of XendDomainInfo can
work whether creating a domain for the first time, or whether xend is
restarted but the domains still exist. This means that xend is now robust in
the face of restarts. The phase of validation of configuration details is
now more explicit, and stronger too.
Change the handling of memory sizes in XendDomainInfo's interface to use KiB
in setMemoryTarget and getMemoryTarget. This gives reasonable granularity
whilst ensuring that we can handle values up to 2TiB without overflowing a
signed 32 bit value. It is not clear that the xend code, especially the C /
Python interface, is either 64-bit clean or unsigned 32-bit clean, so this is
the safest choice for now. The behaviour of Python's shift operator will
change in Python 2.4, so it is best to address this problem once we have moved
to that version.
Determine the backend flags on-the-fly, in getBackendFlags, rather than
computing them in advance in configureBackends and storing the value. Change
addControllerClass so that backend flag information is in this table too,
rather than hard-coded elsewhere.
Improve the error reporting for name clashes.
Remove XendDomainInfo's dependence upon DBMap, and use xstransact directly
instead. This changes the interface from XendDomain to XendDomainInfo, as
paths rather than DBMaps are passed in.
Remove the XendDomainInfo.recreate and restore flags. Since the device and
domain handling is now stateless inside xend, much less work is necessary for
recreate and restore procedures, so we can do without these flags.
Remove XendDomainInfo's unused dependency upon SrvDaemon, and its unnecessary
dependence upon PrettyPrint. Remove the unused show method.
Decouple image.py from XendDomainInfo.bootloader by passing a bootloading flag
into initDomain instead. Decouple it from XendDomainInfo.config by passing
the semiparsed device configuration into create(). Move configuration in
VmxImageHandler so that rather than being scattered around the class it is in
or called from the configure method. Device configuration is no longer
available anywhere else.
From Dan Smith <danms@us.ibm.com>:
I could not find in the existing code the point at which
a domain was added to the XendDomain list after restore. Several
attempts to restore would result in positive log messages, but the
restored domain would not show up in "xm list". This patch includes a
call to _add_domain(), which results in restore working for me.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
_read and _write. Fix gather to not return the string 'None' when reading a
value of type string that does not exist. The value None should be returned
instead.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
parameters between functions in the base classes and those that override them
in subclasses. It's hard to see how this code worked at all.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
previously. This would have caused a memory leak when attempting to get info
on a domain that does not exist.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
underlying xc_domain_setmaxmem already took an unsigned int, and
PyArg_ParseTupleAndKeywords call was only parsing an int, so there is no way
that longer values would get through here in any case. Fixing the documentation
and the local variable is the best solution, until someone decides that we need
to support maxmem values greater than 2TiB.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
emellor@ewan
kaf24@firebug.cl.cam.ac.uk