1010 Commits

Author SHA1 Message Date
Romain Malmain
5682a6d841 v10.0.0 release
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Merge tag 'v10.0.0' into update_qemu_v10_0_0

v10.0.0 release
2025-04-29 13:00:44 +02:00
Romain Malmain
2a676d9cd8 v9.2.2 release
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Merge tag 'v9.2.2' into update_qemu_v9_2_2

v9.2.2 release
2025-03-18 15:32:47 +01:00
Paolo Bonzini
f35432a4f6 Revert "meson.build: default to -gsplit-dwarf for debug info"
This reverts commit 563b1a35ed1f1151505d4fe5f723827d1b3fd4bc.

Split debug info support is broken when cross compiling
(https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99973).  People
that would like to use it can add it via --extra-cflags.

Reported-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-03-17 14:22:07 +01:00
Peter Maydell
a019e15edf meson.build: Set RUST_BACKTRACE for all tests
We want to capture potential Rust backtraces on panics in our test
logs, which isn't Rust's default behaviour.  Set RUST_BACKTRACE=1 in
the add_test_setup environments, so that all our tests get run with
this environment variable set.

This makes the setting of that variable in the gitlab CI template
redundant, so we can remove it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-id: 20250310102950.3752908-1-peter.maydell@linaro.org
2025-03-14 12:54:33 +00:00
Kevin Wolf
984a32f17e file-posix: Support FUA writes
Until now, FUA was always emulated with a separate flush after the write
for file-posix. The overhead of processing a second request can reduce
performance significantly for a guest disk that has disabled the write
cache, especially if the host disk is already write through, too, and
the flush isn't actually doing anything.

Advertise support for REQ_FUA in write requests and implement it for
Linux AIO and io_uring using the RWF_DSYNC flag for write requests. The
thread pool still performs a separate fdatasync() call. This can be
improved later by using the pwritev2() syscall if available.

As an example, this is how fio numbers can be improved in some scenarios
with this patch (all using virtio-blk with cache=directsync on an nvme
block device for the VM, fio with ioengine=libaio,direct=1,sync=1):

                              | old           | with FUA support
------------------------------+---------------+-------------------
bs=4k, iodepth=1, numjobs=1   |  45.6k iops   |  56.1k iops
bs=4k, iodepth=1, numjobs=16  | 183.3k iops   | 236.0k iops
bs=4k, iodepth=16, numjobs=1  | 258.4k iops   | 311.1k iops

However, not all scenarios are clear wins. On another slower disk I saw
little to no improvment. In fact, in two corner case scenarios, I even
observed a regression, which I however consider acceptable:

1. On slow host disks in a write through cache mode, when the guest is
   using virtio-blk in a separate iothread so that polling can be
   enabled, and each completion is quickly followed up with a new
   request (so that polling gets it), it can happen that enabling FUA
   makes things slower - the additional very fast no-op flush we used to
   have gave the adaptive polling algorithm a success so that it kept
   polling. Without it, we only have the slow write request, which
   disables polling. This is a problem in the polling algorithm that
   will be fixed later in this series.

2. With a high queue depth, it can be beneficial to have flush requests
   for another reason: The optimisation in bdrv_co_flush() that flushes
   only once per write generation acts as a synchronisation mechanism
   that lets all requests complete at the same time. This can result in
   better batching and if the disk is very fast (I only saw this with a
   null_blk backend), this can make up for the overhead of the flush and
   improve throughput. In theory, we could optionally introduce a
   similar artificial latency in the normal completion path to achieve
   the same kind of completion batching. This is not implemented in this
   series.

Compatibility is not a concern for the kernel side of io_uring, it has
supported RWF_DSYNC from the start. However, io_uring_prep_writev2() is
not available before liburing 2.2.

Linux AIO started supporting it in Linux 4.13 and libaio 0.3.111. The
kernel is not a problem for any supported build platform, so it's not
necessary to add runtime checks. However, openSUSE is still stuck with
an older libaio version that would break the build.

We must detect the presence of the writev2 functions in the user space
libraries at build time to avoid build failures.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-ID: <20250307221634.71951-2-kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-03-13 17:44:55 +01:00
Pierrick Bouvier
892b06c40e plugins: add explicit dependency in functional tests
./tests/functional/test_aarch64_tcg_plugins.py needs to have plugin
libinsn built. However, it's not listed as a dependency, so meson can't
know it needs to be built.

Thus, we keep track of all plugins, and add them as an explicit
dependency.

Fixes: 4c134d07b9e ("tests: add a new set of tests to exercise plugins")
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250304222439.2035603-9-alex.bennee@linaro.org>
2025-03-10 10:30:00 +00:00
Alex Bennée
563b1a35ed meson.build: default to -gsplit-dwarf for debug info
This option is supported by both gcc (since 4.7) and clang (since
7.0). Not only does this make the linkers job easier by reducing the
amount of ELF it needs to parse it also reduces the total build size
quite considerably. In my case a default build went from 5.8G to
3.9G (vs 1.9G for --disable-debug-info).

The --disable-split-debug option allows distros to keep all the info
together for ease of packaging.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Link: https://lore.kernel.org/r/20250306161631.2477685-1-alex.bennee@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-03-07 16:38:41 +01:00
Paolo Bonzini
a32b239699 rust: timer: wrap QEMUTimer with Opaque<> and express pinning requirements
Timers must be pinned in memory, because modify() stores a pointer to them
in the TimerList.  To express this requirement, change init_full() to take
a pinned reference.  Because the only way to obtain a Timer is through
Timer::new(), which is unsafe, modify() can assume that the timer it got
was later initialized; and because the initialization takes a Pin<&mut
Timer> modify() can assume that the timer is pinned.  In the future the
pinning requirement will be expressed through the pin_init crate instead.

Note that Timer is a bit different from other users of Opaque, in that
it is created in Rust code rather than C code.  This is why it has to
use the unsafe constructors provided by Opaque; and in fact Timer::new()
is also unsafe, because it leaves it to the caller to invoke init_full()
before modify().  Without a call to init_full(), modify() will cause a
NULL pointer dereference.

An alternative could be to combine new() + init_full() by returning a
pinned box; however, using a reference makes it easier to express
the requirement that the opaque outlives the timer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-03-06 12:44:46 +01:00
Paolo Bonzini
41494da7df chardev: express dependency on io/
chardev is using qio functions, so express that in the Meson internal
dependency.  (I found this when adding character devices bindings for
Rust; they initially needed the io dependency added by hand).

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-03-06 12:44:46 +01:00
Stefan Hajnoczi
f5e6e13124 Misc HW patches
- Remove TCG dependency on ARM_GICV3 (Philippe)
 - Add MMIO interface to PVPanic device (Alexander)
 - Add vmapple machine (Alexander & Phil)
 - Restrict part of sPAPR PAGE_INIT hypercall to TCG (Philippe)
 - Make ghes_record_cper_errors() scope static (Gavin)
 - Do not expose the ARM virt machines on Xen-only binary (Philippe)
 - Xen header cleanups (Philippe)
 - Set Freescale eTSEC network device description & category (Zoltan)
 - Improve RX FIFO depth for various UARTs (Philippe)
 - Prevent TX FIFO memory leak in SiFive UART (Alistair)
 - Cleanups in MacIO and AT24C EEPROM (Zoltan)
 - Add UFS temperature event notification support & test (Keoseong)
 - Remove printf() calls in hw/arm/ (Peter)
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Merge tag 'hw-misc-20250305' of https://github.com/philmd/qemu into staging

Misc HW patches

- Remove TCG dependency on ARM_GICV3 (Philippe)
- Add MMIO interface to PVPanic device (Alexander)
- Add vmapple machine (Alexander & Phil)
- Restrict part of sPAPR PAGE_INIT hypercall to TCG (Philippe)
- Make ghes_record_cper_errors() scope static (Gavin)
- Do not expose the ARM virt machines on Xen-only binary (Philippe)
- Xen header cleanups (Philippe)
- Set Freescale eTSEC network device description & category (Zoltan)
- Improve RX FIFO depth for various UARTs (Philippe)
- Prevent TX FIFO memory leak in SiFive UART (Alistair)
- Cleanups in MacIO and AT24C EEPROM (Zoltan)
- Add UFS temperature event notification support & test (Keoseong)
- Remove printf() calls in hw/arm/ (Peter)

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* tag 'hw-misc-20250305' of https://github.com/philmd/qemu: (41 commits)
  hw/nvram/eeprom_at24c: Reorganise init to avoid overwriting values
  hw/nvram/eeprom_at24c: Remove memset after g_malloc0
  hw/nvram/eeprom_at24c: Remove ERR macro that calls fprintf to stderr
  hw/nvram/eeprom_at24c: Use OBJECT_DECLARE_SIMPLE_TYPE
  hw/arm/versatilepb: Convert printfs to LOG_GUEST_ERROR
  hw/arm/omap_sx1: Remove ifdeffed out debug printf
  hw/arm/omap1: Convert information printfs to tracepoints
  hw/arm/omap1: Drop ALMDEBUG ifdeffed out code
  hw/arm/omap1: Convert raw printfs to qemu_log_mask()
  tests/qtest/ufs-test: Add test code for the temperature feature
  hw/ufs: Add temperature event notification support
  hw/misc/macio/gpio: Add constants for register bits
  hw/misc/macio: Improve trace logs
  hw/char/sifive_uart: Free fifo on unrealize
  hw/char/sh_serial: Return correct number of empty RX FIFO elements
  hw/char/mcf_uart: Really use RX FIFO depth
  hw/char/mcf_uart: Use FIFO_DEPTH definition instead of magic values
  hw/char/imx_serial: Really use RX FIFO depth
  hw/char/bcm2835_aux: Really use RX FIFO depth
  hw/char/pl011: Really use RX FIFO depth
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-03-05 21:54:58 +08:00
Alexander Graf
11fa056e79 hw: Add vmapple subdir
We will introduce a number of devices that are specific to the vmapple
target machine. To keep them all tidily together, let's put them into
a single target directory.

Signed-off-by: Alexander Graf <graf@amazon.com>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-ID: <20241223221645.29911-7-phil@philjordan.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-03-04 14:45:34 +01:00
Gerd Hoffmann
736ca80cdd hw/uefi: add to meson
Wire up uefi-vars in the build system.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-ID: <20250225163031.1409078-18-kraxel@redhat.com>
2025-03-04 12:07:05 +01:00
Paolo Bonzini
d50ea7f0e6 pvg: add option to configure it out
... and also to require it (--enable-pvg).  While at it, unify the dependency()
call for pvg and metal, which simplifies the logic a bit.

Note that all other Apple frameworks are either required or always-present,
therefore do not add them to the summary in the same way as PVG.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-02-25 16:18:12 +01:00
Paolo Bonzini
ae3a420fea pvg: do not enable it on cross-architecture targets
PVG is not cross-architecture; the PVG guest drivers with x86-64 macOS do not give
useful results with the aarch64 macOS host PVG framework, and vice versa.
To express this repurpose CONFIG_MAC_PVG, making it true only if the target has
the same architecture as the host.  Furthermore, remove apple-gfx.m unless
one of the devices is actually present.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-02-25 16:18:11 +01:00
Stefan Hajnoczi
7389992c84 Memory pull request for 10.0
v2 changelog:
 
 - Fix Mac (and possibly some other) build issues for two patches
   - os: add an ability to lock memory on_fault
   - memory: pass MemTxAttrs to memory_access_is_direct()
 
 List of features:
 
 - William's fix on ram hole punching when with file offset
 - Daniil's patchset to introduce mem-lock=on-fault
 - William's hugetlb hwpoison fix for size report & remap
 - David's series to allow qemu debug writes to MMIOs
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Merge tag 'mem-next-pull-request' of https://gitlab.com/peterx/qemu into staging

Memory pull request for 10.0

v2 changelog:

- Fix Mac (and possibly some other) build issues for two patches
  - os: add an ability to lock memory on_fault
  - memory: pass MemTxAttrs to memory_access_is_direct()

List of features:

- William's fix on ram hole punching when with file offset
- Daniil's patchset to introduce mem-lock=on-fault
- William's hugetlb hwpoison fix for size report & remap
- David's series to allow qemu debug writes to MMIOs

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# gpg: Signature made Thu 13 Feb 2025 01:37:04 HKT
# gpg:                using EDDSA key B9184DC20CC457DACF7DD1A93B5FCCCDF3ABD706
# gpg:                issuer "peterx@redhat.com"
# gpg: Good signature from "Peter Xu <xzpeter@gmail.com>" [full]
# gpg:                 aka "Peter Xu <peterx@redhat.com>" [full]
# Primary key fingerprint: B918 4DC2 0CC4 57DA CF7D  D1A9 3B5F CCCD F3AB D706

* tag 'mem-next-pull-request' of https://gitlab.com/peterx/qemu:
  overcommit: introduce mem-lock=on-fault
  system: introduce a new MlockState enum
  system/vl: extract overcommit option parsing into a helper
  os: add an ability to lock memory on_fault
  system/physmem: poisoned memory discard on reboot
  system/physmem: handle hugetlb correctly in qemu_ram_remap()
  physmem: teach cpu_memory_rw_debug() to write to more memory regions
  hmp: use cpu_get_phys_page_debug() in hmp_gva2gpa()
  memory: pass MemTxAttrs to memory_access_is_direct()
  physmem: disallow direct access to RAM DEVICE in address_space_write_rom()
  physmem: factor out direct access check into memory_region_supports_direct_access()
  physmem: factor out RAM/ROMD check in memory_access_is_direct()
  physmem: factor out memory_region_is_ram_device() check in memory_access_is_direct()
  system/physmem: take into account fd_offset for file fallocate

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-02-19 08:36:26 +08:00
Zhao Liu
eadb83f9a3 rust: add bindings for timer
Add timer bindings to help handle idiomatic Rust callbacks.

Additionally, wrap QEMUClockType in ClockType binding to avoid unsafe
calls in device code.

Signed-off-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250210030051.2562726-7-zhao1.liu@intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-02-13 12:51:34 +01:00
Paolo Bonzini
5472a38cb9 rust: qdev: switch from legacy reset to Resettable
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-02-13 12:19:34 +01:00
Daniil Tatianin
e76fadf93e os: add an ability to lock memory on_fault
This will be used in the following commits to make it possible to only
lock memory on fault instead of right away.

Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
Link: https://lore.kernel.org/r/20250212143920.1269754-2-d-tatianin@yandex-team.ru
[peterx: fail os_mlock(on_fault=1) when not supported]
[peterx: use G_GNUC_UNUSED instead of "(void)on_fault", per Dan]
Signed-off-by: Peter Xu <peterx@redhat.com>
2025-02-12 11:36:01 -05:00
Stefan Hajnoczi
54e91d1523 QAPI patches patches for 2025-02-10
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Merge tag 'pull-qapi-2025-02-10-v2' of https://repo.or.cz/qemu/armbru into staging

QAPI patches patches for 2025-02-10

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* tag 'pull-qapi-2025-02-10-v2' of https://repo.or.cz/qemu/armbru:
  qapi: expose all schema features to code
  qapi: rename 'special_features' to 'features'
  qapi: change 'unsigned special_features' to 'uint64_t features'
  qapi: cope with feature names containing a '-'
  qapi/ui: Fix documentation of upper bound value in InputMoveEvent
  qapi: fix colon in Since tag section
  qapi: Move and rename qapi/qmp/dispatch.h to qapi/qmp-registry.h
  qapi: Move include/qapi/qmp/ to include/qobject/

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-02-10 10:47:31 -05:00
Daniel P. Berrangé
2ebb09f34f qapi: expose all schema features to code
This replaces use of the constants from the QapiSpecialFeatures
enum, with constants from the auto-generate QapiFeatures enum
in qapi-features.h

The 'deprecated' and 'unstable' features still have a little bit of
special handling, being force defined to be the 1st + 2nd features
in the enum, regardless of whether they're used in the schema. This
retains compatibility with common code that references the features
via the QapiSpecialFeatures constants.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-ID: <20250205123550.2754387-5-berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Imports tidied up with isort]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2025-02-10 15:45:04 +01:00
Richard Henderson
6d701c9bac meson: Deprecate 32-bit host support
We deprecated i686 system mode support for qemu 8.0.  However, to
make real cleanups to TCG we need to deprecate all 32-bit hosts.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-02-08 12:41:40 -08:00
Richard Henderson
acce728cbc meson: Disallow 64-bit on 32-bit emulation
For system mode, we can rarely support the amount of RAM that
the guest requires. TCG emulation is restricted to round-robin
mode, which solves many of the atomicity issues, but not those
associated with virtio.  In any case, round-robin does nothing
to help the speed of emulation.

For user mode, most emulation does not succeed at all.  Most
of the time we cannot even load 64-bit non-PIE binaries due
to lack of a 64-bit address space.  Threads are run in
parallel, not round-robin, which means that atomicity
is not handled.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-02-08 12:41:33 -08:00
Richard Henderson
83ef486aeb meson: Disallow 64-bit on 32-bit HVF/NVMM/WHPX emulation
Require a 64-bit host binary to spawn a 64-bit guest.

For HVF this is trivially true because macOS 11 dropped
support for 32-bit applications entirely.

For NVMM, NetBSD only enables nvmm on x86_64:
  http://cvsweb.netbsd.org/bsdweb.cgi/src/sys/dev/nvmm/Makefile?rev=1.1.6.2;content-type=text%2Fplain

For WHPX, we have already dropped support for 32-bit Windows.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-02-08 12:41:22 -08:00
Richard Henderson
807a85dfc8 meson: Disallow 64-bit on 32-bit Xen emulation
Require a 64-bit host binary to spawn a 64-bit guest.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-02-08 12:40:24 -08:00
Richard Henderson
33614fa310 meson: Disallow 64-bit on 32-bit KVM emulation
Require a 64-bit host binary to spawn a 64-bit guest.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-02-08 12:40:24 -08:00
Richard Henderson
a802d5c456 meson: Drop tcg as a module
This reverts commit dae0ec159f9 ("accel: build tcg modular").
The attempt was only enabled for x86, only modularized a small
portion of tcg, and in more than 3 years there have been no
follow-ups to improve the situation.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-02-08 12:40:24 -08:00
Paolo Bonzini
237831f9ad rust: add --rust-target option for bindgen
Without it, recent bindgen will give an error

   error: extern block cannot be declared unsafe

if rustc is not new enough to support the "unsafe extern" construct.

Cc: qemu-rust@nongnu.org
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250206111514.2134895-1-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
(cherry picked from commit 131c58469f6fb68c89b38fee6aba8bbb20c7f4bf)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2025-02-08 16:14:52 +03:00
Paolo Bonzini
131c58469f rust: add --rust-target option for bindgen
Without it, recent bindgen will give an error

   error: extern block cannot be declared unsafe

if rustc is not new enough to support the "unsafe extern" construct.

Cc: qemu-rust@nongnu.org
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-ID: <20250206111514.2134895-1-pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-02-06 13:51:46 -05:00
Steve Sistare
57ad6ab804 backends/hostmem-shm: factor out allocation of "anonymous shared memory with an fd"
Let's factor it out so we can reuse it.

Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Link: https://lore.kernel.org/r/1736967650-129648-2-git-send-email-steven.sistare@oracle.com
Signed-off-by: Fabiano Rosas <farosas@suse.de>
2025-01-29 11:43:03 -03:00
Pierrick Bouvier
923710b6d5 plugins: enable linking with clang/lld
Windows uses a special mechanism to enable plugins to work (DLL delay
loading). Option for lld is different than ld.

MSYS2 clang based environment use lld by default, so restricting to this
config on Windows is safe, and will avoid false bug reports.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Tested-by: Stefan Weil <sw@weilnetz.de>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20250110203401.178532-4-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250116160306.1709518-26-alex.bennee@linaro.org>
2025-01-17 10:45:32 +00:00
Pierrick Bouvier
8f5a4cfc7e win32: remove usage of attribute gcc_struct
This attribute is not recognized by clang.

An investigation has been performed to ensure this attribute has no
effect on layout of structures we use in QEMU [1], so it's safe to
remove now.

In the future, we'll forbid introducing new bitfields in packed struct,
as they are the one potentially impacted by this change.

[1] https://lore.kernel.org/qemu-devel/66c346de-7e20-4831-b3eb-1cda83240af9@linaro.org/

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Stefan Weil <sw@weilnetz.de>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-Id: <20250110203401.178532-2-pierrick.bouvier@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20250116160306.1709518-24-alex.bennee@linaro.org>
2025-01-17 10:45:13 +00:00
Daniel P. Berrangé
5288d9d085 qga: implement a 'guest-get-load' command
Provide a way to report the process load average, via a new
'guest-get-load' command.

This is only implemented for POSIX platforms providing 'getloadavg'.

Example illustrated with qmp-shell:

(QEMU) guest-get-load
{
    "return": {
        "load15m": 1.546875,
        "load1m": 1.669921875,
        "load5m": 1.9306640625
    }
}

Windows has no native equivalent API, but it would be possible to
simulate it as illustrated here (BSD-3-Clause):

  https://github.com/giampaolo/psutil/pull/1485

This is left as an exercise for future contributors.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Konstantin Kostiuk <kkostiuk@redhat.com>
Message-ID: <20241202121927.864335-1-berrange@redhat.com>
Signed-off-by: Konstantin Kostiuk <kkostiuk@redhat.com>
2025-01-06 12:48:46 +02:00
Phil Dennis-Jordan
2352159c97 hw/display/apple-gfx: Introduce ParavirtualizedGraphics.Framework support
MacOS provides a framework (library) that allows any vmm to implement a
paravirtualized 3d graphics passthrough to the host metal stack called
ParavirtualizedGraphics.Framework (PVG). The library abstracts away
almost every aspect of the paravirtualized device model and only provides
and receives callbacks on MMIO access as well as to share memory address
space between the VM and PVG.

This patch implements a QEMU device that drives PVG for the VMApple
variant of it.

Signed-off-by: Alexander Graf <graf@amazon.com>
Co-authored-by: Alexander Graf <graf@amazon.com>

Subsequent changes:

 * Cherry-pick/rebase conflict fixes, API use updates.
 * Moved from hw/vmapple/ (useful outside that machine type)
 * Overhaul of threading model, many thread safety improvements.
 * Asynchronous rendering.
 * Memory and object lifetime fixes.
 * Refactoring to split generic and (vmapple) MMIO variant specific
   code.

Implementation wise, most of the complexity lies in the differing threading
models of ParavirtualizedGraphics.framework, which uses libdispatch and
internal locks, versus QEMU, which heavily uses the BQL, especially during
memory-mapped device I/O. Great care has therefore been taken to prevent
deadlocks by never calling into PVG methods while holding the BQL, and
similarly never acquiring the BQL in a callback from PVG. Different strategies
have been used (libdispatch, blocking and non-blocking BHs, RCU, etc.)
depending on the specific requirements at each framework entry and exit point.

Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-ID: <20241223221645.29911-3-phil@philjordan.eu>
[PMD: Re-ordered imported headers, style fixups]
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-12-31 21:21:34 +01:00
Thomas Huth
42490ac980 meson.build: Disallow libnfs v6 to fix the broken macOS build
The macOS builds in our CI (and possibly other very recent distros)
are currently broken since the update to libnfs version 6 there.
That version apparently comes with a big API breakage. v5.0.3 was
the final release of the old API (see the libnfs commit here:
https://github.com/sahlberg/libnfs/commit/4379837 ).

Disallow version 6.x for now to get the broken CI job working
again. Once somebody had enough time to adapt our code in
block/nfs.c, we can revert this change again.

Message-ID: <20241218065157.209020-1-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
(cherry picked from commit e2d98f257138b83b6a492d1da5847a7fe0930d10)
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2024-12-20 21:37:30 +03:00
Philippe Mathieu-Daudé
edbceacf5a meson: Do not define CONFIG_DEVICES on user emulation
CONFIG_DEVICES is not generated on user emulation, so
do not define it.

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20241218151256.68625-1-philmd@linaro.org>
2024-12-20 17:44:57 +01:00
Thomas Huth
e2d98f2571 meson.build: Disallow libnfs v6 to fix the broken macOS build
The macOS builds in our CI (and possibly other very recent distros)
are currently broken since the update to libnfs version 6 there.
That version apparently comes with a big API breakage. v5.0.3 was
the final release of the old API (see the libnfs commit here:
https://github.com/sahlberg/libnfs/commit/4379837 ).

Disallow version 6.x for now to get the broken CI job working
again. Once somebody had enough time to adapt our code in
block/nfs.c, we can revert this change again.

Message-ID: <20241218065157.209020-1-thuth@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-12-18 11:54:33 +01:00
Paolo Bonzini
de98c17593 rust: build: move strict lints handling to rustc_args.py
Make Cargo use unknown_lints = "allow" as well.  This is more future
proof as we might add new lints to rust/Cargo.toml that are not supported
by older versions of rustc or clippy.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-12-10 18:44:06 +01:00
Paolo Bonzini
90868c3dce rust: cargo: store desired warning levels in workspace Cargo.toml
An extra benefit of workspaces is that they allow to place lint level
settings in a single Cargo.toml; the settings are then inherited by
packages in the workspace.

Correspondingly, teach rustc_args.py to get the unexpected_cfgs
configuration from the workspace Cargo.toml.

Note that it is still possible to allow or deny warnings per crate or
module, via the #![] attribute syntax.  The rust/qemu-api/src/bindings.rs
file is an example.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-12-10 18:44:06 +01:00
Paolo Bonzini
97ed1e9c8e rust: build: generate lint flags from Cargo.toml
Cargo.toml makes it possible to describe the desired lint level settings
in a nice format.  We can extend this to Meson-built crates, by teaching
rustc_args.py to fetch lint and --check-cfg arguments from Cargo.toml.
--check-cfg arguments come from the unexpected_cfgs lint as well as crate
features

Start with qemu-api, since it already has a [lints.rust] table and
an invocation of rustc_args.py.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-12-10 18:44:06 +01:00
Paolo Bonzini
f3a6e9bc47 rust: build: move rustc_args.py invocation to qemu-api crate
Only qemu-api needs access to the symbols in config-host.h.  Remove
the temptation to use them elsewhere by limiting the --cfg arguments to
the qemu-api crate.

Per-crate invocation of the script will also be needed to add --check-cfg
options for each crate's features (when more complex, build-time
configurable devices are added in the future).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-12-10 18:44:06 +01:00
Paolo Bonzini
cb7ada5409 rust: allow using build-root bindings.rs from cargo
Right now, using cargo with QEMU requires copying by hand the bindings.rs to the
source tree.  Instead, we can use an include file to escape the cage of cargo's
mandated source directory structure.

By running cargo within meson's "devenv" and adding a MESON_BUILD_ROOT
environment variable, it is easy for build.rs to find the file.  However, the
file must be symlinked into cargo's output directory for rust-analyzer to find
it.

Suggested-by: Junjie Mao <junjie.mao@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-12-10 18:44:06 +01:00
Paolo Bonzini
8c28667503 rust: apply --cfg MESON to all crates
We might have more uses for --cfg MESON, even though right now it's only
qemu-api that has generated files.  Since we're going to add more flags
to the add_project_arguments calls for Rust, it makes sense to also add
--cfg MESON everywhere.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-12-10 18:44:06 +01:00
Philippe Mathieu-Daudé
5162557574 meson: Add missing SDL dependency to system/main.c
When building QEMU configure with --disable-gtk --disable-cocoa
on macOS we get:

  User interface
    Cocoa support                   : NO
    SDL support                     : YES 2.30.5
    SDL image support               : NO
    GTK support                     : NO
    pixman                          : YES 0.42.2
    VTE support                     : NO
    PNG support                     : YES 1.6.43
    VNC support                     : YES
    VNC SASL support                : YES
    VNC JPEG support                : YES 3.0.3
    spice protocol support          : YES 0.14.4
      spice server support          : NO
    curses support                  : YES
    brlapi support                  : NO

  User defined options
    cocoa                           : disabled
    docs                            : disabled
    gtk                             : disabled

  ../system/main.c:30:10: fatal error: 'SDL.h' file not found
     30 | #include <SDL.h>
        |          ^~~~~~~
  1 error generated.

Fix by adding the SDL dependency to main.c it's CFLAGS contains
the SDL include directory.

Fixes: 64ed6f92ff ("meson: link emulators without Makefile.target")
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20241120114943.85080-1-philmd@linaro.org>
2024-12-03 12:26:24 +01:00
Thomas Huth
4e035201b9 meson.build: Refuse XCode versions < v15.0
According to our support policy, we only support the two latest
major versions of macOS, and we already removed compatibility code
for older versions. However, it's still possible that people install
an older version of XCode on a recent version of macOS - which won't
be able to compile QEMU anymore, see for example the ticket here:

 https://gitlab.com/qemu-project/qemu/-/issues/2694

Thus let's set the expectations right and refuse older versions of
XCode that do not match the two latest versions of macOS anymore.

Message-ID: <20241126081054.244365-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-11-27 09:19:59 +01:00
Peter Maydell
a1dacb6691 * rust: cleanups
* rust: integration tests
 * rust/pl011: add support for migration
 * rust/pl011: add TYPE_PL011_LUMINARY device
 * rust: add support for older compilers and bindgen
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Merge tag 'for-upstream-rust' of https://gitlab.com/bonzini/qemu into staging

* rust: cleanups
* rust: integration tests
* rust/pl011: add support for migration
* rust/pl011: add TYPE_PL011_LUMINARY device
* rust: add support for older compilers and bindgen

# -----BEGIN PGP SIGNATURE-----
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# gpg: Signature made Wed 06 Nov 2024 18:00:50 GMT
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* tag 'for-upstream-rust' of https://gitlab.com/bonzini/qemu: (39 commits)
  dockerfiles: install bindgen from cargo on Ubuntu 22.04
  rust: make rustfmt optional
  rust: allow older version of bindgen
  rust: do not use --generate-cstr
  rust: allow version 1.63.0 of rustc
  rust: clean up detection of the language
  rust: do not use MaybeUninit::zeroed()
  rust: introduce alternative implementation of offset_of!
  rust: create a cargo workspace
  rust: synchronize dependencies between subprojects and Cargo.lock
  rust: silence unknown warnings for the sake of old compilers
  rust: introduce a c_str macro
  rust: use std::os::raw instead of core::ffi
  rust: fix cfgs of proc-macro2 for 1.63.0
  rust: patch bilge-impl to allow compilation with 1.63.0
  rust/pl011: Use correct masks for IBRD and FBRD
  rust/pl011: remove commented out C code
  rust/pl011: add TYPE_PL011_LUMINARY device
  rust/pl011: move CLK_NAME static to function scope
  rust/pl011: add support for migration
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-11-06 21:27:47 +00:00
Peter Maydell
731d58b545 * Remove deprecated 'loaded' property from crypto objects
* Fix error checking of hash function in gcrypt
 * Perform runtime check for hash functions in gcrypt
 * Add SM3 hash function to pbkdf
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Merge tag 'crypto-fixes-pull-request' of https://gitlab.com/berrange/qemu into staging

* Remove deprecated 'loaded' property from crypto objects
* Fix error checking of hash function in gcrypt
* Perform runtime check for hash functions in gcrypt
* Add SM3 hash function to pbkdf

# -----BEGIN PGP SIGNATURE-----
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# gpg: Signature made Tue 05 Nov 2024 18:40:25 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

* tag 'crypto-fixes-pull-request' of https://gitlab.com/berrange/qemu:
  crypto: perform runtime check for hash/hmac support in gcrypt
  crypto: fix error check on gcry_md_open
  crypto: Introduce SM3 hash hmac pbkdf algorithm
  crypto: purge 'loaded' property that was not fully removed

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-11-06 17:28:36 +00:00
Paolo Bonzini
5b1b5a8ae4 rust: make rustfmt optional
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-11-06 17:12:17 +01:00
Paolo Bonzini
c2988dfbb0 rust: allow older version of bindgen
Cope with the old version that is provided in Debian 12.

--size_t-is-usize is needed on bindgen <0.61.0, and it was removed in
bindgen 0.65.0, so check for it in meson.build.

--merge-extern-blocks was added in 0.61.0.

--formatter rustfmt was added in 0.65.0 and is the default, so remove it.

Apart from Debian 12 and Ubuntu 22.04, all other supported distros have
version 0.66.x of bindgen or newer (or do not have bindgen at all).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2024-11-06 17:11:24 +01:00
Peter Maydell
851ed57d7a tests/tcg: Replace -mpower8-vector with -mcpu=power8
linux-user: Fix GDB complaining about system-supplied DSO string table index
 linux-user: Allow custom rt signal mappings
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Merge tag 'pull-lu-20241105' of https://gitlab.com/rth7680/qemu into staging

tests/tcg: Replace -mpower8-vector with -mcpu=power8
linux-user: Fix GDB complaining about system-supplied DSO string table index
linux-user: Allow custom rt signal mappings

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# gpg: Signature made Tue 05 Nov 2024 15:02:04 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-lu-20241105' of https://gitlab.com/rth7680/qemu:
  tests/tcg: Add SIGRTMIN/SIGRTMAX test
  linux-user: Allow custom rt signal mappings
  linux-user: Fix GDB complaining about system-supplied DSO string table index
  tests/tcg: Replace -mpower8-vector with -mcpu=power8

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-11-06 15:01:16 +00:00
Peter Maydell
f15f7273ea target-arm queue:
* Fix MMU indexes for AArch32 Secure PL1&0 in a less complex and buggy way
  * Fix SVE SDOT/UDOT/USDOT (4-way, indexed)
  * softfloat: set 2-operand NaN propagation rule at runtime
  * disas: Fix build against Capstone v6 (again)
  * hw/rtc/ds1338: Trace send and receive operations
  * hw/timer/imx_gpt: Convert DPRINTF to trace events
  * hw/watchdog/wdt_imx2: Remove redundant assignment
  * hw/sensor/tmp105: Convert printf() to trace event, add tracing for read/write access
  * hw/net/npcm_gmac: Change error log to trace event
  * target/arm: Enable FEAT_CMOW for -cpu max
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Merge tag 'pull-target-arm-20241105' of https://git.linaro.org/people/pmaydell/qemu-arm into staging

target-arm queue:
 * Fix MMU indexes for AArch32 Secure PL1&0 in a less complex and buggy way
 * Fix SVE SDOT/UDOT/USDOT (4-way, indexed)
 * softfloat: set 2-operand NaN propagation rule at runtime
 * disas: Fix build against Capstone v6 (again)
 * hw/rtc/ds1338: Trace send and receive operations
 * hw/timer/imx_gpt: Convert DPRINTF to trace events
 * hw/watchdog/wdt_imx2: Remove redundant assignment
 * hw/sensor/tmp105: Convert printf() to trace event, add tracing for read/write access
 * hw/net/npcm_gmac: Change error log to trace event
 * target/arm: Enable FEAT_CMOW for -cpu max

# -----BEGIN PGP SIGNATURE-----
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# -----END PGP SIGNATURE-----
# gpg: Signature made Tue 05 Nov 2024 11:19:06 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]
# 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-20241105' of https://git.linaro.org/people/pmaydell/qemu-arm: (31 commits)
  target/arm: Enable FEAT_CMOW for -cpu max
  hw/net/npcm_gmac: Change error log to trace event
  hw/sensor/tmp105: Convert printf() to trace event, add tracing for read/write access
  hw/watchdog/wdt_imx2: Remove redundant assignment
  hw/timer/imx_gpt: Convert DPRINTF to trace events
  hw/rtc/ds1338: Trace send and receive operations
  disas: Fix build against Capstone v6 (again)
  target/arm: Fix SVE SDOT/UDOT/USDOT (4-way, indexed)
  target/arm: Add new MMU indexes for AArch32 Secure PL1&0
  Revert "target/arm: Fix usage of MMU indexes when EL3 is AArch32"
  softfloat: Remove fallback rule from pickNaN()
  target/rx: Explicitly set 2-NaN propagation rule
  target/openrisc: Explicitly set 2-NaN propagation rule
  target/microblaze: Explicitly set 2-NaN propagation rule
  target/microblaze: Move setting of float rounding mode to reset
  target/alpha: Explicitly set 2-NaN propagation rule
  target/i386: Set 2-NaN propagation rule explicitly
  target/xtensa: Explicitly set 2-NaN propagation rule
  target/xtensa: Factor out calls to set_use_first_nan()
  target/sparc: Explicitly set 2-NaN propagation rule
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-11-05 21:27:18 +00:00