jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
tests/qemu-iotests: add bitmap resize test 246
Test that we can actually resize qcow2 images with persistent bitmaps
correctly. Throw some other goofy stuff at the test while we're at it,
like adding bitmaps of different granularities and at different times.
Signed-off-by: John Snow <jsnow@redhat.com>
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Tested-by: Eric Blake <eblake@redhat.com>
Message-id: 20190311185147.52309-5-vsementsov@virtuozzo.com
[vsmentsov: drop \n from the end of test output,
test output changed a bit: some bitmaps goes in other order
int the output]
Signed-off-by: John Snow <jsnow@redhat.com>
+410
+114
tests/qemu-iotests/246
+114
tests/qemu-iotests/246
···
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#!/usr/bin/env python
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#
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# Test persistent bitmap resizing.
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#
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# Copyright (c) 2019 John Snow for Red Hat, Inc.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# owner=jsnow@redhat.com
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import iotests
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from iotests import log
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iotests.verify_image_format(supported_fmts=['qcow2'])
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size = 64 * 1024 * 1024 * 1024
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gran_small = 32 * 1024
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gran_large = 128 * 1024
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def query_bitmaps(vm):
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res = vm.qmp("query-block")
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return { "bitmaps": { device['device']: device.get('dirty-bitmaps', []) for
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device in res['return'] } }
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with iotests.FilePath('img') as img_path, \
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iotests.VM() as vm:
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log('--- Preparing image & VM ---\n')
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iotests.qemu_img_create('-f', iotests.imgfmt, img_path, str(size))
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vm.add_drive(img_path)
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log('--- 1st Boot (Establish Baseline Image) ---\n')
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vm.launch()
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log('\n--- Adding bitmaps Small, Medium, Large, and Transient ---\n')
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vm.qmp_log("block-dirty-bitmap-add", node="drive0",
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name="Small", granularity=gran_small, persistent=True)
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vm.qmp_log("block-dirty-bitmap-add", node="drive0",
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name="Medium", persistent=True)
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vm.qmp_log("block-dirty-bitmap-add", node="drive0",
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name="Large", granularity=gran_large, persistent=True)
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vm.qmp_log("block-dirty-bitmap-add", node="drive0",
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name="Transient", persistent=False)
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log('--- Forcing flush of bitmaps to disk ---\n')
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log(query_bitmaps(vm), indent=2)
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vm.shutdown()
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log('--- 2nd Boot (Grow Image) ---\n')
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vm.launch()
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log(query_bitmaps(vm), indent=2)
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log('--- Adding new bitmap, growing image, and adding 2nd new bitmap ---')
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vm.qmp_log("block-dirty-bitmap-add", node="drive0",
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name="New", persistent=True)
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vm.qmp_log("human-monitor-command",
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command_line="block_resize drive0 70G")
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vm.qmp_log("block-dirty-bitmap-add", node="drive0",
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name="Newtwo", persistent=True)
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log(query_bitmaps(vm), indent=2)
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log('--- Forcing flush of bitmaps to disk ---\n')
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vm.shutdown()
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log('--- 3rd Boot (Shrink Image) ---\n')
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vm.launch()
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log(query_bitmaps(vm), indent=2)
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log('--- Adding "NewB" bitmap, removing "New" bitmap ---')
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vm.qmp_log("block-dirty-bitmap-add", node="drive0",
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name="NewB", persistent=True)
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vm.qmp_log("block-dirty-bitmap-remove", node="drive0",
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name="New")
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log('--- Truncating image ---\n')
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vm.qmp_log("human-monitor-command",
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command_line="block_resize drive0 50G")
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log('--- Adding "NewC" bitmap, removing "NewTwo" bitmap ---')
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vm.qmp_log("block-dirty-bitmap-add", node="drive0",
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name="NewC", persistent=True)
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vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Newtwo")
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log('--- Forcing flush of bitmaps to disk ---\n')
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vm.shutdown()
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log('--- 4th Boot (Verification and Cleanup) ---\n')
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vm.launch()
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log(query_bitmaps(vm), indent=2)
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log('--- Removing all Bitmaps ---\n')
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vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Small")
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vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Medium")
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vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="Large")
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vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="NewB")
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vm.qmp_log("block-dirty-bitmap-remove", node="drive0", name="NewC")
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log(query_bitmaps(vm), indent=2)
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log('\n--- Done ---')
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vm.shutdown()
+295
tests/qemu-iotests/246.out
+295
tests/qemu-iotests/246.out
···
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--- Preparing image & VM ---
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--- 1st Boot (Establish Baseline Image) ---
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--- Adding bitmaps Small, Medium, Large, and Transient ---
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{"execute": "block-dirty-bitmap-add", "arguments": {"granularity": 32768, "name": "Small", "node": "drive0", "persistent": true}}
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{"return": {}}
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{"execute": "block-dirty-bitmap-add", "arguments": {"name": "Medium", "node": "drive0", "persistent": true}}
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{"return": {}}
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{"execute": "block-dirty-bitmap-add", "arguments": {"granularity": 131072, "name": "Large", "node": "drive0", "persistent": true}}
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{"return": {}}
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{"execute": "block-dirty-bitmap-add", "arguments": {"name": "Transient", "node": "drive0", "persistent": false}}
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{"return": {}}
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--- Forcing flush of bitmaps to disk ---
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{
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"bitmaps": {
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"drive0": [
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "Transient",
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"persistent": false,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 131072,
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"name": "Large",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "Medium",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 32768,
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"name": "Small",
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"persistent": true,
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"recording": true,
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"status": "active"
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}
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]
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}
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}
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--- 2nd Boot (Grow Image) ---
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{
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"bitmaps": {
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"drive0": [
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{
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"busy": false,
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"count": 0,
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"granularity": 32768,
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"name": "Small",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "Medium",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 131072,
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"name": "Large",
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"persistent": true,
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"recording": true,
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"status": "active"
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}
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]
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}
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}
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--- Adding new bitmap, growing image, and adding 2nd new bitmap ---
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{"execute": "block-dirty-bitmap-add", "arguments": {"name": "New", "node": "drive0", "persistent": true}}
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{"return": {}}
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{"execute": "human-monitor-command", "arguments": {"command-line": "block_resize drive0 70G"}}
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{"return": ""}
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{"execute": "block-dirty-bitmap-add", "arguments": {"name": "Newtwo", "node": "drive0", "persistent": true}}
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{"return": {}}
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{
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"bitmaps": {
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"drive0": [
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "Newtwo",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "New",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 32768,
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"name": "Small",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "Medium",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 131072,
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"name": "Large",
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"persistent": true,
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"recording": true,
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"status": "active"
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}
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]
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}
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}
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--- Forcing flush of bitmaps to disk ---
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--- 3rd Boot (Shrink Image) ---
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{
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"bitmaps": {
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"drive0": [
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "New",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "Newtwo",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 32768,
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"name": "Small",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "Medium",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 131072,
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"name": "Large",
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"persistent": true,
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"recording": true,
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"status": "active"
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}
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]
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}
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}
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--- Adding "NewB" bitmap, removing "New" bitmap ---
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{"execute": "block-dirty-bitmap-add", "arguments": {"name": "NewB", "node": "drive0", "persistent": true}}
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{"return": {}}
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{"execute": "block-dirty-bitmap-remove", "arguments": {"name": "New", "node": "drive0"}}
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{"return": {}}
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--- Truncating image ---
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{"execute": "human-monitor-command", "arguments": {"command-line": "block_resize drive0 50G"}}
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{"return": ""}
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--- Adding "NewC" bitmap, removing "NewTwo" bitmap ---
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{"execute": "block-dirty-bitmap-add", "arguments": {"name": "NewC", "node": "drive0", "persistent": true}}
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{"return": {}}
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{"execute": "block-dirty-bitmap-remove", "arguments": {"name": "Newtwo", "node": "drive0"}}
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{"return": {}}
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--- Forcing flush of bitmaps to disk ---
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--- 4th Boot (Verification and Cleanup) ---
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{
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"bitmaps": {
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"drive0": [
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "NewB",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "NewC",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 32768,
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"name": "Small",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 65536,
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"name": "Medium",
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"persistent": true,
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"recording": true,
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"status": "active"
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},
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{
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"busy": false,
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"count": 0,
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"granularity": 131072,
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"name": "Large",
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"persistent": true,
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"recording": true,
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"status": "active"
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}
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]
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}
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}
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--- Removing all Bitmaps ---
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{"execute": "block-dirty-bitmap-remove", "arguments": {"name": "Small", "node": "drive0"}}
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{"return": {}}
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{"execute": "block-dirty-bitmap-remove", "arguments": {"name": "Medium", "node": "drive0"}}
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{"return": {}}
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{"execute": "block-dirty-bitmap-remove", "arguments": {"name": "Large", "node": "drive0"}}
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{"return": {}}
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{"execute": "block-dirty-bitmap-remove", "arguments": {"name": "NewB", "node": "drive0"}}
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{"return": {}}
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{"execute": "block-dirty-bitmap-remove", "arguments": {"name": "NewC", "node": "drive0"}}
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{"return": {}}
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{
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"bitmaps": {
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"drive0": []
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}
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}
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--- Done ---