The legacy command line interface gets the socket path from an option
called 'socket'. QAPI in contract uses SocketAddress, where the
corresponding option is called 'path'.
Fix the gluster block driver to accept both 'socket' and 'path', with
'path' being the preferred syntax.
https://bugzilla.redhat.com/show_bug.cgi?id=1545155
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 20180403110810.25624-1-kwolf@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
QAPI generator provide #define helpers for looking up enum string.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20180327153011.29569-1-marcandre.lureau@redhat.com
Signed-off-by: Jeff Cody <jcody@redhat.com>
This fixes leaks found by ASAN such as:
GTESTER tests/test-blockjob
=================================================================
==31442==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 24 byte(s) in 1 object(s) allocated from:
#0 0x7f88483cba38 in __interceptor_calloc (/lib64/libasan.so.4+0xdea38)
#1 0x7f8845e1bd77 in g_malloc0 ../glib/gmem.c:129
#2 0x7f8845e1c04b in g_malloc0_n ../glib/gmem.c:360
#3 0x5584d2732498 in block_job_txn_new /home/elmarco/src/qemu/blockjob.c:172
#4 0x5584d2739b28 in block_job_create /home/elmarco/src/qemu/blockjob.c:973
#5 0x5584d270ae31 in mk_job /home/elmarco/src/qemu/tests/test-blockjob.c:34
#6 0x5584d270b1c1 in do_test_id /home/elmarco/src/qemu/tests/test-blockjob.c:57
#7 0x5584d270b65c in test_job_ids /home/elmarco/src/qemu/tests/test-blockjob.c:118
#8 0x7f8845e40b69 in test_case_run ../glib/gtestutils.c:2255
#9 0x7f8845e40f29 in g_test_run_suite_internal ../glib/gtestutils.c:2339
#10 0x7f8845e40fd2 in g_test_run_suite_internal ../glib/gtestutils.c:2351
#11 0x7f8845e411e9 in g_test_run_suite ../glib/gtestutils.c:2426
#12 0x7f8845e3fe72 in g_test_run ../glib/gtestutils.c:1692
#13 0x5584d270d6e2 in main /home/elmarco/src/qemu/tests/test-blockjob.c:377
#14 0x7f8843641f29 in __libc_start_main (/lib64/libc.so.6+0x20f29)
Add an assert to make sure that the job doesn't have associated txn before free().
[Jeff Cody: N.B., used updated patch provided by John Snow]
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
This series includes changes that are considered release critical,
such as floating point register file corruption under SMP Linux
due to incorrect handling of mstatus.FS.
This workaround will be replaced with a more comprehensive fix
for mstatus.FS handling in QEMU 2.13.
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Merge remote-tracking branch 'remotes/riscv/tags/riscv-qemu-2.12-critical-fixes' into staging
RISC-V: Critical fixes for QEMU 2.12
This series includes changes that are considered release critical,
such as floating point register file corruption under SMP Linux
due to incorrect handling of mstatus.FS.
This workaround will be replaced with a more comprehensive fix
for mstatus.FS handling in QEMU 2.13.
# gpg: Signature made Thu 29 Mar 2018 18:22:42 BST
# gpg: using DSA key 6BF1D7B357EF3E4F
# gpg: Good signature from "Michael Clark <michaeljclark@mac.com>"
# gpg: aka "Michael Clark <mjc@sifive.com>"
# gpg: aka "Michael Clark <michael@metaparadigm.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 7C99 930E B17C D8BA 073D 5EFA 6BF1 D7B3 57EF 3E4F
* remotes/riscv/tags/riscv-qemu-2.12-critical-fixes:
RISC-V: Workaround for critical mstatus.FS bug
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Version: GnuPG v1
iQEcBAABAgAGBQJavbPWAAoJEO8Ells5jWIRC/IH/ieddmow/vzIPzxuNdrtBQjP
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
# gpg: Signature made Fri 30 Mar 2018 04:49:42 BST
# gpg: using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* remotes/jasowang/tags/net-pull-request:
qemu-doc: Rework the network options chapter to make "-net" less prominent
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/stefanberger/tags/pull-tpm-2018-03-29-1' into staging
Merge tpm 2018/03/29 v1
# gpg: Signature made Fri 30 Mar 2018 01:04:47 BST
# gpg: using RSA key 75AD65802A0B4211
# gpg: Good signature from "Stefan Berger <stefanb@linux.vnet.ibm.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: B818 B9CA DF90 89C2 D5CE C66B 75AD 6580 2A0B 4211
* remotes/stefanberger/tags/pull-tpm-2018-03-29-1:
tests: Tests more flags of the CRB interface
tpm: CRB: Enforce locality is requested before processing buffer
tpm: CRB: Reset Granted flag when relinquishing locality
tpm: CRB: set the Idle flag by default
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
A pair of two small fixes for 2.12.
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i3PiHDf/qeE+82xFhRHh
=6vyj
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Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20180329a' into staging
Migration pull (small fixes)
A pair of two small fixes for 2.12.
# gpg: Signature made Thu 29 Mar 2018 14:55:17 BST
# gpg: using RSA key 0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>"
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A 9FA9 0516 331E BC5B FDE7
* remotes/dgilbert/tags/pull-migration-20180329a:
migration: Don't activate block devices if using -S
migration: fix pfd leak
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
"-net" is clearly a legacy option. Yet we still use it in almost all
examples in the qemu documentation, and many other spots in the network
chapter. We should make it less prominent that users are not lured into
using it so often anymore. So instead of starting the network chapter with
"-net nic" and documenting "-net <backend>" below "-netdev <backend>"
everywhere, all the "-net" related documentation is now moved to the end
of the chapter. The new "-nic" option is moved to the beginning of the
chapter instead, with a new example that should demonstrate how "-nic"
can be used to shortcut "-device" with "-netdev". The examples in this
chapter are changed to use the "-device" and "-netdev" options or
"-nic" instead of "-net nic -net <backend>".
While we're at it, also remove a legacy remark about very old Linux
distributions. Also remove the "[...]" from the examples in this chapter
since we are not using this ellipsis in any other examples in our docu-
mentation.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Test and modify more flags of the CRB interface.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Section 5.5.3.2.2 of the CRB specs states that use of the TPM
through the localty control method must first be requested,
otherwise the command will be dropped.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reset the Granted flag when relinquishing a locality.
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
This change is a workaround for a bug where mstatus.FS
is not correctly reporting dirty after operations that
modify floating point registers. This a critical bug
or RISC-V in QEMU as it results in floating point
register file corruption when running SMP Linux due to
task migration and possibly uniprocessor Linux if
more than one process is using the FPU.
This workaround will return dirty if mstatus.FS is
switched from off to initial or clean. According to
the specification it is legal for an implementation
to return only off, or dirty.
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Alex Bennée <alex.bennee@linaro.org>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Michael Clark <mjc@sifive.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Activating the block devices causes the locks to be taken on
the backing file. If we're running with -S and the destination libvirt
hasn't started the destination with 'cont', it's expecting the locks are
still untaken.
Don't activate the block devices if we're not going to autostart the VM;
'cont' already will do that anyway.
bz: https://bugzilla.redhat.com/show_bug.cgi?id=1560854
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20180328170207.49512-1-dgilbert@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Fix leak spotted by ASAN:
Direct leak of 16 byte(s) in 1 object(s) allocated from:
#0 0x7fe1abb80a38 in __interceptor_calloc (/lib64/libasan.so.4+0xdea38)
#1 0x7fe1aaf1bf75 in g_malloc0 ../glib/gmem.c:124
#2 0x7fe1aaf1c249 in g_malloc0_n ../glib/gmem.c:355
#3 0x55f4841cfaa9 in postcopy_ram_fault_thread /home/elmarco/src/qemu/migration/postcopy-ram.c:596
#4 0x55f48479447b in qemu_thread_start /home/elmarco/src/qemu/util/qemu-thread-posix.c:504
#5 0x7fe1a043550a in start_thread (/lib64/libpthread.so.0+0x750a)
Regression introduced with commit 00fa4fc85b.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180321113644.21899-1-marcandre.lureau@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
This series includes changes that are considered important.
i.e. correct user-visible bugs that are exercised by common
operations such as -cpu list (CPU model changes) or -d in_asm
(fix for disassembly of addiw)
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Merge remote-tracking branch 'remotes/riscv/tags/riscv-qemu-2.12-important-fixes' into staging
RISC-V: Important fixes for QEMU 2.12
This series includes changes that are considered important.
i.e. correct user-visible bugs that are exercised by common
operations such as -cpu list (CPU model changes) or -d in_asm
(fix for disassembly of addiw)
# gpg: Signature made Wed 28 Mar 2018 21:34:57 BST
# gpg: using DSA key 6BF1D7B357EF3E4F
# gpg: Good signature from "Michael Clark <michaeljclark@mac.com>"
# gpg: aka "Michael Clark <mjc@sifive.com>"
# gpg: aka "Michael Clark <michael@metaparadigm.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 7C99 930E B17C D8BA 073D 5EFA 6BF1 D7B3 57EF 3E4F
* remotes/riscv/tags/riscv-qemu-2.12-important-fixes:
RISC-V: Fix incorrect disassembly for addiw
RISC-V: Convert cpu definition to future model
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This fixes a bug in the disassembler constraints used
to lift instructions into pseudo-instructions, whereby
addiw instructions are always lifted to sext.w instead
of just lifting addiw with a zero immediate.
An associated fix has been made to the metadata used to
machine generate the disseasembler:
https://github.com/michaeljclark/riscv-meta/
commit/4a6b2f3898430768acfe201405224d2ea31e1477
Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Palmer Dabbelt <palmer@sifive.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Clark <mjc@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
- Model borrowed from target/sh4/cpu.c
- Rewrote riscv_cpu_list to use object_class_get_list
- Dropped 'struct RISCVCPUInfo' and used TypeInfo array
- Replaced riscv_cpu_register_types with DEFINE_TYPES
- Marked base class as abstract
- Fixes -cpu list
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Sagar Karandikar <sagark@eecs.berkeley.edu>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Michael Clark <mjc@sifive.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Failure to do so results in the tcg optimizer sign-extending
any constant fold from 32-bits. This turns out to be visible
in the RISC-V testsuite using a host that emits these opcodes
(e.g. any non-x86_64).
Reported-by: Michael Clark <mjc@sifive.com>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Since the commit:
commit 4486e89c21
Author: Stefan Hajnoczi <stefanha@redhat.com>
Date: Wed Mar 7 14:42:05 2018 +0000
vl: introduce vm_shutdown()
GDB crashes when qemu exits (at least on sparc-softmmu):
Remote communication error. Target disconnected.: Connection reset by peer.
Quitting: putpkt: write failed: Broken pipe.
So send a packet to exit GDB before we exit QEMU:
[Inferior 1 (Thread 0) exited normally]
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: KONRAD Frederic <frederic.konrad@adacore.com>
Message-id: 1521538773-30802-1-git-send-email-frederic.konrad@adacore.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Commit 137b5cb6 refactored 'info cpus' output, changing
'thread_id' to 'thread-id'. While HMP is not a stable
interface, it is trivial to keep the spelling consistent
for test frameworks that have not yet updated to using QMP.
This patch just reverts back output format to 'thread_id'.
CC: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Signed-off-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Message-Id: <20180327123800.28851-1-sathnaga@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
[eblake: improve commit message]
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Test the new OOB capability. It's mostly the reverted OOB test
(see commit 4fd78ad7), but differs in that:
- It uses the new qtest_init_without_qmp_handshake() parameter to
create the monitor with "x-oob"
- Squashed the capability tests on greeting message
- Don't use qtest_global any more, instead use self-maintained
QTestState, which is the trend
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180326063901.27425-9-peterx@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: rebase to qtest_init changes]
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Allow callers to choose whether to allow OOB support during a test;
for now, all existing callers pass false, but the next patch will
add a new caller. Also, rewrite the monitor setup to be generic
(using the -qmp shorthand is insufficient for honoring the parameter).
Based on an idea by Peter Xu, in <20180326063901.27425-8-peterx@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180327013620.1644387-4-eblake@redhat.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Add new parameter to optionally enable Out-Of-Band for a QMP server.
An example command line:
./qemu-system-x86_64 -chardev stdio,id=char0 \
-mon chardev=char0,mode=control,x-oob=on
By default, Out-Of-Band is off.
It is not allowed if either MUX or non-QMP is detected, since
Out-Of-Band is currently only for QMP, and non-MUX chardev backends.
Note that the client STILL has to request 'oob' during qmp_capabilities;
in part because the x-oob command line option may disappear in the
future if we decide the capabilities negotiation is sufficient.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180326063901.27425-4-peterx@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[eblake: enhance commit message]
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Marc-André Lureau reported that we can have this happen:
1. client1 connects, send command C1
2. client1 disconnects before getting response for C1
3. client2 connects, who might receive response of C1
However client2 should not receive remaining responses for client1.
Basically, we should clean up the request/response queue elements when:
- after a session is closed
- before destroying the queues
Some helpers are introduced to achieve that. We need to make sure we're
with the lock when operating on those queues. This also needed the
declaration of QMPRequest moved earlier.
Reported-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180326063901.27425-3-peterx@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
[eblake: drop pointless qmp_response_free(), drop queue flush on connect
since a clean queue on disconnect is sufficient]
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
It simply tests the new OOB capability, and make sure the QAPISchema can
parse it correctly.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180326063901.27425-7-peterx@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
The allow_oob parameter was passed in but not used in tests. Now
reflect that in the tests, so we need to touch up other command testers
with that new change.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180326063901.27425-6-peterx@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
It was missed in the first version of OOB series. We should check this
to make sure we throw the right error when fault value is passed in.
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180326063901.27425-5-peterx@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
When someone sends a command before QMP handshake, the error used to be
like this:
{"execute": "query-cpus"}
{"error": {"class": "CommandNotFound", "desc":
"Expecting capabilities negotiation with 'qmp_capabilities'"}}
While after cf869d5317 it becomes:
{"execute": "query-cpus"}
{"error": {"class": "CommandNotFound", "desc":
"The command query-cpus has not been found"}}
Fix it back to the nicer one.
Fixes: cf869d5317 ("qmp: support out-of-band (oob) execution", 2018-03-19)
Reported-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180326063901.27425-2-peterx@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: commit message grammar tweaks]
Signed-off-by: Eric Blake <eblake@redhat.com>
Re-run Coccinelle script scripts/coccinelle/err-bad-newline.cocci,
and found new error_report() occurrences with '\n'.
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20180323143202.28879-3-lvivier@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Running 'make check' on rawhide with gcc 8.0.1 fails:
tests/test-visitor-serialization.c: In function 'main':
tests/test-visitor-serialization.c:1127:34: error: '/primitives/' directive writing 12 bytes into a region of size between 1 and 128 [-Werror=format-overflow=]
The warning is a false positive (we have two buffers of size 128,
so yes, if we FULLY used the first buffer, then sprint'ing it into
the second will overflow the second). But in practice, our first
buffer will not be longer than "/visitor/serialization/String",
so sizing it smaller is enough to let gcc see that we don't
overflow the second.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20180323204341.1501664-1-eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
patch keeping us from creating too large extents.
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Merge remote-tracking branch 'remotes/maxreitz/tags/pull-block-2018-03-26' into staging
A fix for dirty bitmap migration through shared storage, and a VMDK
patch keeping us from creating too large extents.
# gpg: Signature made Mon 26 Mar 2018 21:17:05 BST
# gpg: using RSA key F407DB0061D5CF40
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"
# Primary key fingerprint: 91BE B60A 30DB 3E88 57D1 1829 F407 DB00 61D5 CF40
* remotes/maxreitz/tags/pull-block-2018-03-26:
vmdk: return ERROR when cluster sector is larger than vmdk limitation
iotests: enable shared migration cases in 169
qcow2: fix bitmaps loading when bitmaps already exist
qcow2-bitmap: add qcow2_reopen_bitmaps_rw_hint()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The include/block/aio-wait.h header file was added by commit
7719f3c968 ("block: extract
AIO_WAIT_WHILE() from BlockDriverState") without updating MAINTAINERS.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 20180312132204.23683-1-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Check that two coroutines can queue each other repeatedly without
hitting stack exhaustion.
Switch to qemu_init_main_loop() in main() because coroutines use
qemu_get_aio_context() - they don't know about test-aio's ctx variable.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20180322152834.12656-4-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
qemu_aio_coroutine_enter() is (indirectly) called recursively when
processing co_queue_wakeup. This can lead to stack exhaustion.
This patch rewrites co_queue_wakeup in an iterative fashion (instead of
recursive) with bounded memory usage to prevent stack exhaustion.
qemu_co_queue_run_restart() is inlined into qemu_aio_coroutine_enter()
and the qemu_coroutine_enter() call is turned into a loop to avoid
recursion.
There is one change that is worth mentioning: Previously, when
coroutine A queued coroutine B, qemu_co_queue_run_restart() entered
coroutine B from coroutine A. If A was terminating then it would still
stay alive until B yielded. After this patch B is entered by A's parent
so that a A can be deleted immediately if it is terminating.
It is safe to make this change since B could never interact with A if it
was terminating anyway.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20180322152834.12656-3-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
QSIMPLEQ_CONCAT(a, b) joins a = a + b. The new QSIMPLEQ_PREPEND(a, b)
API joins a = b + a.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20180322152834.12656-2-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Commit ef0e64a983 "ide: pass IDEState to trim AIO callback" changed the
IDE trim callback from using a BlockBackend to an IDEState but forgot to update
the dma_blk_io() call in hw/ide/macio.c accordingly.
Without this fix qemu-system-ppc segfaults when issuing an IDE trim command on
any of the PPC Mac machines (easily triggered by running the Debian installer).
Reported-by: Howard Spoelstra <hsp.cat7@gmail.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Message-id: 20180223184700.28854-1-mark.cave-ayland@ilande.co.uk
Signed-off-by: John Snow <jsnow@redhat.com>
commit 947858b0 "ide: abort TRIM operation for invalid range"
is incorrect for macio; just ide_dma_error() without doing a callback
is not enough for that errorpath.
Instead, pass -EINVAL to the callback and handle it there
(see related motivation for read/write in 58ac32113).
It will however catch possible EINVAL from the block layer too.
Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-id: 1520010495-58172-1-git-send-email-anton.nefedov@virtuozzo.com
Signed-off-by: John Snow <jsnow@redhat.com>
The value of CCOUNT special register is calculated as time elapsed
since CCOUNT == 0 multiplied by the core frequency. In icount mode time
increment between consecutive instructions that don't involve time
warps is constant, but unless the result of multiplication of this
constant by the core frequency is a whole number the CCOUNT increment
between these instructions may not be constant. E.g. with icount=7 each
instruction takes 128ns, with core clock of 10MHz CCOUNT values for
consecutive instructions are:
502: (128 * 502 * 10000000) / 1000000000 = 642.56
503: (128 * 503 * 10000000) / 1000000000 = 643.84
504: (128 * 504 * 10000000) / 1000000000 = 645.12
I.e.the CCOUNT increments depend on the absolute time. This results in
varying CCOUNT differences for consecutive instructions in tests that
involve time warps and don't set CCOUNT explicitly.
Change frequency of the core used in tests so that clock cycle takes
exactly 64ns. Change icount power used in tests to 6, so that each
instruction takes exactly 1 clock cycle. With these changes CCOUNT
increments only depend on the number of executed instructions and that's
what timer tests expect, so they work correctly.
Longer story:
http://lists.nongnu.org/archive/html/qemu-devel/2018-03/msg04326.html
Cc: Pavel Dovgaluk <Pavel.Dovgaluk@ispras.ru>
Cc: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
