| Commit message (Collapse) | Author | Age | Files | Lines |
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Add and option to xl.conf file to decide if hotplug scripts are
executed from the toolstack (xl) or from udev as it used to be in the
past.
This option is only introduced in this patch, but it has no effect
since the code to call hotplug scripts from libxl is introduced in a
latter patch.
This choice will be saved in "libxl/disable_udev", as specified in the
DISABLE_UDEV_PATH constant.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This patch converts libxl_device_nic_add to an ao operation that
waits for device backend to reach state XenbusStateInitWait and then
marks the operation as completed. This is not really useful now, but
will be used by latter patches that will launch hotplug scripts after
we reached the desired xenbus state.
Calls to libxl_device_nic_add have also been moved to occur after the
device model has been launched, so when hotplug scripts are called
from this functions the interfaces already exists.
As usual, libxl_device_nic_add callers have been modified, and the
internal function libxl__device_disk_add has been used if the call was
inside an already running ao.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This patch converts libxl_device_disk_add to an ao operation that
waits for device backend to reach state XenbusStateInitWait and then
marks the operation as completed. This is not really useful now, but
will be used by later patches that will launch hotplug scripts after
we reached the desired xenbus state.
As usual, libxl_device_disk_add callers have been modified, and the
internal function libxl__device_disk_add has been used if the call was
inside an already running ao.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
[ ijc -- drop hunk modifying libxl_cdrom_insert which is not needed after
25670:3666e9712eaf "libxl: make libxl_cdrom_insert async" ]
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This will be needed in future patches, when libxl__device_disk_add
becomes async also. Create a new status structure that defines the
local attach of a disk device and use it in
libxl__device_disk_local_attach.
This is done in this patch to split the changes introduced when
libxl__device_disk_add becomes async.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Change libxl__device_disk_add to no longer take a xs transaction and
instead pass a helper for the local attach case that's used to get the
free vdev.
This function contains some non-functional changes due to an
indentation change.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Secondary consoles are processed by libxl with the rest of the
devices by calling libxl__initiate_device_remove that waits for the
device to reach state 6 before procceeding with the removal.
When libxl is destroying the console devices, Qemu is already dead or
dying, and xenconsoled completely ignores the state backend entry for
console devices, since it performs the cleanup based on the result of
reads/writes to the tty.
Since we don't want to execute hotplug scripts for consoles, leave the
behaviour as it was previously, and just nuke the backend/frontend
xenstore entries by calling libxl__device_destroy.
Report: http://markmail.org/message/yqgppcsdip6tnmh6
Reported-by: Ian Campbell <ian.campbell@eu.citrix.com>
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This functionality is a bit of a mess and several configurations are
not properly supported.
The protocol for changing is basically to change the params node in
the disk xenstore backend. There is no interlock or error reporting in
this protocol. Completely removing the device and recreating it is not
necessary nor expected. For reference the equivalent xend code is
tools/python/xen/xend/server/blkif.py::BlkifController::reconfigureDevice().
Device model stub domains are not supported. There appears to be no
way correctly to do a media change on the emulated device while also
changing the stub domains PV backend to point to the new
backend. Reworking this is a significant task deferred until 4.3. xend
(via the equivalent "xm block-configure" functionality) also does not
support media change for stub domains (confirmed by code inspection
and experiment). Unlike xend this version errors out instead of
silently not achieving anything in this case.
There is no support for qemu-xen (upstream) media change. I expect
this is supported on the qemu side and required QMP plumbing on the
libxl side. Again this is deferred until 4.3.
On the plus side the current implementation is trivially "asynchronous".
Adds a libxl__xs_writev_atonce helper to write a key-value list to
xenstore in one go.
Tested with Windows 7.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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In such a way that only the cpus belonging to the cpupool of the
domain being placed are considered for the placement itself.
This happens by filtering out all the nodes in which the cpupool
has not any cpu from the placement candidates. After that ---as
cpu pooling not necessarily happens at NUMA nodes boundaries--- we
also make sure only the actual cpus that are part of the pool are
considered when counting how much processors a placement candidate
provides.
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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If a domain does not have a VCPU affinity, try to pin it automatically
to some PCPUs. This is done taking into account the NUMA characteristics
of the host. In fact, we look for a combination of host's NUMA nodes
with enough free memory and number of PCPUs for the new domain, and pin
it to the VCPUs of those nodes.
Deciding which placement is the best happens by means of some heuristics.
For instance, smaller candidates are better, both from a domain perspective
(less memory spreading among nodes) and from the entire system perspective
(smaller memory fragmentation). In case of candidates of equal sizes
(i.e., with the same number of nodes), the amount of free memory and
the number of domains' vCPUs already pinned to the candidates' nodes are
both considered. Very often, candidates with greater amount of memory
are the one we wants, as this is good for keeping memory fragmentation
under control. However, we do not want to overcommit some node too much,
just because it has a lot of memory, and that's why the number of vCPUs
must be accounted for.
This all happens internally to libxl, and no API for driving the
mechanism is provided for now. This matches what xend already does.
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: George Dunlap <george.dunlap@eu.citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Tested-by: Andre Przywara <andre.przywara@amd.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Campbell <ian.campbell@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This patch was constructed by grepping for xensource.com over the entire
repository and eyeballing which ones were sensible to update.
In addition, the xen-tools mailing list has been deprecated, so update xentop
to refer to xen-devel instead.
Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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xend accepts `,hdc:cdrom,r' as an empty CDROM drive. However this is
not consistent with the existing xl syntax in
docs/misc/xl-disk-configuration.txt which requires `,,hdc:cdrom,r'
(the additional positional paramter is the format).
We fix this by spotting the case specially: when the target is empty
and the format contains a colon, reinterpret the format as
<vdev>:<devtype>.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Prepare the ground for parsing the xend empty cdrom syntax, by
separating out some non-functional changes as this pre-patch:
* Clarify the disk syntax documentation wording to refer to deprecated
syntaxes too.
* Make DPC in libxlu_disk_l.l useable in the helper functions as well
as in lexer rules, by providing two definitions, each in force in
the appropriate parts of the file.
* Break the <vdev>[:<devtype>] parsing out into a helper function,
`vdev_and_devtype'.
No functional change.
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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The important change here is to xlu_disk_parse to correctly set format == EMPTY
for CDROM devices which are empty. Test cases are added which check for
correctness here.
xend accepts ',hdc:cdrom,r'[0] as an empty CDROM drive however this is not
consistent with the xl syntax in docs/misc/xl-disk-configuration.txt which
requires ',,hdc:cdrom,r' (the additional positional paramter is the format).
I'm not sure if/how this can be fixed. Note that xend does not accept
',,hdc:cdrom,r'
There are several incidental cleanups included the the cdrom-{insert,eject}
commands:
- add a dry-run mode
- use the non-deprecated disk specification syntax
- check for and report errors from libxl_cdrom_insert
[0] http://wiki.xen.org/wiki/CD_Rom_Support_in_Xen
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Set the type of the nics used in sutbdoms to PV unconditianlly, or the
call to setdefaults later is going to fail.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Campbell <ian.campbell@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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xl was calling libxl_device_disk_destroy after a successful call to
libxl_device_disk_remove, which leads to an error.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Since the hotplug script that was in charge of cleaning the backend is
no longer launched, we need to clean the backend by ourselves, so use
libxl__xs_path_cleanup instead of xs_rm.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This change will avoid the confusion caused by the fact that IOEMU
means both PV and TAP network interfaces.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This change renames functions and struct values that used to contain
vifs in their names to nics, that provides a more clear name to
define network interfaces without referring to the backend that is
behind them.
This is not a functional change.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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On error it returns -1 and therefore it needs to return int and not
libxl_device_model_enum. Otherwise gcc 4.6.2 complains:
libxl.c: In function ‘libxl_domain_suspend’:
libxl.c:778:9: error: case value ‘4294967295’ not in enumerated type ‘libxl_device_model_version’ [-Werror=switch]
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Which was introduced in 7b0dc7f3ddfe. This is because the NUMA
placement heuristic does not need FP arith anymore.
As usual when changing configure.ac, remember to rerun autoconf
after applying this change.
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Implements sched_arinc653_domain_set to match the existing API. Currently,
there is no domain-specific configuration when using the ARINC 653 scheduler,
so we simply return success.
Signed-off-by: Andrew Kane <Andrew.Kane@dornerworks.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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They are rather incomplete and have no users or maintainer. Many of the
functions which do exsit raise a NotImplemented exception. Disable them so that
users of the 4.2 release aren't confused into trying to use them.
This only does the minimal to disable them and makes it easy to locally
reenable if anyone wants to hack these into shape in the future.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Tools.mk should be included first, or PREFIX is not honoured in the
other conf/ files that define the paths of several tools.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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libxl__domain_suspend_common_switch_qemu_logdirty would leak t if
there was an error. Fix this.
Also, document the intended usage for libxl__xs_transaction_* in the
doc comment in libxl_internal.h.
Reported-by: Ian Campbell <Ian.Campbell@citrix.com>
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This comes from an old Debian bug report
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=588477 which refers to
http://lists.xen.org/archives/html/xen-users/2010-06/msg00420.html.
Although we no longer have a trap in _claim_lock as described (this was removed
in 25590:bb250383a4f5 "hotplug/Linux: use flock based locking") and the use of
network-* scripts is discouraged (in favour of using distro provided
mechanisms) the general principal that relying on the semantics of /bin/sh's &&
is unwise seems sound.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This is from an old Debian bug at
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=437127
I'm slightly inferring what the configuration which trigger this issue is, the
bug report says:
This code however fails if no slash is present in the address, which is the
case in my configuration:
$ ip addr show dev eth0
2: eth0: <BROADCAST,MULTICAST,UP,10000> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:16:17:90:b4:35 brd ff:ff:ff:ff:ff:ff
inet 88.198.12.XXX peer 88.198.12.XXX/32 brd 88.255.255.255 scope global eth0
I hope either Marc or Stefan can correct me if I have surmised wrongly what
this configuration represents.
This function is used in the vif-route configuration.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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libxl/qemu-upstream currently do not collude together to enable log-dirty mode
and therefore migrations are unsafe. Refuse to even try for now.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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The following patch will fix the bug 1825. http://bugzilla.xen.org/bugzilla/show_bug.cgi?id=1825
When using memcpy to update vcpu_online, the high bits of vcpu_online
may unmodified if the size of avail_vcpus less than vcpu_online. So we
need to clear it before the memory copying.
Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Acked-by: Ian Campbell <ian.campbelL@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Currently the same libxl_device_nic is used to create both the HVM domain and
its stub domain's NICs. This means that if a vifname is provided both the HVM
domains PV NIC and the stub domains PV NIC will get the same name and the
DM's NIC will fail to be attached.
Instead launder the libxl_device_nic to add the TAP_DEVICE_SUFFIX ("-emu").
This is a bit of a misnomer, since the device is actually PV, but it is used to
"back" the emulated device in the stub domain and this naming scheme is
consistent with the non-stub case and is known to work e.g. with our hotplug
scripts.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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The previous patch (25331:dfe39bd65137) only touched the definition of the
variables used to refer to the paths to the tools but didn't remove the actual
checks.
Run autogen after applying this patch.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
[ ijc -- added a comment about "build" vs "host" terminology and a note about
the previous attempt to the changelog, reintroduce AC_CANONICAL_HOST
which was remove by 25303:078c7d4cde1d after this patch was posted but
is required for $host_cpu ]
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This change only removed the variables used to supply the path to the tool but
didn't remove the checks. Will be fixed properly in a subsequent patch.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This is based on a patch from Hans van Kranenburg in
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=658305. Quoting that bug
report:
When configurating a duplicate custom vifname for interfaces in the Xen
dom0 that are added to a bridge (which is obviously a configuration error),
the hotplug scripts fail silently to rename the new vifX.0 to
the custom vifname, if it's already existing.
The result of this, is that the domU will start normally, but no network
traffic between domU and the dom0 bridge is possible, because the vifX.0
never gets added to the bridge.
Worse... when doing xm shutdown on the newly created domU, while
investigating the issue, the interface of another running domU gets shut
down, and remains hanging around in a DOWN state, because it cannot be
removed (the other unrelated domU is still running, but succesfully made
unavailable on the network!).
When starting the new domU again, the interface of the other domU will
be added to the bridge again, and while looking at the output of brctl
show, tcpdump and ping, which make no sense, because everything will
seem to be right, nagios will notify you of another host being down. :|
Note that libxl doesn't actually check the hotplug status yet, this changes
with Rogers hotplug script changes. xend correctly picks the failure up.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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On NetBSD a block device can only be opened once, so make sure pygrub
closes it every time, if this is not done libfsimage is not able to
open the disk later.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Christoph Egger <Christoph.Egger@amd.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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NetBSD doesn't have a gntdev, but we should not print an error when
falling back to the previous implementation.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Otherwise after a localhost migrate of an HVM domain with a stubdomain we end
up with domains called "FOO" and "FOO--incoming-dm". This because we initially
create the domains as "FOO--incoming" and then rename to "FOO" inorder to
maintain the uniqueness of domain names on a host.
In this state a second attempt to migrate will fail upon attempting to create
a new domain named "FOO--incoming-dm"
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Move bootloader and related data after all the device stuff, since
libxl__bootloader_state will depend on libxl__ao_device (to perform
the local attach of a device).
This is pure code motion.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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This change introduces some new structures, and breaks the mutual
dependency that libxl_domain_destroy and libxl__destroy_device_model
had. This is done by checking if the domid passed to
libxl_domain_destroy has a stubdom, and then having the bulk of the
destroy machinery in a separate function (libxl__destroy_domid) that
doesn't check for stubdom presence, since we check for it in the upper
level function. The reason behind this change is the need to use
structures for ao operations, and it was impossible to have two
different self-referencing structs.
All uses of libxl_domain_destroy have been changed, and either
replaced by the new libxl_domain_destroy ao function or by the
internal libxl__domain_destroy that can be used inside an already
running ao.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Move prototypes regarding device model creation, since they will
depend on domain destruction in future patches.
This patch is pure code motion.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Introduce a new structure to track state of device backends, that will
be used in following patches on this series.
This structure if used for both device creation and device
destruction and removes libxl__ao_device_remove.
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Check backend state before unconditionally setting it to "closing"
(5), since it might already be in "closed" (6).
Signed-off-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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These fields are canonicalised by the guest on suspend and therefore must be
valid pfns during restore.
Reported-by: Jonathan Ludlam <Jonathan.Ludlam@eu.citrix.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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Reported-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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If the bootloader failed, we would call the creation failure callback
but _also_ blunder on trying to recreate the domain, due to a missing
"return".
Signed-off-by: Ian Jackson <ian.jackson@eu.citrix.com>
Reported-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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As well as explicitly add -lm to libxl's Makefile.
This is because next patch uses floating point arithmetic, and
it is better to state it clearly that we need libmath (just in
case we find a libc that wants that to be explicitly enforced).
Notice that autoconf should be rerun after applying this change.
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Roger Pau Monne <roger.pau@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
[ ijc -- s/libmath/libm/ in error message ]
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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To allow for allocating a node specific libxl_bitmap (as it
is for cpu number and maps). Helper unctions to convert a node
map it its coresponding cpu map and vice versa are also
implemented.
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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By adding copying and *_is_full/*_is_empty facilities.
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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And leave to the caller the burden of knowing and remembering what kind
of bitmap each instance of libxl_bitmap is.
This is basically just some s/libxl_cpumap/libxl_bitmap/ (and some other
related interface name substitution, e.g., libxl_for_each_cpu) in a bunch
of files, with no real functional change involved.
A specific allocation helper is introduced, besides libxl_bitmap_alloc().
It is called libxl_cpu_bitmap_alloc() and is meant at substituting the old
libxl_cpumap_alloc(). It is just something easier to use in cases where one
wants to allocate a libxl_bitmap that is going to serve as a cpu map.
This is because we want to be able to deal with both cpu and NUMA node
maps, but we don't want to duplicate all the various helpers and wrappers.
While at it, add the usual initialization function, common to all libxl
data structures.
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.eu.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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So that the user knows how much memory there is on each node and
how far they are from each others.
Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
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