cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
Log | Files | Refs | Submodules | LICENSE | sfeed.txt

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      1#!/usr/bin/env python3
      2# group: quick migration
      3#
      4# Copyright (C) 2018 Red Hat, Inc.
      5#
      6# This program is free software; you can redistribute it and/or modify
      7# it under the terms of the GNU General Public License as published by
      8# the Free Software Foundation; either version 2 of the License, or
      9# (at your option) any later version.
     10#
     11# This program is distributed in the hope that it will be useful,
     12# but WITHOUT ANY WARRANTY; without even the implied warranty of
     13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     14# GNU General Public License for more details.
     15#
     16# You should have received a copy of the GNU General Public License
     17# along with this program.  If not, see <http://www.gnu.org/licenses/>.
     18#
     19# Creator/Owner: Kevin Wolf <kwolf@redhat.com>
     20#
     21# Check that block node activation and inactivation works with a block graph
     22# that is built with individually created nodes
     23
     24import iotests
     25import os
     26
     27iotests.script_initialize(supported_fmts=['qcow2'],
     28                          supported_platforms=['linux'])
     29
     30with iotests.FilePath('img') as img_path, \
     31     iotests.FilePath('backing') as backing_path, \
     32     iotests.FilePath('mig_fifo_a') as fifo_a, \
     33     iotests.FilePath('mig_fifo_b') as fifo_b, \
     34     iotests.VM(path_suffix='a') as vm_a, \
     35     iotests.VM(path_suffix='b') as vm_b:
     36
     37    iotests.qemu_img_pipe('create', '-f', iotests.imgfmt, backing_path, '64M')
     38    iotests.qemu_img_pipe('create', '-f', iotests.imgfmt, img_path, '64M')
     39
     40    os.mkfifo(fifo_a)
     41    os.mkfifo(fifo_b)
     42
     43    iotests.log('Launching source VM...')
     44    (vm_a.add_blockdev('file,filename=%s,node-name=drive0-file' % (img_path))
     45         .add_blockdev('%s,file=drive0-file,node-name=drive0' % (iotests.imgfmt))
     46         .add_blockdev('file,filename=%s,node-name=drive0-backing-file' % (backing_path))
     47         .add_blockdev('%s,file=drive0-backing-file,node-name=drive0-backing' % (iotests.imgfmt))
     48         .launch())
     49
     50    vm_a.enable_migration_events('A')
     51
     52    iotests.log('Launching destination VM...')
     53    (vm_b.add_blockdev('file,filename=%s,node-name=drive0-file' % (img_path))
     54         .add_blockdev('%s,file=drive0-file,node-name=drive0' % (iotests.imgfmt))
     55         .add_blockdev('file,filename=%s,node-name=drive0-backing-file' % (backing_path))
     56         .add_blockdev('%s,file=drive0-backing-file,node-name=drive0-backing' % (iotests.imgfmt))
     57         .add_incoming("exec: cat '%s'" % (fifo_a))
     58         .launch())
     59
     60    vm_b.enable_migration_events('B')
     61
     62    # Add a child node that was created after the parent node. The reverse case
     63    # is covered by the -blockdev options above.
     64    iotests.log(vm_a.qmp('blockdev-snapshot', node='drive0-backing',
     65                         overlay='drive0'))
     66    iotests.log(vm_b.qmp('blockdev-snapshot', node='drive0-backing',
     67                         overlay='drive0'))
     68
     69    iotests.log('Starting migration to B...')
     70    iotests.log(vm_a.qmp('migrate', uri='exec:cat >%s' % (fifo_a)))
     71    with iotests.Timeout(3, 'Migration does not complete'):
     72        # Wait for the source first (which includes setup=setup)
     73        vm_a.wait_migration('postmigrate')
     74        # Wait for the destination second (which does not)
     75        vm_b.wait_migration('running')
     76
     77    iotests.log(vm_a.qmp('query-migrate')['return']['status'])
     78    iotests.log(vm_b.qmp('query-migrate')['return']['status'])
     79
     80    iotests.log(vm_a.qmp('query-status'))
     81    iotests.log(vm_b.qmp('query-status'))
     82
     83    iotests.log('Add a second parent to drive0-file...')
     84    iotests.log(vm_b.qmp('blockdev-add', driver='raw', file='drive0-file',
     85                         node_name='drive0-raw'))
     86
     87    iotests.log('Restart A with -incoming and second parent...')
     88    vm_a.shutdown()
     89    (vm_a.add_blockdev('raw,file=drive0-file,node-name=drive0-raw')
     90         .add_incoming("exec: cat '%s'" % (fifo_b))
     91         .launch())
     92
     93    vm_a.enable_migration_events('A')
     94
     95    iotests.log(vm_a.qmp('blockdev-snapshot', node='drive0-backing',
     96                         overlay='drive0'))
     97
     98    iotests.log('Starting migration back to A...')
     99    iotests.log(vm_b.qmp('migrate', uri='exec:cat >%s' % (fifo_b)))
    100    with iotests.Timeout(3, 'Migration does not complete'):
    101        # Wait for the source first (which includes setup=setup)
    102        vm_b.wait_migration('postmigrate')
    103        # Wait for the destination second (which does not)
    104        vm_a.wait_migration('running')
    105
    106    iotests.log(vm_a.qmp('query-migrate')['return']['status'])
    107    iotests.log(vm_b.qmp('query-migrate')['return']['status'])
    108
    109    iotests.log(vm_a.qmp('query-status'))
    110    iotests.log(vm_b.qmp('query-status'))