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

202 (3828B)

      1#!/usr/bin/env python3
      2# group: rw quick
      3#
      4# Copyright (C) 2017 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: Stefan Hajnoczi <stefanha@redhat.com>
     20#
     21# Check that QMP 'transaction' blockdev-snapshot-sync with multiple drives on a
     22# single IOThread completes successfully.  This particular command triggered a
     23# hang due to recursive AioContext locking and BDRV_POLL_WHILE().  Protect
     24# against regressions.
     25
     26import iotests
     27
     28iotests.script_initialize(supported_fmts=['qcow2'],
     29                          supported_platforms=['linux'])
     30
     31with iotests.FilePath('disk0.img') as disk0_img_path, \
     32     iotests.FilePath('disk1.img') as disk1_img_path, \
     33     iotests.FilePath('disk0-snap.img') as disk0_snap_img_path, \
     34     iotests.FilePath('disk1-snap.img') as disk1_snap_img_path, \
     35     iotests.VM() as vm:
     36
     37    img_size = '10M'
     38    iotests.qemu_img_pipe('create', '-f', iotests.imgfmt, disk0_img_path, img_size)
     39    iotests.qemu_img_pipe('create', '-f', iotests.imgfmt, disk1_img_path, img_size)
     40
     41    iotests.log('Launching VM...')
     42    vm.launch()
     43
     44    iotests.log('Adding IOThread...')
     45    iotests.log(vm.qmp('object-add',
     46                       qom_type='iothread',
     47                       id='iothread0'))
     48
     49    iotests.log('Adding blockdevs...')
     50    iotests.log(vm.qmp('blockdev-add',
     51                       driver=iotests.imgfmt,
     52                       node_name='disk0',
     53                       file={
     54                           'driver': 'file',
     55                           'filename': disk0_img_path,
     56                       }))
     57    iotests.log(vm.qmp('blockdev-add',
     58                       driver=iotests.imgfmt,
     59                       node_name='disk1',
     60                       file={
     61                           'driver': 'file',
     62                           'filename': disk1_img_path,
     63                       }))
     64
     65    iotests.log('Setting iothread...')
     66    iotests.log(vm.qmp('x-blockdev-set-iothread',
     67                       node_name='disk0',
     68                       iothread='iothread0'))
     69    iotests.log(vm.qmp('x-blockdev-set-iothread',
     70                       node_name='disk1',
     71                       iothread='iothread0'))
     72
     73    iotests.log('Creating external snapshots...')
     74    iotests.log(vm.qmp(
     75                  'transaction',
     76                  actions=[
     77                      {
     78                          'data': {
     79                              'node-name': 'disk0',
     80                              'snapshot-file': disk0_snap_img_path,
     81                              'snapshot-node-name': 'disk0-snap',
     82                              'mode': 'absolute-paths',
     83                              'format': iotests.imgfmt,
     84                          },
     85                          'type': 'blockdev-snapshot-sync'
     86                      }, {
     87                          'data': {
     88                              'node-name': 'disk1',
     89                              'snapshot-file': disk1_snap_img_path,
     90                              'snapshot-node-name': 'disk1-snap',
     91                              'mode': 'absolute-paths',
     92                              'format': iotests.imgfmt
     93                          },
     94                          'type': 'blockdev-snapshot-sync'
     95                      }
     96                  ]))