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2025-03-14docs: add QAPI namespace "QMP" to qemu-qmp-refJohn Snow1-1/+1
This also creates the qapi-qmp-index.html index and cross-reference target. Signed-off-by: John Snow <jsnow@redhat.com> Message-ID: <20250313044312.189276-10-jsnow@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2025-03-14qapi/block-core: Improve x-blockdev-change documentationMarkus Armbruster1-16/+12
The description of feature @unstable is three paragraphs. The second and third became part of the description by accident in commit 9fb49daabfb (qapi: Mark unstable QMP parts with feature 'unstable'). The second paragraph describes a defect in terms of the implementation. Fine, but doesn't belong into user-facing documentation. Turn it into a TODO section. Rewrite everything else for clarity and completeness. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20250311131715.1296101-1-armbru@redhat.com> Acked-by: Alberto Garcia <berto@igalia.com>
2025-03-11docs: enable qapidoc transmogrifier for QEMU QMP ReferenceJohn Snow1-0/+2
We are not enabling the transmogrifier for QSD or QGA yet because we don't (yet) have a way to create separate indices, and all of the definitions will bleed together, which isn't so nice. For now, QMP is better than nothing at all! Signed-off-by: John Snow <jsnow@redhat.com> Message-ID: <20250311034303.75779-62-jsnow@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2025-03-07Merge tag 'pull-nbd-2025-03-05' of https://repo.or.cz/qemu/ericb into stagingStefan Hajnoczi1-41/+31
NBD patches for 2025-03-05 - Several iotest fixes - Refactor QMP for NbdServerOptions for less repetition - Avoid a hang in 'qemu-nbd --fork' when simple trace backend is enabled # -----BEGIN PGP SIGNATURE----- # # iQEzBAABCAAdFiEEccLMIrHEYCkn0vOqp6FrSiUnQ2oFAmfI2I0ACgkQp6FrSiUn # Q2pMWQf/ZNnuLC5O5W4Yiyki7mYjN3Izve5+xgM/gNv9uTrHmYXogYzswpYz1USo # aU1i/EFLJ5K7ImefQYBvySox+opwFs63xPscI/liwrKu54csp1rYGNg3hjKYaZCc # ukR5tB4bRQ2/JXNo0JueiocMZLyC5fZRUt9Z423D3ReHCtEJof0v1rTL2r7mzGJg # EdaRSGr0s592rFjWLwwvWWun5f0mEAFXM2YvZRRLE7M+x2XJeAR4F400GfvSMDNo # chGX41QKhmCYTMI5Shc/mX+5hMllEt/TyYBJUUk0cslJriVnNDV5VTFf184BmH5s # tqiUtzJubxt8/Wtpg6OV9RPAzVmr1g== # =NO+l # -----END PGP SIGNATURE----- # gpg: Signature made Thu 06 Mar 2025 07:04:45 HKT # gpg: using RSA key 71C2CC22B1C4602927D2F3AAA7A16B4A2527436A # gpg: Good signature from "Eric Blake <eblake@redhat.com>" [full] # gpg: aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>" [full] # gpg: aka "[jpeg image of size 6874]" [full] # Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2 F3AA A7A1 6B4A 2527 436A * tag 'pull-nbd-2025-03-05' of https://repo.or.cz/qemu/ericb: nbd: Defer trace init until after daemonization qapi: merge common parts of NbdServerOptions and nbd-server-start data iotests: Stop NBD server in test 162 before starting the next one iotest: Unbreak 302 with python 3.13 Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-03-05Merge tag 'hw-misc-20250305' of https://github.com/philmd/qemu into stagingStefan Hajnoczi1-0/+14
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) # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEE+qvnXhKRciHc/Wuy4+MsLN6twN4FAmfHpagACgkQ4+MsLN6t # wN4dTg//Z2neoENdnZglRp6q66LLxSTHJnHUMNHe2Bp+KKfhce+//j+CFYgOnJjV # P5eExzvHvtYFL6lNXOR7MTM/i/4pixcLYh8anyrnUWkEiufGXI4/30QePbwAAdkZ # kQ1CpLI43ZdnMLTh18JswLo/JMkl/jJGvCGNjhtQVnobqam+ATgAbjmcnwA8esJS # cCQVFzno9TNvsCnUtMe3IdOfIs9K3atCARbXpA3i3wd52P+NHvGO1jU0QPFBm2Lr # 4kcFLI1Sg2vYWD3FujDPeCcfI7kcRDIjHS6vVplK1VlCjjdaQmxx6XKO72PnZZOG # 7sra8xJpW8mZS2jfN2AxKMVlNndZMYzAJoS2UBMp1YX8KBEzlcmI2uSjGas6bcmQ # XIaP7/mggx7yBU3nspUl8rqY/3Z3wVjwepf1l8KOn9Z13wo+APv4aj6W+zkK96A5 # NGq6EpoKquINGLBBMkZAdfBOKk97NhwHh1Op04VgJNnPESpLnb5hENtZW1ksg92r # tijWdDWnC/JtWMU2dAnmT/9Vaxk4fukGqqncXqQJzGBw0OylzWh5b2Zer02WFyxz # oplISEwU3uFcg0OLa9aUHgs7lVWBUbEW3pSk1CtKuqgPtwxm/Gr2KbAVgAbFiyzr # 6YPQsfFP5z6CjreOWMELPWmsYV+jtTj/KoIek2QlYt7Ex6uiA6c= # =TcY9 # -----END PGP SIGNATURE----- # gpg: Signature made Wed 05 Mar 2025 09:15:20 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 '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>
2025-03-05Merge tag 'firmware-20250304-pull-request' of https://gitlab.com/kraxel/qemu ↵Stefan Hajnoczi3-0/+66
into staging - add uefi variable store support # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCgAdFiEEoDKM/7k6F6eZAf59TLbY7tPocTgFAmfG9m4ACgkQTLbY7tPo # cTgk8BAAn60ezSx2iet/JarkMugacOJ6C2UbVQho/Q3WCyrQ7K+F0NByczcfKLA6 # OZX84p93qxiK8KJ9tva41eOIYViyfsKf+wGUInNCbXbyGy7RZV3SjE5Yuk9BE9Ta # 8f/5dDGyCELQWliy4atLUWl2dL0rQ76twLZewYo9n2A+LijIzjuP+kVJeccK8U7A # qStio3rGZ0vul2OYhE3+veSXd2m2oU32Tce31MUoj9yCbTE1RZSKMXbwbUU/nul9 # RN3X0q4rvXKwbKMUdC+YI+oIzY/1nzrmy5zwwbJsAszsSKjAc2LZeoDqKdbOIynL # B01dorpg5pVxQUqHz1t+YTfGyuZaYDM6WsaGoU5/9QLW7ZbI857EULq7ptE3DVAS # YjHiBYqiiYYrCatV4UT1XjkRjX7W8lTdK2M+8Vh1E5b1pGpfPwuKE4YRGwMMK0Ac # 5LD9HMxnXIDOT9A6+tGc6GYLfT7YToFA3pHn6WdLlGSowB7sYVZy0/xGe3ABjvzt # WOl1WDWtHCpYIiROpEl+KkbRilwvbLF/IW7x0Ovfsjyh5ucBFu6ojxgRBcOee4Na # oeBz5GfpeIoelhWl1aSYIUrFCvN2Q/9EafHRsfTzPoKlD3t/7oLNYtMYloiQpsks # IPpD5OMMmWGaD2G76Nw24nS4+zUf4Gagg6+IAlYt6zjqnmxFWxY= # =HnUt # -----END PGP SIGNATURE----- # gpg: Signature made Tue 04 Mar 2025 20:47:42 HKT # gpg: using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full] # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [full] # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full] # Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138 * tag 'firmware-20250304-pull-request' of https://gitlab.com/kraxel/qemu: (24 commits) docs: add uefi variable service documentation hw/uefi: add MAINTAINERS entry hw/uefi-vars-sysbus: allow for pc and q35 hw/uefi-vars-sysbus: allow for arm virt hw/uefi-vars-sysbus: add x64 variant hw/uefi-vars-sysbus: qemu platform bus support hw/uefi: add uefi-vars-sysbus device hw/uefi: add to meson hw/uefi: add UEFI_VARS to Kconfig hw/uefi: add trace-events hw/uefi: add var-service-json.c + qapi for NV vars. hw/uefi: add var-service-siglist.c hw/uefi: add var-service-pkcs7-stub.c hw/uefi: add var-service-pkcs7.c hw/uefi: add var-service-core.c hw/uefi: add var-service-policy.c hw/uefi: add var-service-auth.c hw/uefi: add var-service-vars.c hw/uefi: add var-service-utils.c hw/uefi: add var-service-guid.c ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-03-04qapi: merge common parts of NbdServerOptions and nbd-server-start dataVladimir Sementsov-Ogievskiy1-41/+31
Instead of comment "Keep this type consistent with the nbd-server-start arguments", we can simply merge these things. Note that each field of new base already has "since" tag, equal in both original copies. So "since" information is saved. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Message-ID: <20250219191914.440451-1-vsementsov@yandex-team.ru> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Eric Blake <eblake@redhat.com>
2025-03-04hw/vmapple/virtio-blk: Add support for apple virtio-blkAlexander Graf1-0/+14
Apple has its own virtio-blk PCI device ID where it deviates from the official virtio-pci spec slightly: It puts a new "apple type" field at a static offset in config space and introduces a new barrier command. This patch first creates a mechanism for virtio-blk downstream classes to handle unknown commands. It then creates such a downstream class and a new vmapple-virtio-blk-pci class which support the additional apple type config identifier as well as the barrier command. The 'aux' or 'root' device type are selected using the 'variant' property. 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> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Message-ID: <20241223221645.29911-13-phil@philjordan.eu> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2025-03-04hw/uefi: add var-service-json.c + qapi for NV vars.Gerd Hoffmann3-0/+66
Define qapi schema for the uefi variable store state. Use it and the generated visitor helper functions to store persistent (EFI_VARIABLE_NON_VOLATILE) variables in JSON format on disk. Acked-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-ID: <20250225163031.1409078-15-kraxel@redhat.com> [ incremental fix squashed in ] Message-ID: <pji24p6oag7cn2rovus7rquo7q2c6tokuquobfro2sqorky7vu@tk7cxud6jw7f>
2025-02-24qapi/char.json: minor doc rewording for `hub` deviceRoman Penyaev1-1/+1
Refine documentation for the hub device, specify the maximum. Signed-off-by: Roman Penyaev <r.peniaev@gmail.com> Cc: Marc-André Lureau <marcandre.lureau@redhat.com> Cc: Markus Armbruster <armbru@redhat.com> Cc: qemu-devel@nongnu.org Message-ID: <20250219090607.559887-1-r.peniaev@gmail.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2025-02-22Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu ↵Stefan Hajnoczi1-0/+40
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>
2025-02-21net: vhost-user: add QAPI events to report connection stateLaurent Vivier1-0/+40
The netdev reports NETDEV_VHOST_USER_CONNECTED event when the chardev is connected, and NETDEV_VHOST_USER_DISCONNECTED when it is disconnected. The NETDEV_VHOST_USER_CONNECTED event includes the chardev id. This allows a system manager like libvirt to detect when the server fails. For instance with passt: { 'execute': 'qmp_capabilities' } { "return": { } } [killing passt here] { "timestamp": { "seconds": 1739538634, "microseconds": 920450 }, "event": "NETDEV_VHOST_USER_DISCONNECTED", "data": { "netdev-id": "netdev0" } } [automatic reconnection with reconnect-ms] { "timestamp": { "seconds": 1739538638, "microseconds": 354181 }, "event": "NETDEV_VHOST_USER_CONNECTED", "data": { "netdev-id": "netdev0", "chardev-id": "chr0" } } Tested-by: Stefano Brivio <sbrivio@redhat.com> Signed-off-by: Laurent Vivier <lvivier@redhat.com> Message-Id: <20250217092550.1172055-1-lvivier@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2025-02-16Merge tag 'hw-misc-20250216' of https://github.com/philmd/qemu into stagingStefan Hajnoczi1-0/+14
Misc HW patches - Use qemu_hexdump_line() in TPM backend (Philippe) - Remove magic number in APIC (Phil) - Disable thread-level cache topology (Zhao) - Xen QOM style cleanups (Bernhard) - Introduce TYPE_DYNAMIC_SYS_BUS_DEVICE (Philippe) - Invert logic of machine no_sdcard flag (Philippe) - Housekeeping in MicroBlaze functional tests (Philippe) - Prevent out-of-bound access in SMC91C111 RX path (Peter) - Declare more fields / arguments as const (Philippe) - Introduce EndianMode QAPI enum (Philippe) - Make various Xilinx devices endianness configurable (Philippe) - Mark some devices memory regions as little-endian (Philippe) - Allow execution RX gdbsim machine without BIOS/kernel (Keith) # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEE+qvnXhKRciHc/Wuy4+MsLN6twN4FAmeyUY8ACgkQ4+MsLN6t # wN7OQQ/+PwMfwJUjmkUYgS2E4RMEQFq3LVeY7hRcsga/F0EAQV5ksn9f8nqkWu7b # vkXIxcatWb1dgpkqIYRPG/PuAELIub9ZFpc57TNVvFZiGzqtOg1rXSAinDEtb8oL # fMB/HnLGLScOaIeWa7d7t58oOnpO6yAYZi/BYiByKnToHO4nkfu3yNIB290Tjia0 # npbundH3Gmk8B+LmcFpqXqj0KyDZNxHw8WMh8nba+mhp0gp0z5hlOKoaGgSzNW4f # Az1sjeKCVVcMf+C01tfO5V8NHQdqFQovqcua+wMoWd9we3JuIHFkhTpZHxWUvW/l # e8ovqXBfFv++TqjNb1tZJMwYqM2mBH7txqOoZmWXcnihISURIa4GkwtNOLMx0HGk # omxZYLnsVbrHivdelzNB1ipVehhqD37/lW1Tq8b+bMfCGFF2coXWyx10pyXZTB+P # 6Xyd9QWcCTQPXMgIHJ28DU8s+bIHERdPHQVtaaBSahggFm/suR+gBanCxCiGfbA/ # 8/AFolptCaxRh4OoXOFft+SOcjsURCWHSDAVK64rp7yRc4D/nEnXb79d4sthDRuG # DKvaO4D03QYIo79Bas+u687lEwQ7fiecFtt6iI0fHe5MiJG0ZymAkwmWe7UnnUZF # VvqkjRjapjphASxPKVnXAzLXBL3rCL27VeTlaXO5Qk34Jf9d1J4= # =URn3 # -----END PGP SIGNATURE----- # gpg: Signature made Sun 16 Feb 2025 15:58:55 EST # 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 'hw-misc-20250216' of https://github.com/philmd/qemu: (39 commits) hw/rx: Allow execution without either bios or kernel hw/pci-host: Mark versatile regions as little-endian hw/mips: Mark Loonson3 Virt machine devices as little-endian hw/mips: Mark Boston machine devices as little-endian hw/arm: Mark Allwinner Technology devices as little-endian hw/ssi/xilinx_spi: Make device endianness configurable hw/char/xilinx_uartlite: Make device endianness configurable hw/timer/xilinx_timer: Make device endianness configurable hw/net/xilinx_ethlite: Make device endianness configurable hw/intc/xilinx_intc: Make device endianness configurable hw/qdev-properties-system: Introduce EndianMode QAPI enum hw: Make class data 'const' hw: Declare various const data as 'const' tests/functional: Remove sleep() kludges from microblaze tests tests/functional: Allow microblaze tests to take a machine name argument tests/functional: Explicit endianness of microblaze assets hw/net/smc91c111: Ignore attempt to pop from empty RX fifo hw/riscv/opentitan: Include missing 'exec/address-spaces.h' header hw/boards: Ensure machine setting auto_create_sdcard expose a SD Bus hw/riscv: Remove all invalid uses of auto_create_sdcard=true ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-02-16hw/qdev-properties-system: Introduce EndianMode QAPI enumPhilippe Mathieu-Daudé1-0/+14
Introduce the EndianMode type and the DEFINE_PROP_ENDIAN() macros. Endianness can be BIG, LITTLE or unspecified (default). Reviewed-by: Thomas Huth <thuth@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20250213122217.62654-2-philmd@linaro.org>
2025-02-14migration: Update migrate_cancel documentationFabiano Rosas1-1/+3
Update the migrate_cancel command documentation with a few words about postcopy and the expected state of the machine after migration. Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Message-ID: <20250213175927.19642-10-farosas@suse.de> Signed-off-by: Fabiano Rosas <farosas@suse.de>
2025-02-11nbd/server: Allow users to adjust handshake limit in QMPEric Blake1-0/+10
Although defaulting the handshake limit to 10 seconds was a nice QoI change to weed out intentionally slow clients, it can interfere with integration testing done with manual NBD_OPT commands over 'nbdsh --opt-mode'. Expose a QMP knob 'handshake-max-secs' to allow the user to alter the timeout away from the default. The parameter name here intentionally matches the spelling of the constant added in commit fb1c2aaa98, and not the command-line spelling added in the previous patch for qemu-nbd; that's because in QMP, longer names serve as good self-documentation, and unlike the command line, machines don't have problems generating longer spellings. Signed-off-by: Eric Blake <eblake@redhat.com> Message-ID: <20250203222722.650694-6-eblake@redhat.com> [eblake: s/max-secs/max-seconds/ in QMP] Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru>
2025-02-10Merge tag 'for-upstream' of https://repo.or.cz/qemu/kevin into stagingStefan Hajnoczi2-2/+52
Block layer patches - Managing inactive nodes (enables QSD migration with shared storage) - Fix swapped values for BLOCK_IO_ERROR 'device' and 'qom-path' - vpc: Read images exported from Azure correctly - scripts/qemu-gdb: Support coroutine dumps in coredumps - Minor cleanups # -----BEGIN PGP SIGNATURE----- # # iQJFBAABCAAvFiEE3D3rFZqa+V09dFb+fwmycsiPL9YFAmek34IRHGt3b2xmQHJl # ZGhhdC5jb20ACgkQfwmycsiPL9bDpxAAnTvwmdazAXG0g9GzqvrEB/+6rStjAsqE # 9MTWV4WxyN41d0RXxN8CYKb8CXSiTRyw6r3CSGNYEI2eShe9e934PriSkZm41HyX # n9Yh5YxqGZqitzvPtx62Ii/1KG+PcjQbfHuK1p4+rlKa0yQ2eGlio1JIIrZrCkBZ # ikZcQUrhIyD0XV8hTQ2+Ysa+ZN6itjnlTQIG3gS3m8f8WR7kyUXD8YFMQFJFyjVx # NrAIpLnc/ln9+5PZR9tje8U7XEn2KCgI5pgGaQnrd0h0G1H4ig8ogzYYnKTLhjU/ # AmQpS8np8Tyg6S1UZTiekEq0VuAhThEQc5b3sGbmHWH/R2ABMStyf18oCBAkPzZ7 # s6h+3XzTKKY2Q5Q3ZG/ANkUJjTNBhdj1fcaARvbSWsqsuk5CWX/I3jzvgihFtCSs # eGu+b/bLeW6P7hu4qPHBcgLHuB1Fc7Rd2t4BoIGM1wcO2CeC9DzUKOiIMZOEJIh0 # GGqCkEWDHgckDTakD4/vSqm0UDKt6FSlQC9ga/ILBY3IB5HpHoArY58selymy28i # X7MgAvbjdsmNuUuXDZZOiObcFt3j8jlmwPJpPyzXPQIiPX1RXeBPRhVAEeZCKn6Z # tfHr72SJdMeVOGXVTvOrJ2iW+4g03rPdmkDFCUhpOwo62RODq7ahvCIXsNf3nEFR # rSB3T1M/8EM= # =iQLP # -----END PGP SIGNATURE----- # gpg: Signature made Thu 06 Feb 2025 11:12:50 EST # 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 * tag 'for-upstream' of https://repo.or.cz/qemu/kevin: (25 commits) block: remove unused BLOCK_OP_TYPE_DATAPLANE iotests: Add (NBD-based) tests for inactive nodes iotests: Add qsd-migrate case iotests: Add filter_qtest() nbd/server: Support inactive nodes block/export: Add option to allow export of inactive nodes block: Drain nodes before inactivating them block/export: Don't ignore image activation error in blk_exp_add() block: Support inactive nodes in blk_insert_bs() block: Add blockdev-set-active QMP command block: Add option to create inactive nodes block: Fix crash on block_resize on inactive node block: Don't attach inactive child to active node migration/block-active: Remove global active flag block: Inactivate external snapshot overlays when necessary block: Allow inactivating already inactive nodes block: Add 'active' field to BlockDeviceInfo block-backend: Fix argument order when calling 'qapi_event_send_block_io_error()' scripts/qemu-gdb: Support coroutine dumps in coredumps scripts/qemu-gdb: Simplify fs_base fetching for coroutines ... Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2025-02-10qapi: change 'unsigned special_features' to 'uint64_t features'Daniel P. Berrangé7-21/+21
The "special_features" field / parameter holds the subset of schema features that are for internal code use. Specifically 'DEPRECATED' and 'UNSTABLE'. This special casing of internal features is going to be removed, so prepare for that by renaming to 'features'. Using a fixed size type is also best practice for bit fields. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Message-ID: <20250205123550.2754387-3-berrange@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2025-02-10qapi/ui: Fix documentation of upper bound value in InputMoveEventZhang Boyang1-1/+1
The upper bound of pointer position in InputMoveEvent should be 0x7fff, according to INPUT_EVENT_ABS_MAX. Signed-off-by: Zhang Boyang <zhangboyang.id@gmail.com> Message-ID: <20250116104433.12114-1-zhangboyang.id@gmail.com> Acked-by: Markus Armbruster <armbru@redhat.com> [Phrasing tweak squashed in] Signed-off-by: Markus Armbruster <armbru@redhat.com>
2025-02-10qapi: fix colon in Since tag sectionVictor Toso1-2/+2
As described in docs/devel/qapi-code-gen.rst line 998, there should be no space between "Since" and ":". Signed-off-by: Victor Toso <victortoso@redhat.com> Message-ID: <20241217091504.16416-1-victortoso@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2025-02-10qapi: Move and rename qapi/qmp/dispatch.h to qapi/qmp-registry.hDaniel P. Berrangé2-2/+2
The general expectation is that header files should follow the same file/path naming scheme as the corresponding source file. There are various historical exceptions to this practice in QEMU, with one of the most notable being the include/qapi/qmp/ directory. include/qapi/qmp/dispatch.h corresponds mostly to qapi/qmp-registry.c. Move and rename it to include/qapi/qmp-registry.h. Now just qerror.h is left in include/qapi/qmp/. Since it's deprecated & (slowly) getting eliminated anyway, it isn't worth moving. Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20241118151235.2665921-3-armbru@redhat.com>
2025-02-10qapi: Move include/qapi/qmp/ to include/qobject/Daniel P. Berrangé8-29/+29
The general expectation is that header files should follow the same file/path naming scheme as the corresponding source file. There are various historical exceptions to this practice in QEMU, with one of the most notable being the include/qapi/qmp/ directory. Most of the headers there correspond to source files in qobject/. This patch corrects most of that inconsistency by creating include/qobject/ and moving the headers for qobject/ there. This also fixes MAINTAINERS for include/qapi/qmp/dispatch.h: scripts/get_maintainer.pl now reports "QAPI" instead of "No maintainers found". Signed-off-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Zhao Liu <zhao1.liu@intel.com> Acked-by: Halil Pasic <pasic@linux.ibm.com> #s390x Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20241118151235.2665921-2-armbru@redhat.com> [Rebased]
2025-02-06block/export: Add option to allow export of inactive nodesKevin Wolf1-1/+9
Add an option in BlockExportOptions to allow creating an export on an inactive node without activating the node. This mode needs to be explicitly supported by the export type (so that it doesn't perform any operations that are forbidden for inactive nodes), so this patch alone doesn't allow this option to be successfully used yet. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-ID: <20250204211407.381505-13-kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-02-06block: Add blockdev-set-active QMP commandKevin Wolf1-0/+32
The system emulator tries to automatically activate and inactivate block nodes at the right point during migration. However, there are still cases where it's necessary that the user can do this manually. Images are only activated on the destination VM of a migration when the VM is actually resumed. If the VM was paused, this doesn't happen automatically. The user may want to perform some operation on a block device (e.g. taking a snapshot or starting a block job) without also resuming the VM yet. This is an example where a manual command is necessary. Another example is VM migration when the image files are opened by an external qemu-storage-daemon instance on each side. In this case, the process that needs to hand over the images isn't even part of the migration and can't know when the migration completes. Management tools need a way to explicitly inactivate images on the source and activate them on the destination. This adds a new blockdev-set-active QMP command that lets the user change the status of individual nodes (this is necessary in qemu-storage-daemon because it could be serving multiple VMs and only one of them migrates at a time). For convenience, operating on all devices (like QEMU does automatically during migration) is offered as an option, too, and can be used in the context of single VM. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-ID: <20250204211407.381505-9-kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-02-06block: Add option to create inactive nodesKevin Wolf1-0/+6
In QEMU, nodes are automatically created inactive while expecting an incoming migration (i.e. RUN_STATE_INMIGRATE). In qemu-storage-daemon, the notion of runstates doesn't exist. It also wouldn't necessarily make sense to introduce it because a single daemon can serve multiple VMs that can be in different states. Therefore, allow the user to explicitly open images as inactive with a new option. The default is as before: Nodes are usually active, except when created during RUN_STATE_INMIGRATE. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-ID: <20250204211407.381505-8-kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-02-06block: Add 'active' field to BlockDeviceInfoKevin Wolf1-1/+5
This allows querying from QMP (and also HMP) whether an image is currently active or inactive (in the sense of BDRV_O_INACTIVE). Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Fabiano Rosas <farosas@suse.de> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Message-ID: <20250204211407.381505-2-kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2025-02-03dbus: add -audio dbus nsamples optionMarc-André Lureau1-1/+21
Allow to set the number of audio samples per read/write to dbus. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2025-02-03chardev/char-hub: implement backend chardev aggregatorRoman Penyaev1-0/+27
This patch implements a new chardev backend `hub` device, which aggregates input from multiple backend devices and forwards it to a single frontend device. Additionally, `hub` device takes the output from the frontend device and sends it back to all the connected backend devices. This allows for seamless interaction between different backend devices and a single frontend interface. The idea of the change is trivial: keep list of backend devices (up to 4), init them on demand and forward data buffer back and forth. The following is QEMU command line example: -chardev pty,path=/tmp/pty,id=pty0 \ -chardev vc,id=vc0 \ -chardev hub,id=hub0,chardevs.0=pty0,chardevs.1=vc0 \ -device virtconsole,chardev=hub0 \ -vnc 0.0.0.0:0 Which creates 2 backend devices: text virtual console (`vc0`) and a pseudo TTY (`pty0`) connected to the single virtio hvc console with the backend aggregator (`hub0`) help. `vc0` renders text to an image, which can be shared over the VNC protocol. `pty0` is a pseudo TTY backend which provides biderectional communication to the virtio hvc console. 'chardevs.N' list syntax is used for the sake of compatibility with the representation of JSON lists in 'key=val' pairs format of the util/keyval.c, despite the fact that modern QAPI way of parsing, namely qobject_input_visitor_new_str(), is not used. Choice of keeping QAPI list syntax may help to smoothly switch to modern parsing in the future. Signed-off-by: Roman Penyaev <r.peniaev@gmail.com> Reviewed-by: "Marc-André Lureau" <marcandre.lureau@redhat.com> Cc: qemu-devel@nongnu.org Message-ID: <20250123085327.965501-3-r.peniaev@gmail.com>
2025-01-29migration: Always set DEVICE statePeter Xu1-2/+5
DEVICE state was introduced back in 2017: https://lore.kernel.org/qemu-devel/20171020090556.18631-1-dgilbert@redhat.com/ Quote from Dave's cover letter, when the pre-switchover phase was enabled, the state transition looks like this: The precopy flow is: active->pre-switchover->device->completed The postcopy flow is: active->pre-switchover->postcopy-active->completed To supplement above, when the cap is not enabled: The precopy flow is: active->completed The postcopy flow is: active->postcopy-active->completed It works for us, though we have some code just to special case these state transitions, so the DEVICE state currently is special only to precopy, and only conditionally. I had a quick discussion with Libvirt developers, it turns out that this may not be necessary. IOW, it seems okay we can have DEVICE state to be generic, so that we don't have over-complicated state machines. It not only helps align all the migration state machine, help cleanup the code path especially on pre-switchover handling (see the patch itself), another side benefit is we can unconditionally have a specific state to mark the switchover phase, which might be helpful for debugging too. This patch makes the DEVICE state to be present always, marking that source QEMU is switching over. Then the state machine will be always as simple as: active-> [pre-switchover->] -> device -> [postcopy-active->] -> complete After the change, no matter whether pre-switchover or postcopy is enabled or not, we always have DEVICE state showing the switchover phase. When pre-switchover enabled, we'll have an extra stage before that. When postcopy is enabled, we'll have an extra stage after that. A few qtests need touch up in QEMU tree for this change: - A few iotest outputs (194, 203, 234, 262, 280) - Teach libqos's migrate() on "device" state Cc: Jiri Denemark <jdenemar@redhat.com> Cc: Daniel P. Berrangé <berrange@redhat.com> Cc: Dr. David Alan Gilbert <dave@treblig.org> Signed-off-by: Peter Xu <peterx@redhat.com> Tested-by: Jiri Denemark <jdenemar@redhat.com> Reviewed-by: Juraj Marcin <jmarcin@redhat.com> Link: https://lore.kernel.org/r/20250114230746.3268797-15-peterx@redhat.com Signed-off-by: Fabiano Rosas <farosas@suse.de>
2025-01-29migration: cpr-transfer modeSteve Sistare1-2/+42
Add the cpr-transfer migration mode, which allows the user to transfer a guest to a new QEMU instance on the same host with minimal guest pause time, by preserving guest RAM in place, albeit with new virtual addresses in new QEMU, and by preserving device file descriptors. Pages that were locked in memory for DMA in old QEMU remain locked in new QEMU, because the descriptor of the device that locked them remains open. cpr-transfer preserves memory and devices descriptors by sending them to new QEMU over a unix domain socket using SCM_RIGHTS. Such CPR state cannot be sent over the normal migration channel, because devices and backends are created prior to reading the channel, so this mode sends CPR state over a second "cpr" migration channel. New QEMU reads the cpr channel prior to creating devices or backends. The user specifies the cpr channel in the channel arguments on the outgoing side, and in a second -incoming command-line parameter on the incoming side. The user must start old QEMU with the the '-machine aux-ram-share=on' option, which allows anonymous memory to be transferred in place to the new process by transferring a memory descriptor for each ram block. Memory-backend objects must have the share=on attribute, but memory-backend-epc is not supported. The user starts new QEMU on the same host as old QEMU, with command-line arguments to create the same machine, plus the -incoming option for the main migration channel, like normal live migration. In addition, the user adds a second -incoming option with channel type "cpr". This CPR channel must support file descriptor transfer with SCM_RIGHTS, i.e. it must be a UNIX domain socket. To initiate CPR, the user issues a migrate command to old QEMU, adding a second migration channel of type "cpr" in the channels argument. Old QEMU stops the VM, saves state to the migration channels, and enters the postmigrate state. New QEMU mmap's memory descriptors, and execution resumes. The implementation splits qmp_migrate into start and finish functions. Start sends CPR state to new QEMU, which responds by closing the CPR channel. Old QEMU detects the HUP then calls finish, which connects the main migration channel. In summary, the usage is: qemu-system-$arch -machine aux-ram-share=on ... start new QEMU with "-incoming <main-uri> -incoming <cpr-channel>" Issue commands to old QEMU: migrate_set_parameter mode cpr-transfer {"execute": "migrate", ... {"channel-type": "main"...}, {"channel-type": "cpr"...} ... } Signed-off-by: Steve Sistare <steven.sistare@oracle.com> Reviewed-by: Peter Xu <peterx@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Link: https://lore.kernel.org/r/1736967650-129648-17-git-send-email-steven.sistare@oracle.com Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-11-26qapi/qom: Change Since entry for AcpiGenericPortProperties to 9.2Jonathan Cameron1-1/+1
This feature was only applied during the 9.2 cycle, so reflect that rather than 9.1. Reported-by: Daniel P. Berrangé <berrange@redhat.com> Closes: https://lore.kernel.org/qemu-devel/ZyngEiwmYeZ-DvCy@redhat.com/ Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Message-Id: <20241107123446.902801-3-Jonathan.Cameron@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2024-11-26qapi: fix device-sync-config since-versionVladimir Sementsov-Ogievskiy1-1/+1
Actually it comes in 9.2, not 9.1. Fixes: 3f98408e2e ("qapi: introduce device-sync-config") Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Message-Id: <20241108071957.727286-1-vsementsov@yandex-team.ru> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-11-06Merge tag 'hw-misc-20241105' of https://github.com/philmd/qemu into stagingPeter Maydell1-1/+93
Misc HW patch queue - Deprecate a pair of untested microblaze big-endian machines (Philippe) - Arch-agnostic CPU topology checks at machine level (Zhao) - Cleanups on PPC E500 (Bernhard) - Various conversions to DEFINE_TYPES() macro (Bernhard) - Fix RISC-V _pext_u64() name clashing (Pierrick) # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCAAdFiEE+qvnXhKRciHc/Wuy4+MsLN6twN4FAmcqqycACgkQ4+MsLN6t # wN7TfhAAkAjpWxFGptNw28LPpnZY/NTGKyXQrIEHu3XnJsZ28c/KZeCAYUUC6/q7 # tAnBMb5GIn2VTyt+ElORseFtHStThoR8WMrcQSlGvCZei9lRNKCW0pVIEUgLZEtT # u8lChpaVAn8gXb885xlaCBBP4SuFHEpASSfWy0mYDIqZL3oRhr9AQ/KwzHFqenbK # Uva4BCWRVnYju6MhfA/pmVP011SUTdCu/fsBTIJT3Xn7Sp7fRNShIzt+1rbmPnR2 # hhRl5bMKUgDUjX5GxeP0LOj/XdX9svlqL42imNQT5FFUMIR6qbrwj4U841mt0uuI # FcthAoILvA2XUJoTESq0iXUoN4FQLtc01onY6k06EoZAnn8WRZRp2dNdu8fYmHMX # y3pcXBK6wEhBVZ2DcGVf1txmieUc4TZohOridU1Xfckp+XVl6J3LtTKJIE56Eh68 # S9OJW1Sz2Io/8FJFvKStX0bhV0nBUyUXmi5PjV4vurS6Gy1aVodiiq3ls6baX05z # /Y8DJGpPByA+GI2prdwq9oTIhEIU2bJDDz32NkwHM99SE25h+iyh21Ap5Ojkegm7 # 1squIskxX3QLtEMxBCe+XIKzEZ51kzNZxmLXvCFW5YetypNdhyULqH/UDWt7hIDN # BSh2w1g/lSw9n6DtEN3rURYAR/uV7/7IMEP8Td2wvcDX4o95Fkw= # =q0cF # -----END PGP SIGNATURE----- # gpg: Signature made Tue 05 Nov 2024 23:32:55 GMT # 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 'hw-misc-20241105' of https://github.com/philmd/qemu: (29 commits) hw/riscv/iommu: fix build error with clang hw/usb/hcd-ehci-sysbus: Prefer DEFINE_TYPES() macro hw/rtc/ds1338: Prefer DEFINE_TYPES() macro hw/i2c/smbus_eeprom: Prefer DEFINE_TYPES() macro hw/block/pflash_cfi01: Prefer DEFINE_TYPES() macro hw/sd/sdhci: Prefer DEFINE_TYPES() macro hw/ppc/mpc8544_guts: Prefer DEFINE_TYPES() macro hw/gpio/mpc8xxx: Prefer DEFINE_TYPES() macro hw/net/fsl_etsec/etsec: Prefer DEFINE_TYPES() macro hw/net/fsl_etsec/miim: Reuse MII constants hw/pci-host/ppce500: Prefer DEFINE_TYPES() macro hw/pci-host/ppce500: Reuse TYPE_PPC_E500_PCI_BRIDGE define hw/i2c/mpc_i2c: Prefer DEFINE_TYPES() macro hw/i2c/mpc_i2c: Convert DPRINTF to trace events for register access hw/ppc/mpc8544_guts: Populate POR PLL ratio status register hw/ppc/e500: Add missing device tree properties to i2c controller node hw/ppc/e500: Remove unused "irqs" parameter hw/ppc/e500: Prefer QOM cast hw/core: Add a helper to check the cache topology level hw/core: Check smp cache topology support for machine ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-11-06Merge tag 'crypto-fixes-pull-request' of https://gitlab.com/berrange/qemu ↵Peter Maydell1-48/+6
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----- # # iQIzBAABCAAdFiEE2vOm/bJrYpEtDo4/vobrtBUQT98FAmcqZpkACgkQvobrtBUQ # T992Gg//TMfrdS8CtjzCMSDbPuGu4NSkNa0nm3vnz6KOyOoZ7MYDjhWFXux0xckG # cetuWBPQR/prQorzVje2ojEa3aUWQ4AxOn6xbHg1bXl+nCLB2iu9RcKy0vc/pZ2i # mFI3HIFyZjETJ/9NXgy7fZFTNmiMAucYwtxfHXwcvRXHH8cBGIwiXpAWpAOo2pXd # iS90PDxxd20anykuHBmN9RSXcLTaEqT5pIMCowqPVh0vwdnLVi+5UpYrwR6JYIG7 # GxsnoXXl5aB786gEL0M2p4XTfJs0zESVMAt2sjxD8gtVDERd87x1cCHLkuVnb3GS # HtHdxRT4TeUjwvYStU9lNpHT3wC1vGaU8x7SBKZ9VensbR+OERWlkdJGRixXc9FT # 1RyRfJzUbCk7wjJFfNmhMvEaE8sSvhxIc1JVQVCDBxqpMYTFOmLZqhD0vpcxkyot # go1+y0+6wlxjw2/JlOG0CDDDnYwOpRCETYTHm0G0/Gm4izu/YQOGqCC/0YA+mOhX # Gkg230gj2BzWYFvU7iGotEY3yWN6qRN06+GRlImDSNmFr6FdEzc8u5ZvDtVuq3++ # SwvbKQ7N0sJbzmWCyB9/rNiJMu5723VW9phCmRwcUBp79fVYJpH+QOHmZixoqBf7 # oKUYxhRhzCiQQaxWG7E8Um7sDjk0LTYf29W0tebCSZuRqSnVHGM= # =tzW1 # -----END PGP SIGNATURE----- # 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>
2024-11-05qapi/qom: Define cache enumeration and properties for machineZhao Liu1-0/+50
The x86 and ARM need to allow user to configure cache properties (current only topology): * For x86, the default cache topology model (of max/host CPU) does not always match the Host's real physical cache topology. Performance can increase when the configured virtual topology is closer to the physical topology than a default topology would be. * For ARM, QEMU can't get the cache topology information from the CPU registers, then user configuration is necessary. Additionally, the cache information is also needed for MPAM emulation (for TCG) to build the right PPTT. Define smp-cache related enumeration and properties in QAPI, so that user could configure cache properties for SMP system through -machine in the subsequent patch. Cache enumeration (CacheLevelAndType) is implemented as the combination of cache level (level 1/2/3) and cache type (data/instruction/unified). Currently, separated L1 cache (L1 data cache and L1 instruction cache) with unified higher-level cache (e.g., unified L2 and L3 caches), is the most common cache architectures. Therefore, enumerate the L1 D-cache, L1 I-cache, L2 cache and L3 cache with smp-cache object to add the basic cache topology support. Other kinds of caches (e.g., L1 unified or L2/L3 separated caches) can be added directly into CacheLevelAndType if necessary. Cache properties (SmpCacheProperties) currently only contains cache topology information, and other cache properties can be added in it if necessary. Note, define cache topology based on CPU topology level with two reasons: 1. In practice, a cache will always be bound to the CPU container (either private in the CPU container or shared among multiple containers), and CPU container is often expressed in terms of CPU topology level. 2. The x86's cache-related CPUIDs encode cache topology based on APIC ID's CPU topology layout. And the ACPI PPTT table that ARM/RISCV relies on also requires CPU containers to help indicate the private shared hierarchy of the cache. Therefore, for SMP systems, it is natural to use the CPU topology hierarchy directly in QEMU to define the cache topology. With smp-cache QAPI support, add smp cache topology for machine by parsing the smp-cache object list. Also add the helper to access/update cache topology level of machine. Suggested-by: Daniel P. Berrange <berrange@redhat.com> Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Tested-by: Yongwei Ma <yongwei.ma@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Message-ID: <20241101083331.340178-4-zhao1.liu@intel.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-11-05hw/core: Make CPU topology enumeration arch-agnosticZhao Liu1-1/+43
Cache topology needs to be defined based on CPU topology levels. Thus, define CPU topology enumeration in qapi/machine.json to make it generic for all architectures. To match the general topology naming style, rename CPU_TOPO_LEVEL_* to CPU_TOPOLOGY_LEVEL_*, and rename SMT and package levels to thread and socket. Also, enumerate additional topology levels for non-i386 arches, and add a CPU_TOPOLOGY_LEVEL_DEFAULT to help future smp-cache object to work with compatibility requirement of arch-specific cache topology models. Signed-off-by: Zhao Liu <zhao1.liu@intel.com> Tested-by: Yongwei Ma <yongwei.ma@intel.com> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Acked-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-ID: <20241101083331.340178-3-zhao1.liu@intel.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
2024-11-05crypto: Introduce SM3 hash hmac pbkdf algorithmliequan che1-1/+2
Introduce the SM3 cryptographic hash algorithm (GB/T 32905-2016). SM3 (GB/T 32905-2016) is a cryptographic standard issued by the Organization of State Commercial Cryptography Administration (OSCCA) as an authorized cryptographic algorithm for use within China. Detect the SM3 cryptographic hash algorithm and enable the feature silently if it is available. Signed-off-by: cheliequan <cheliequan@inspur.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-11-05crypto: purge 'loaded' property that was not fully removedDaniel P. Berrangé1-47/+4
The 'loaded' property on TLS creds and secret objects was marked as deprecated in 6.0.0. In 7.1.0 the deprecation info was moved into the 'removed-features.rst' file, but the property was not actually removed, just made read-only. This was a highly unusual practice, so finish the long overdue removal job. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-11-05Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu ↵Peter Maydell2-0/+65
into staging virtio,pc,pci: features, fixes, cleanups CXL now can use Generic Port Affinity Structures. CXL now allows control of link speed and width vhost-user-blk now supports live resize, by means of a new device-sync-config command amd iommu now supports interrupt remapping pcie devices now report extended tag field support intel_iommu dropped support for Transient Mapping, to match VTD spec arch agnostic ACPI infrastructure for vCPU Hotplug Fixes, cleanups all over the place. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # -----BEGIN PGP SIGNATURE----- # # iQFDBAABCAAtFiEEXQn9CHHI+FuUyooNKB8NuNKNVGkFAmcpNqUPHG1zdEByZWRo # YXQuY29tAAoJECgfDbjSjVRp/2oH/0qO33prhDa48J5mqT9NuJzzYwp5QHKF9Zjv # fDAplMUEmfxZIEgJchcyDWPYTGX2geT4pCFhRWioZMIR/0JyzrFgSwsk1kL88cMh # 46gzhNVD6ybyPJ7O0Zq3GLy5jo7rlw/n+fFxKAuRCzcbK/fmH8gNC+RwW1IP64Na # HDczYilHUhnO7yKZFQzQNQVbK4BckrG1bu0Fcx0EMUQBf4V6x7GLOrT+3hkKYcr6 # +DG5DmUmv20or/FXnu2Ye+MzR8Ebx6JVK3A3sXEE4Ns2CCzK9QLzeeyc2aU13jWN # OpZ6WcKF8HqYprIwnSsMTxhPcq0/c7TvrGrazVwna5RUBMyjjvc= # =zSX4 # -----END PGP SIGNATURE----- # gpg: Signature made Mon 04 Nov 2024 21:03:33 GMT # 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: (65 commits) intel_iommu: Add missed reserved bit check for IEC descriptor intel_iommu: Add missed sanity check for 256-bit invalidation queue intel_iommu: Send IQE event when setting reserved bit in IQT_TAIL hw/acpi: Update GED with vCPU Hotplug VMSD for migration tests/qtest/bios-tables-test: Update DSDT golden masters for x86/{pc,q35} hw/acpi: Update ACPI `_STA` method with QOM vCPU ACPI Hotplug states qtest: allow ACPI DSDT Table changes hw/acpi: Make CPUs ACPI `presence` conditional during vCPU hot-unplug hw/pci: Add parenthesis to PCI_BUILD_BDF macro hw/cxl: Ensure there is enough data to read the input header in cmd_get_physical_port_state() hw/cxl: Ensure there is enough data for the header in cmd_ccls_set_lsa() hw/cxl: Check that writes do not go beyond end of target attributes hw/cxl: Ensuring enough data to read parameters in cmd_tunnel_management_cmd() hw/cxl: Avoid accesses beyond the end of cel_log. hw/cxl: Check the length of data requested fits in get_log() hw/cxl: Check enough data in cmd_firmware_update_transfer() hw/cxl: Check input length is large enough in cmd_events_clear_records() hw/cxl: Check input includes at least the header in cmd_features_set_feature() hw/cxl: Check size of input data to dynamic capacity mailbox commands hw/cxl/cxl-mailbox-util: Fix output buffer index update when retrieving DC extents ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-11-04qapi: introduce device-sync-configVladimir Sementsov-Ogievskiy1-0/+24
Add command to sync config from vhost-user backend to the device. It may be helpful when VHOST_USER_SLAVE_CONFIG_CHANGE_MSG failed or not triggered interrupt to the guest or just not available (not supported by vhost-user server). Command result is racy if allow it during migration. Let's not allow that. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Reviewed-by: Markus Armbruster <armbru@redhat.com> Acked-by: Raphael Norwitz <raphael@enfabrica.net> Message-Id: <20240920094936.450987-4-vsementsov@yandex-team.ru> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-11-04hw/acpi: Generic Port Affinity Structure supportJonathan Cameron1-0/+41
These are very similar to the recently added Generic Initiators but instead of representing an initiator of memory traffic they represent an edge point beyond which may lie either targets or initiators. Here we add these ports such that they may be targets of hmat_lb records to describe the latency and bandwidth from host side initiators to the port. A discoverable mechanism such as UEFI CDAT read from CXL devices and switches is used to discover the remainder of the path, and the OS can build up full latency and bandwidth numbers as need for work and data placement decisions. Acked-by: Markus Armbruster <armbru@redhat.com> Tested-by: "Huang, Ying" <ying.huang@intel.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Message-Id: <20240916174122.1843197-1-Jonathan.Cameron@huawei.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-11-04Merge tag 'pull-request-2024-11-04' of https://gitlab.com/thuth/qemu into ↵Peter Maydell1-1/+1
staging * Remove the redundant macOS-15 CI job * Various fixes, improvements and additions for the functional test suite * Restore the sh4eb target * Fix the OpenBSD VM test * Re-enable the pci-bridge device on s390x * Minor clean-ups / fixes for the next-cube machine # -----BEGIN PGP SIGNATURE----- # # iQJFBAABCAAvFiEEJ7iIR+7gJQEY8+q5LtnXdP5wLbUFAmcoyoQRHHRodXRoQHJl # ZGhhdC5jb20ACgkQLtnXdP5wLbVwRg/+M8RWxOW5M2GmEfAj/e1IatLS2eXek6fE # YOCPxvc5VK5rjXzcRKNqNKP53gBkF0PRho68b3IkBI6ylDOdzdRcDYsi8CSLWbG4 # O6heGJRzn9HyIS+UShAoqoj9l7lxODcZvEJK2ueiy/Hri/Zc4TpullLhSgAPKTgn # Ln75nd+hWwS9e0df1BSOBax2iEU/2j1yuBVCcFgFHH8K39Wqrs6Xtyay9yPjYLUg # pHNGObikrLF47KGI5yZ22/iVgwr5yhd3KzycjbxHVccCqZSsGl2xkCBwKNlIodRO # RMhTzUhOMi/RSjvdSbM5d2Nh4aCJ5mNzzWSUklHdYWnrMOv6uECJ0h2o0ve5L4kT # jtTGTcLe8a+JsDs+UxeVWqqlUf4w8Vv0DRky6D6ln25hcqrOveJE++o58FHFt/AX # jEolRU5k2tMpOSMgE3wAi5BVCttpI3Idly/IC+rntMjQOTwdKPlgfcBIqQmXI6M8 # dM6oUf9WnIr/CAt7qG6QjCONjeBmuMlZV4+v7xdqFsJpwCTyo6k3LwoHx3pTC73z # 6x0SmpeDoTzdw6B7O1HlLNllW7hd2/5GQ5qTH+E1pKAktkOf3MQeSD6qQEMjwH7T # e7hNUV+APgtDqpnQ0xcTL5AwNAkDGKoKBmaIp0vlwGUET55fw5N0Wb6Oo9LOgeFl # yqi5GxIuJu4= # =CTOw # -----END PGP SIGNATURE----- # gpg: Signature made Mon 04 Nov 2024 13:22:12 GMT # gpg: using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5 # gpg: issuer "thuth@redhat.com" # gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full] # gpg: aka "Thomas Huth <thuth@redhat.com>" [full] # gpg: aka "Thomas Huth <huth@tuxfamily.org>" [full] # gpg: aka "Thomas Huth <th.huth@posteo.de>" [unknown] # Primary key fingerprint: 27B8 8847 EEE0 2501 18F3 EAB9 2ED9 D774 FE70 2DB5 * tag 'pull-request-2024-11-04' of https://gitlab.com/thuth/qemu: tests/functional: Convert the OrangePi tests to the functional framework tests/functional: Convert BananaPi tests to the functional framework tests/functional: Convert the tcg_plugins test next-cube: remove cpu parameter from next_scsi_init() next-cube: fix up compilation when DEBUG_NEXT is enabled hw/s390x: Re-enable the pci-bridge device on s390x tests/functional: Fix the s390x and ppc64 tuxrun tests tests/vm/openbsd: Remove the "Time appears wrong" workaround tests/functional: Add a test for sh4eb Revert "Remove the unused sh4eb target" tests/functional: make cached asset files read-only tests/functional: make tuxrun disk images writable .gitlab-ci.d/cirrus: Remove the macos-15 job Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-11-04Revert "Remove the unused sh4eb target"Thomas Huth1-1/+1
This reverts commit 73ceb12960e686b763415f0880cc5171ccce01cf. The "r2d" machine can work in big endian mode, see: https://lore.kernel.org/qemu-devel/d6755445-1060-48a8-82b6-2f392c21f9b9@landley.net/ So the reasoning for removing sh4eb was wrong. Message-ID: <20241024082735.42324-2-thuth@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Rob Landley <rob@landley.net> Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-10-31migration: Deprecate query-migrationthreads commandPeter Xu1-1/+6
Per previous discussion [1,2], this patch deprecates query-migrationthreads command. To summarize, the major reason of the deprecation is due to no sensible way to consume the API properly: (1) The reported list of threads are incomplete (ignoring destination threads and non-multifd threads). (2) For CPU pinning, there's no way to properly pin the threads with the API if the threads will start running right away after migration threads can be queried, so the threads will always run on the default cores for a short window. (3) For VM debugging, one can use "-name $VM,debug-threads=on" instead, which will provide proper names for all migration threads. [1] https://lore.kernel.org/r/20240930195837.825728-1-peterx@redhat.com [2] https://lore.kernel.org/r/20241011153417.516715-1-peterx@redhat.com Reviewed-by: Fabiano Rosas <farosas@suse.de> Acked-by: Markus Armbruster <armbru@redhat.com> Link: https://lore.kernel.org/r/20241022194501.1022443-1-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com>
2024-10-28net/stream: deprecate 'reconnect' in favor of 'reconnect-ms'Daniil Tatianin1-1/+12
Do the same thing we already did for chardev in c8e2b6b4d7e, and introduce a new 'reconnect-ms' option to make it possible to specify sub-second timeouts. This also changes the related documentaion and tests to use reconnect-ms as well. Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2024-10-22block-backend: per-device throttling of BLOCK_IO_ERROR reportsLeonid Kaplan1-0/+2
BLOCK_IO_ERROR events comes from guest, so we must throttle them. We still want per-device throttling, so let's use device id as a key. Signed-off-by: Leonid Kaplan <xeor@yandex-team.ru> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Message-ID: <20241002151806.592469-3-vsementsov@yandex-team.ru> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2024-10-22qapi: add qom-path to BLOCK_IO_ERROR eventVladimir Sementsov-Ogievskiy1-2/+5
We need something more reliable than "device" (which absent in modern interfaces) and "node-name" (which may absent, and actually don't specify the device, which is a source of error) to make a per-device throttling for the event in the following commit. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Message-ID: <20241002151806.592469-2-vsementsov@yandex-team.ru> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2024-10-09Merge tag 'migration-20241009-pull-request' of ↵Peter Maydell1-1/+4
https://gitlab.com/peterx/qemu into staging Migration pull request - Ani's patch to complete the memory API on coalesced IO / eventfd notifies - Fabiano's Coverity fix on using pstrcpy() over strncpy() - Dave's series on removing/deprecating zero-blocks and uffd cleanups - Juraj's one more fix on multifd/cancel test where it can fail when cancellation happens too slow on src - Dave's one more remove deadcode patch in iova-tree.c - Yuan's build fix for multifd qpl compressor # -----BEGIN PGP SIGNATURE----- # # iIgEABYKADAWIQS5GE3CDMRX2s990ak7X8zN86vXBgUCZwZ6CBIccGV0ZXJ4QHJl # ZGhhdC5jb20ACgkQO1/MzfOr1wa3ZwD9HiAN9m7WOfZxXKOVIIwhOjUNTw0FiFeO # HMxp8A2jeYsBAK+d5lYGX1V2FtQ152YiOJQzRW31MkdAOishJzcHCXgO # =gBW0 # -----END PGP SIGNATURE----- # gpg: Signature made Wed 09 Oct 2024 13:41:44 BST # gpg: using EDDSA key B9184DC20CC457DACF7DD1A93B5FCCCDF3ABD706 # gpg: issuer "peterx@redhat.com" # gpg: Good signature from "Peter Xu <xzpeter@gmail.com>" [marginal] # gpg: aka "Peter Xu <peterx@redhat.com>" [marginal] # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: B918 4DC2 0CC4 57DA CF7D D1A9 3B5F CCCD F3AB D706 * tag 'migration-20241009-pull-request' of https://gitlab.com/peterx/qemu: migration/multifd: fix build error when qpl compression is enabled util/iova-tree: Remove deadcode tests/migration-test: Wait for cancellation sooner in multifd cancel util/userfaultfd: Remove unused uffd_poll_events migration/postcopy: Use uffd helpers util/userfaultfd: Return -errno on error migration: Remove unused socket_send_channel_create_sync migration: Deprecate zero-blocks capability migration: Remove unused migrate_zero_blocks migration: Remove migrate_cap_set migration/multifd: Ensure packet->ramblock is null-terminated memory: notify hypervisor of all eventfds during listener (de)registration Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2024-10-09chardev: add path option for pty backendOctavian Purdila1-1/+26
Add path option to the pty char backend which will create a symbolic link to the given path that points to the allocated PTY. This avoids having to make QMP or HMP monitor queries to find out what the new PTY device path is. Based on patch from Paulo Neves: https://patchew.org/QEMU/1548509635-15776-1-git-send-email-ptsneves@gmail.com/ Tested with the following invocations that the link is created and removed when qemu stops: qemu-system-x86_64 -nodefaults -mon chardev=compat_monitor \ -chardev pty,path=test,id=compat_monitor0 qemu-system-x86_64 -nodefaults -monitor pty:test # check QMP invocation with path set qemu-system-x86_64 -nodefaults -qmp tcp:localhost:4444,server=on,wait=off nc localhost 4444 > {"execute": "qmp_capabilities"} > {"execute": "chardev-add", "arguments": {"id": "bar", "backend": { "type": "pty", "data": {"path": "test" }}}} # check QMP invocation with path not set qemu-system-x86_64 -nodefaults -qmp tcp:localhost:4444,server=on,wait=off nc localhost 4444 > {"execute": "qmp_capabilities"} > {"execute": "chardev-add", "arguments": {"id": "bar", "backend": { "type": "pty", "data": {}}}} Also tested that when a link path is not passed invocations still work, e.g.: qemu-system-x86_64 -monitor pty Co-authored-by: Paulo Neves <ptsneves@gmail.com> Signed-off-by: Paulo Neves <ptsneves@gmail.com> [OP: rebase and address original patch review comments] Signed-off-by: Octavian Purdila <tavip@google.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-ID: <20240806010735.2450555-1-tavip@google.com>
2024-10-09chardev: introduce 'reconnect-ms' and deprecate 'reconnect'Daniil Tatianin1-2/+15
The 'reconnect' option only allows to specify the time in seconds, which is way too long for certain workflows. We have a lightweight disk backend server, which takes about 20ms to live update, but due to this limitation in QEMU, previously the guest disk controller would hang for one second because it would take this long for QEMU to reinitialize the socket connection. Introduce a new option called 'reconnect-ms', which is the same as 'reconnect', except the value is treated as milliseconds. These are mutually exclusive and specifying both results in an error. 'reconnect' is also deprecated by this commit to make it possible to remove it in the future as to not keep two options that control the same thing. Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Acked-by: Peter Krempa <pkrempa@redhat.com> Signed-off-by: Daniil Tatianin <d-tatianin@yandex-team.ru> Acked-by: Markus Armbruster <armbru@redhat.com> Tested-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20240913094604.269135-1-d-tatianin@yandex-team.ru>
generated by cgit v1.1 at 2025-04-03 03:18:01 +0000