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

256 (4822B)

      1#!/usr/bin/env python3
      2# group: rw auto quick
      3#
      4# Test incremental/backup across iothread contexts
      5#
      6# Copyright (c) 2019 John Snow for Red Hat, Inc.
      7#
      8# This program is free software; you can redistribute it and/or modify
      9# it under the terms of the GNU General Public License as published by
     10# the Free Software Foundation; either version 2 of the License, or
     11# (at your option) any later version.
     12#
     13# This program is distributed in the hope that it will be useful,
     14# but WITHOUT ANY WARRANTY; without even the implied warranty of
     15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16# GNU General Public License for more details.
     17#
     18# You should have received a copy of the GNU General Public License
     19# along with this program.  If not, see <http://www.gnu.org/licenses/>.
     20#
     21# owner=jsnow@redhat.com
     22
     23import os
     24import iotests
     25from iotests import log
     26
     27iotests._verify_virtio_scsi_pci_or_ccw()
     28
     29iotests.script_initialize(supported_fmts=['qcow2'])
     30size = 64 * 1024 * 1024
     31
     32with iotests.FilePath('img0') as img0_path, \
     33     iotests.FilePath('img1') as img1_path, \
     34     iotests.FilePath('img0-full') as img0_full_path, \
     35     iotests.FilePath('img1-full') as img1_full_path, \
     36     iotests.FilePath('img0-incr') as img0_incr_path, \
     37     iotests.FilePath('img1-incr') as img1_incr_path, \
     38     iotests.VM() as vm:
     39
     40    def create_target(filepath, name, size):
     41        basename = os.path.basename(filepath)
     42        nodename = "file_{}".format(basename)
     43        log(vm.command('blockdev-create', job_id='job1',
     44                       options={
     45                           'driver': 'file',
     46                           'filename': filepath,
     47                           'size': 0,
     48                       }))
     49        vm.run_job('job1')
     50        log(vm.command('blockdev-add', driver='file',
     51                       node_name=nodename, filename=filepath))
     52        log(vm.command('blockdev-create', job_id='job2',
     53                       options={
     54                           'driver': iotests.imgfmt,
     55                           'file': nodename,
     56                           'size': size,
     57                       }))
     58        vm.run_job('job2')
     59        log(vm.command('blockdev-add', driver=iotests.imgfmt,
     60                       node_name=name,
     61                       file=nodename))
     62
     63    log('--- Preparing images & VM ---\n')
     64    vm.add_object('iothread,id=iothread0')
     65    vm.add_object('iothread,id=iothread1')
     66    vm.add_device('virtio-scsi,id=scsi0,iothread=iothread0')
     67    vm.add_device('virtio-scsi,id=scsi1,iothread=iothread1')
     68    iotests.qemu_img_create('-f', iotests.imgfmt, img0_path, str(size))
     69    iotests.qemu_img_create('-f', iotests.imgfmt, img1_path, str(size))
     70    vm.add_drive(img0_path, interface='none')
     71    vm.add_device('scsi-hd,id=device0,drive=drive0,bus=scsi0.0')
     72    vm.add_drive(img1_path, interface='none')
     73    vm.add_device('scsi-hd,id=device1,drive=drive1,bus=scsi1.0')
     74
     75    log('--- Starting VM ---\n')
     76    vm.launch()
     77
     78    log('--- Create Targets & Full Backups ---\n')
     79    create_target(img0_full_path, 'img0-full', size)
     80    create_target(img1_full_path, 'img1-full', size)
     81    ret = vm.qmp_log('transaction', indent=2, actions=[
     82        { 'type': 'block-dirty-bitmap-add',
     83          'data': { 'node': 'drive0', 'name': 'bitmap0' }},
     84        { 'type': 'block-dirty-bitmap-add',
     85          'data': { 'node': 'drive1', 'name': 'bitmap1' }},
     86        { 'type': 'blockdev-backup',
     87          'data': { 'device': 'drive0',
     88                    'target': 'img0-full',
     89                    'sync': 'full',
     90                    'job-id': 'j0' }},
     91        { 'type': 'blockdev-backup',
     92          'data': { 'device': 'drive1',
     93                    'target': 'img1-full',
     94                    'sync': 'full',
     95                    'job-id': 'j1' }}
     96    ])
     97    if "error" in ret:
     98        raise Exception(ret['error']['desc'])
     99    vm.run_job('j0', auto_dismiss=True)
    100    vm.run_job('j1', auto_dismiss=True)
    101
    102    log('\n--- Create Targets & Incremental Backups ---\n')
    103    create_target(img0_incr_path, 'img0-incr', size)
    104    create_target(img1_incr_path, 'img1-incr', size)
    105    ret = vm.qmp_log('transaction', indent=2, actions=[
    106        { 'type': 'blockdev-backup',
    107          'data': { 'device': 'drive0',
    108                    'target': 'img0-incr',
    109                    'sync': 'incremental',
    110                    'bitmap': 'bitmap0',
    111                    'job-id': 'j2' }},
    112        { 'type': 'blockdev-backup',
    113          'data': { 'device': 'drive1',
    114                    'target': 'img1-incr',
    115                    'sync': 'incremental',
    116                    'bitmap': 'bitmap1',
    117                    'job-id': 'j3' }}
    118    ])
    119    if "error" in ret:
    120        raise Exception(ret['error']['desc'])
    121    vm.run_job('j2', auto_dismiss=True)
    122    vm.run_job('j3', auto_dismiss=True)
    123
    124    log('\n--- Done ---')
    125    vm.shutdown()