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vm: restore code for suspending domains with PCI devices

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This commit is contained in:
Marek Marczykowski-Górecki 2017-06-02 15:51:02 +02:00
parent 4c4f903fe3
commit f80fddf7ae
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GPG Key ID: 063938BA42CFA724
1 changed files with 12 additions and 17 deletions
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29
qubes/vm/qubesvm.py
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@ -977,17 +977,15 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
:raises qubes.exc.QubesVMNotRunnignError: \
when domain is already shut down.
:raises qubes.exc.QubesNotImplemetedError: \
when domain has PCI devices attached.
'''
if not self.is_running() and not self.is_paused():
raise qubes.exc.QubesVMNotRunningError(self)
if list(self.devices['pci'].attached()):
raise qubes.exc.QubesNotImplementedError(
'Cannot suspend domain {!r} which has PCI devices attached'
.format(self.name))
yield from self.run_service_for_stdio('qubes.SuspendPre')
self.libvirt_domain.pMSuspendForDuration(
libvirt.VIR_NODE_SUSPEND_TARGET_MEM, 0, 0)
else:
self.libvirt_domain.suspend()
@ -995,13 +993,12 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
@asyncio.coroutine
def pause(self):
'''Pause (suspend) domain. This currently delegates to \
:py:meth:`suspend`.'''
'''Pause (suspend) domain.'''
if not self.is_running():
raise qubes.exc.QubesVMNotRunningError(self)
self.suspend()
self.libvirt_domain.suspend()
return self
@ -1013,11 +1010,12 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
:raises qubes.exc.QubesVMError: when machine is suspended
'''
# pylint: disable=not-an-iterable
if self.get_power_state() == "Suspended":
raise qubes.exc.QubesVMError(self,
'Cannot resume suspended domain {!r}'.format(self.name))
self.libvirt_domain.pMWakeup()
yield from self.run_service_for_stdio('qubes.SuspendPost')
else:
self.unpause()
yield from self.unpause()
return self
@ -1397,7 +1395,7 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
``'Transient'`` Machine is running, but does not have :program:`guid`
or :program:`qrexec` available.
``'Running'`` Machine is ready and running.
``'Paused'`` Machine is paused (currently not available, see below).
``'Paused'`` Machine is paused.
``'Suspended'`` Machine is S3-suspended.
``'Halting'`` Machine is in process of shutting down.
``'Dying'`` Machine crashed and is unusable.
@ -1407,9 +1405,6 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
is undefined).
=============== ========================================================
``Paused`` state is currently unavailable because of missing code in
libvirt/xen glue.
FIXME: graph below may be incomplete and wrong. Click on method name to
see its documentation.
@ -1459,13 +1454,13 @@ class QubesVM(qubes.vm.mix.net.NetVMMixin, qubes.vm.BaseVM):
[label="pause()" URL="#qubes.vm.qubesvm.QubesVM.pause"
color=gray75 fontcolor=gray75];
Running -> Suspended
[label="pause()" URL="#qubes.vm.qubesvm.QubesVM.pause"
[label="suspend()" URL="#qubes.vm.qubesvm.QubesVM.suspend"
color=gray50 fontcolor=gray50];
Paused -> Running
[label="unpause()" URL="#qubes.vm.qubesvm.QubesVM.unpause"
color=gray75 fontcolor=gray75];
Suspended -> Running
[label="unpause()" URL="#qubes.vm.qubesvm.QubesVM.unpause"
[label="resume()" URL="#qubes.vm.qubesvm.QubesVM.resume"
color=gray50 fontcolor=gray50];
Running -> Suspended