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2020-10-13Remove superfluous .gitignore filesThomas Huth
Since we are now always doing out-of-tree builds, these gitignore files should not be necessary anymore. Message-Id: <20200919133637.72744-1-thuth@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-03-17tests/tcg/aarch64: add a gdbstub testcase for SVE registersAlex Bennée
A very simple test case which sets and reads SVE registers while running a test case. We don't really need to compile a SVE binary for this case but we will later so keep it simple for now. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20200316172155.971-24-alex.bennee@linaro.org>
2020-01-14qapi: Generate command registration stuff into separate filesMarkus Armbruster
Having to include qapi-commands.h just for qmp_init_marshal() is suboptimal. Generate it into separate files. This lets monitor/misc.c, qga/main.c, and the generated qapi-commands-FOO.h include less. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20191120182551.23795-4-armbru@redhat.com> [Typos in docs/devel/qapi-code-gen.txt fixed] Reviewed-by: Eric Blake <eblake@redhat.com>
2019-03-14tests/.gitignore: ignore test-qapi-emit-events.[ch] for in-tree buildsStefano Garzarella
Commit 5d75648b56e generates 'tests/test-qapi-emit-events.[ch]' but did not ignore them for in-tree builds. Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20190314104622.101715-3-sgarzare@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2019-03-05qapi: Fix code generation for sub-modules in other directoriesMarkus Armbruster
The #include directives to pull in sub-modules use file names relative to the main module. Works only when all modules are in the same directory, or the main module's output directory is in the compiler's include path. Use relative file names instead. The dummy variable we generate to avoid empty .o files has an invalid name for sub-modules in other directories. Fix that. Both messed up in commit 252dc3105fc "qapi: Generate separate .h, .c for each module". Escaped testing because tests/qapi-schema-test.json doesn't cover sub-modules in other directories, only tests/qapi-schema/include-relpath.json does, and we generate and compile C code only for the former, not the latter. Fold the latter into the former. This would have caught the mistakes fixed in this commit. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190301154051.23317-5-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2019-02-26tests: Ignore fp test outputsEric Blake
Commit 2cade3d wired up new tests, but did not exclude the new *.out files produced by running the tests. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
2018-07-24tests/.gitignore: don't ignore docker testsAlex Bennée
The .gitignore was being a little over enthusiastic hiding files. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-21tests: Simplify .gitignoreEric Blake
Commit 0bcc8e5b was yet another instance of 'git status' reporting dirty files after an in-tree build, thanks to the new binary tests/check-block-qdict. Instead of piecemeal exemptions of each new binary as they are added, let's use git's negative globbing feature to exempt ALL files that have a 'test-' or 'check-' prefix, except for the ones ending in '.c' or '.sh'. We still have a couple of generated files that then need (re-)exclusion, but the overall list is a LOT shorter, and less prone to needing future edits. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20180619203918.65450-1-eblake@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2018-06-01tests/.gitignore: add entry for generated fileRoss Zwisler
After a "make check" we end up with the following: $ git status On branch master Your branch is up-to-date with 'origin/master'. Untracked files: (use "git add <file>..." to include in what will be committed) tests/test-block-backend nothing added to commit but untracked files present (use "git add" to track) Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com> Fixes: commit ad0df3e0fdac ("block: test blk_aio_flush() with blk->root == NULL") Cc: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2018-03-13sockets: move fd_is_socket() into common sockets codeDaniel P. Berrange
The fd_is_socket() helper method is useful in a few places, so put it in the common sockets code. Make the code more compact while moving it. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-03-02qapi: Move qapi-schema.json to qapi/, rename generated filesMarkus Armbruster
Move qapi-schema.json to qapi/, so it's next to its modules, and all files get generated to qapi/, not just the ones generated for modules. Consistently name the generated files qapi-MODULE.EXT: qmp-commands.[ch] become qapi-commands.[ch], qapi-event.[ch] become qapi-events.[ch], and qmp-introspect.[ch] become qapi-introspect.[ch]. This gets rid of the temporary hacks in scripts/qapi/commands.py, scripts/qapi/events.py, and scripts/qapi/common.py. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180211093607.27351-28-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> [eblake: Fix trailing dot in tpm.c, undo temporary hack for OSX toolchain] Signed-off-by: Eric Blake <eblake@redhat.com>
2018-03-02qapi: Rename generated qmp-marshal.c to qmp-commands.cMarkus Armbruster
All generated .c are named like their .h, except for qmp-marshal.c and qmp-commands.h. To add to the confusion, tests-qmp-commands.c falsely matches generated test-qmp-commands.h. Get rid of this unnecessary complication. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20180211093607.27351-19-armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Eric Blake <eblake@redhat.com>
2018-01-23tests/.gitignore: Add test-bdrv-drainKevin Wolf
Commit 881cfd17 added a new test binary, include it in .gitignore. Reported-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-11-17tests: Add check-qobject for equality testsMax Reitz
Add a new test file (check-qobject.c) for unit tests that concern QObjects as a whole. Its only purpose for now is to test the qobject_is_equal() function. Signed-off-by: Max Reitz <mreitz@redhat.com> Message-id: 20171114180128.17076-7-mreitz@redhat.com Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com>
2017-10-16gitignore: ignore check-qlit testCarlo Marcelo Arenas Belón
test introduced in 382176b4d78e070d119af8e0dcd00884c11bbec2 Signed-off-by: Carlo Marcelo Arenas Belón <carenas@gmail.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-09-22gitignore: Ignore vm test imagesFam Zheng
Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2017-07-19tests: crypto: add hmac speed benchmark supportLongpeng(Mike)
This patch add a hmac speed benchmark, it helps us to measure the performance by using "make check-speed" or using "./tests/benchmark-crypto-hmac" directly. Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-07-19tests: crypto: add hash speed benchmark supportLongpeng(Mike)
This patch add a hash speed benchmark, it helps us to measure the performance by using "make check-speed" or using "./tests/benchmark-crypto-hash" directly. Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-07-19tests: crypto: add cipher speed benchmark supportLongpeng(Mike)
Now we have two qcrypto backends, libiary-backend and afalg-backend, but which one is faster? This patch add a cipher speed benchmark, it helps us to measure the performance by using "make check-speed" or using "./tests/benchmark-crypto-cipher" directly. Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2017-06-20qapi: merge QInt and QFloat in QNumMarc-André Lureau
We would like to use a same QObject type to represent numbers, whether they are int, uint, or floats. Getters will allow some compatibility between the various types if the number fits other representations. Add a few more tests while at it. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20170607163635.17635-7-marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [parse_stats_intervals() simplified a bit, comment in test_visitor_in_int_overflow() tidied up, suppress bogus warnings] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2017-05-10tests: Ignore another built executable (test-hmp)Eric Blake
Commit 78f86a2b7 added a new test, but forgot to exclude the built binary from version control. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-05-07tests: Ignore more test executablesEric Blake
Ignore test executables when building in-tree: test-arm-mptimer introduced in commit 882fac3 test-crypto-hmac introduced in commit 4fd460b test-aio-multithread introduced in commit 0c330a7 Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Laurent Vivier <lvivier@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2017-03-07test-qapi-util: New, covering qapi/qapi-util.cMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <1488317230-26248-18-git-send-email-armbru@redhat.com>
2017-03-07keyval: New keyval_parse()Markus Armbruster
keyval_parse() parses KEY=VALUE,... into a QDict. Works like qemu_opts_parse(), except: * Returns a QDict instead of a QemuOpts (d'oh). * Supports nesting, unlike QemuOpts: a KEY is split into key fragments at '.' (dotted key convention; the block layer does something similar on top of QemuOpts). The key fragments are QDict keys, and the last one's value is updated to VALUE. * Each key fragment may be up to 127 bytes long. qemu_opts_parse() limits the entire key to 127 bytes. * Overlong key fragments are rejected. qemu_opts_parse() silently truncates them. * Empty key fragments are rejected. qemu_opts_parse() happily accepts empty keys. * It does not store the returned value. qemu_opts_parse() stores it in the QemuOptsList. * It does not treat parameter "id" specially. qemu_opts_parse() ignores all but the first "id", and fails when its value isn't id_wellformed(), or duplicate (a QemuOpts with the same ID is already stored). It also screws up when a value contains ",id=". * Implied value is not supported. qemu_opts_parse() desugars "foo" to "foo=on", and "nofoo" to "foo=off". * An implied key's value can't be empty, and can't contain ','. I intend to grow this into a saner replacement for QemuOpts. It'll take time, though. Note: keyval_parse() provides no way to do lists, and its key syntax is incompatible with the __RFQDN_ prefix convention for downstream extensions, because it blindly splits at '.', even in __RFQDN_. Both issues will be addressed later in the series. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <1488317230-26248-4-git-send-email-armbru@redhat.com>
2017-01-31host-utils: Implement unsigned quadword left/right shift and unit testsJose Ricardo Ziviani
Implements 128-bit left shift and right shift as well as their testcases. By design, shift silently mods by 128, so the caller is responsible to assert the shift range if necessary. Left shift sets the overflow flag if any non-zero digit is shifted out. Examples: ulshift(&low, &high, 250, &overflow); equivalent: n << 122 urshift(&low, &high, -2); equivalent: n << 126 Signed-off-by: Jose Ricardo Ziviani <joserz@linux.vnet.ibm.com> Reviewed-by: Eric Blake <eblake@redhat.com> [dwg: Added test-shift128 to .gitignore] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2017-01-10tests: New test-bitcntAlex Bennée
Add some unit tests for bit count functions (currently only ctpop). As the routines are based on the Hackers Delight optimisations I based the test patterns on their tests. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-12-06tests/.gitignore: Ignore test-charChanglong Xie
[Lin Ma <lma@suse.com> notes that commit ea3af47d added test for chardev unit tests, but didn't add the name of generated binary in .gitignore. --Stefan] Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1478494765-13233-1-git-send-email-xiecl.fnst@cn.fujitsu.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-10-28aio: convert from RFifoLock to QemuRecMutexPaolo Bonzini
It is simpler and a bit faster, and QEMU does not need the contention callbacks (and thus the fairness) anymore. Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <1477565348-5458-21-git-send-email-pbonzini@redhat.com> Signed-off-by: Fam Zheng <famz@redhat.com>
2016-10-26tests: add atomic_add-benchEmilio G. Cota
With this microbenchmark we can measure the overhead of emulating atomic instructions with a configurable degree of contention. The benchmark spawns $n threads, each performing $o atomic ops (additions) in a loop. Each atomic operation is performed on a different cache line (assuming lines are 64b long) that is randomly selected from a range [0, $r). [ Note: each $foo corresponds to a -foo flag ] Signed-off-by: Emilio G. Cota <cota@braap.org> Signed-off-by: Richard Henderson <rth@twiddle.net> Message-Id: <1467054136-10430-20-git-send-email-cota@braap.org>
2016-10-25qapi: rename *qmp-*-visitor* to *qobject-*-visitor*Daniel P. Berrange
The QMP visitors have no direct dependency on QMP. It is valid to use them anywhere that one has a QObject. Rename them to better reflect their functionality as a generic QObject to QAPI converter. This is the first of three parts: rename the files. The next two parts will rename C identifiers. The split is necessary to make git rename detection work. Reviewed-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> [Split into file and identifier rename, two comments touched up] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-10-08tests: Ignore test executablesEric Blake
Commits 9ef8112a and efad6682 introduced new tests, but forgot to ignore the built executables from an in-tree build. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Alberto Garcia <berto@igalia.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-09-27tests: Add test code for CPUID level/xlevel handlingEduardo Habkost
Add test code that will check if the automatic CPUID level changes are working as expected. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-09-23tests: Ignore test-uuidFam Zheng
Signed-off-by: Fam Zheng <famz@redhat.com> Message-Id: <1474432046-325-14-git-send-email-famz@redhat.com> Reviewed-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
2016-09-13tests: add unit test case for replicationChanglong Xie
[Rename get_error test cases to get_error_all to avoid tripping up scripts that grep for "error:" in test output. It also reflects the actual replication API function name better. -Stefan] Signed-off-by: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com> Signed-off-by: Wang WeiWei <wangww.fnst@cn.fujitsu.com> Message-id: 1469602913-20979-11-git-send-email-xiecl.fnst@cn.fujitsu.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-07-06qapi: Add new clone visitorEric Blake
We have a couple places in the code base that want to deep-clone one QAPI object into another, and they were resorting to serializing the struct out to QObject then reparsing it. A much more efficient version can be done by adding a new clone visitor. Since cloning is still relatively uncommon, expose the use of the new visitor via a QAPI_CLONE() macro that takes care of type-punning the underlying function pointer, rather than generating lots of unused functions for types that won't be cloned. And yes, we're relying on the compiler treating all pointers equally, even though a strict C program cannot portably do so - but we're not the first one in the qemu code base to expect it to work (hello, glib!). The choice of adding a fourth visitor type deserves some explanation. On the surface, the clone visitor is mostly an input visitor (it takes arbitrary input - in this case, another QAPI object - and creates a new QAPI object during the course of the visit). But ever since commit da72ab0 consolidated enum visits based on the visitor type, using VISITOR_INPUT would cause us to run visit_type_str(), even though for cloning there is nothing to do (we just copy the enum value across, without regards to its mapping to strings). Also, since our input happens to be a QAPI object, we can also satisfy the internal checks for VISITOR_OUTPUT. So in the end, I settled with a new VISITOR_CLONE, and chose its value such that many internal checks can use 'v->type & mask', sticking to 'v->type == value' where the difference matters. Note that we can only clone objects (including alternates) and lists, not built-ins or enums. The visitor core hides integer width from the actual visitor (since commit 04e070d), and as long as that's the case, we can't clone top-level integers. Then again, those can always be cloned by direct copy, since they are not objects with deep pointers, so it's no real loss. And restricting cloning to just objects and lists is cleaner than restricting it to non-integers. As such, I documented that the clone visitor is for direct use only by code internal to QAPI, and should not be used on incomplete objects (other than a hack to work around the fact that we allow NULL in place of "" in visit_type_str() in other output visitors). Note that as written, the clone visitor will never fail on a complete object. Scalars (including enums) not at the root of the clone copy just fine with no additional effort while visiting the scalar, by virtue of a g_memdup() each time we push another struct onto the stack. Cloning a string requires deduplication of a pointer, which means it can also provide the guarantee of an input visitor of never producing NULL even when still accepting NULL in place of "" the way the QMP output visitor does. Cloning an 'any' type could be possible by incrementing the QObject refcnt, but it's not obvious whether that is better than implementing a QObject deep clone. So for now, we document it as unsupported, and intentionally omit the .type_any() callback to let a developer know their usage needs implementation. Add testsuite coverage for several different clone situations, to ensure that the code is working. I also tested that valgrind was happy with the test. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1465490926-28625-14-git-send-email-eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-06-11qht: add test-qht-par to invoke qht-bench from 'check' targetEmilio G. Cota
Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <1465412133-3029-14-git-send-email-cota@braap.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-06-11qht: add qht-bench, a performance benchmarkEmilio G. Cota
This serves as a performance benchmark as well as a stress test for QHT. We can tweak quite a number of things, including the number of resize threads and how frequently resizes are triggered. A performance comparison of QHT vs CLHT[1] and ck_hs[2] using this same benchmark program can be found here: http://imgur.com/a/0Bms4 The tests are run on a 64-core AMD Opteron 6376, pinning threads to cores favoring same-socket cores. For each run, qht-bench is invoked with: $ tests/qht-bench -d $duration -n $n -u $u -g $range , where $duration is in seconds, $n is the number of threads, $u is the update rate (0.0 to 100.0), and $range is the number of keys. Note that ck_hs's performance drops significantly as writes go up, since it requires an external lock (I used a ck_spinlock) around every write. Also, note that CLHT instead of using a seqlock, relies on an allocator that does not ever return the same address during the same read-critical section. This gives it a slight performance advantage over QHT on read-heavy workloads, since the seqlock writes aren't there. [1] CLHT: https://github.com/LPD-EPFL/CLHT https://infoscience.epfl.ch/record/207109/files/ascy_asplos15.pdf [2] ck_hs: http://concurrencykit.org/ http://backtrace.io/blog/blog/2015/03/13/workload-specialization/ A few of those plots are shown in text here, since that site might not be online forever. Throughput is on Mops/s on the Y axis. 200K keys, 0 % updates 450 ++--+------+------+-------+-------+-------+-------+------+-------+--++ | + + + + + + + + +N+ | 400 ++ ---+E+ ++ | +++---- | 350 ++ 9 ++------+------++ --+E+ -+H+ ++ | | +H+- | -+N+---- ---- +++ | 300 ++ 8 ++ +E+ ++ -----+E+ --+H+ ++ | | +++ | -+N+-----+H+-- | 250 ++ 7 ++------+------++ +++-----+E+---- ++ 200 ++ 1 -+E+-----+H+ ++ | ---- qht +-E--+ | 150 ++ -+E+ clht +-H--+ ++ | ---- ck +-N--+ | 100 ++ +E+ ++ | ---- | 50 ++ -+E+ ++ | +E+E+ + + + + + + + + | 0 ++--E------+------+-------+-------+-------+-------+------+-------+--++ 1 8 16 24 32 40 48 56 64 Number of threads 200K keys, 1 % updates 350 ++--+------+------+-------+-------+-------+-------+------+-------+--++ | + + + + + + + + -+E+ | 300 ++ -----+H+ ++ | +E+-- | | 9 ++------+------++ +++---- | 250 ++ | +E+ -- | -+E+ ++ | 8 ++ -- ++ ---- | 200 ++ | +++- | +++ ---+E+ ++ | 7 ++------N------++ -+E+-- qht +-E--+ | | 1 +++---- clht +-H--+ | 150 ++ -+E+ ck +-N--+ ++ | ---- | 100 ++ +E+ ++ | ---- | | -+E+ | 50 ++ +H+-+N+----+N+-----+N+------ ++ | +E+E+ + + + +N+-----+N+-----+N+----+N+-----+N+ | 0 ++--E------+------+-------+-------+-------+-------+------+-------+--++ 1 8 16 24 32 40 48 56 64 Number of threads 200K keys, 20 % updates 300 ++--+------+------+-------+-------+-------+-------+------+-------+--++ | + + + + + + + + + | | -+H+ | 250 ++ ---- ++ | 9 ++------+------++ --+H+ ---+E+ | | 8 ++ +H+-- ++ -+H+----+E+-- | 200 ++ | +E+ --| -----+E+-- +++ ++ | 7 ++ + ---- ++ ---+H+---- +++ qht +-E--+ | 150 ++ 6 ++------N------++ -+H+-----+E+ clht +-H--+ ++ | 1 -----+E+-- ck +-N--+ | | -+H+---- | 100 ++ -----+E+ ++ | +E+-- | | ----+++ | 50 ++ -+E+ ++ | +E+ +++ | | +E+N+-+N+-----+ + + + + + + | 0 ++--E------+------N-------N-------N-------N-------N------N-------N--++ 1 8 16 24 32 40 48 56 64 Number of threads 200K keys, 100 % updates qht +-E--+ clht +-H--+ 160 ++--+------+------+-------+-------+-------+-------+---ck-+-N-----+--++ | + + + + + + + + ----H | 140 ++ +H+-- -+E+ ++ | +++---- ---- | 120 ++ 8 ++------+------++ -+H+ +E+ ++ | 7 ++ +H+---- ++ ---- +++---- | 100 ++ | +E+ | +++ ---+H+ -+E+ ++ | 6 ++ +++ ++ -+H+-- +++---- | 80 ++ 5 ++------N----------+E+-----+E+ ++ | 1 -+H+---- +++ | | -----+E+ | 60 ++ +H+---- +++ ++ | ----+E+ | 40 ++ +H+---- ++ | --+E+ | 20 ++ +E+ ++ | +EE+ + + + + + + + + | 0 ++--+N-N---N------N-------N-------N-------N-------N------N-------N--++ 1 8 16 24 32 40 48 56 64 Number of threads Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <1465412133-3029-13-git-send-email-cota@braap.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-06-11qht: add test programEmilio G. Cota
Acked-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <1465412133-3029-12-git-send-email-cota@braap.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-06-11qdist: add test programEmilio G. Cota
Acked-by: Sergey Fedorov <sergey.fedorov@linaro.org> Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Emilio G. Cota <cota@braap.org> Message-Id: <1465412133-3029-10-git-send-email-cota@braap.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
2016-05-12tests: Add check-qnullEric Blake
Add a new test, for checking reference counting of qnull(). As part of the new file, move a previous reference counting change added in commit a861564 to a more logical place. Note that while most of the check-q*.c leave visitor stuff to the test-qmp-*-visitor.c, in this case we actually want the visitor tests in our new file because we are validating the reference count of qnull_, which is an internal detail that test-qmp-*-visitor should not be peeking into (or put another way, qnull() is the only special case where we don't have independent allocation of a QObject, so none of the other visitor tests require the layering violation present in this test). Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <1461879932-9020-14-git-send-email-eblake@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-04-08tests: ignore test-loggingChanglong Xie
Commit 3514552e added a new test, but did not mark it for exclusion in .gitignore. Signed-off-by: Changlong Xie <xiecl.fnst@cn.fujitsu.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <1459903756-30672-1-git-send-email-xiecl.fnst@cn.fujitsu.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-03-30tests/test-filter-redirector: Add unit test for filter-redirectorZhang Chen
In this unit test,we will test the filter redirector function. Case 1, tx traffic flow: qemu side | test side | +---------+ | +-------+ | backend <---------------+ sock0 | +----+----+ | +-------+ | | +----v----+ +-------+ | | rd0 +->+chardev| | +---------+ +---+---+ | | | +---------+ | | | rd1 <------+ | +----+----+ | | | +----v----+ | +-------+ | rd2 +--------------->sock1 | +---------+ | +-------+ + a. we(sock0) inject packet to qemu socket backend b. backend pass packet to filter redirector0(rd0) c. rd0 redirect packet to out_dev(chardev) which is connected with filter redirector1's(rd1) in_dev d. rd1 read this packet from in_dev, and pass to next filter redirector2(rd2) e. rd2 redirect packet to rd2's out_dev which is connected with an opened socketed(sock1) f. we read packet from sock1 and compare to what we inject Start qemu with: "-netdev socket,id=qtest-bn0,fd=%d " "-device rtl8139,netdev=qtest-bn0,id=qtest-e0 " "-chardev socket,id=redirector0,path=%s,server,nowait " "-chardev socket,id=redirector1,path=%s,server,nowait " "-chardev socket,id=redirector2,path=%s,nowait " "-object filter-redirector,id=qtest-f0,netdev=qtest-bn0," "queue=tx,outdev=redirector0 " "-object filter-redirector,id=qtest-f1,netdev=qtest-bn0," "queue=tx,indev=redirector2 " "-object filter-redirector,id=qtest-f2,netdev=qtest-bn0," "queue=tx,outdev=redirector1 " -------------------------------------- Case 2, rx traffic flow qemu side | test side | +---------+ | +-------+ | backend +---------------> sock1 | +----^----+ | +-------+ | | +----+----+ +-------+ | | rd0 +<-+chardev| | +---------+ +---+---+ | ^ | +---------+ | | | rd1 +------+ | +----^----+ | | | +----+----+ | +-------+ | rd2 <---------------+sock0 | +---------+ | +-------+ a. we(sock0) insert packet to filter redirector2(rd2) b. rd2 pass packet to filter redirector1(rd1) c. rd1 redirect packet to out_dev(chardev) which is connected with filter redirector0's(rd0) in_dev d. rd0 read this packet from in_dev, and pass ti to qemu backend which is connected with an opened socketed(sock1) e. we read packet from sock1 and compare to what we inject Start qemu with: "-netdev socket,id=qtest-bn0,fd=%d " "-device rtl8139,netdev=qtest-bn0,id=qtest-e0 " "-chardev socket,id=redirector0,path=%s,server,nowait " "-chardev socket,id=redirector1,path=%s,server,nowait " "-chardev socket,id=redirector2,path=%s,nowait " "-object filter-redirector,id=qtest-f0,netdev=qtest-bn0," "queue=rx,outdev=redirector0 " "-object filter-redirector,id=qtest-f1,netdev=qtest-bn0," "queue=rx,indev=redirector2 " "-object filter-redirector,id=qtest-f2,netdev=qtest-bn0," "queue=rx,outdev=redirector1 " Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com> Signed-off-by: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-03-30tests/test-filter-mirror:add filter-mirror unit testZhang Chen
In this unit test we will test the mirror function. start qemu with: -netdev socket,id=qtest-bn0,fd=sockfd -device e1000,netdev=qtest-bn0,id=qtest-e0 -chardev socket,id=mirror0,path=/tmp/filter-mirror-test.sock,server,nowait -object filter-mirror,id=qtest-f0,netdev=qtest-bn0,queue=tx,outdev=mirror0 We inject packet to netdev socket id = qtest-bn0, filter-mirror will copy and mirror the packet to mirror0. we read packet from mirror0 and then compare to what we injected. Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com> Signed-off-by: Wen Congyang <wency@cn.fujitsu.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-03-17crypto: add block encryption frameworkDaniel P. Berrange
Add a generic framework for supporting different block encryption formats. Upon instantiating a QCryptoBlock object, it will read the encryption header and extract the encryption keys. It is then possible to call methods to encrypt/decrypt data buffers. There is also a mode whereby it will create/initialize a new encryption header on a previously unformatted volume. The initial framework comes with support for the legacy QCow AES based encryption. This enables code in the QCow driver to be consolidated later. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-03-17crypto: import an implementation of the XTS cipher modeDaniel P. Berrange
The XTS (XEX with tweaked-codebook and ciphertext stealing) cipher mode is commonly used in full disk encryption. There is unfortunately no implementation of it in either libgcrypt or nettle, so we need to provide our own. The libtomcrypt project provides a repository of crypto algorithms under a choice of either "public domain" or the "what the fuck public license". So this impl is taken from the libtomcrypt GIT repo and adapted to be compatible with the way we need to call ciphers provided by nettle/gcrypt. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-03-17crypto: add support for anti-forensic split algorithmDaniel P. Berrange
The LUKS format specifies an anti-forensic split algorithm which is used to artificially expand the size of the key material on disk. This is an implementation of that algorithm. Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-03-17crypto: add support for generating initialization vectorsDaniel P. Berrange
There are a number of different algorithms that can be used to generate initialization vectors for disk encryption. This introduces a simple internal QCryptoBlockIV object to provide a consistent internal API to the different algorithms. The initially implemented algorithms are 'plain', 'plain64' and 'essiv', each matching the same named algorithm provided by the Linux kernel dm-crypt driver. Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-03-17crypto: add support for PBKDF2 algorithmDaniel P. Berrange
The LUKS data format includes use of PBKDF2 (Password-Based Key Derivation Function). The Nettle library can provide an implementation of this, but we don't want code directly depending on a specific crypto library backend. Introduce a new include/crypto/pbkdf.h header which defines a QEMU API for invoking PBKDK2. The initial implementations are backed by nettle & gcrypt, which are commonly available with distros shipping GNUTLS. The test suite data is taken from the cryptsetup codebase under the LGPLv2.1+ license. This merely aims to verify that whatever backend we provide for this function in QEMU will comply with the spec. Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-12-18crypto: add QCryptoSecret object class for password/key handlingDaniel P. Berrange
Introduce a new QCryptoSecret object class which will be used for providing passwords and keys to other objects which need sensitive credentials. The new object can provide secret values directly as properties, or indirectly via a file. The latter includes support for file descriptor passing syntax on UNIX platforms. Ordinarily passing secret values directly as properties is insecure, since they are visible in process listings, or in log files showing the CLI args / QMP commands. It is possible to use AES-256-CBC to encrypt the secret values though, in which case all that is visible is the ciphertext. For ad hoc developer testing though, it is fine to provide the secrets directly without encryption so this is not explicitly forbidden. The anticipated scenario is that libvirtd will create a random master key per QEMU instance (eg /var/run/libvirt/qemu/$VMNAME.key) and will use that key to encrypt all passwords it provides to QEMU via '-object secret,....'. This avoids the need for libvirt (or other mgmt apps) to worry about file descriptor passing. It also makes life easier for people who are scripting the management of QEMU, for whom FD passing is significantly more complex. Providing data inline (insecure, only for ad hoc dev testing) $QEMU -object secret,id=sec0,data=letmein Providing data indirectly in raw format printf "letmein" > mypasswd.txt $QEMU -object secret,id=sec0,file=mypasswd.txt Providing data indirectly in base64 format $QEMU -object secret,id=sec0,file=mykey.b64,format=base64 Providing data with encryption $QEMU -object secret,id=master0,file=mykey.b64,format=base64 \ -object secret,id=sec0,data=[base64 ciphertext],\ keyid=master0,iv=[base64 IV],format=base64 Note that 'format' here refers to the format of the ciphertext data. The decrypted data must always be in raw byte format. More examples are shown in the updated docs. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2015-12-18util: add base64 decoding functionDaniel P. Berrange
The standard glib provided g_base64_decode doesn't provide any kind of sensible error checking on its input. Add a QEMU custom wrapper qbase64_decode which can be used with untrustworthy input that can contain invalid base64 characters, embedded NUL characters, or not be NUL terminated at all. Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
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