modinfo runs the preprocessor and therefore needs all generated input files
to be there. The "depends" clause does not work in Meson 0.55.3, so for
now use "input".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We recently bumped our requirement for Clang to at least version 6.0.
And according to:
https://releases.llvm.org/6.0.0/tools/clang/docs/AttributeReference.html
Clang v6.0 supports the alloc_size attribute. Thus we can drop this
check in the configure script now.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210714072855.785566-1-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
EFER.SVME has to be set, and EFER reserved bits must
be zero.
In addition the combinations
* EFER.LMA or EFER.LME is non-zero and the processor does not support LM
* non-zero EFER.LME and CR0.PG and zero CR4.PAE
* non-zero EFER.LME and CR0.PG and zero CR0.PE
* non-zero EFER.LME, CR0.PG, CR4.PAE, CS.L and CS.D
are all invalid.
(AMD64 Architecture Programmer's Manual, V2, 15.5)
Signed-off-by: Lara Lazier <laramglazier@gmail.com>
Message-Id: <20210721152651.14683-3-laramglazier@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
All MBZ bits in CR4 must be zero. (APM2 15.5)
Added reserved bitmask and added checks in both
helper_vmrun and helper_write_crN.
Signed-off-by: Lara Lazier <laramglazier@gmail.com>
Message-Id: <20210721152651.14683-2-laramglazier@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The APM2 states that The processor takes a virtual INTR interrupt
if V_IRQ and V_INTR_PRIO indicate that there is a virtual interrupt pending
whose priority is greater than the value in V_TPR.
Signed-off-by: Lara Lazier <laramglazier@gmail.com>
Message-Id: <20210721152651.14683-1-laramglazier@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit d8fb7d0969 ("vl: switch -M parsing
to keyval") stopped adding the "machine" QemuOptsList. This causes
"machine" options to not show up in QMP query-command-line-options
output. For example, libvirt cannot detect that kernel_irqchip support
is available.
Adjust the "machine" opts enumeration in
qmp_query_command_line_options() so that options are properly reported.
Fixes: d8fb7d0969 ("vl: switch -M parsing to keyval")
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20210721151055.424580-1-stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The chardev-spicevmc class was not listed in chardev/spice.c, causing
"-chardev spicevmc" to fail when modules are enabled.
Reported-by: Frederic Bezies <fredbezies@gmail.com>
Fixes: 9f4a0f0978 ("modules: use modinfo for qom load", 2021-07-09)
Resolves: //gitlab.com/qemu-project/qemu/-/issues/488
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20210719164435.1227794-1-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The qemu.h file is a CONFIG_USER_ONLY header; it doesn't appear on
the include path for softmmu builds. Currently we include it
unconditionally in target/hexagon/op_helper.c. We used to need it
for the put_user_*() and get_user_*() functions, but now that we have
removed the uses of those from op_helper.c, the only reason it's
still there is that we're implicitly relying on it pulling in some
other headers.
Explicitly include the headers we need for other functions, and drop
the include of qemu.h.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210717103017.20491-1-peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Taylor Simpson <tsimpson@quicinc.com>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Replace put_user_* with cpu_st*_data_ra
Replace get_user_* with cpu_ld*_data_ra
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Taylor Simpson <tsimpson@quicinc.com>
Message-Id: <1626384156-6248-2-git-send-email-tsimpson@quicinc.com>
The point of 'qemu-img convert --bitmaps' is to be a convenience for
actions that are already possible through a string of smaller
'qemu-img bitmap' sub-commands. One situation not accounted for
already is that if a source image contains an inconsistent bitmap (for
example, because a qemu process died abruptly before flushing bitmap
state), the user MUST delete those inconsistent bitmaps before
anything else useful can be done with the image.
We don't want to delete inconsistent bitmaps by default: although a
corrupt bitmap is only a loss of optimization rather than a corruption
of user-visible data, it is still nice to require the user to opt in
to the fact that they are aware of the loss of the bitmap. Still,
requiring the user to check 'qemu-img info' to see whether bitmaps are
consistent, then use 'qemu-img bitmap --remove' to remove offenders,
all before using 'qemu-img convert', is a lot more work than just
adding a knob 'qemu-img convert --bitmaps --skip-broken-bitmaps' which
opts in to skipping the broken bitmaps.
After testing the new option, also demonstrate the way to manually fix
things (either deleting bad bitmaps, or re-creating them as empty) so
that it is possible to convert without the option.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1946084
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210709153951.2801666-4-eblake@redhat.com>
[eblake: warning message tweak, test enhancements]
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Waiting until the end of the convert operation (a potentially
time-consuming task) to finally detect that we can't copy a bitmap is
bad, comparing to failing fast up front. Furthermore, this prevents
us from leaving a file behind with a bitmap that is not marked as
inconsistent even though it does not have sane contents.
This fixes the problems exposed in the previous patch to the iotest:
it adds a fast failure up front, and even if we don't fail early, it
ensures that any bitmap we add but do not properly populate is removed
again rather than left behind incomplete.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210709153951.2801666-3-eblake@redhat.com>
[eblake: add a hint to the warning message, simplify name computation]
Reviewed-by: Nir Soffer <nsoffer@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Enhance the test to demonstrate existing less-than-stellar behavior of
qemu-img with a qcow2 image containing an inconsistent bitmap: we
don't diagnose the problem until after copying the entire image (a
potentially long time), and when we do diagnose the failure, we still
end up leaving an empty bitmap in the destination. This mess will be
cleaned up in the next patch.
While at it, rename the test now that we support useful iotest names,
and fix a missing newline in the error message thus exposed.
Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210709153951.2801666-2-eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Nir Soffer <nsoffer@redhat.com>
Set CF_SINGLE_STEP when single-stepping is enabled.
This avoids the need to flush all tb's when turning
single-stepping on or off.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The access internal to tb_cflags() is atomic.
Avoid re-reading it as such for the multiple uses.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
The hook is now unused, with breakpoints checked outside translation.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Trigger breakpoints before beginning translation of a TB
that would begin with a BP. Thus we never generate code
for the BP at all.
Single-step instructions within a page containing a BP so
that we are sure to check each insn for the BP as above.
We no longer need to flush any TBs when changing BPs.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/286
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/404
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/489
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We are going to want two things:
(1) check for breakpoints will want to break out of the loop here,
(2) cflags can only be calculated with pc in hand.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Ensure at registration that all breakpoints are in
code space, not data space.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This will allow a breakpoint hack to move out of AVR's translator.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Return false for RF set, as we do in i386_tr_breakpoint_check.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reuse the code at the bottom of helper_check_breakpoints,
which is what we currently call from *_tr_breakpoint_check.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
New hook to return true when an architectural breakpoint is
to be recognized and false when it should be suppressed.
First use must wait until other pieces are in place.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Request that the one TB returns immediately, so that
we release the exclusive lock as soon as possible.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210717221851.2124573-7-richard.henderson@linaro.org>
Exchange the test in translator_use_goto_tb for CF_NO_GOTO_TB,
and the test in tb_gen_code for setting CF_COUNT_MASK to 1.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210717221851.2124573-6-richard.henderson@linaro.org>
The purpose of suppressing goto_ptr from -d nochain had been
to return to the main loop so that -d cpu would be recognized.
But we now include -d cpu logging in helper_lookup_tb_ptr so
there is no need to exclude goto_ptr.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210717221851.2124573-5-richard.henderson@linaro.org>
Move the -d nochain check to bits on tb->cflags.
These will be used for more than -d nochain shortly.
Set bits during curr_cflags, test them in translator_use_goto_tb,
assert we're not doing anything odd in tcg_gen_goto_tb. The test
in tcg_gen_exit_tb is redundant with the assert for goto_tb_issue_mask.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210717221851.2124573-4-richard.henderson@linaro.org>
We are certain of a page crossing here, entering the
PALcode image, so the call to use_goto_tb that should
have been here will never succeed.
We are shortly going to add an assert to tcg_gen_goto_tb
that would trigger for this case.
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We will shortly have more than a simple member read here,
with stuff not necessarily exposed to exec/exec-all.h.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210717221851.2124573-3-richard.henderson@linaro.org>
The space reserved for CF_COUNT_MASK was overly large.
Reduce to free up cflags bits and eliminate an extra test.
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20210717221851.2124573-2-richard.henderson@linaro.org>
Use trace_mem_get_info instead of trace_mem_build_info,
using the TCGMemOpIdx that we already have. Do this in
the atomic_trace_*_pre function as common subroutines.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Since the last thing that mem.h does is include mem-internal.h,
the symbols are not actually private.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Unify the parameters of atomic_mmu_lookup between cputlb.c and
user-exec.c. Call the function directly, and remove the macros.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
All definitions are now empty.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
All instances of EXTRA_ARGS are now identical.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reduce the amount of code duplication by always passing
the TCGMemOpIdx argument to helper_atomic_*. This is not
currently used for user-only, but it's easy to ignore.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Always provide the atomic interface using TCGMemOpIdx oi
and uintptr_t retaddr. Rename from helper_* to cpu_* so
as to (mostly) match the exec/cpu_ldst.h functions, and
to emphasize that they are not callable from TCG directly.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Use it to avoid some clang-12 -Watomic-alignment errors,
forcing some structures to be aligned and as a pointer when
we have ensured that the address is aligned.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
We now require c11, so the fallbacks are now dead code
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Clang warnings about questionable atomic usage get localized
to the inline function in atomic.h. By using a macro, we get
the full traceback to the original use that caused the warning.
Tested-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
When there are multiple queues attached to the same AIO context,
some requests may experience high latency, since in the worst case
the AIO engine queue is only flushed when it is full (MAX_EVENTS) or
there are no more queues plugged.
Commit 2558cb8dd4 ("linux-aio: increasing MAX_EVENTS to a larger
hardcoded value") changed MAX_EVENTS from 128 to 1024, to increase
the number of in-flight requests. But this change also increased
the potential maximum batch to 1024 elements.
When there is a single queue attached to the AIO context, the issue
is mitigated from laio_io_unplug() that will flush the queue every
time is invoked since there can't be others queue plugged.
Let's use the new `aio-max-batch` IOThread parameter to mitigate
this issue, limiting the number of requests in a batch.
We also define a default value (32): this value is obtained running
some benchmarks and it represents a good tradeoff between the latency
increase while a request is queued and the cost of the io_submit(2)
system call.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20210721094211.69853-4-sgarzare@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
The `aio-max-batch` parameter will be propagated to AIO engines
and it will be used to control the maximum number of queued requests.
When there are in queue a number of requests equal to `aio-max-batch`,
the engine invokes the system call to forward the requests to the kernel.
This parameter allows us to control the maximum batch size to reduce
the latency that requests might accumulate while queued in the AIO
engine queue.
If `aio-max-batch` is equal to 0 (default value), the AIO engine will
use its default maximum batch size value.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20210721094211.69853-3-sgarzare@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Changes in preparation for next patches where we add a new
parameter not related to the poll mechanism.
Let's add two new generic functions (iothread_set_param and
iothread_get_param) that we use to set and get IOThread
parameters.
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Message-id: 20210721094211.69853-2-sgarzare@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
- Fix for tests/acceptance/virtio-gpu.py to match the change in device
name
- Fix for failure caught by tests/acceptance/multiprocess.py
PS: While not a maintainer for the subsystem in PATCH 7, I'm including
it as a one-off to facilitate the landing of the fix as discussed in
the mailing list.
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Merge remote-tracking branch 'remotes/cleber-gitlab/tags/python-next-pull-request' into staging
Acceptance Tests
- Fix for tests/acceptance/virtio-gpu.py to match the change in device
name
- Fix for failure caught by tests/acceptance/multiprocess.py
PS: While not a maintainer for the subsystem in PATCH 7, I'm including
it as a one-off to facilitate the landing of the fix as discussed in
the mailing list.
# gpg: Signature made Wed 21 Jul 2021 00:26:17 BST
# gpg: using RSA key 7ABB96EB8B46B94D5E0FE9BB657E8D33A5F209F3
# gpg: Good signature from "Cleber Rosa <crosa@redhat.com>" [marginal]
# 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: 7ABB 96EB 8B46 B94D 5E0F E9BB 657E 8D33 A5F2 09F3
* remotes/cleber-gitlab/tags/python-next-pull-request:
remote/memory: Replace share parameter with ram_flags
tests/acceptance/virtio-gpu.py: provide kernel and initrd hashes
tests/acceptance/virtio-gpu.py: use virtio-vga-gl
tests/acceptance/virtio-gpu.py: combine kernel command line
tests/acceptance/virtio-gpu.py: combine CPU tags
tests/acceptance/virtio-gpu.py: combine x86_64 arch tags
tests/acceptance/virtio-gpu.py: use require_accelerator()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
By providing kernel and initrd hashes, the test guarantees the
integrity of the images used and avoids the warnings set by
fetch_asset() when hashes are lacking.
Signed-off-by: Cleber Rosa <crosa@redhat.com>
Message-Id: <20210714174051.28164-7-crosa@redhat.com>
Reviewed-by: Willian Rampazzo <willianr@redhat.com>
Signed-off-by: Cleber Rosa <crosa@redhat.com>
