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* test/lib/perf_report: Fix highlightStefano Brivio2024-07-251-1/+1
| | | | Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test: iperf3 3.16 introduces multiple threads, drop our own implementation ↵Stefano Brivio2024-07-252-23/+10
| | | | | | | | | | | | | | | | | | of that Starting from iperf3 version 3.16, -P / --parallel spawns multiple clients as separate threads, instead of multiple streams serviced by the same thread. So we can drop our lib/test implementation to spawn several iperf3 client and server processes and finally simplify things quite a bit. Adjust number of threads and UDP sending bandwidth to values that seem to be more or less matching previous throughput tests on my setup. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au> Tested-by: David Gibson <david@gibson.dropbear.id.au>
* test: Make handling of shell prompts with escapes a little more reliableDavid Gibson2023-12-071-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | When using the old-style "pane" methods of executing commands during the tests, we need to scan the shell output for prompts in order to tell when commands have finished. This is inherently unreliable because commands could output things that look like prompts, and prompts might not look like we expect them to. The only way to really fix this is to use a better way of dispatching commands, like the newer "context" system. However, it's awkward to convert everything to "context" right at the moment, so we're still relying on some tests that do work most of the time. It is, however, particularly sensitive to fancy coloured prompts using escape sequences. Currently we try to handle this by stripping actual ESC characters with tr, then looking for some common variants. We can do a bit better: instead strip all escape sequences using sed before looking for our prompt. Or, at least, any one using [a-zA-Z] as the terminating character. Strictly speaking ANSI escapes can be terminated by any character in 0x40..0x7e, which isn't easily expressed in a regexp. This should capture all common ones, though. With this transformation we can simplify the list of patterns we then look for as a prompt, removing some redundant variants. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/lib/perf_report: Fix up table highlight for pasta's local flowsStefano Brivio2023-11-101-1/+9
| | | | | | | | | As commit 29269705239f ("test/perf: Small MTUs for spliced TCP aren't interesting") drops all columns for TCP test MTUs except for one, in throughput test for pasta's local flows, the first column we need to highlight in that table is now the second one. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/perf: Start iperf3 server less oftenDavid Gibson2023-11-071-19/+38
| | | | | | | | | | | | | | | | | | | Currently we start both the iperf3 server(s) and client(s) afresh each time we want to make a bandwidth measurement. That's not really necessary as usually a whole batch of bandwidth measurements can use the same server. Split up the iperf3 directive into 3 directives: iperf3s to start the server, iperf3 to make a measurement and iperf3k to kill the server, so that we can start the server less often. This - and more importantly, the reduced number of waits for the server to be ready - reduces runtime of the performance tests on my laptop by about 4m (out of ~28minutes). For now we still restart the server between IPv4 and IPv6 tests. That's because in some cases the latency measurements we make in between use the same ports. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/perf: Get iperf3 stats from client sideDavid Gibson2023-11-071-18/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | iperf3 generates statistics about its run on both the client and server sides. They don't have exactly the same information, but both have the pieces we need (AFAICT the server communicates some nformation to the client over the control socket, so the most important information is in the client side output, even if measured by the server). Currently we use the server side information for our measurements. Using the client side information has several advantages though: * We can directly wait for the client to complete and we know we'll have the output we want. We don't need to sleep to give the server time to write out the results. * That in turn means we can wrap up as soon as the client is done, we don't need to wait overlong to make sure everything is finished. * The slightly different organisation of the data in the client output means that we always want the same json value, rather than requiring slightly different onces for UDP and TCP. The fact that we avoid some extra delays speeds up the overal run of the perf tests by around 7 minutes (out of around 35 minutes) on my laptop. The fact that we no longer unconditionally kill client and server after a certain time means that the client could run indefinitely if the server doesn't respond. We mitigate that by setting 1s connect timeout on the client. This isn't foolproof - if we get an initial response, but then lose connectivity this could still run indefinitely, however it does cover by far the most likely failure cases. --snd-timeout would provide more robustness, but I've hit odd failures when trying to use it. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test: Use "nstool exec" to slightly simplify testsDavid Gibson2023-04-082-25/+22
| | | | | | | | Using this, rather than using "nstool info" to get the pid then manually connecting with nsenter makes things a little simpler. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* nstool: Replace "pid" subcommand with "info" subcommandDavid Gibson2023-04-081-6/+6
| | | | | | | | | The new subcommand gives more information about the holder process and its namespace, and may be further extended in future. Add some options which give the old behaviour for existing scripts. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* nstool: Reverse parameters to nstoolDavid Gibson2023-04-081-14/+14
| | | | | | | | Having the "subcommand" first is more conventional and will make it more natural for future extensions I have planned. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* nstool: Rename nsholder to nstoolDavid Gibson2023-04-081-15/+15
| | | | | | | In preparation for extending what it does. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test: Remove race between commands run in the same contextDavid Gibson2023-04-081-2/+2
| | | | | | | | | | | | | context_run() has a race condition if two commands are run in close proximity (generally involving at least one in the background). Because we always use the same name for the temporary fifo files, if another command is issued while the fifos for the first still exist, mkfifo will fail, typically causing the entire test script to jam. Create unique names for the temporary fifos to avoid this problem. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* passt: Relicense to GPL 2.0, or any later versionStefano Brivio2023-04-0610-10/+10
| | | | | | | | | | | | | | | | | | | In practical terms, passt doesn't benefit from the additional protection offered by the AGPL over the GPL, because it's not suitable to be executed over a computer network. Further, restricting the distribution under the version 3 of the GPL wouldn't provide any practical advantage either, as long as the passt codebase is concerned, and might cause unnecessary compatibility dilemmas. Change licensing terms to the GNU General Public License Version 2, or any later version, with written permission from all current and past contributors, namely: myself, David Gibson, Laine Stump, Andrea Bolognani, Paul Holzinger, Richard W.M. Jones, Chris Kuhn, Florian Weimer, Giuseppe Scrivano, Stefan Hajnoczi, and Vasiliy Ulyanov. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/lib/test: Clean up iperf3 JSON files before starting the serverStefano Brivio2022-11-161-2/+2
| | | | | | | | ...instead of doing it after the test. Now that we have pre-built guest images, we might also have old JSON files from previous, interrupted test runs. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test: Switch to qemu -netdev stream option instead of using qrapStefano Brivio2022-11-041-27/+23
| | | | | | | | | | | qemu commit 13c6be96618c ("net: stream: add unix socket") introduces support for native AF_UNIX support, finally making qrap useless. We can't quite drop that yet until a qemu release includes it, and then we'll need to wait a while for users to switch anyway, but at least for tests, we can use that support. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test: Wait for network before starting passt in two_guests setupStefano Brivio2022-11-041-0/+2
| | | | | | | | | | | | | As pasta now configures that target network namespace with --config-net, we need to wait for addresses and routes to be actually present. Just sending netlink messages doesn't mean this is done synchronously. A more elegant alternative, which probably makes sense regardless of this test setup, would be to query, from pasta, addresses and routes we added, and wait until they're there, before proceeding. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test: Add memory/passt test casesStefano Brivio2022-11-042-0/+50
| | | | | | | | | | | | | | | | | | | | | | | | These show a summary of memory usage in kernel and userspace with different port forwarding configurations, details of userspace usage using 'nm' (passt only uses statically allocated memory), and details of kernel memory from slab reporting facilities. This adds a new test image, mbuto.mem.img, with harcoded IPv4 and IPv6 addresses and routes, and just the tools we need to start and stop passt, to report from /proc/slabinfo, /proc/meminfo, and to print and parse symbol sizes using nm(1). passt can't pivot_root() for sandboxing purposes on ramfs, so we need to create another filesystem and chroot into it, first. We don't want to use pane context functions, as we're checking memory usage for sockets: resort to screen-scraping. Configure a dummy interface to provide passt with an appearance of working IPv4 and IPv6 connectivity, contributed by David. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* test/lib: Add "td" directive, handled by table_value()Stefano Brivio2022-11-042-0/+31
| | | | | | | This can be used for generic cell values with an arbitrary scale. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* test/lib/perf_report: Use own flag to track initialisationStefano Brivio2022-11-041-3/+6
| | | | | | | | | Instead of just disabling performance reports if running in demo mode. This allows us to use table functions outside of performance reports. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* test/lib: Move screen-scraping setup and layout functions to _ugly filesStefano Brivio2022-11-044-92/+121
| | | | | | | | | | | I'm going to add yet another one of those, for which I have no quick solution. It's a regression in some sense, but at least if we make this regression more observable and defined, it should be easier to find a comprehensive solution later, within this or another testing framework. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* test: Add log file tests for pasta plus corresponding layout and setupStefano Brivio2022-10-263-1/+56
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To test log files on a tmpfs mount, we need to unshare the mount namespace, which means using a context for the passt pane is not really practical at the moment, as we can't open a shell there, so we would have to encapsulate all the commands under 'unshare -rUm', plus the "inner" pasta command, running in turn a tcp_rr server. It might be worth fixing this by e.g. detecting we are trying to spawn an interactive shell and adding a special path in the context setup with some form of stdin redirection -- I'm not sure it's doable though. For this reason, add a new layout, using a context only for the host pane, while keeping the old command dispatch mechanism for the passt pane. We also need a new setup function that doesn't start pasta: we want to start and restart it with different options. Further, we need a 'pint' directive, to send an interrupt to the passt pane: add that in lib/test. All the tests before the one involving tmpfs and a detached mount namespace were also tested with the context mechanism. To make an eventual conversion easier, pass tcp_crr directly as a command on pasta's command line where feasible. While at it, fix the comment to the teardown_pasta() function. The new test set can be semi-conveniently run as: ./run pasta_options/log_to_file and it checks basic log creation, size of the log file after flooding it with debug entries, rotations, and basic consistency after rotations, on both an existing filesystem and a tmpfs, chosen as it doesn't support collapsing data ranges via fallocate(), hence triggering the fall-back mechanism for logging rotation. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test: Add rudimentary support to run selected tests onlyStefano Brivio2022-10-141-1/+1
| | | | | | | | | | | | | | | To keep this simple, only support tests that have corresponding setup and teardown functions implied by their path. For example: ./run passt/ndp will trigger the 'passt' setup and teardown functions. This is not really elegant, but it looks robust, and while David is considering proper alternatives, it should be quite useful. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* test: Remove unneccessary pane naming from layout_two_guestsDavid Gibson2022-09-291-4/+0
| | | | | | | | | This loop goes through and gives a numeric label to each pane, even though we name the panes properly shortly thereafter. Looks like a leftover from some earlier version. Remove it. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test: Use --config-net for namespace setupDavid Gibson2022-09-291-14/+3
| | | | | | | | | | | | | | The setup functions for passt_in_ns and two_guests perform some fairly slow dhclient calls to configure the network in the namespace before starting the guest. This isn't really part of the tests, just necessary for the operations later. We can simplify and speed this up a bit by using pasta's '--config-net' option to configure the networking for us. As a bonus this means we have at least a minimal test of the --config-net option itself. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test: More robust wait for pasta/passt to be readyDavid Gibson2022-09-291-5/+10
| | | | | | | | | | | | | When we start passt or pasta, it may take a short time to be ready to handle packets, especially if running under valgrind. We have a number of semi-arbitrary fixed sleeps to account for this. We can do this more robustly by exploiting the fact that pasta/passt doesn't write its pidfile until it's ready to go, so if we wait for the pidfile to be created, we can proceed with confidence. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test: Add wait_for() shell helperDavid Gibson2022-09-292-3/+9
| | | | | | | | | | Add a shell helper function to wait for some command to succeed - typically a test for something to be done by a background process. Use it in the context code which waits for the guest to respond to ssh-over-vsock connections. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/lib: Don't try to write to perf.js when running demosStefano Brivio2022-09-241-0/+6
| | | | | | | ...it doesn't actually exist, and this error now causes the demo to stop. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/lib: Drop perf_report_append() from perf_reportStefano Brivio2022-09-241-6/+1
| | | | | | | It's not used anymore. While at it, fix the function name in the comment to perf_report_append_js(). Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/lib: Wait for DHCPv4 before starting DHCPv6 client in two_guests testStefano Brivio2022-09-231-0/+1
| | | | | | | | | | I'm not sure why, but dhclient hangs otherwise. This reflects what we do in the passt_in_ns setup steps. Eventually, this whole block could go away if we let pasta configure this network namespace with --config-net. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/lib: Wait for kernel to free up ports used by iperf3 before reusing themStefano Brivio2022-09-221-0/+2
| | | | | | | | If we start another server on the same port right away, we might fail to bind the port. A small delay appears to be needed -- I'm not entirely sure why at this point. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/lib: Run also iperf3 clients in background, revert to time-based waitStefano Brivio2022-09-221-3/+6
| | | | | | | | | | | | | | | Unfortunately, this partially counters recent efforts by David to speed up these tests, but it looks like iperf3 clients don't reliably terminate, in some rare cases I couldn't isolate yet. For the moment being, reintroduce the time-based wait approach, now using the configurable test duration, and terminate the servers at the end of it, in case they're stuck. There's no point in keeping the 'sleep 2' later, so drop that, and while at it, make sure that the stuck servers have time to flush the JSON output before we use it. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/perf: Disable periodic throughput reports to avoid vhost hangStefano Brivio2022-09-221-1/+1
| | | | | | | | | | | | | | | | | | It appears that if we run throughput tests with one-second periodic reports, the sending side of the vhost channel used for SSH-based command dispatch occasionally stops working altogether. I haven't investigated this further, all I see is that output is truncated at some point, and doesn't resume. If we use gzip compression (ssh -C) this happens less frequently, but it still happens, seemingly indicating the issue is probably related to vhost itself. Disable periodic reports in iperf3 clients. The -i options were actually redundant, so remove them from both test files as well as from test_iperf3(). Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/lib: Wait on iperf3 clients to be done, then send SIGINT to serversStefano Brivio2022-09-221-8/+8
| | | | | | | | | | | | | | | | An iperf3 client might fail to send the control message indicating the end of the test, if the kernel buffer doesn't accept it, and exit without having sent it, as the control socket is non-blocking. Should this happen, the server will just wait forever for this message, instead of terminating. Restore some of the behaviour that went away with the "test: Rewrite test_iperf3" patch: instead of waiting on servers to terminate, wait on the clients. When they are done, wait 2 seconds, and then send SIGINT to the servers, which make them still write out the JSON report before terminating. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test/lib: Restore IFS while executing directives in def blocksStefano Brivio2022-09-221-1/+1
| | | | | | | If we don't, guest command dispatch will fail altogether, given that we use cat(1) on the enter file, which contains spaces. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
* test: term: When checking if status line is a number, hide errorsStefano Brivio2022-09-141-1/+1
| | | | | | | | | | We use the [ "$x" -eq "$x" ] syntax to check if $x is a number. The behaviour is clearly implied by POSIX, but some shells might actually report the (intended) error, and dash floods script.log with "Illegal number" error messages. Hide them. Signed-off-by: Stefano Brivio <sbrivio@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
* test: Move perf.js report file to $LOGDIR/webDavid Gibson2022-09-131-1/+2
| | | | | | | | | The tests generate a performance report in $BASEPATH/perf.js and hooks/pre-push copies it to the website. To avoid cluttering the working directory, instead put perf.js in $LOGDIR/web, since it's a test output artefact. Update hooks/pre-push to copy from its new location. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Move video processing files to $STATEBASEDavid Gibson2022-09-132-20/+25
| | | | | | | | | | | | | The asciinema video handling creates a number of temporary files (.uncat, .start, .stop) which currently go into the source tree. Put them in the temporary state directory to avoid clutter. The final processed output is now placed into test_logs/web/ along with the corresponding .js file with links, since they're essentially test artefacts. hooks/pre-push is updated to look for those files in the new location when updating the web site. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Move pidfiles and nsholder sockets into state directoryDavid Gibson2022-09-131-33/+33
| | | | | | | Currently they go in the passt source tree with a fixed names, which means their presence can mess with subsequent test runs. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Store pcap files in $LOGDIR instead of /tmpDavid Gibson2022-09-131-8/+8
| | | | | | | The capture files are more or less a different form of log output from the tests, so place them in $LOGDIR. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Move pause temporary file to state directoryDavid Gibson2022-09-131-2/+2
| | | | Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Use paths in __STATEDIR__ instead of 'temp' and 'tempdir' directivesDavid Gibson2022-09-131-10/+0
| | | | | | | | | | | | Instead of using the 'temp' and 'tempdir' DSL directives to create temporary files, use fixed paths relative to __STATEDIR__. This has two advantages: 1) The files are automatically cleaned up if the tests fail (and even if that doesn't work they're easier to clean up manuall) 2) When debugging tests it's easier to figure out which of the temporary files are relevant to whatever's going wrong Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Move context temporary files to state dirDavid Gibson2022-09-131-29/+32
| | | | | | | | | Currently the context command dispatch subsystem creates a bunch of temporary files in $LOGDIR, which is messy. Store them in $STATEDIR which is for precisely this purpose. The logs from each context still go into $LOGDIR. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Move passt_test_log_pipe to state directoryDavid Gibson2022-09-132-14/+14
| | | | | | | We use this fifo to send messages to the information pane. Put it in the state directory so it doesn't need its own cleanup. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Create common state directories for temporary filesDavid Gibson2022-09-133-1/+7
| | | | | | | | | | | | | | | | | | The test scripts create a bunch of temporary files to keep track of internal state. Some are made in /tmp with individual mktemp calls, some go in the passt source directory, and some go in $LOGDIR. This can sometimes make it messy to clean up after failed test runs. Start cleaning this up by creating a single "state" directory ($STATEBASE) in /tmp for all the state or temporary files used by a single test run. Clean it up automatically in cleanup() - except when DEBUG==1, because those files can be useful for debugging test script failures. We create subdirectories under $STATEBASE for each setup function, exposed as $STATESETUP. We also create subdirectories for each test script and expose those to the scripts as __STATEDIR__. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Remove unused variable FFMPEG_PID_FILEDavid Gibson2022-09-131-1/+0
| | | | | | FFPMPEG_PID_FILE is set (creating a temporary file), then never used. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Use new-style command issue for passt_in_ns testsDavid Gibson2022-09-132-49/+34
| | | | | | | Put the pieces together to use the new style context based dispatch for the passt_in_pasta tests. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Use context system for two_guests testsDavid Gibson2022-09-132-73/+57
| | | | | | | | Now that we have all the pieces we need for issuing commands both into namespaces and into guests, we can use those to convert the two_guests to using only the new style context command issue. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Use context system for guest commandsDavid Gibson2022-09-134-11/+43
| | | | | | | | | | | | | | | Extends the context system in the test scripts to allow executing commands within a guest. Do this without requiring an existing network in the guest by using socat to run ssh via a vsock connection. We do need some additional "sleep"s in the tests, because the new faster dispatch means that sometimes we attempt to connect before socat has managed to listen. For now, only use this for the plain "passt" tests. The "passt_in_ns" and other tests have additional complications we still need to deal with. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Extend context system to run commands in namespace for pasta testsDavid Gibson2022-09-133-13/+29
| | | | | | | Extend the context system to allow commands to be run in a namespace created with unshare, and use it for the namespace used in the pasta tests. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Use new-style contexts for passt pane in the pasta and passt testsDavid Gibson2022-09-132-16/+11
| | | | | | | | | | Convert the pasta and passt tests to use new-style context execution for the things that run in the "passt" frame. Don't touch the passt_in_ns or two_guests tests yet, because they run passt inside a namespace which introduces some additional complications we have yet to handle. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
* test: Issue host commands via context for most testsDavid Gibson2022-09-132-25/+42
| | | | | | | | | Convert most of the tests to use the new-style system for issuing commands for all host commands. We leave the distro tests for now: they use the same pane for both host and guest commands which we'll need some more things to deal with. Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
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