Commit Graph

59170 Commits

Author SHA1 Message Date
Richard Henderson
4ff55bcb0e target/arm: Handle SVE registers when using clear_vec_high
When storing to an AdvSIMD FP register, all of the high
bits of the SVE register are zeroed.  Therefore, call it
more often with is_q as a parameter.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180211205848.4568-6-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-15 18:29:49 +00:00
Richard Henderson
490aa7f13a target/arm: Enforce access to ZCR_EL at translation
This also makes sure that we get the correct ordering of
SVE vs FP exceptions.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180211205848.4568-5-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-15 18:29:48 +00:00
Richard Henderson
b916c9c35c target/arm: Suppress TB end for FPCR/FPSR
Nothing in either register affects the TB.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180211205848.4568-4-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-15 18:29:48 +00:00
Richard Henderson
fe03d45f9e target/arm: Enforce FP access to FPCR/FPSR
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180211205848.4568-3-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-15 18:29:48 +00:00
Richard Henderson
5d1e699988 target/arm: Remove ARM_CP_64BIT from ZCR_EL registers
Because they are ARM_CP_STATE_AA64, ARM_CP_64BIT is implied.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20180211205848.4568-2-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-15 18:29:48 +00:00
Philippe Mathieu-Daudé
c7c3c9f8d0 hw/arm/aspeed: simplify using the 'unimplemented device' for aspeed_soc.io
(qemu) info mtree
 address-space: cpu-memory-0
   0000000000000000-ffffffffffffffff (prio 0, i/o): system
     0000000000000000-0000000007ffffff (prio 0, rom): aspeed.boot_rom
-    000000001e600000-000000001e7fffff (prio -1, i/o): aspeed_soc.io
+    000000001e600000-000000001e7fffff (prio -1000, i/o): aspeed_soc.io
     000000001e620000-000000001e6200ff (prio 0, i/o): aspeed.smc.ast2500-fmc
     000000001e630000-000000001e6300ff (prio 0, i/o): aspeed.smc.ast2500-spi1
     000000001e631000-000000001e6310ff (prio 0, i/o): aspeed.smc.ast2500-spi2

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 20180209085755.30414-3-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-15 18:29:36 +00:00
Philippe Mathieu-Daudé
022d72d0b1 hw/arm/aspeed: directly map the serial device to the system address space
(qemu) info mtree
 address-space: cpu-memory-0
   0000000000000000-ffffffffffffffff (prio 0, i/o): system
     0000000000000000-0000000007ffffff (prio 0, rom): aspeed.boot_rom
     000000001e600000-000000001e7fffff (prio -1, i/o): aspeed_soc.io
-      000000001e784000-000000001e78401f (prio 0, i/o): serial
     000000001e620000-000000001e6200ff (prio 0, i/o): aspeed.smc.ast2500-fmc
     000000001e630000-000000001e6300ff (prio 0, i/o): aspeed.smc.ast2500-spi1
     [...]
     000000001e720000-000000001e728fff (prio 0, ram): aspeed.sram
     000000001e782000-000000001e782fff (prio 0, i/o): aspeed.timer
+    000000001e784000-000000001e78401f (prio 0, i/o): serial
     000000001e785000-000000001e78501f (prio 0, i/o): aspeed.wdt
     000000001e785020-000000001e78503f (prio 0, i/o): aspeed.wdt

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 20180209085755.30414-2-f4bug@amsat.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-15 18:29:36 +00:00
Jan Beulich
6809df1df0 allow to build with older sed
sed's -E option may not be supported by older distros. As there's no
point using sed here at all, use just shell mechanisms to establish the
variable values, starting from the stem instead of the full target.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-02-15 16:54:57 +00:00
Thomas Huth
fe823b6f87 io/channel-command: Do not kill the child process after closing the pipe
We are currently facing some migration failure on s390x when running
certain avocado-vt tests, e.g. when running the test
type_specific.io-github-autotest-qemu.migrate.with_reboot.exec.gzip_exec.
This test is using 'migrate -d "exec:nc localhost 5200"' for the migration.
The problem is detected at the receiving side, where the migration stream
apparently ends too early. However, the cause for the problem is at the
sending side: After writing the migration stream into the pipe to netcat,
the source QEMU calls qio_channel_command_close() which closes the pipe
and immediately (!) kills the child process afterwards (via the function
qio_channel_command_abort()). So if the  sending netcat did not read the
final bytes from the pipe yet, or  if it did not manage to send out all
its buffers yet, it is killed before the whole migration stream is passed
to the destination side.

QEMU can not know how much time is required by the child process to send
over all migration data, so we should not kill it, neither directly nor
after a delay. Let's simply wait for the child process to exit gracefully
instead (this was also the behaviour of pclose() that was used in "exec:"
migration before the QIOChannel rework).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2018-02-15 16:54:57 +00:00
Ross Lagerwall
b8f244b13c io: Add /dev/fdset/ support to QIOChannelFile
Add /dev/fdset/ support to QIOChannelFile by calling qemu_open() instead
of open() and qemu_close() instead of close(). There is a subtle
semantic change since qemu_open() automatically sets O_CLOEXEC, but this
doesn't affect any of the users of the function.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-02-15 16:54:57 +00:00
Ross Lagerwall
a2565df12c io: Don't call close multiple times in QIOChannelFile
If the file descriptor underlying QIOChannelFile is closed in the
io_close() method, don't close it again in the finalize() method since
the file descriptor number may have been reused in the meantime.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-02-15 16:54:57 +00:00
Ross Lagerwall
902f6e14fc io: Fix QIOChannelFile when creating and opening read-write
The code wrongly passes the mode to open() only if O_WRONLY is set.
Instead, the mode should be passed when O_CREAT is set (or O_TMPFILE on
Linux). Fix this by always passing the mode since open() will correctly
ignore the mode if it is not needed. Add a testcase which exercises this
bug and also change the existing testcase to check that the mode of the
created file is correct.

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-02-15 16:54:57 +00:00
Edgar Kaziakhmedov
a46ded1de5 io/channel-websock: handle continuous reads without any data
According to the current implementation of websocket protocol in QEMU,
qio_channel_websock_handshake_io tries to read handshake from the
channel to start communication over socket. But this approach
doesn't cover scenario when socket was closed while handshaking.
Therefore, if G_IO_IN is caught and qio_channel_read returns zero,
error has to be set and connection has to be done.

Such behaviour causes 100% CPU load in main QEMU loop, because main loop
poll continues to receive and handle G_IO_IN events from websocket.

Step to reproduce 100% CPU load:
1) start qemu with the simplest configuration
$ qemu -vnc [::1]:1,websocket=7500
2) open any vnc listener (which doesn't follow websocket
protocol)
$ vncviewer :7500
3) kill listener
4) qemu main thread eats 100% CPU

Signed-off-by: Edgar Kaziakhmedov <edgar.kaziakhmedov@virtuozzo.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-02-15 16:54:57 +00:00
Paolo Bonzini
28bb0a59f8 io: fix QIONetListener memory leak
The sources array does not escape out of qio_net_listener_wait_client, so
we have to free it.

Reported by Coverity.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2018-02-15 16:54:57 +00:00
Peter Maydell
f003d07337 Pull request
v2:
  * Dropped Fam's git-publish series because there is still ongoing discussion
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

v2:
 * Dropped Fam's git-publish series because there is still ongoing discussion

# gpg: Signature made Thu 15 Feb 2018 09:42:03 GMT
# gpg:                using RSA key 9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  misc: fix spelling
  ratelimit: don't align wait time with slices
  vl: pause vcpus before stopping iothreads

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-15 15:45:33 +00:00
Peter Maydell
8c5e7bddc2 Various improvements to the qtest checks:
- Clean-ups by Eric Blake with regards to the global_qtest variable
 - Some more test cases for the boot-serial tester
 - Re-activation of the m48t59-test
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Merge remote-tracking branch 'remotes/huth/tags/pull-request-2018-02-14' into staging

Various improvements to the qtest checks:
- Clean-ups by Eric Blake with regards to the global_qtest variable
- Some more test cases for the boot-serial tester
- Re-activation of the m48t59-test

# gpg: Signature made Wed 14 Feb 2018 11:07:44 GMT
# gpg:                using RSA key 2ED9D774FE702DB5
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>"
# gpg:                 aka "Thomas Huth <thuth@redhat.com>"
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>"
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>"
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/huth/tags/pull-request-2018-02-14:
  tests/m48t59: Use the m48t59 test on ppc, too
  tests/Makefile: Derive check-qtest-ppc64-y from check-qtest-ppc-y
  tests/m48t59: Make the test independent of global_qtest
  tests/m48t59: Fix and re-enable the test for sparc
  tests/boot-serial-test: Add support for the aarch64 virt machine
  tests/boot-serial: Add tests for PowerPC Mac machines
  tests/boot-serial: Enable the boot-serial test on SPARC machines, too
  wdt_ib700-test: Drop dependence on global_qtest
  tests/boot-sector: Drop dependence on global_qtest
  qmp-test: Drop dependence on global_qtest
  libqos: Use explicit QTestState for remaining libqos operations
  libqos: Use explicit QTestState for ahci operations
  libqos: Use explicit QTestState for i2c operations
  libqos: Use explicit QTestState for rtas operations
  libqos: Use explicit QTestState for fw_cfg operations
  libqos: Track QTestState with QPCIBus
  libqtest: Use qemu_strtoul()
  tests: Clean up wait for event

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-15 13:00:44 +00:00
Peter Maydell
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Merge remote-tracking branch 'remotes/vivier/tags/m68k-for-2.12-pull-request' into staging

# gpg: Signature made Wed 14 Feb 2018 10:37:02 GMT
# gpg:                using RSA key F30C38BD3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>"
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier/tags/m68k-for-2.12-pull-request:
  m68k: implement movep instruction

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-15 10:14:11 +00:00
Marc-André Lureau
d2f668b749 misc: fix spelling
s/pupulate/populate

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20180208162447.10851-1-marcandre.lureau@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-02-15 09:39:49 +00:00
Wolfgang Bumiller
b7728f3221 ratelimit: don't align wait time with slices
It is possible for rate limited writes to keep overshooting a slice's
quota by a tiny amount causing the slice-aligned waiting period to
effectively halve the rate.

Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Message-id: 20180207071758.6818-1-w.bumiller@proxmox.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-02-15 09:39:49 +00:00
Stefan Hajnoczi
00d09fdbba vl: pause vcpus before stopping iothreads
Commit dce8921b2b ("iothread: Stop threads
before main() quits") introduced iothread_stop_all() to avoid the
following virtio-scsi assertion failure:

  assert(blk_get_aio_context(d->conf.blk) == s->ctx);

Back then the assertion failed because when bdrv_close_all() made
d->conf.blk NULL, blk_get_aio_context() returned the global AioContext
instead of s->ctx.

The same assertion can still fail today when vcpus submit new I/O
requests after iothread_stop_all() has moved the BDS to the global
AioContext.

This patch hardens the iothread_stop_all() approach by pausing vcpus
before calling iothread_stop_all().

Note that the assertion failure is a race condition.  It is not possible
to reproduce it reliably.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20180201110708.8080-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2018-02-15 09:39:49 +00:00
Thomas Huth
02f4fbecb9 tests/m48t59: Use the m48t59 test on ppc, too
The ref405ep machine has a memory-mapped m48t59 device, so
we can run the m48t59 test on this machine, too.

Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:42 +01:00
Thomas Huth
9697ce405f tests/Makefile: Derive check-qtest-ppc64-y from check-qtest-ppc-y
ppc64 is a superset of ppc, so the ppc64 tests should include all
the ppc tests.

Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:42 +01:00
Thomas Huth
7cbe423c23 tests/m48t59: Make the test independent of global_qtest
Stop using the functions that require global_qtest here and pass
around the QTestState instead (global_qtest should finally get
removed since this causes problems with tests running in parallel).

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:42 +01:00
Thomas Huth
9c29830c90 tests/m48t59: Fix and re-enable the test for sparc
The m48t59 test has been disabled in commit baeddded5f
("sparc: disable qtest in make check"), likely due to some timing issues
in the bcd_check_time tests which might fail if it gets interrupted for
too long. It should be OK to re-enable this test if we make sure that we
do not run it on timing-sensitive machines, thus it should be OK if we only
run it in the g_test_slow() mode.

Additionally, there are two other issues:

First, the test can not run so easily on sparc64 anymore, since commit
f3b18f35a2 ("sun4u: switch m48t59 NVRAM to MMIO access")
moved the m48t59 device to the ebus instead, and for this you first
have to set up the corresponding PCI device (which is currently not
possible from within the m48t59 test). So we can only re-enable this
test on sparc, but not the sparc64 target.

Second, the fuzzing test is executed before the bcd-check-time test
(due to the naming of the tests), without having the base address set
up properly, so the fuzzing test does not really check anything at all.
Fix it by setting up the base address from the main function already
and by moving the qtest_start() to the tests themselves, so that each
test starts with a clean environment (since after the fuzzing, the clock
is unusable for the bcd-check-time test).

Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:42 +01:00
Wei Huang
ec2e988fce tests/boot-serial-test: Add support for the aarch64 virt machine
This patch adds a small binary kernel to test aarch64 virt machine's
UART.

Signed-off-by: Wei Huang <wei@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[thuth: Fixed contextual conflicts with the hppa and sdhci patches]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:42 +01:00
Thomas Huth
d3d4f757d3 tests/boot-serial: Add tests for PowerPC Mac machines
OpenBIOS prints out the CPU type on these machine types, so we can use
this string to test whether the CPU detection is working correctly.

Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:42 +01:00
Thomas Huth
e74fbf1f58 tests/boot-serial: Enable the boot-serial test on SPARC machines, too
OpenBIOS prints out the name of the detected CPU here, so looking for
this string is a nice test to verify that the CPU detection is still
working correctly.

Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:42 +01:00
Eric Blake
db57d7a3c2 wdt_ib700-test: Drop dependence on global_qtest
As a general rule, we prefer avoiding implicit global state
because it makes code harder to safely copy and paste without
thinking about the global state.  Improve this test to be
explicit about the state.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:42 +01:00
Eric Blake
8b19f2b77e tests/boot-sector: Drop dependence on global_qtest
As a general rule, we prefer avoiding implicit global state
because it makes code harder to safely copy and paste without
thinking about the global state.  Adjust the helper code to
use explicit state instead, and update all callers.

Fix some trailing whitespace while touching the file.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:41 +01:00
Eric Blake
6a5c88f572 qmp-test: Drop dependence on global_qtest
As a general rule, we prefer avoiding implicit global state
because it makes code harder to safely copy and paste without
thinking about the global state.  Although qmp-test does not
maintain parallel qtest connections, it was the last test
assigning to global_qtest.  It's just as easy to be explicit
about the state; once all tests have been cleaned up, a later
patch can then get rid of global_qtest and a layer of wrappers
in libqtest.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:41 +01:00
Eric Blake
3d95fb9770 libqos: Use explicit QTestState for remaining libqos operations
Drop one more client of global_qtest by teaching all remaining
libqos stragglers to pass in an explicit QTestState.  Change the
setting of global_qtest from being implicit in libqos' call to
qtest_start() to instead be explicit in all clients that are
still relying on global_qtest.

Note that qmp_execute() can be greatly simplified in the process,
and that we also get rid of interpolation of a JSON string into a
temporary variable when qtest_qmp() can do it more reliably.

Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Greg Kurz <groug@kaod.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:41 +01:00
Eric Blake
10747e55d5 libqos: Use explicit QTestState for ahci operations
Drop one more client of global_qtest by teaching all ahci test
functionality to pass in an explicit QTestState.  The state was
already available, so no callers had to be adjusted.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:41 +01:00
Eric Blake
f1dfd50732 libqos: Use explicit QTestState for i2c operations
Drop one more client of global_qtest by teaching all i2c test
functionality to pass in an explicit QTestState, adjusting all
callers.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:41 +01:00
Eric Blake
9b67af76db libqos: Use explicit QTestState for rtas operations
Drop one more client of global_qtest by teaching all rtas test
functionality to pass in an explicit QTestState, adjusting all
callers.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
[thuth: Use nicer indentation in rtas.h]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:41 +01:00
Eric Blake
05e520f1c7 libqos: Use explicit QTestState for fw_cfg operations
Drop one more client of global_qtest by teaching all fw_cfg test
functionality (invoked through alloc-pc) to pass in an explicit
QTestState, adjusting all callers.  In particular, fw_cfg-test
had to reorder things to create the test state prior to creating
the fw_cfg (and drop a pointless strdup in the meantime), but that
test now no longer depends on global_qtest.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
[thuth: Fixed conflict wrt pc_alloc_init() in vhost-user-test.c]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:41 +01:00
Eric Blake
e5d1730d1e libqos: Track QTestState with QPCIBus
When initializing a QPCIBus, track which QTestState the bus is
associated with (so that a later patch can then explicitly use
that test state for all communication on the bus, rather than
blindly relying on global_qtest).  Update the initialization
functions to take another parameter, and update all callers to
pass in state (for now, most callers get away with passing the
current global_qtest as the current state, although this required
fixing the order of initialization to ensure qtest_start() is
called before qpci_init*() in rtl8139-test, and provided an
opportunity to pass in the allocator in e1000e-test).

Touch up some allocations to use g_new0() rather than g_malloc()
while in the area, and simplify some code (all implementations
of QOSOps provide a .init_allocator() that never fails).

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
[thuth: Removed hunk from vhost-user-test.c that is not required anymore,
 fixed conflict in qtest_vboot() and adjusted qpci_init_pc() in sdhci-test]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 11:43:02 +01:00
Peter Xu
3e0c8050eb migration: pass MigrationState to migrate_init()
Let the callers take the object, then pass it to migrate_init().

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180208103132.28452-12-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-02-14 10:37:09 +00:00
Peter Xu
d6208e35e4 migration: allow send_rq to fail
We will not allow failures to happen when sending data from destination
to source via the return path. However it is possible that there can be
errors along the way.  This patch allows the migrate_send_rp_message()
to return error when it happens, and further extended it to
migrate_send_rp_req_pages().

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180208103132.28452-9-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-02-14 10:36:52 +00:00
Peter Xu
9ab7ef9b66 migration: provide postcopy_fault_thread_notify()
A general helper to notify the fault thread.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180208103132.28452-4-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-02-14 10:36:02 +00:00
Peter Xu
64f615fe34 migration: reuse mis->userfault_quit_fd
It was only used for quitting the page fault thread before. Let it be
something more useful - now we can use it to notify a "wake" for the
page fault thread (for any reason), and it only means "quit" if the
fault_thread_quit is set.

Since we changed what it does, renaming it to userfault_event_fd.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180208103132.28452-3-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-02-14 10:35:45 +00:00
Peter Xu
7a9ddfbfae migration: better error handling with QEMUFile
If the postcopy down due to some reason, we can always see this on dst:

  qemu-system-x86_64: RP: Received invalid message 0x0000 length 0x0000

However in most cases that's not the real issue. The problem is that
qemu_get_be16() has no way to show whether the returned data is valid or
not, and we are _always_ assuming it is valid. That's possibly not wise.

The best approach to solve this would be: refactoring QEMUFile interface
to allow the APIs to return error if there is. However it needs quite a
bit of work and testing. For now, let's explicitly check the validity
first before using the data in all places for qemu_get_*().

This patch tries to fix most of the cases I can see. Only if we are with
this, can we make sure we are processing the valid data, and also can we
make sure we can capture the channel down events correctly.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180208103132.28452-2-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-02-14 10:34:56 +00:00
Dr. David Alan Gilbert
2c9bb29703 tests/migration: Add test for migration to bad destination
Check the source survives.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20180212160340.15333-3-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2018-02-14 10:31:04 +00:00
Dr. David Alan Gilbert
b9ccaf6d74 migration: Fix early failure cleanup
Avoid crash in cleanup after a very early migration failure
(possibly due to my 688a3dcba9  'Route errors down ...')

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20180212160340.15333-2-dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
2018-02-14 10:31:01 +00:00
Dr. David Alan Gilbert
17ca7746d7 tests/migration: Add source to PC boot block
The boot block used in the migration test is currently only
shipped as a hex (with the source in the git commit message of ea0c6d62),
change this to actually include the source.

A script is added to rebuild the header but the expectation is that
the generated hex is shipped as well as the .s, so that
there's no requirement to have just the right assembler etc.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20180213100606.5379-1-dgilbert@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  Removed blank line at end of script
2018-02-14 10:26:21 +00:00
Greg Kurz
c2eb7f213a migration: improve documentation of postcopy-ram
This capability must have the same value on both source and destination,
otherwise migration fails (commit 875fcd013a "migration: incoming
postcopy advise sanity checks").

Let's write it down in various places where postcopy-ram is documented.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <151801810352.29167.4832480228518630626.stgit@bahia.lan>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-02-14 10:23:15 +00:00
Ross Lagerwall
96994fd1e4 migration/xen: Check return value of qemu_fclose
QEMUFile uses buffered IO so when writing small amounts (such as the Xen
device state file), the actual write call and any errors that may occur
only happen as part of qemu_fclose(). Therefore, report IO errors when
saving the device state under Xen by checking the return value of
qemu_fclose().

Signed-off-by: Ross Lagerwall <ross.lagerwall@citrix.com>
Message-Id: <20180206163039.23661-1-ross.lagerwall@citrix.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-02-14 10:18:42 +00:00
Pavel Dovgalyuk
1226e21229 m68k: implement movep instruction
This patch implements movep instruction. It moves data between a data register
and alternate bytes within the address space starting at the location
specified and incrementing by two.

It was designed for the original 68000 and used in firmwares for
interfacing the 8-bit peripherals through the 16-bit data bus.
Without this patch opcode for this instruction is recognized as some bitop.

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Mihail Abakumov <mikhail.abakumov@ispras.ru>
Tested-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20180206124431.31433.91946.stgit@pasha-VirtualBox>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2018-02-14 11:09:13 +01:00
Eric Blake
50990b162c libqtest: Use qemu_strtoul()
This will keep checkpatch happy when the next patch does code motion.
Fix the include order to match HACKING when adding the needed header.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 10:08:41 +01:00
Markus Armbruster
2c58c27bee tests: Clean up wait for event
We still use hacks like qmp("") to wait for an event, even though we
have qmp_eventwait() since commit 8fe941f, and qmp_eventwait_ref()
since commit 7ffe312.  Both commits neglected to convert all the
existing hacks.  Make up what they missed.

Bonus: gets rid of empty format strings.  A step towards compile-time
format string checking without triggering -Wformat-zero-length.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
[thuth: dropped the hunks from the usb tests - not needed anymore]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-02-14 10:08:40 +01:00
Peter Maydell
685a4eaf6d Block layer patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Tue 13 Feb 2018 17:03:11 GMT
# gpg:                using RSA key 7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream: (55 commits)
  iotests: Add l2-cache-entry-size to iotest 137
  iotests: Test downgrading an image using a small L2 slice size
  iotests: Test valid values of l2-cache-entry-size
  qcow2: Allow configuring the L2 slice size
  qcow2: Rename l2_table in count_cow_clusters()
  qcow2: Rename l2_table in count_contiguous_clusters_unallocated()
  qcow2: Rename l2_table in count_contiguous_clusters()
  qcow2: Rename l2_table in qcow2_alloc_compressed_cluster_offset()
  qcow2: Update qcow2_truncate() to support L2 slices
  qcow2: Update expand_zero_clusters_in_l1() to support L2 slices
  qcow2: Prepare expand_zero_clusters_in_l1() for adding L2 slice support
  qcow2: Read refcount before L2 table in expand_zero_clusters_in_l1()
  qcow2: Update qcow2_update_snapshot_refcount() to support L2 slices
  qcow2: Prepare qcow2_update_snapshot_refcount() for adding L2 slice support
  qcow2: Update zero_single_l2() to support L2 slices
  qcow2: Update discard_single_l2() to support L2 slices
  qcow2: Update handle_alloc() to support L2 slices
  qcow2: Update handle_copied() to support L2 slices
  qcow2: Update qcow2_alloc_cluster_link_l2() to support L2 slices
  qcow2: Update qcow2_get_cluster_offset() to support L2 slices
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-02-13 19:57:46 +00:00