| 1 | #!/usr/bin/env python3 |
| 2 | # group: rw quick |
| 3 | # |
| 4 | # Test persistent bitmap resizing. |
| 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 | |
| 23 | import iotests |
| 24 | from iotests import log |
| 25 | |
| 26 | iotests.script_initialize(supported_fmts=['qcow2'], |
| 27 | unsupported_imgopts=['compat'], |
| 28 | require_hmp=True) |
| 29 | size = 64 * 1024 * 1024 * 1024 |
| 30 | gran_small = 32 * 1024 |
| 31 | gran_large = 128 * 1024 |
| 32 | |
| 33 | def query_bitmaps(vm): |
| 34 | res = vm.qmp("query-block") |
| 35 | return { "bitmaps": { device['device']: device.get('inserted', {}) |
| 36 | .get('dirty-bitmaps', []) for |
| 37 | device in res['return'] } } |
| 38 | |
| 39 | with iotests.FilePath('img') as img_path, \ |
| 40 | iotests.VM() as vm: |
| 41 | |
| 42 | log('--- Preparing image & VM ---\n') |
| 43 | iotests.qemu_img_create('-f', iotests.imgfmt, img_path, str(size)) |
| 44 | vm.add_drive(img_path) |
| 45 | |
| 46 | |
| 47 | log('--- 1st Boot (Establish Baseline Image) ---\n') |
| 48 | vm.launch() |
| 49 | |
| 50 | log('\n--- Adding bitmaps Small, Medium, Large, and Transient ---\n') |
| 51 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| 52 | name="Small", granularity=gran_small, persistent=True) |
| 53 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| 54 | name="Medium", persistent=True) |
| 55 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| 56 | name="Large", granularity=gran_large, persistent=True) |
| 57 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| 58 | name="Transient", persistent=False) |
| 59 | |
| 60 | log('--- Forcing flush of bitmaps to disk ---\n') |
| 61 | log(query_bitmaps(vm), indent=2) |
| 62 | vm.shutdown() |
| 63 | |
| 64 | |
| 65 | log('--- 2nd Boot (Grow Image) ---\n') |
| 66 | vm.launch() |
| 67 | log(query_bitmaps(vm), indent=2) |
| 68 | |
| 69 | log('--- Adding new bitmap, growing image, and adding 2nd new bitmap ---') |
| 70 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| 71 | name="New", persistent=True) |
| 72 | vm.qmp_log("human-monitor-command", |
| 73 | command_line="block_resize drive0 70G") |
| 74 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| 75 | name="Newtwo", persistent=True) |
| 76 | log(query_bitmaps(vm), indent=2) |
| 77 | |
| 78 | log('--- Forcing flush of bitmaps to disk ---\n') |
| 79 | vm.shutdown() |
| 80 | |
| 81 | |
| 82 | log('--- 3rd Boot (Shrink Image) ---\n') |
| 83 | vm.launch() |
| 84 | log(query_bitmaps(vm), indent=2) |
| 85 | |
| 86 | log('--- Adding "NewB" bitmap, removing "New" bitmap ---') |
| 87 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| 88 | name="NewB", persistent=True) |
| 89 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", |
| 90 | name="New") |
| 91 | |
| 92 | log('--- Truncating image ---\n') |
| 93 | vm.qmp_log("human-monitor-command", |
| 94 | command_line="block_resize drive0 50G") |
| 95 | |
| 96 | log('--- Adding "NewC" bitmap, removing "NewTwo" bitmap ---') |
| 97 | vm.qmp_log("block-dirty-bitmap-add", node="drive0", |
| 98 | name="NewC", persistent=True) |
| 99 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Newtwo") |
| 100 | |
| 101 | log('--- Forcing flush of bitmaps to disk ---\n') |
| 102 | vm.shutdown() |
| 103 | |
| 104 | |
| 105 | log('--- 4th Boot (Verification and Cleanup) ---\n') |
| 106 | vm.launch() |
| 107 | log(query_bitmaps(vm), indent=2) |
| 108 | |
| 109 | log('--- Removing all Bitmaps ---\n') |
| 110 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Small") |
| 111 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Medium") |
| 112 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Large") |
| 113 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="NewB") |
| 114 | vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="NewC") |
| 115 | log(query_bitmaps(vm), indent=2) |
| 116 | |
| 117 | log('\n--- Done ---') |
| 118 | vm.shutdown() |