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2024-05-08hmp/migration: Fix "migrate" command's documentationPeter Xu1-3/+9
Peter missed the Sphinx HMP document for the "resume/-r" flag in commit 7a4da28b26 ("qmp: hmp: add migrate "resume" option"). Add it. When at it, slightly cleanup the lines around: - Move "detach/-d" to a separate section rather than appending it at the end of the command description. Add a hint for how to query the migration results in detached mode. - Add "postcopy" keyword to "resume/-r" help messages, as it only applies to postcopy. Cc: Dr. David Alan Gilbert <dave@treblig.org> Cc: Fabiano Rosas <farosas@suse.de> Fixes: 7a4da28b26 ("qmp: hmp: add migrate "resume" option") Reported-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-05-08migration: Remove 'blk/-b' option from migrate commandsFabiano Rosas1-8/+4
The block migration is considered obsolete and has been deprecated in 8.2. Remove the migrate command option that enables it. This only affects the QMP and HMP commands, the feature can still be accessed by setting the migration 'block' capability. The whole feature will be removed in a future patch. Deprecation commit 8846b5bfca ("migration: migrate 'blk' command option is deprecated."). Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-05-08migration: Remove 'inc' option from migrate commandFabiano Rosas1-9/+4
The block incremental option for block migration has been deprecated in 8.2 in favor of using the block-mirror feature. Remove it now. Deprecation commit 40101f320d ("migration: migrate 'inc' command option is deprecated."). Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Signed-off-by: Fabiano Rosas <farosas@suse.de>
2024-04-02hmp: Add help information for watchdog action: inject-nmiDayu Liu1-1/+1
virsh qemu-monitor-command --hmp help information of watchdog_action missing inject-nmi which already supported in Commit 795dc6e4 Resolves: https://gitlab.com/qemu-project/qemu/-/issues/2247 Signed-off-by: Dayu Liu <liu.dayu@zte.com.cn> Reviewed-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> [Mjt: decode and word-wrap commit message and add Resolves: tag]
2024-01-19hmp: Remove deprecated 'singlestep' commandPhilippe Mathieu-Daudé1-13/+0
This command has been deprecated before the 8.1 release, in commit e9ccfdd91d ("hmp: Add 'one-insn-per-tb' command equivalent to 'singlestep'"). Time to drop it. Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: "Dr. David Alan Gilbert" <dave@treblig.org> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-ID: <20240117151430.29235-3-philmd@linaro.org> Signed-off-by: Thomas Huth <thuth@redhat.com>
2024-01-15docs/devel/docs: Document .hx file syntaxPeter Maydell1-5/+5
We don't currently document the syntax of .hx files anywhere except in a few comments at the top of individual .hx files. We don't even have somewhere in the developer docs where we could do this. Add a new files docs/devel/docs.rst which can be a place to document how our docs build process works. For the moment, put in only a brief introductory paragraph and the documentation of the .hx files. We could later add to this file by for example describing how the QAPI-schema-to-docs process works, or anything else that developers might need to know about how to add documentation. Make the .hx files refer to this doc file, and clean up their header comments to be more accurate for the usage in each file and less cut-n-pasted. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Luc Michel <luc.michel@amd.com> Reviewed-by: David Woodhouse <dwmw@amazon.co.uk> Message-id: 20231212162313.1742462-1-peter.maydell@linaro.org
2023-11-07qmp/hmp: disable screendump if PIXMAN is missingMarc-André Lureau1-0/+2
The command requires color conversion and line-by-line feeding. We could have a simple fallback for simple formats though. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Reviewed-by: Thomas Huth <thuth@redhat.com>
2023-11-02dump: Add command interface for kdump-raw formatsStephen Brennan1-2/+7
The QMP dump API represents the dump format as an enumeration. Add three new enumerators, one for each supported kdump compression, each named "kdump-raw-*". For the HMP command line, rather than adding a new flag corresponding to each format, it seems more human-friendly to add a single flag "-R" to switch the kdump formats to "raw" mode. The choice of "-R" also correlates nicely to the "makedumpfile -R" option, which would serve to reassemble a flattened vmcore. Signed-off-by: Stephen Brennan <stephen.s.brennan@oracle.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> [ Marc-André: replace loff_t with off_t, indent fixes ] Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20230918233233.1431858-4-stephen.s.brennan@oracle.com>
2023-09-18net: add initial support for AF_XDP network backendIlya Maximets1-0/+3
AF_XDP is a network socket family that allows communication directly with the network device driver in the kernel, bypassing most or all of the kernel networking stack. In the essence, the technology is pretty similar to netmap. But, unlike netmap, AF_XDP is Linux-native and works with any network interfaces without driver modifications. Unlike vhost-based backends (kernel, user, vdpa), AF_XDP doesn't require access to character devices or unix sockets. Only access to the network interface itself is necessary. This patch implements a network backend that communicates with the kernel by creating an AF_XDP socket. A chunk of userspace memory is shared between QEMU and the host kernel. 4 ring buffers (Tx, Rx, Fill and Completion) are placed in that memory along with a pool of memory buffers for the packet data. Data transmission is done by allocating one of the buffers, copying packet data into it and placing the pointer into Tx ring. After transmission, device will return the buffer via Completion ring. On Rx, device will take a buffer form a pre-populated Fill ring, write the packet data into it and place the buffer into Rx ring. AF_XDP network backend takes on the communication with the host kernel and the network interface and forwards packets to/from the peer device in QEMU. Usage example: -device virtio-net-pci,netdev=guest1,mac=00:16:35:AF:AA:5C -netdev af-xdp,ifname=ens6f1np1,id=guest1,mode=native,queues=1 XDP program bridges the socket with a network interface. It can be attached to the interface in 2 different modes: 1. skb - this mode should work for any interface and doesn't require driver support. With a caveat of lower performance. 2. native - this does require support from the driver and allows to bypass skb allocation in the kernel and potentially use zero-copy while getting packets in/out userspace. By default, QEMU will try to use native mode and fall back to skb. Mode can be forced via 'mode' option. To force 'copy' even in native mode, use 'force-copy=on' option. This might be useful if there is some issue with the driver. Option 'queues=N' allows to specify how many device queues should be open. Note that all the queues that are not open are still functional and can receive traffic, but it will not be delivered to QEMU. So, the number of device queues should generally match the QEMU configuration, unless the device is shared with something else and the traffic re-direction to appropriate queues is correctly configured on a device level (e.g. with ethtool -N). 'start-queue=M' option can be used to specify from which queue id QEMU should start configuring 'N' queues. It might also be necessary to use this option with certain NICs, e.g. MLX5 NICs. See the docs for examples. In a general case QEMU will need CAP_NET_ADMIN and CAP_SYS_ADMIN or CAP_BPF capabilities in order to load default XSK/XDP programs to the network interface and configure BPF maps. It is possible, however, to run with no capabilities. For that to work, an external process with enough capabilities will need to pre-load default XSK program, create AF_XDP sockets and pass their file descriptors to QEMU process on startup via 'sock-fds' option. Network backend will need to be configured with 'inhibit=on' to avoid loading of the program. QEMU will need 32 MB of locked memory (RLIMIT_MEMLOCK) per queue or CAP_IPC_LOCK. There are few performance challenges with the current network backends. First is that they do not support IO threads. This means that data path is handled by the main thread in QEMU and may slow down other work or may be slowed down by some other work. This also means that taking advantage of multi-queue is generally not possible today. Another thing is that data path is going through the device emulation code, which is not really optimized for performance. The fastest "frontend" device is virtio-net. But it's not optimized for heavy traffic either, because it expects such use-cases to be handled via some implementation of vhost (user, kernel, vdpa). In practice, we have virtio notifications and rcu lock/unlock on a per-packet basis and not very efficient accesses to the guest memory. Communication channels between backend and frontend devices do not allow passing more than one packet at a time as well. Some of these challenges can be avoided in the future by adding better batching into device emulation or by implementing vhost-af-xdp variant. There are also a few kernel limitations. AF_XDP sockets do not support any kinds of checksum or segmentation offloading. Buffers are limited to a page size (4K), i.e. MTU is limited. Multi-buffer support implementation for AF_XDP is in progress, but not ready yet. Also, transmission in all non-zero-copy modes is synchronous, i.e. done in a syscall. That doesn't allow high packet rates on virtual interfaces. However, keeping in mind all of these challenges, current implementation of the AF_XDP backend shows a decent performance while running on top of a physical NIC with zero-copy support. Test setup: 2 VMs running on 2 physical hosts connected via ConnectX6-Dx card. Network backend is configured to open the NIC directly in native mode. The driver supports zero-copy. NIC is configured to use 1 queue. Inside a VM - iperf3 for basic TCP performance testing and dpdk-testpmd for PPS testing. iperf3 result: TCP stream : 19.1 Gbps dpdk-testpmd (single queue, single CPU core, 64 B packets) results: Tx only : 3.4 Mpps Rx only : 2.0 Mpps L2 FWD Loopback : 1.5 Mpps In skb mode the same setup shows much lower performance, similar to the setup where pair of physical NICs is replaced with veth pair: iperf3 result: TCP stream : 9 Gbps dpdk-testpmd (single queue, single CPU core, 64 B packets) results: Tx only : 1.2 Mpps Rx only : 1.0 Mpps L2 FWD Loopback : 0.7 Mpps Results in skb mode or over the veth are close to results of a tap backend with vhost=on and disabled segmentation offloading bridged with a NIC. Signed-off-by: Ilya Maximets <i.maximets@ovn.org> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> (docker/lcitool) Signed-off-by: Jason Wang <jasowang@redhat.com>
2023-05-10build: move COLO under CONFIG_REPLICATIONVladimir Sementsov-Ogievskiy1-0/+2
We don't allow to use x-colo capability when replication is not configured. So, no reason to build COLO when replication is disabled, it's unusable in this case. Note also that the check in migrate_caps_check() is not the only restriction: some functions in migration/colo.c will just abort if called with not defined CONFIG_REPLICATION, for example: migration_iteration_finish() case MIGRATION_STATUS_COLO: migrate_start_colo_process() colo_process_checkpoint() abort() It could probably make sense to have possibility to enable COLO without REPLICATION, but this requires deeper audit of colo & replication code, which may be done later if needed. Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@yandex-team.ru> Acked-by: Dr. David Alan Gilbert <dave@treblig.org> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20230428194928.1426370-4-vsementsov@yandex-team.ru> Signed-off-by: Juan Quintela <quintela@redhat.com>
2023-05-02hmp: Add 'one-insn-per-tb' command equivalent to 'singlestep'Peter Maydell1-4/+21
The 'singlestep' HMP command is confusing, because it doesn't actually have anything to do with single-stepping the CPU. What it does do is force TCG emulation to put one guest instruction in each TB, which can be useful in some situations. Create a new HMP command 'one-insn-per-tb', so we can document that 'singlestep' is just a deprecated synonym for it, and eventually perhaps drop it. We aren't obliged to do deprecate-and-drop for HMP commands, but it's easy enough to do so, so we do. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Message-id: 20230417164041.684562-9-peter.maydell@linaro.org
2023-03-13monitor: restrict command getfd to POSIX hostsMarc-André Lureau1-0/+2
Currently, the function will simply fail if ancillary fds are not provided, for ex on unsupported platforms. This changes the failure from: {"error": {"class": "GenericError", "desc": "No file descriptor supplied via SCM_RIGHTS"}} to: {"error": {"class": "CommandNotFound", "desc": "The command getfd has not been found"}} Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
2023-03-01i386/xen: add monitor commands to test event injectionJoao Martins1-0/+29
Specifically add listing, injection of event channels. Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Paul Durrant <paul@xen.org>
2023-02-04monitor: Move remaining HMP commands from misc.c to hmp-cmds.cMarkus Armbruster1-2/+2
This requires giving them external linkage. Rename do_help_cmd() to hmp_help(), and do_print() to hmp_print(). Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20230124121946.1139465-30-armbru@redhat.com>
2022-10-28qapi: net: add stream and dgram netdevsLaurent Vivier1-1/+1
Copied from socket netdev file and modified to use SocketAddress to be able to introduce new features like unix socket. "udp" and "mcast" are squashed into dgram netdev, multicast is detected according to the IP address type. "listen" and "connect" modes are managed by stream netdev. An optional parameter "server" defines the mode (off by default) The two new types need to be parsed the modern way with -netdev, because with the traditional way, the "type" field of netdev structure collides with the "type" field of SocketAddress and prevents the correct evaluation of the command line option. Moreover the traditional way doesn't allow to use the same type (SocketAddress) several times with the -netdev option (needed to specify "local" and "remote" addresses). The previous commit paved the way for parsing the modern way, but omitted one detail: how to pick modern vs. traditional, in netdev_is_modern(). We want to pick based on the value of parameter "type". But how to extract it from the option argument? Parsing the option argument, either the modern or the traditional way, extracts it for us, but only if parsing succeeds. If parsing fails, there is no good option. No matter which parser we pick, it'll be the wrong one for some arguments, and the error reporting will be confusing. Fortunately, the traditional parser accepts *anything* when called in a certain way. This maximizes our chance to extract the value of "type", and in turn minimizes the risk of confusing error reporting. Signed-off-by: Laurent Vivier <lvivier@redhat.com> Reviewed-by: Stefano Brivio <sbrivio@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2022-10-17qmp/hmp, device_tree.c: introduce dumpdtbDaniel Henrique Barboza1-0/+15
To save the FDT blob we have the '-machine dumpdtb=<file>' property. With this property set, the machine saves the FDT in <file> and exit. The created file can then be converted to plain text dts format using 'dtc'. There's nothing particularly sophisticated into saving the FDT that can't be done with the machine at any state, as long as the machine has a valid FDT to be saved. The 'dumpdtb' command receives a 'filename' parameter and, if the FDT is available via current_machine->fdt, save it in dtb format to 'filename'. In short, this is a '-machine dumpdtb' that can be fired on demand via QMP/HMP. This command will always be executed in-band (i.e. holding BQL), avoiding potential race conditions with machines that might change the FDT during runtime (e.g. PowerPC 'pseries' machine). Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Markus Armbruster <armbru@redhat.com> Cc: Alistair Francis <alistair.francis@wdc.com> Cc: David Gibson <david@gibson.dropbear.id.au> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com> Message-Id: <20220926173855.1159396-2-danielhb413@gmail.com>
2022-09-15hmp: Fix ordering of textDr. David Alan Gilbert1-23/+23
Fix the ordering of the help text so it's always after the commands being defined. A few had got out of order. Keep 'info' at the end. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2022-07-20softmmu/dirtylimit: Implement dirty page rate limitHyman Huang(黄勇)1-0/+32
Implement dirtyrate calculation periodically basing on dirty-ring and throttle virtual CPU until it reachs the quota dirty page rate given by user. Introduce qmp commands "set-vcpu-dirty-limit", "cancel-vcpu-dirty-limit", "query-vcpu-dirty-limit" to enable, disable, query dirty page limit for virtual CPU. Meanwhile, introduce corresponding hmp commands "set_vcpu_dirty_limit", "cancel_vcpu_dirty_limit", "info vcpu_dirty_limit" so the feature can be more usable. "query-vcpu-dirty-limit" success depends on enabling dirty page rate limit, so just add it to the list of skipped command to ensure qmp-cmd-test run successfully. Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Peter Xu <peterx@redhat.com> Message-Id: <4143f26706d413dd29db0b672fe58b3d3fbe34bc.1656177590.git.huangy81@chinatelecom.cn> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2022-06-14block: add more commands to preconfig modePaolo Bonzini1-0/+14
Of the block device commands, those that are available outside system emulators do not require a fully constructed machine by definition. Allow running them before machine initialization has concluded. Of the ones that are available inside system emulation, allow querying the PR managers, and setting up accounting and throttling. Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2022-05-17net/vmnet: update hmp-commands.hxVladislav Yaroshchuk1-1/+5
Update HMP for supporting vmnet. Reviewed-by: Akihiko Odaki <akihiko.odaki@gmail.com> Tested-by: Akihiko Odaki <akihiko.odaki@gmail.com> Signed-off-by: Vladislav Yaroshchuk <Vladislav.Yaroshchuk@jetbrains.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2022-04-27Merge tag 'kraxel-20220427-pull-request' of git://git.kraxel.org/qemu into ↵Richard Henderson1-5/+6
staging vnc: add display-update monitor command. screendump: add png support. vmsvga: screen update fix. i386: sev setup for -bios loaded firmware # -----BEGIN PGP SIGNATURE----- # # iQIzBAABCgAdFiEEoDKM/7k6F6eZAf59TLbY7tPocTgFAmJpfYUACgkQTLbY7tPo # cTg6ChAAn5EWtNwmVbfbVzRTu0kqdx7QXyK6FFgTgXrsrmBCWzJhHDraYa9cMOZU # wBlU/Rutuv9ETvtRTRic3t0qcdRmvZjpHuA/3agBMJY7xpEQbQ8NwVdSRZTOZo0i # hXzWEAnxviEv8F/W1TXwB5d2Q9sWlJ2yO8SvcxTfAEK7hOSFrWypp3XRKr5WBHjO # DFTtwqTk9MRNsgsfnpEHNGDb30JPTqKZKRbDal15NDR9fQz+iCq3FIv/FpBaUfys # v9GA2zNT324MvhR64xNblaujCn2XFOsFvDY4nGDrfbKGJch8ltAg5t4G1CCZqOn7 # NIiwodC0508sAv9xUm+qvh+oHyf11EFdcAMWYimrExY2I51XOEDnJip/SAdogo5u # h7LyLkZTEG5tyc+a4PGIcC216ecDDNytMnJM9nh9YK3p5UiBOgcHV2wWDdzJbsdS # GRoP0fzF/MBQd985HBCF2vtQVk4AbQA7atZ8FKp1ZsHr3sFfs+vd0xyItsDMinBP # k/eKOOKbHRgXcdIocw4PK16yURrMo5IUGCGGiG9waqYz+VDyHhtikBAzQvYYdnqN # NaZttCcEieIk4XNd+wCfI0GQLtOY/AP1k8TV0rCaDTnO6nOxJ/uP64IaCzxzCT10 # b8VRdCfYDGjd2C14XYKmTzBRPM4hVrf9bo7FtXVtmSksTG+eIao= # =yaxh # -----END PGP SIGNATURE----- # gpg: Signature made Wed 27 Apr 2022 10:29:41 AM PDT # gpg: using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [undefined] # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" [undefined] # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [undefined] # gpg: WARNING: This key is not certified with a trusted signature! # gpg: There is no indication that the signature belongs to the owner. # Primary key fingerprint: A032 8CFF B93A 17A7 9901 FE7D 4CB6 D8EE D3E8 7138 * tag 'kraxel-20220427-pull-request' of git://git.kraxel.org/qemu: i386: firmware parsing and sev setup for -bios loaded firmware i386: factor out x86_firmware_configure() i386: move bios load error message avocado/vnc: add test_change_listen qapi/ui: add 'display-update' command for changing listen address ui/vnc: refactor arrays of addresses to SocketAddressList Added parameter to take screenshot with screendump as PNG Replacing CONFIG_VNC_PNG with CONFIG_PNG hw/display/vmware_vga: do not discard screen updates Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
2022-04-27Added parameter to take screenshot with screendump as PNGKshitij Suri1-5/+6
Currently screendump only supports PPM format, which is un-compressed. Added a "format" parameter to QMP and HMP screendump command to support PNG image capture using libpng. QMP example usage: { "execute": "screendump", "arguments": { "filename": "/tmp/image", "format":"png" } } HMP example usage: screendump /tmp/image -f png Resolves: https://gitlab.com/qemu-project/qemu/-/issues/718 Signed-off-by: Kshitij Suri <kshitij.suri@nutanix.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Acked-by: Markus Armbruster <armbru@redhat.com> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20220408071336.99839-3-kshitij.suri@nutanix.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2022-04-25block: add 'force' parameter to 'blockdev-change-medium' commandDenis V. Lunev1-4/+7
'blockdev-change-medium' is a convinient wrapper for the following sequence of commands: * blockdev-open-tray * blockdev-remove-medium * blockdev-insert-medium * blockdev-close-tray and should be used f.e. to change ISO image inside the CD-ROM tray. Though the guest could lock the tray and some linux guests like CentOS 8.5 actually does that. In this case the execution if this command results in the error like the following: Device 'scsi0-0-1-0' is locked and force was not specified, wait for tray to open and try again. This situation is could be resolved 'blockdev-open-tray' by passing flag 'force' inside. Thus is seems reasonable to add the same capability for 'blockdev-change-medium' too. Signed-off-by: Denis V. Lunev <den@openvz.org> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@openvz.org> Acked-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> CC: Hanna Reitz <hreitz@redhat.com> CC: Eric Blake <eblake@redhat.com> CC: Markus Armbruster <armbru@redhat.com> Message-Id: <20220412221846.280723-1-den@openvz.org> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Hanna Reitz <hreitz@redhat.com>
2022-04-22dump/win_dump: add 32-bit guest Windows supportViktor Prutyanov1-1/+1
Before this patch, 'dump-guest-memory -w' was accepting only 64-bit dump header provided by guest through vmcoreinfo and thus was unable to produce 32-bit guest Windows dump. So, add 32-bit guest Windows dumping support. Signed-off-by: Viktor Prutyanov <viktor.prutyanov@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> [ misc error handling fixes to avoid compiler warning ] Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220406171558.199263-5-viktor.prutyanov@redhat.com>
2022-03-02qapi/monitor: allow VNC display id in set/expire_passwordStefan Reiter1-11/+13
It is possible to specify more than one VNC server on the command line, either with an explicit ID or the auto-generated ones à la "default", "vnc2", "vnc3", ... It is not possible to change the password on one of these extra VNC displays though. Fix this by adding a "display" parameter to the "set_password" and "expire_password" QMP and HMP commands. For HMP, the display is specified using the "-d" value flag. For QMP, the schema is updated to explicitly express the supported variants of the commands with protocol-discriminated unions. Signed-off-by: Stefan Reiter <s.reiter@proxmox.com> [FE: update "Since: " from 6.2 to 7.0 make @connected a common member of @SetPasswordOptions] Signed-off-by: Fabian Ebner <f.ebner@proxmox.com> Message-Id: <20220225084949.35746-4-f.ebner@proxmox.com> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-11-09hmp: Add shortcut to stop command to match contBALATON Zoltan1-2/+2
Some commands such as quit or cont have one letter alternatives but stop is missing that. Add stop|s to match cont|c for consistency and convenience. Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-Id: <20211030095225.513D4748F48@zero.eik.bme.hu> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-11-01migration/dirtyrate: implement dirty-bitmap dirtyrate calculationHyman Huang(黄勇)1-4/+5
introduce dirty-bitmap mode as the third method of calc-dirty-rate. implement dirty-bitmap dirtyrate calculation, which can be used to measuring dirtyrate in the absence of dirty-ring. introduce "dirty_bitmap:-b" option in hmp calc_dirty_rate to indicate dirty bitmap method should be used for calculation. Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2021-11-01migration/dirtyrate: implement dirty-ring dirtyrate calculationHyman Huang(黄勇)1-3/+4
use dirty ring feature to implement dirtyrate calculation. introduce mode option in qmp calc_dirty_rate to specify what method should be used when calculating dirtyrate, either page-sampling or dirty-ring should be passed. introduce "dirty_ring:-r" option in hmp calc_dirty_rate to indicate dirty ring method should be used for calculation. Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn> Message-Id: <7db445109bd18125ce8ec86816d14f6ab5de6a7d.1624040308.git.huangy81@chinatelecom.cn> Reviewed-by: Peter Xu <peterx@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2021-09-27hmp: Drop a bogus sentence from set_password's documentationMarkus Armbruster1-6/+5
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Message-Id: <20210909081219.308065-3-armbru@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-06-11netdev: add more commands to preconfig modePaolo Bonzini1-0/+2
Creating and destroying network backend does not require a fully constructed machine. Allow the related monitor commands to run before machine initialization has concluded. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-08hmp: Add "calc_dirty_rate" and "info dirty_rate" cmdsPeter Xu1-0/+14
These two commands are missing when adding the QMP sister commands. Add them, so developers can play with them easier. Signed-off-by: Peter Xu <peterx@redhat.com> Signed-off-by: Hyman Huang(黄勇) <huangy81@chinatelecom.cn> Message-Id: <4cc0039fc3ad6145136770cf3b0f056c09a2910b.1623027729.git.huangy81@chinatelecom.cn> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-05-26Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into ↵Peter Maydell1-0/+2
staging * submodule cleanups (Philippe, myself) * tiny step towards a usable preconfig mode (myself) * Kconfig and LOCK_GUARD cleanups (philippe) * new x86 CPUID feature (Yang Zhong) * "-object qtest" support (myself) * Dirty ring support for KVM (Peter) * Fixes for 6.0 command line parsing breakage (myself) * Fix for macOS 11.3 SDK (Katsuhiro) # gpg: Signature made Wed 26 May 2021 13:50:12 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: (28 commits) gitlab-ci: use --meson=git for CFI jobs hw/scsi: Fix sector translation bug in scsi_unmap_complete_noio configure: Avoid error messages about missing *-config-*.h files doc: Add notes about -mon option mode=control argument. qemu-config: load modules when instantiating option groups vl: allow not specifying size in -m when using -M memory-backend replication: move include out of root directory remove qemu-options* from root directory meson: Set implicit_include_directories to false tests/qtest/fuzz: Fix build failure KVM: Dirty ring support KVM: Disable manual dirty log when dirty ring enabled KVM: Add dirty-ring-size property KVM: Cache kvm slot dirty bitmap size KVM: Simplify dirty log sync in kvm_set_phys_mem KVM: Provide helper to sync dirty bitmap from slot to ramblock KVM: Provide helper to get kvm dirty log KVM: Create the KVMSlot dirty bitmap on flag changes KVM: Use a big lock to replace per-kml slots_lock memory: Introduce log_sync_global() to memory listener ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-26object: add more commands to preconfig modePaolo Bonzini1-0/+2
Creating and destroying QOM objects does not require a fully constructed machine. Allow running object-add and object-del before machine initialization has concluded. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-05-25hmp-commands: expand type of icount to "l" in replay commandsAlex Bennée1-2/+2
This is not a 32 bit number, it can (and most likely will) be quite a big one. Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Message-Id: <20210520174303.12310-7-alex.bennee@linaro.org>
2021-03-23block: Remove monitor command block_passwdMarkus Armbruster1-15/+0
Command block_passwd always fails since Commit c01c214b69 "block: remove all encryption handling APIs" (v2.10.0) turned block_passwd into a stub that always fails, and hardcoded encryption_key_missing to false in query-named-block-nodes and query-block. Commit ad1324e044 "block: remove 'encryption_key_missing' flag from QAPI" just landed. Complete the cleanup job: remove block_passwd. Cc: Daniel P. Berrangé <berrange@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20210323101951.3686029-1-armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2021-03-19hmp: QAPIfy object_addKevin Wolf1-1/+1
This switches the HMP command object_add from a QemuOpts-based parser to user_creatable_add_from_str() which uses a keyval parser and enforces the QAPI schema. Apart from being a cleanup, this makes non-scalar properties and help accessible. In order for help to be printed to the monitor instead of stdout, the printf() calls in the help functions are changed to qemu_printf(). Signed-off-by: Kevin Wolf <kwolf@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Acked-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2021-03-18migrate: remove QMP/HMP commands for speed, downtime and cache sizeDaniel P. Berrangé1-45/+0
The generic 'migrate_set_parameters' command handle all types of param. Only the QMP commands were documented in the deprecations page, but the rationale for deprecating applies equally to HMP, and the replacements exist. Furthermore the HMP commands are just shims to the QMP commands, so removing the latter breaks the former unless they get re-implemented. Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-03-18ui, monitor: remove deprecated VNC ACL option and HMP commandsDaniel P. Berrangé1-76/+0
The VNC ACL concept has been replaced by the pluggable "authz" framework which does not use monitor commands. Reviewed-by: Thomas Huth <thuth@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-01-23hmp: remove "change vnc TARGET" commandPaolo Bonzini1-6/+0
The HMP command \"change vnc TARGET\" is messy: - it takes an ugly shortcut to determine if the option has an "id", with incorrect results if "id=" is not preceded by an unescaped comma. - it deletes the existing QemuOpts and does not try to rollback if the parsing fails (which is not causing problems, but only due to how VNC options are parsed) - because it uses the same parsing function as "-vnc", it forces the latter to not support "-vnc help". On top of this, it uses a deprecated QMP command, thus getting in the way of removing the QMP command. Since the usecase for the command is not clear, just remove it and send "change vnc password" directly to the QMP "change-vnc-password" command. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Message-Id: <20210120144235.345983-2-pbonzini@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-18hmp-commands.hx: List abbreviation after command for cont, quit, printPeter Maydell1-6/+6
We have four HMP commands which have a single-character abbreviated version: cont ('c'), quit ('q'), print ('p') and help ('h'). For cont, quit and print, we list the abbreviation first in the help documentation and the command name. This has the odd effect that in the full 'help' command list these commands end up sorted out of alphabetical order (they end up after all the other commands that start with the same letter). As it happens, the only place this currently changes the order is for 'cont'. Abbreviation first is also not a very logical order, and it doesn't match what we use for 'help' (which is 'help|?'). Put the full command name first in both the help text and the .name field for cont, quit and print. Fixes: https://bugs.launchpad.net/qemu/+bug/1614609 Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Message-Id: <20201121151711.20783-1-peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-12-15monitor: allow quitting while in preconfig statePaolo Bonzini1-0/+1
Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-12-09pcie_aer: Fix help message of pcie_aer_inject_error commandZenghui Yu1-2/+2
There is an interesting typo in the help message of pcie_aer_inject_error command. Use 'tlp' instead of 'tlb' to match the PCIe AER term. Signed-off-by: Zenghui Yu <yuzenghui@huawei.com> Message-Id: <20201204030953.837-1-yuzenghui@huawei.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-11-04console: make QMP/HMP screendump run in coroutineMarc-André Lureau1-0/+1
Thanks to the monitors' coroutine support (merge commit b7092cda1b3), the screendump handler can trigger a graphic_hw_update(), yield and let the main loop run until update is done. Then the handler is resumed, and ppm_save() will write the screen image to disk in the coroutine context. The IO is still blocking though, as the file is set blocking so far, this could be addressed by some future change (with other caveats). Related to: https://bugzilla.redhat.com/show_bug.cgi?id=1230527 Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-id: 20201027133602.3038018-4-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-10-09block: Convert 'block_resize' to coroutineKevin Wolf1-0/+1
block_resize performs some I/O that could potentially take quite some time, so use it as an example for the new 'coroutine': true annotation in the QAPI schema. bdrv_truncate() requires that we're already in the right AioContext for the BlockDriverState if called in coroutine context. So instead of just taking the AioContext lock, move the QMP handler coroutine to the context. Call blk_unref() only after switching back because blk_unref() may only be called in the main thread. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Message-Id: <20201005155855.256490-15-kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-10-06replay: implement replay-seek commandPavel Dovgalyuk1-0/+18
This patch adds hmp/qmp commands replay_seek/replay-seek that proceed the execution to the specified instruction count. The command automatically loads nearest snapshot and replays the execution to find the desired instruction count. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Acked-by: Markus Armbruster <armbru@redhat.com> -- v4 changes: - fixed HMP command description indent - removed useless error_free call Message-Id: <160174521180.12451.14033112911009278753.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-06replay: introduce breakpoint at the specified stepPavel Dovgalyuk1-0/+32
This patch introduces replay_break, replay_delete_break qmp and hmp commands. These commands allow stopping at the specified instruction. It may be useful for debugging when there are some known events that should be investigated. replay_break command has one argument - number of instructions executed since the start of the replay. replay_delete_break removes previously set breakpoint. Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru> Acked-by: Markus Armbruster <armbru@redhat.com> -- v4 changes: - removed useless error_free call Message-Id: <160174520606.12451.7056879546045599378.stgit@pasha-ThinkPad-X280> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-29cphp: remove deprecated cpu-add command(s)Igor Mammedov1-15/+0
These were deprecated since 4.0, remove both HMP and QMP variants. Users should use device_add command instead. To get list of possible CPUs and options, use 'info hotpluggable-cpus' HMP or query-hotpluggable-cpus QMP command. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Reviewed-by: Thomas Huth <thuth@redhat.com> Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Acked-by: Cornelia Huck <cohuck@redhat.com> Message-Id: <20200915120403.1074579-1-imammedo@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-09-17qemu/: fix some comment spelling errorszhaolichang1-1/+1
I found that there are many spelling errors in the comments of qemu, so I used the spellcheck tool to check the spelling errors and finally found some spelling errors in the folder. Signed-off-by: zhaolichang <zhaolichang@huawei.com> Reviewed-by: Alex Bennee <alex.bennee@linaro.org> Message-Id: <20200917075029.313-2-zhaolichang@huawei.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-06-17hmp: Make json format optional for qom-setDavid Hildenbrand1-3/+4
Commit 7d2ef6dcc1cf ("hmp: Simplify qom-set") switched to the json parser, making it possible to specify complex types. However, with this change it is no longer possible to specify proper sizes (e.g., 2G, 128M), turning the interface harder to use for properties that consume sizes. Let's switch back to the previous handling and allow to specify passing json via the "-j" parameter. Cc: Philippe Mathieu-Daudé <philmd@redhat.com> Cc: Markus Armbruster <armbru@redhat.com> Cc: Dr. David Alan Gilbert <dgilbert@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Daniel P. Berrangé" <berrange@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20200610075153.33892-1-david@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-06-01hmp: Simplify qom-setDr. David Alan Gilbert1-1/+1
Simplify qom_set by making it use qmp_qom_set and the JSON parser. (qemu) qom-get /machine smm "auto" (qemu) qom-set /machine smm "auto" Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-Id: <20200520151108.160598-3-dgilbert@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> With 's'->'S' type change suggested by Paolo and Markus
generated by cgit v1.1 at 2024-12-26 15:35:40 +0000