Commit e0220bb5b2 made cpus.c target-agnostic but didn't notice
the cpu_list() function is only defined in target-specific code
in "cpu.h". Move list_cpus() declaration to "exec/cpu-common.h"
because this function is not softmmu-specific and can also be
used by user-mode, along with moving its implementation to cpu.c,
which is compiled per target.
Fixes: e0220bb5b2 ("softmmu: Build target-agnostic objects once")
Reported-by: Max Filippov <jcmvbkbc@gmail.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220314140108.26222-1-philippe.mathieu.daude@gmail.com>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
* Update Haiku VM to a usable level
* Some other miscellaneous small fixes
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Merge remote-tracking branch 'remotes/thuth-gitlab/tags/pull-request-2022-03-07' into staging
* Fixes for s390x TCG tests
* Update Haiku VM to a usable level
* Some other miscellaneous small fixes
# gpg: Signature made Mon 07 Mar 2022 18:07:00 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
* remotes/thuth-gitlab/tags/pull-request-2022-03-07:
Check and report for incomplete 'global' option format
tests/vm: Update haiku test vm to R1/Beta3
tests/avocado: Cancel BootLinux tests in case there is no free port
MAINTAINERS: Update the files in the FreeBSD section
tests/tcg/s390x: Cleanup of mie3 tests.
tests/tcg/s390x: Fix the exrl-trt* tests with Clang
tests/tcg/s390x: Fix mvc, mvo and pack tests with Clang
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* cleanups of qemu_oom_check() and qemu_memalign()
* target/arm/translate-neon: UNDEF if VLD1/VST1 stride bits are non-zero
* target/arm/translate-neon: Simplify align field check for VLD3
* GICv3 ITS: add more trace events
* GICv3 ITS: implement 8-byte accesses properly
* GICv3: fix minor issues with some trace/log messages
* ui/cocoa: Use the standard about panel
* target/arm: Provide cpu property for controling FEAT_LPA2
* hw/arm/virt: Disable LPA2 for -machine virt-6.2
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20220307' into staging
target-arm queue:
* cleanups of qemu_oom_check() and qemu_memalign()
* target/arm/translate-neon: UNDEF if VLD1/VST1 stride bits are non-zero
* target/arm/translate-neon: Simplify align field check for VLD3
* GICv3 ITS: add more trace events
* GICv3 ITS: implement 8-byte accesses properly
* GICv3: fix minor issues with some trace/log messages
* ui/cocoa: Use the standard about panel
* target/arm: Provide cpu property for controling FEAT_LPA2
* hw/arm/virt: Disable LPA2 for -machine virt-6.2
# gpg: Signature made Mon 07 Mar 2022 16:46:06 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]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83 15CF 3C25 25ED 1436 0CDE
* remotes/pmaydell/tags/pull-target-arm-20220307:
hw/arm/virt: Disable LPA2 for -machine virt-6.2
target/arm: Provide cpu property for controling FEAT_LPA2
ui/cocoa: Use the standard about panel
hw/intc/arm_gicv3_cpuif: Fix register names in ICV_HPPIR read trace event
hw/intc/arm_gicv3: Fix missing spaces in error log messages
hw/intc/arm_gicv3: Specify valid and impl in MemoryRegionOps
hw/intc/arm_gicv3_its: Add trace events for table reads and writes
hw/intc/arm_gicv3_its: Add trace events for commands
target/arm/translate-neon: Simplify align field check for VLD3
target/arm/translate-neon: UNDEF if VLD1/VST1 stride bits are non-zero
osdep: Move memalign-related functions to their own header
util: Put qemu_vfree() in memalign.c
util: Use meson checks for valloc() and memalign() presence
util: Share qemu_try_memalign() implementation between POSIX and Windows
meson.build: Don't misdetect posix_memalign() on Windows
util: Return valid allocation for qemu_try_memalign() with zero size
util: Unify implementations of qemu_memalign()
util: Make qemu_oom_check() a static function
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Move the various memalign-related functions out of osdep.h and into
their own header, which we include only where they are used.
While we're doing this, add some brief documentation comments.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20220226180723.1706285-10-peter.maydell@linaro.org
Various softmmu objects aren't target specific. Move them
to the generic softmmu source set.
For our 31 softmmu targets, this is in total 330 objects
less to build!
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-22-f4bug@amsat.org>
module_allow_arch() is the single target-specific call in the
whole vl.c file. Move the module initialization out to arch_init.c,
that way we'll be able to build vl.o once for all targets (the
next commit).
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-21-f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-16-f4bug@amsat.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-14-f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-13-f4bug@amsat.org>
Add cpus_are_resettable() to AccelOps, and implement it for the
KVM accelerator.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-12-f4bug@amsat.org>
Add cpu_thread_is_idle() to AccelOps, and implement it for the
KVM / WHPX accelerators.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-11-f4bug@amsat.org>
We want cpu_thread_is_idle() to use cpus_accel, so declare this
variable earlier.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-10-f4bug@amsat.org>
target_ulong is target-specific, while vaddr isn't.
Remove the unnecessary "exec/cpu-defs.h" target-speficic header
from "memory_mapping.h" and use the target-agnostic "hw/core/cpu.h"
locally in memory_mapping.c.
Remove "exec/memory.h" since MemoryRegion is forward-declared in
"qemu/typedefs.h".
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-6-f4bug@amsat.org>
cpu_memory_rw_debug() is declared in "exec/cpu-all.h" which
contains target-specific declarations. To be able to use it
from target agnostic source, move the declaration to the
generic "exec/cpu-common.h" header.
Replace the target-specific 'target_ulong' type by 'vaddr'
which better reflects the argument type, and is target agnostic.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-5-f4bug@amsat.org>
- qemu-storage-daemon: Add --daemonize
- Fix x-blockdev-amend and block node activation code which incorrectly
executed code in the iothread that must run in the main thread.
- Add macros for coroutine-safe TLS variables (required for correctness
with LTO)
- Fix crashes with concurrent I/O and bdrv_refresh_limits()
- Split block APIs in global state and I/O
- iotests: Don't refuse to run at all without GNU sed, just skip tests
that need it
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Merge remote-tracking branch 'remotes/kwolf-gitlab/tags/for-upstream' into staging
Block layer patches
- qemu-storage-daemon: Add --daemonize
- Fix x-blockdev-amend and block node activation code which incorrectly
executed code in the iothread that must run in the main thread.
- Add macros for coroutine-safe TLS variables (required for correctness
with LTO)
- Fix crashes with concurrent I/O and bdrv_refresh_limits()
- Split block APIs in global state and I/O
- iotests: Don't refuse to run at all without GNU sed, just skip tests
that need it
# gpg: Signature made Fri 04 Mar 2022 17:18:31 GMT
# gpg: using RSA key DC3DEB159A9AF95D3D7456FE7F09B272C88F2FD6
# gpg: issuer "kwolf@redhat.com"
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" [full]
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74 56FE 7F09 B272 C88F 2FD6
* remotes/kwolf-gitlab/tags/for-upstream: (50 commits)
block/amend: Keep strong reference to BDS
block/amend: Always call .bdrv_amend_clean()
tests/qemu-iotests: Rework the checks and spots using GNU sed
iotests/graph-changes-while-io: New test
iotests: Allow using QMP with the QSD
block: Make bdrv_refresh_limits() non-recursive
job.h: assertions in the callers of JobDriver function pointers
job.h: split function pointers in JobDriver
block-backend-common.h: split function pointers in BlockDevOps
block_int-common.h: assertions in the callers of BdrvChildClass function pointers
block_int-common.h: split function pointers in BdrvChildClass
block_int-common.h: assertions in the callers of BlockDriver function pointers
block_int-common.h: split function pointers in BlockDriver
block/coroutines: I/O and "I/O or GS" API
block/copy-before-write.h: global state API + assertions
include/block/snapshot: global state API + assertions
assertions for blockdev.h global state API
include/sysemu/blockdev.h: global state API
assertions for blockjob.h global state API
include/block/blockjob.h: global state API
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
All the global state (GS) API functions will check that
qemu_in_main_thread() returns true. If not, it means
that the safety of BQL cannot be guaranteed, and
they need to be moved to I/O.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-9-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
When invoked from the main loop, this function is the same
as qemu_mutex_iothread_locked, and returns true if the BQL is held.
When invoked from iothreads or tests, it returns true only
if the current AioContext is the Main Loop.
This essentially just extends qemu_mutex_iothread_locked to work
also in unit tests or other users like storage-daemon, that run
in the Main Loop but end up using the implementation in
stubs/iothread-lock.c.
Using qemu_mutex_iothread_locked in unit tests defaults to false
because they use the implementation in stubs/iothread-lock,
making all assertions added in next patches fail despite the
AioContext is still the main loop.
See the comment in the function header for more information.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20220303151616.325444-2-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
qemu_mutex_iothread_locked() may be used from coroutines. Standard
__thread variables cannot be used by coroutines. Use the coroutine TLS
macros instead.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20220222140150.27240-5-stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
- Improves documentation of SSH fingerprint checking
- Fixes SHA256 fingerprints with non-blockdev usage
- Blocks the clone3, setns, unshare & execveat syscalls
with seccomp
- Blocks process spawning via clone syscall, but allows
threads, with seccomp
- Takes over seccomp maintainer role
- Expands firmware descriptor spec to allow flash
without NVRAM
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Merge remote-tracking branch 'remotes/berrange-gitlab/tags/misc-next-pull-request' into staging
This misc series of changes:
- Improves documentation of SSH fingerprint checking
- Fixes SHA256 fingerprints with non-blockdev usage
- Blocks the clone3, setns, unshare & execveat syscalls
with seccomp
- Blocks process spawning via clone syscall, but allows
threads, with seccomp
- Takes over seccomp maintainer role
- Expands firmware descriptor spec to allow flash
without NVRAM
# gpg: Signature made Thu 17 Feb 2022 11:57:13 GMT
# gpg: using RSA key DAF3A6FDB26B62912D0E8E3FBE86EBB415104FDF
# gpg: Good signature from "Daniel P. Berrange <dan@berrange.com>" [full]
# gpg: aka "Daniel P. Berrange <berrange@redhat.com>" [full]
# Primary key fingerprint: DAF3 A6FD B26B 6291 2D0E 8E3F BE86 EBB4 1510 4FDF
* remotes/berrange-gitlab/tags/misc-next-pull-request:
docs: expand firmware descriptor to allow flash without NVRAM
MAINTAINERS: take over seccomp from Eduardo Otubo
seccomp: block setns, unshare and execveat syscalls
seccomp: block use of clone3 syscall
seccomp: fix blocking of process spawning
seccomp: add unit test for seccomp filtering
seccomp: allow action to be customized per syscall
block: print the server key type and fingerprint on failure
block: support sha256 fingerprint with pre-blockdev options
block: better document SSH host key fingerprint checking
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* Some small fixes for the qtests
* Misc header cleanups by Philippe
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Merge remote-tracking branch 'remotes/thuth-gitlab/tags/pull-request-2022-02-21' into staging
* Improve virtio-net failover test
* Some small fixes for the qtests
* Misc header cleanups by Philippe
# gpg: Signature made Mon 21 Feb 2022 11:40:37 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
* remotes/thuth-gitlab/tags/pull-request-2022-02-21: (25 commits)
hw/tricore: Remove unused and incorrect header
hw/m68k/mcf: Add missing 'exec/hwaddr.h' header
exec/exec-all: Move 'qemu/log.h' include in units requiring it
softmmu/runstate: Clean headers
linux-user: Add missing "qemu/timer.h" include
target: Add missing "qemu/timer.h" include
core/ptimers: Remove unnecessary 'sysemu/cpus.h' include
exec/ramblock: Add missing includes
qtest: Add missing 'hw/qdev-core.h' include
hw/acpi/memory_hotplug: Remove unused 'hw/acpi/pc-hotplug.h' header
hw/remote: Add missing include
hw/tpm: Clean includes
scripts: Remove the old switch-timer-api script
tests/qtest: failover: migration abort test with failover off
tests/qtest: failover: test migration if the guest doesn't support failover
tests/qtest: failover: check migration with failover off
tests/qtest: failover: check missing guest feature
tests/qtest: failover: check the feature is correctly provided
tests/qtest: failover: use a macro for check_one_card()
tests/qtest: failover: clean up pathname of tests
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The "hardware version" machinery (qemu_set_hw_version(),
qemu_hw_version(), and the QEMU_HW_VERSION define) is used by fewer
than 10 files. Move it out from osdep.h into a new
qemu/hw-version.h.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220208200856.3558249-6-peter.maydell@linaro.org
The function qemu_madvise() and the QEMU_MADV_* constants associated
with it are used in only 10 files. Move them out of osdep.h to a new
qemu/madvise.h header that is included where it is needed.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220208200856.3558249-2-peter.maydell@linaro.org
Many files use "qemu/log.h" declarations but neglect to include
it (they inherit it via "exec/exec-all.h"). "exec/exec-all.h" is
a core component and shouldn't be used that way. Move the
"qemu/log.h" inclusion locally to each unit requiring it.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20220207082756.82600-10-f4bug@amsat.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Add the missing 'qemu/log.h' header and remove the
unused 'exec/exec-all.h' one.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-14-f4bug@amsat.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Add "hw/qdev-core.h" to avoid when refactoring include/:
softmmu/qtest.c:404:9: error: use of undeclared identifier 'NamedGPIOList'
NamedGPIOList *ngl;
^
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220207082756.82600-5-f4bug@amsat.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
setns/unshare are used to change namespaces which is not something QEMU
needs to be able todo.
execveat is a new variant of execve so should be blocked just like
execve already is.
Acked-by: Eduardo Otubo <otubo@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Modern glibc will use clone3 instead of clone, when it detects that it
is available. We need to compare flags in order to decide whether to
allow clone (thread create vs process fork), but in clone3 the flags
are hidden inside a struct. Seccomp can't currently match on data inside
a struct, so our only option is to block clone3 entirely. If we use
ENOSYS to block it, then glibc transparently falls back to clone.
This may need to be revisited if Linux adds a new architecture in
future and only provides clone3, without clone.
Acked-by: Eduardo Otubo <otubo@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
When '-sandbox on,spawn=deny' is given, we are supposed to block the
ability to spawn processes. We naively blocked the 'fork' syscall,
forgetting that any modern libc will use the 'clone' syscall instead.
We can't simply block the 'clone' syscall though, as that will break
thread creation. We thus list the set of flags used to create threads
and block anything that doesn't match this exactly.
Acked-by: Eduardo Otubo <otubo@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
We're currently tailoring whether to use kill process or return EPERM
based on the syscall set. This is not flexible enough for future
requirements where we also need to be able to return a variety of
actions on a per-syscall granularity.
Acked-by: Eduardo Otubo <otubo@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
QEMU can now easily crash with two continuous migration carried out:
(qemu) migrate -d exec:cat>out
(qemu) migrate_cancel
(qemu) migrate -d exec:cat>out
[crash] ../softmmu/memory.c:2782: memory_global_dirty_log_start: Assertion
`!(global_dirty_tracking & flags)' failed.
It's because memory API provides a way to postpone dirty log stop if the VM is
stopped, and that'll be re-done until the next VM start. It was added in 2017
with commit 1931076077 ("migration: optimize the downtime", 2017-08-01).
However the recent work on allowing dirty tracking to be bitmask broke it,
which is commit 63b41db4bc ("memory: make global_dirty_tracking a bitmask",
2021-11-01).
The fix proposed in this patch contains two things:
(1) Instead of passing over the flags to postpone stop dirty track, we add a
global variable (along with current vmstate_change variable) to record
what flags to stop dirty tracking.
(2) When start dirty tracking, instead if remove the vmstate hook directly,
we also execute the postponed stop process so that we make sure all the
starts and stops will be paired.
This procedure is overlooked in the bitmask-ify work in 2021.
Cc: Hyman Huang <huangy81@chinatelecom.cn>
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2044818
Fixes: 63b41db4bc ("memory: make global_dirty_tracking a bitmask")
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220207123019.27223-1-peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Instead of taking the lock of the cpu work list in order to check if it's
empty, we can just read the head pointer atomically. This decreases
cpu_work_list_empty's share from 5% to 1.3% in a profile of icount-enabled
aarch64-softmmu.
Signed-off-by: Idan Horowitz <idan.horowitz@gmail.com>
Message-Id: <20220114004358.299534-1-idan.horowitz@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
softmmu/rtc.c defines two public functions: qemu_get_timedate() and
qemu_timedate_diff(). Currently we keep the prototypes for these in
qemu-common.h, but most files don't need them. Move them to their
own header, a new include/sysemu/rtc.h.
Since the C files using these two functions did not need to include
qemu-common.h for any other reason, we can remove those include lines
when we add the include of the new rtc.h.
The license for the .h file follows that of the softmmu/rtc.c
where both the functions are defined.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
The pointer assignment "const char *p = path;" in function
qemu_fdt_add_path is unnecessary. Let's remove it and just
use the "path" passed in. No functional change.
Suggested-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-id: 20220111032758.27804-1-wangyanan55@huawei.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
If I configure my build with --enable-sanitizers, my GCC (v8.5.0)
complains:
.../softmmu/device_tree.c: In function ‘qemu_fdt_add_path’:
.../softmmu/device_tree.c:560:18: error: ‘retval’ may be used uninitialized
in this function [-Werror=maybe-uninitialized]
int namelen, retval;
^~~~~~
It's a false warning since the while loop is always executed at least
once (p has to be non-NULL, otherwise the derefence in the if-statement
earlier will crash). Thus let's switch to a do-while loop here instead
to make the compiler happy in all cases.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Message-id: 20220107133844.145039-1-thuth@redhat.com
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
dma_memory_set() does a DMA barrier, set the address space with
a constant value. The constant value filling code is not specific
to DMA and can be used for AddressSpace. Extract it as a new
helper: address_space_set().
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
[lv: rebase]
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220115203725.3834712-2-laurent@vivier.eu>
Since commit 292e13142d, dma_buf_rw() returns a MemTxResult type.
Do not discard it, return it to the caller. Pass the previously
returned value (the QEMUSGList residual size, which was rarely used)
as an optional argument.
With this new API, SCSIRequest::residual might now be accessed via
a pointer. Since the size_t type does not have the same size on
32 and 64-bit host architectures, convert it to a uint64_t, which
is big enough to hold the residual size, and the type is constant
on both 32/64-bit hosts.
Update the few dma_buf_read() / dma_buf_write() callers to the new
API.
Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220117125130.131828-1-f4bug@amsat.org>
Update the obvious places where dma_addr_t should be used
(instead of uint64_t, hwaddr, size_t, int32_t types).
This allows to have &dma_addr_t type portable on 32/64-bit
hosts.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220111184309.28637-11-f4bug@amsat.org>
The 'resid' field is slightly confusing and could be
interpreted as some ID. Rename it as 'residual' which
is clearer to review. No logical change.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20220111184309.28637-8-f4bug@amsat.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
fdt_open_into() obligingly returns an error code in case the operation
failed. So be obliging as well and use it in the error message.
Signed-off-by: Bernhard Beschow <shentey@gmail.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220116114649.40859-1-shentey@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
We should only call the log_global_start/stop when the global dirty track
bitmask changes from zero<->non-zero.
No real issue reported for this yet probably because no immediate user to
enable both dirty rate measurement and migration at the same time. However
it'll be good to be prepared for it.
Fixes: 63b41db4bc ("memory: make global_dirty_tracking a bitmask")
Cc: qemu-stable@nongnu.org
Cc: Hyman Huang <huangy81@chinatelecom.cn>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Juan Quintela <quintela@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20211130080028.6474-1-peterx@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
memory_region_is_mapped() currently does not return "true" when a memory
region is mapped via an alias.
Assuming we have:
alias (A0) -> alias (A1) -> region (R0)
Mapping A0 would currently only make memory_region_is_mapped() succeed
on A0, but not on A1 and R0.
Let's fix that by adding a "mapped_via_alias" counter to memory regions and
updating it accordingly when an alias gets (un)mapped.
I am not aware of actual issues, this is rather a cleanup to make it
consistent.
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20211102164317.45658-3-david@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
While mtree_info() handles both ASes and flatviews cases,
the two cases share basically no code. Split mtree_info()
as mtree_info_flatview() + mtree_info_as() to simplify.
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210904231101.1071929-2-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Since commit 2cdfcf272d ("memory: assign MemoryRegionOps to all
regions"), all newly created regions are assigned with
unassigned_mem_ops (which might be then overwritten).
When using aliased container regions, and there is no region mapped
at address 0 in the container, the memory_region_dispatch_read()
and memory_region_dispatch_write() calls incorrectly return the
container unassigned_mem_ops, because the alias offset is not used.
Consider the following setup:
+--------------------+ < - - - - - - - - - - - +
| Container | mr
| (unassigned_mem) | |
| |
| | |
| | alias_offset
+ + <- - - - - - +----------+---------+
| +----------------+ | | |
| | MemoryRegion0 | | | |
| +----------------+ | | Alias | addr1
| | MemoryRegion1 | | <~ ~ ~ ~ ~ | | <~~~~~~
| +----------------+ | | |
| | +--------------------+
| |
| |
| |
| |
| +----------------+ |
| | MemoryRegionX | |
| +----------------+ |
| | MemoryRegionY | |
| +----------------+ |
| | MemoryRegionZ | |
| +----------------+ |
+--------------------+
The memory_region_init_alias() flow is:
memory_region_init_alias()
-> memory_region_init()
-> object_initialize(TYPE_MEMORY_REGION)
-> memory_region_initfn()
-> mr->ops = &unassigned_mem_ops;
Later when accessing offset=addr1 via the alias, we expect to hit
MemoryRegion1. The memory_region_dispatch_read() flow is:
memory_region_dispatch_read(addr1)
-> memory_region_access_valid(mr) <- addr1 offset is ignored
-> mr->ops->valid.accepts()
-> unassigned_mem_accepts()
<- false
<- false
<- MEMTX_DECODE_ERROR
The caller gets a MEMTX_DECODE_ERROR while the access is OK.
Fix by dispatching aliases recursively, accessing its origin region
after adding the alias offset.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Message-Id: <20210418055708.820980-1-f4bug@amsat.org>
The -device JSON syntax impl leaks a reference on the created
DeviceState instance. As a result when you hot-unplug the
device, the device_finalize method won't be called and thus
it will fail to emit the required DEVICE_DELETED event.
A 'json-cli' feature was previously added against the
'device_add' QMP command QAPI schema to indicated to mgmt
apps that -device supported JSON syntax. Given the hotplug
bug that feature flag is not usable for its purpose, so
we add a new 'json-cli-hotplug' feature to indicate the
-device supports JSON without breaking hotplug.
Fixes: 5dacda5167
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/802
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220105123847.4047954-2-berrange@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Tested-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
