xc_interface_open() may return -1, but if we define xc_fd as unsigned
int, then -1 will be > 0.
Signed-off-by: Zhigang Wang <zhigang.x.wang@oracle.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
I've noticed that the suspend event channel becomes pending as soon as
it is bound. I'm not sure why or whether this is intentional, but it
means that the suspend function will return before the domain has
completed suspending unless the first notification is cleared. Without
this patch, xc_domain_save may find that the guest has not suspended
and sleep in 10ms chunks until it does. Typically this is several
milliseconds of wasted time.
From: Brendan Cully <brendan@cs.ubc.ca>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
If the guest provides a suspend event channel through xenstore,
xc_save will use it in preference to the old xenstore-based method.
Xend is still informed when the domain has suspended so that it can
perform device migration in parallel with last-round migration.
Signed-off-by: Brendan Cully <brendan@cs.ubc.ca>
Use the same xenstore area for log-dirty commands as for save/continue,
and avoid a race condition by acking the save command after the save.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>
Fixes correctness issues with xenstored and gcc-4.2.
Original patch by Charles Coffing <ccoffing@novell.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
into xc_domain_save, like we did for xc_domain_restore
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>
--HG--
rename : tools/libxc/xc_linux_save.c => tools/libxc/xc_domain_save.c
into one function (and one file) since they share a lot of code
Signed-off-by: Tim Deegan <Tim.Deegan@øensource.com>
--HG--
rename : tools/libxc/xc_linux_restore.c => tools/libxc/xc_domain_restore.c
since it doesn't mean that any more. This is a sticking-plaster
to get HVM S/R working until the proper memory-map handling patch
is ready.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>
It's always an error to try to use sections on an executable; the
segments in the phdr are definitive.
Unfortunately we cannot drop SHT_NOTE support completely due to a
binutils bug which causes kernels to have the offset field of the
PT_NOTE phdr set to zero:
http://sourceware.org/bugzilla/show_bug.cgi?id=594
This bug is present in binutils 2.17 although some distros have
backported the fix.
Therefore we simply prefer a PT_NOTE segment if we find one otherwise
we still use the SHT_NOTE section (and then the old __xen_guest
section).
Based on a patch from Jeremy Fitzhardinge.
Also added XEN_ELFNOTE_HV_START_LOW to readnotes.
Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
These have been used interchangeably, which is OK for PV domains but
not for HVM. This fixes an over-allocation by 256MB when restoring
HVM guests that have more than 4GB of RAM.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>
in a HVM restore. In particular, don't print an uninitialized stack
variable, which causes XMLRPC exceptions in xend.
Signed-off-by: Tim Deegan <Tim.Deegan@xensource.com>
* Move .PHONY directives next to targets,
this makes them a lot harder to miss
* Add missing .PHONY directives
* Remove nonexistent .PHONY directives
* Hopefully I didn'T miss anything...
Signed-Off-By: Horms <horms@verge.net.au>
suspend, and push the printf("suspend") out of xc_linux_save and into xc_save.
This means that xc_linux_save can be used without the xc_save wrapper if
desired.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
and xenconsole out of /usr/libexec/xen and into one of /usr/lib/xen/bin or
/usr/lib64/xen/bin. Remove all the PATH hacking inside Xend, and rely upon
the PATH being set correctly from outside. Added an auxbin module for
handling the hacky stuff.
Replace the few /usr/bin/python bang paths with /usr/bin/env python.
Signed-off-by: Ewan Mellor <ewan@xensource.com>
- translate console mfn to pfn
- unbind/bind console evtchn
- recover console mfn on restore
- trigger xenconsoled refresh after mfn is put in store
Signed-off-by: Christian Limpach <Christian.Limpach@cl.cam.ac.uk>
Keir Fraser
Tim Deegan
Keir Fraser
kfraser@localhost.localdomain
Steven Hand
Ian Campbell
Emmanuel Ackaouy
kaf24@firebug.cl.cam.ac.uk
emellor@leeni.uk.xensource.com
emellor@ewan
cl349@firebug.cl.cam.ac.uk
shand@ubuntu.eng.hq.xensource.com