This patch eliminate the global variables in libxenctrl (used for
logging and error reporting).
Instead the information which was in the global variables is now in a
new xc_interface* opaque structure, which xc_interface open returns
instead of the raw file descriptor; furthermore, logging is done via
xentoollog.
There are three new parameters to xc_interface_open to control the
logging, but existing callers can just pass "0" for all three to get
the old behaviour.
All libxc callers have been adjusted accordingly.
Also update QEMU_TAG for corresponding qemu change.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Newlib unaccountably defines _daylight, _timezone and _tzname, rather
than daylight, timezone and tzname. The latter are specified in
SuSv3.
So do a global search and replace as part of our newlib patching :-(.
Signed-off-by: Ian Jackson <Ian.Jackson@eu.citrix.com>
When no fb is available, init_fbfront will return, so the local
semaphore for synchronization with the kbd thread would get dropped.
Using a global static semaphore instead fixes this.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
In a few places in the tree the Makefiles have constructs like this:
one_file another_file:
$(COMMAND_WHICH_GENERATES_BOTH_AT_ONCE)
This is wrong, because make will run _two copies_ of the same command
at once. This generally causes races and hard-to-reproduce build
failures.
Notably, `make -j4' at the top level will build stubdom libxc twice
simultaneously!
In this patch we replace the occurrences of this construct with the
correct idiom:
one_file: another_file
another_file:
$(COMMAND_WHICH_GENERATES_BOTH_AT_ONCE)
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Add a couple of documentation details about PV-GRUB support
- the menu.lst content can be passed as a ramdisk.
- virtual partitions are not supported.
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
This defines how multiple modules can be passed to a domain by packing
them together into a "multiboot module" in a way very similar to the
multiboot standard. An SIF_ flag is added to announce such package.
This also adds a packing implementation to PV-GRUB.
Signed-Off-By: Samuel Thibault <samuel.thibault@ens-lyon.org>
Now that we have pcifront_watches to dynamically initialize pcifront
we don't need a call to init_pcifront in pcilib and pcifront_scan
anymore; we should just wait for the frontend to connect to the
backend instead.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
this patch implements dynamic connections and disconnections in
pcifront.
This feature is required to properly support pci hotplug, because when
no pci devices are assigned to a guest, xend will remove the pci
backend altogether.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
The built-in bash command wait should be able to take a pid argument
and just wait for the specified process to die, but it currently has a
bug and what actually does is waiting for the death of all the
children. For this reason the stubdom-dm script doesn't exit properly
after stubdom destruction. This patch solves the issue spawning only
one child, removing the sleep subprocess workaround that was used to
create a usable stdin for "xm console" and replacing it with a fifo.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This patch makes the destruction of stubdoms a synchronous event,
therefore it is no longer possible to run out of memory when rebooting
a guest because the stubdom of the old guest is always destroyed
before the creation of the new guest.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Currently the stubdom-dm script doesn't read the bridge of a vif
on xenstore, therefore all the vifs assigned to the stubdom always
belong to default bridge. This patch changes the behavior reading the
bridge from xenstore and adding the bridge to the stubdom config
file.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
The headers libelf.h and elfstructs.h were removed from
xen/include/public in 19011:7df072566b8c. But this broke the stubdom
build because parts of libxc depend on them. This patch adds
$(XEN_ROOT)/xen/include/xen to the stubdom -I path.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
19818 added the following line to stubdom-dm:
. ./stubdompath.sh
and replaced many paths with variables. However the path to
stubdompath.sh is obviously wrong and stubdompath.sh is nowhere to be
found anyway. For the moment I am dropping . ./stubdompath.sh and
hardcoding the values of the variables.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This patch fixes a race during live migration with stubdoms: right
after the stubdom dies the configuration file of the VM is removed by
stubdom-dm but, in case of a live migration, the configuration file
could be the one of the new VM in the process of being created.
Removing the config file before destroying the stubdom is enough to
solve the race.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Attached patch installs ioemu-stubdom into XENFIRMWAREDIR
analogous to what we do with hvmloader.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
- Have the buid system generate a file which exports the install paths
for the hotplug scripts and stubdom / stubdom-dm
- Move file generation code from tools/python/Makefile into a gmake
macro
in Config.mk to avoid maintenance of three duplicates each with its
own
tweaks and bugs
- Export gmake variables into ioemu as shell variables
for upcoming ioemu patches
- Do above as a gmake macro to avoid maintenance of several duplicates
- Adjust hotplug scripts to find the right xen binaries from the
install directory
- Adjust stubdom-dm to use the install directories
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Add support for the qemu monitor in a stubdom, the same way the
emulated serial support was added few days ago. The stubdom exports
the monitor as a pty and minios opens a console frontend; qemu in dom0
provides the correspondent backend for this additional pv console that
happens to be the qemu monitor.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Allow 'file' based disks, that are blkback based disks, to be shared
between the guest domain and the stubdom. It does so exploiting the
same exception introduced in the previous patch "stubdoms phy disks
sharing". Now we can remove the hack in stubdom-dm that forces "file"
disks to be opened using blktap instead of blkback.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
if they are to be linked with object files created by ocamlc and the minios
kernel.
This is needed to build stubdoms written in ocaml.
Signed-off-by: Alex Zeffertt <alex.zeffertt@eu.citrix.com>
Network support is still provided the same way: using the tap
interface, created in qemu using netfront.
The lwip stack is still available to avoid additional compilation
issues.
However the stubdom is not going to have its own vif anymore,
this means that the only vnc server supported is the one in dom0.
You can still enable the vnc server in a stubdom at compile time, if
you want so.
Probably the most important change caused by this patch to xen users
is that you don't have to specify two vif in the stubdom config file
anymore, but just one:
-vif = [ '', 'ip=10.0.1.1,mac=aa:00:00:12:23:34']
+vif = ['ip=10.0.1.1,mac=aa:00:00:12:23:34']
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This patch removes the need for a second configuration file for
stubdoms: it is going to be automatically generated by the script
stubdom-dm using command line options and xenstore to find any needed
information.
The configuration script will be placed under /etc/xen/stubdoms and
automatically removed when the domain is destroyed.
The only change needed in xend is not to write on xenstore sdl,
opengl and serial command line options for qemu, because stubdoms do
not support them.
It is safe to remove those two options from xenstore because qemu does
not use xenstore to read commans line options.
Finally this patch fixes blkfront disconnections from backends and
display and xauthority variables for pv guests.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Add __stack_chk_fail to mini-os and __sprintf_chk __fprintf_chk to
newlib, to cope with ocaml runtimes compiled with -fstack-protector.
From: "George S. Coker, II" <gscoker@alpha.ncsc.mil>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
xen-setup runs the upstream configure script, and ends up
autodetecting various properties of the host and then trying to use
them in stubdom, which works badly.
In commit c609854fe18aab3216f28e1e5291b75970d398d5 in
qemu-xen-unstable we provide a new `xen-setup-stubdom' script, which
hardcodes the relevant answers.
With these two changes, stubdom should compile again.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
We need to disable libvde in the stubdom qemu-xen configuration.
Thanks to Jun Koi for the report and testing.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
This patch adds a videoram parameter (4MB is the default) to pv guests
too: if the pv guest is actually a stubdomain then the videoram size
is added to the initial required available memory.
This way there is no risk that a stubdom fails to populate the
videoram because the RAM freed for the videoram by dom0 has already
been used to create the stubdom.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Changeset 19011:7df072566b8c moved some of the libelf headers.
However, no changes were made to stubdom/Makefile.
stubdom/Makefile unfortunately contains embedded in it knowledge about
the header directory structures, and must therefore typically be
updated if new header directories are created.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
I have copied the tarballs that the xen-unstable build downloads to
xenbits.xensource.com (which also hosts our hg and git). This patch
changes the download URLs to use that location.
That way the build will depend on only one external machine, under one
administration, rather than many. Also it means that the build won't
break if these sites become permanently unavailable or are rearranged
and we don't run a risk of having to panic and beg if a file should go
missing.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Keir Fraser