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2021-09-27qapi: Convert simple union SocketAddressLegacy to flat oneMarkus Armbruster
Simple unions predate flat unions. Having both complicates the QAPI schema language and the QAPI generator. We haven't been using simple unions in new code for a long time, because they are less flexible and somewhat awkward on the wire. To prepare for their removal, convert simple union SocketAddressLegacy to an equivalent flat one, with existing enum SocketAddressType replacing implicit enum type SocketAddressLegacyKind. Adds some boilerplate to the schema, which is a bit ugly, but a lot easier to maintain than the simple union feature. Cc: "Daniel P. Berrangé" <berrange@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Message-Id: <20210917143134.412106-9-armbru@redhat.com>
2021-09-15util: Remove redundant checks in the openpty()AlexChen
As we can see from the following function call stack, amaster and aslave can not be NULL: char_pty_open() -> qemu_openpty_raw() -> openpty(). In addition, according to the API specification for openpty(): https://www.gnu.org/software/libc/manual/html_node/Pseudo_002dTerminal-Pairs.html, the arguments name, termp and winp can all be NULL, but arguments amaster or aslave can not be NULL. Finally, amaster and aslave has been dereferenced at the beginning of the openpty(). So the checks on amaster and aslave in the openpty() are redundant. Remove them. Reported-by: Euler Robot <euler.robot@huawei.com> Signed-off-by: Alex Chen <alex.chen@huawei.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <5F9FE5B8.1030803@huawei.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-09-13util: Suppress -Wstringop-overflow in qemu_thread_startRichard Henderson
This seems to be either a glibc or gcc bug, but the code appears to be fine with the warning suppressed. Signed-off-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20210803211907.150525-1-richard.henderson@linaro.org> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-09-07Merge remote-tracking branch ↵Peter Maydell
'remotes/stefanha-gitlab/tags/block-pull-request' into staging Pull request Userspace NVMe driver patches. # gpg: Signature made Tue 07 Sep 2021 09:13:57 BST # gpg: using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full] # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [full] # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha-gitlab/tags/block-pull-request: block/nvme: Only report VFIO error on failed retry util/vfio-helpers: Let qemu_vfio_do_mapping() propagate Error util/vfio-helpers: Simplify qemu_vfio_dma_map() returning directly util/vfio-helpers: Use error_setg in qemu_vfio_find_[fixed/temp]_iova util/vfio-helpers: Extract qemu_vfio_water_mark_reached() util/vfio-helpers: Pass Error handle to qemu_vfio_dma_map() block/nvme: Have nvme_create_queue_pair() report errors consistently util/vfio-helpers: Remove unreachable code in qemu_vfio_dma_map() util/vfio-helpers: Replace qemu_mutex_lock() calls with QEMU_LOCK_GUARD util/vfio-helpers: Let qemu_vfio_verify_mappings() use error_report() block/nvme: Use safer trace format string Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-07util/vfio-helpers: Let qemu_vfio_do_mapping() propagate ErrorPhilippe Mathieu-Daudé
Pass qemu_vfio_do_mapping() an Error* argument so it can propagate any error to callers. Replace error_report() which only report to the monitor by the more generic error_setg_errno(). Reviewed-by: Fam Zheng <fam@euphon.net> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20210902070025.197072-11-philmd@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2021-09-07util/vfio-helpers: Simplify qemu_vfio_dma_map() returning directlyPhilippe Mathieu-Daudé
To simplify qemu_vfio_dma_map(): - reduce 'ret' (returned value) scope by returning errno directly, - remove the goto 'out' label. Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20210902070025.197072-10-philmd@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2021-09-07util/vfio-helpers: Use error_setg in qemu_vfio_find_[fixed/temp]_iovaPhilippe Mathieu-Daudé
Both qemu_vfio_find_fixed_iova() and qemu_vfio_find_temp_iova() return an errno which is unused (or overwritten). Have them propagate eventual errors to callers, returning a boolean (which is what the Error API recommends, see commit e3fe3988d78 "error: Document Error API usage rules" for rationale). Suggested-by: Klaus Jensen <k.jensen@samsung.com> Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20210902070025.197072-9-philmd@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2021-09-07util/vfio-helpers: Extract qemu_vfio_water_mark_reached()Philippe Mathieu-Daudé
Extract qemu_vfio_water_mark_reached() for readability, and have it provide an error hint it its Error* handle. Suggested-by: Klaus Jensen <k.jensen@samsung.com> Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20210902070025.197072-8-philmd@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2021-09-07util/vfio-helpers: Pass Error handle to qemu_vfio_dma_map()Philippe Mathieu-Daudé
Currently qemu_vfio_dma_map() displays errors on stderr. When using management interface, this information is simply lost. Pass qemu_vfio_dma_map() an Error** handle so it can propagate the error to callers. Reviewed-by: Fam Zheng <fam@euphon.net> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20210902070025.197072-7-philmd@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2021-09-07util/vfio-helpers: Remove unreachable code in qemu_vfio_dma_map()Philippe Mathieu-Daudé
qemu_vfio_add_mapping() returns a pointer to an indexed entry in pre-allocated QEMUVFIOState::mappings[], thus can not be NULL. Remove the pointless check. Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20210902070025.197072-5-philmd@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2021-09-07util/vfio-helpers: Replace qemu_mutex_lock() calls with QEMU_LOCK_GUARDPhilippe Mathieu-Daudé
Simplify qemu_vfio_dma_[un]map() handlers by replacing a pair of qemu_mutex_lock/qemu_mutex_unlock calls by the WITH_QEMU_LOCK_GUARD macro. Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20210902070025.197072-4-philmd@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2021-09-07util/vfio-helpers: Let qemu_vfio_verify_mappings() use error_report()Philippe Mathieu-Daudé
Instead of displaying the error on stderr, use error_report() which also report to the monitor. Reviewed-by: Fam Zheng <fam@euphon.net> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Klaus Jensen <k.jensen@samsung.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-id: 20210902070025.197072-3-philmd@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2021-09-06qemu-sockets: fix unix socket path copy (again)Michael Tokarev
Commit 4cfd970ec188558daa6214f26203fe553fb1e01f added an assert which ensures the path within an address of a unix socket returned from the kernel is at least one byte and does not exceed sun_path buffer. Both of this constraints are wrong: A unix socket can be unnamed, in this case the path is completely empty (not even \0) And some implementations (notable linux) can add extra trailing byte (\0) _after_ the sun_path buffer if we passed buffer larger than it (and we do). So remove the assertion (since it causes real-life breakage) but at the same time fix the usage of sun_path. Namely, we should not access sun_path[0] if kernel did not return it at all (this is the case for unnamed sockets), and use the returned salen when copyig actual path as an upper constraint for the amount of bytes to copy - this will ensure we wont exceed the information provided by the kernel, regardless whenever there is a trailing \0 or not. This also helps with unnamed sockets. Note the case of abstract socket, the sun_path is actually a blob and can contain \0 characters, - it should not be passed to g_strndup and the like, it should be accessed by memcpy-like functions. Fixes: 4cfd970ec188558daa6214f26203fe553fb1e01f Fixes: http://bugs.debian.org/993145 Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> CC: qemu-stable@nongnu.org
2021-08-04util: fix abstract socket path copyMarc-André Lureau
Commit 776b97d360 "qemu-sockets: add abstract UNIX domain socket support" neglected to update socket_sockaddr_to_address_unix() and copied the whole sun_path without taking "salen" into account. Later, commit 3b14b4ec49 "sockets: Fix socket_sockaddr_to_address_unix() for abstract sockets" handled the abstract UNIX path, by stripping the leading \0 character and fixing address details, but didn't use salen either. Not taking "salen" into account may result in incorrect "path" being returned in monitors commands, as we read past the address which is not necessarily \0-terminated. Fixes: 776b97d3605ed0fc94443048fdf988c7725e38a9 Fixes: 3b14b4ec49a801067da19d6b8469eb1c1911c020 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: xiaoqiang zhao <zxq_yx_007@163.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2021-07-26util/selfmap: Discard mapping on errorRichard Henderson
From clang-13: util/selfmap.c:26:21: error: variable 'errors' set but not used \ [-Werror,-Wunused-but-set-variable] Quite right of course, but there's no reason not to check errors. First, incrementing errors is incorrect, because qemu_strtoul returns an errno not a count -- just or them together so that we have a non-zero value at the end. Second, if we have an error, do not add the struct to the list, but free it instead. Cc: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-22Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into ↵Peter Maydell
staging Bugfixes. # gpg: Signature made Thu 22 Jul 2021 14:11:27 BST # 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 * remotes/bonzini-gitlab/tags/for-upstream: configure: Let --without-default-features disable vhost-kernel and vhost-vdpa configure: Fix the default setting of the "xen" feature configure: Allow vnc to get disabled with --without-default-features configure: Fix --without-default-features propagation to meson meson: fix dependencies for modinfo configure: Drop obsolete check for the alloc_size attribute target/i386: Added consistency checks for EFER target/i386: Added consistency checks for CR4 target/i386: Added V_INTR_PRIO check to virtual interrupts qemu-config: restore "machine" in qmp_query_command_line_options() usb: fix usb-host dependency check chardev-spice: add missing module_obj directive vl: Parse legacy default_machine_opts qemu-config: fix memory leak on ferror() qemu-config: never call the callback after an error, fix leak Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-22qemu-config: restore "machine" in qmp_query_command_line_options()Stefan Hajnoczi
Commit d8fb7d0969d5c32b3d1b9e20b63ec6c0abe80be4 ("vl: switch -M parsing to keyval") stopped adding the "machine" QemuOptsList. This causes "machine" options to not show up in QMP query-command-line-options output. For example, libvirt cannot detect that kernel_irqchip support is available. Adjust the "machine" opts enumeration in qmp_query_command_line_options() so that options are properly reported. Fixes: d8fb7d0969d5 ("vl: switch -M parsing to keyval") Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20210721151055.424580-1-stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-21qemu/atomic: Add aligned_{int64,uint64}_t typesRichard Henderson
Use it to avoid some clang-12 -Watomic-alignment errors, forcing some structures to be aligned and as a pointer when we have ensured that the address is aligned. Tested-by: Cole Robinson <crobinso@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-07-21iothread: add aio-max-batch parameterStefano Garzarella
The `aio-max-batch` parameter will be propagated to AIO engines and it will be used to control the maximum number of queued requests. When there are in queue a number of requests equal to `aio-max-batch`, the engine invokes the system call to forward the requests to the kernel. This parameter allows us to control the maximum batch size to reduce the latency that requests might accumulate while queued in the AIO engine queue. If `aio-max-batch` is equal to 0 (default value), the AIO engine will use its default maximum batch size value. Signed-off-by: Stefano Garzarella <sgarzare@redhat.com> Message-id: 20210721094211.69853-3-sgarzare@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2021-07-20qemu-config: fix memory leak on ferror()Paolo Bonzini
The leak is basically impossible to reach, since the only common way to get ferror(fp) is by passing a directory to -readconfig. In that case, the error occurs before qdict is set to anything non-NULL. However, it's theoretically possible to get there after an EIO. Cc: armbru@redhat.com Reported-by: Peter Maydell <peter.maydell@linaro.org> Fixes: f7544edcd3 ("qemu-config: add error propagation to qemu_config_parse", 2021-03-06) Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-20qemu-config: never call the callback after an error, fix leakPaolo Bonzini
Ensure that the callback to qemu_config_foreach is never called upon an error, by moving the invocation before the "out" label. Cc: armbru@redhat.com Fixes: 3770141139 ("qemu-config: parse configuration files to a QDict", 2021-06-04) Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-11Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into ↵Peter Maydell
staging * More SVM fixes (Lara) * Module annotation database (Gerd) * Memory leak fixes (myself) * Build fixes (myself) * --with-devices-* support (Alex) # gpg: Signature made Fri 09 Jul 2021 17:23:52 BST # 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 * remotes/bonzini-gitlab/tags/for-upstream: (48 commits) meson: Use input/output for entitlements target configure: allow the selection of alternate config in the build configs: rename default-configs to configs and reorganise hw/arm: move CONFIG_V7M out of default-devices hw/arm: add dependency on OR_IRQ for XLNX_VERSAL meson: Introduce target-specific Kconfig meson: switch function tests from compilation to linking vl: fix leak of qdict_crumple return value target/i386: fix exceptions for MOV to DR target/i386: Added DR6 and DR7 consistency checks target/i386: Added MSRPM and IOPM size check monitor/tcg: move tcg hmp commands to accel/tcg, register them dynamically usb: build usb-host as module monitor/usb: register 'info usbhost' dynamically usb: drop usb_host_dev_is_scsi_storage hook monitor: allow register hmp commands accel: build tcg modular accel: add tcg module annotations accel: build qtest modular accel: add qtest module annotations ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-11Merge remote-tracking branch ↵Peter Maydell
'remotes/vivier2/tags/trivial-branch-for-6.1-pull-request' into staging Trivial patches pull request 20210709 # gpg: Signature made Fri 09 Jul 2021 21:26:52 BST # gpg: using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C # gpg: issuer "laurent@vivier.eu" # gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full] # gpg: aka "Laurent Vivier <laurent@vivier.eu>" [full] # gpg: aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full] # Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F 5173 F30C 38BD 3F2F BE3C * remotes/vivier2/tags/trivial-branch-for-6.1-pull-request: util/guest-random: Fix size arg to tail memcpy migration: fix typo in mig_throttle_guest_down comment target/xtensa/xtensa-semi: Fix compilation problem on Haiku hw/virtio: Document *_should_notify() are called within rcu_read_lock() misc: Remove redundant new line in perror() virtiofsd: Add missing newline in error message misc: Fix "havn't" typo memory: Display MemoryRegion name in read/write ops trace events qemu-option: Drop dead assertion Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-10Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell
Block layer patches - Make blockdev-reopen stable - Remove deprecated qemu-img backing file without format - rbd: Convert to coroutines and add write zeroes support - rbd: Updated MAINTAINERS - export/fuse: Allow other users access to the export - vhost-user: Fix backends without multiqueue support - Fix drive-backup transaction endless drained section # gpg: Signature made Fri 09 Jul 2021 13:49:22 BST # 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/kevin/tags/for-upstream: (28 commits) block: Make blockdev-reopen stable API iotests: Test reopening multiple devices at the same time block: Support multiple reopening with x-blockdev-reopen block: Acquire AioContexts during bdrv_reopen_multiple() block: Add bdrv_reopen_queue_free() qcow2: Fix dangling pointer after reopen for 'file' qemu-img: Improve error for rebase without backing format qemu-img: Require -F with -b backing image qcow2: Prohibit backing file changes in 'qemu-img amend' blockdev: fix drive-backup transaction endless drained section vhost-user: Fix backends without multiqueue support MAINTAINERS: add block/rbd.c reviewer block/rbd: fix type of task->complete iotests/fuse-allow-other: Test allow-other iotests/308: Test +w on read-only FUSE exports export/fuse: Let permissions be adjustable export/fuse: Give SET_ATTR_SIZE its own branch export/fuse: Add allow-other option export/fuse: Pass default_permissions for mount util/uri: do not check argument of uri_free() ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09Merge remote-tracking branch ↵Peter Maydell
'remotes/ehabkost-gl/tags/machine-next-pull-request' into staging Machine queue, 2021-07-07 Deprecation: * Deprecate pmem=on with non-DAX capable backend file (Igor Mammedov) Feature: * virtio-mem: vfio support (David Hildenbrand) Cleanup: * vmbus: Don't make QOM property registration conditional (Eduardo Habkost) # gpg: Signature made Thu 08 Jul 2021 20:55:04 BST # gpg: using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6 # gpg: issuer "ehabkost@redhat.com" # gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full] # Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF D1AA 2807 936F 984D C5A6 * remotes/ehabkost-gl/tags/machine-next-pull-request: vfio: Disable only uncoordinated discards for VFIO_TYPE1 iommus virtio-mem: Require only coordinated discards softmmu/physmem: Extend ram_block_discard_(require|disable) by two discard types softmmu/physmem: Don't use atomic operations in ram_block_discard_(disable|require) vfio: Support for RamDiscardManager in the vIOMMU case vfio: Sanity check maximum number of DMA mappings with RamDiscardManager vfio: Query and store the maximum number of possible DMA mappings vfio: Support for RamDiscardManager in the !vIOMMU case virtio-mem: Implement RamDiscardManager interface virtio-mem: Don't report errors when ram_block_discard_range() fails virtio-mem: Factor out traversing unplugged ranges memory: Helpers to copy/free a MemoryRegionSection memory: Introduce RamDiscardManager for RAM memory regions Deprecate pmem=on with non-DAX capable backend file vmbus: Don't make QOM property registration conditional Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09util/guest-random: Fix size arg to tail memcpyMark Nelson
We know that in the body of this if statement i is less than len, so we really should be copying len - i bytes not i - len bytes. Fix this typo. Fixes: 8d8404f1564 ("util: Add qemu_guest_getrandom and associated routines") Signed-off-by: Mark Nelson <mdnelson8@gmail.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20210709120600.11080-1-mdnelson8@gmail.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-09qemu-option: Drop dead assertionMarkus Armbruster
Commit c6ecec43b2 "qemu-option: Check return value instead of @err where convenient" simplified opts = qemu_opts_create(list, qdict_get_try_str(qdict, "id"), 1, &local_err); if (local_err) { error_propagate(errp, local_err); return NULL; } to opts = qemu_opts_create(list, qdict_get_try_str(qdict, "id"), 1, errp); if (!opts) { return NULL; } but neglected to delete assert(opts != NULL); Do that now. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Message-Id: <20210610085026.436081-1-armbru@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-07-09modules: check arch on qom lookupGerd Hoffmann
With target-specific modules we can have multiple modules implementing the same object. Therefore we have to check the target arch on lookup to find the correct module. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Jose R. Ziviani <jziviani@suse.de> Message-Id: <20210624103836.2382472-20-kraxel@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09modules: check arch and block load on mismatchGerd Hoffmann
Add module_allow_arch() to set the target architecture. In case a module is limited to some arch verify arches match and ignore the module if not. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Jose R. Ziviani <jziviani@suse.de> Message-Id: <20210624103836.2382472-19-kraxel@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09modules: add tracepointsGerd Hoffmann
One for module load and one for qom type lookup. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Jose R. Ziviani <jziviani@suse.de> Message-Id: <20210624103836.2382472-18-kraxel@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09modules: use modinfo for qemu opts loadGerd Hoffmann
Use module database to figure which module adds given QemuOpts group. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Jose R. Ziviani <jziviani@suse.de> Message-Id: <20210624103836.2382472-17-kraxel@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09modules: use modinfo for qom loadGerd Hoffmann
Use module database to figure which module implements a given QOM type. Drop hard-coded object list. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Jose R. Ziviani <jziviani@suse.de> Message-Id: <20210624103836.2382472-16-kraxel@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09modules: use modinfo for dependenciesGerd Hoffmann
Use module database for module dependencies. Drop hard-coded dependency list. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Jose R. Ziviani <jziviani@suse.de> Message-Id: <20210624103836.2382472-15-kraxel@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09modules: generate modinfo.cGerd Hoffmann
Add script to generate C source with a small database containing the module meta-data. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Jose R. Ziviani <jziviani@suse.de> Message-Id: <20210624103836.2382472-4-kraxel@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09meson: fix missing preprocessor symbolsPaolo Bonzini
While most libraries do not need a CONFIG_* symbol because the "when:" clauses are enough, some do. Add them back or stop using them if possible. In the case of libpmem, the statement to add the CONFIG_* symbol was still in configure, but could not be triggered because it checked for "no" instead of "disabled" (and it would be wrong anyway since the test for the library has not been done yet). Reported-by: Li Zhijian <lizhijian@cn.fujitsu.com> Fixes: 587d59d6cc ("configure, meson: convert virgl detection to meson", 2021-07-06) Fixes: 83ef16821a ("configure, meson: convert libdaxctl detection to meson", 2021-07-06) Fixes: e36e8c70f6 ("configure, meson: convert libpmem detection to meson", 2021-07-06) Fixes: 53c22b68e3 ("configure, meson: convert liburing detection to meson", 2021-07-06) Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09util/uri: do not check argument of uri_free()Heinrich Schuchardt
uri_free() checks if its argument is NULL in uri_clean() and g_free(). There is no need to check the argument before the call. Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de> Message-Id: <20210629063602.4239-1-xypron.glpk@gmx.de> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-07-08Merge remote-tracking branch ↵Peter Maydell
'remotes/stefanha-gitlab/tags/block-pull-request' into staging Pull request # gpg: Signature made Thu 08 Jul 2021 14:11:37 BST # gpg: using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full] # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" [full] # Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8 * remotes/stefanha-gitlab/tags/block-pull-request: block/io: Merge discard request alignments block: Add backend_defaults property block/file-posix: Optimize for macOS util/async: print leaked BH name when AioContext finalizes util/async: add a human-readable name to BHs for debugging Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-06Deprecate pmem=on with non-DAX capable backend fileIgor Mammedov
It is not safe to pretend that emulated NVDIMM supports persistence while backend actually failed to enable it and used non-persistent mapping as fall back. Instead of falling-back, QEMU should be more strict and error out with clear message that it's not supported. So if user asks for persistence (pmem=on), they should store backing file on NVDIMM. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20210111203332.740815-1-imammedo@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2021-07-06qemu-option: remove now-dead codePaolo Bonzini
-M was the sole user of qemu_opts_set and qemu_opts_set_defaults, remove them and the arguments that they used. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-06keyval: introduce keyval_parse_intoPaolo Bonzini
Allow parsing multiple keyval sequences into the same dictionary. This will be used to simplify the parsing of the -M command line option, which is currently a .merge_lists = true QemuOpts group. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-06keyval: introduce keyval_mergePaolo Bonzini
This patch introduces a function that merges two keyval-produced (or keyval-like) QDicts. It can be used to emulate the behavior of .merge_lists = true QemuOpts groups, merging -readconfig sections and command-line options in a single QDict, and also to implement -set. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-06configure: convert compiler tests to meson, part 1Paolo Bonzini
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-06meson: store dependency('threads') in a variablePaolo Bonzini
It can be useful for has_function checks. Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-05util/async: print leaked BH name when AioContext finalizesStefan Hajnoczi
BHs must be deleted before the AioContext is finalized. If not, it's a bug and probably indicates that some part of the program still expects the BH to run in the future. That can lead to memory leaks, inconsistent state, or just hangs. Unfortunately the assert(flags & BH_DELETED) call in aio_ctx_finalize() is difficult to debug because the assertion failure contains no information about the BH! Use the QEMUBH name field added in the previous patch to show a useful error when a leaked BH is detected. Suggested-by: Eric Ernst <eric.g.ernst@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Message-Id: <20210414200247.917496-3-stefanha@redhat.com>
2021-07-05util/async: add a human-readable name to BHs for debuggingStefan Hajnoczi
It can be difficult to debug issues with BHs in production environments. Although BHs can usually be identified by looking up their ->cb() function pointer, this requires debug information for the program. It is also not possible to print human-readable diagnostics about BHs because they have no identifier. This patch adds a name to each BH. The name is not unique per instance but differentiates between cb() functions, which is usually enough. It's done by changing aio_bh_new() and friends to macros that stringify cb. The next patch will use the name field when reporting leaked BHs. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20210414200247.917496-2-stefanha@redhat.com>
2021-06-25co-shared-resource: protect with a mutexEmanuele Giuseppe Esposito
co-shared-resource is currently not thread-safe, as also reported in co-shared-resource.h. Add a QemuMutex because co_try_get_from_shres can also be invoked from non-coroutine context. Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com> Message-Id: <20210614081130.22134-6-eesposit@redhat.com> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
2021-06-22Merge remote-tracking branch 'remotes/rth-gitlab/tags/pull-tcg-20210619-2' ↵Peter Maydell
into staging TCI cleanup and re-encoding Fixes for #367 and #390. Move TCGCond to tcg/tcg-cond.h. Fix for win32 qemu_try_memalign. # gpg: Signature made Sun 20 Jun 2021 05:23:53 BST # 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 * remotes/rth-gitlab/tags/pull-tcg-20210619-2: (33 commits) util/oslib-win32: Fix fatal assertion in qemu_try_memalign tcg: expose TCGCond manipulation routines tcg: Restart when exhausting the stack frame tcg: Allocate sufficient storage in temp_allocate_frame tcg/sparc: Fix temp_allocate_frame vs sparc stack bias accel/tcg: Probe the proper permissions for atomic ops tests/tcg: Increase timeout for TCI tcg/tci: Use {set,clear}_helper_retaddr tcg/tci: Remove the qemu_ld/st_type macros Revert "tcg/tci: Use exec/cpu_ldst.h interfaces" tcg/tci: Split out tci_qemu_ld, tci_qemu_st tcg/tci: Implement add2, sub2 tcg/tci: Implement mulu2, muls2 tcg/tci: Implement clz, ctz, ctpop tcg/tci: Implement extract, sextract tcg/tci: Implement andc, orc, eqv, nand, nor tcg/tci: Implement movcond tcg/tci: Implement goto_ptr tcg/tci: Change encoding to uint32_t units tcg/tci: Remove tci_write_reg ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-06-19util/oslib-win32: Fix fatal assertion in qemu_try_memalignStefan Weil
The function is called with alignment == 0 which caused an assertion. Use the code from oslib-posix.c to fix that regression. Fixes: ed6f53f9ca9 Signed-off-by: Stefan Weil <sw@weilnetz.de> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20210611105846.347954-1-sw@weilnetz.de> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2021-06-18qemu-sockets: introduce socket_address_parse_named_fd()Vladimir Sementsov-Ogievskiy
Add function that transforms named fd inside SocketAddress structure into number representation. This way it may be then used in a context where current monitor is not available. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Message-Id: <20210610100802.5888-6-vsementsov@virtuozzo.com> Reviewed-by: Eric Blake <eblake@redhat.com> [eblake: comment tweak] Signed-off-by: Eric Blake <eblake@redhat.com>
2021-06-18async: the main AioContext is only "current" if under the BQLPaolo Bonzini
If we want to wake up a coroutine from a worker thread, aio_co_wake() currently does not work. In that scenario, aio_co_wake() calls aio_co_enter(), but there is no current AioContext and therefore qemu_get_current_aio_context() returns the main thread. aio_co_wake() then attempts to call aio_context_acquire() instead of going through aio_co_schedule(). The default case of qemu_get_current_aio_context() was added to cover synchronous I/O started from the vCPU thread, but the main and vCPU threads are quite different. The main thread is an I/O thread itself, only running a more complicated event loop; the vCPU thread instead is essentially a worker thread that occasionally calls qemu_mutex_lock_iothread(). It is only in those critical sections that it acts as if it were the home thread of the main AioContext. Therefore, this patch detaches qemu_get_current_aio_context() from iothreads, which is a useless complication. The AioContext pointer is stored directly in the thread-local variable, including for the main loop. Worker threads (including vCPU threads) optionally behave as temporary home threads if they have taken the big QEMU lock, but if that is not the case they will always schedule coroutines on remote threads via aio_co_schedule(). With this change, the stub qemu_mutex_iothread_locked() must be changed from true to false. The previous value of true was needed because the main thread did not have an AioContext in the thread-local variable, but now it does have one. Reported-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20210609122234.544153-1-pbonzini@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Tested-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> [eblake: tweak commit message per Vladimir's review] Signed-off-by: Eric Blake <eblake@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-28 08:51:26 +0000