Marc-André Lureau [Thu, 6 Sep 2018 16:14:15 +0000 (20:14 +0400)]
hostmem-memfd: add checks before adding hostmem-memfd & properties
Run some memfd-related checks before registering hostmem-memfd &
various properties. This will help libvirt to figure out what the host
is supposed to be capable of.
qemu_memfd_check() is changed to a less optimized version, since it is
used with various flags, it no longer caches the result.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <
20180906161415.8543-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Viktor Prutyanov [Wed, 29 Aug 2018 18:30:56 +0000 (21:30 +0300)]
dump: fix Windows dump memory run mapping
We should map and use guest memory run by parts if it can't be mapped as
a whole.
After this patch, continuos guest physical memory blocks which are not
continuos in host virtual address space will be processed correctly.
Signed-off-by: Viktor Prutyanov <viktor.prutyanov@virtuozzo.com>
Message-Id: <
1535567456-6904-1-git-send-email-viktor.prutyanov@virtuozzo.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Emilio G. Cota [Mon, 10 Sep 2018 23:27:50 +0000 (19:27 -0400)]
cpus: access .qemu_icount_bias with atomic64
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
20180910232752.31565-11-cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Emilio G. Cota [Mon, 10 Sep 2018 23:27:49 +0000 (19:27 -0400)]
cpus: access .qemu_icount with atomic64
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
20180910232752.31565-10-cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 11 Sep 2018 11:15:32 +0000 (13:15 +0200)]
cpus: take seqlock across qemu_icount updates
Even though writes of qemu_icount can safely race with reads in
qemu_icount_raw, qemu_icount is also read by icount_adjust, which
runs in the I/O thread. Therefore, writes do needs protection of
the vm_clock_lock; for simplicity the patch protects it with both
seqlock+spinlock, which we already do for hosts that lack 64-bit atomics.
The bug actually predated the introduction of vm_clock_lock;
cpu_update_icount would have needed the BQL before the spinlock was
introduced.
Reported-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Emilio G. Cota [Mon, 10 Sep 2018 23:27:45 +0000 (19:27 -0400)]
test-rcu-list: access n_reclaims and n_nodes_removed with atomic64
To avoid undefined behaviour.
Note that these "atomics" are atomic in the "access once" sense.
The variables are updated by a single thread at a time, so no
"full" atomics are necessary.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
20180910232752.31565-6-cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Emilio G. Cota [Mon, 10 Sep 2018 23:27:44 +0000 (19:27 -0400)]
qsp: use atomic64 accessors
With the seqlock, we either have to use atomics to remain
within defined behaviour (and note that 64-bit atomics aren't
always guaranteed to compile, irrespective of __nocheck), or
drop the atomics and be in undefined behaviour territory.
Fix it by dropping the seqlock and using atomic64 accessors.
This will limit scalability when !CONFIG_ATOMIC64, but those
machines (1) don't have many users and (2) are unlikely to
have many cores.
- With CONFIG_ATOMIC64:
$ tests/atomic_add-bench -n 1 -m -p
Throughput: 13.00 Mops/s
- Forcing !CONFIG_ATOMIC64:
$ tests/atomic_add-bench -n 1 -m -p
Throughput: 10.89 Mops/s
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
20180910232752.31565-5-cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Emilio G. Cota [Mon, 10 Sep 2018 23:27:43 +0000 (19:27 -0400)]
tests: add atomic64-bench
- With CONFIG_ATOMIC64:
$ tests/atomic64-bench -n 1
Throughput: 310.40 Mops/s
- Without:
$ tests/atomic64-bench -n 1
Throughput: 149.08 Mops/s
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
20180910232752.31565-4-cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Emilio G. Cota [Mon, 10 Sep 2018 23:27:42 +0000 (19:27 -0400)]
util: add atomic64
This introduces read/set accessors for int64_t and uint64_t.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
20180910232752.31565-3-cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Emilio G. Cota [Mon, 10 Sep 2018 23:27:41 +0000 (19:27 -0400)]
cacheinfo: add i/d cache_linesize_log
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
20180910232752.31565-2-cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Emilio G. Cota [Mon, 3 Sep 2018 17:18:29 +0000 (13:18 -0400)]
cpus: initialize timers_state.vm_clock_lock
We forgot to initialize the spinlock introduced in
94377115b2
("cpus: protect TimerState writes with a spinlock", 2018-08-23).
Fix it.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
20180903171831.15446-5-cota@braap.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Emilio G. Cota [Mon, 3 Sep 2018 17:18:28 +0000 (13:18 -0400)]
atomic: fix comment s/x64_64/x86_64/
Signed-off-by: Emilio G. Cota <cota@braap.org>
Message-Id: <
20180903171831.15446-4-cota@braap.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pavel Dovgalyuk [Fri, 11 May 2018 08:16:01 +0000 (11:16 +0300)]
ps2: prevent changing irq state on save and load
Commit
2858ab09e6f708e381fc1a1cc87e747a690c4884 changed
PS/2 keyboard/mouse buffers to the standard size. However, its state
may change when migrating from the old buffer size and therefore irq needs
updating. But this change made wrong, because it throws the whole queue
if there are too much data instead of cropping it.
That commit also updates irq (because the queue state may change).
But updating the irq may change the VM state (and determinism of
the execution). E.g., when replaying the execution, one may save
the VM state and the state of the interrupt controller will be updated
at the moment of saving, instead of using the recorded update events.
This patch makes the queue update deterministic: it removes the update_irq
call and crops the queue to prevent losing the characters and changing
the required irq status.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Message-Id: <
20180511081601.14610.39946.stgit@pasha-VirtualBox>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Fri, 24 Aug 2018 15:03:41 +0000 (17:03 +0200)]
es1370: fix ADC_FRAMEADR and ADC_FRAMECNT
They are not consecutive with DAC1_FRAME* and DAC2_FRAME*.
Fixes: 154c1d1f960c5147a3f8ef00907504112f271cd8
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Fri, 24 Aug 2018 15:08:09 +0000 (17:08 +0200)]
qsp: hide indirect function calls from Coverity
Coverity does not see anymore that qemu_mutex_lock is taking a lock.
Hide all the QSP magic so that static analysis works again.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fam Zheng [Mon, 10 Sep 2018 14:56:15 +0000 (22:56 +0800)]
virtio: Return true from virtio_queue_empty if broken
Both virtio-blk and virtio-scsi use virtio_queue_empty() as the
loop condition in VQ handlers (virtio_blk_handle_vq,
virtio_scsi_handle_cmd_vq). When a device is marked broken in
virtqueue_pop, for example if a vIOMMU address translation failed, we
want to break out of the loop.
This fixes a hanging problem when booting a CentOS 3.10.0-862.el7.x86_64
kernel with ATS enabled:
$ qemu-system-x86_64 \
... \
-device intel-iommu,intremap=on,caching-mode=on,eim=on,device-iotlb=on \
-device virtio-scsi-pci,iommu_platform=on,ats=on,id=scsi0,bus=pci.4,addr=0x0
The dead loop happens immediately when the kernel boots and initializes
the device, where virtio_scsi_data_plane_handle_cmd will not return:
> ...
> #13 0x00005586602b7793 in virtio_scsi_handle_cmd_vq
> #14 0x00005586602b8d66 in virtio_scsi_data_plane_handle_cmd
> #15 0x00005586602ddab7 in virtio_queue_notify_aio_vq
> #16 0x00005586602dfc9f in virtio_queue_host_notifier_aio_poll
> #17 0x00005586607885da in run_poll_handlers_once
> #18 0x000055866078880e in try_poll_mode
> #19 0x00005586607888eb in aio_poll
> #20 0x0000558660784561 in aio_wait_bh_oneshot
> #21 0x00005586602b9582 in virtio_scsi_dataplane_stop
> #22 0x00005586605a7110 in virtio_bus_stop_ioeventfd
> #23 0x00005586605a9426 in virtio_pci_stop_ioeventfd
> #24 0x00005586605ab808 in virtio_pci_common_write
> #25 0x0000558660242396 in memory_region_write_accessor
> #26 0x00005586602425ab in access_with_adjusted_size
> #27 0x0000558660245281 in memory_region_dispatch_write
> #28 0x00005586601e008e in flatview_write_continue
> #29 0x00005586601e01d8 in flatview_write
> #30 0x00005586601e04de in address_space_write
> #31 0x00005586601e052f in address_space_rw
> #32 0x00005586602607f2 in kvm_cpu_exec
> #33 0x0000558660227148 in qemu_kvm_cpu_thread_fn
> #34 0x000055866078bde7 in qemu_thread_start
> #35 0x00007f5784906594 in start_thread
> #36 0x00007f5784639e6f in clone
With this patch, virtio_queue_empty will now return 1 as soon as the
vdev is marked as broken, after a "virtio: zero sized buffers are not
allowed" error.
To be consistent, update virtio_queue_empty_rcu as well.
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <
20180910145616.8598-2-famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Maydell [Tue, 2 Oct 2018 08:54:44 +0000 (09:54 +0100)]
Merge remote-tracking branch 'remotes/dgibson/tags/libfdt-
20181002' into staging
Update dtc submodule to v1.4.7
We have some upcoming things planned for ppc that will require some
newer libfdt features. In preparation, update the dtc/libfdt
submodule to upstreasm version v1.4.7.
# gpg: Signature made Tue 02 Oct 2018 05:23:43 BST
# gpg: using RSA key
6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/libfdt-
20181002:
Update dtc/libfdt submodule to v1.4.7
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 2 Oct 2018 08:06:56 +0000 (09:06 +0100)]
Merge remote-tracking branch 'remotes/xtensa/tags/
20181001-xtensa' into staging
target/xtensa: preparation for FLIX support
Separate generation of per-instruction code (such as raising exceptions
and terminating TB) from per-opcode code.
# gpg: Signature made Mon 01 Oct 2018 19:14:34 BST
# gpg: using RSA key
51F9CC91F83FA044
# gpg: Good signature from "Max Filippov <filippov@cadence.com>"
# gpg: aka "Max Filippov <max.filippov@cogentembedded.com>"
# gpg: aka "Max Filippov <jcmvbkbc@gmail.com>"
# Primary key fingerprint: 2B67 854B 98E5 327D CDEB 17D8 51F9 CC91 F83F A044
* remotes/xtensa/tags/
20181001-xtensa:
target/xtensa: extract gen_check_interrupts call
target/xtensa: make rsr/wsr helpers return void
target/xtensa: extract unconditional TB termination via slot 0
target/xtensa: always end TB on CCOUNT access/CCOMPARE write
target/xtensa: change SR number checks to assertions
target/xtensa: extract unconditional TB termination
target/xtensa: extract test for division by zero
target/xtensa: extract test for cpdisabled exception
target/xtensa: extract test for alloca exception
target/xtensa: extract test for window underflow exception
target/xtensa: extract test for window overflow exception
target/xtensa: extract test for debug exception
target/xtensa: extract test for syscall instruction
target/xtensa: extract test for privileged instruction
target/xtensa: extract test for an illegal instruction
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
David Gibson [Tue, 2 Oct 2018 03:53:26 +0000 (13:53 +1000)]
Update dtc/libfdt submodule to v1.4.7
dtc v1.4.7 contains a bunch of improvements to make libfdt safer against
handling a corrupted or malicious tree, which is a good thing to have. It
also includes an explicit fdt checking function that we'll be wanting in
future.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Max Filippov [Sun, 2 Sep 2018 09:07:30 +0000 (02:07 -0700)]
target/xtensa: extract gen_check_interrupts call
- mark instructions that affect active IRQ level;
- put call for gen_check_interrupts right after the instruction
translation; when FLIX is enabled it will need to appear before
other exits from the TB as well;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Sun, 2 Sep 2018 02:47:26 +0000 (19:47 -0700)]
target/xtensa: make rsr/wsr helpers return void
Now that all logic for TB termination is extracted from rsr/wsr their
return value is not used and may be dropped.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Sat, 1 Sep 2018 07:47:55 +0000 (00:47 -0700)]
target/xtensa: extract unconditional TB termination via slot 0
- mark instructions that require TB termination via slot 0;
- put TB termination right after the instruction translation loop, if
termination w/o TB linking wasn't requested;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Sun, 2 Sep 2018 04:56:21 +0000 (21:56 -0700)]
target/xtensa: always end TB on CCOUNT access/CCOMPARE write
Currently we only end TB in icount mode, because access to CCOUNT or
write to CCOMPARE are IO operations. Simplify the behaviour a bit and
end TB unconditionally.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Sun, 2 Sep 2018 04:48:59 +0000 (21:48 -0700)]
target/xtensa: change SR number checks to assertions
Opcode decoding with libisa takes care about range of valid group SRs,
like CCOMPARE, IBREAKA, DBREAKA or DBREAKC. Turn range checks in wsr
implementations into assertions.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Sat, 1 Sep 2018 07:47:55 +0000 (00:47 -0700)]
target/xtensa: extract unconditional TB termination
- mark all instructions that exit TB and require dynamic search for the
next TB;
- put TB termination right after the instruction translation loop;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Sat, 1 Sep 2018 04:26:54 +0000 (21:26 -0700)]
target/xtensa: extract test for division by zero
- mark quos/quou/rems/remu instructions;
- drop parameter 0 from the translate_quou and split translate_remu from
it;
- put test for division by zero exception right after the coprocessor
exception test;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Fri, 31 Aug 2018 20:57:08 +0000 (13:57 -0700)]
target/xtensa: extract test for cpdisabled exception
- add XtensaOpcodeOps::coprocessor with bitmask of coprocessors used by
the instruction;
- replace coprocessor id parameter of gen_check_cpenable with the
bitmask of used coprocessors;
- collect coprocessor IDs used by an instruction in the disassembly
loop;
- put test for coprocessor disabled exception after the alloca test;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Fri, 31 Aug 2018 01:21:22 +0000 (18:21 -0700)]
target/xtensa: extract test for alloca exception
- mark movsp instruction;
- put test for alloca exception right after the test for window
underflow;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Fri, 31 Aug 2018 00:55:33 +0000 (17:55 -0700)]
target/xtensa: extract test for window underflow exception
- mark retw and retw.n instructions;
- extract window inderflow test from retw helper;
- put underflow exception check generation right after the overflow
check;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Wed, 29 Aug 2018 17:37:29 +0000 (10:37 -0700)]
target/xtensa: extract test for window overflow exception
- add ps.callinc to the TB flags, that allows testing all instructions
for window overflow statically;
- drop gen_window_check* functions; replace them with get_window_check
that accepts bitmask of used registers;
- add XtensaOpcodeOps::test_overflow that returns bitmask of implicitly
used registers; use it for entry and call{,x}{4,8,12};
- drop window overflow test from the entry helper;
- drop parameter 0 from translate_[di]cache and use translate_nop for
d/i cache opcodes that don't need memory accessibility check;
- add bitmask XtensaOpcodeOps::windowed_register_op that marks opcode
arguments that refer to windowed registers;
- translate windowed_register_op mask to a mask of actually used
registers in the disassembly loop;
- add check for window overflow right after the check for debug
exception;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Tue, 28 Aug 2018 21:52:27 +0000 (14:52 -0700)]
target/xtensa: extract test for debug exception
- mark break and break.n instructions;
- collect debug cause bits from parameter 0 of instructions marked for
debug exception;
- put debug exception check right after syscall check;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Tue, 28 Aug 2018 05:18:48 +0000 (22:18 -0700)]
target/xtensa: extract test for syscall instruction
- mark syscall instruction;
- put syscall exception check right after privileged exception check;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Tue, 28 Aug 2018 05:17:50 +0000 (22:17 -0700)]
target/xtensa: extract test for privileged instruction
- mark privileged instructions;
- put single privileged instruction check after disassembly loop;
- translate_[di]cache: drop parameter 0, shift parameters one down;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Max Filippov [Tue, 28 Aug 2018 04:43:43 +0000 (21:43 -0700)]
target/xtensa: extract test for an illegal instruction
- TB flags: add XTENSA_TBFLAG_CWOE that corresponds to the architectural
CWOE state;
- entry: move CWOE check from the helper to the test_ill_entry;
- retw: move CWOE check from the helper to the test_ill_retw;
- separate instruction disassembly loop and translation loop; save
disassembly results in local array;
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Peter Maydell [Mon, 1 Oct 2018 17:22:55 +0000 (18:22 +0100)]
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer patches:
- qcow2 cache option default changes (Linux: 32 MB maximum, limited by
whatever cache size can be made use of with the specific image;
default cache-clean-interval of 10 minutes)
- reopen: Allow specifying unchanged child node references, and changing
a few generic options (discard, detect-zeroes)
- Fix werror/rerror defaults for -device drive=<node-name>
- Test case fixes
# gpg: Signature made Mon 01 Oct 2018 18:17:35 BST
# 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: (23 commits)
tests/test-bdrv-drain: Fix too late qemu_event_reset()
test-replication: Lock AioContext around blk_unref()
qcow2: Fix cache-clean-interval documentation
block-backend: Set werror/rerror defaults in blk_new()
qcow2: Explicit number replaced by a constant
qcow2: Set the default cache-clean-interval to 10 minutes
qcow2: Resize the cache upon image resizing
qcow2: Increase the default upper limit on the L2 cache size
qcow2: Assign the L2 cache relatively to the image size
qcow2: Avoid duplication in setting the refcount cache size
qcow2: Make sizes more humanly readable
include: Add a lookup table of sizes
qcow2: Options' documentation fixes
block: Allow changing 'detect-zeroes' on reopen
block: Allow changing 'discard' on reopen
file-posix: Forbid trying to change unsupported options during reopen
block: Forbid trying to change unsupported options during reopen
block: Allow child references on reopen
block: Don't look for child references in append_open_options()
block: Remove child references from bs->{options,explicit_options}
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Kevin Wolf [Mon, 1 Oct 2018 15:09:18 +0000 (17:09 +0200)]
tests/test-bdrv-drain: Fix too late qemu_event_reset()
qemu_event_reset() must be called before the AIO request in a different
iothread is submitted. Otherwise the request could be completed before
we do the qemu_event_reset() and the test would hang in
qemu_event_wait().
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Tested-by: Max Reitz <mreitz@redhat.com>
Kevin Wolf [Mon, 1 Oct 2018 14:27:22 +0000 (16:27 +0200)]
test-replication: Lock AioContext around blk_unref()
Recently, the test case has started failing because some job related
functions want to drop the AioContext lock even though it hasn't been
taken:
(gdb) bt
#0 0x00007f51c067c9fb in raise () from /lib64/libc.so.6
#1 0x00007f51c067e77d in abort () from /lib64/libc.so.6
#2 0x0000558c9d5dde7b in error_exit (err=<optimized out>, msg=msg@entry=0x558c9d6fe120 <__func__.18373> "qemu_mutex_unlock_impl") at util/qemu-thread-posix.c:36
#3 0x0000558c9d6b5263 in qemu_mutex_unlock_impl (mutex=mutex@entry=0x558c9f3999a0, file=file@entry=0x558c9d6fd36f "util/async.c", line=line@entry=516) at util/qemu-thread-posix.c:96
#4 0x0000558c9d6b0565 in aio_context_release (ctx=ctx@entry=0x558c9f399940) at util/async.c:516
#5 0x0000558c9d5eb3da in job_completed_txn_abort (job=0x558c9f68e640) at job.c:738
#6 0x0000558c9d5eb227 in job_finish_sync (job=0x558c9f68e640, finish=finish@entry=0x558c9d5eb8d0 <job_cancel_err>, errp=errp@entry=0x0) at job.c:986
#7 0x0000558c9d5eb8ee in job_cancel_sync (job=<optimized out>) at job.c:941
#8 0x0000558c9d64d853 in replication_close (bs=<optimized out>) at block/replication.c:148
#9 0x0000558c9d5e5c9f in bdrv_close (bs=0x558c9f41b020) at block.c:3420
#10 bdrv_delete (bs=0x558c9f41b020) at block.c:3629
#11 bdrv_unref (bs=0x558c9f41b020) at block.c:4685
#12 0x0000558c9d62a3f3 in blk_remove_bs (blk=blk@entry=0x558c9f42a7c0) at block/block-backend.c:783
#13 0x0000558c9d62a667 in blk_delete (blk=0x558c9f42a7c0) at block/block-backend.c:402
#14 blk_unref (blk=0x558c9f42a7c0) at block/block-backend.c:457
#15 0x0000558c9d5dfcea in test_secondary_stop () at tests/test-replication.c:478
#16 0x00007f51c1f13178 in g_test_run_suite_internal () from /lib64/libglib-2.0.so.0
#17 0x00007f51c1f1337b in g_test_run_suite_internal () from /lib64/libglib-2.0.so.0
#18 0x00007f51c1f1337b in g_test_run_suite_internal () from /lib64/libglib-2.0.so.0
#19 0x00007f51c1f13552 in g_test_run_suite () from /lib64/libglib-2.0.so.0
#20 0x00007f51c1f13571 in g_test_run () from /lib64/libglib-2.0.so.0
#21 0x0000558c9d5de31f in main (argc=<optimized out>, argv=<optimized out>) at tests/test-replication.c:581
It is yet unclear whether this should really be considered a bug in the
test case or whether blk_unref() should work for callers that haven't
taken the AioContext lock, but in order to fix the build tests quickly,
just take the AioContext lock around blk_unref().
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Leonid Bloch [Sat, 29 Sep 2018 09:54:54 +0000 (12:54 +0300)]
qcow2: Fix cache-clean-interval documentation
Fixing cache-clean-interval documentation following the recent change to
a default of 600 seconds on supported plarforms (only Linux currently).
Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kevin Wolf [Fri, 28 Sep 2018 09:11:50 +0000 (11:11 +0200)]
block-backend: Set werror/rerror defaults in blk_new()
Currently, the default values for werror and rerror have to be set
explicitly with blk_set_on_error() by the callers of blk_new(). The only
caller actually doing this is blockdev_init(), which is called for
BlockBackends created using -drive.
In particular, anonymous BlockBackends created with
-device ...,drive=<node-name> didn't get the correct default set and
instead defaulted to the integer value 0 (= BLOCKDEV_ON_ERROR_REPORT).
This is the intended default for rerror anyway, but the default for
werror should be BLOCKDEV_ON_ERROR_ENOSPC.
Set the defaults in blk_new() instead so that they apply no matter what
way the BlockBackend was created.
Cc: qemu-stable@nongnu.org
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Peter Maydell [Mon, 1 Oct 2018 14:44:30 +0000 (15:44 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/ui-
20181001-pull-request' into staging
ui: some small fixes/improvements.
# gpg: Signature made Mon 01 Oct 2018 11:42:16 BST
# gpg: using RSA key
4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/ui-
20181001-pull-request:
gtk: add zoom-to-fit to gtk options.
vnc: call sasl_server_init() only when required
sdl2: show console #0 unconditionally
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 1 Oct 2018 11:33:18 +0000 (12:33 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/usb-
20181001-pull-request' into staging
usb: fixes for mtp, hub and ohci.
# gpg: Signature made Mon 01 Oct 2018 10:28:36 BST
# gpg: using RSA key
4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/usb-
20181001-pull-request:
ohci: set effectively usb frame rate to 1kHz
usb-hub: clear suspend on detach
usb-mtp: reset ObjectInfo dataset size on cleanup
doc: replace x-root with rootdir for usb-mtp
usb-mtp: fix error conditions for write operation
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Leonid Bloch [Wed, 26 Sep 2018 16:04:47 +0000 (19:04 +0300)]
qcow2: Explicit number replaced by a constant
Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Leonid Bloch [Wed, 26 Sep 2018 16:04:46 +0000 (19:04 +0300)]
qcow2: Set the default cache-clean-interval to 10 minutes
The default cache-clean-interval is set to 10 minutes, in order to lower
the overhead of the qcow2 caches (before the default was 0, i.e.
disabled).
* For non-Linux platforms the default is kept at 0, because
cache-clean-interval is not supported there yet.
Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Leonid Bloch [Wed, 26 Sep 2018 16:04:45 +0000 (19:04 +0300)]
qcow2: Resize the cache upon image resizing
The caches are now recalculated upon image resizing. This is done
because the new default behavior of assigning L2 cache relatively to
the image size, implies that the cache will be adapted accordingly
after an image resize.
Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Leonid Bloch [Wed, 26 Sep 2018 16:04:44 +0000 (19:04 +0300)]
qcow2: Increase the default upper limit on the L2 cache size
The upper limit on the L2 cache size is increased from 1 MB to 32 MB
on Linux platforms, and to 8 MB on other platforms (this difference is
caused by the ability to set intervals for cache cleaning on Linux
platforms only).
This is done in order to allow default full coverage with the L2 cache
for images of up to 256 GB in size (was 8 GB). Note, that only the
needed amount to cover the full image is allocated. The value which is
changed here is just the upper limit on the L2 cache size, beyond which
it will not grow, even if the size of the image will require it to.
Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Leonid Bloch [Wed, 26 Sep 2018 16:04:43 +0000 (19:04 +0300)]
qcow2: Assign the L2 cache relatively to the image size
Sufficient L2 cache can noticeably improve the performance when using
large images with frequent I/O.
Previously, unless 'cache-size' was specified and was large enough, the
L2 cache was set to a certain size without taking the virtual image size
into account.
Now, the L2 cache assignment is aware of the virtual size of the image,
and will cover the entire image, unless the cache size needed for that is
larger than a certain maximum. This maximum is set to 1 MB by default
(enough to cover an 8 GB image with the default cluster size) but can
be increased or decreased using the 'l2-cache-size' option. This option
was previously documented as the *maximum* L2 cache size, and this patch
makes it behave as such, instead of as a constant size. Also, the
existing option 'cache-size' can limit the sum of both L2 and refcount
caches, as previously.
Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Leonid Bloch [Wed, 26 Sep 2018 16:04:42 +0000 (19:04 +0300)]
qcow2: Avoid duplication in setting the refcount cache size
The refcount cache size does not need to be set to its minimum value in
read_cache_sizes(), as it is set to at least its minimum value in
qcow2_update_options_prepare().
Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Leonid Bloch [Wed, 26 Sep 2018 16:04:41 +0000 (19:04 +0300)]
qcow2: Make sizes more humanly readable
Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Leonid Bloch [Wed, 26 Sep 2018 16:04:40 +0000 (19:04 +0300)]
include: Add a lookup table of sizes
Adding a lookup table for the powers of two, with the appropriate size
prefixes. This is needed when a size has to be stringified, in which
case something like '(1 * KiB)' would become a literal '(1 * (1L << 10))'
string. Powers of two are used very often for sizes, so such a table
will also make it easier and more intuitive to write them.
This table is generatred using the following AWK script:
BEGIN {
suffix="KMGTPE";
for(i=10; i<64; i++) {
val=2**i;
s=substr(suffix, int(i/10), 1);
n=2**(i%10);
pad=21-int(log(n)/log(10));
printf("#define S_%d%siB %*d\n", n, s, pad, val);
}
}
Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Leonid Bloch [Wed, 26 Sep 2018 16:04:39 +0000 (19:04 +0300)]
qcow2: Options' documentation fixes
Signed-off-by: Leonid Bloch <lbloch@janustech.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 6 Sep 2018 09:37:09 +0000 (12:37 +0300)]
block: Allow changing 'detect-zeroes' on reopen
'detect-zeroes' is one of the basic BlockdevOptions available for all
drivers, but it's not handled by bdrv_reopen_prepare(), so any attempt
to change it results in an error:
(qemu) qemu-io virtio0 "reopen -o detect-zeroes=on"
Cannot change the option 'detect-zeroes'
Since there's no reason why we shouldn't allow changing it and the
implementation is simple let's just do it.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 6 Sep 2018 09:37:08 +0000 (12:37 +0300)]
block: Allow changing 'discard' on reopen
'discard' is one of the basic BlockdevOptions available for all
drivers, but it's not handled by bdrv_reopen_prepare() so any attempt
to change it results in an error:
(qemu) qemu-io virtio0 "reopen -o discard=on"
Cannot change the option 'discard'
Since there's no reason why we shouldn't allow changing it and the
implementation is simple let's just do it.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 6 Sep 2018 09:37:07 +0000 (12:37 +0300)]
file-posix: Forbid trying to change unsupported options during reopen
The file-posix code is used for the "file", "host_device" and
"host_cdrom" drivers, and it allows reopening images. However the only
option that is actually processed is "x-check-cache-dropped", and
changes in all other options (e.g. "filename") are silently ignored:
(qemu) qemu-io virtio0 "reopen -o file.filename=no-such-file"
While we could allow changing some of the other options, let's keep
things as they are for now but return an error if the user tries to
change any of them.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 6 Sep 2018 09:37:06 +0000 (12:37 +0300)]
block: Forbid trying to change unsupported options during reopen
The bdrv_reopen_prepare() function checks all options passed to each
BlockDriverState (in the reopen_state->options QDict) and makes all
necessary preparations to apply the option changes requested by the
user.
Options are removed from the QDict as they are processed, so at the
end of bdrv_reopen_prepare() only the options that can't be changed
are left. Then a loop goes over all remaining options and verifies
that the old and new values are identical, returning an error if
they're not.
The problem is that at the moment there are options that are removed
from the QDict although they can't be changed. The consequence of this
is any modification to any of those options is silently ignored:
(qemu) qemu-io virtio0 "reopen -o discard=on"
This happens when all options from bdrv_runtime_opts are removed
from the QDict but then only a few of them are processed. Since
it's especially important that "node-name" and "driver" are not
changed, the code puts them back into the QDict so they are checked
at the end of the function. Instead of putting only those two options
back into the QDict, this patch puts all unprocessed options using
qemu_opts_to_qdict().
update_flags_from_options() also needs to be modified to prevent
BDRV_OPT_CACHE_NO_FLUSH, BDRV_OPT_CACHE_DIRECT and BDRV_OPT_READ_ONLY
from going back to the QDict.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 6 Sep 2018 09:37:05 +0000 (12:37 +0300)]
block: Allow child references on reopen
In the previous patches we removed all child references from
bs->{options,explicit_options} because keeping them is useless and
wrong.
Because of this, any attempt to reopen a BlockDriverState using a
child reference as one of its options would result in a failure,
because bdrv_reopen_prepare() would detect that there's a new option
(the child reference) that wasn't present in bs->options.
But passing child references on reopen can be useful. It's a way to
specify a BDS's child without having to pass recursively all of the
child's options, and if the reference points to a different BDS then
this can allow us to replace the child.
However, replacing the child is something that needs to be implemented
case by case and only when it makes sense. For now, this patch allows
passing a child reference as long as it points to the current child of
the BlockDriverState.
It's also important to remember that, as a consequence of the
previous patches, this child reference will be removed from
bs->{options,explicit_options} after the reopening has been completed.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 6 Sep 2018 09:37:04 +0000 (12:37 +0300)]
block: Don't look for child references in append_open_options()
In the previous patch we removed child references from bs->options, so
there's no need to look for them here anymore.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 6 Sep 2018 09:37:03 +0000 (12:37 +0300)]
block: Remove child references from bs->{options,explicit_options}
Block drivers allow opening their children using a reference to an
existing BlockDriverState. These references remain stored in the
'options' and 'explicit_options' QDicts, but we don't need to keep
them once everything is open.
What is more important, these values can become wrong if the children
change:
$ qemu-img create -f qcow2 hd0.qcow2 10M
$ qemu-img create -f qcow2 hd1.qcow2 10M
$ qemu-img create -f qcow2 hd2.qcow2 10M
$ $QEMU -drive if=none,file=hd0.qcow2,node-name=hd0 \
-drive if=none,file=hd1.qcow2,node-name=hd1,backing=hd0 \
-drive file=hd2.qcow2,node-name=hd2,backing=hd1
After this hd2 has hd1 as its backing file. Now let's remove it using
block_stream:
(qemu) block_stream hd2 0 hd0.qcow2
Now hd0 is the backing file of hd2, but hd2's options QDicts still
contain backing=hd1.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 6 Sep 2018 09:37:02 +0000 (12:37 +0300)]
file-posix: x-check-cache-dropped should default to false on reopen
The default value of x-check-cache-dropped is false. There's no reason
to use the previous value as a default in raw_reopen_prepare() because
bdrv_reopen_queue_child() already takes care of putting the old
options in the BDRVReopenState.options QDict.
If x-check-cache-dropped was previously set but is now missing from
the reopen QDict then it should be reset to false.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 6 Sep 2018 09:37:01 +0000 (12:37 +0300)]
qemu-io: Fix writethrough check in reopen
"qemu-io reopen" doesn't allow changing the writethrough setting of
the cache, but the check is wrong, causing an error even on a simple
reopen with the default parameters:
$ qemu-img create -f qcow2 hd.qcow2 1M
$ qemu-system-x86_64 -monitor stdio -drive if=virtio,file=hd.qcow2
(qemu) qemu-io virtio0 reopen
Cannot change cache.writeback: Device attached
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Fam Zheng [Tue, 25 Sep 2018 05:05:01 +0000 (13:05 +0800)]
file-posix: Include filename in locking error message
Image locking errors happening at device initialization time doesn't say
which file cannot be locked, for instance,
-device scsi-disk,drive=drive-1: Failed to get shared "write" lock
Is another process using the image?
could refer to either the overlay image or its backing image.
Hoist the error_append_hint to the caller of raw_check_lock_bytes where
file name is known, and include it in the error hint.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Peter Maydell [Mon, 1 Oct 2018 10:33:16 +0000 (11:33 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/vga-
20180927-pull-request' into staging
vga: add edid support, qxl bugfixes.
# gpg: Signature made Thu 27 Sep 2018 08:12:32 BST
# gpg: using RSA key
4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138
* remotes/kraxel/tags/vga-
20180927-pull-request:
qxl: support mono cursors with inverted colors
qxl: use guest_monitor_config for local renderer.
display/stdvga: add edid support.
display/edid: add DEFINE_EDID_PROPERTIES
display/edid: add region helper.
display/edid: add qemu_edid_size()
display/edid: add edid generator to qemu.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Gerd Hoffmann [Mon, 27 Aug 2018 09:56:20 +0000 (11:56 +0200)]
gtk: add zoom-to-fit to gtk options.
This allows to set the option on the command line, i.e. "-display
gtk,zoom-to-fit={on,off}", overriding the default chosen by qemu.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id:
20180827095620.26774-1-kraxel@redhat.com
Marc-André Lureau [Fri, 7 Sep 2018 06:36:34 +0000 (10:36 +0400)]
vnc: call sasl_server_init() only when required
VNC server is calling sasl_server_init() during startup of QEMU, even
if SASL auth has not been enabled.
This may create undesirable warnings like "Could not find keytab file:
/etc/qemu/krb5.tab" when the user didn't configure SASL on host and
started VNC server.
Instead, only initialize SASL when needed. Note that HMP/QMP "change
vnc" calls vnc_display_open() again, which will initialize SASL if
needed.
Fix assignment in if condition, while touching this code.
Related to:
https://bugzilla.redhat.com/show_bug.cgi?id=
1609327
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id:
20180907063634.359-1-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Gerd Hoffmann [Wed, 12 Sep 2018 11:43:00 +0000 (13:43 +0200)]
sdl2: show console #0 unconditionally
Otherwise sdl2 will show no window in case no graphical
display device is present.
Reproducer: qemu -nodefaults -display sdl -serial vc
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
20180912114300.6976-1-kraxel@redhat.com
Miguel GAIO [Thu, 27 Sep 2018 15:19:36 +0000 (17:19 +0200)]
ohci: set effectively usb frame rate to 1kHz
USB frame rate is slightly lower than 1kHz: ie. ~950Hz.
Thus usb-audio device is not able to perform a simple audio playback
without underruns on audio backend.
eg. "-device pci-ohci,id=ohci -device usb-audio,bus=ohci.0" vs PulseAudio
backend. more than 50 underruns are observed per second.
Update ohci_sof_time computation, using QEMU_CLOCK_VIRTUAL in
ohci_usb_start(), and increment by usb_frame_time in ohci_sof()
makes USB frame rate close to 1kHz.
This way, no audio underrun are observed during audio playback.
Signed-off-by: Miguel GAIO <mgaio35@gmail.com>
Message-Id: <
20180927151936.3647-1-mgaio35@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Gerd Hoffmann [Wed, 12 Sep 2018 11:40:12 +0000 (13:40 +0200)]
usb-hub: clear suspend on detach
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
20180912114012.6034-1-kraxel@redhat.com
Bandan Das [Fri, 7 Sep 2018 22:08:51 +0000 (18:08 -0400)]
usb-mtp: reset ObjectInfo dataset size on cleanup
Stale values in this field may result in qemu
expecting more data on the next operation
Signed-off-by: Bandan Das <bsd@redhat.com>
Message-id:
20180907220851.9658-4-bsd@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Bandan [Fri, 7 Sep 2018 22:08:50 +0000 (18:08 -0400)]
doc: replace x-root with rootdir for usb-mtp
Signed-off-by: Bandan <bsd@redhat.com>
Message-id:
20180907220851.9658-3-bsd@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Bandan [Fri, 7 Sep 2018 22:08:49 +0000 (18:08 -0400)]
usb-mtp: fix error conditions for write operation
Return STORE_FULL if we can't write all the bytes but
return incomplete transfer if data received is less then
what was specified in the metadata. Also, use d->offset
as the file size which is valid for all file sizes.
Signed-off-by: Bandan <bsd@redhat.com>
Message-id:
20180907220851.9658-2-bsd@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Peter Maydell [Mon, 1 Oct 2018 08:21:22 +0000 (09:21 +0100)]
Merge remote-tracking branch 'remotes/ericb/tags/pull-nbd-2018-09-26' into staging
nbd patches for 2018-09-26
Fixes for external clients; add reminder to revisit naming of x- command
- Vladimir Sementsov-Ogievskiy: nbd/server: send more than one extent of base:allocation context
- John Snow: qapi: bitmap-merge: document name change
- Vladimir Sementsov-Ogievskiy: nbd/server: fix bitmap export
# gpg: Signature made Thu 27 Sep 2018 03:40:03 BST
# gpg: using RSA key
A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>"
# gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>"
# gpg: aka "[jpeg image of size 6874]"
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2 F3AA A7A1 6B4A 2527 436A
* remotes/ericb/tags/pull-nbd-2018-09-26:
nbd/server: send more than one extent of base:allocation context
qapi: bitmap-merge: document name change
nbd/server: fix bitmap export
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 28 Sep 2018 17:56:09 +0000 (18:56 +0100)]
Merge remote-tracking branch 'remotes/rth/tags/pull-tcg-
20180926' into staging
Queued tcg patches
# gpg: Signature made Wed 26 Sep 2018 19:27:22 BST
# gpg: using RSA key
64DF38E8AF7E215F
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>"
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* remotes/rth/tags/pull-tcg-
20180926:
tcg/i386: fix vector operations on 32-bit hosts
qht-bench: add -p flag to precompute hash values
qht: constify arguments to some internal functions
qht: constify qht_statistics_init
qht: constify qht_lookup
qht: fix comment in qht_bucket_remove_entry
qht: drop ht argument from qht iterators
test-qht: speed up + test qht_resize
test-qht: test deletion of the last entry in a bucket
test-qht: test removal of non-existent entries
test-qht: test qht_iter_remove
qht: add qht_iter_remove
qht: remove unused map param from qht_remove__locked
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 28 Sep 2018 16:07:23 +0000 (17:07 +0100)]
Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-
20180926a' into staging
Migration pull 2018-09-26
This supercedes Juan's pull from the 13th
# gpg: Signature made Wed 26 Sep 2018 18:07:30 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-
20180926a:
migration/ram.c: Avoid taking address of fields in packed MultiFDInit_t struct
migration: fix the compression code
migration: fix QEMUFile leak
tests/migration: Speed up the test on ppc64
migration: cleanup in error paths in loadvm
migration/postcopy: Clear have_listen_thread
tests/migration: Add migration-test header file
tests/migration: Support cross compilation in generating boot header file
tests/migration: Convert x86 boot block compilation script into Makefile
migration: use save_page_use_compression in flush_compressed_data
migration: show the statistics of compression
migration: do not flush_compressed_data at the end of iteration
Add a hint message to loadvm and exits on failure
migration: handle the error condition properly
migration: fix calculating xbzrle_counters.cache_miss_rate
migration/rdma: Fix uninitialised rdma_return_path
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 28 Sep 2018 13:17:12 +0000 (14:17 +0100)]
Merge remote-tracking branch 'remotes/otubo/tags/pull-seccomp-
20180926' into staging
pull-seccomp-
20180926
# gpg: Signature made Wed 26 Sep 2018 14:20:06 BST
# gpg: using RSA key
DF32E7C0F0FFF9A2
# gpg: Good signature from "Eduardo Otubo (Senior Software Engineer) <otubo@redhat.com>"
# Primary key fingerprint: D67E 1B50 9374 86B4 0723 DBAB DF32 E7C0 F0FF F9A2
* remotes/otubo/tags/pull-seccomp-
20180926:
seccomp: check TSYNC host capability
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 28 Sep 2018 12:35:26 +0000 (13:35 +0100)]
Merge remote-tracking branch 'remotes/famz/tags/staging-pull-request' into staging
Block and testing patches
- Paolo's AIO fixes.
- VMDK streamOptimized corner case fix
- VM testing improvment on -cpu
# gpg: Signature made Wed 26 Sep 2018 03:54:08 BST
# gpg: using RSA key
CA35624C6A9171C6
# gpg: Good signature from "Fam Zheng <famz@redhat.com>"
# Primary key fingerprint: 5003 7CB7 9706 0F76 F021 AD56 CA35 624C 6A91 71C6
* remotes/famz/tags/staging-pull-request:
vmdk: align end of file to a sector boundary
tests/vm: Use -cpu max rather than -cpu host
aio-posix: do skip system call if ctx->notifier polling succeeds
aio-posix: compute timeout before polling
aio-posix: fix concurrent access to poll_disable_cnt
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 28 Sep 2018 10:22:36 +0000 (11:22 +0100)]
Merge remote-tracking branch 'remotes/vivier2/tags/linux-user-for-3.1-pull-request' into staging
- some fixes for setrlimit() and write()
- fixes ELF loader when host page size is greater than target page size
- add SO_LINGER to getsockopt()/setsockopt()
- move TargetFdTrans from syscall.c
v2: add "#include <linux/netlink.h>" in linux-user/fd-trans.c
# gpg: Signature made Tue 25 Sep 2018 21:51:13 BST
# 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/vivier2/tags/linux-user-for-3.1-pull-request:
linux-user: do setrlimit selectively
linux-user: write(fd, NULL, 0) parity with linux's treatment of same
linux-user: elf: mmap all the target-pages of hostpage for data segment
linux-user: add SO_LINGER to {g,s}etsockopt
linux-user: move TargetFdTrans functions to their own file
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Wu [Mon, 3 Sep 2018 14:54:47 +0000 (16:54 +0200)]
qxl: support mono cursors with inverted colors
Monochrome cursors are still used by Windows guests with the
QXL-WDDM-DOD driver. Such cursor types have one odd feature, inversion
of colors. GDK does not seem to support it, so implement an alternative
solution: fill the inverted pixels and add an outline to make the cursor
more visible. Tested with the text cursor in Notepad and Windows 10.
cursor_set_mono is also used by the vmware GPU, so add a special check
to avoid breaking its 32bpp format (tested with Kubuntu 14.04.4). I was
unable to find a guest which supports the 1bpp format with a vmware GPU.
The old implementation was buggy and removed in
v2.10.0-108-g79c5a10cdd
("qxl: drop mono cursor support"), this version improves upon that by
adding bounds validation, clarifying the semantics of the two masks and
adds a workaround for inverted colors support.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1611984
Signed-off-by: Peter Wu <peter@lekensteyn.nl>
Message-id:
20180903145447.17142-1-peter@lekensteyn.nl
[ kraxel: minor codestyle fix ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Gerd Hoffmann [Wed, 19 Sep 2018 10:30:57 +0000 (12:30 +0200)]
qxl: use guest_monitor_config for local renderer.
When processing monitor config from guest store head0 width and height
for single-head configurations. Use these when creating the
DisplaySurface in the local renderer.
This fixes a rendering issue with wayland. Wayland rounds up the
framebuffer width and height to a multiple of 64, so with odd
resolutions (800x600 for example) the framebuffer is larger than the
actual screen. The monitor config has the actual screen size though.
This fixes guest display for anything using the local renderer
(non-spice UI, screendump monitor command).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id:
20180919103057.9666-1-kraxel@redhat.com
Gerd Hoffmann [Tue, 25 Sep 2018 07:56:46 +0000 (09:56 +0200)]
display/stdvga: add edid support.
This patch adds edid support to the qemu stdvga. It is turned off by
default and can be enabled with the new edid property. The patch also
adds xres and yres properties to specify the video mode you want the
guest use. Works only with edid enabled and updated guest driver.
The mmio bar of the stdvga has some unused address space at the start.
It was reserved just in case it'll be needed for virtio, but it turned
out to not be needed for that. So let's use that region to place the
EDID data block there.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
20180925075646.25114-6-kraxel@redhat.com
Gerd Hoffmann [Tue, 25 Sep 2018 07:56:45 +0000 (09:56 +0200)]
display/edid: add DEFINE_EDID_PROPERTIES
Add a define for edid monitor properties.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
20180925075646.25114-5-kraxel@redhat.com
Gerd Hoffmann [Tue, 25 Sep 2018 07:56:44 +0000 (09:56 +0200)]
display/edid: add region helper.
Create a io region for an EDID data block.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id:
20180925075646.25114-4-kraxel@redhat.com
Gerd Hoffmann [Tue, 25 Sep 2018 07:56:43 +0000 (09:56 +0200)]
display/edid: add qemu_edid_size()
Helper function to figure the size of a edid blob, by checking how many
extensions are present. Both the base edid blob and the extensions are
128 bytes in size.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
20180925075646.25114-3-kraxel@redhat.com
Gerd Hoffmann [Tue, 25 Sep 2018 07:56:42 +0000 (09:56 +0200)]
display/edid: add edid generator to qemu.
EDID is a metadata format to describe monitors. On physical hardware
the monitor has an eeprom with that data block which can be read over
i2c bus.
On a linux system you can usually find the EDID data block in
/sys/class/drm/$card/$connector/edid. xorg ships a edid-decode utility
which you can use to turn the blob into readable form.
I think it would be a good idea to use EDID for virtual displays too.
Needs changes in both qemu and guest kms drivers. This patch is the
first step, it adds an generator for EDID blobs to qemu. Comes with a
qemu-edid test tool included.
With EDID we can pass more information to the guest. Names and serial
numbers, so the guests display configuration has no boring "Unknown
Monitor". List of video modes. Display resolution, pretty important
in case we want add HiDPI support some day.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id:
20180925075646.25114-2-kraxel@redhat.com
Vladimir Sementsov-Ogievskiy [Wed, 4 Jul 2018 11:23:02 +0000 (14:23 +0300)]
nbd/server: send more than one extent of base:allocation context
This is necessary for efficient block-status export, for clients which
support it. (qemu is not yet such a client, but could become one.)
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <
20180704112302.471456-3-vsementsov@virtuozzo.com>
[eblake: grammar tweaks]
Signed-off-by: Eric Blake <eblake@redhat.com>
John Snow [Wed, 19 Sep 2018 19:09:34 +0000 (15:09 -0400)]
qapi: bitmap-merge: document name change
We named these using underscores instead of the preferred dash,
document this nearby so we cannot possibly forget to rectify this
when we remove the 'x-' prefixes when the feature becomes stable.
We do not implement the change ahead of time to avoid more work
for libvirt to do in order to figure out how to use the beta version
of the API needlessly.
Reported-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <
20180919190934.16284-1-jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: typo fix]
Signed-off-by: Eric Blake <eblake@redhat.com>
Peter Maydell [Tue, 25 Sep 2018 16:19:24 +0000 (17:19 +0100)]
migration/ram.c: Avoid taking address of fields in packed MultiFDInit_t struct
Taking the address of a field in a packed struct is a bad idea, because
it might not be actually aligned enough for that pointer type (and
thus cause a crash on dereference on some host architectures). Newer
versions of clang warn about this:
migration/ram.c:651:19: warning: taking address of packed member 'magic' of class or structure 'MultiFDInit_t' may result in an unaligned pointer value [-Waddress-of-packed-member]
migration/ram.c:652:19: warning: taking address of packed member 'version' of class or structure 'MultiFDInit_t' may result in an unaligned pointer value [-Waddress-of-packed-member]
migration/ram.c:737:19: warning: taking address of packed member 'magic' of class or structure 'MultiFDPacket_t' may result in an unaligned pointer value [-Waddress-of-packed-member]
migration/ram.c:745:19: warning: taking address of packed member 'version' of class or structure 'MultiFDPacket_t' may result in an unaligned pointer value [-Waddress-of-packed-member]
migration/ram.c:755:19: warning: taking address of packed member 'size' of class or structure 'MultiFDPacket_t' may result in an unaligned pointer value [-Waddress-of-packed-member]
Avoid the bug by not using the "modify in place" byteswapping
functions.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <
20180925161924.7832-1-peter.maydell@linaro.org>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Fei Li [Tue, 25 Sep 2018 09:14:40 +0000 (17:14 +0800)]
migration: fix the compression code
Add judgement in compress_threads_save_cleanup() to check whether the
static CompressParam *comp_param has been allocated. If not, just
return; or else segmentation fault will occur when using the NULL
comp_param's parameters. One test case can reproduce this is: set
the compression on and migrate to a wrong nonexistent host IP address.
Our current code does not judge before handling comp_param[idx]'s quit
and cond that whether they have been initialized. If not initialized,
"qemu_mutex_lock_impl: Assertion `mutex->initialized' failed." will
occur. Fix this by squashing the terminate_compression_threads() into
compress_threads_save_cleanup() and employing the existing judgement
condition. One test case can reproduce this error is: set the
compression on and fail to fully setup the default eight compression
thread in compress_threads_save_setup().
Signed-off-by: Fei Li <fli@suse.com>
Message-Id: <
20180925091440.18910-1-fli@suse.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Marc-André Lureau [Tue, 25 Sep 2018 09:22:45 +0000 (13:22 +0400)]
migration: fix QEMUFile leak
Spotted by ASAN while running:
$ tests/migration-test -p /x86_64/migration/postcopy/recovery
=================================================================
==18034==ERROR: LeakSanitizer: detected memory leaks
Direct leak of 33864 byte(s) in 1 object(s) allocated from:
#0 0x7f3da7f31e50 in calloc (/lib64/libasan.so.5+0xeee50)
#1 0x7f3da644441d in g_malloc0 (/lib64/libglib-2.0.so.0+0x5241d)
#2 0x55af9db15440 in qemu_fopen_channel_input /home/elmarco/src/qemu/migration/qemu-file-channel.c:183
#3 0x55af9db15413 in channel_get_output_return_path /home/elmarco/src/qemu/migration/qemu-file-channel.c:159
#4 0x55af9db0d4ac in qemu_file_get_return_path /home/elmarco/src/qemu/migration/qemu-file.c:78
#5 0x55af9dad5e4f in open_return_path_on_source /home/elmarco/src/qemu/migration/migration.c:2295
#6 0x55af9dadb3bf in migrate_fd_connect /home/elmarco/src/qemu/migration/migration.c:3111
#7 0x55af9dae1bf3 in migration_channel_connect /home/elmarco/src/qemu/migration/channel.c:91
#8 0x55af9daddeca in socket_outgoing_migration /home/elmarco/src/qemu/migration/socket.c:108
#9 0x55af9e13d3db in qio_task_complete /home/elmarco/src/qemu/io/task.c:158
#10 0x55af9e13ca03 in qio_task_thread_result /home/elmarco/src/qemu/io/task.c:89
#11 0x7f3da643b1ca in g_idle_dispatch gmain.c:5535
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <
20180925092245.29565-1-marcandre.lureau@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Thomas Huth [Mon, 17 Sep 2018 17:12:10 +0000 (19:12 +0200)]
tests/migration: Speed up the test on ppc64
The SLOF boot process is always quite slow ... but we can speed it up
a little bit by specifying "-nodefaults" and by using the "nvramrc"
variable instead of "boot-command" (since "nvramrc" is evaluated earlier
in the SLOF boot process than "boot-command").
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <
1537204330-16076-1-git-send-email-thuth@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Dr. David Alan Gilbert [Fri, 14 Sep 2018 17:04:30 +0000 (18:04 +0100)]
migration: cleanup in error paths in loadvm
There's a couple of error paths in qemu_loadvm_state
which happen early on but after we've initialised the
load state; that needs to be cleaned up otherwise
we can hit asserts if the state gets reinitialised later.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <
20180914170430.54271-3-dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Dr. David Alan Gilbert [Fri, 14 Sep 2018 17:04:29 +0000 (18:04 +0100)]
migration/postcopy: Clear have_listen_thread
Clear have_listen_thread when we exit the thread.
The fallout from this was that various things thought there was
an ongoing postcopy after the postcopy had finished.
The case that failed was postcopy->savevm->loadvm.
This corresponds to RH bug https://bugzilla.redhat.com/show_bug.cgi?id=
1608765
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <
20180914170430.54271-2-dgilbert@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Roman Kapl [Fri, 24 Aug 2018 13:17:34 +0000 (15:17 +0200)]
tcg/i386: fix vector operations on 32-bit hosts
The TCG backend uses LOWREGMASK to get the low 3 bits of register numbers.
This was defined as no-op for 32-bit x86, with the assumption that we have
eight registers anyway. This assumption is not true once we have xmm regs.
Since LOWREGMASK was a no-op, xmm register indidices were wrong in opcodes
and have overflown into other opcode fields, wreaking havoc.
To trigger these problems, you can try running the "movi d8, #0x0" AArch64
instruction on 32-bit x86. "vpxor %xmm0, %xmm0, %xmm0" should be generated,
but instead TCG generated "vpxor %xmm0, %xmm0, %xmm2".
Fixes: 770c2fc7bb ("Add vector operations")
Signed-off-by: Roman Kapl <rka@sysgo.com>
Message-Id: <
20180824131734.18557-1-rka@sysgo.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Emilio G. Cota [Mon, 10 Sep 2018 18:31:54 +0000 (14:31 -0400)]
qht-bench: add -p flag to precompute hash values
Precomputing the hash values allows us to perform more frequent
accesses to the hash table, thereby reaching higher throughputs.
We keep the old behaviour by default, since (1) we might confuse
users if they measured a speedup without changing anything in
the QHT implementation, and (2) benchmarking the hash function
"on line" is also valuable.
Before:
$ taskset -c 0 tests/qht-bench -n 1
Throughput: 38.18 MT/s
After:
$ taskset -c 0 tests/qht-bench -n 1
Throughput: 38.16 MT/s
After (with precomputing):
$ taskset -c 0 tests/qht-bench -n 1 -p
Throughput: 50.87 MT/s
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Emilio G. Cota [Mon, 10 Sep 2018 17:48:39 +0000 (13:48 -0400)]
qht: constify arguments to some internal functions
These functions do not modify their @ht or @bucket arguments.
Constify those arguments.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Emilio G. Cota [Mon, 10 Sep 2018 17:43:06 +0000 (13:43 -0400)]
qht: constify qht_statistics_init
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Emilio G. Cota [Mon, 10 Sep 2018 17:40:07 +0000 (13:40 -0400)]
qht: constify qht_lookup
seqlock_read_begin takes a const param since
c04649eeea
("seqlock: constify seqlock_read_begin", 2018-08-23), so
we can constify the entire lookup.
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Emilio G. Cota [Mon, 10 Sep 2018 17:23:42 +0000 (13:23 -0400)]
qht: fix comment in qht_bucket_remove_entry
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Emilio G. Cota [Mon, 10 Sep 2018 17:06:12 +0000 (13:06 -0400)]
qht: drop ht argument from qht iterators
Accessing the HT from an iterator results almost always
in a deadlock. Given that only one qht-internal function
uses this argument, drop it from the interface.
Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Emilio G. Cota [Fri, 17 Aug 2018 22:15:52 +0000 (18:15 -0400)]
test-qht: speed up + test qht_resize
Perform first the tests that exercise code paths that are
easier to hit at small table sizes, and then resize the table
to speed up subsequent tests. If this resize is not too large,
we can make the test faster with no code coverage loss.
- With gcov enabled:
Before: 20.568s, 90.28% qht.c coverage
After: 5.168s, 93.06% qht.c coverage
The coverage increase is entirely due to calling qht_resize,
which we weren't calling before. Note that the code paths
that remain to be tested are either error handling or
can only occur when several threads are accessing the
hash table concurrently (e.g. seqlock retry, trylock fail).
- Without gcov:
Before: 1.987s
After: 0.528s
The speedup is almost the same as with gcov, although the
"before" run is a lot faster.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Emilio G. Cota [Fri, 17 Aug 2018 22:15:33 +0000 (18:15 -0400)]
test-qht: test deletion of the last entry in a bucket
This improves coverage by one (!) LoC in qht.c, bringing the
coverage rate up from 90.00% to 90.28%.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Emilio G. Cota [Wed, 15 Aug 2018 21:56:26 +0000 (17:56 -0400)]
test-qht: test removal of non-existent entries
This improves qht.c code coverage from 89.44% to 90.00%.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>