Paolo Bonzini [Mon, 4 Mar 2024 18:16:50 +0000 (13:16 -0500)]
gitlab-ci: add manual job to run Coverity
Add a job that can be run, either manually or on a schedule, to upload
a build to Coverity Scan. The job uses the run-coverity-scan script
in multiple phases of check, download tools and upload, in order to
avoid both wasting time (skip everything if you are above the upload
quota) and avoid filling the log with the progress of downloading
the tools.
The job is intended to run on a scheduled pipeline run, and scheduled
runs will not get any other job. It requires two variables to be in
GitLab CI, COVERITY_TOKEN and COVERITY_EMAIL. Those are already set up
in qemu-project's configuration as protected and masked variables.
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 4 Mar 2024 18:06:57 +0000 (13:06 -0500)]
run-coverity-scan: add --check-upload-only option
Add an option to check if upload is permitted without actually
attempting a build. This can be useful to add a third outcome
beyond success and failure---namely, a CI job can self-cancel
if the uploading quota has been reached.
There is a small change here in that a failure to do the upload
check changes the exit code from 1 to 99. 99 was chosen because
it is what Autotools and Meson use to represent a problem in the
setup (as opposed to a failure in the test).
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 29 Jan 2024 13:21:36 +0000 (14:21 +0100)]
mips: do not list individual devices from configs/
Add new "select" and "imply" directives if needed. The resulting
config-devices.mak files are the same as before.
Builds without default devices will become much smaller
than before, and qtests fail (as expected, though suboptimal)
for mips64-softmmu because most tests do not use -nodefaults,
so remove it from build-without-defaults
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 4 Mar 2024 22:48:17 +0000 (23:48 +0100)]
oslib-posix: fix memory leak in touch_all_pages
touch_all_pages() can return early, before creating threads. In this case,
however, it leaks the MemsetContext that it has allocated at the
beginning of the function.
Reported by Coverity as CID
1534922.
Fixes: 04accf43df8 ("oslib-posix: initialize backend memory objects in parallel", 2024-02-06)
Reviewed-by: Mark Kanda <mark.kanda@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 4 Mar 2024 22:39:02 +0000 (23:39 +0100)]
hw/intc/apic: fix memory leak
deliver_bitmask is allocated on the heap in apic_deliver(), but there
are many paths in the function that return before the corresponding
g_free() is reached. Fix this by switching to g_autofree and, while at
it, also switch to g_new. Do the same in apic_deliver_irq() as well
for consistency.
Fixes: b5ee0468e9d ("apic: add support for x2APIC mode", 2024-02-14)
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Bui Quang Minh <minhquangbui99@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Sven Schnelle [Sat, 2 Mar 2024 21:44:53 +0000 (22:44 +0100)]
hw/scsi/lsi53c895a: stop script on phase mismatch
Netbsd isn't happy with qemu lsi53c895a emulation:
cd0(esiop0:0:2:0): command with tag id 0 reset
esiop0: autoconfiguration error: phase mismatch without command
esiop0: autoconfiguration error: unhandled scsi interrupt, sist=0x80 sstat1=0x0 DSA=0x23a64b1 DSP=0x50
This is because lsi_bad_phase() triggers a phase mismatch, which
stops SCRIPT processing. However, after returning to
lsi_command_complete(), SCRIPT is restarted with lsi_resume_script().
Fix this by adding a return value to lsi_bad_phase(), and only resume
script processing when lsi_bad_phase() didn't trigger a host interrupt.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Tested-by: Helge Deller <deller@gmx.de>
Message-ID: <
20240302214453.
2071388-1-svens@stackframe.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Akihiko Odaki [Sun, 3 Mar 2024 16:25:20 +0000 (01:25 +0900)]
meson: Remove --warn-common ldflag
--warn-common ldflag causes warnings for multiple definitions of
___asan_globals_registered when enabling AddressSanitizer with clang.
The warning is somewhat obsolete so just remove it.
The common block is used to allow duplicate definitions of uninitialized
global variables. In the past, GCC and clang used to place such
variables in a common block by default, which prevented programmers for
noticing accidental duplicate definitions. Commit
49237acdb725 ("Enable
ld flag --warn-common") added --warn-common ldflag so that ld warns in
such a case.
Today, both of GCC and clang don't use common blocks by default[1][2] so
any remaining use of common blocks should be intentional. Remove
--warn-common ldflag to suppress warnings for intentional use of
common blocks.
[1]: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85678
[2]: https://reviews.llvm.org/D75056
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-ID: <
20240304-common-v1-1-
1a2005d1f350@daynix.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Dmitrii Gavrilov [Fri, 3 Nov 2023 10:56:02 +0000 (13:56 +0300)]
system/qdev-monitor: move drain_call_rcu call under if (!dev) in qmp_device_add()
Original goal of addition of drain_call_rcu to qmp_device_add was to cover
the failure case of qdev_device_add. It seems call of drain_call_rcu was
misplaced in
7bed89958bfbf40df what led to waiting for pending RCU callbacks
under happy path too. What led to overall performance degradation of
qmp_device_add.
In this patch call of drain_call_rcu moved under handling of failure of
qdev_device_add.
Signed-off-by: Dmitrii Gavrilov <ds-gavr@yandex-team.ru>
Message-ID: <
20231103105602.90475-1-ds-gavr@yandex-team.ru>
Fixes: 7bed89958bf ("device_core: use drain_call_rcu in in qmp_device_add", 2020-10-12)
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Sven Schnelle [Thu, 29 Feb 2024 20:44:07 +0000 (21:44 +0100)]
hw/scsi/lsi53c895a: add timer to scripts processing
HP-UX 10.20 seems to make the lsi53c895a spinning on a memory location
under certain circumstances. As the SCSI controller and CPU are not
running at the same time this loop will never finish. After some
time, the check loop interrupts with a unexpected device disconnect.
This works, but is slow because the kernel resets the scsi controller.
Instead of signaling UDC, start a timer and exit the loop. Until the
timer fires, the CPU can process instructions which might changes the
memory location.
The limit of instructions is also reduced because scripts running on
the SCSI processor are usually very short. This keeps the time until
the loop is exit short.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Message-ID: <
20240229204407.
1699260-1-svens@stackframe.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Peter Maydell [Wed, 6 Mar 2024 16:56:20 +0000 (16:56 +0000)]
Merge tag 'pull-maintainer-updates-060324-1' of https://gitlab.com/stsquad/qemu into staging
maintainer updates (tests, gdbstub, plugins):
- expand QOS_PATH_MAX_ELEMENT_SIZE to avoid LTO issues
- support fork-follow-mode in gdbstub
- new thread-safe scoreboard API for TCG plugins
- suppress showing opcodes in plugin disassembly
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# gpg: Signature made Wed 06 Mar 2024 12:38:18 GMT
# gpg: using RSA key
6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8 DF35 FBD0 DB09 5A9E 2A44
* tag 'pull-maintainer-updates-060324-1' of https://gitlab.com/stsquad/qemu: (29 commits)
target/riscv: honour show_opcodes when disassembling
target/loongarch: honour show_opcodes when disassembling
disas/hppa: honour show_opcodes
disas: introduce show_opcodes
plugins: cleanup codepath for previous inline operation
plugins: remove non per_vcpu inline operation from API
contrib/plugins/howvec: migrate to new per_vcpu API
contrib/plugins/hotblocks: migrate to new per_vcpu API
tests/plugin/bb: migrate to new per_vcpu API
tests/plugin/insn: migrate to new per_vcpu API
tests/plugin/mem: migrate to new per_vcpu API
tests/plugin: add test plugin for inline operations
plugins: add inline operation per vcpu
plugins: implement inline operation relative to cpu_index
plugins: define qemu_plugin_u64
plugins: scoreboard API
tests/tcg: Add two follow-fork-mode tests
gdbstub: Implement follow-fork-mode child
gdbstub: Introduce gdb_handle_detach_user()
gdbstub: Introduce gdb_handle_set_thread_user()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alex Bennée [Tue, 5 Mar 2024 12:10:05 +0000 (12:10 +0000)]
target/riscv: honour show_opcodes when disassembling
This makes the output suitable when used for plugins.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-30-alex.bennee@linaro.org>
Alex Bennée [Tue, 5 Mar 2024 12:10:04 +0000 (12:10 +0000)]
target/loongarch: honour show_opcodes when disassembling
This makes the output suitable when used for plugins.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-29-alex.bennee@linaro.org>
Alex Bennée [Tue, 5 Mar 2024 12:10:03 +0000 (12:10 +0000)]
disas/hppa: honour show_opcodes
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-28-alex.bennee@linaro.org>
Alex Bennée [Tue, 5 Mar 2024 12:10:02 +0000 (12:10 +0000)]
disas: introduce show_opcodes
For plugins we don't expect the raw opcodes in the disassembly. We
already deal with this by hand crafting our capstone call but for
other diassemblers we need a flag. Introduce show_opcodes which
defaults to off.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-27-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:10:01 +0000 (12:10 +0000)]
plugins: cleanup codepath for previous inline operation
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-13-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-26-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:10:00 +0000 (12:10 +0000)]
plugins: remove non per_vcpu inline operation from API
Now we have a thread-safe equivalent of inline operation, and that all
plugins were changed to use it, there is no point to keep the old API.
In more, it will help when we implement more functionality (conditional
callbacks), as we can assume that we operate on a scoreboard.
API version bump was already done as part of this series.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-12-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-25-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:09:59 +0000 (12:09 +0000)]
contrib/plugins/howvec: migrate to new per_vcpu API
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-11-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-24-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:09:58 +0000 (12:09 +0000)]
contrib/plugins/hotblocks: migrate to new per_vcpu API
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-10-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-23-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:09:57 +0000 (12:09 +0000)]
tests/plugin/bb: migrate to new per_vcpu API
Reviewed-by: Luc Michel <luc.michel@amd.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-9-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-22-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:09:56 +0000 (12:09 +0000)]
tests/plugin/insn: migrate to new per_vcpu API
Reviewed-by: Luc Michel <luc.michel@amd.com>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-8-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-21-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:09:55 +0000 (12:09 +0000)]
tests/plugin/mem: migrate to new per_vcpu API
Reviewed-by: Luc Michel <luc.michel@amd.com>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-7-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-20-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:09:54 +0000 (12:09 +0000)]
tests/plugin: add test plugin for inline operations
For now, it simply performs instruction, bb and mem count, and ensure
that inline vs callback versions have the same result. Later, we'll
extend it when new inline operations are added.
Use existing plugins to test everything works is a bit cumbersome, as
different events are treated in different plugins. Thus, this new one.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-6-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-19-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:09:53 +0000 (12:09 +0000)]
plugins: add inline operation per vcpu
Extends API with three new functions:
qemu_plugin_register_vcpu_{tb, insn, mem}_exec_inline_per_vcpu().
Those functions takes a qemu_plugin_u64 as input.
This allows to have a thread-safe and type-safe version of inline
operations.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-5-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-18-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:09:52 +0000 (12:09 +0000)]
plugins: implement inline operation relative to cpu_index
Instead of working on a fixed memory location, allow to address it based
on cpu_index, an element size and a given offset.
Result address: ptr + offset + cpu_index * element_size.
With this, we can target a member in a struct array from a base pointer.
Current semantic is not modified, thus inline operation still targets
always the same memory location.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-4-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-17-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:09:51 +0000 (12:09 +0000)]
plugins: define qemu_plugin_u64
Additionally to the scoreboard, we define a qemu_plugin_u64, which is a
simple struct holding a pointer to a scoreboard, and a given offset.
This allows to have a scoreboard containing structs, without having to
bring offset to operate on a specific field.
Since most of the plugins are simply collecting a sum of per-cpu values,
qemu_plugin_u64 directly support this operation as well.
All inline operations defined later will use a qemu_plugin_u64 as input.
New functions:
- qemu_plugin_u64_add
- qemu_plugin_u64_get
- qemu_plugin_u64_set
- qemu_plugin_u64_sum
New macros:
- qemu_plugin_scoreboard_u64
- qemu_plugin_scoreboard_u64_in_struct
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-3-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-16-alex.bennee@linaro.org>
Pierrick Bouvier [Tue, 5 Mar 2024 12:09:50 +0000 (12:09 +0000)]
plugins: scoreboard API
We introduce a cpu local storage, automatically managed (and extended)
by QEMU itself. Plugin allocate a scoreboard, and don't have to deal
with how many cpus are launched.
This API will be used by new inline functions but callbacks can benefit
from this as well. This way, they can operate without a global lock for
simple operations.
At any point during execution, any scoreboard will be dimensioned with
at least qemu_plugin_num_vcpus entries.
New functions:
- qemu_plugin_scoreboard_find
- qemu_plugin_scoreboard_free
- qemu_plugin_scoreboard_new
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Message-Id: <
20240304130036.124418-2-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-15-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:49 +0000 (12:09 +0000)]
tests/tcg: Add two follow-fork-mode tests
Add follow-fork-mode child and and follow-fork-mode parent tests.
Check for the obvious pitfalls, such as lingering breakpoints,
catchpoints, and single-step mode.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20240219141628.246823-13-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-14-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:48 +0000 (12:09 +0000)]
gdbstub: Implement follow-fork-mode child
Currently it's not possible to use gdbstub for debugging linux-user
code that runs in a forked child, which is normally done using the `set
follow-fork-mode child` GDB command. Purely on the protocol level, the
missing piece is the fork-events feature.
However, a deeper problem is supporting $Hg switching between different
processes - right now it can do only threads. Implementing this for the
general case would be quite complicated, but, fortunately, for the
follow-fork-mode case there are a few factors that greatly simplify
things: fork() happens in the exclusive section, there are only two
processes involved, and before one of them is resumed, the second one
is detached.
This makes it possible to implement a simplified scheme: the parent and
the child share the gdbserver socket, it's used only by one of them at
any given time, which is coordinated through a separate socketpair. The
processes can read from the gdbserver socket only one byte at a time,
which is not great for performance, but, fortunately, the
follow-fork-mode handling involves only a few messages.
Advertise the fork-events support, and remember whether GDB has it
as well. Implement the state machine that is initialized on fork(),
decides the current owner of the gdbserver socket, and is terminated
when one of the two processes is detached. The logic for the parent and
the child is the same, only the initial state is different.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20240219141628.246823-12-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-13-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:47 +0000 (12:09 +0000)]
gdbstub: Introduce gdb_handle_detach_user()
The upcoming follow-fork-mode child support needs to perform certain
actions when GDB detaches from the stopped parent or the stopped child.
Introduce a user-specific hook for this.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20240219141628.246823-11-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-12-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:46 +0000 (12:09 +0000)]
gdbstub: Introduce gdb_handle_set_thread_user()
The upcoming follow-fork-mode child support needs to perform certain
actions when GDB switches between the stopped parent and the stopped
child. Introduce a user-specific hook for this.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20240219141628.246823-10-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-11-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:45 +0000 (12:09 +0000)]
gdbstub: Introduce gdb_handle_query_supported_user()
The upcoming follow-fork-mode child support requires advertising the
fork-events feature, which is user-specific. Introduce a user-specific
hook for this.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20240219141628.246823-9-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-10-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:44 +0000 (12:09 +0000)]
gdbstub: Call gdbserver_fork() both in parent and in child
The upcoming follow-fork-mode child support requires post-fork message
exchange between the parent and the child. Prepare gdbserver_fork() for
this purpose. Rename it to gdbserver_fork_end() to better reflect its
purpose.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20240219141628.246823-8-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-9-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:43 +0000 (12:09 +0000)]
{linux,bsd}-user: Pass pid to gdbserver_fork()
The upcoming follow-fork-mode child support requires knowing the child
pid. Pass it down.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20240219141628.246823-7-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-8-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:42 +0000 (12:09 +0000)]
{linux,bsd}-user: Pass pid to fork_end()
The upcoming follow-fork-mode child support requires knowing the child
pid. Pass it down.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20240219141628.246823-6-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-7-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:41 +0000 (12:09 +0000)]
gdbstub: Introduce gdbserver_fork_start()
The upcoming follow-fork-mode child support requires knowing when
fork() is about to happen in order to initialize its state. Add a hook
for that.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20240219141628.246823-5-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-6-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:40 +0000 (12:09 +0000)]
{linux,bsd}-user: Update ts_tid after fork()
Currently ts_tid contains the parent tid after fork(), which is not
correct. So far it has not affected anything, but the upcoming
follow-fork-mode child support relies on the correct value, so fix it.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Message-Id: <
20240219141628.246823-4-iii@linux.ibm.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-5-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:39 +0000 (12:09 +0000)]
{linux,bsd}-user: Introduce get_task_state()
A CPU's TaskState is stored in the CPUState's void *opaque field,
accessing which is somewhat awkward due to having to use a cast.
Introduce a wrapper and use it everywhere.
Suggested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <
20240219141628.246823-3-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-4-alex.bennee@linaro.org>
Ilya Leoshkevich [Tue, 5 Mar 2024 12:09:38 +0000 (12:09 +0000)]
gdbstub: Support disablement in a multi-threaded process
The upcoming follow-fork-mode child support will require disabling
gdbstub in the parent process, which may have multiple threads (which
are represented as CPUs).
Loop over all CPUs in order to remove breakpoints and disable
single-step. Move the respective code into a separate function.
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <
20240219141628.246823-2-iii@linux.ibm.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-3-alex.bennee@linaro.org>
Alex Bennée [Tue, 5 Mar 2024 12:09:37 +0000 (12:09 +0000)]
tests: bump QOS_PATH_MAX_ELEMENT_SIZE again
We "fixed" a bug with LTO builds with
100c459f194 (tests/qtest: bump
up QOS_PATH_MAX_ELEMENT_SIZE) but it seems it has triggered again.
The array is sized according to the maximum anticipated length of a
path on the graph. However, the worst case for a depth-first search is
to push all nodes on the graph. So it's not really LTO, it depends on
the ordering of the constructors.
Lets be more assertive raising QOS_PATH_MAX_ELEMENT_SIZE to make it go
away again.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1186 (again)
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <
20240305121005.
3528075-2-alex.bennee@linaro.org>
Peter Maydell [Tue, 5 Mar 2024 13:54:54 +0000 (13:54 +0000)]
Merge tag 'pull-target-arm-
20240305' of https://git.linaro.org/people/pmaydell/qemu-arm into staging
target-arm queue:
* raspi: Implement Broadcom Serial Controller (BSC) for BCM2835 boards
* hw/char/pl011: Add support for loopback
* STM32L4x5: Implement RCC clock control device
* target/arm: Do memory type alignment checks
* atomic.h: Reword confusing comment for qatomic_cmpxchg
* qemu-options.hx: Don't claim "-serial" has limit of 4 serial ports
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# gpg: Signature made Tue 05 Mar 2024 13:52:08 GMT
# gpg: using RSA key
E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg: issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# gpg: aka "Peter Maydell <peter@archaic.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* tag 'pull-target-arm-
20240305' of https://git.linaro.org/people/pmaydell/qemu-arm:
qemu-options.hx: Don't claim "-serial" has limit of 4 serial ports
atomic.h: Reword confusing comment for qatomic_cmpxchg
target/arm: Do memory type alignment check when translation enabled
target/arm: Do memory type alignment check when translation disabled
accel/tcg: Add TLB_CHECK_ALIGNED
accel/tcg: Add tlb_fill_flags to CPUTLBEntryFull
exec/memattrs: Remove target_tlb_bit*
target/arm: Support 32-byte alignment in pow2_align
tests/qtest/stm32l4x5_rcc-test.c: Add tests for the STM32L4x5_RCC
hw/arm/stm32l4x5_soc.c: Use the RCC Sysclk
hw/misc/stm32l4x5_rcc: Add write protections to CR register
hw/misc/stm32l4x5_rcc: Handle Register Updates
hw/misc/stm32l4x5_rcc: Initialize PLLs and clock multiplexers
hw/misc/stm32l4x5_rcc: Add an internal PLL Clock object
hw/misc/stm32l4x5_rcc: Add an internal clock multiplexer object
hw/misc/stm32l4x5_rcc: Implement STM32L4x5_RCC skeleton
hw/char/pl011: Add support for loopback
tests/qtest: Add testcase for BCM2835 BSC
hw/arm: Connect BSC to BCM2835 board as I2C0, I2C1 and I2C2
hw/i2c: Implement Broadcom Serial Controller (BSC)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Steven Shen [Tue, 5 Mar 2024 01:30:16 +0000 (09:30 +0800)]
qemu-options.hx: Don't claim "-serial" has limit of 4 serial ports
Before v2.12, the implementation of serial ports was limited to
a value of MAX_SERIAL_PORTS = 4. We now dynamically allocate
the data structures for serial ports, so this limit is no longer
present, but the documentation for the -serial options still reads:
"This option can be used several times to simulate up to 4 serial ports."
Update to "This option can be used several times to simulate
multiple serial ports." to avoid misleading.
Signed-off-by: Steven Shen <steven.shen@jaguarmicro.com>
Message-id:
20240305013016.2268-1-steven.shen@jaguarmicro.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: tweaked commit message]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 23 Feb 2024 18:20:35 +0000 (18:20 +0000)]
atomic.h: Reword confusing comment for qatomic_cmpxchg
The qatomic_cmpxchg() and qatomic_cmpxchg__nocheck() macros have
a comment that reads:
Returns the eventual value, failed or not
This is somewhere between cryptic and wrong, since the value actually
returned is the value that was in memory before the cmpxchg. Reword
to match how we describe these macros in atomics.rst.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Message-id:
20240223182035.
1048541-1-peter.maydell@linaro.org
Richard Henderson [Fri, 1 Mar 2024 20:41:10 +0000 (10:41 -1000)]
target/arm: Do memory type alignment check when translation enabled
If translation is enabled, and the PTE memory type is Device,
enable checking alignment via TLB_CHECK_ALIGNMENT. While the
check is done later than it should be per the ARM, it's better
than not performing the check at all.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20240301204110.656742-7-richard.henderson@linaro.org
[PMM: tweaks to comment text]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Fri, 1 Mar 2024 20:41:09 +0000 (10:41 -1000)]
target/arm: Do memory type alignment check when translation disabled
If translation is disabled, the default memory type is Device, which
requires alignment checking. This is more optimally done early via
the MemOp given to the TCG memory operation.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reported-by: Idan Horowitz <idan.horowitz@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20240301204110.656742-6-richard.henderson@linaro.org
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/1204
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Fri, 1 Mar 2024 20:41:08 +0000 (10:41 -1000)]
accel/tcg: Add TLB_CHECK_ALIGNED
This creates a per-page method for checking of alignment.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20240301204110.656742-5-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Fri, 1 Mar 2024 20:41:07 +0000 (10:41 -1000)]
accel/tcg: Add tlb_fill_flags to CPUTLBEntryFull
Allow the target to set tlb flags to apply to all of the
comparators. Remove MemTxAttrs.byte_swap, as the bit is
not relevant to memory transactions, only the page mapping.
Adjust target/sparc to set TLB_BSWAP directly.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20240301204110.656742-4-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Fri, 1 Mar 2024 20:41:06 +0000 (10:41 -1000)]
exec/memattrs: Remove target_tlb_bit*
These fields are no longer used since
937f224559.
Target specific extensions to the page tables should be done
with TARGET_PAGE_ENTRY_EXTRA.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20240301204110.656742-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Richard Henderson [Fri, 1 Mar 2024 20:41:05 +0000 (10:41 -1000)]
target/arm: Support 32-byte alignment in pow2_align
Now that we have removed TARGET_PAGE_BITS_MIN-6 from
TLB_FLAGS_MASK, we can test for 32-byte alignment.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id:
20240301204110.656742-2-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Arnaud Minier [Sun, 3 Mar 2024 14:06:43 +0000 (15:06 +0100)]
tests/qtest/stm32l4x5_rcc-test.c: Add tests for the STM32L4x5_RCC
Tests:
- the ability to change the sysclk of the device
- the ability to enable/disable/configure the PLLs
- if the clock multiplexers work
- the register flags and the generation of irqs
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-id:
20240303140643.81957-9-arnaud.minier@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Arnaud Minier [Sun, 3 Mar 2024 14:06:42 +0000 (15:06 +0100)]
hw/arm/stm32l4x5_soc.c: Use the RCC Sysclk
Now that we can generate reliable clock frequencies from the RCC, remove
the hacky definition of the sysclk in the b_l475e_iot01a initialisation
code and use the correct RCC clock.
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
20240303140643.81957-8-arnaud.minier@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Arnaud Minier [Sun, 3 Mar 2024 14:06:41 +0000 (15:06 +0100)]
hw/misc/stm32l4x5_rcc: Add write protections to CR register
Add write protections for the fields in the CR register.
PLL configuration write protections (among others) have not
been handled yet. This is planned in a future patch set.
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Message-id:
20240303140643.81957-7-arnaud.minier@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Arnaud Minier [Sun, 3 Mar 2024 14:06:40 +0000 (15:06 +0100)]
hw/misc/stm32l4x5_rcc: Handle Register Updates
Update the RCC state and propagate frequency changes when writing to the
RCC registers. Currently, ICSCR, CIER, the reset registers and the stop
mode registers are not implemented.
Some fields have not been implemented due to uncertainty about
how to handle them (Like the clock security system or bypassing
mecanisms).
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Message-id:
20240303140643.81957-6-arnaud.minier@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Arnaud Minier [Sun, 3 Mar 2024 14:06:39 +0000 (15:06 +0100)]
hw/misc/stm32l4x5_rcc: Initialize PLLs and clock multiplexers
Instantiate the whole clock tree and using the Clock multiplexers and
the PLLs defined in the previous commits. This allows to statically
define the clock tree and easily follow the clock signal from one end to
another.
Also handle three-phase reset now that we have defined a known base
state for every object.
(Reset handling based on hw/misc/zynq_sclr.c)
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Message-id:
20240303140643.81957-5-arnaud.minier@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Arnaud Minier [Sun, 3 Mar 2024 14:06:38 +0000 (15:06 +0100)]
hw/misc/stm32l4x5_rcc: Add an internal PLL Clock object
This object represents the PLLs and their channels. The PLLs allow for a
more fine-grained control of the clocks frequency.
The migration handling is based on hw/misc/zynq_sclr.c.
Three phase reset will be handled in a later commit.
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Message-id:
20240303140643.81957-4-arnaud.minier@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Arnaud Minier [Sun, 3 Mar 2024 14:06:37 +0000 (15:06 +0100)]
hw/misc/stm32l4x5_rcc: Add an internal clock multiplexer object
This object is used to represent every multiplexer in the clock tree as
well as every clock output, every presecaler, frequency multiplier, etc.
This allows to use a generic approach for every component of the clock tree
(except the PLLs).
The migration handling is based on hw/misc/zynq_sclr.c.
Three phase reset will be handled in a later commit.
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Message-id:
20240303140643.81957-3-arnaud.minier@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Arnaud Minier [Sun, 3 Mar 2024 14:06:36 +0000 (15:06 +0100)]
hw/misc/stm32l4x5_rcc: Implement STM32L4x5_RCC skeleton
Add the necessary files to add a simple RCC implementation with just
reads from and writes to registers. Also instantiate the RCC in the
STM32L4x5_SoC. It is needed for accurate emulation of all the SoC
clocks and timers.
Signed-off-by: Arnaud Minier <arnaud.minier@telecom-paris.fr>
Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
20240303140643.81957-2-arnaud.minier@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tong Ho [Tue, 27 Feb 2024 05:48:55 +0000 (21:48 -0800)]
hw/char/pl011: Add support for loopback
This patch adds loopback for sent characters, sent BREAK,
and modem-control signals.
Loopback of send and modem-control is often used for uart
self tests in real hardware but missing from current pl011
model, resulting in self-test failures when running in QEMU.
This implementation matches what is observed in real pl011
hardware placed in loopback mode:
1. Input characters and BREAK events from serial backend
are ignored, but
2. Both TX characters and BREAK events are still sent to
serial backend, in addition to be looped back to RX.
Signed-off-by: Tong Ho <tong.ho@amd.com>
Signed-off-by: Francisco Iglesias <francisco.iglesias@amd.com>
Message-id:
20240227054855.44204-1-tong.ho@amd.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Rayhan Faizel [Sat, 24 Feb 2024 19:10:38 +0000 (00:40 +0530)]
tests/qtest: Add testcase for BCM2835 BSC
Simple testcase for validating proper operation of read and write for all
three BSC controllers.
Signed-off-by: Rayhan Faizel <rayhan.faizel@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
20240224191038.
2409945-4-rayhan.faizel@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Rayhan Faizel [Sat, 24 Feb 2024 19:10:37 +0000 (00:40 +0530)]
hw/arm: Connect BSC to BCM2835 board as I2C0, I2C1 and I2C2
BCM2835 has three I2C controllers. All of them share the same interrupt line.
Signed-off-by: Rayhan Faizel <rayhan.faizel@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id:
20240224191038.
2409945-3-rayhan.faizel@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Rayhan Faizel [Sat, 24 Feb 2024 19:10:36 +0000 (00:40 +0530)]
hw/i2c: Implement Broadcom Serial Controller (BSC)
A few deficiencies in the current device model need to be noted.
1. FIFOs are not used. All sends and receives are done directly.
2. Repeated starts are not emulated. Repeated starts can be triggered in real
hardware by sending a new read transfer request in the window time between
transfer active set of write transfer request and done bit set of the same.
Signed-off-by: Rayhan Faizel <rayhan.faizel@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
20240224191038.
2409945-2-rayhan.faizel@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 5 Mar 2024 11:20:15 +0000 (11:20 +0000)]
Merge tag 'pull-qapi-2024-03-04' of https://repo.or.cz/qemu/armbru into staging
QAPI patches patches for 2024-03-04
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# gpg: Signature made Mon 04 Mar 2024 06:24:34 GMT
# gpg: using RSA key
354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg: issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867 4E5F 3870 B400 EB91 8653
* tag 'pull-qapi-2024-03-04' of https://repo.or.cz/qemu/armbru:
migration: simplify exec migration functions
qapi: New strv_from_str_list()
qapi: New QAPI_LIST_LENGTH()
docs/devel/writing-monitor-commands: Minor improvements
docs/devel/writing-monitor-commands: Repair a decade of rot
qapi: Reject "Returns" section when command doesn't return anything
qga/qapi-schema: Fix guest-set-memory-blocks documentation
qga/qapi-schema: Tweak documentation of fsfreeze commands
qga/qapi-schema: Clean up "Returns" sections
qga/qapi-schema: Delete useless "Returns" sections
qga/qapi-schema: Move error documentation to new "Errors" sections
qapi/yank: Tweak @yank's error description for consistency
qapi: Clean up "Returns" sections
qapi: Delete useless "Returns" sections
qapi: Move error documentation to new "Errors" sections
qapi: New documentation section tag "Errors"
qapi: Slightly clearer error message for invalid "Returns" section
qapi: Memorize since & returns sections
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 5 Mar 2024 11:19:58 +0000 (11:19 +0000)]
Merge tag 'migration-next-pull-request' of https://gitlab.com/peterx/qemu into staging
Migartion pull request for
20240304
- Bryan's fix on multifd compression level API
- Fabiano's mapped-ram series (base + multifd only)
- Steve's amend on cpr document in qapi/
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# gpg: Signature made Mon 04 Mar 2024 01:26:02 GMT
# gpg: using EDDSA key
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# gpg: issuer "peterx@redhat.com"
# gpg: Good signature from "Peter Xu <xzpeter@gmail.com>" [marginal]
# gpg: aka "Peter Xu <peterx@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: B918 4DC2 0CC4 57DA CF7D D1A9 3B5F CCCD F3AB D706
* tag 'migration-next-pull-request' of https://gitlab.com/peterx/qemu: (27 commits)
migration/multifd: Document two places for mapped-ram
tests/qtest/migration: Add a multifd + mapped-ram migration test
migration/multifd: Add mapped-ram support to fd: URI
migration/multifd: Support incoming mapped-ram stream format
migration/multifd: Support outgoing mapped-ram stream format
migration/multifd: Prepare multifd sync for mapped-ram migration
migration/multifd: Add incoming QIOChannelFile support
migration/multifd: Add outgoing QIOChannelFile support
migration/multifd: Add a wrapper for channels_created
migration/multifd: Allow receiving pages without packets
migration/multifd: Allow multifd without packets
migration/multifd: Decouple recv method from pages
migration/multifd: Rename MultiFDSend|RecvParams::data to compress_data
tests/qtest/migration: Add tests for mapped-ram file-based migration
migration/ram: Add incoming 'mapped-ram' migration
migration/ram: Add outgoing 'mapped-ram' migration
migration: Add mapped-ram URI compatibility check
migration/ram: Introduce 'mapped-ram' migration capability
migration/qemu-file: add utility methods for working with seekable channels
io: fsync before closing a file channel
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
# Conflicts:
# migration/ram.c
Peter Maydell [Tue, 5 Mar 2024 09:45:22 +0000 (09:45 +0000)]
Merge tag 'pull-tcg-
20240301' of https://gitlab.com/rth7680/qemu into staging
linux-user: Rewrite elf coredump
tcg/aarch64: Apple does not align __int128_t in even registers
accel/tcg: Fixes for page tables in mmio memory
linux-user: Remove qemu_host_page_{size,mask}, HOST_PAGE_ALIGN
migration: Remove qemu_host_page_size
hw/tpm: Remove qemu_host_page_size
softmmu: Remove qemu_host_page_{size,mask}, HOST_PAGE_ALIGN
linux-user: Split and reorganize target_mmap.
*-user: Deprecate and disable -p pagesize
linux-user: Allow TARGET_PAGE_BITS_VARY
target/alpha: Enable TARGET_PAGE_BITS_VARY for user-only
target/arm: Enable TARGET_PAGE_BITS_VARY for AArch64 user-only
target/ppc: Enable TARGET_PAGE_BITS_VARY for user-only
linux-user: Remove pgb_dynamic alignment assertion
tcg/optimize: fix uninitialized variable
linux-user: Rewrite shmat
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# gpg: Signature made Fri 01 Mar 2024 23:04:52 GMT
# gpg: using RSA key
7A481E78868B4DB6A85A05C064DF38E8AF7E215F
# gpg: issuer "richard.henderson@linaro.org"
# gpg: Good signature from "Richard Henderson <richard.henderson@linaro.org>" [full]
# Primary key fingerprint: 7A48 1E78 868B 4DB6 A85A 05C0 64DF 38E8 AF7E 215F
* tag 'pull-tcg-
20240301' of https://gitlab.com/rth7680/qemu: (60 commits)
tests/tcg: Check that shmat() does not break /proc/self/maps
linux-user: Rewrite target_shmat
linux-user: Add strace for shmat
linux-user/loongarch64: Remove TARGET_FORCE_SHMLBA
linux-user/x86_64: Handle the vsyscall page in open_self_maps_{2,4}
tcg/optimize: fix uninitialized variable
linux-user: Remove pgb_dynamic alignment assertion
target/alpha: Enable TARGET_PAGE_BITS_VARY for user-only
target/ppc: Enable TARGET_PAGE_BITS_VARY for user-only
linux-user: Bound mmap_min_addr by host page size
target/arm: Enable TARGET_PAGE_BITS_VARY for AArch64 user-only
linux-user: Allow TARGET_PAGE_BITS_VARY
accel/tcg: Disconnect TargetPageDataNode from page size
cpu: Remove page_size_init
*-user: Deprecate and disable -p pagesize
tests/tcg: Extend file in linux-madvise.c
tests/tcg: Remove run-test-mmap-*
linux-user: Split out mmap_h_gt_g
linux-user: Split out mmap_h_lt_g
linux-user: Split out mmap_h_eq_g
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 4 Mar 2024 16:01:33 +0000 (16:01 +0000)]
Merge tag 'hppa-latest-pull-request' of https://github.com/hdeller/qemu-hppa into staging
HPPA64 updates
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# gpg: Signature made Sun 03 Mar 2024 05:46:29 GMT
# gpg: using EDDSA key
BCE9123E1AD29F07C049BBDEF712B510A23A0F5F
# gpg: Good signature from "Helge Deller <deller@gmx.de>" [unknown]
# gpg: aka "Helge Deller <deller@kernel.org>" [unknown]
# 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: 4544 8228 2CD9 10DB EF3D 25F8 3E5F 3D04 A7A2 4603
# Subkey fingerprint: BCE9 123E 1AD2 9F07 C049 BBDE F712 B510 A23A 0F5F
* tag 'hppa-latest-pull-request' of https://github.com/hdeller/qemu-hppa:
roms/hppa: Add build rules for hppa-firmware
pc-bios/README: Add information about hppa-firmware
pc-bios/meson: Add hppa-firmware64.img blob
target/hppa: Restore unwind_breg before calculating ior
target: hppa: Fix unaligned double word accesses for hppa64
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Daniel P. Berrangé [Mon, 4 Mar 2024 14:44:56 +0000 (14:44 +0000)]
gitlab: update FreeBSD Cirrus CI image to 13.3
The 13.2 images have been deleted from gcloud
Cc: qemu-stable@nongnu.org
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
20240304144456.
3825935-3-berrange@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Daniel P. Berrangé [Mon, 4 Mar 2024 14:44:55 +0000 (14:44 +0000)]
meson: detect broken clang 17 with -fzero-call-used-regs
Clang 17 will segv if given -fzero-call-used-regs and optimization
is enabled. Since upstream hasn't triaged the bug, distros are
increasingly shipping with broken Clang.
https://github.com/llvm/llvm-project/issues/75168
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=277474
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id:
20240304144456.
3825935-2-berrange@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Thomas Huth [Mon, 4 Mar 2024 13:04:03 +0000 (14:04 +0100)]
docs/conf.py: Remove usage of distutils
The macOS jobs in our CI recently started failing, complaining that
the distutils module is not available anymore. And indeed, according to
https://peps.python.org/pep-0632/ it's been deprecated since a while
and now likely got removed in recent Python versions.
Fortunately, we only use it for a version check via LooseVersion here
which we don't really need anymore - according to Repology.org, these
are the versions of sphinx-rtd-theme that are currently used by the
various distros:
centos_stream_8: 0.3.1
centos_stream_9: 0.5.1
fedora_38: 1.1.1
fedora_39: 1.2.2
freebsd: 1.0.0
haikuports_master: 1.2.1
openbsd: 1.2.2
opensuse_leap_15_5: 0.5.1
pkgsrc_current: 2.0.0
debian_11: 0.5.1
debian_12: 1.2.0
ubuntu_20_04: 0.4.3
ubuntu_22_04: 1.0.0
ubuntu_24_04: 2.0.0
So except for CentOS 8, all distros are using a newer version of
sphinx-rtd-theme, and for CentOS 8 we don't support compiling with
the Sphinx of the distro anymore anyway, since it's based on the
Python 3.6 interpreter there. For compiling on CentOS 8, you have
to use the alternative Python 3.8 interpreter which comes without
Sphinx, so that needs the Sphinx installed via pip in the venv
instead, and that is using a newer version, too, according to our
pythondeps.toml file.
Thus we can simply drop the version check now to get rid of the
distutils dependency here.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Message-id:
20240304130403.129543-1-thuth@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Steve Sistare [Tue, 27 Feb 2024 15:33:21 +0000 (16:33 +0100)]
migration: simplify exec migration functions
Simplify the exec migration code by using list utility functions.
As a side effect, this also fixes a minor memory leak. On function return,
"g_auto(GStrv) argv" frees argv and each element, which is wrong, because
the function does not own the individual elements. To compensate, the code
uses g_steal_pointer which NULLs argv and prevents the destructor from
running, but argv is leaked.
Fixes: cbab4face57b ("migration: convert exec backend ...")
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Message-ID: <
20240227153321.467343-4-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Steve Sistare [Tue, 27 Feb 2024 15:33:20 +0000 (16:33 +0100)]
qapi: New strv_from_str_list()
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <
20240227153321.467343-3-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Steve Sistare [Tue, 27 Feb 2024 15:33:19 +0000 (16:33 +0100)]
qapi: New QAPI_LIST_LENGTH()
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-ID: <
20240227153321.467343-2-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:56:17 +0000 (12:56 +0100)]
docs/devel/writing-monitor-commands: Minor improvements
Avoid "JSON" when talking about the QAPI schema syntax. Capitalize
QEMU. Don't claim all HMP commands live in monitor/hmp-cmds.c (this
was never true). Fix punctuation and drop inappropriate "the" here
and there.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227115617.237875-3-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:56:16 +0000 (12:56 +0100)]
docs/devel/writing-monitor-commands: Repair a decade of rot
The tutorial doesn't match reality since at least 2013. Repairing it
involves fixing the following issues:
* Update for commit
6d327171551 (aio / timers: Remove alarm timers):
replace the broken examples. Instead of having one for returning a
struct and another for returning a list of structs, do just one for
the latter. This resolves the FIXME added in commit
e218052f928 (aio / timers: De-document -clock) back in 2014.
* Update for commit
895a2a80e0e (qapi: Use 'struct' instead of 'type'
in schema).
* Update for commit
3313b6124b5 (qapi: add qapi2texi script): add
required documentation to the schema snippets, and drop section
"Command Documentation".
* Update for commit
a3c45b3e629 (qapi: New special feature flag
"unstable"): supply the required feature, deemphasize the x- prefix.
* Update for commit
dd98234c059 (qapi: introduce x-query-roms QMP
command): rephrase from "add new command" to "examine existing
command".
* Update for commit
9492718b7c0 (qapi misc: Elide redundant has_FOO in
generated C): hello-world's message argument no longer comes with a
has_message, add a second argument that does.
* Update for moved and renamed files.
While there, update QMP version output to current output.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227115617.237875-2-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[Whitespace tidied up, typo fixed]
Markus Armbruster [Tue, 27 Feb 2024 11:39:21 +0000 (12:39 +0100)]
qapi: Reject "Returns" section when command doesn't return anything
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-14-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:20 +0000 (12:39 +0100)]
qga/qapi-schema: Fix guest-set-memory-blocks documentation
Documentation claims the command can "return NULL". "NULL" doesn't
exist in JSON. "null" does, but the command returns lists, and null
isn't. Correct documentation to "return an empty list".
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-13-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:19 +0000 (12:39 +0100)]
qga/qapi-schema: Tweak documentation of fsfreeze commands
"Returns:" sections of guest-fsfreeze-freeze and
guest-fsfreeze-freeze-list describe both command behavior and success
response. Move behavior out, so "Returns:" is only about success
response.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-12-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:18 +0000 (12:39 +0100)]
qga/qapi-schema: Clean up "Returns" sections
Drop "on success" where it is redundant with "Returns:".
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-11-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:17 +0000 (12:39 +0100)]
qga/qapi-schema: Delete useless "Returns" sections
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-10-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:16 +0000 (12:39 +0100)]
qga/qapi-schema: Move error documentation to new "Errors" sections
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-9-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:15 +0000 (12:39 +0100)]
qapi/yank: Tweak @yank's error description for consistency
Phrase it like "If <condition>, <error>", like we do elsewhere.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-8-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:14 +0000 (12:39 +0100)]
qapi: Clean up "Returns" sections
Drop list markup, since there's just one item left.
Drop "on success" where it is redundant with "Returns:".
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-7-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:13 +0000 (12:39 +0100)]
qapi: Delete useless "Returns" sections
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-6-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:12 +0000 (12:39 +0100)]
qapi: Move error documentation to new "Errors" sections
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-5-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:11 +0000 (12:39 +0100)]
qapi: New documentation section tag "Errors"
We use section "Returns" for documenting both success and error
response of commands.
I intend to generate better command success response documentation.
Easier when "Returns" documents just he success response.
Create new section tag "Errors". The next two commits will move error
response documentation from "Returns" sections to "Errors" sections.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-4-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:10 +0000 (12:39 +0100)]
qapi: Slightly clearer error message for invalid "Returns" section
Change "'Returns:' is only valid for commands" to "'Returns' section
is only valid for commands".
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-3-armbru@redhat.com>
Markus Armbruster [Tue, 27 Feb 2024 11:39:09 +0000 (12:39 +0100)]
qapi: Memorize since & returns sections
This is chiefly to make code that looks up these sections easier to
read.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-ID: <
20240227113921.236097-2-armbru@redhat.com>
Peter Xu [Fri, 1 Mar 2024 09:15:24 +0000 (17:15 +0800)]
migration/multifd: Document two places for mapped-ram
Add two documentations for mapped-ram migration on two spots that may not
be extremely clear.
Reviewed-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240301091524.39900-1-peterx@redhat.com
Cc: Prasad Pandit <ppandit@redhat.com>
[peterx: fix two English errors per Prasad]
Signed-off-by: Peter Xu <peterx@redhat.com>
Helge Deller [Sat, 2 Mar 2024 21:53:32 +0000 (22:53 +0100)]
roms/hppa: Add build rules for hppa-firmware
Signed-off-by: Helge Deller <deller@gmx.de>
Suggested-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Helge Deller [Sat, 2 Mar 2024 21:28:04 +0000 (22:28 +0100)]
pc-bios/README: Add information about hppa-firmware
Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Helge Deller [Sat, 2 Mar 2024 21:27:01 +0000 (22:27 +0100)]
pc-bios/meson: Add hppa-firmware64.img blob
Add the missing 64-bit hppa firmware blob so that it gets installed.
Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 7c0dfcf9395e ("target/hppa: Update SeaBIOS-hppa to version 16")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Helge Deller [Sat, 2 Mar 2024 21:02:38 +0000 (22:02 +0100)]
target/hppa: Restore unwind_breg before calculating ior
When calculating the IOR for the exception handlers, the current
unwind_breg value is needed on 64-bit hppa machines.
Restore that value by calling cpu_restore_state() earlier, which in turn
calls hppa_restore_state_to_opc() which restores the unwind_breg for the
current instruction.
Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: 3824e0d643f3 ("target/hppa: Export function hppa_set_ior_and_isr()")
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Guenter Roeck [Sat, 17 Feb 2024 01:58:11 +0000 (17:58 -0800)]
target: hppa: Fix unaligned double word accesses for hppa64
Unaligned 64-bit accesses were found in Linux to clobber carry bits,
resulting in bad results if an arithmetic operation involving a
carry bit was executed after an unaligned 64-bit operation.
hppa 2.0 defines additional carry bits in PSW register bits 32..39.
When restoring PSW after executing an unaligned instruction trap, those
bits were not cleared and ended up to be active all the time. Since there
are no bits other than the upper carry bits needed in the upper 32 bit of
env->psw and since those are stored in env->psw_cb, just clear the entire
upper 32 bit when storing psw to solve the problem unconditionally.
Fixes: 931adff31478 ("target/hppa: Update cpu_hppa_get/put_psw for hppa64")
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Charlie Jenkins <charlie@rivosinc.com>
Cc: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Ilya Leoshkevich [Fri, 23 Feb 2024 11:31:40 +0000 (12:31 +0100)]
tests/tcg: Check that shmat() does not break /proc/self/maps
Add a regression test for a recently fixed issue, where shmat()
desynced the guest and the host view of the address space and caused
open("/proc/self/maps") to SEGV.
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Message-Id: <jwyuvao4apydvykmsnvacwshdgy3ixv7qvkh4dbxm3jkwgnttw@k4wpaayou7oq>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Thu, 22 Feb 2024 23:24:38 +0000 (13:24 -1000)]
linux-user: Rewrite target_shmat
Handle combined host and guest alignment requirements.
Handle host and guest page size differences.
Handle SHM_EXEC.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/115
Tested-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Richard Henderson [Fri, 23 Feb 2024 01:46:43 +0000 (15:46 -1000)]
linux-user: Add strace for shmat
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Peter Maydell [Fri, 1 Mar 2024 10:14:32 +0000 (10:14 +0000)]
Merge tag 'pull-request-2024-03-01' of https://gitlab.com/thuth/qemu into staging
* Fix some bugs in the vring setup of libqos
* Fix GIC settings when using --without-default-devices
* Fix USB PCAP streams on Windows
* Remove temporary files from test-util-sockets
* Fix TLS io channels sending too much data to the backend
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# -----END PGP SIGNATURE-----
# gpg: Signature made Fri 01 Mar 2024 08:04:39 GMT
# gpg: using RSA key
27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg: issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg: aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5
* tag 'pull-request-2024-03-01' of https://gitlab.com/thuth/qemu:
chardev/char-socket: Fix TLS io channels sending too much data to the backend
tests/unit/test-util-sockets: Remove temporary file after test
hw/usb/bus.c: PCAP adding 0xA in Windows version
hw/intc/Kconfig: Fix GIC settings when using "--without-default-devices"
libqos/virtio.c: fix 'avail_event' offset in qvring_init()
libqos/virtio.c: init all elems in qvring_indirect_desc_setup()
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 1 Mar 2024 10:14:25 +0000 (10:14 +0000)]
Merge tag 'pull-loongarch-
20240229' of https://gitlab.com/gaosong/qemu into staging
pull-loongarch-
20240229
V2: fix build error on mipsel
# -----BEGIN PGP SIGNATURE-----
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# -----END PGP SIGNATURE-----
# gpg: Signature made Thu 29 Feb 2024 11:34:24 GMT
# gpg: using RSA key
B8FF1DA0D2FDCB2DA09C6C2C40A2FFF239263EDF
# gpg: Good signature from "Song Gao <m17746591750@163.com>" [unknown]
# 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: B8FF 1DA0 D2FD CB2D A09C 6C2C 40A2 FFF2 3926 3EDF
* tag 'pull-loongarch-
20240229' of https://gitlab.com/gaosong/qemu:
loongarch: Change the UEFI loading mode to loongarch
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fabiano Rosas [Thu, 29 Feb 2024 15:30:17 +0000 (12:30 -0300)]
tests/qtest/migration: Add a multifd + mapped-ram migration test
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240229153017.2221-24-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
Fabiano Rosas [Thu, 29 Feb 2024 15:30:16 +0000 (12:30 -0300)]
migration/multifd: Add mapped-ram support to fd: URI
If we receive a file descriptor that points to a regular file, there's
nothing stopping us from doing multifd migration with mapped-ram to
that file.
Enable the fd: URI to work with multifd + mapped-ram.
Note that the fds passed into multifd are duplicated because we want
to avoid cross-thread effects when doing cleanup (i.e. close(fd)). The
original fd doesn't need to be duplicated because monitor_get_fd()
transfers ownership to the caller.
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/20240229153017.2221-23-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
Fabiano Rosas [Thu, 29 Feb 2024 15:30:15 +0000 (12:30 -0300)]
migration/multifd: Support incoming mapped-ram stream format
For the incoming mapped-ram migration we need to read the ramblock
headers, get the pages bitmap and send the host address of each
non-zero page to the multifd channel thread for writing.
Usage on HMP is:
(qemu) migrate_set_capability multifd on
(qemu) migrate_set_capability mapped-ram on
(qemu) migrate_incoming file:migfile
(the ram.h include needs to move because we've been previously relying
on it being included from migration.c. Now file.h will start including
multifd.h before migration.o is processed)
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240229153017.2221-22-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>
Fabiano Rosas [Thu, 29 Feb 2024 15:30:14 +0000 (12:30 -0300)]
migration/multifd: Support outgoing mapped-ram stream format
The new mapped-ram stream format uses a file transport and puts ram
pages in the migration file at their respective offsets and can be
done in parallel by using the pwritev system call which takes iovecs
and an offset.
Add support to enabling the new format along with multifd to make use
of the threading and page handling already in place.
This requires multifd to stop sending headers and leaving the stream
format to the mapped-ram code. When it comes time to write the data, we
need to call a version of qio_channel_write that can take an offset.
Usage on HMP is:
(qemu) stop
(qemu) migrate_set_capability multifd on
(qemu) migrate_set_capability mapped-ram on
(qemu) migrate_set_parameter max-bandwidth 0
(qemu) migrate_set_parameter multifd-channels 8
(qemu) migrate file:migfile
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Fabiano Rosas <farosas@suse.de>
Link: https://lore.kernel.org/r/20240229153017.2221-21-farosas@suse.de
Signed-off-by: Peter Xu <peterx@redhat.com>