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

262 (3164B)

      1#!/usr/bin/env python3
      2# group: rw quick migration
      3#
      4# Copyright (C) 2019 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# Test migration with filter drivers present. Keep everything in an
     22# iothread just for fun.
     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('mig_fifo') as fifo, \
     32     iotests.VM(path_suffix='a') as vm_a, \
     33     iotests.VM(path_suffix='b') as vm_b:
     34
     35    def add_opts(vm):
     36        vm.add_object('iothread,id=iothread0')
     37        vm.add_object('throttle-group,id=tg0,x-bps-total=65536')
     38        vm.add_blockdev('file,filename=%s,node-name=drive0-file' % (img_path))
     39        vm.add_blockdev('%s,file=drive0-file,node-name=drive0-fmt' % (iotests.imgfmt))
     40        vm.add_blockdev('copy-on-read,file=drive0-fmt,node-name=drive0-cor')
     41        vm.add_blockdev('throttle,file=drive0-cor,node-name=drive0-throttle,throttle-group=tg0')
     42        vm.add_blockdev('blkdebug,image=drive0-throttle,node-name=drive0-dbg')
     43        vm.add_blockdev('null-co,node-name=null,read-zeroes=on')
     44        vm.add_blockdev('blkverify,test=drive0-dbg,raw=null,node-name=drive0-verify')
     45
     46        if iotests.supports_quorum():
     47            vm.add_blockdev('quorum,children.0=drive0-verify,vote-threshold=1,node-name=drive0-quorum')
     48            root = "drive0-quorum"
     49        else:
     50            root = "drive0-verify"
     51
     52        vm.add_device('virtio-blk,drive=%s,iothread=iothread0' % root)
     53
     54    iotests.qemu_img_pipe('create', '-f', iotests.imgfmt, img_path, '64M')
     55
     56    os.mkfifo(fifo)
     57
     58    iotests.log('Launching destination VM...')
     59    add_opts(vm_b)
     60    vm_b.add_incoming("exec: cat '%s'" % (fifo))
     61    vm_b.launch()
     62
     63    vm_b.enable_migration_events('B')
     64
     65    iotests.log('Launching source VM...')
     66    add_opts(vm_a)
     67    vm_a.launch()
     68
     69    vm_a.enable_migration_events('A')
     70
     71    iotests.log('Starting migration to B...')
     72    iotests.log(vm_a.qmp('migrate', uri='exec:cat >%s' % (fifo)))
     73    with iotests.Timeout(3, 'Migration does not complete'):
     74        # Wait for the source first (which includes setup=setup)
     75        vm_a.wait_migration('postmigrate')
     76        # Wait for the destination second (which does not)
     77        vm_b.wait_migration('running')
     78
     79    iotests.log(vm_a.qmp('query-migrate')['return']['status'])
     80    iotests.log(vm_b.qmp('query-migrate')['return']['status'])
     81
     82    iotests.log(vm_a.qmp('query-status'))
     83    iotests.log(vm_b.qmp('query-status'))