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2 daysaccel: Pass AccelState argument to gdbstub_supported_sstep_flags()Philippe Mathieu-Daudé1-1/+1
In order to have AccelClass methods instrospect their state, we need to pass AccelState by argument. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250703173248.44995-37-philmd@linaro.org>
2 daysaccel: Remove unused MachineState argument of AccelClass::setup_post()Philippe Mathieu-Daudé1-1/+1
This method only accesses xen_domid/xen_domid_restrict, which are both related to the 'accelerator', not the machine. Besides, xen_domid aims to be in Xen AccelState and xen_domid_restrict a xen_domid_restrict QOM property. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250703173248.44995-36-philmd@linaro.org>
2 daysaccel: Directly pass AccelState argument to AccelClass::has_memory()Philippe Mathieu-Daudé1-1/+1
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20250703173248.44995-34-philmd@linaro.org>
2 daysaccel: Propagate AccelState to AccelClass::init_machine()Philippe Mathieu-Daudé1-1/+1
In order to avoid init_machine() to call current_accel(), pass AccelState along. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20250703173248.44995-31-philmd@linaro.org>
2 daysaccel: Keep reference to AccelOpsClass in AccelClassPhilippe Mathieu-Daudé1-0/+3
Allow dereferencing AccelOpsClass outside of accel/accel-system.c. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20250703173248.44995-30-philmd@linaro.org>
4 daysplugins: Update plugin version and add notesRowan Hart1-1/+8
This patch updates the plugin version to gate new APIs and adds notes describing what has been added. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Rowan Hart <rowanbhart@gmail.com> Message-ID: <20250624175351.440780-9-rowanbhart@gmail.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-ID: <20250627112512.1880708-13-alex.bennee@linaro.org>
4 daysplugins: Add memory hardware address read/write APIRowan Hart1-0/+93
This patch adds functions to the plugins API to allow plugins to read and write memory via hardware addresses. The functions use the current address space of the current CPU in order to avoid exposing address space information to users. A later patch may want to add a function to permit a specified address space, for example to facilitate architecture-specific plugins that want to operate on them, for example reading ARM secure memory. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Rowan Hart <rowanbhart@gmail.com> Message-ID: <20250624175351.440780-6-rowanbhart@gmail.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-ID: <20250627112512.1880708-10-alex.bennee@linaro.org>
4 daysplugins: Add memory virtual address write APIRowan Hart1-0/+21
This patch adds functions to the plugins API to allow reading and writing memory via virtual addresses. These functions only permit doing so on the current CPU, because there is no way to ensure consistency if plugins are allowed to read or write to other CPUs that aren't currently in the context of the plugin. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Rowan Hart <rowanbhart@gmail.com> Message-ID: <20250624175351.440780-5-rowanbhart@gmail.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-ID: <20250627112512.1880708-9-alex.bennee@linaro.org>
4 daysplugins: Add enforcement of QEMU_PLUGIN_CB flags in register R/W callbacksRowan Hart2-6/+28
This patch adds functionality to enforce the requested QEMU_PLUGIN_CB_ flags level passed when registering a callback function using the plugins API. Each time a callback is about to be invoked, a thread-local variable will be updated with the level that callback requested. Then, called API functions (in particular, the register read and write API) will call qemu_plugin_get_cb_flags() to check the level is at least the level they require. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Rowan Hart <rowanbhart@gmail.com> Message-ID: <20250624175351.440780-4-rowanbhart@gmail.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-ID: <20250627112512.1880708-8-alex.bennee@linaro.org>
4 daysplugins: Add register write APIRowan Hart1-17/+37
This patch adds a function to the plugins API to allow plugins to write register contents. It also moves the qemu_plugin_read_register function so all the register-related functions are grouped together in the file. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Rowan Hart <rowanbhart@gmail.com> Message-ID: <20250624175351.440780-3-rowanbhart@gmail.com> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-ID: <20250627112512.1880708-7-alex.bennee@linaro.org>
11 daysinclude/qemu: replace FSF postal address with licenses URLSean Wei2-4/+4
The LGPLv2.1 boiler-plate in rcu.h and rcu_queue.h still contained the obsolete "51 Franklin Street" postal address. Replace it with the canonical GNU licenses URL recommended by the FSF: https://www.gnu.org/licenses/ Signed-off-by: Sean Wei <me@sean.taipei> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-ID: <20250613.qemu.patch.06@sean.taipei> Signed-off-by: Thomas Huth <thuth@redhat.com>
2025-06-12include/qemu/compiler: add QEMU_UNINITIALIZED attribute macroStefan Hajnoczi1-0/+20
The QEMU_UNINITIALIZED macro is to be used to skip the default compiler variable initialization done by -ftrivial-auto-var-init=zero. Use this in cases where there a method in the device I/O path (or other important hot paths), that has large variables on the stack. A rule of thumb is that "large" means a method with 4kb data in the local stack frame. Any variables which are KB in size, should be annotated with this attribute, to pre-emptively eliminate any potential overhead from the compiler zero'ing memory. Given that this turns off a security hardening feature, when using this to flag variables, it is important that the code is double-checked to ensure there is no possible use of uninitialized data in the method. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-id: 20250610123709.835102-2-berrange@redhat.com [DB: split off patch & rewrite guidance on when to use the annotation] Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-06-06qemu-thread: Document QemuEventAkihiko Odaki1-0/+10
Document QemuEvent to help choose an appropriate synchronization primitive. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Link: https://lore.kernel.org/r/20250529-event-v5-12-53b285203794@daynix.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-06-06qemu-thread: Use futex if available for QemuLockCntAkihiko Odaki1-1/+1
This unlocks the futex-based implementation of QemuLockCnt to Windows. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Link: https://lore.kernel.org/r/20250529-event-v5-6-53b285203794@daynix.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-06-06qemu-thread: Use futex for QemuEvent on WindowsAkihiko Odaki3-16/+10
Use the futex-based implementation of QemuEvent on Windows to remove code duplication and remove the overhead of event object construction and destruction. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Link: https://lore.kernel.org/r/20250526-event-v4-6-5b784cc8e1de@daynix.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-06-06qemu-thread: Replace __linux__ with CONFIG_LINUXAkihiko Odaki1-1/+1
scripts/checkpatch.pl warns for __linux__ saying "architecture specific defines should be avoided". Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Link: https://lore.kernel.org/r/20250526-event-v4-4-5b784cc8e1de@daynix.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-06-06futex: Support WindowsAkihiko Odaki1-12/+41
Windows supports futex-like APIs since Windows 8 and Windows Server 2012. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Link: https://lore.kernel.org/r/20250529-event-v5-2-53b285203794@daynix.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-06-06futex: Check value after qemu_futex_wait()Akihiko Odaki1-0/+9
futex(2) - Linux manual page https://man7.org/linux/man-pages/man2/futex.2.html > Note that a wake-up can also be caused by common futex usage patterns > in unrelated code that happened to have previously used the futex > word's memory location (e.g., typical futex-based implementations of > Pthreads mutexes can cause this under some conditions). Therefore, > callers should always conservatively assume that a return value of 0 > can mean a spurious wake-up, and use the futex word's value (i.e., > the user-space synchronization scheme) to decide whether to continue > to block or not. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Link: https://lore.kernel.org/r/20250529-event-v5-1-53b285203794@daynix.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-05-09Merge tag 'block-pull-request' of https://gitlab.com/stefanha/qemu into stagingStefan Hajnoczi2-0/+160
Pull request Farhan Ali's s390x host PCI support for the block/nvme.c driver. # -----BEGIN PGP SIGNATURE----- # # iQEzBAABCgAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAmgcviUACgkQnKSrs4Gr # c8hRswgAupxH5Zhx50F7GzwZyu9TCF2sphEPd2VuFVxze8Sg6mXnJq5BFTjv9IuC # 0trPppfDyKFKujDk+FA3pl9bT45btm0xctNbFYNRS3HXrVUyMQLy73MlFF2twa5g # U3uiX2d7DAYOdi5O1Cn3bhlByDh4qSko7YyUDFKio+WU57cdJxEd+pUqwyVXrU3E # AMC2ZmJdKFGGC+tWxBIAuWNc5apq9yzbiywR8z62/Z2IC+Bym0RpvCbdklqcZb8O # tpGxDKN8bY6s+hy1NZmA8eBA/iCiu6SUFmNpoe2vSwCFEk9R3gi+UNcuTVt3FaWO # lgzoZSOelmI3JkF0UBqvKsPXt3fdJw== # =KII7 # -----END PGP SIGNATURE----- # gpg: Signature made Thu 08 May 2025 10:22:29 EDT # gpg: using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [ultimate] # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [ultimate] # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * tag 'block-pull-request' of https://gitlab.com/stefanha/qemu: block/nvme: Use host PCI MMIO API include: Add a header to define host PCI MMIO functions util: Add functions for s390x mmio read/write Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-05-08include: Add a header to define host PCI MMIO functionsFarhan Ali1-0/+136
Add a generic API for host PCI MMIO reads/writes (e.g. Linux VFIO BAR accesses). The functions access little endian memory and returns the result in host cpu endianness. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Farhan Ali <alifm@linux.ibm.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-id: 20250430185012.2303-3-alifm@linux.ibm.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-05-08util: Add functions for s390x mmio read/writeFarhan Ali1-0/+24
Starting with z15 (or newer) we can execute mmio instructions from userspace. On older platforms where we don't have these instructions available we can fallback to using system calls to access the PCI mapped resources. This patch adds helper functions for mmio reads and writes for s390x. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Niklas Schnelle <schnelle@linux.ibm.com> Signed-off-by: Farhan Ali <alifm@linux.ibm.com> Acked-by: Thomas Huth <thuth@redhat.com> Message-id: 20250430185012.2303-2-alifm@linux.ibm.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-05-07Merge tag 'for-upstream' of https://gitlab.com/bonzini/qemu into stagingStefan Hajnoczi2-2/+13
* ci: enable RISC-V cross jobs * rust: bump minimum supported version to 1.77 * rust: enable uninlined_format_args lint * initial Emscripten support * small fixes # -----BEGIN PGP SIGNATURE----- # # iQFIBAABCgAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAmgaFq8UHHBib256aW5p # QHJlZGhhdC5jb20ACgkQv/vSX3jHroOxAAf/YPKw5KAoE5SwUqJ0oSOMHrU0w4jc # A2Qiw1uziA6kDmUMUXwWR7Qbd8V7jtihGrgTrIPopeavgWWQeNsBHjN4WxHRI7aq # +429rjzFo9V9tSfgp6UcLQSk/9kC4ygEwPnesHpKd27fS6z9Wg4AQkj1iFipR179 # wC3fqwOqqWZSjfUd7wjo7McFYZgL5j/cxmFXePh8+fdT+6PUKdG9nRW86KUPDZ+A # 8HxcuOW7GZd+LhnYUhi7vlLFo/RgVsGQWj0Q4BDJvUkKa13t9UUCGff7uQP2AC3v # ny0gWDcmbWY1L/QXyNzhgd44X4LAjCmpnonlYnrdZizEmhv3aByd+fANgw== # =uIJK # -----END PGP SIGNATURE----- # gpg: Signature made Tue 06 May 2025 10:03:27 EDT # 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' of https://gitlab.com/bonzini/qemu: (30 commits) gitlab: Enable CI for wasm build tests: Add Dockerfile containing dependencies for Emscripten build meson: Add wasm build in build scripts util: Add coroutine backend for emscripten util: exclude mmap-alloc.c from compilation target on Emscripten Disable options unsupported on Emscripten include/qemu/osdep.h: Add Emscripten-specific OS dependencies block: Fix type conflict of the copy_file_range stub block: Add including of ioctl header for Emscripten build util/cacheflush.c: Update cache flushing mechanism for Emscripten include/glib-compat.h: Poison g_list_sort and g_slist_sort target/s390x: Fix type conflict of GLib function pointers target/ppc: Fix type conflict of GLib function pointers target/i386/cpu.c: Fix type conflict of GLib function pointers target/arm/helper.c: Fix type conflict of GLib function pointers docs: build-system: fix typo ci: run RISC-V cross jobs by default rust: clippy: enable uninlined_format_args lint target/i386/emulate: fix target_ulong format strings docs: rust: update for newer minimum supported version ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-05-06include/qemu/osdep.h: Add Emscripten-specific OS dependenciesKohei Tokunaga1-2/+6
On emscripten, some implementations in os-posix.c can't be used such as daemonizing and changing user. This commit introduces os-wasm.c and os-wasm.h which are forked from os-posix.c and os-posix.h and patched for targetting Emscripten. Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com> Link: https://lore.kernel.org/r/9fc7b106ecf86675b4532bd6778b7b5945442f89.1745820062.git.ktokunaga.mail@gmail.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-05-06util/cacheflush.c: Update cache flushing mechanism for EmscriptenKohei Tokunaga1-0/+7
Although __builtin___clear_cache is used to flush the instruction cache for a specified memory region, this operation doesn't apply to wasm, as its memory isn't executable. Moreover, Emscripten does not support this builtin and fails to compile it with the following error. > fatal error: error in backend: llvm.clear_cache is not supported on wasm To resolve this, this commit removes the call to __builtin___clear_cache for Emscripten build. Signed-off-by: Kohei Tokunaga <ktokunaga.mail@gmail.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Link: https://lore.kernel.org/r/2926a798fa52a3a5b11c3df4edd1643d2b7cdcb9.1745820062.git.ktokunaga.mail@gmail.com Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2025-04-30qemu: Introduce target_long_bits()Philippe Mathieu-Daudé2-0/+9
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-04-30qemu/target_info: Add %target_cpu_type field to TargetInfoPhilippe Mathieu-Daudé1-0/+2
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-04-30system/vl: Filter machine list available for a particular target binaryPhilippe Mathieu-Daudé2-0/+10
Binaries can register a QOM type to filter their machines by filling their TargetInfo::machine_typename field. This can be used by example by main() -> machine_help_func() to filter the machines list. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2025-04-25qemu: Convert target_name() to TargetInfo APIPhilippe Mathieu-Daudé2-0/+33
Have target_name() be a target-agnostic method, dispatching to a per-target TargetInfo singleton structure. By default a stub singleton is used. No logical change expected. Inspired-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250424222112.36194-3-philmd@linaro.org>
2025-04-25qemu: Introduce target_cpu_type()Philippe Mathieu-Daudé1-0/+19
Introduce the target_cpu_type() helper to access the CPU_RESOLVING_TYPE target-specific definition from target-agnostic code. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-Id: <20250417165430.58213-2-philmd@linaro.org>
2025-04-25system/datadir: Add new type constant for DTB filesBALATON Zoltan1-3/+8
Currently DTB files are mixed with ROMs under BIOS type. Separate them under a new type constant and turn defines into an enum while at it. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <ae793d1f81e3577605759c43871722324a1ef2cb.1745402140.git.balaton@eik.bme.hu> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-04-23exec/cpu-all: remove this headerPierrick Bouvier1-3/+0
Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20250325045915.994760-16-pierrick.bouvier@linaro.org>
2025-04-23include/qemu: Remove ifndef CONFIG_USER_ONLY from accel.hRichard Henderson1-6/+4
While setup_post and has_memory will not be used for CONFIG_USER_ONLY, let the struct have constant layout. Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-04-23include/system: Move exec/memory.h to system/memory.hRichard Henderson2-2/+2
Convert the existing includes with sed -i ,exec/memory.h,system/memory.h,g Move the include within cpu-all.h into a !CONFIG_USER_ONLY block. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-04-08test-bdrv-drain: Fix data racesVitalii Mordan1-0/+3
This patch addresses potential data races involving access to Job fields in the test-bdrv-drain test. Fixes: 7253220de4 ("test-bdrv-drain: Test drain vs. block jobs") Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2900 Signed-off-by: Vitalii Mordan <mordan@ispras.ru> Message-ID: <20250402102119.3345626-1-mordan@ispras.ru> [kwolf: Fixed up coding style and one missing atomic access] Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-03-11Merge tag 'net-pull-request' of https://github.com/jasowang/qemu into stagingStefan Hajnoczi1-2/+3
# -----BEGIN PGP SIGNATURE----- # # iQEzBAABCAAdFiEEIV1G9IJGaJ7HfzVi7wSWWzmNYhEFAmfO1zkACgkQ7wSWWzmN # YhET+wf+PkaGeFTNUrOtWpl35fSMKlmOVbb1fkPfuhVBmeY2Vh1EIN3OjqnzdV0F # wxpuk+wwmFiuV1n6RNuMHQ0nz1mhgsSlZh93N5rArC/PUr3iViaT0cb82RjwxhaI # RODBhhy7V9WxEhT9hR8sCP2ky2mrKgcYbjiIEw+IvFZOVQa58rMr2h/cbAb/iH4l # 7T9Wba03JBqOS6qgzSFZOMxvqnYdVjhqXN8M6W9ngRJOjPEAkTB6Evwep6anRjcM # mCUOgkf2sgQwKve8pYAeTMkzXFctvTc/qCU4ZbN8XcoKVVxe2jllGQqdOpMskPEf # slOuINeW5M0K5gyjsb/huqcOTfDI2A== # =/Y0+ # -----END PGP SIGNATURE----- # gpg: Signature made Mon 10 Mar 2025 20:12:41 HKT # gpg: using RSA key 215D46F48246689EC77F3562EF04965B398D6211 # gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [full] # Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211 * tag 'net-pull-request' of https://github.com/jasowang/qemu: tap-linux: Open ipvtap and macvtap Revert "hw/net/net_tx_pkt: Fix overrun in update_sctp_checksum()" util/iov: Do not assert offset is in iov net: move backend cleanup to NIC cleanup net: parameterize the removing client from nc list Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-03-10include/qemu: plugin-memory.h doesn't need cpu-defs.hAlex Bennée1-1/+0
hwaddr is a fixed size on all builds. Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20250304222439.2035603-23-alex.bennee@linaro.org>
2025-03-10util/iov: Do not assert offset is in iovAkihiko Odaki1-2/+3
iov_from_buf(), iov_to_buf(), iov_memset(), and iov_copy() asserts that the given offset fits in the iov while tolerating the specified number of bytes to operate with to be greater than the size of iov. This is inconsistent so remove the assertions. Asserting the offset fits in the iov makes sense if it is expected that there are other operations that process the content before the offset and the content is processed in order. Under this expectation, the offset should point to the end of bytes that are previously processed and fit in the iov. However, this expectation depends on the details of the caller, and did not hold true at least one case and required code to check iov_size(), which is added with commit 83ddb3dbba2e ("hw/net/net_tx_pkt: Fix overrun in update_sctp_checksum()"). Adding such a check is inefficient and error-prone. These functions already tolerate the specified number of bytes to operate with to be greater than the size of iov to avoid such checks so remove the assertions to tolerate invalid offset as well. They return the number of bytes they operated with so their callers can still check the returned value to ensure there are sufficient space at the given offset. Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2025-03-08qemu/atomic128: Include missing 'qemu/atomic.h' headerPhilippe Mathieu-Daudé1-0/+1
qatomic_cmpxchg__nocheck() is declared in "qemu/atomic.h". Include it in order to avoid when refactoring unrelated headers: In file included from ../../accel/tcg/tcg-runtime-gvec.c:22: In file included from include/exec/helper-proto-common.h:10: In file included from include/qemu/atomic128.h:61: host/include/generic/host/atomic128-cas.h.inc:23:11: error: call to undeclared function 'qatomic_cmpxchg__nocheck'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] 23 | r.i = qatomic_cmpxchg__nocheck(ptr_align, c.i, n.i); | ^ 1 error generated. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20241212141018.59428-4-philmd@linaro.org>
2025-03-08qemu/atomic: Rename atomic128-ldst.h headers using .h.inc suffixPhilippe Mathieu-Daudé1-1/+1
Since commit 139c1837db ("meson: rename included C source files to .c.inc"), QEMU standard procedure for included C files is to use *.c.inc. Besides, since commit 6a0057aa22 ("docs/devel: make a statement about includes") this is documented in the Coding Style: If you do use template header files they should be named with the ``.c.inc`` or ``.h.inc`` suffix to make it clear they are being included for expansion. Therefore rename 'atomic128-ldst.h' as 'atomic128-ldst.h.inc'. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20241212141018.59428-3-philmd@linaro.org>
2025-03-08qemu/atomic: Rename atomic128-cas.h headers using .h.inc suffixPhilippe Mathieu-Daudé1-1/+1
Since commit 139c1837db ("meson: rename included C source files to .c.inc"), QEMU standard procedure for included C files is to use *.c.inc. Besides, since commit 6a0057aa22 ("docs/devel: make a statement about includes") this is documented in the Coding Style: If you do use template header files they should be named with the ``.c.inc`` or ``.h.inc`` suffix to make it clear they are being included for expansion. Therefore rename 'atomic128-cas.h' as 'atomic128-cas.h.inc'. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20241212141018.59428-2-philmd@linaro.org>
2025-03-07Merge tag 'accel-cpus-20250306' of https://github.com/philmd/qemu into stagingStefan Hajnoczi4-115/+97
Generic CPUs / accelerators patch queue - Merge "qemu/clang-tsa.h" within "qemu/compiler.h" - Various cleanups around accelerators initialization code (better user/system split) - Various trivial cleanups in accel/tcg/, Guard few TCG calls with tcg_enabled() - Explicit disassemble_info endianness - Improve dual-endianness support for MicroBlaze # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEE+qvnXhKRciHc/Wuy4+MsLN6twN4FAmfJw08ACgkQ4+MsLN6t # wN70whAAtfcdWtqseFfb6fvDtjflgxN51Ui0iaOECXUA18USKriGy34eBcMYMiM2 # +eKgU7+jI6JGE4+burcgWUsPpFFF951/A8+lyIbFgO5yToTDmC+qNe4XfmMAIyXq # uf9Obr2c0Xk9luh4odb+jPAQodw/7G1fKgcCVIJNDCl/xEcPhS9eNpTaHwcVnkWI # K6KrxWXOsqG6+evJBPWYoXtOOyt0+JcwAsJoGhprwtGm3P9+jSVXsgeGsJVyZcna # f32JtjWL754O8XeMkOn4x6rt58VrCIMKI9xT7keDyuhTCq0Zki9RO2nMU2dSw5mN # AfL9hxqUy0Nijnyslg3ugujDfTePsNyLdwwH7n0mnoD72ELi6WnhDsmOThuEB3Rd # 4/kdwTJfA/rlWk/GF1tbKW7AvQZokRARtzmL3V0HmGJu57lX+2JuszEdYBkqDEP7 # GH1I10B2yANUm+C9y3X8qWOU7Ws433ebJeJoZuyfnbZ9Me+UfRmql/oS+V8ata2i # fArEItpldUFrWRyYLkTbXrh2dgyV9yJTEir/lzOzeAZZzyabTbjf2z9qnh976GGO # 1QnDy5QA4f54kDBUZe7JK26TZsHPch7cgqXW6f8tRlJF7A9hxGK8d2TUV/lC3/vx # LUOlWNu03PhiruYmZEcWOsY3Jt9jRCF6lIryrnaJsqnVOVmMUMM= # =3TRh # -----END PGP SIGNATURE----- # gpg: Signature made Thu 06 Mar 2025 23:46:23 HKT # gpg: using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE # gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full] # Primary key fingerprint: FAAB E75E 1291 7221 DCFD 6BB2 E3E3 2C2C DEAD C0DE * tag 'accel-cpus-20250306' of https://github.com/philmd/qemu: (54 commits) include: Poison TARGET_PHYS_ADDR_SPACE_BITS definition system: Open-code qemu_init_arch_modules() using target_name() target/i386: Mark WHPX APIC region as little-endian target/alpha: Do not mix exception flags and FPCR bits target/riscv: Convert misa_mxl_max using GLib macros target/riscv: Declare RISCVCPUClass::misa_mxl_max as RISCVMXL target/xtensa: Finalize config in xtensa_register_core() target/sparc: Constify SPARCCPUClass::cpu_def target/i386: Constify X86CPUModel uses disas: Remove target_words_bigendian() call in initialize_debug_target() target/xtensa: Set disassemble_info::endian value in disas_set_info() target/sh4: Set disassemble_info::endian value in disas_set_info() target/riscv: Set disassemble_info::endian value in disas_set_info() target/ppc: Set disassemble_info::endian value in disas_set_info() target/mips: Set disassemble_info::endian value in disas_set_info() target/microblaze: Set disassemble_info::endian value in disas_set_info target/arm: Set disassemble_info::endian value in disas_set_info() target: Set disassemble_info::endian value for big-endian targets target: Set disassemble_info::endian value for little-endian targets target/mips: Fix possible MSA int overflow ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-03-06accel: Forward-declare AccelOpsClass in 'qemu/typedefs.h'Philippe Mathieu-Daudé1-0/+1
The heavily imported "system/cpus.h" header includes "accel-ops.h" to get AccelOpsClass type declaration. Reduce headers pressure by forward declaring it in "qemu/typedefs.h", where we already declare the AccelCPUState type. Reduce "system/cpus.h" inclusions by only including "system/accel-ops.h" when necessary. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250123234415.59850-14-philmd@linaro.org>
2025-03-06qemu/compiler: Absorb 'clang-tsa.h'Philippe Mathieu-Daudé3-115/+96
We already have "qemu/compiler.h" for compiler-specific arrangements, automatically included by "qemu/osdep.h" for each source file. No need to explicitly include a header for a Clang particularity. Suggested-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250117170201.91182-1-philmd@linaro.org>
2025-03-06migration: Add save_live_complete_precopy_thread handlerMaciej S. Szmigiero1-0/+3
This SaveVMHandler helps device provide its own asynchronous transmission of the remaining data at the end of a precopy phase via multifd channels, in parallel with the transfer done by save_live_complete_precopy handlers. These threads are launched only when multifd device state transfer is supported. Management of these threads in done in the multifd migration code, wrapping them in the generic thread pool. Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com> Reviewed-by: Peter Xu <peterx@redhat.com> Link: https://lore.kernel.org/qemu-devel/eac74a4ca7edd8968bbf72aa07b9041c76364a16.1741124640.git.maciej.szmigiero@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-03-06migration: Add thread pool of optional load threadsMaciej S. Szmigiero1-0/+2
Some drivers might want to make use of auxiliary helper threads during VM state loading, for example to make sure that their blocking (sync) I/O operations don't block the rest of the migration process. Add a migration core managed thread pool to facilitate this use case. The migration core will wait for these threads to finish before (re)starting the VM at destination. Reviewed-by: Fabiano Rosas <farosas@suse.de> Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com> Link: https://lore.kernel.org/qemu-devel/b09fd70369b6159c75847e69f235cb908b02570c.1741124640.git.maciej.szmigiero@oracle.com Signed-off-by: Cédric Le Goater <clg@redhat.com>
2025-03-04hw/vmapple/aes: Introduce aes engineAlexander Graf1-0/+15
VMApple contains an "aes" engine device that it uses to encrypt and decrypt its nvram. It has trivial hard coded keys it uses for that purpose. Add device emulation for this device model. 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: <20241223221645.29911-10-phil@philjordan.eu> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-02-22Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu ↵Stefan Hajnoczi1-0/+22
into staging virtio,pc,pci: features, fixes, cleanups Features: SR-IOV emulation for pci virtio-mem-pci support for s390 interleave support for cxl big endian support for vdpa svq new QAPI events for vhost-user Also vIOMMU reset order fixups are in. Fixes, cleanups all over the place. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # -----BEGIN PGP SIGNATURE----- # # iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAme4b8sPHG1zdEByZWRo # YXQuY29tAAoJECgfDbjSjVRpHKcIAKPJsVqPdda2dJ7b7FdyRT0Q+uwezXqaGHd4 # 7Lzih1wsxYNkwIAyPtEb76/21qiS7BluqlUCfCB66R9xWjP5/KfvAFj4/r4AEduE # fxAgYzotNpv55zcRbcflMyvQ42WGiZZHC+o5Lp7vDXUP3pIyHrl0Ydh5WmcD+hwS # BjXvda58TirQpPJ7rUL+sSfLih17zQkkDcfv5/AgorDy1wK09RBKwMx/gq7wG8yJ # twy8eBY2CmfmFD7eTM+EKqBD2T0kwLEeLfS/F/tl5Fyg6lAiYgYtCbGLpAmWErsg # XZvfZmwqL7CNzWexGvPFnnLyqwC33WUP0k0kT88Y5wh3/h98blw= # =tej8 # -----END PGP SIGNATURE----- # gpg: Signature made Fri 21 Feb 2025 20:21:31 HKT # gpg: using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469 # gpg: issuer "mst@redhat.com" # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full] # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" [full] # Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67 # Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469 * tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (41 commits) docs/devel/reset: Document reset expectations for DMA and IOMMU hw/vfio/common: Add a trace point in vfio_reset_handler hw/arm/smmuv3: Move reset to exit phase hw/i386/intel-iommu: Migrate to 3-phase reset hw/virtio/virtio-iommu: Migrate to 3-phase reset vhost-user-snd: correct the calculation of config_size net: vhost-user: add QAPI events to report connection state hw/virtio/virtio-nsm: Respond with correct length vdpa: Fix endian bugs in shadow virtqueue MAINTAINERS: add more files to `vhost` cryptodev/vhost: allocate CryptoDevBackendVhost using g_mem0() vhost-iova-tree: Update documentation vhost-iova-tree, svq: Implement GPA->IOVA & partial IOVA->HVA trees vhost-iova-tree: Implement an IOVA-only tree amd_iommu: Use correct bitmask to set capability BAR amd_iommu: Use correct DTE field for interrupt passthrough hw/virtio: reset virtio balloon stats on machine reset mem/cxl_type3: support 3, 6, 12 and 16 interleave ways hw/mem/cxl_type3: Ensure errp is set on realization failure hw/mem/cxl_type3: Fix special_ops memory leak on msix_init_exclusive_bar() failure ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-02-21vhost-iova-tree, svq: Implement GPA->IOVA & partial IOVA->HVA treesJonah Palmer1-0/+22
Creates and supports a GPA->IOVA tree and a partial IOVA->HVA tree by splitting up guest-backed memory maps and host-only memory maps from the full IOVA->HVA tree. That is, any guest-backed memory maps are now stored in the GPA->IOVA tree and host-only memory maps stay in the IOVA->HVA tree. Also propagates the GPAs (in_addr/out_addr) of a VirtQueueElement to vhost_svq_translate_addr() to translate GPAs to IOVAs via the GPA->IOVA tree (when descriptors are backed by guest memory). For descriptors backed by host-only memory, the existing partial SVQ IOVA->HVA tree is used. GPAs are unique in the guest's address space, ensuring unambiguous IOVA translations. This avoids the issue where different GPAs map to the same HVA, causing the original HVA->IOVA translation to potentially return an IOVA associated with the wrong intended GPA. Signed-off-by: Jonah Palmer <jonah.palmer@oracle.com> Acked-by: Eugenio Pérez <eperezma@redhat.com> Message-Id: <20250217144936.3589907-3-jonah.palmer@oracle.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-02-18tcg: Remove TCG_OVERSIZED_GUESTRichard Henderson1-15/+3
This is now prohibited in configuration. Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2025-02-14qemu/timer: Clarify timer_new*() must be freed with timer_free()Philippe Mathieu-Daudé1-0/+10
There was not mention QEMUTimer created with timer_new*() must be released with timer_free() instead of g_free(), because then active timers are removed from the active list. Update the documentation mentioning timer_free(). Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
generated by cgit v1.1 at 2025-07-06 19:49:21 +0000