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When encounter error, multifd_send_thread should always notify who pay
attention to it before exit. Otherwise it may block migration_thread
at multifd_send_sync_main forever.
Error as follow:
-------------------------------------------------------------------------------
(gdb) bt
#0 0x00007f4d669dfa0b in do_futex_wait.constprop.1 () from /lib64/libpthread.so.0
#1 0x00007f4d669dfa9f in __new_sem_wait_slow.constprop.0 () from /lib64/libpthread.so.0
#2 0x00007f4d669dfb3b in sem_wait@@GLIBC_2.2.5 () from /lib64/libpthread.so.0
#3 0x0000562ccf0a5614 in qemu_sem_wait (sem=sem@entry=0x562cd1b698e8) at util/qemu-thread-posix.c:319
#4 0x0000562ccecb4752 in multifd_send_sync_main (rs=<optimized out>) at /qemu/migration/ram.c:1099
#5 0x0000562ccecb95f4 in ram_save_iterate (f=0x562cd0ecc000, opaque=<optimized out>) at /qemu/migration/ram.c:3550
#6 0x0000562ccef43c23 in qemu_savevm_state_iterate (f=0x562cd0ecc000, postcopy=false) at migration/savevm.c:1189
#7 0x0000562ccef3dcf3 in migration_iteration_run (s=0x562cd09fabf0) at migration/migration.c:3131
#8 migration_thread (opaque=opaque@entry=0x562cd09fabf0) at migration/migration.c:3258
#9 0x0000562ccf0a4c26 in qemu_thread_start (args=<optimized out>) at util/qemu-thread-posix.c:502
#10 0x00007f4d669d9e25 in start_thread () from /lib64/libpthread.so.0
#11 0x00007f4d6670635d in clone () from /lib64/libc.so.6
(gdb) f 4
#4 0x0000562ccecb4752 in multifd_send_sync_main (rs=<optimized out>) at /qemu/migration/ram.c:1099
1099 qemu_sem_wait(&p->sem_sync);
(gdb) list
1094 }
1095 for (i = 0; i < migrate_multifd_channels(); i++) {
1096 MultiFDSendParams *p = &multifd_send_state->params[i];
1097
1098 trace_multifd_send_sync_main_wait(p->id);
1099 qemu_sem_wait(&p->sem_sync);
1100 }
1101 trace_multifd_send_sync_main(multifd_send_state->packet_num);
1102 }
1103
(gdb) p i
$1 = 0
(gdb) p multifd_send_state->params[0].pending_job
$2 = 2 //It means the job before MULTIFD_FLAG_SYNC has already fail
(gdb) p multifd_send_state->params[0].quit
$3 = true
Signed-off-by: Ivan Ren <ivanren@tencent.com>
Message-Id: <1567044996-2362-1-git-send-email-ivanren@tencent.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
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into staging
Add the m68k next-cube machine
# gpg: Signature made Sat 07 Sep 2019 16:32:53 BST
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "huth@tuxfamily.org"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* remotes/huth-gitlab/tags/m68k-pull-2019-09-07:
.travis.yml: Let the avocado job run the NeXTcube tests
tests/acceptance: Add test of NeXTcube framebuffer using OCR
m68k: Add an entry for the NeXTcube machine to the MAINTAINERS file
m68k: Add serial controller to the NeXTcube machine
escc: introduce a selector for the register bit
m68k: Add NeXTcube machine
m68k: Add NeXTcube keyboard device
m68k: Add NeXTcube framebuffer device emulation
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20190813134921.30602-3-philmd@redhat.com>
[huth: Rebased patch to master branch]
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
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Add a test of the NeXTcube framebuffer using the Tesseract OCR
engine on a screenshot of the framebuffer device.
The test is very quick:
$ avocado --show=app,console run tests/acceptance/machine_m68k_nextcube.py
JOB ID : 78844a92424cc495bd068c3874d542d1e20f24bc
JOB LOG : /home/phil/avocado/job-results/job-2019-08-13T13.16-78844a9/job.log
(1/3) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_size: PASS (2.16 s)
(2/3) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_ocr_with_tesseract_v3: -
ue r pun Honl'flx ; 5‘ 55‘
avg ncaaaaa 25 MHZ, memary jag m
Backplane slat «a
Ethernet address a a r a r3 2
Memgry sackets aea canflqured far 16MB Darlly page made stMs but have 16MB page made stMs )nstalled
Memgry sackets a and 1 canflqured far 16MB Darlly page made stMs but have 16MB page made stMs )nstalled
[...]
Yestlnq the rpu, 5::
system test raneg Errar egge 51
Egg: cammand
Default pggc devlce nut fauna
NEXY>I
PASS (2.64 s)
(3/3) tests/acceptance/machine_m68k_nextcube.py:NextCubeMachine.test_bootrom_framebuffer_ocr_with_tesseract_v4: SKIP: tesseract v4 OCR tool not available
RESULTS : PASS 2 | ERROR 0 | FAIL 0 | SKIP 1 | WARN 0 | INTERRUPT 0 | CANCEL 0
JOB TIME : 5.35 s
Documentation on how to install tesseract:
https://github.com/tesseract-ocr/tesseract/wiki#installation
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20190813134921.30602-2-philmd@redhat.com>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
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I don't have much clue about the NeXT hardware, but at least I know now
the source files a little bit, so I volunteer to pick up patches and send
PULL requests for them until someone else with more knowledge steps up
to do this job instead.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190831074519.32613-7-huth@tuxfamily.org>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
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The NeXTcube uses a normal 8530 serial controller, so we can simply use
our normal "escc" device here.
While we're at it, also add a boot-serial-test for the next-cube machine,
now that the serial output works.
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190831074519.32613-6-huth@tuxfamily.org>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
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On Sparc and PowerMac, the bit 0 of the address selects the register
type (control or data) and bit 1 selects the channel (B or A).
On m68k Macintosh and NeXTcube, the bit 0 selects the channel and
bit 1 the register type.
This patch introduces a new parameter (bit_swap) to the device interface
to indicate bits usage must be swapped between registers and channels.
For the moment all the machines use the bit 0, but this change will be
needed to emulate the Quadra 800 or NeXTcube machine.
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Hervé Poussineau <hpoussin@reactos.org>
[thh: added NeXTcube to the patch description]
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190831074519.32613-5-huth@tuxfamily.org>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
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It is still quite incomplete (no SCSI, no floppy emulation, no network,
etc.), but the firmware already shows up the debug monitor prompt in the
framebuffer display, so at least the very basics are already working.
This code has been taken from Bryce Lanham's GSoC 2011 NeXT branch at
https://github.com/blanham/qemu-NeXT/blob/next-cube/hw/next-cube.c
and altered quite a bit to fit the latest interface and coding conventions
of the current QEMU.
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190831074519.32613-4-huth@tuxfamily.org>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
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It is likely still quite incomplete (e.g. mouse and interrupts are not
implemented yet), but it is good enough for keyboard input at the firmware
monitor.
This code has been taken from Bryce Lanham's GSoC 2011 NeXT branch at
https://github.com/blanham/qemu-NeXT/blob/next-cube/hw/next-kbd.c
and altered to fit the latest interface of the current QEMU (e.g. to use
memory_region_init_io() instead of cpu_register_physical_memory()).
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190831074519.32613-3-huth@tuxfamily.org>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
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The NeXTcube uses a linear framebuffer with 4 greyscale colors and
a fixed resolution of 1120 * 832.
This code has been taken from Bryce Lanham's GSoC 2011 NeXT branch at
https://github.com/blanham/qemu-NeXT/blob/next-cube/hw/next-fb.c
and altered to fit the latest interface of the current QEMU (e.g.
the device has been "qdev"-ified etc.).
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190831074519.32613-2-huth@tuxfamily.org>
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
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into staging
nbd patches for 2019-09-05
- Advertise NBD_FLAG_CAN_MULTI_CONN on readonly images
- Tolerate larger set of server error responses during handshake
- More precision on handling fallocate() failures due to alignment
- Better documentation of NBD connection URIs
- Implement new extension NBD_CMD_FLAG_FAST_ZERO to benefit qemu-img convert
# gpg: Signature made Thu 05 Sep 2019 22:08:17 BST
# gpg: using RSA key 71C2CC22B1C4602927D2F3AAA7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full]
# gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full]
# gpg: aka "[jpeg image of size 6874]" [full]
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2 F3AA A7A1 6B4A 2527 436A
* remotes/ericb/tags/pull-nbd-2019-09-05-v2:
nbd: Implement server use of NBD FAST_ZERO
nbd: Implement client use of NBD FAST_ZERO
nbd: Prepare for NBD_CMD_FLAG_FAST_ZERO
nbd: Improve per-export flag handling in server
docs: Update preferred NBD device syntax
block: workaround for unaligned byte range in fallocate()
nbd: Tolerate more errors to structured reply request
nbd: Use g_autofree in a few places
nbd: Advertise multi-conn for shared read-only connections
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The server side is fairly straightforward: we can always advertise
support for detection of fast zero, and implement it by mapping the
request to the block layer BDRV_REQ_NO_FALLBACK.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190823143726.27062-5-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
[eblake: update iotests 223, 233]
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The client side is fairly straightforward: if the server advertised
fast zero support, then we can map that to BDRV_REQ_NO_FALLBACK
support. A server that advertises FAST_ZERO but not WRITE_ZEROES
is technically broken, but we can ignore that situation as it does
not change our behavior.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190823143726.27062-4-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
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Commit fe0480d6 and friends added BDRV_REQ_NO_FALLBACK as a way to
avoid wasting time on a preliminary write-zero request that will later
be rewritten by actual data, if it is known that the write-zero
request will use a slow fallback; but in doing so, could not optimize
for NBD. The NBD specification is now considering an extension that
will allow passing on those semantics; this patch updates the new
protocol bits and 'qemu-nbd --list' output to recognize the bit, as
well as the new errno value possible when using the new flag; while
upcoming patches will improve the client to use the feature when
present, and the server to advertise support for it.
The NBD spec recommends (but not requires) that ENOTSUP be avoided for
all but failures of a fast zero (the only time it is mandatory to
avoid an ENOTSUP failure is when fast zero is supported but not
requested during write zeroes; the questionable use is for ENOTSUP to
other actions like a normal write request). However, clients that get
an unexpected ENOTSUP will either already be treating it the same as
EINVAL, or may appreciate the extra bit of information. We were
equally loose for returning EOVERFLOW in more situations than
recommended by the spec, so if it turns out to be a problem in
practice, a later patch can tighten handling for both error codes.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190823143726.27062-3-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
[eblake: tweak commit message, also handle EOPNOTSUPP]
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When creating a read-only image, we are still advertising support for
TRIM and WRITE_ZEROES to the client, even though the client should not
be issuing those commands. But seeing this requires looking across
multiple functions:
All callers to nbd_export_new() passed a single flag based solely on
whether the export allows writes. Later, we then pass a constant set
of flags to nbd_negotiate_options() (namely, the set of flags which we
always support, at least for writable images), which is then further
dynamically modified with NBD_FLAG_SEND_DF based on client requests
for structured options. Finally, when processing NBD_OPT_EXPORT_NAME
or NBD_OPT_EXPORT_GO we bitwise-or the original caller's flag with the
runtime set of flags we've built up over several functions.
Let's refactor things to instead compute a baseline of flags as soon
as possible which gets shared between multiple clients, in
nbd_export_new(), and changing the signature for the callers to pass
in a simpler bool rather than having to figure out flags. We can then
get rid of the 'myflags' parameter to various functions, and instead
refer to client for everything we need (we still have to perform a
bitwise-OR for NBD_FLAG_SEND_DF during NBD_OPT_EXPORT_NAME and
NBD_OPT_EXPORT_GO, but it's easier to see what is being computed).
This lets us quit advertising senseless flags for read-only images, as
well as making the next patch for exposing FAST_ZERO support easier to
write.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190823143726.27062-2-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
[eblake: improve commit message, update iotest 223]
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Mention the preferred URI form, especially since NBD is trying to
standardize that form: https://lists.debian.org/nbd/2019/06/msg00012.html
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190903145634.20237-1-eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
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Revert the commit 118f99442d 'block/io.c: fix for the allocation failure'
and use better error handling for file systems that do not support
fallocate() for an unaligned byte range. Allow falling back to pwrite
in case fallocate() returns EINVAL.
Suggested-by: Kevin Wolf <kwolf@redhat.com>
Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Message-Id: <1566913973-15490-1-git-send-email-andrey.shinkevich@virtuozzo.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
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A server may have a reason to reject a request for structured replies,
beyond just not recognizing them as a valid request; similarly, it may
have a reason for rejecting a request for a meta context. It doesn't
hurt us to continue talking to such a server; otherwise 'qemu-nbd
--list' of such a server fails to display all available details about
the export.
Encountered when temporarily tweaking nbdkit to reply with
NBD_REP_ERR_POLICY. Present since structured reply support was first
added (commit d795299b reused starttls handling, but starttls is
different in that we can't fall back to other behavior on any error).
Note that for an unencrypted client trying to connect to a server that
requires encryption, this defers the point of failure to when we
finally execute a strict command (such as NBD_OPT_GO or NBD_OPT_LIST),
now that the intermediate NBD_OPT_STRUCTURED_REPLY does not diagnose
NBD_REP_ERR_TLS_REQD as fatal; but as the protocol eventually gets us
to a command where we can't continue onwards, the changed error
message doesn't cause any security concerns.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190824172813.29720-3-eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
[eblake: fix iotest 233]
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Thanks to our recent move to use glib's g_autofree, I can join the
bandwagon. Getting rid of gotos is fun ;)
There are probably more places where we could register cleanup
functions and get rid of more gotos; this patch just focuses on the
labels that existed merely to call g_free.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190824172813.29720-2-eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
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The NBD specification defines NBD_FLAG_CAN_MULTI_CONN, which can be
advertised when the server promises cache consistency between
simultaneous clients (basically, rules that determine what FUA and
flush from one client are able to guarantee for reads from another
client). When we don't permit simultaneous clients (such as qemu-nbd
without -e), the bit makes no sense; and for writable images, we
probably have a lot more work before we can declare that actions from
one client are cache-consistent with actions from another. But for
read-only images, where flush isn't changing any data, we might as
well advertise multi-conn support. What's more, advertisement of the
bit makes it easier for clients to determine if 'qemu-nbd -e' was in
use, where a second connection will succeed rather than hang until the
first client goes away.
This patch affects qemu as server in advertising the bit. We may want
to consider patches to qemu as client to attempt parallel connections
for higher throughput by spreading the load over those connections
when a server advertises multi-conn, but for now sticking to one
connection per nbd:// BDS is okay.
See also: https://bugzilla.redhat.com/1708300
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20190815185024.7010-1-eblake@redhat.com>
[eblake: tweak blockdev-nbd.c to not request shared when writable,
fix iotest 233]
Reviewed-by: John Snow <jsnow@redhat.com>
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'remotes/huth-gitlab/tags/pull-request-2019-09-05-v2' into staging
- Make the core libqtest library independent from global_qtest
- Clean up docs from hard-coded qemu-system-* names
- Install libattr-dev and libcap-dev in gitlab-ci to test virtio-9p
# gpg: Signature made Thu 05 Sep 2019 15:52:30 BST
# gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* remotes/huth-gitlab/tags/pull-request-2019-09-05-v2:
gitlab-ci.yml: Install libattr-devel and libcap-devel to test virtio-9p
qemu-doc: Do not hard-code the name of the QEMU binary
tests/vm: Take the J=x setting into account for the vm-boot-ssh targets, too
tests/libqtest: Use libqtest-single.h in tests that require global_qtest
tests/libqtest: Move global_test wrapper function into a separate header
tests: Remove unnecessary global_qtest references
tests/libqos: Replace clock_step with qtest_clock_step in virtio code
tests/libqos/e1000e: Make e1000e libqos functions independent from global_qtest
tests/migration: Do not use functions anymore that rely on global_qtest
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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So far the gitlab-ci was not testing virtio-9p yet, since we did not
install libattr-devel and libcap-devel in any of the pipelines. Do
it now to get some more test coverage.
Message-Id: <20190905111729.1197-1-thuth@redhat.com>
Acked-by: Greg Kurz <groug@kaod.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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In our documentation, we use a mix of "$QEMU", "qemu-system-i386" and
"qemu-system-x86_64" when we give examples to the users how to run
QEMU. Some more consistency would be good here. Also some distributions
use different names for the QEMU binary (e.g. "qemu-kvm" in RHEL), so
providing more flexibility here would also be good. Thus let's define
some variables for the names of the QEMU command and use those in the
documentation instead: @value{qemu_system} for generic examples, and
@value{qemu_system_x86} for examples that only work with the x86
binaries.
Message-Id: <20190828093447.12441-1-thuth@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Miroslav Rezanina <mrezanin@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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For testing whether the VMs can deal with multiple CPUs correctly,
it is useful to be able to use the "J=<cpus>" setting for the
vm-boot-ssh targets, too.
Message-Id: <20190726100207.19112-1-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Tests that require global_qtest or the related wrapper functions now
use the libqtest-single.h header that is dedicated for everything
related to global_qtest. The core libqtest.c and libqtest.h files are
now completely indepedent from global_qtest, so that the core library
is now not depending on a global state anymore.
Message-Id: <20190904130047.25808-7-thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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We want libqtest.h to become completely independent from global_qtest
(so that the wrapper functions are not used by accident anymore). As
a first step, move the wrapper functions into a separate header file.
The new header is only included from libqtest.h for now, so that there
is no difference to the users of libqtest.h yet. In the next patch, we
will switch this, so that the users of the global_qtest-related
functions will be using libqtest-single.h directly and libqtest.h
becomes completely independent of this.
Message-Id: <20190904130047.25808-6-thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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We are going to remove global_qtest from the main libqtest library
soon, so tests that do not urgently need global_qtest anymore
should be cleaned from the unnecessary references.
Message-Id: <20190904130047.25808-5-thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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Library functions should not rely on functions that require global_qtest
(since they might get used in tests that deal with multiple states).
Commit 1999a70a05ad603d ("Make generic virtio code independent from
global_qtest") already tried to clean the libqos virtio code, but I
missed to replace the clock_step() function. Thus change it now to
qtest_clock_step() instead.
The logic of the qvirtio_wait_config_isr() function is now pushed
to the virtio-mmio.c and virtio-pci.c files instead, since we can
get the QTestState here easily.
Message-Id: <20190904130047.25808-4-thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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libqos library functions should never depend on functions (like memread(),
memwrite() or clock_step()) that require global_qtest to be set, since
library functions might get used in qtests that track multiple states, too.
Thus let's replace the global_qtest-related functions with their independent
counterparts.
Message-Id: <20190904130047.25808-3-thuth@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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The migration tests deal with multiple test states, so we really should
not use functions here that rely on the single global_qtest variable.
Switch from qtest_start() to qtest_init() to make sure that global_qtest
is not set anymore. This also revealed a regression in the migrate()
function: It has once been converted to use the qtest_qmp() function,
but commit b5bbd3f315d686bd511 ("Clean up string interpolation into QMP,
part 2") accidentally reverted it back to qmp().
Message-Id: <20190904130047.25808-2-thuth@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
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staging
docs: add docs about use of automatic cleanup functions
This is ostensibly about adding docs for the g_autofree/g_autoptr
macros. As part of doing that, however, the existing HACKING doc
is merged into the CODING_STYLE doc and the text is converted to
rst with a table of contents.
# gpg: Signature made Thu 05 Sep 2019 14:43:44 BST
# gpg: using RSA key DAF3A6FDB26B62912D0E8E3FBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [full]
# gpg: aka "Daniel P. Berrange <berrange@redhat.com>" [full]
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E 8E3F BE86 EBB4 1510 4FDF
* remotes/berrange/tags/docs-pull-request:
docs: split the CODING_STYLE doc into distinct groups
docs: document use of automatic cleanup functions in glib
docs: merge HACKING.rst contents into CODING_STYLE.rst
docs: convert README, CODING_STYLE and HACKING to RST syntax
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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Document the use of g_autofree and g_autoptr in glib for automatic
freeing of memory.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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The split of information between the two docs is rather arbitary and
unclear. It is simpler for contributors if all the information is in
one file.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
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There are only two remaining uses of gen_bx_im. In each case, we
know the destination mode -- not changing in the case of gen_jmp
or changing in the case of trans_BLX_i. Use this to simplify the
surrounding code.
For trans_BLX_i, use gen_jmp for the actual branch. For gen_jmp,
use gen_set_pc_im to set up the single-step.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-70-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Now that everything is converted, remove the rest of
the legacy decode.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-69-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-68-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-67-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-66-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-65-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-64-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-63-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-62-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Now that all callers pass a constant value, split the switch
statement into the individual trans_* functions.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190904193059.26202-61-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20190904193059.26202-60-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-59-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Add a check for ARMv6 in trans_CPS. We had this correct in
the T16 path, but had previously forgotten the check on the
A32 and T32 paths.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-58-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-57-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20190904193059.26202-56-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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