4735 lines
128 KiB
C
4735 lines
128 KiB
C
/*
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* QEMU monitor
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*
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* Copyright (c) 2003-2004 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include <dirent.h>
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#include "cpu.h"
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#include "hw/hw.h"
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#include "monitor/qdev.h"
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#include "hw/usb.h"
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#include "hw/pci/pci.h"
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#include "sysemu/watchdog.h"
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#include "hw/loader.h"
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#include "exec/gdbstub.h"
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#include "net/net.h"
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#include "net/slirp.h"
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#include "chardev/char-fe.h"
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#include "chardev/char-io.h"
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#include "chardev/char-mux.h"
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#include "ui/qemu-spice.h"
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#include "sysemu/numa.h"
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#include "monitor/monitor.h"
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#include "qemu/config-file.h"
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#include "qemu/readline.h"
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#include "ui/console.h"
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#include "ui/input.h"
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#include "sysemu/blockdev.h"
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#include "sysemu/block-backend.h"
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#include "audio/audio.h"
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#include "disas/disas.h"
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#include "sysemu/balloon.h"
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#include "qemu/timer.h"
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#include "sysemu/hw_accel.h"
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#include "qemu/acl.h"
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#include "sysemu/tpm.h"
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#include "qapi/qmp/qdict.h"
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#include "qapi/qmp/qerror.h"
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#include "qapi/qmp/qnum.h"
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#include "qapi/qmp/qstring.h"
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#include "qapi/qmp/qjson.h"
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#include "qapi/qmp/json-streamer.h"
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#include "qapi/qmp/json-parser.h"
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#include "qapi/qmp/qlist.h"
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#include "qom/object_interfaces.h"
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#include "trace-root.h"
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#include "trace/control.h"
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#include "monitor/hmp-target.h"
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#ifdef CONFIG_TRACE_SIMPLE
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#include "trace/simple.h"
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#endif
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#include "exec/memory.h"
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#include "exec/exec-all.h"
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#include "qemu/log.h"
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#include "qemu/option.h"
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#include "hmp.h"
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#include "qemu/thread.h"
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#include "block/qapi.h"
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#include "qapi/qapi-commands.h"
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#include "qapi/qapi-events.h"
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#include "qapi/error.h"
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#include "qapi/qmp-event.h"
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#include "qapi/qapi-introspect.h"
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#include "sysemu/qtest.h"
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#include "sysemu/cpus.h"
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#include "sysemu/iothread.h"
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#include "qemu/cutils.h"
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#if defined(TARGET_S390X)
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#include "hw/s390x/storage-keys.h"
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#include "hw/s390x/storage-attributes.h"
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#endif
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/*
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* Supported types:
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*
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* 'F' filename
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* 'B' block device name
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* 's' string (accept optional quote)
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* 'S' it just appends the rest of the string (accept optional quote)
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* 'O' option string of the form NAME=VALUE,...
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* parsed according to QemuOptsList given by its name
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* Example: 'device:O' uses qemu_device_opts.
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* Restriction: only lists with empty desc are supported
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* TODO lift the restriction
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* 'i' 32 bit integer
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* 'l' target long (32 or 64 bit)
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* 'M' Non-negative target long (32 or 64 bit), in user mode the
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* value is multiplied by 2^20 (think Mebibyte)
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* 'o' octets (aka bytes)
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* user mode accepts an optional E, e, P, p, T, t, G, g, M, m,
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* K, k suffix, which multiplies the value by 2^60 for suffixes E
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* and e, 2^50 for suffixes P and p, 2^40 for suffixes T and t,
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* 2^30 for suffixes G and g, 2^20 for M and m, 2^10 for K and k
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* 'T' double
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* user mode accepts an optional ms, us, ns suffix,
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* which divides the value by 1e3, 1e6, 1e9, respectively
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* '/' optional gdb-like print format (like "/10x")
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*
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* '?' optional type (for all types, except '/')
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* '.' other form of optional type (for 'i' and 'l')
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* 'b' boolean
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* user mode accepts "on" or "off"
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* '-' optional parameter (eg. '-f')
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*
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*/
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typedef struct mon_cmd_t {
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const char *name;
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const char *args_type;
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const char *params;
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const char *help;
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void (*cmd)(Monitor *mon, const QDict *qdict);
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/* @sub_table is a list of 2nd level of commands. If it does not exist,
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* cmd should be used. If it exists, sub_table[?].cmd should be
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* used, and cmd of 1st level plays the role of help function.
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*/
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struct mon_cmd_t *sub_table;
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void (*command_completion)(ReadLineState *rs, int nb_args, const char *str);
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} mon_cmd_t;
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/* file descriptors passed via SCM_RIGHTS */
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typedef struct mon_fd_t mon_fd_t;
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struct mon_fd_t {
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char *name;
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int fd;
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QLIST_ENTRY(mon_fd_t) next;
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};
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/* file descriptor associated with a file descriptor set */
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typedef struct MonFdsetFd MonFdsetFd;
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struct MonFdsetFd {
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int fd;
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bool removed;
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char *opaque;
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QLIST_ENTRY(MonFdsetFd) next;
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};
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/* file descriptor set containing fds passed via SCM_RIGHTS */
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typedef struct MonFdset MonFdset;
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struct MonFdset {
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int64_t id;
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QLIST_HEAD(, MonFdsetFd) fds;
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QLIST_HEAD(, MonFdsetFd) dup_fds;
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QLIST_ENTRY(MonFdset) next;
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};
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typedef struct {
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JSONMessageParser parser;
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/*
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* When a client connects, we're in capabilities negotiation mode.
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* When command qmp_capabilities succeeds, we go into command
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* mode.
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*/
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QmpCommandList *commands;
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bool qmp_caps[QMP_CAPABILITY__MAX];
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/*
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* Protects qmp request/response queue. Please take monitor_lock
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* first when used together.
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*/
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QemuMutex qmp_queue_lock;
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/* Input queue that holds all the parsed QMP requests */
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GQueue *qmp_requests;
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/* Output queue contains all the QMP responses in order */
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GQueue *qmp_responses;
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} MonitorQMP;
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/*
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* To prevent flooding clients, events can be throttled. The
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* throttling is calculated globally, rather than per-Monitor
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* instance.
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*/
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typedef struct MonitorQAPIEventState {
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QAPIEvent event; /* Throttling state for this event type and... */
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QDict *data; /* ... data, see qapi_event_throttle_equal() */
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QEMUTimer *timer; /* Timer for handling delayed events */
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QDict *qdict; /* Delayed event (if any) */
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} MonitorQAPIEventState;
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typedef struct {
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int64_t rate; /* Minimum time (in ns) between two events */
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} MonitorQAPIEventConf;
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struct Monitor {
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CharBackend chr;
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int reset_seen;
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int flags;
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int suspend_cnt; /* Needs to be accessed atomically */
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bool skip_flush;
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bool use_io_thr;
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/* We can't access guest memory when holding the lock */
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QemuMutex out_lock;
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QString *outbuf;
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guint out_watch;
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/* Read under either BQL or out_lock, written with BQL+out_lock. */
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int mux_out;
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ReadLineState *rs;
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MonitorQMP qmp;
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gchar *mon_cpu_path;
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BlockCompletionFunc *password_completion_cb;
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void *password_opaque;
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mon_cmd_t *cmd_table;
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QLIST_HEAD(,mon_fd_t) fds;
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QTAILQ_ENTRY(Monitor) entry;
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};
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/* Let's add monitor global variables to this struct. */
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static struct {
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IOThread *mon_iothread;
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/* Bottom half to dispatch the requests received from IO thread */
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QEMUBH *qmp_dispatcher_bh;
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/* Bottom half to deliver the responses back to clients */
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QEMUBH *qmp_respond_bh;
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} mon_global;
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struct QMPRequest {
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/* Owner of the request */
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Monitor *mon;
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/* "id" field of the request */
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QObject *id;
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/* Request object to be handled */
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QObject *req;
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/*
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* Whether we need to resume the monitor afterward. This flag is
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* used to emulate the old QMP server behavior that the current
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* command must be completed before execution of the next one.
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*/
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bool need_resume;
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};
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typedef struct QMPRequest QMPRequest;
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/* QMP checker flags */
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#define QMP_ACCEPT_UNKNOWNS 1
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/* Protects mon_list, monitor_event_state. */
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static QemuMutex monitor_lock;
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static QTAILQ_HEAD(mon_list, Monitor) mon_list;
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static QLIST_HEAD(mon_fdsets, MonFdset) mon_fdsets;
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static int mon_refcount;
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static mon_cmd_t mon_cmds[];
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static mon_cmd_t info_cmds[];
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QmpCommandList qmp_commands, qmp_cap_negotiation_commands;
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Monitor *cur_mon;
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static QEMUClockType event_clock_type = QEMU_CLOCK_REALTIME;
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static void monitor_command_cb(void *opaque, const char *cmdline,
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void *readline_opaque);
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/**
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* Is @mon a QMP monitor?
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*/
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static inline bool monitor_is_qmp(const Monitor *mon)
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{
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return (mon->flags & MONITOR_USE_CONTROL);
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}
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/**
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* Whether @mon is using readline? Note: not all HMP monitors use
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* readline, e.g., gdbserver has a non-interactive HMP monitor, so
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* readline is not used there.
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*/
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static inline bool monitor_uses_readline(const Monitor *mon)
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{
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return mon->flags & MONITOR_USE_READLINE;
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}
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static inline bool monitor_is_hmp_non_interactive(const Monitor *mon)
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{
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return !monitor_is_qmp(mon) && !monitor_uses_readline(mon);
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}
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/**
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* Is the current monitor, if any, a QMP monitor?
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*/
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bool monitor_cur_is_qmp(void)
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{
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return cur_mon && monitor_is_qmp(cur_mon);
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}
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void monitor_read_command(Monitor *mon, int show_prompt)
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{
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if (!mon->rs)
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return;
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readline_start(mon->rs, "(qemu) ", 0, monitor_command_cb, NULL);
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if (show_prompt)
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readline_show_prompt(mon->rs);
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}
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int monitor_read_password(Monitor *mon, ReadLineFunc *readline_func,
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void *opaque)
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{
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if (mon->rs) {
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readline_start(mon->rs, "Password: ", 1, readline_func, opaque);
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/* prompt is printed on return from the command handler */
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return 0;
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} else {
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monitor_printf(mon, "terminal does not support password prompting\n");
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return -ENOTTY;
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}
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}
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static void qmp_request_free(QMPRequest *req)
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{
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qobject_unref(req->id);
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qobject_unref(req->req);
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g_free(req);
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}
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/* Must with the mon->qmp.qmp_queue_lock held */
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static void monitor_qmp_cleanup_req_queue_locked(Monitor *mon)
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{
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while (!g_queue_is_empty(mon->qmp.qmp_requests)) {
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qmp_request_free(g_queue_pop_head(mon->qmp.qmp_requests));
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}
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}
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/* Must with the mon->qmp.qmp_queue_lock held */
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static void monitor_qmp_cleanup_resp_queue_locked(Monitor *mon)
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{
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while (!g_queue_is_empty(mon->qmp.qmp_responses)) {
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qobject_unref((QObject *)g_queue_pop_head(mon->qmp.qmp_responses));
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}
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}
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static void monitor_qmp_cleanup_queues(Monitor *mon)
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{
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qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
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monitor_qmp_cleanup_req_queue_locked(mon);
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monitor_qmp_cleanup_resp_queue_locked(mon);
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qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
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}
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static void monitor_flush_locked(Monitor *mon);
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static gboolean monitor_unblocked(GIOChannel *chan, GIOCondition cond,
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void *opaque)
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{
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Monitor *mon = opaque;
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qemu_mutex_lock(&mon->out_lock);
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mon->out_watch = 0;
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monitor_flush_locked(mon);
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qemu_mutex_unlock(&mon->out_lock);
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return FALSE;
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}
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/* Called with mon->out_lock held. */
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static void monitor_flush_locked(Monitor *mon)
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{
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int rc;
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size_t len;
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const char *buf;
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if (mon->skip_flush) {
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return;
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}
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buf = qstring_get_str(mon->outbuf);
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len = qstring_get_length(mon->outbuf);
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if (len && !mon->mux_out) {
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rc = qemu_chr_fe_write(&mon->chr, (const uint8_t *) buf, len);
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if ((rc < 0 && errno != EAGAIN) || (rc == len)) {
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/* all flushed or error */
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qobject_unref(mon->outbuf);
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mon->outbuf = qstring_new();
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return;
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}
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if (rc > 0) {
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/* partial write */
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QString *tmp = qstring_from_str(buf + rc);
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qobject_unref(mon->outbuf);
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mon->outbuf = tmp;
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}
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if (mon->out_watch == 0) {
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mon->out_watch =
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qemu_chr_fe_add_watch(&mon->chr, G_IO_OUT | G_IO_HUP,
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monitor_unblocked, mon);
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}
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}
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}
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void monitor_flush(Monitor *mon)
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{
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qemu_mutex_lock(&mon->out_lock);
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monitor_flush_locked(mon);
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qemu_mutex_unlock(&mon->out_lock);
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}
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/* flush at every end of line */
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static void monitor_puts(Monitor *mon, const char *str)
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{
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char c;
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qemu_mutex_lock(&mon->out_lock);
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for(;;) {
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c = *str++;
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if (c == '\0')
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break;
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if (c == '\n') {
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qstring_append_chr(mon->outbuf, '\r');
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}
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qstring_append_chr(mon->outbuf, c);
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if (c == '\n') {
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monitor_flush_locked(mon);
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}
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}
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qemu_mutex_unlock(&mon->out_lock);
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}
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void monitor_vprintf(Monitor *mon, const char *fmt, va_list ap)
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{
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char *buf;
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if (!mon)
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return;
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if (monitor_is_qmp(mon)) {
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return;
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}
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buf = g_strdup_vprintf(fmt, ap);
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monitor_puts(mon, buf);
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g_free(buf);
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}
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void monitor_printf(Monitor *mon, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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monitor_vprintf(mon, fmt, ap);
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va_end(ap);
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}
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int monitor_fprintf(FILE *stream, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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monitor_vprintf((Monitor *)stream, fmt, ap);
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va_end(ap);
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return 0;
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}
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static void monitor_json_emitter_raw(Monitor *mon,
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QObject *data)
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{
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QString *json;
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json = mon->flags & MONITOR_USE_PRETTY ? qobject_to_json_pretty(data) :
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qobject_to_json(data);
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assert(json != NULL);
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qstring_append_chr(json, '\n');
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monitor_puts(mon, qstring_get_str(json));
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qobject_unref(json);
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}
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static void monitor_json_emitter(Monitor *mon, QObject *data)
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{
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if (mon->use_io_thr) {
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/*
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* If using IO thread, we need to queue the item so that IO
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* thread will do the rest for us. Take refcount so that
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* caller won't free the data (which will be finally freed in
|
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* responder thread).
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*/
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qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
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g_queue_push_tail(mon->qmp.qmp_responses, qobject_ref(data));
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qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
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qemu_bh_schedule(mon_global.qmp_respond_bh);
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} else {
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/*
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* If not using monitor IO thread, then we are in main thread.
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* Do the emission right away.
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*/
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monitor_json_emitter_raw(mon, data);
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}
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}
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|
struct QMPResponse {
|
|
Monitor *mon;
|
|
QObject *data;
|
|
};
|
|
typedef struct QMPResponse QMPResponse;
|
|
|
|
/*
|
|
* Return one QMPResponse. The response is only valid if
|
|
* response.data is not NULL.
|
|
*/
|
|
static QMPResponse monitor_qmp_response_pop_one(void)
|
|
{
|
|
Monitor *mon;
|
|
QObject *data = NULL;
|
|
|
|
qemu_mutex_lock(&monitor_lock);
|
|
QTAILQ_FOREACH(mon, &mon_list, entry) {
|
|
qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
|
|
data = g_queue_pop_head(mon->qmp.qmp_responses);
|
|
qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
|
|
if (data) {
|
|
break;
|
|
}
|
|
}
|
|
qemu_mutex_unlock(&monitor_lock);
|
|
return (QMPResponse) { .mon = mon, .data = data };
|
|
}
|
|
|
|
static void monitor_qmp_bh_responder(void *opaque)
|
|
{
|
|
QMPResponse response;
|
|
|
|
while (true) {
|
|
response = monitor_qmp_response_pop_one();
|
|
if (!response.data) {
|
|
break;
|
|
}
|
|
monitor_json_emitter_raw(response.mon, response.data);
|
|
qobject_unref(response.data);
|
|
}
|
|
}
|
|
|
|
static MonitorQAPIEventConf monitor_qapi_event_conf[QAPI_EVENT__MAX] = {
|
|
/* Limit guest-triggerable events to 1 per second */
|
|
[QAPI_EVENT_RTC_CHANGE] = { 1000 * SCALE_MS },
|
|
[QAPI_EVENT_WATCHDOG] = { 1000 * SCALE_MS },
|
|
[QAPI_EVENT_BALLOON_CHANGE] = { 1000 * SCALE_MS },
|
|
[QAPI_EVENT_QUORUM_REPORT_BAD] = { 1000 * SCALE_MS },
|
|
[QAPI_EVENT_QUORUM_FAILURE] = { 1000 * SCALE_MS },
|
|
[QAPI_EVENT_VSERPORT_CHANGE] = { 1000 * SCALE_MS },
|
|
};
|
|
|
|
GHashTable *monitor_qapi_event_state;
|
|
|
|
/*
|
|
* Emits the event to every monitor instance, @event is only used for trace
|
|
* Called with monitor_lock held.
|
|
*/
|
|
static void monitor_qapi_event_emit(QAPIEvent event, QDict *qdict)
|
|
{
|
|
Monitor *mon;
|
|
|
|
trace_monitor_protocol_event_emit(event, qdict);
|
|
QTAILQ_FOREACH(mon, &mon_list, entry) {
|
|
if (monitor_is_qmp(mon)
|
|
&& mon->qmp.commands != &qmp_cap_negotiation_commands) {
|
|
monitor_json_emitter(mon, QOBJECT(qdict));
|
|
}
|
|
}
|
|
}
|
|
|
|
static void monitor_qapi_event_handler(void *opaque);
|
|
|
|
/*
|
|
* Queue a new event for emission to Monitor instances,
|
|
* applying any rate limiting if required.
|
|
*/
|
|
static void
|
|
monitor_qapi_event_queue(QAPIEvent event, QDict *qdict, Error **errp)
|
|
{
|
|
MonitorQAPIEventConf *evconf;
|
|
MonitorQAPIEventState *evstate;
|
|
|
|
assert(event < QAPI_EVENT__MAX);
|
|
evconf = &monitor_qapi_event_conf[event];
|
|
trace_monitor_protocol_event_queue(event, qdict, evconf->rate);
|
|
|
|
qemu_mutex_lock(&monitor_lock);
|
|
|
|
if (!evconf->rate) {
|
|
/* Unthrottled event */
|
|
monitor_qapi_event_emit(event, qdict);
|
|
} else {
|
|
QDict *data = qobject_to(QDict, qdict_get(qdict, "data"));
|
|
MonitorQAPIEventState key = { .event = event, .data = data };
|
|
|
|
evstate = g_hash_table_lookup(monitor_qapi_event_state, &key);
|
|
assert(!evstate || timer_pending(evstate->timer));
|
|
|
|
if (evstate) {
|
|
/*
|
|
* Timer is pending for (at least) evconf->rate ns after
|
|
* last send. Store event for sending when timer fires,
|
|
* replacing a prior stored event if any.
|
|
*/
|
|
qobject_unref(evstate->qdict);
|
|
evstate->qdict = qobject_ref(qdict);
|
|
} else {
|
|
/*
|
|
* Last send was (at least) evconf->rate ns ago.
|
|
* Send immediately, and arm the timer to call
|
|
* monitor_qapi_event_handler() in evconf->rate ns. Any
|
|
* events arriving before then will be delayed until then.
|
|
*/
|
|
int64_t now = qemu_clock_get_ns(event_clock_type);
|
|
|
|
monitor_qapi_event_emit(event, qdict);
|
|
|
|
evstate = g_new(MonitorQAPIEventState, 1);
|
|
evstate->event = event;
|
|
evstate->data = qobject_ref(data);
|
|
evstate->qdict = NULL;
|
|
evstate->timer = timer_new_ns(event_clock_type,
|
|
monitor_qapi_event_handler,
|
|
evstate);
|
|
g_hash_table_add(monitor_qapi_event_state, evstate);
|
|
timer_mod_ns(evstate->timer, now + evconf->rate);
|
|
}
|
|
}
|
|
|
|
qemu_mutex_unlock(&monitor_lock);
|
|
}
|
|
|
|
/*
|
|
* This function runs evconf->rate ns after sending a throttled
|
|
* event.
|
|
* If another event has since been stored, send it.
|
|
*/
|
|
static void monitor_qapi_event_handler(void *opaque)
|
|
{
|
|
MonitorQAPIEventState *evstate = opaque;
|
|
MonitorQAPIEventConf *evconf = &monitor_qapi_event_conf[evstate->event];
|
|
|
|
trace_monitor_protocol_event_handler(evstate->event, evstate->qdict);
|
|
qemu_mutex_lock(&monitor_lock);
|
|
|
|
if (evstate->qdict) {
|
|
int64_t now = qemu_clock_get_ns(event_clock_type);
|
|
|
|
monitor_qapi_event_emit(evstate->event, evstate->qdict);
|
|
qobject_unref(evstate->qdict);
|
|
evstate->qdict = NULL;
|
|
timer_mod_ns(evstate->timer, now + evconf->rate);
|
|
} else {
|
|
g_hash_table_remove(monitor_qapi_event_state, evstate);
|
|
qobject_unref(evstate->data);
|
|
timer_free(evstate->timer);
|
|
g_free(evstate);
|
|
}
|
|
|
|
qemu_mutex_unlock(&monitor_lock);
|
|
}
|
|
|
|
static unsigned int qapi_event_throttle_hash(const void *key)
|
|
{
|
|
const MonitorQAPIEventState *evstate = key;
|
|
unsigned int hash = evstate->event * 255;
|
|
|
|
if (evstate->event == QAPI_EVENT_VSERPORT_CHANGE) {
|
|
hash += g_str_hash(qdict_get_str(evstate->data, "id"));
|
|
}
|
|
|
|
if (evstate->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
|
|
hash += g_str_hash(qdict_get_str(evstate->data, "node-name"));
|
|
}
|
|
|
|
return hash;
|
|
}
|
|
|
|
static gboolean qapi_event_throttle_equal(const void *a, const void *b)
|
|
{
|
|
const MonitorQAPIEventState *eva = a;
|
|
const MonitorQAPIEventState *evb = b;
|
|
|
|
if (eva->event != evb->event) {
|
|
return FALSE;
|
|
}
|
|
|
|
if (eva->event == QAPI_EVENT_VSERPORT_CHANGE) {
|
|
return !strcmp(qdict_get_str(eva->data, "id"),
|
|
qdict_get_str(evb->data, "id"));
|
|
}
|
|
|
|
if (eva->event == QAPI_EVENT_QUORUM_REPORT_BAD) {
|
|
return !strcmp(qdict_get_str(eva->data, "node-name"),
|
|
qdict_get_str(evb->data, "node-name"));
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void monitor_qapi_event_init(void)
|
|
{
|
|
if (qtest_enabled()) {
|
|
event_clock_type = QEMU_CLOCK_VIRTUAL;
|
|
}
|
|
|
|
monitor_qapi_event_state = g_hash_table_new(qapi_event_throttle_hash,
|
|
qapi_event_throttle_equal);
|
|
qmp_event_set_func_emit(monitor_qapi_event_queue);
|
|
}
|
|
|
|
static void handle_hmp_command(Monitor *mon, const char *cmdline);
|
|
|
|
static void monitor_data_init(Monitor *mon, bool skip_flush,
|
|
bool use_io_thr)
|
|
{
|
|
memset(mon, 0, sizeof(Monitor));
|
|
qemu_mutex_init(&mon->out_lock);
|
|
qemu_mutex_init(&mon->qmp.qmp_queue_lock);
|
|
mon->outbuf = qstring_new();
|
|
/* Use *mon_cmds by default. */
|
|
mon->cmd_table = mon_cmds;
|
|
mon->skip_flush = skip_flush;
|
|
mon->use_io_thr = use_io_thr;
|
|
mon->qmp.qmp_requests = g_queue_new();
|
|
mon->qmp.qmp_responses = g_queue_new();
|
|
}
|
|
|
|
static void monitor_data_destroy(Monitor *mon)
|
|
{
|
|
g_free(mon->mon_cpu_path);
|
|
qemu_chr_fe_deinit(&mon->chr, false);
|
|
if (monitor_is_qmp(mon)) {
|
|
json_message_parser_destroy(&mon->qmp.parser);
|
|
}
|
|
readline_free(mon->rs);
|
|
qobject_unref(mon->outbuf);
|
|
qemu_mutex_destroy(&mon->out_lock);
|
|
qemu_mutex_destroy(&mon->qmp.qmp_queue_lock);
|
|
monitor_qmp_cleanup_req_queue_locked(mon);
|
|
monitor_qmp_cleanup_resp_queue_locked(mon);
|
|
g_queue_free(mon->qmp.qmp_requests);
|
|
g_queue_free(mon->qmp.qmp_responses);
|
|
}
|
|
|
|
char *qmp_human_monitor_command(const char *command_line, bool has_cpu_index,
|
|
int64_t cpu_index, Error **errp)
|
|
{
|
|
char *output = NULL;
|
|
Monitor *old_mon, hmp;
|
|
|
|
monitor_data_init(&hmp, true, false);
|
|
|
|
old_mon = cur_mon;
|
|
cur_mon = &hmp;
|
|
|
|
if (has_cpu_index) {
|
|
int ret = monitor_set_cpu(cpu_index);
|
|
if (ret < 0) {
|
|
cur_mon = old_mon;
|
|
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "cpu-index",
|
|
"a CPU number");
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
handle_hmp_command(&hmp, command_line);
|
|
cur_mon = old_mon;
|
|
|
|
qemu_mutex_lock(&hmp.out_lock);
|
|
if (qstring_get_length(hmp.outbuf) > 0) {
|
|
output = g_strdup(qstring_get_str(hmp.outbuf));
|
|
} else {
|
|
output = g_strdup("");
|
|
}
|
|
qemu_mutex_unlock(&hmp.out_lock);
|
|
|
|
out:
|
|
monitor_data_destroy(&hmp);
|
|
return output;
|
|
}
|
|
|
|
static int compare_cmd(const char *name, const char *list)
|
|
{
|
|
const char *p, *pstart;
|
|
int len;
|
|
len = strlen(name);
|
|
p = list;
|
|
for(;;) {
|
|
pstart = p;
|
|
p = strchr(p, '|');
|
|
if (!p)
|
|
p = pstart + strlen(pstart);
|
|
if ((p - pstart) == len && !memcmp(pstart, name, len))
|
|
return 1;
|
|
if (*p == '\0')
|
|
break;
|
|
p++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int get_str(char *buf, int buf_size, const char **pp)
|
|
{
|
|
const char *p;
|
|
char *q;
|
|
int c;
|
|
|
|
q = buf;
|
|
p = *pp;
|
|
while (qemu_isspace(*p)) {
|
|
p++;
|
|
}
|
|
if (*p == '\0') {
|
|
fail:
|
|
*q = '\0';
|
|
*pp = p;
|
|
return -1;
|
|
}
|
|
if (*p == '\"') {
|
|
p++;
|
|
while (*p != '\0' && *p != '\"') {
|
|
if (*p == '\\') {
|
|
p++;
|
|
c = *p++;
|
|
switch (c) {
|
|
case 'n':
|
|
c = '\n';
|
|
break;
|
|
case 'r':
|
|
c = '\r';
|
|
break;
|
|
case '\\':
|
|
case '\'':
|
|
case '\"':
|
|
break;
|
|
default:
|
|
printf("unsupported escape code: '\\%c'\n", c);
|
|
goto fail;
|
|
}
|
|
if ((q - buf) < buf_size - 1) {
|
|
*q++ = c;
|
|
}
|
|
} else {
|
|
if ((q - buf) < buf_size - 1) {
|
|
*q++ = *p;
|
|
}
|
|
p++;
|
|
}
|
|
}
|
|
if (*p != '\"') {
|
|
printf("unterminated string\n");
|
|
goto fail;
|
|
}
|
|
p++;
|
|
} else {
|
|
while (*p != '\0' && !qemu_isspace(*p)) {
|
|
if ((q - buf) < buf_size - 1) {
|
|
*q++ = *p;
|
|
}
|
|
p++;
|
|
}
|
|
}
|
|
*q = '\0';
|
|
*pp = p;
|
|
return 0;
|
|
}
|
|
|
|
#define MAX_ARGS 16
|
|
|
|
static void free_cmdline_args(char **args, int nb_args)
|
|
{
|
|
int i;
|
|
|
|
assert(nb_args <= MAX_ARGS);
|
|
|
|
for (i = 0; i < nb_args; i++) {
|
|
g_free(args[i]);
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
* Parse the command line to get valid args.
|
|
* @cmdline: command line to be parsed.
|
|
* @pnb_args: location to store the number of args, must NOT be NULL.
|
|
* @args: location to store the args, which should be freed by caller, must
|
|
* NOT be NULL.
|
|
*
|
|
* Returns 0 on success, negative on failure.
|
|
*
|
|
* NOTE: this parser is an approximate form of the real command parser. Number
|
|
* of args have a limit of MAX_ARGS. If cmdline contains more, it will
|
|
* return with failure.
|
|
*/
|
|
static int parse_cmdline(const char *cmdline,
|
|
int *pnb_args, char **args)
|
|
{
|
|
const char *p;
|
|
int nb_args, ret;
|
|
char buf[1024];
|
|
|
|
p = cmdline;
|
|
nb_args = 0;
|
|
for (;;) {
|
|
while (qemu_isspace(*p)) {
|
|
p++;
|
|
}
|
|
if (*p == '\0') {
|
|
break;
|
|
}
|
|
if (nb_args >= MAX_ARGS) {
|
|
goto fail;
|
|
}
|
|
ret = get_str(buf, sizeof(buf), &p);
|
|
if (ret < 0) {
|
|
goto fail;
|
|
}
|
|
args[nb_args] = g_strdup(buf);
|
|
nb_args++;
|
|
}
|
|
*pnb_args = nb_args;
|
|
return 0;
|
|
|
|
fail:
|
|
free_cmdline_args(args, nb_args);
|
|
return -1;
|
|
}
|
|
|
|
static void help_cmd_dump_one(Monitor *mon,
|
|
const mon_cmd_t *cmd,
|
|
char **prefix_args,
|
|
int prefix_args_nb)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < prefix_args_nb; i++) {
|
|
monitor_printf(mon, "%s ", prefix_args[i]);
|
|
}
|
|
monitor_printf(mon, "%s %s -- %s\n", cmd->name, cmd->params, cmd->help);
|
|
}
|
|
|
|
/* @args[@arg_index] is the valid command need to find in @cmds */
|
|
static void help_cmd_dump(Monitor *mon, const mon_cmd_t *cmds,
|
|
char **args, int nb_args, int arg_index)
|
|
{
|
|
const mon_cmd_t *cmd;
|
|
|
|
/* No valid arg need to compare with, dump all in *cmds */
|
|
if (arg_index >= nb_args) {
|
|
for (cmd = cmds; cmd->name != NULL; cmd++) {
|
|
help_cmd_dump_one(mon, cmd, args, arg_index);
|
|
}
|
|
return;
|
|
}
|
|
|
|
/* Find one entry to dump */
|
|
for (cmd = cmds; cmd->name != NULL; cmd++) {
|
|
if (compare_cmd(args[arg_index], cmd->name)) {
|
|
if (cmd->sub_table) {
|
|
/* continue with next arg */
|
|
help_cmd_dump(mon, cmd->sub_table,
|
|
args, nb_args, arg_index + 1);
|
|
} else {
|
|
help_cmd_dump_one(mon, cmd, args, arg_index);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void help_cmd(Monitor *mon, const char *name)
|
|
{
|
|
char *args[MAX_ARGS];
|
|
int nb_args = 0;
|
|
|
|
/* 1. parse user input */
|
|
if (name) {
|
|
/* special case for log, directly dump and return */
|
|
if (!strcmp(name, "log")) {
|
|
const QEMULogItem *item;
|
|
monitor_printf(mon, "Log items (comma separated):\n");
|
|
monitor_printf(mon, "%-10s %s\n", "none", "remove all logs");
|
|
for (item = qemu_log_items; item->mask != 0; item++) {
|
|
monitor_printf(mon, "%-10s %s\n", item->name, item->help);
|
|
}
|
|
return;
|
|
}
|
|
|
|
if (parse_cmdline(name, &nb_args, args) < 0) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* 2. dump the contents according to parsed args */
|
|
help_cmd_dump(mon, mon->cmd_table, args, nb_args, 0);
|
|
|
|
free_cmdline_args(args, nb_args);
|
|
}
|
|
|
|
static void do_help_cmd(Monitor *mon, const QDict *qdict)
|
|
{
|
|
help_cmd(mon, qdict_get_try_str(qdict, "name"));
|
|
}
|
|
|
|
static void hmp_trace_event(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *tp_name = qdict_get_str(qdict, "name");
|
|
bool new_state = qdict_get_bool(qdict, "option");
|
|
bool has_vcpu = qdict_haskey(qdict, "vcpu");
|
|
int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
|
|
Error *local_err = NULL;
|
|
|
|
if (vcpu < 0) {
|
|
monitor_printf(mon, "argument vcpu must be positive");
|
|
return;
|
|
}
|
|
|
|
qmp_trace_event_set_state(tp_name, new_state, true, true, has_vcpu, vcpu, &local_err);
|
|
if (local_err) {
|
|
error_report_err(local_err);
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_TRACE_SIMPLE
|
|
static void hmp_trace_file(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *op = qdict_get_try_str(qdict, "op");
|
|
const char *arg = qdict_get_try_str(qdict, "arg");
|
|
|
|
if (!op) {
|
|
st_print_trace_file_status((FILE *)mon, &monitor_fprintf);
|
|
} else if (!strcmp(op, "on")) {
|
|
st_set_trace_file_enabled(true);
|
|
} else if (!strcmp(op, "off")) {
|
|
st_set_trace_file_enabled(false);
|
|
} else if (!strcmp(op, "flush")) {
|
|
st_flush_trace_buffer();
|
|
} else if (!strcmp(op, "set")) {
|
|
if (arg) {
|
|
st_set_trace_file(arg);
|
|
}
|
|
} else {
|
|
monitor_printf(mon, "unexpected argument \"%s\"\n", op);
|
|
help_cmd(mon, "trace-file");
|
|
}
|
|
}
|
|
#endif
|
|
|
|
static void hmp_info_help(Monitor *mon, const QDict *qdict)
|
|
{
|
|
help_cmd(mon, "info");
|
|
}
|
|
|
|
static void query_commands_cb(QmpCommand *cmd, void *opaque)
|
|
{
|
|
CommandInfoList *info, **list = opaque;
|
|
|
|
if (!cmd->enabled) {
|
|
return;
|
|
}
|
|
|
|
info = g_malloc0(sizeof(*info));
|
|
info->value = g_malloc0(sizeof(*info->value));
|
|
info->value->name = g_strdup(cmd->name);
|
|
info->next = *list;
|
|
*list = info;
|
|
}
|
|
|
|
CommandInfoList *qmp_query_commands(Error **errp)
|
|
{
|
|
CommandInfoList *list = NULL;
|
|
|
|
qmp_for_each_command(cur_mon->qmp.commands, query_commands_cb, &list);
|
|
|
|
return list;
|
|
}
|
|
|
|
EventInfoList *qmp_query_events(Error **errp)
|
|
{
|
|
EventInfoList *info, *ev_list = NULL;
|
|
QAPIEvent e;
|
|
|
|
for (e = 0 ; e < QAPI_EVENT__MAX ; e++) {
|
|
const char *event_name = QAPIEvent_str(e);
|
|
assert(event_name != NULL);
|
|
info = g_malloc0(sizeof(*info));
|
|
info->value = g_malloc0(sizeof(*info->value));
|
|
info->value->name = g_strdup(event_name);
|
|
|
|
info->next = ev_list;
|
|
ev_list = info;
|
|
}
|
|
|
|
return ev_list;
|
|
}
|
|
|
|
/*
|
|
* Minor hack: generated marshalling suppressed for this command
|
|
* ('gen': false in the schema) so we can parse the JSON string
|
|
* directly into QObject instead of first parsing it with
|
|
* visit_type_SchemaInfoList() into a SchemaInfoList, then marshal it
|
|
* to QObject with generated output marshallers, every time. Instead,
|
|
* we do it in test-qobject-input-visitor.c, just to make sure
|
|
* qapi-gen.py's output actually conforms to the schema.
|
|
*/
|
|
static void qmp_query_qmp_schema(QDict *qdict, QObject **ret_data,
|
|
Error **errp)
|
|
{
|
|
*ret_data = qobject_from_qlit(&qmp_schema_qlit);
|
|
}
|
|
|
|
/*
|
|
* We used to define commands in qmp-commands.hx in addition to the
|
|
* QAPI schema. This permitted defining some of them only in certain
|
|
* configurations. query-commands has always reflected that (good,
|
|
* because it lets QMP clients figure out what's actually available),
|
|
* while query-qmp-schema never did (not so good). This function is a
|
|
* hack to keep the configuration-specific commands defined exactly as
|
|
* before, even though qmp-commands.hx is gone.
|
|
*
|
|
* FIXME Educate the QAPI schema on configuration-specific commands,
|
|
* and drop this hack.
|
|
*/
|
|
static void qmp_unregister_commands_hack(void)
|
|
{
|
|
#ifndef CONFIG_SPICE
|
|
qmp_unregister_command(&qmp_commands, "query-spice");
|
|
#endif
|
|
#ifndef CONFIG_REPLICATION
|
|
qmp_unregister_command(&qmp_commands, "xen-set-replication");
|
|
qmp_unregister_command(&qmp_commands, "query-xen-replication-status");
|
|
qmp_unregister_command(&qmp_commands, "xen-colo-do-checkpoint");
|
|
#endif
|
|
#ifndef TARGET_I386
|
|
qmp_unregister_command(&qmp_commands, "rtc-reset-reinjection");
|
|
qmp_unregister_command(&qmp_commands, "query-sev");
|
|
qmp_unregister_command(&qmp_commands, "query-sev-launch-measure");
|
|
qmp_unregister_command(&qmp_commands, "query-sev-capabilities");
|
|
#endif
|
|
#ifndef TARGET_S390X
|
|
qmp_unregister_command(&qmp_commands, "dump-skeys");
|
|
#endif
|
|
#ifndef TARGET_ARM
|
|
qmp_unregister_command(&qmp_commands, "query-gic-capabilities");
|
|
#endif
|
|
#if !defined(TARGET_S390X) && !defined(TARGET_I386)
|
|
qmp_unregister_command(&qmp_commands, "query-cpu-model-expansion");
|
|
#endif
|
|
#if !defined(TARGET_S390X)
|
|
qmp_unregister_command(&qmp_commands, "query-cpu-model-baseline");
|
|
qmp_unregister_command(&qmp_commands, "query-cpu-model-comparison");
|
|
#endif
|
|
#if !defined(TARGET_PPC) && !defined(TARGET_ARM) && !defined(TARGET_I386) \
|
|
&& !defined(TARGET_S390X)
|
|
qmp_unregister_command(&qmp_commands, "query-cpu-definitions");
|
|
#endif
|
|
}
|
|
|
|
static void monitor_init_qmp_commands(void)
|
|
{
|
|
/*
|
|
* Two command lists:
|
|
* - qmp_commands contains all QMP commands
|
|
* - qmp_cap_negotiation_commands contains just
|
|
* "qmp_capabilities", to enforce capability negotiation
|
|
*/
|
|
|
|
qmp_init_marshal(&qmp_commands);
|
|
|
|
qmp_register_command(&qmp_commands, "query-qmp-schema",
|
|
qmp_query_qmp_schema,
|
|
QCO_NO_OPTIONS);
|
|
qmp_register_command(&qmp_commands, "device_add", qmp_device_add,
|
|
QCO_NO_OPTIONS);
|
|
qmp_register_command(&qmp_commands, "netdev_add", qmp_netdev_add,
|
|
QCO_NO_OPTIONS);
|
|
|
|
qmp_unregister_commands_hack();
|
|
|
|
QTAILQ_INIT(&qmp_cap_negotiation_commands);
|
|
qmp_register_command(&qmp_cap_negotiation_commands, "qmp_capabilities",
|
|
qmp_marshal_qmp_capabilities, QCO_NO_OPTIONS);
|
|
}
|
|
|
|
static bool qmp_cap_enabled(Monitor *mon, QMPCapability cap)
|
|
{
|
|
return mon->qmp.qmp_caps[cap];
|
|
}
|
|
|
|
static bool qmp_oob_enabled(Monitor *mon)
|
|
{
|
|
return qmp_cap_enabled(mon, QMP_CAPABILITY_OOB);
|
|
}
|
|
|
|
static void qmp_caps_check(Monitor *mon, QMPCapabilityList *list,
|
|
Error **errp)
|
|
{
|
|
for (; list; list = list->next) {
|
|
assert(list->value < QMP_CAPABILITY__MAX);
|
|
switch (list->value) {
|
|
case QMP_CAPABILITY_OOB:
|
|
if (!mon->use_io_thr) {
|
|
/*
|
|
* Out-Of-Band only works with monitors that are
|
|
* running on dedicated IOThread.
|
|
*/
|
|
error_setg(errp, "This monitor does not support "
|
|
"Out-Of-Band (OOB)");
|
|
return;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* This function should only be called after capabilities are checked. */
|
|
static void qmp_caps_apply(Monitor *mon, QMPCapabilityList *list)
|
|
{
|
|
for (; list; list = list->next) {
|
|
mon->qmp.qmp_caps[list->value] = true;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Return true if check successful, or false otherwise. When false is
|
|
* returned, detailed error will be in errp if provided.
|
|
*/
|
|
static bool qmp_cmd_oob_check(Monitor *mon, QDict *req, Error **errp)
|
|
{
|
|
const char *command;
|
|
QmpCommand *cmd;
|
|
|
|
command = qdict_get_try_str(req, "execute");
|
|
if (!command) {
|
|
error_setg(errp, "Command field 'execute' missing");
|
|
return false;
|
|
}
|
|
|
|
cmd = qmp_find_command(mon->qmp.commands, command);
|
|
if (!cmd) {
|
|
if (mon->qmp.commands == &qmp_cap_negotiation_commands) {
|
|
error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
|
|
"Expecting capabilities negotiation "
|
|
"with 'qmp_capabilities'");
|
|
} else {
|
|
error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
|
|
"The command %s has not been found", command);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
if (qmp_is_oob(req)) {
|
|
if (!qmp_oob_enabled(mon)) {
|
|
error_setg(errp, "Please enable Out-Of-Band first "
|
|
"for the session during capabilities negotiation");
|
|
return false;
|
|
}
|
|
if (!(cmd->options & QCO_ALLOW_OOB)) {
|
|
error_setg(errp, "The command %s does not support OOB",
|
|
command);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void qmp_qmp_capabilities(bool has_enable, QMPCapabilityList *enable,
|
|
Error **errp)
|
|
{
|
|
Error *local_err = NULL;
|
|
|
|
if (cur_mon->qmp.commands == &qmp_commands) {
|
|
error_set(errp, ERROR_CLASS_COMMAND_NOT_FOUND,
|
|
"Capabilities negotiation is already complete, command "
|
|
"ignored");
|
|
return;
|
|
}
|
|
|
|
/* Enable QMP capabilities provided by the client if applicable. */
|
|
if (has_enable) {
|
|
qmp_caps_check(cur_mon, enable, &local_err);
|
|
if (local_err) {
|
|
/*
|
|
* Failed check on any of the capabilities will fail the
|
|
* entire command (and thus not apply any of the other
|
|
* capabilities that were also requested).
|
|
*/
|
|
error_propagate(errp, local_err);
|
|
return;
|
|
}
|
|
qmp_caps_apply(cur_mon, enable);
|
|
}
|
|
|
|
cur_mon->qmp.commands = &qmp_commands;
|
|
}
|
|
|
|
/* set the current CPU defined by the user */
|
|
int monitor_set_cpu(int cpu_index)
|
|
{
|
|
CPUState *cpu;
|
|
|
|
cpu = qemu_get_cpu(cpu_index);
|
|
if (cpu == NULL) {
|
|
return -1;
|
|
}
|
|
g_free(cur_mon->mon_cpu_path);
|
|
cur_mon->mon_cpu_path = object_get_canonical_path(OBJECT(cpu));
|
|
return 0;
|
|
}
|
|
|
|
static CPUState *mon_get_cpu_sync(bool synchronize)
|
|
{
|
|
CPUState *cpu;
|
|
|
|
if (cur_mon->mon_cpu_path) {
|
|
cpu = (CPUState *) object_resolve_path_type(cur_mon->mon_cpu_path,
|
|
TYPE_CPU, NULL);
|
|
if (!cpu) {
|
|
g_free(cur_mon->mon_cpu_path);
|
|
cur_mon->mon_cpu_path = NULL;
|
|
}
|
|
}
|
|
if (!cur_mon->mon_cpu_path) {
|
|
if (!first_cpu) {
|
|
return NULL;
|
|
}
|
|
monitor_set_cpu(first_cpu->cpu_index);
|
|
cpu = first_cpu;
|
|
}
|
|
if (synchronize) {
|
|
cpu_synchronize_state(cpu);
|
|
}
|
|
return cpu;
|
|
}
|
|
|
|
CPUState *mon_get_cpu(void)
|
|
{
|
|
return mon_get_cpu_sync(true);
|
|
}
|
|
|
|
CPUArchState *mon_get_cpu_env(void)
|
|
{
|
|
CPUState *cs = mon_get_cpu();
|
|
|
|
return cs ? cs->env_ptr : NULL;
|
|
}
|
|
|
|
int monitor_get_cpu_index(void)
|
|
{
|
|
CPUState *cs = mon_get_cpu_sync(false);
|
|
|
|
return cs ? cs->cpu_index : UNASSIGNED_CPU_INDEX;
|
|
}
|
|
|
|
static void hmp_info_registers(Monitor *mon, const QDict *qdict)
|
|
{
|
|
bool all_cpus = qdict_get_try_bool(qdict, "cpustate_all", false);
|
|
CPUState *cs;
|
|
|
|
if (all_cpus) {
|
|
CPU_FOREACH(cs) {
|
|
monitor_printf(mon, "\nCPU#%d\n", cs->cpu_index);
|
|
cpu_dump_state(cs, (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
|
|
}
|
|
} else {
|
|
cs = mon_get_cpu();
|
|
|
|
if (!cs) {
|
|
monitor_printf(mon, "No CPU available\n");
|
|
return;
|
|
}
|
|
|
|
cpu_dump_state(cs, (FILE *)mon, monitor_fprintf, CPU_DUMP_FPU);
|
|
}
|
|
}
|
|
|
|
#ifdef CONFIG_TCG
|
|
static void hmp_info_jit(Monitor *mon, const QDict *qdict)
|
|
{
|
|
if (!tcg_enabled()) {
|
|
error_report("JIT information is only available with accel=tcg");
|
|
return;
|
|
}
|
|
|
|
dump_exec_info((FILE *)mon, monitor_fprintf);
|
|
dump_drift_info((FILE *)mon, monitor_fprintf);
|
|
}
|
|
|
|
static void hmp_info_opcount(Monitor *mon, const QDict *qdict)
|
|
{
|
|
dump_opcount_info((FILE *)mon, monitor_fprintf);
|
|
}
|
|
#endif
|
|
|
|
static void hmp_info_history(Monitor *mon, const QDict *qdict)
|
|
{
|
|
int i;
|
|
const char *str;
|
|
|
|
if (!mon->rs)
|
|
return;
|
|
i = 0;
|
|
for(;;) {
|
|
str = readline_get_history(mon->rs, i);
|
|
if (!str)
|
|
break;
|
|
monitor_printf(mon, "%d: '%s'\n", i, str);
|
|
i++;
|
|
}
|
|
}
|
|
|
|
static void hmp_info_cpustats(Monitor *mon, const QDict *qdict)
|
|
{
|
|
CPUState *cs = mon_get_cpu();
|
|
|
|
if (!cs) {
|
|
monitor_printf(mon, "No CPU available\n");
|
|
return;
|
|
}
|
|
cpu_dump_statistics(cs, (FILE *)mon, &monitor_fprintf, 0);
|
|
}
|
|
|
|
static void hmp_info_trace_events(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *name = qdict_get_try_str(qdict, "name");
|
|
bool has_vcpu = qdict_haskey(qdict, "vcpu");
|
|
int vcpu = qdict_get_try_int(qdict, "vcpu", 0);
|
|
TraceEventInfoList *events;
|
|
TraceEventInfoList *elem;
|
|
Error *local_err = NULL;
|
|
|
|
if (name == NULL) {
|
|
name = "*";
|
|
}
|
|
if (vcpu < 0) {
|
|
monitor_printf(mon, "argument vcpu must be positive");
|
|
return;
|
|
}
|
|
|
|
events = qmp_trace_event_get_state(name, has_vcpu, vcpu, &local_err);
|
|
if (local_err) {
|
|
error_report_err(local_err);
|
|
return;
|
|
}
|
|
|
|
for (elem = events; elem != NULL; elem = elem->next) {
|
|
monitor_printf(mon, "%s : state %u\n",
|
|
elem->value->name,
|
|
elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0);
|
|
}
|
|
qapi_free_TraceEventInfoList(events);
|
|
}
|
|
|
|
void qmp_client_migrate_info(const char *protocol, const char *hostname,
|
|
bool has_port, int64_t port,
|
|
bool has_tls_port, int64_t tls_port,
|
|
bool has_cert_subject, const char *cert_subject,
|
|
Error **errp)
|
|
{
|
|
if (strcmp(protocol, "spice") == 0) {
|
|
if (!qemu_using_spice(errp)) {
|
|
return;
|
|
}
|
|
|
|
if (!has_port && !has_tls_port) {
|
|
error_setg(errp, QERR_MISSING_PARAMETER, "port/tls-port");
|
|
return;
|
|
}
|
|
|
|
if (qemu_spice_migrate_info(hostname,
|
|
has_port ? port : -1,
|
|
has_tls_port ? tls_port : -1,
|
|
cert_subject)) {
|
|
error_setg(errp, QERR_UNDEFINED_ERROR);
|
|
return;
|
|
}
|
|
return;
|
|
}
|
|
|
|
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "protocol", "spice");
|
|
}
|
|
|
|
static void hmp_logfile(Monitor *mon, const QDict *qdict)
|
|
{
|
|
Error *err = NULL;
|
|
|
|
qemu_set_log_filename(qdict_get_str(qdict, "filename"), &err);
|
|
if (err) {
|
|
error_report_err(err);
|
|
}
|
|
}
|
|
|
|
static void hmp_log(Monitor *mon, const QDict *qdict)
|
|
{
|
|
int mask;
|
|
const char *items = qdict_get_str(qdict, "items");
|
|
|
|
if (!strcmp(items, "none")) {
|
|
mask = 0;
|
|
} else {
|
|
mask = qemu_str_to_log_mask(items);
|
|
if (!mask) {
|
|
help_cmd(mon, "log");
|
|
return;
|
|
}
|
|
}
|
|
qemu_set_log(mask);
|
|
}
|
|
|
|
static void hmp_singlestep(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *option = qdict_get_try_str(qdict, "option");
|
|
if (!option || !strcmp(option, "on")) {
|
|
singlestep = 1;
|
|
} else if (!strcmp(option, "off")) {
|
|
singlestep = 0;
|
|
} else {
|
|
monitor_printf(mon, "unexpected option %s\n", option);
|
|
}
|
|
}
|
|
|
|
static void hmp_gdbserver(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *device = qdict_get_try_str(qdict, "device");
|
|
if (!device)
|
|
device = "tcp::" DEFAULT_GDBSTUB_PORT;
|
|
if (gdbserver_start(device) < 0) {
|
|
monitor_printf(mon, "Could not open gdbserver on device '%s'\n",
|
|
device);
|
|
} else if (strcmp(device, "none") == 0) {
|
|
monitor_printf(mon, "Disabled gdbserver\n");
|
|
} else {
|
|
monitor_printf(mon, "Waiting for gdb connection on device '%s'\n",
|
|
device);
|
|
}
|
|
}
|
|
|
|
static void hmp_watchdog_action(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *action = qdict_get_str(qdict, "action");
|
|
if (select_watchdog_action(action) == -1) {
|
|
monitor_printf(mon, "Unknown watchdog action '%s'\n", action);
|
|
}
|
|
}
|
|
|
|
static void monitor_printc(Monitor *mon, int c)
|
|
{
|
|
monitor_printf(mon, "'");
|
|
switch(c) {
|
|
case '\'':
|
|
monitor_printf(mon, "\\'");
|
|
break;
|
|
case '\\':
|
|
monitor_printf(mon, "\\\\");
|
|
break;
|
|
case '\n':
|
|
monitor_printf(mon, "\\n");
|
|
break;
|
|
case '\r':
|
|
monitor_printf(mon, "\\r");
|
|
break;
|
|
default:
|
|
if (c >= 32 && c <= 126) {
|
|
monitor_printf(mon, "%c", c);
|
|
} else {
|
|
monitor_printf(mon, "\\x%02x", c);
|
|
}
|
|
break;
|
|
}
|
|
monitor_printf(mon, "'");
|
|
}
|
|
|
|
static void memory_dump(Monitor *mon, int count, int format, int wsize,
|
|
hwaddr addr, int is_physical)
|
|
{
|
|
int l, line_size, i, max_digits, len;
|
|
uint8_t buf[16];
|
|
uint64_t v;
|
|
CPUState *cs = mon_get_cpu();
|
|
|
|
if (!cs && (format == 'i' || !is_physical)) {
|
|
monitor_printf(mon, "Can not dump without CPU\n");
|
|
return;
|
|
}
|
|
|
|
if (format == 'i') {
|
|
monitor_disas(mon, cs, addr, count, is_physical);
|
|
return;
|
|
}
|
|
|
|
len = wsize * count;
|
|
if (wsize == 1)
|
|
line_size = 8;
|
|
else
|
|
line_size = 16;
|
|
max_digits = 0;
|
|
|
|
switch(format) {
|
|
case 'o':
|
|
max_digits = DIV_ROUND_UP(wsize * 8, 3);
|
|
break;
|
|
default:
|
|
case 'x':
|
|
max_digits = (wsize * 8) / 4;
|
|
break;
|
|
case 'u':
|
|
case 'd':
|
|
max_digits = DIV_ROUND_UP(wsize * 8 * 10, 33);
|
|
break;
|
|
case 'c':
|
|
wsize = 1;
|
|
break;
|
|
}
|
|
|
|
while (len > 0) {
|
|
if (is_physical)
|
|
monitor_printf(mon, TARGET_FMT_plx ":", addr);
|
|
else
|
|
monitor_printf(mon, TARGET_FMT_lx ":", (target_ulong)addr);
|
|
l = len;
|
|
if (l > line_size)
|
|
l = line_size;
|
|
if (is_physical) {
|
|
cpu_physical_memory_read(addr, buf, l);
|
|
} else {
|
|
if (cpu_memory_rw_debug(cs, addr, buf, l, 0) < 0) {
|
|
monitor_printf(mon, " Cannot access memory\n");
|
|
break;
|
|
}
|
|
}
|
|
i = 0;
|
|
while (i < l) {
|
|
switch(wsize) {
|
|
default:
|
|
case 1:
|
|
v = ldub_p(buf + i);
|
|
break;
|
|
case 2:
|
|
v = lduw_p(buf + i);
|
|
break;
|
|
case 4:
|
|
v = (uint32_t)ldl_p(buf + i);
|
|
break;
|
|
case 8:
|
|
v = ldq_p(buf + i);
|
|
break;
|
|
}
|
|
monitor_printf(mon, " ");
|
|
switch(format) {
|
|
case 'o':
|
|
monitor_printf(mon, "%#*" PRIo64, max_digits, v);
|
|
break;
|
|
case 'x':
|
|
monitor_printf(mon, "0x%0*" PRIx64, max_digits, v);
|
|
break;
|
|
case 'u':
|
|
monitor_printf(mon, "%*" PRIu64, max_digits, v);
|
|
break;
|
|
case 'd':
|
|
monitor_printf(mon, "%*" PRId64, max_digits, v);
|
|
break;
|
|
case 'c':
|
|
monitor_printc(mon, v);
|
|
break;
|
|
}
|
|
i += wsize;
|
|
}
|
|
monitor_printf(mon, "\n");
|
|
addr += l;
|
|
len -= l;
|
|
}
|
|
}
|
|
|
|
static void hmp_memory_dump(Monitor *mon, const QDict *qdict)
|
|
{
|
|
int count = qdict_get_int(qdict, "count");
|
|
int format = qdict_get_int(qdict, "format");
|
|
int size = qdict_get_int(qdict, "size");
|
|
target_long addr = qdict_get_int(qdict, "addr");
|
|
|
|
memory_dump(mon, count, format, size, addr, 0);
|
|
}
|
|
|
|
static void hmp_physical_memory_dump(Monitor *mon, const QDict *qdict)
|
|
{
|
|
int count = qdict_get_int(qdict, "count");
|
|
int format = qdict_get_int(qdict, "format");
|
|
int size = qdict_get_int(qdict, "size");
|
|
hwaddr addr = qdict_get_int(qdict, "addr");
|
|
|
|
memory_dump(mon, count, format, size, addr, 1);
|
|
}
|
|
|
|
static void *gpa2hva(MemoryRegion **p_mr, hwaddr addr, Error **errp)
|
|
{
|
|
MemoryRegionSection mrs = memory_region_find(get_system_memory(),
|
|
addr, 1);
|
|
|
|
if (!mrs.mr) {
|
|
error_setg(errp, "No memory is mapped at address 0x%" HWADDR_PRIx, addr);
|
|
return NULL;
|
|
}
|
|
|
|
if (!memory_region_is_ram(mrs.mr) && !memory_region_is_romd(mrs.mr)) {
|
|
error_setg(errp, "Memory at address 0x%" HWADDR_PRIx "is not RAM", addr);
|
|
memory_region_unref(mrs.mr);
|
|
return NULL;
|
|
}
|
|
|
|
*p_mr = mrs.mr;
|
|
return qemu_map_ram_ptr(mrs.mr->ram_block, mrs.offset_within_region);
|
|
}
|
|
|
|
static void hmp_gpa2hva(Monitor *mon, const QDict *qdict)
|
|
{
|
|
hwaddr addr = qdict_get_int(qdict, "addr");
|
|
Error *local_err = NULL;
|
|
MemoryRegion *mr = NULL;
|
|
void *ptr;
|
|
|
|
ptr = gpa2hva(&mr, addr, &local_err);
|
|
if (local_err) {
|
|
error_report_err(local_err);
|
|
return;
|
|
}
|
|
|
|
monitor_printf(mon, "Host virtual address for 0x%" HWADDR_PRIx
|
|
" (%s) is %p\n",
|
|
addr, mr->name, ptr);
|
|
|
|
memory_region_unref(mr);
|
|
}
|
|
|
|
#ifdef CONFIG_LINUX
|
|
static uint64_t vtop(void *ptr, Error **errp)
|
|
{
|
|
uint64_t pinfo;
|
|
uint64_t ret = -1;
|
|
uintptr_t addr = (uintptr_t) ptr;
|
|
uintptr_t pagesize = getpagesize();
|
|
off_t offset = addr / pagesize * sizeof(pinfo);
|
|
int fd;
|
|
|
|
fd = open("/proc/self/pagemap", O_RDONLY);
|
|
if (fd == -1) {
|
|
error_setg_errno(errp, errno, "Cannot open /proc/self/pagemap");
|
|
return -1;
|
|
}
|
|
|
|
/* Force copy-on-write if necessary. */
|
|
atomic_add((uint8_t *)ptr, 0);
|
|
|
|
if (pread(fd, &pinfo, sizeof(pinfo), offset) != sizeof(pinfo)) {
|
|
error_setg_errno(errp, errno, "Cannot read pagemap");
|
|
goto out;
|
|
}
|
|
if ((pinfo & (1ull << 63)) == 0) {
|
|
error_setg(errp, "Page not present");
|
|
goto out;
|
|
}
|
|
ret = ((pinfo & 0x007fffffffffffffull) * pagesize) | (addr & (pagesize - 1));
|
|
|
|
out:
|
|
close(fd);
|
|
return ret;
|
|
}
|
|
|
|
static void hmp_gpa2hpa(Monitor *mon, const QDict *qdict)
|
|
{
|
|
hwaddr addr = qdict_get_int(qdict, "addr");
|
|
Error *local_err = NULL;
|
|
MemoryRegion *mr = NULL;
|
|
void *ptr;
|
|
uint64_t physaddr;
|
|
|
|
ptr = gpa2hva(&mr, addr, &local_err);
|
|
if (local_err) {
|
|
error_report_err(local_err);
|
|
return;
|
|
}
|
|
|
|
physaddr = vtop(ptr, &local_err);
|
|
if (local_err) {
|
|
error_report_err(local_err);
|
|
} else {
|
|
monitor_printf(mon, "Host physical address for 0x%" HWADDR_PRIx
|
|
" (%s) is 0x%" PRIx64 "\n",
|
|
addr, mr->name, (uint64_t) physaddr);
|
|
}
|
|
|
|
memory_region_unref(mr);
|
|
}
|
|
#endif
|
|
|
|
static void do_print(Monitor *mon, const QDict *qdict)
|
|
{
|
|
int format = qdict_get_int(qdict, "format");
|
|
hwaddr val = qdict_get_int(qdict, "val");
|
|
|
|
switch(format) {
|
|
case 'o':
|
|
monitor_printf(mon, "%#" HWADDR_PRIo, val);
|
|
break;
|
|
case 'x':
|
|
monitor_printf(mon, "%#" HWADDR_PRIx, val);
|
|
break;
|
|
case 'u':
|
|
monitor_printf(mon, "%" HWADDR_PRIu, val);
|
|
break;
|
|
default:
|
|
case 'd':
|
|
monitor_printf(mon, "%" HWADDR_PRId, val);
|
|
break;
|
|
case 'c':
|
|
monitor_printc(mon, val);
|
|
break;
|
|
}
|
|
monitor_printf(mon, "\n");
|
|
}
|
|
|
|
static void hmp_sum(Monitor *mon, const QDict *qdict)
|
|
{
|
|
uint32_t addr;
|
|
uint16_t sum;
|
|
uint32_t start = qdict_get_int(qdict, "start");
|
|
uint32_t size = qdict_get_int(qdict, "size");
|
|
|
|
sum = 0;
|
|
for(addr = start; addr < (start + size); addr++) {
|
|
uint8_t val = address_space_ldub(&address_space_memory, addr,
|
|
MEMTXATTRS_UNSPECIFIED, NULL);
|
|
/* BSD sum algorithm ('sum' Unix command) */
|
|
sum = (sum >> 1) | (sum << 15);
|
|
sum += val;
|
|
}
|
|
monitor_printf(mon, "%05d\n", sum);
|
|
}
|
|
|
|
static int mouse_button_state;
|
|
|
|
static void hmp_mouse_move(Monitor *mon, const QDict *qdict)
|
|
{
|
|
int dx, dy, dz, button;
|
|
const char *dx_str = qdict_get_str(qdict, "dx_str");
|
|
const char *dy_str = qdict_get_str(qdict, "dy_str");
|
|
const char *dz_str = qdict_get_try_str(qdict, "dz_str");
|
|
|
|
dx = strtol(dx_str, NULL, 0);
|
|
dy = strtol(dy_str, NULL, 0);
|
|
qemu_input_queue_rel(NULL, INPUT_AXIS_X, dx);
|
|
qemu_input_queue_rel(NULL, INPUT_AXIS_Y, dy);
|
|
|
|
if (dz_str) {
|
|
dz = strtol(dz_str, NULL, 0);
|
|
if (dz != 0) {
|
|
button = (dz > 0) ? INPUT_BUTTON_WHEEL_UP : INPUT_BUTTON_WHEEL_DOWN;
|
|
qemu_input_queue_btn(NULL, button, true);
|
|
qemu_input_event_sync();
|
|
qemu_input_queue_btn(NULL, button, false);
|
|
}
|
|
}
|
|
qemu_input_event_sync();
|
|
}
|
|
|
|
static void hmp_mouse_button(Monitor *mon, const QDict *qdict)
|
|
{
|
|
static uint32_t bmap[INPUT_BUTTON__MAX] = {
|
|
[INPUT_BUTTON_LEFT] = MOUSE_EVENT_LBUTTON,
|
|
[INPUT_BUTTON_MIDDLE] = MOUSE_EVENT_MBUTTON,
|
|
[INPUT_BUTTON_RIGHT] = MOUSE_EVENT_RBUTTON,
|
|
};
|
|
int button_state = qdict_get_int(qdict, "button_state");
|
|
|
|
if (mouse_button_state == button_state) {
|
|
return;
|
|
}
|
|
qemu_input_update_buttons(NULL, bmap, mouse_button_state, button_state);
|
|
qemu_input_event_sync();
|
|
mouse_button_state = button_state;
|
|
}
|
|
|
|
static void hmp_ioport_read(Monitor *mon, const QDict *qdict)
|
|
{
|
|
int size = qdict_get_int(qdict, "size");
|
|
int addr = qdict_get_int(qdict, "addr");
|
|
int has_index = qdict_haskey(qdict, "index");
|
|
uint32_t val;
|
|
int suffix;
|
|
|
|
if (has_index) {
|
|
int index = qdict_get_int(qdict, "index");
|
|
cpu_outb(addr & IOPORTS_MASK, index & 0xff);
|
|
addr++;
|
|
}
|
|
addr &= 0xffff;
|
|
|
|
switch(size) {
|
|
default:
|
|
case 1:
|
|
val = cpu_inb(addr);
|
|
suffix = 'b';
|
|
break;
|
|
case 2:
|
|
val = cpu_inw(addr);
|
|
suffix = 'w';
|
|
break;
|
|
case 4:
|
|
val = cpu_inl(addr);
|
|
suffix = 'l';
|
|
break;
|
|
}
|
|
monitor_printf(mon, "port%c[0x%04x] = %#0*x\n",
|
|
suffix, addr, size * 2, val);
|
|
}
|
|
|
|
static void hmp_ioport_write(Monitor *mon, const QDict *qdict)
|
|
{
|
|
int size = qdict_get_int(qdict, "size");
|
|
int addr = qdict_get_int(qdict, "addr");
|
|
int val = qdict_get_int(qdict, "val");
|
|
|
|
addr &= IOPORTS_MASK;
|
|
|
|
switch (size) {
|
|
default:
|
|
case 1:
|
|
cpu_outb(addr, val);
|
|
break;
|
|
case 2:
|
|
cpu_outw(addr, val);
|
|
break;
|
|
case 4:
|
|
cpu_outl(addr, val);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void hmp_boot_set(Monitor *mon, const QDict *qdict)
|
|
{
|
|
Error *local_err = NULL;
|
|
const char *bootdevice = qdict_get_str(qdict, "bootdevice");
|
|
|
|
qemu_boot_set(bootdevice, &local_err);
|
|
if (local_err) {
|
|
error_report_err(local_err);
|
|
} else {
|
|
monitor_printf(mon, "boot device list now set to %s\n", bootdevice);
|
|
}
|
|
}
|
|
|
|
static void hmp_info_mtree(Monitor *mon, const QDict *qdict)
|
|
{
|
|
bool flatview = qdict_get_try_bool(qdict, "flatview", false);
|
|
bool dispatch_tree = qdict_get_try_bool(qdict, "dispatch_tree", false);
|
|
|
|
mtree_info((fprintf_function)monitor_printf, mon, flatview, dispatch_tree);
|
|
}
|
|
|
|
static void hmp_info_numa(Monitor *mon, const QDict *qdict)
|
|
{
|
|
int i;
|
|
NumaNodeMem *node_mem;
|
|
CpuInfoList *cpu_list, *cpu;
|
|
|
|
cpu_list = qmp_query_cpus(&error_abort);
|
|
node_mem = g_new0(NumaNodeMem, nb_numa_nodes);
|
|
|
|
query_numa_node_mem(node_mem);
|
|
monitor_printf(mon, "%d nodes\n", nb_numa_nodes);
|
|
for (i = 0; i < nb_numa_nodes; i++) {
|
|
monitor_printf(mon, "node %d cpus:", i);
|
|
for (cpu = cpu_list; cpu; cpu = cpu->next) {
|
|
if (cpu->value->has_props && cpu->value->props->has_node_id &&
|
|
cpu->value->props->node_id == i) {
|
|
monitor_printf(mon, " %" PRIi64, cpu->value->CPU);
|
|
}
|
|
}
|
|
monitor_printf(mon, "\n");
|
|
monitor_printf(mon, "node %d size: %" PRId64 " MB\n", i,
|
|
node_mem[i].node_mem >> 20);
|
|
monitor_printf(mon, "node %d plugged: %" PRId64 " MB\n", i,
|
|
node_mem[i].node_plugged_mem >> 20);
|
|
}
|
|
qapi_free_CpuInfoList(cpu_list);
|
|
g_free(node_mem);
|
|
}
|
|
|
|
#ifdef CONFIG_PROFILER
|
|
|
|
int64_t tcg_time;
|
|
int64_t dev_time;
|
|
|
|
static void hmp_info_profile(Monitor *mon, const QDict *qdict)
|
|
{
|
|
monitor_printf(mon, "async time %" PRId64 " (%0.3f)\n",
|
|
dev_time, dev_time / (double)NANOSECONDS_PER_SECOND);
|
|
monitor_printf(mon, "qemu time %" PRId64 " (%0.3f)\n",
|
|
tcg_time, tcg_time / (double)NANOSECONDS_PER_SECOND);
|
|
tcg_time = 0;
|
|
dev_time = 0;
|
|
}
|
|
#else
|
|
static void hmp_info_profile(Monitor *mon, const QDict *qdict)
|
|
{
|
|
monitor_printf(mon, "Internal profiler not compiled\n");
|
|
}
|
|
#endif
|
|
|
|
/* Capture support */
|
|
static QLIST_HEAD (capture_list_head, CaptureState) capture_head;
|
|
|
|
static void hmp_info_capture(Monitor *mon, const QDict *qdict)
|
|
{
|
|
int i;
|
|
CaptureState *s;
|
|
|
|
for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
|
|
monitor_printf(mon, "[%d]: ", i);
|
|
s->ops.info (s->opaque);
|
|
}
|
|
}
|
|
|
|
static void hmp_stopcapture(Monitor *mon, const QDict *qdict)
|
|
{
|
|
int i;
|
|
int n = qdict_get_int(qdict, "n");
|
|
CaptureState *s;
|
|
|
|
for (s = capture_head.lh_first, i = 0; s; s = s->entries.le_next, ++i) {
|
|
if (i == n) {
|
|
s->ops.destroy (s->opaque);
|
|
QLIST_REMOVE (s, entries);
|
|
g_free (s);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void hmp_wavcapture(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *path = qdict_get_str(qdict, "path");
|
|
int has_freq = qdict_haskey(qdict, "freq");
|
|
int freq = qdict_get_try_int(qdict, "freq", -1);
|
|
int has_bits = qdict_haskey(qdict, "bits");
|
|
int bits = qdict_get_try_int(qdict, "bits", -1);
|
|
int has_channels = qdict_haskey(qdict, "nchannels");
|
|
int nchannels = qdict_get_try_int(qdict, "nchannels", -1);
|
|
CaptureState *s;
|
|
|
|
s = g_malloc0 (sizeof (*s));
|
|
|
|
freq = has_freq ? freq : 44100;
|
|
bits = has_bits ? bits : 16;
|
|
nchannels = has_channels ? nchannels : 2;
|
|
|
|
if (wav_start_capture (s, path, freq, bits, nchannels)) {
|
|
monitor_printf(mon, "Failed to add wave capture\n");
|
|
g_free (s);
|
|
return;
|
|
}
|
|
QLIST_INSERT_HEAD (&capture_head, s, entries);
|
|
}
|
|
|
|
static qemu_acl *find_acl(Monitor *mon, const char *name)
|
|
{
|
|
qemu_acl *acl = qemu_acl_find(name);
|
|
|
|
if (!acl) {
|
|
monitor_printf(mon, "acl: unknown list '%s'\n", name);
|
|
}
|
|
return acl;
|
|
}
|
|
|
|
static void hmp_acl_show(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *aclname = qdict_get_str(qdict, "aclname");
|
|
qemu_acl *acl = find_acl(mon, aclname);
|
|
qemu_acl_entry *entry;
|
|
int i = 0;
|
|
|
|
if (acl) {
|
|
monitor_printf(mon, "policy: %s\n",
|
|
acl->defaultDeny ? "deny" : "allow");
|
|
QTAILQ_FOREACH(entry, &acl->entries, next) {
|
|
i++;
|
|
monitor_printf(mon, "%d: %s %s\n", i,
|
|
entry->deny ? "deny" : "allow", entry->match);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void hmp_acl_reset(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *aclname = qdict_get_str(qdict, "aclname");
|
|
qemu_acl *acl = find_acl(mon, aclname);
|
|
|
|
if (acl) {
|
|
qemu_acl_reset(acl);
|
|
monitor_printf(mon, "acl: removed all rules\n");
|
|
}
|
|
}
|
|
|
|
static void hmp_acl_policy(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *aclname = qdict_get_str(qdict, "aclname");
|
|
const char *policy = qdict_get_str(qdict, "policy");
|
|
qemu_acl *acl = find_acl(mon, aclname);
|
|
|
|
if (acl) {
|
|
if (strcmp(policy, "allow") == 0) {
|
|
acl->defaultDeny = 0;
|
|
monitor_printf(mon, "acl: policy set to 'allow'\n");
|
|
} else if (strcmp(policy, "deny") == 0) {
|
|
acl->defaultDeny = 1;
|
|
monitor_printf(mon, "acl: policy set to 'deny'\n");
|
|
} else {
|
|
monitor_printf(mon, "acl: unknown policy '%s', "
|
|
"expected 'deny' or 'allow'\n", policy);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void hmp_acl_add(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *aclname = qdict_get_str(qdict, "aclname");
|
|
const char *match = qdict_get_str(qdict, "match");
|
|
const char *policy = qdict_get_str(qdict, "policy");
|
|
int has_index = qdict_haskey(qdict, "index");
|
|
int index = qdict_get_try_int(qdict, "index", -1);
|
|
qemu_acl *acl = find_acl(mon, aclname);
|
|
int deny, ret;
|
|
|
|
if (acl) {
|
|
if (strcmp(policy, "allow") == 0) {
|
|
deny = 0;
|
|
} else if (strcmp(policy, "deny") == 0) {
|
|
deny = 1;
|
|
} else {
|
|
monitor_printf(mon, "acl: unknown policy '%s', "
|
|
"expected 'deny' or 'allow'\n", policy);
|
|
return;
|
|
}
|
|
if (has_index)
|
|
ret = qemu_acl_insert(acl, deny, match, index);
|
|
else
|
|
ret = qemu_acl_append(acl, deny, match);
|
|
if (ret < 0)
|
|
monitor_printf(mon, "acl: unable to add acl entry\n");
|
|
else
|
|
monitor_printf(mon, "acl: added rule at position %d\n", ret);
|
|
}
|
|
}
|
|
|
|
static void hmp_acl_remove(Monitor *mon, const QDict *qdict)
|
|
{
|
|
const char *aclname = qdict_get_str(qdict, "aclname");
|
|
const char *match = qdict_get_str(qdict, "match");
|
|
qemu_acl *acl = find_acl(mon, aclname);
|
|
int ret;
|
|
|
|
if (acl) {
|
|
ret = qemu_acl_remove(acl, match);
|
|
if (ret < 0)
|
|
monitor_printf(mon, "acl: no matching acl entry\n");
|
|
else
|
|
monitor_printf(mon, "acl: removed rule at position %d\n", ret);
|
|
}
|
|
}
|
|
|
|
void qmp_getfd(const char *fdname, Error **errp)
|
|
{
|
|
mon_fd_t *monfd;
|
|
int fd;
|
|
|
|
fd = qemu_chr_fe_get_msgfd(&cur_mon->chr);
|
|
if (fd == -1) {
|
|
error_setg(errp, QERR_FD_NOT_SUPPLIED);
|
|
return;
|
|
}
|
|
|
|
if (qemu_isdigit(fdname[0])) {
|
|
close(fd);
|
|
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdname",
|
|
"a name not starting with a digit");
|
|
return;
|
|
}
|
|
|
|
QLIST_FOREACH(monfd, &cur_mon->fds, next) {
|
|
if (strcmp(monfd->name, fdname) != 0) {
|
|
continue;
|
|
}
|
|
|
|
close(monfd->fd);
|
|
monfd->fd = fd;
|
|
return;
|
|
}
|
|
|
|
monfd = g_malloc0(sizeof(mon_fd_t));
|
|
monfd->name = g_strdup(fdname);
|
|
monfd->fd = fd;
|
|
|
|
QLIST_INSERT_HEAD(&cur_mon->fds, monfd, next);
|
|
}
|
|
|
|
void qmp_closefd(const char *fdname, Error **errp)
|
|
{
|
|
mon_fd_t *monfd;
|
|
|
|
QLIST_FOREACH(monfd, &cur_mon->fds, next) {
|
|
if (strcmp(monfd->name, fdname) != 0) {
|
|
continue;
|
|
}
|
|
|
|
QLIST_REMOVE(monfd, next);
|
|
close(monfd->fd);
|
|
g_free(monfd->name);
|
|
g_free(monfd);
|
|
return;
|
|
}
|
|
|
|
error_setg(errp, QERR_FD_NOT_FOUND, fdname);
|
|
}
|
|
|
|
int monitor_get_fd(Monitor *mon, const char *fdname, Error **errp)
|
|
{
|
|
mon_fd_t *monfd;
|
|
|
|
QLIST_FOREACH(monfd, &mon->fds, next) {
|
|
int fd;
|
|
|
|
if (strcmp(monfd->name, fdname) != 0) {
|
|
continue;
|
|
}
|
|
|
|
fd = monfd->fd;
|
|
|
|
/* caller takes ownership of fd */
|
|
QLIST_REMOVE(monfd, next);
|
|
g_free(monfd->name);
|
|
g_free(monfd);
|
|
|
|
return fd;
|
|
}
|
|
|
|
error_setg(errp, "File descriptor named '%s' has not been found", fdname);
|
|
return -1;
|
|
}
|
|
|
|
static void monitor_fdset_cleanup(MonFdset *mon_fdset)
|
|
{
|
|
MonFdsetFd *mon_fdset_fd;
|
|
MonFdsetFd *mon_fdset_fd_next;
|
|
|
|
QLIST_FOREACH_SAFE(mon_fdset_fd, &mon_fdset->fds, next, mon_fdset_fd_next) {
|
|
if ((mon_fdset_fd->removed ||
|
|
(QLIST_EMPTY(&mon_fdset->dup_fds) && mon_refcount == 0)) &&
|
|
runstate_is_running()) {
|
|
close(mon_fdset_fd->fd);
|
|
g_free(mon_fdset_fd->opaque);
|
|
QLIST_REMOVE(mon_fdset_fd, next);
|
|
g_free(mon_fdset_fd);
|
|
}
|
|
}
|
|
|
|
if (QLIST_EMPTY(&mon_fdset->fds) && QLIST_EMPTY(&mon_fdset->dup_fds)) {
|
|
QLIST_REMOVE(mon_fdset, next);
|
|
g_free(mon_fdset);
|
|
}
|
|
}
|
|
|
|
static void monitor_fdsets_cleanup(void)
|
|
{
|
|
MonFdset *mon_fdset;
|
|
MonFdset *mon_fdset_next;
|
|
|
|
QLIST_FOREACH_SAFE(mon_fdset, &mon_fdsets, next, mon_fdset_next) {
|
|
monitor_fdset_cleanup(mon_fdset);
|
|
}
|
|
}
|
|
|
|
AddfdInfo *qmp_add_fd(bool has_fdset_id, int64_t fdset_id, bool has_opaque,
|
|
const char *opaque, Error **errp)
|
|
{
|
|
int fd;
|
|
Monitor *mon = cur_mon;
|
|
AddfdInfo *fdinfo;
|
|
|
|
fd = qemu_chr_fe_get_msgfd(&mon->chr);
|
|
if (fd == -1) {
|
|
error_setg(errp, QERR_FD_NOT_SUPPLIED);
|
|
goto error;
|
|
}
|
|
|
|
fdinfo = monitor_fdset_add_fd(fd, has_fdset_id, fdset_id,
|
|
has_opaque, opaque, errp);
|
|
if (fdinfo) {
|
|
return fdinfo;
|
|
}
|
|
|
|
error:
|
|
if (fd != -1) {
|
|
close(fd);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
void qmp_remove_fd(int64_t fdset_id, bool has_fd, int64_t fd, Error **errp)
|
|
{
|
|
MonFdset *mon_fdset;
|
|
MonFdsetFd *mon_fdset_fd;
|
|
char fd_str[60];
|
|
|
|
QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
|
|
if (mon_fdset->id != fdset_id) {
|
|
continue;
|
|
}
|
|
QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
|
|
if (has_fd) {
|
|
if (mon_fdset_fd->fd != fd) {
|
|
continue;
|
|
}
|
|
mon_fdset_fd->removed = true;
|
|
break;
|
|
} else {
|
|
mon_fdset_fd->removed = true;
|
|
}
|
|
}
|
|
if (has_fd && !mon_fdset_fd) {
|
|
goto error;
|
|
}
|
|
monitor_fdset_cleanup(mon_fdset);
|
|
return;
|
|
}
|
|
|
|
error:
|
|
if (has_fd) {
|
|
snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64 ", fd:%" PRId64,
|
|
fdset_id, fd);
|
|
} else {
|
|
snprintf(fd_str, sizeof(fd_str), "fdset-id:%" PRId64, fdset_id);
|
|
}
|
|
error_setg(errp, QERR_FD_NOT_FOUND, fd_str);
|
|
}
|
|
|
|
FdsetInfoList *qmp_query_fdsets(Error **errp)
|
|
{
|
|
MonFdset *mon_fdset;
|
|
MonFdsetFd *mon_fdset_fd;
|
|
FdsetInfoList *fdset_list = NULL;
|
|
|
|
QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
|
|
FdsetInfoList *fdset_info = g_malloc0(sizeof(*fdset_info));
|
|
FdsetFdInfoList *fdsetfd_list = NULL;
|
|
|
|
fdset_info->value = g_malloc0(sizeof(*fdset_info->value));
|
|
fdset_info->value->fdset_id = mon_fdset->id;
|
|
|
|
QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
|
|
FdsetFdInfoList *fdsetfd_info;
|
|
|
|
fdsetfd_info = g_malloc0(sizeof(*fdsetfd_info));
|
|
fdsetfd_info->value = g_malloc0(sizeof(*fdsetfd_info->value));
|
|
fdsetfd_info->value->fd = mon_fdset_fd->fd;
|
|
if (mon_fdset_fd->opaque) {
|
|
fdsetfd_info->value->has_opaque = true;
|
|
fdsetfd_info->value->opaque = g_strdup(mon_fdset_fd->opaque);
|
|
} else {
|
|
fdsetfd_info->value->has_opaque = false;
|
|
}
|
|
|
|
fdsetfd_info->next = fdsetfd_list;
|
|
fdsetfd_list = fdsetfd_info;
|
|
}
|
|
|
|
fdset_info->value->fds = fdsetfd_list;
|
|
|
|
fdset_info->next = fdset_list;
|
|
fdset_list = fdset_info;
|
|
}
|
|
|
|
return fdset_list;
|
|
}
|
|
|
|
AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id,
|
|
bool has_opaque, const char *opaque,
|
|
Error **errp)
|
|
{
|
|
MonFdset *mon_fdset = NULL;
|
|
MonFdsetFd *mon_fdset_fd;
|
|
AddfdInfo *fdinfo;
|
|
|
|
if (has_fdset_id) {
|
|
QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
|
|
/* Break if match found or match impossible due to ordering by ID */
|
|
if (fdset_id <= mon_fdset->id) {
|
|
if (fdset_id < mon_fdset->id) {
|
|
mon_fdset = NULL;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (mon_fdset == NULL) {
|
|
int64_t fdset_id_prev = -1;
|
|
MonFdset *mon_fdset_cur = QLIST_FIRST(&mon_fdsets);
|
|
|
|
if (has_fdset_id) {
|
|
if (fdset_id < 0) {
|
|
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "fdset-id",
|
|
"a non-negative value");
|
|
return NULL;
|
|
}
|
|
/* Use specified fdset ID */
|
|
QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
|
|
mon_fdset_cur = mon_fdset;
|
|
if (fdset_id < mon_fdset_cur->id) {
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
/* Use first available fdset ID */
|
|
QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
|
|
mon_fdset_cur = mon_fdset;
|
|
if (fdset_id_prev == mon_fdset_cur->id - 1) {
|
|
fdset_id_prev = mon_fdset_cur->id;
|
|
continue;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
mon_fdset = g_malloc0(sizeof(*mon_fdset));
|
|
if (has_fdset_id) {
|
|
mon_fdset->id = fdset_id;
|
|
} else {
|
|
mon_fdset->id = fdset_id_prev + 1;
|
|
}
|
|
|
|
/* The fdset list is ordered by fdset ID */
|
|
if (!mon_fdset_cur) {
|
|
QLIST_INSERT_HEAD(&mon_fdsets, mon_fdset, next);
|
|
} else if (mon_fdset->id < mon_fdset_cur->id) {
|
|
QLIST_INSERT_BEFORE(mon_fdset_cur, mon_fdset, next);
|
|
} else {
|
|
QLIST_INSERT_AFTER(mon_fdset_cur, mon_fdset, next);
|
|
}
|
|
}
|
|
|
|
mon_fdset_fd = g_malloc0(sizeof(*mon_fdset_fd));
|
|
mon_fdset_fd->fd = fd;
|
|
mon_fdset_fd->removed = false;
|
|
if (has_opaque) {
|
|
mon_fdset_fd->opaque = g_strdup(opaque);
|
|
}
|
|
QLIST_INSERT_HEAD(&mon_fdset->fds, mon_fdset_fd, next);
|
|
|
|
fdinfo = g_malloc0(sizeof(*fdinfo));
|
|
fdinfo->fdset_id = mon_fdset->id;
|
|
fdinfo->fd = mon_fdset_fd->fd;
|
|
|
|
return fdinfo;
|
|
}
|
|
|
|
int monitor_fdset_get_fd(int64_t fdset_id, int flags)
|
|
{
|
|
#ifndef _WIN32
|
|
MonFdset *mon_fdset;
|
|
MonFdsetFd *mon_fdset_fd;
|
|
int mon_fd_flags;
|
|
|
|
QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
|
|
if (mon_fdset->id != fdset_id) {
|
|
continue;
|
|
}
|
|
QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) {
|
|
mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL);
|
|
if (mon_fd_flags == -1) {
|
|
return -1;
|
|
}
|
|
|
|
if ((flags & O_ACCMODE) == (mon_fd_flags & O_ACCMODE)) {
|
|
return mon_fdset_fd->fd;
|
|
}
|
|
}
|
|
errno = EACCES;
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
errno = ENOENT;
|
|
return -1;
|
|
}
|
|
|
|
int monitor_fdset_dup_fd_add(int64_t fdset_id, int dup_fd)
|
|
{
|
|
MonFdset *mon_fdset;
|
|
MonFdsetFd *mon_fdset_fd_dup;
|
|
|
|
QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
|
|
if (mon_fdset->id != fdset_id) {
|
|
continue;
|
|
}
|
|
QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
|
|
if (mon_fdset_fd_dup->fd == dup_fd) {
|
|
return -1;
|
|
}
|
|
}
|
|
mon_fdset_fd_dup = g_malloc0(sizeof(*mon_fdset_fd_dup));
|
|
mon_fdset_fd_dup->fd = dup_fd;
|
|
QLIST_INSERT_HEAD(&mon_fdset->dup_fds, mon_fdset_fd_dup, next);
|
|
return 0;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
static int monitor_fdset_dup_fd_find_remove(int dup_fd, bool remove)
|
|
{
|
|
MonFdset *mon_fdset;
|
|
MonFdsetFd *mon_fdset_fd_dup;
|
|
|
|
QLIST_FOREACH(mon_fdset, &mon_fdsets, next) {
|
|
QLIST_FOREACH(mon_fdset_fd_dup, &mon_fdset->dup_fds, next) {
|
|
if (mon_fdset_fd_dup->fd == dup_fd) {
|
|
if (remove) {
|
|
QLIST_REMOVE(mon_fdset_fd_dup, next);
|
|
if (QLIST_EMPTY(&mon_fdset->dup_fds)) {
|
|
monitor_fdset_cleanup(mon_fdset);
|
|
}
|
|
return -1;
|
|
} else {
|
|
return mon_fdset->id;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int monitor_fdset_dup_fd_find(int dup_fd)
|
|
{
|
|
return monitor_fdset_dup_fd_find_remove(dup_fd, false);
|
|
}
|
|
|
|
void monitor_fdset_dup_fd_remove(int dup_fd)
|
|
{
|
|
monitor_fdset_dup_fd_find_remove(dup_fd, true);
|
|
}
|
|
|
|
int monitor_fd_param(Monitor *mon, const char *fdname, Error **errp)
|
|
{
|
|
int fd;
|
|
Error *local_err = NULL;
|
|
|
|
if (!qemu_isdigit(fdname[0]) && mon) {
|
|
fd = monitor_get_fd(mon, fdname, &local_err);
|
|
} else {
|
|
fd = qemu_parse_fd(fdname);
|
|
if (fd == -1) {
|
|
error_setg(&local_err, "Invalid file descriptor number '%s'",
|
|
fdname);
|
|
}
|
|
}
|
|
if (local_err) {
|
|
error_propagate(errp, local_err);
|
|
assert(fd == -1);
|
|
} else {
|
|
assert(fd != -1);
|
|
}
|
|
|
|
return fd;
|
|
}
|
|
|
|
/* Please update hmp-commands.hx when adding or changing commands */
|
|
static mon_cmd_t info_cmds[] = {
|
|
#include "hmp-commands-info.h"
|
|
{ NULL, NULL, },
|
|
};
|
|
|
|
/* mon_cmds and info_cmds would be sorted at runtime */
|
|
static mon_cmd_t mon_cmds[] = {
|
|
#include "hmp-commands.h"
|
|
{ NULL, NULL, },
|
|
};
|
|
|
|
/*******************************************************************/
|
|
|
|
static const char *pch;
|
|
static sigjmp_buf expr_env;
|
|
|
|
|
|
static void GCC_FMT_ATTR(2, 3) QEMU_NORETURN
|
|
expr_error(Monitor *mon, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
monitor_vprintf(mon, fmt, ap);
|
|
monitor_printf(mon, "\n");
|
|
va_end(ap);
|
|
siglongjmp(expr_env, 1);
|
|
}
|
|
|
|
/* return 0 if OK, -1 if not found */
|
|
static int get_monitor_def(target_long *pval, const char *name)
|
|
{
|
|
const MonitorDef *md = target_monitor_defs();
|
|
CPUState *cs = mon_get_cpu();
|
|
void *ptr;
|
|
uint64_t tmp = 0;
|
|
int ret;
|
|
|
|
if (cs == NULL || md == NULL) {
|
|
return -1;
|
|
}
|
|
|
|
for(; md->name != NULL; md++) {
|
|
if (compare_cmd(name, md->name)) {
|
|
if (md->get_value) {
|
|
*pval = md->get_value(md, md->offset);
|
|
} else {
|
|
CPUArchState *env = mon_get_cpu_env();
|
|
ptr = (uint8_t *)env + md->offset;
|
|
switch(md->type) {
|
|
case MD_I32:
|
|
*pval = *(int32_t *)ptr;
|
|
break;
|
|
case MD_TLONG:
|
|
*pval = *(target_long *)ptr;
|
|
break;
|
|
default:
|
|
*pval = 0;
|
|
break;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
ret = target_get_monitor_def(cs, name, &tmp);
|
|
if (!ret) {
|
|
*pval = (target_long) tmp;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void next(void)
|
|
{
|
|
if (*pch != '\0') {
|
|
pch++;
|
|
while (qemu_isspace(*pch))
|
|
pch++;
|
|
}
|
|
}
|
|
|
|
static int64_t expr_sum(Monitor *mon);
|
|
|
|
static int64_t expr_unary(Monitor *mon)
|
|
{
|
|
int64_t n;
|
|
char *p;
|
|
int ret;
|
|
|
|
switch(*pch) {
|
|
case '+':
|
|
next();
|
|
n = expr_unary(mon);
|
|
break;
|
|
case '-':
|
|
next();
|
|
n = -expr_unary(mon);
|
|
break;
|
|
case '~':
|
|
next();
|
|
n = ~expr_unary(mon);
|
|
break;
|
|
case '(':
|
|
next();
|
|
n = expr_sum(mon);
|
|
if (*pch != ')') {
|
|
expr_error(mon, "')' expected");
|
|
}
|
|
next();
|
|
break;
|
|
case '\'':
|
|
pch++;
|
|
if (*pch == '\0')
|
|
expr_error(mon, "character constant expected");
|
|
n = *pch;
|
|
pch++;
|
|
if (*pch != '\'')
|
|
expr_error(mon, "missing terminating \' character");
|
|
next();
|
|
break;
|
|
case '$':
|
|
{
|
|
char buf[128], *q;
|
|
target_long reg=0;
|
|
|
|
pch++;
|
|
q = buf;
|
|
while ((*pch >= 'a' && *pch <= 'z') ||
|
|
(*pch >= 'A' && *pch <= 'Z') ||
|
|
(*pch >= '0' && *pch <= '9') ||
|
|
*pch == '_' || *pch == '.') {
|
|
if ((q - buf) < sizeof(buf) - 1)
|
|
*q++ = *pch;
|
|
pch++;
|
|
}
|
|
while (qemu_isspace(*pch))
|
|
pch++;
|
|
*q = 0;
|
|
ret = get_monitor_def(®, buf);
|
|
if (ret < 0)
|
|
expr_error(mon, "unknown register");
|
|
n = reg;
|
|
}
|
|
break;
|
|
case '\0':
|
|
expr_error(mon, "unexpected end of expression");
|
|
n = 0;
|
|
break;
|
|
default:
|
|
errno = 0;
|
|
n = strtoull(pch, &p, 0);
|
|
if (errno == ERANGE) {
|
|
expr_error(mon, "number too large");
|
|
}
|
|
if (pch == p) {
|
|
expr_error(mon, "invalid char '%c' in expression", *p);
|
|
}
|
|
pch = p;
|
|
while (qemu_isspace(*pch))
|
|
pch++;
|
|
break;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
|
|
static int64_t expr_prod(Monitor *mon)
|
|
{
|
|
int64_t val, val2;
|
|
int op;
|
|
|
|
val = expr_unary(mon);
|
|
for(;;) {
|
|
op = *pch;
|
|
if (op != '*' && op != '/' && op != '%')
|
|
break;
|
|
next();
|
|
val2 = expr_unary(mon);
|
|
switch(op) {
|
|
default:
|
|
case '*':
|
|
val *= val2;
|
|
break;
|
|
case '/':
|
|
case '%':
|
|
if (val2 == 0)
|
|
expr_error(mon, "division by zero");
|
|
if (op == '/')
|
|
val /= val2;
|
|
else
|
|
val %= val2;
|
|
break;
|
|
}
|
|
}
|
|
return val;
|
|
}
|
|
|
|
static int64_t expr_logic(Monitor *mon)
|
|
{
|
|
int64_t val, val2;
|
|
int op;
|
|
|
|
val = expr_prod(mon);
|
|
for(;;) {
|
|
op = *pch;
|
|
if (op != '&' && op != '|' && op != '^')
|
|
break;
|
|
next();
|
|
val2 = expr_prod(mon);
|
|
switch(op) {
|
|
default:
|
|
case '&':
|
|
val &= val2;
|
|
break;
|
|
case '|':
|
|
val |= val2;
|
|
break;
|
|
case '^':
|
|
val ^= val2;
|
|
break;
|
|
}
|
|
}
|
|
return val;
|
|
}
|
|
|
|
static int64_t expr_sum(Monitor *mon)
|
|
{
|
|
int64_t val, val2;
|
|
int op;
|
|
|
|
val = expr_logic(mon);
|
|
for(;;) {
|
|
op = *pch;
|
|
if (op != '+' && op != '-')
|
|
break;
|
|
next();
|
|
val2 = expr_logic(mon);
|
|
if (op == '+')
|
|
val += val2;
|
|
else
|
|
val -= val2;
|
|
}
|
|
return val;
|
|
}
|
|
|
|
static int get_expr(Monitor *mon, int64_t *pval, const char **pp)
|
|
{
|
|
pch = *pp;
|
|
if (sigsetjmp(expr_env, 0)) {
|
|
*pp = pch;
|
|
return -1;
|
|
}
|
|
while (qemu_isspace(*pch))
|
|
pch++;
|
|
*pval = expr_sum(mon);
|
|
*pp = pch;
|
|
return 0;
|
|
}
|
|
|
|
static int get_double(Monitor *mon, double *pval, const char **pp)
|
|
{
|
|
const char *p = *pp;
|
|
char *tailp;
|
|
double d;
|
|
|
|
d = strtod(p, &tailp);
|
|
if (tailp == p) {
|
|
monitor_printf(mon, "Number expected\n");
|
|
return -1;
|
|
}
|
|
if (d != d || d - d != 0) {
|
|
/* NaN or infinity */
|
|
monitor_printf(mon, "Bad number\n");
|
|
return -1;
|
|
}
|
|
*pval = d;
|
|
*pp = tailp;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Store the command-name in cmdname, and return a pointer to
|
|
* the remaining of the command string.
|
|
*/
|
|
static const char *get_command_name(const char *cmdline,
|
|
char *cmdname, size_t nlen)
|
|
{
|
|
size_t len;
|
|
const char *p, *pstart;
|
|
|
|
p = cmdline;
|
|
while (qemu_isspace(*p))
|
|
p++;
|
|
if (*p == '\0')
|
|
return NULL;
|
|
pstart = p;
|
|
while (*p != '\0' && *p != '/' && !qemu_isspace(*p))
|
|
p++;
|
|
len = p - pstart;
|
|
if (len > nlen - 1)
|
|
len = nlen - 1;
|
|
memcpy(cmdname, pstart, len);
|
|
cmdname[len] = '\0';
|
|
return p;
|
|
}
|
|
|
|
/**
|
|
* Read key of 'type' into 'key' and return the current
|
|
* 'type' pointer.
|
|
*/
|
|
static char *key_get_info(const char *type, char **key)
|
|
{
|
|
size_t len;
|
|
char *p, *str;
|
|
|
|
if (*type == ',')
|
|
type++;
|
|
|
|
p = strchr(type, ':');
|
|
if (!p) {
|
|
*key = NULL;
|
|
return NULL;
|
|
}
|
|
len = p - type;
|
|
|
|
str = g_malloc(len + 1);
|
|
memcpy(str, type, len);
|
|
str[len] = '\0';
|
|
|
|
*key = str;
|
|
return ++p;
|
|
}
|
|
|
|
static int default_fmt_format = 'x';
|
|
static int default_fmt_size = 4;
|
|
|
|
static int is_valid_option(const char *c, const char *typestr)
|
|
{
|
|
char option[3];
|
|
|
|
option[0] = '-';
|
|
option[1] = *c;
|
|
option[2] = '\0';
|
|
|
|
typestr = strstr(typestr, option);
|
|
return (typestr != NULL);
|
|
}
|
|
|
|
static const mon_cmd_t *search_dispatch_table(const mon_cmd_t *disp_table,
|
|
const char *cmdname)
|
|
{
|
|
const mon_cmd_t *cmd;
|
|
|
|
for (cmd = disp_table; cmd->name != NULL; cmd++) {
|
|
if (compare_cmd(cmdname, cmd->name)) {
|
|
return cmd;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Parse command name from @cmdp according to command table @table.
|
|
* If blank, return NULL.
|
|
* Else, if no valid command can be found, report to @mon, and return
|
|
* NULL.
|
|
* Else, change @cmdp to point right behind the name, and return its
|
|
* command table entry.
|
|
* Do not assume the return value points into @table! It doesn't when
|
|
* the command is found in a sub-command table.
|
|
*/
|
|
static const mon_cmd_t *monitor_parse_command(Monitor *mon,
|
|
const char *cmdp_start,
|
|
const char **cmdp,
|
|
mon_cmd_t *table)
|
|
{
|
|
const char *p;
|
|
const mon_cmd_t *cmd;
|
|
char cmdname[256];
|
|
|
|
/* extract the command name */
|
|
p = get_command_name(*cmdp, cmdname, sizeof(cmdname));
|
|
if (!p)
|
|
return NULL;
|
|
|
|
cmd = search_dispatch_table(table, cmdname);
|
|
if (!cmd) {
|
|
monitor_printf(mon, "unknown command: '%.*s'\n",
|
|
(int)(p - cmdp_start), cmdp_start);
|
|
return NULL;
|
|
}
|
|
|
|
/* filter out following useless space */
|
|
while (qemu_isspace(*p)) {
|
|
p++;
|
|
}
|
|
|
|
*cmdp = p;
|
|
/* search sub command */
|
|
if (cmd->sub_table != NULL && *p != '\0') {
|
|
return monitor_parse_command(mon, cmdp_start, cmdp, cmd->sub_table);
|
|
}
|
|
|
|
return cmd;
|
|
}
|
|
|
|
/*
|
|
* Parse arguments for @cmd.
|
|
* If it can't be parsed, report to @mon, and return NULL.
|
|
* Else, insert command arguments into a QDict, and return it.
|
|
* Note: On success, caller has to free the QDict structure.
|
|
*/
|
|
|
|
static QDict *monitor_parse_arguments(Monitor *mon,
|
|
const char **endp,
|
|
const mon_cmd_t *cmd)
|
|
{
|
|
const char *typestr;
|
|
char *key;
|
|
int c;
|
|
const char *p = *endp;
|
|
char buf[1024];
|
|
QDict *qdict = qdict_new();
|
|
|
|
/* parse the parameters */
|
|
typestr = cmd->args_type;
|
|
for(;;) {
|
|
typestr = key_get_info(typestr, &key);
|
|
if (!typestr)
|
|
break;
|
|
c = *typestr;
|
|
typestr++;
|
|
switch(c) {
|
|
case 'F':
|
|
case 'B':
|
|
case 's':
|
|
{
|
|
int ret;
|
|
|
|
while (qemu_isspace(*p))
|
|
p++;
|
|
if (*typestr == '?') {
|
|
typestr++;
|
|
if (*p == '\0') {
|
|
/* no optional string: NULL argument */
|
|
break;
|
|
}
|
|
}
|
|
ret = get_str(buf, sizeof(buf), &p);
|
|
if (ret < 0) {
|
|
switch(c) {
|
|
case 'F':
|
|
monitor_printf(mon, "%s: filename expected\n",
|
|
cmd->name);
|
|
break;
|
|
case 'B':
|
|
monitor_printf(mon, "%s: block device name expected\n",
|
|
cmd->name);
|
|
break;
|
|
default:
|
|
monitor_printf(mon, "%s: string expected\n", cmd->name);
|
|
break;
|
|
}
|
|
goto fail;
|
|
}
|
|
qdict_put_str(qdict, key, buf);
|
|
}
|
|
break;
|
|
case 'O':
|
|
{
|
|
QemuOptsList *opts_list;
|
|
QemuOpts *opts;
|
|
|
|
opts_list = qemu_find_opts(key);
|
|
if (!opts_list || opts_list->desc->name) {
|
|
goto bad_type;
|
|
}
|
|
while (qemu_isspace(*p)) {
|
|
p++;
|
|
}
|
|
if (!*p)
|
|
break;
|
|
if (get_str(buf, sizeof(buf), &p) < 0) {
|
|
goto fail;
|
|
}
|
|
opts = qemu_opts_parse_noisily(opts_list, buf, true);
|
|
if (!opts) {
|
|
goto fail;
|
|
}
|
|
qemu_opts_to_qdict(opts, qdict);
|
|
qemu_opts_del(opts);
|
|
}
|
|
break;
|
|
case '/':
|
|
{
|
|
int count, format, size;
|
|
|
|
while (qemu_isspace(*p))
|
|
p++;
|
|
if (*p == '/') {
|
|
/* format found */
|
|
p++;
|
|
count = 1;
|
|
if (qemu_isdigit(*p)) {
|
|
count = 0;
|
|
while (qemu_isdigit(*p)) {
|
|
count = count * 10 + (*p - '0');
|
|
p++;
|
|
}
|
|
}
|
|
size = -1;
|
|
format = -1;
|
|
for(;;) {
|
|
switch(*p) {
|
|
case 'o':
|
|
case 'd':
|
|
case 'u':
|
|
case 'x':
|
|
case 'i':
|
|
case 'c':
|
|
format = *p++;
|
|
break;
|
|
case 'b':
|
|
size = 1;
|
|
p++;
|
|
break;
|
|
case 'h':
|
|
size = 2;
|
|
p++;
|
|
break;
|
|
case 'w':
|
|
size = 4;
|
|
p++;
|
|
break;
|
|
case 'g':
|
|
case 'L':
|
|
size = 8;
|
|
p++;
|
|
break;
|
|
default:
|
|
goto next;
|
|
}
|
|
}
|
|
next:
|
|
if (*p != '\0' && !qemu_isspace(*p)) {
|
|
monitor_printf(mon, "invalid char in format: '%c'\n",
|
|
*p);
|
|
goto fail;
|
|
}
|
|
if (format < 0)
|
|
format = default_fmt_format;
|
|
if (format != 'i') {
|
|
/* for 'i', not specifying a size gives -1 as size */
|
|
if (size < 0)
|
|
size = default_fmt_size;
|
|
default_fmt_size = size;
|
|
}
|
|
default_fmt_format = format;
|
|
} else {
|
|
count = 1;
|
|
format = default_fmt_format;
|
|
if (format != 'i') {
|
|
size = default_fmt_size;
|
|
} else {
|
|
size = -1;
|
|
}
|
|
}
|
|
qdict_put_int(qdict, "count", count);
|
|
qdict_put_int(qdict, "format", format);
|
|
qdict_put_int(qdict, "size", size);
|
|
}
|
|
break;
|
|
case 'i':
|
|
case 'l':
|
|
case 'M':
|
|
{
|
|
int64_t val;
|
|
|
|
while (qemu_isspace(*p))
|
|
p++;
|
|
if (*typestr == '?' || *typestr == '.') {
|
|
if (*typestr == '?') {
|
|
if (*p == '\0') {
|
|
typestr++;
|
|
break;
|
|
}
|
|
} else {
|
|
if (*p == '.') {
|
|
p++;
|
|
while (qemu_isspace(*p))
|
|
p++;
|
|
} else {
|
|
typestr++;
|
|
break;
|
|
}
|
|
}
|
|
typestr++;
|
|
}
|
|
if (get_expr(mon, &val, &p))
|
|
goto fail;
|
|
/* Check if 'i' is greater than 32-bit */
|
|
if ((c == 'i') && ((val >> 32) & 0xffffffff)) {
|
|
monitor_printf(mon, "\'%s\' has failed: ", cmd->name);
|
|
monitor_printf(mon, "integer is for 32-bit values\n");
|
|
goto fail;
|
|
} else if (c == 'M') {
|
|
if (val < 0) {
|
|
monitor_printf(mon, "enter a positive value\n");
|
|
goto fail;
|
|
}
|
|
val <<= 20;
|
|
}
|
|
qdict_put_int(qdict, key, val);
|
|
}
|
|
break;
|
|
case 'o':
|
|
{
|
|
int ret;
|
|
uint64_t val;
|
|
char *end;
|
|
|
|
while (qemu_isspace(*p)) {
|
|
p++;
|
|
}
|
|
if (*typestr == '?') {
|
|
typestr++;
|
|
if (*p == '\0') {
|
|
break;
|
|
}
|
|
}
|
|
ret = qemu_strtosz_MiB(p, &end, &val);
|
|
if (ret < 0 || val > INT64_MAX) {
|
|
monitor_printf(mon, "invalid size\n");
|
|
goto fail;
|
|
}
|
|
qdict_put_int(qdict, key, val);
|
|
p = end;
|
|
}
|
|
break;
|
|
case 'T':
|
|
{
|
|
double val;
|
|
|
|
while (qemu_isspace(*p))
|
|
p++;
|
|
if (*typestr == '?') {
|
|
typestr++;
|
|
if (*p == '\0') {
|
|
break;
|
|
}
|
|
}
|
|
if (get_double(mon, &val, &p) < 0) {
|
|
goto fail;
|
|
}
|
|
if (p[0] && p[1] == 's') {
|
|
switch (*p) {
|
|
case 'm':
|
|
val /= 1e3; p += 2; break;
|
|
case 'u':
|
|
val /= 1e6; p += 2; break;
|
|
case 'n':
|
|
val /= 1e9; p += 2; break;
|
|
}
|
|
}
|
|
if (*p && !qemu_isspace(*p)) {
|
|
monitor_printf(mon, "Unknown unit suffix\n");
|
|
goto fail;
|
|
}
|
|
qdict_put(qdict, key, qnum_from_double(val));
|
|
}
|
|
break;
|
|
case 'b':
|
|
{
|
|
const char *beg;
|
|
bool val;
|
|
|
|
while (qemu_isspace(*p)) {
|
|
p++;
|
|
}
|
|
beg = p;
|
|
while (qemu_isgraph(*p)) {
|
|
p++;
|
|
}
|
|
if (p - beg == 2 && !memcmp(beg, "on", p - beg)) {
|
|
val = true;
|
|
} else if (p - beg == 3 && !memcmp(beg, "off", p - beg)) {
|
|
val = false;
|
|
} else {
|
|
monitor_printf(mon, "Expected 'on' or 'off'\n");
|
|
goto fail;
|
|
}
|
|
qdict_put_bool(qdict, key, val);
|
|
}
|
|
break;
|
|
case '-':
|
|
{
|
|
const char *tmp = p;
|
|
int skip_key = 0;
|
|
/* option */
|
|
|
|
c = *typestr++;
|
|
if (c == '\0')
|
|
goto bad_type;
|
|
while (qemu_isspace(*p))
|
|
p++;
|
|
if (*p == '-') {
|
|
p++;
|
|
if(c != *p) {
|
|
if(!is_valid_option(p, typestr)) {
|
|
|
|
monitor_printf(mon, "%s: unsupported option -%c\n",
|
|
cmd->name, *p);
|
|
goto fail;
|
|
} else {
|
|
skip_key = 1;
|
|
}
|
|
}
|
|
if(skip_key) {
|
|
p = tmp;
|
|
} else {
|
|
/* has option */
|
|
p++;
|
|
qdict_put_bool(qdict, key, true);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case 'S':
|
|
{
|
|
/* package all remaining string */
|
|
int len;
|
|
|
|
while (qemu_isspace(*p)) {
|
|
p++;
|
|
}
|
|
if (*typestr == '?') {
|
|
typestr++;
|
|
if (*p == '\0') {
|
|
/* no remaining string: NULL argument */
|
|
break;
|
|
}
|
|
}
|
|
len = strlen(p);
|
|
if (len <= 0) {
|
|
monitor_printf(mon, "%s: string expected\n",
|
|
cmd->name);
|
|
goto fail;
|
|
}
|
|
qdict_put_str(qdict, key, p);
|
|
p += len;
|
|
}
|
|
break;
|
|
default:
|
|
bad_type:
|
|
monitor_printf(mon, "%s: unknown type '%c'\n", cmd->name, c);
|
|
goto fail;
|
|
}
|
|
g_free(key);
|
|
key = NULL;
|
|
}
|
|
/* check that all arguments were parsed */
|
|
while (qemu_isspace(*p))
|
|
p++;
|
|
if (*p != '\0') {
|
|
monitor_printf(mon, "%s: extraneous characters at the end of line\n",
|
|
cmd->name);
|
|
goto fail;
|
|
}
|
|
|
|
return qdict;
|
|
|
|
fail:
|
|
qobject_unref(qdict);
|
|
g_free(key);
|
|
return NULL;
|
|
}
|
|
|
|
static void handle_hmp_command(Monitor *mon, const char *cmdline)
|
|
{
|
|
QDict *qdict;
|
|
const mon_cmd_t *cmd;
|
|
|
|
trace_handle_hmp_command(mon, cmdline);
|
|
|
|
cmd = monitor_parse_command(mon, cmdline, &cmdline, mon->cmd_table);
|
|
if (!cmd) {
|
|
return;
|
|
}
|
|
|
|
qdict = monitor_parse_arguments(mon, &cmdline, cmd);
|
|
if (!qdict) {
|
|
monitor_printf(mon, "Try \"help %s\" for more information\n",
|
|
cmd->name);
|
|
return;
|
|
}
|
|
|
|
cmd->cmd(mon, qdict);
|
|
qobject_unref(qdict);
|
|
}
|
|
|
|
static void cmd_completion(Monitor *mon, const char *name, const char *list)
|
|
{
|
|
const char *p, *pstart;
|
|
char cmd[128];
|
|
int len;
|
|
|
|
p = list;
|
|
for(;;) {
|
|
pstart = p;
|
|
p = strchr(p, '|');
|
|
if (!p)
|
|
p = pstart + strlen(pstart);
|
|
len = p - pstart;
|
|
if (len > sizeof(cmd) - 2)
|
|
len = sizeof(cmd) - 2;
|
|
memcpy(cmd, pstart, len);
|
|
cmd[len] = '\0';
|
|
if (name[0] == '\0' || !strncmp(name, cmd, strlen(name))) {
|
|
readline_add_completion(mon->rs, cmd);
|
|
}
|
|
if (*p == '\0')
|
|
break;
|
|
p++;
|
|
}
|
|
}
|
|
|
|
static void file_completion(Monitor *mon, const char *input)
|
|
{
|
|
DIR *ffs;
|
|
struct dirent *d;
|
|
char path[1024];
|
|
char file[1024], file_prefix[1024];
|
|
int input_path_len;
|
|
const char *p;
|
|
|
|
p = strrchr(input, '/');
|
|
if (!p) {
|
|
input_path_len = 0;
|
|
pstrcpy(file_prefix, sizeof(file_prefix), input);
|
|
pstrcpy(path, sizeof(path), ".");
|
|
} else {
|
|
input_path_len = p - input + 1;
|
|
memcpy(path, input, input_path_len);
|
|
if (input_path_len > sizeof(path) - 1)
|
|
input_path_len = sizeof(path) - 1;
|
|
path[input_path_len] = '\0';
|
|
pstrcpy(file_prefix, sizeof(file_prefix), p + 1);
|
|
}
|
|
|
|
ffs = opendir(path);
|
|
if (!ffs)
|
|
return;
|
|
for(;;) {
|
|
struct stat sb;
|
|
d = readdir(ffs);
|
|
if (!d)
|
|
break;
|
|
|
|
if (strcmp(d->d_name, ".") == 0 || strcmp(d->d_name, "..") == 0) {
|
|
continue;
|
|
}
|
|
|
|
if (strstart(d->d_name, file_prefix, NULL)) {
|
|
memcpy(file, input, input_path_len);
|
|
if (input_path_len < sizeof(file))
|
|
pstrcpy(file + input_path_len, sizeof(file) - input_path_len,
|
|
d->d_name);
|
|
/* stat the file to find out if it's a directory.
|
|
* In that case add a slash to speed up typing long paths
|
|
*/
|
|
if (stat(file, &sb) == 0 && S_ISDIR(sb.st_mode)) {
|
|
pstrcat(file, sizeof(file), "/");
|
|
}
|
|
readline_add_completion(mon->rs, file);
|
|
}
|
|
}
|
|
closedir(ffs);
|
|
}
|
|
|
|
static const char *next_arg_type(const char *typestr)
|
|
{
|
|
const char *p = strchr(typestr, ':');
|
|
return (p != NULL ? ++p : typestr);
|
|
}
|
|
|
|
static void add_completion_option(ReadLineState *rs, const char *str,
|
|
const char *option)
|
|
{
|
|
if (!str || !option) {
|
|
return;
|
|
}
|
|
if (!strncmp(option, str, strlen(str))) {
|
|
readline_add_completion(rs, option);
|
|
}
|
|
}
|
|
|
|
void chardev_add_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
size_t len;
|
|
ChardevBackendInfoList *list, *start;
|
|
|
|
if (nb_args != 2) {
|
|
return;
|
|
}
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
|
|
start = list = qmp_query_chardev_backends(NULL);
|
|
while (list) {
|
|
const char *chr_name = list->value->name;
|
|
|
|
if (!strncmp(chr_name, str, len)) {
|
|
readline_add_completion(rs, chr_name);
|
|
}
|
|
list = list->next;
|
|
}
|
|
qapi_free_ChardevBackendInfoList(start);
|
|
}
|
|
|
|
void netdev_add_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
size_t len;
|
|
int i;
|
|
|
|
if (nb_args != 2) {
|
|
return;
|
|
}
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
for (i = 0; i < NET_CLIENT_DRIVER__MAX; i++) {
|
|
add_completion_option(rs, str, NetClientDriver_str(i));
|
|
}
|
|
}
|
|
|
|
void device_add_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
GSList *list, *elt;
|
|
size_t len;
|
|
|
|
if (nb_args != 2) {
|
|
return;
|
|
}
|
|
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
list = elt = object_class_get_list(TYPE_DEVICE, false);
|
|
while (elt) {
|
|
const char *name;
|
|
DeviceClass *dc = OBJECT_CLASS_CHECK(DeviceClass, elt->data,
|
|
TYPE_DEVICE);
|
|
name = object_class_get_name(OBJECT_CLASS(dc));
|
|
|
|
if (dc->user_creatable
|
|
&& !strncmp(name, str, len)) {
|
|
readline_add_completion(rs, name);
|
|
}
|
|
elt = elt->next;
|
|
}
|
|
g_slist_free(list);
|
|
}
|
|
|
|
void object_add_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
GSList *list, *elt;
|
|
size_t len;
|
|
|
|
if (nb_args != 2) {
|
|
return;
|
|
}
|
|
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
list = elt = object_class_get_list(TYPE_USER_CREATABLE, false);
|
|
while (elt) {
|
|
const char *name;
|
|
|
|
name = object_class_get_name(OBJECT_CLASS(elt->data));
|
|
if (!strncmp(name, str, len) && strcmp(name, TYPE_USER_CREATABLE)) {
|
|
readline_add_completion(rs, name);
|
|
}
|
|
elt = elt->next;
|
|
}
|
|
g_slist_free(list);
|
|
}
|
|
|
|
static void peripheral_device_del_completion(ReadLineState *rs,
|
|
const char *str, size_t len)
|
|
{
|
|
Object *peripheral = container_get(qdev_get_machine(), "/peripheral");
|
|
GSList *list, *item;
|
|
|
|
list = qdev_build_hotpluggable_device_list(peripheral);
|
|
if (!list) {
|
|
return;
|
|
}
|
|
|
|
for (item = list; item; item = g_slist_next(item)) {
|
|
DeviceState *dev = item->data;
|
|
|
|
if (dev->id && !strncmp(str, dev->id, len)) {
|
|
readline_add_completion(rs, dev->id);
|
|
}
|
|
}
|
|
|
|
g_slist_free(list);
|
|
}
|
|
|
|
void chardev_remove_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
size_t len;
|
|
ChardevInfoList *list, *start;
|
|
|
|
if (nb_args != 2) {
|
|
return;
|
|
}
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
|
|
start = list = qmp_query_chardev(NULL);
|
|
while (list) {
|
|
ChardevInfo *chr = list->value;
|
|
|
|
if (!strncmp(chr->label, str, len)) {
|
|
readline_add_completion(rs, chr->label);
|
|
}
|
|
list = list->next;
|
|
}
|
|
qapi_free_ChardevInfoList(start);
|
|
}
|
|
|
|
static void ringbuf_completion(ReadLineState *rs, const char *str)
|
|
{
|
|
size_t len;
|
|
ChardevInfoList *list, *start;
|
|
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
|
|
start = list = qmp_query_chardev(NULL);
|
|
while (list) {
|
|
ChardevInfo *chr_info = list->value;
|
|
|
|
if (!strncmp(chr_info->label, str, len)) {
|
|
Chardev *chr = qemu_chr_find(chr_info->label);
|
|
if (chr && CHARDEV_IS_RINGBUF(chr)) {
|
|
readline_add_completion(rs, chr_info->label);
|
|
}
|
|
}
|
|
list = list->next;
|
|
}
|
|
qapi_free_ChardevInfoList(start);
|
|
}
|
|
|
|
void ringbuf_write_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
if (nb_args != 2) {
|
|
return;
|
|
}
|
|
ringbuf_completion(rs, str);
|
|
}
|
|
|
|
void device_del_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
size_t len;
|
|
|
|
if (nb_args != 2) {
|
|
return;
|
|
}
|
|
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
peripheral_device_del_completion(rs, str, len);
|
|
}
|
|
|
|
void object_del_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
ObjectPropertyInfoList *list, *start;
|
|
size_t len;
|
|
|
|
if (nb_args != 2) {
|
|
return;
|
|
}
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
|
|
start = list = qmp_qom_list("/objects", NULL);
|
|
while (list) {
|
|
ObjectPropertyInfo *info = list->value;
|
|
|
|
if (!strncmp(info->type, "child<", 5)
|
|
&& !strncmp(info->name, str, len)) {
|
|
readline_add_completion(rs, info->name);
|
|
}
|
|
list = list->next;
|
|
}
|
|
qapi_free_ObjectPropertyInfoList(start);
|
|
}
|
|
|
|
void sendkey_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
int i;
|
|
char *sep;
|
|
size_t len;
|
|
|
|
if (nb_args != 2) {
|
|
return;
|
|
}
|
|
sep = strrchr(str, '-');
|
|
if (sep) {
|
|
str = sep + 1;
|
|
}
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
for (i = 0; i < Q_KEY_CODE__MAX; i++) {
|
|
if (!strncmp(str, QKeyCode_str(i), len)) {
|
|
readline_add_completion(rs, QKeyCode_str(i));
|
|
}
|
|
}
|
|
}
|
|
|
|
void set_link_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
size_t len;
|
|
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
if (nb_args == 2) {
|
|
NetClientState *ncs[MAX_QUEUE_NUM];
|
|
int count, i;
|
|
count = qemu_find_net_clients_except(NULL, ncs,
|
|
NET_CLIENT_DRIVER_NONE,
|
|
MAX_QUEUE_NUM);
|
|
for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
|
|
const char *name = ncs[i]->name;
|
|
if (!strncmp(str, name, len)) {
|
|
readline_add_completion(rs, name);
|
|
}
|
|
}
|
|
} else if (nb_args == 3) {
|
|
add_completion_option(rs, str, "on");
|
|
add_completion_option(rs, str, "off");
|
|
}
|
|
}
|
|
|
|
void netdev_del_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
int len, count, i;
|
|
NetClientState *ncs[MAX_QUEUE_NUM];
|
|
|
|
if (nb_args != 2) {
|
|
return;
|
|
}
|
|
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
count = qemu_find_net_clients_except(NULL, ncs, NET_CLIENT_DRIVER_NIC,
|
|
MAX_QUEUE_NUM);
|
|
for (i = 0; i < MIN(count, MAX_QUEUE_NUM); i++) {
|
|
QemuOpts *opts;
|
|
const char *name = ncs[i]->name;
|
|
if (strncmp(str, name, len)) {
|
|
continue;
|
|
}
|
|
opts = qemu_opts_find(qemu_find_opts_err("netdev", NULL), name);
|
|
if (opts) {
|
|
readline_add_completion(rs, name);
|
|
}
|
|
}
|
|
}
|
|
|
|
void info_trace_events_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
size_t len;
|
|
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
if (nb_args == 2) {
|
|
TraceEventIter iter;
|
|
TraceEvent *ev;
|
|
char *pattern = g_strdup_printf("%s*", str);
|
|
trace_event_iter_init(&iter, pattern);
|
|
while ((ev = trace_event_iter_next(&iter)) != NULL) {
|
|
readline_add_completion(rs, trace_event_get_name(ev));
|
|
}
|
|
g_free(pattern);
|
|
}
|
|
}
|
|
|
|
void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
size_t len;
|
|
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
if (nb_args == 2) {
|
|
TraceEventIter iter;
|
|
TraceEvent *ev;
|
|
char *pattern = g_strdup_printf("%s*", str);
|
|
trace_event_iter_init(&iter, pattern);
|
|
while ((ev = trace_event_iter_next(&iter)) != NULL) {
|
|
readline_add_completion(rs, trace_event_get_name(ev));
|
|
}
|
|
g_free(pattern);
|
|
} else if (nb_args == 3) {
|
|
add_completion_option(rs, str, "on");
|
|
add_completion_option(rs, str, "off");
|
|
}
|
|
}
|
|
|
|
void watchdog_action_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
int i;
|
|
|
|
if (nb_args != 2) {
|
|
return;
|
|
}
|
|
readline_set_completion_index(rs, strlen(str));
|
|
for (i = 0; i < WATCHDOG_ACTION__MAX; i++) {
|
|
add_completion_option(rs, str, WatchdogAction_str(i));
|
|
}
|
|
}
|
|
|
|
void migrate_set_capability_completion(ReadLineState *rs, int nb_args,
|
|
const char *str)
|
|
{
|
|
size_t len;
|
|
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
if (nb_args == 2) {
|
|
int i;
|
|
for (i = 0; i < MIGRATION_CAPABILITY__MAX; i++) {
|
|
const char *name = MigrationCapability_str(i);
|
|
if (!strncmp(str, name, len)) {
|
|
readline_add_completion(rs, name);
|
|
}
|
|
}
|
|
} else if (nb_args == 3) {
|
|
add_completion_option(rs, str, "on");
|
|
add_completion_option(rs, str, "off");
|
|
}
|
|
}
|
|
|
|
void migrate_set_parameter_completion(ReadLineState *rs, int nb_args,
|
|
const char *str)
|
|
{
|
|
size_t len;
|
|
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
if (nb_args == 2) {
|
|
int i;
|
|
for (i = 0; i < MIGRATION_PARAMETER__MAX; i++) {
|
|
const char *name = MigrationParameter_str(i);
|
|
if (!strncmp(str, name, len)) {
|
|
readline_add_completion(rs, name);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void vm_completion(ReadLineState *rs, const char *str)
|
|
{
|
|
size_t len;
|
|
BlockDriverState *bs;
|
|
BdrvNextIterator it;
|
|
|
|
len = strlen(str);
|
|
readline_set_completion_index(rs, len);
|
|
|
|
for (bs = bdrv_first(&it); bs; bs = bdrv_next(&it)) {
|
|
SnapshotInfoList *snapshots, *snapshot;
|
|
AioContext *ctx = bdrv_get_aio_context(bs);
|
|
bool ok = false;
|
|
|
|
aio_context_acquire(ctx);
|
|
if (bdrv_can_snapshot(bs)) {
|
|
ok = bdrv_query_snapshot_info_list(bs, &snapshots, NULL) == 0;
|
|
}
|
|
aio_context_release(ctx);
|
|
if (!ok) {
|
|
continue;
|
|
}
|
|
|
|
snapshot = snapshots;
|
|
while (snapshot) {
|
|
char *completion = snapshot->value->name;
|
|
if (!strncmp(str, completion, len)) {
|
|
readline_add_completion(rs, completion);
|
|
}
|
|
completion = snapshot->value->id;
|
|
if (!strncmp(str, completion, len)) {
|
|
readline_add_completion(rs, completion);
|
|
}
|
|
snapshot = snapshot->next;
|
|
}
|
|
qapi_free_SnapshotInfoList(snapshots);
|
|
}
|
|
|
|
}
|
|
|
|
void delvm_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
if (nb_args == 2) {
|
|
vm_completion(rs, str);
|
|
}
|
|
}
|
|
|
|
void loadvm_completion(ReadLineState *rs, int nb_args, const char *str)
|
|
{
|
|
if (nb_args == 2) {
|
|
vm_completion(rs, str);
|
|
}
|
|
}
|
|
|
|
static void monitor_find_completion_by_table(Monitor *mon,
|
|
const mon_cmd_t *cmd_table,
|
|
char **args,
|
|
int nb_args)
|
|
{
|
|
const char *cmdname;
|
|
int i;
|
|
const char *ptype, *old_ptype, *str, *name;
|
|
const mon_cmd_t *cmd;
|
|
BlockBackend *blk = NULL;
|
|
|
|
if (nb_args <= 1) {
|
|
/* command completion */
|
|
if (nb_args == 0)
|
|
cmdname = "";
|
|
else
|
|
cmdname = args[0];
|
|
readline_set_completion_index(mon->rs, strlen(cmdname));
|
|
for (cmd = cmd_table; cmd->name != NULL; cmd++) {
|
|
cmd_completion(mon, cmdname, cmd->name);
|
|
}
|
|
} else {
|
|
/* find the command */
|
|
for (cmd = cmd_table; cmd->name != NULL; cmd++) {
|
|
if (compare_cmd(args[0], cmd->name)) {
|
|
break;
|
|
}
|
|
}
|
|
if (!cmd->name) {
|
|
return;
|
|
}
|
|
|
|
if (cmd->sub_table) {
|
|
/* do the job again */
|
|
monitor_find_completion_by_table(mon, cmd->sub_table,
|
|
&args[1], nb_args - 1);
|
|
return;
|
|
}
|
|
if (cmd->command_completion) {
|
|
cmd->command_completion(mon->rs, nb_args, args[nb_args - 1]);
|
|
return;
|
|
}
|
|
|
|
ptype = next_arg_type(cmd->args_type);
|
|
for(i = 0; i < nb_args - 2; i++) {
|
|
if (*ptype != '\0') {
|
|
ptype = next_arg_type(ptype);
|
|
while (*ptype == '?')
|
|
ptype = next_arg_type(ptype);
|
|
}
|
|
}
|
|
str = args[nb_args - 1];
|
|
old_ptype = NULL;
|
|
while (*ptype == '-' && old_ptype != ptype) {
|
|
old_ptype = ptype;
|
|
ptype = next_arg_type(ptype);
|
|
}
|
|
switch(*ptype) {
|
|
case 'F':
|
|
/* file completion */
|
|
readline_set_completion_index(mon->rs, strlen(str));
|
|
file_completion(mon, str);
|
|
break;
|
|
case 'B':
|
|
/* block device name completion */
|
|
readline_set_completion_index(mon->rs, strlen(str));
|
|
while ((blk = blk_next(blk)) != NULL) {
|
|
name = blk_name(blk);
|
|
if (str[0] == '\0' ||
|
|
!strncmp(name, str, strlen(str))) {
|
|
readline_add_completion(mon->rs, name);
|
|
}
|
|
}
|
|
break;
|
|
case 's':
|
|
case 'S':
|
|
if (!strcmp(cmd->name, "help|?")) {
|
|
monitor_find_completion_by_table(mon, cmd_table,
|
|
&args[1], nb_args - 1);
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void monitor_find_completion(void *opaque,
|
|
const char *cmdline)
|
|
{
|
|
Monitor *mon = opaque;
|
|
char *args[MAX_ARGS];
|
|
int nb_args, len;
|
|
|
|
/* 1. parse the cmdline */
|
|
if (parse_cmdline(cmdline, &nb_args, args) < 0) {
|
|
return;
|
|
}
|
|
|
|
/* if the line ends with a space, it means we want to complete the
|
|
next arg */
|
|
len = strlen(cmdline);
|
|
if (len > 0 && qemu_isspace(cmdline[len - 1])) {
|
|
if (nb_args >= MAX_ARGS) {
|
|
goto cleanup;
|
|
}
|
|
args[nb_args++] = g_strdup("");
|
|
}
|
|
|
|
/* 2. auto complete according to args */
|
|
monitor_find_completion_by_table(mon, mon->cmd_table, args, nb_args);
|
|
|
|
cleanup:
|
|
free_cmdline_args(args, nb_args);
|
|
}
|
|
|
|
static int monitor_can_read(void *opaque)
|
|
{
|
|
Monitor *mon = opaque;
|
|
|
|
return !atomic_mb_read(&mon->suspend_cnt);
|
|
}
|
|
|
|
/*
|
|
* 1. This function takes ownership of rsp, err, and id.
|
|
* 2. rsp, err, and id may be NULL.
|
|
* 3. If err != NULL then rsp must be NULL.
|
|
*/
|
|
static void monitor_qmp_respond(Monitor *mon, QObject *rsp,
|
|
Error *err, QObject *id)
|
|
{
|
|
QDict *qdict = NULL;
|
|
|
|
if (err) {
|
|
assert(!rsp);
|
|
qdict = qdict_new();
|
|
qdict_put_obj(qdict, "error", qmp_build_error_object(err));
|
|
error_free(err);
|
|
rsp = QOBJECT(qdict);
|
|
}
|
|
|
|
if (rsp) {
|
|
if (id) {
|
|
qdict_put_obj(qobject_to(QDict, rsp), "id", qobject_ref(id));
|
|
}
|
|
|
|
monitor_json_emitter(mon, rsp);
|
|
}
|
|
|
|
qobject_unref(id);
|
|
qobject_unref(rsp);
|
|
}
|
|
|
|
/*
|
|
* Dispatch one single QMP request. The function will free the req_obj
|
|
* and objects inside it before return.
|
|
*/
|
|
static void monitor_qmp_dispatch_one(QMPRequest *req_obj)
|
|
{
|
|
Monitor *mon, *old_mon;
|
|
QObject *req, *rsp = NULL, *id;
|
|
bool need_resume;
|
|
|
|
req = req_obj->req;
|
|
mon = req_obj->mon;
|
|
id = req_obj->id;
|
|
need_resume = req_obj->need_resume;
|
|
|
|
g_free(req_obj);
|
|
|
|
if (trace_event_get_state_backends(TRACE_HANDLE_QMP_COMMAND)) {
|
|
QString *req_json = qobject_to_json(req);
|
|
trace_handle_qmp_command(mon, qstring_get_str(req_json));
|
|
qobject_unref(req_json);
|
|
}
|
|
|
|
old_mon = cur_mon;
|
|
cur_mon = mon;
|
|
|
|
rsp = qmp_dispatch(mon->qmp.commands, req);
|
|
|
|
cur_mon = old_mon;
|
|
|
|
/* Respond if necessary */
|
|
monitor_qmp_respond(mon, rsp, NULL, id);
|
|
|
|
/* This pairs with the monitor_suspend() in handle_qmp_command(). */
|
|
if (need_resume) {
|
|
monitor_resume(mon);
|
|
}
|
|
|
|
qobject_unref(req);
|
|
}
|
|
|
|
/*
|
|
* Pop one QMP request from monitor queues, return NULL if not found.
|
|
* We are using round-robin fashion to pop the request, to avoid
|
|
* processing commands only on a very busy monitor. To achieve that,
|
|
* when we process one request on a specific monitor, we put that
|
|
* monitor to the end of mon_list queue.
|
|
*/
|
|
static QMPRequest *monitor_qmp_requests_pop_one(void)
|
|
{
|
|
QMPRequest *req_obj = NULL;
|
|
Monitor *mon;
|
|
|
|
qemu_mutex_lock(&monitor_lock);
|
|
|
|
QTAILQ_FOREACH(mon, &mon_list, entry) {
|
|
qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
|
|
req_obj = g_queue_pop_head(mon->qmp.qmp_requests);
|
|
qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
|
|
if (req_obj) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (req_obj) {
|
|
/*
|
|
* We found one request on the monitor. Degrade this monitor's
|
|
* priority to lowest by re-inserting it to end of queue.
|
|
*/
|
|
QTAILQ_REMOVE(&mon_list, mon, entry);
|
|
QTAILQ_INSERT_TAIL(&mon_list, mon, entry);
|
|
}
|
|
|
|
qemu_mutex_unlock(&monitor_lock);
|
|
|
|
return req_obj;
|
|
}
|
|
|
|
static void monitor_qmp_bh_dispatcher(void *data)
|
|
{
|
|
QMPRequest *req_obj = monitor_qmp_requests_pop_one();
|
|
|
|
if (req_obj) {
|
|
trace_monitor_qmp_cmd_in_band(qobject_get_try_str(req_obj->id) ?: "");
|
|
monitor_qmp_dispatch_one(req_obj);
|
|
/* Reschedule instead of looping so the main loop stays responsive */
|
|
qemu_bh_schedule(mon_global.qmp_dispatcher_bh);
|
|
}
|
|
}
|
|
|
|
#define QMP_REQ_QUEUE_LEN_MAX (8)
|
|
|
|
static void handle_qmp_command(JSONMessageParser *parser, GQueue *tokens)
|
|
{
|
|
QObject *req, *id = NULL;
|
|
QDict *qdict = NULL;
|
|
MonitorQMP *mon_qmp = container_of(parser, MonitorQMP, parser);
|
|
Monitor *mon = container_of(mon_qmp, Monitor, qmp);
|
|
Error *err = NULL;
|
|
QMPRequest *req_obj;
|
|
|
|
req = json_parser_parse_err(tokens, NULL, &err);
|
|
if (!req && !err) {
|
|
/* json_parser_parse_err() sucks: can fail without setting @err */
|
|
error_setg(&err, QERR_JSON_PARSING);
|
|
}
|
|
if (err) {
|
|
goto err;
|
|
}
|
|
|
|
/* Check against the request in general layout */
|
|
qdict = qmp_dispatch_check_obj(req, &err);
|
|
if (!qdict) {
|
|
goto err;
|
|
}
|
|
|
|
/* Check against OOB specific */
|
|
if (!qmp_cmd_oob_check(mon, qdict, &err)) {
|
|
goto err;
|
|
}
|
|
|
|
id = qdict_get(qdict, "id");
|
|
|
|
/* When OOB is enabled, the "id" field is mandatory. */
|
|
if (qmp_oob_enabled(mon) && !id) {
|
|
error_setg(&err, "Out-Of-Band capability requires that "
|
|
"every command contains an 'id' field");
|
|
goto err;
|
|
}
|
|
|
|
req_obj = g_new0(QMPRequest, 1);
|
|
req_obj->mon = mon;
|
|
req_obj->id = qobject_ref(id);
|
|
req_obj->req = req;
|
|
req_obj->need_resume = false;
|
|
|
|
qdict_del(qdict, "id");
|
|
|
|
if (qmp_is_oob(qdict)) {
|
|
/* Out-Of-Band (OOB) requests are executed directly in parser. */
|
|
trace_monitor_qmp_cmd_out_of_band(qobject_get_try_str(req_obj->id)
|
|
?: "");
|
|
monitor_qmp_dispatch_one(req_obj);
|
|
return;
|
|
}
|
|
|
|
/* Protect qmp_requests and fetching its length. */
|
|
qemu_mutex_lock(&mon->qmp.qmp_queue_lock);
|
|
|
|
/*
|
|
* If OOB is not enabled on the current monitor, we'll emulate the
|
|
* old behavior that we won't process the current monitor any more
|
|
* until it has responded. This helps make sure that as long as
|
|
* OOB is not enabled, the server will never drop any command.
|
|
*/
|
|
if (!qmp_oob_enabled(mon)) {
|
|
monitor_suspend(mon);
|
|
req_obj->need_resume = true;
|
|
} else {
|
|
/* Drop the request if queue is full. */
|
|
if (mon->qmp.qmp_requests->length >= QMP_REQ_QUEUE_LEN_MAX) {
|
|
qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
|
|
qapi_event_send_command_dropped(id,
|
|
COMMAND_DROP_REASON_QUEUE_FULL,
|
|
&error_abort);
|
|
qmp_request_free(req_obj);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Put the request to the end of queue so that requests will be
|
|
* handled in time order. Ownership for req_obj, req, id,
|
|
* etc. will be delivered to the handler side.
|
|
*/
|
|
g_queue_push_tail(mon->qmp.qmp_requests, req_obj);
|
|
qemu_mutex_unlock(&mon->qmp.qmp_queue_lock);
|
|
|
|
/* Kick the dispatcher routine */
|
|
qemu_bh_schedule(mon_global.qmp_dispatcher_bh);
|
|
return;
|
|
|
|
err:
|
|
monitor_qmp_respond(mon, NULL, err, NULL);
|
|
qobject_unref(req);
|
|
}
|
|
|
|
static void monitor_qmp_read(void *opaque, const uint8_t *buf, int size)
|
|
{
|
|
Monitor *mon = opaque;
|
|
|
|
json_message_parser_feed(&mon->qmp.parser, (const char *) buf, size);
|
|
}
|
|
|
|
static void monitor_read(void *opaque, const uint8_t *buf, int size)
|
|
{
|
|
Monitor *old_mon = cur_mon;
|
|
int i;
|
|
|
|
cur_mon = opaque;
|
|
|
|
if (cur_mon->rs) {
|
|
for (i = 0; i < size; i++)
|
|
readline_handle_byte(cur_mon->rs, buf[i]);
|
|
} else {
|
|
if (size == 0 || buf[size - 1] != 0)
|
|
monitor_printf(cur_mon, "corrupted command\n");
|
|
else
|
|
handle_hmp_command(cur_mon, (char *)buf);
|
|
}
|
|
|
|
cur_mon = old_mon;
|
|
}
|
|
|
|
static void monitor_command_cb(void *opaque, const char *cmdline,
|
|
void *readline_opaque)
|
|
{
|
|
Monitor *mon = opaque;
|
|
|
|
monitor_suspend(mon);
|
|
handle_hmp_command(mon, cmdline);
|
|
monitor_resume(mon);
|
|
}
|
|
|
|
int monitor_suspend(Monitor *mon)
|
|
{
|
|
if (monitor_is_hmp_non_interactive(mon)) {
|
|
return -ENOTTY;
|
|
}
|
|
|
|
atomic_inc(&mon->suspend_cnt);
|
|
|
|
if (monitor_is_qmp(mon)) {
|
|
/*
|
|
* Kick iothread to make sure this takes effect. It'll be
|
|
* evaluated again in prepare() of the watch object.
|
|
*/
|
|
aio_notify(iothread_get_aio_context(mon_global.mon_iothread));
|
|
}
|
|
|
|
trace_monitor_suspend(mon, 1);
|
|
return 0;
|
|
}
|
|
|
|
void monitor_resume(Monitor *mon)
|
|
{
|
|
if (monitor_is_hmp_non_interactive(mon)) {
|
|
return;
|
|
}
|
|
|
|
if (atomic_dec_fetch(&mon->suspend_cnt) == 0) {
|
|
if (monitor_is_qmp(mon)) {
|
|
/*
|
|
* For QMP monitors that are running in IOThread, let's
|
|
* kick the thread in case it's sleeping.
|
|
*/
|
|
if (mon->use_io_thr) {
|
|
aio_notify(iothread_get_aio_context(mon_global.mon_iothread));
|
|
}
|
|
} else {
|
|
assert(mon->rs);
|
|
readline_show_prompt(mon->rs);
|
|
}
|
|
}
|
|
trace_monitor_suspend(mon, -1);
|
|
}
|
|
|
|
static QObject *get_qmp_greeting(Monitor *mon)
|
|
{
|
|
QList *cap_list = qlist_new();
|
|
QObject *ver = NULL;
|
|
QMPCapability cap;
|
|
|
|
qmp_marshal_query_version(NULL, &ver, NULL);
|
|
|
|
for (cap = 0; cap < QMP_CAPABILITY__MAX; cap++) {
|
|
if (!mon->use_io_thr && cap == QMP_CAPABILITY_OOB) {
|
|
/* Monitors that are not using IOThread won't support OOB */
|
|
continue;
|
|
}
|
|
qlist_append_str(cap_list, QMPCapability_str(cap));
|
|
}
|
|
|
|
return qobject_from_jsonf("{'QMP': {'version': %p, 'capabilities': %p}}",
|
|
ver, cap_list);
|
|
}
|
|
|
|
static void monitor_qmp_caps_reset(Monitor *mon)
|
|
{
|
|
memset(mon->qmp.qmp_caps, 0, sizeof(mon->qmp.qmp_caps));
|
|
}
|
|
|
|
static void monitor_qmp_event(void *opaque, int event)
|
|
{
|
|
QObject *data;
|
|
Monitor *mon = opaque;
|
|
|
|
switch (event) {
|
|
case CHR_EVENT_OPENED:
|
|
mon->qmp.commands = &qmp_cap_negotiation_commands;
|
|
monitor_qmp_caps_reset(mon);
|
|
data = get_qmp_greeting(mon);
|
|
monitor_json_emitter(mon, data);
|
|
qobject_unref(data);
|
|
mon_refcount++;
|
|
break;
|
|
case CHR_EVENT_CLOSED:
|
|
monitor_qmp_cleanup_queues(mon);
|
|
json_message_parser_destroy(&mon->qmp.parser);
|
|
json_message_parser_init(&mon->qmp.parser, handle_qmp_command);
|
|
mon_refcount--;
|
|
monitor_fdsets_cleanup();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void monitor_event(void *opaque, int event)
|
|
{
|
|
Monitor *mon = opaque;
|
|
|
|
switch (event) {
|
|
case CHR_EVENT_MUX_IN:
|
|
qemu_mutex_lock(&mon->out_lock);
|
|
mon->mux_out = 0;
|
|
qemu_mutex_unlock(&mon->out_lock);
|
|
if (mon->reset_seen) {
|
|
readline_restart(mon->rs);
|
|
monitor_resume(mon);
|
|
monitor_flush(mon);
|
|
} else {
|
|
atomic_mb_set(&mon->suspend_cnt, 0);
|
|
}
|
|
break;
|
|
|
|
case CHR_EVENT_MUX_OUT:
|
|
if (mon->reset_seen) {
|
|
if (atomic_mb_read(&mon->suspend_cnt) == 0) {
|
|
monitor_printf(mon, "\n");
|
|
}
|
|
monitor_flush(mon);
|
|
monitor_suspend(mon);
|
|
} else {
|
|
atomic_inc(&mon->suspend_cnt);
|
|
}
|
|
qemu_mutex_lock(&mon->out_lock);
|
|
mon->mux_out = 1;
|
|
qemu_mutex_unlock(&mon->out_lock);
|
|
break;
|
|
|
|
case CHR_EVENT_OPENED:
|
|
monitor_printf(mon, "QEMU %s monitor - type 'help' for more "
|
|
"information\n", QEMU_VERSION);
|
|
if (!mon->mux_out) {
|
|
readline_restart(mon->rs);
|
|
readline_show_prompt(mon->rs);
|
|
}
|
|
mon->reset_seen = 1;
|
|
mon_refcount++;
|
|
break;
|
|
|
|
case CHR_EVENT_CLOSED:
|
|
mon_refcount--;
|
|
monitor_fdsets_cleanup();
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int
|
|
compare_mon_cmd(const void *a, const void *b)
|
|
{
|
|
return strcmp(((const mon_cmd_t *)a)->name,
|
|
((const mon_cmd_t *)b)->name);
|
|
}
|
|
|
|
static void sortcmdlist(void)
|
|
{
|
|
int array_num;
|
|
int elem_size = sizeof(mon_cmd_t);
|
|
|
|
array_num = sizeof(mon_cmds)/elem_size-1;
|
|
qsort((void *)mon_cmds, array_num, elem_size, compare_mon_cmd);
|
|
|
|
array_num = sizeof(info_cmds)/elem_size-1;
|
|
qsort((void *)info_cmds, array_num, elem_size, compare_mon_cmd);
|
|
}
|
|
|
|
static GMainContext *monitor_get_io_context(void)
|
|
{
|
|
return iothread_get_g_main_context(mon_global.mon_iothread);
|
|
}
|
|
|
|
static AioContext *monitor_get_aio_context(void)
|
|
{
|
|
return iothread_get_aio_context(mon_global.mon_iothread);
|
|
}
|
|
|
|
static void monitor_iothread_init(void)
|
|
{
|
|
mon_global.mon_iothread = iothread_create("mon_iothread",
|
|
&error_abort);
|
|
|
|
/*
|
|
* This MUST be on main loop thread since we have commands that
|
|
* have assumption to be run on main loop thread. It would be
|
|
* nice that one day we can remove this assumption in the future.
|
|
*/
|
|
mon_global.qmp_dispatcher_bh = aio_bh_new(iohandler_get_aio_context(),
|
|
monitor_qmp_bh_dispatcher,
|
|
NULL);
|
|
|
|
/*
|
|
* Unlike the dispatcher BH, this must be run on the monitor IO
|
|
* thread, so that monitors that are using IO thread will make
|
|
* sure read/write operations are all done on the IO thread.
|
|
*/
|
|
mon_global.qmp_respond_bh = aio_bh_new(monitor_get_aio_context(),
|
|
monitor_qmp_bh_responder,
|
|
NULL);
|
|
}
|
|
|
|
void monitor_init_globals(void)
|
|
{
|
|
monitor_init_qmp_commands();
|
|
monitor_qapi_event_init();
|
|
sortcmdlist();
|
|
qemu_mutex_init(&monitor_lock);
|
|
monitor_iothread_init();
|
|
}
|
|
|
|
/* These functions just adapt the readline interface in a typesafe way. We
|
|
* could cast function pointers but that discards compiler checks.
|
|
*/
|
|
static void GCC_FMT_ATTR(2, 3) monitor_readline_printf(void *opaque,
|
|
const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
monitor_vprintf(opaque, fmt, ap);
|
|
va_end(ap);
|
|
}
|
|
|
|
static void monitor_readline_flush(void *opaque)
|
|
{
|
|
monitor_flush(opaque);
|
|
}
|
|
|
|
/*
|
|
* Print to current monitor if we have one, else to stderr.
|
|
* TODO should return int, so callers can calculate width, but that
|
|
* requires surgery to monitor_vprintf(). Left for another day.
|
|
*/
|
|
void error_vprintf(const char *fmt, va_list ap)
|
|
{
|
|
if (cur_mon && !monitor_cur_is_qmp()) {
|
|
monitor_vprintf(cur_mon, fmt, ap);
|
|
} else {
|
|
vfprintf(stderr, fmt, ap);
|
|
}
|
|
}
|
|
|
|
void error_vprintf_unless_qmp(const char *fmt, va_list ap)
|
|
{
|
|
if (cur_mon && !monitor_cur_is_qmp()) {
|
|
monitor_vprintf(cur_mon, fmt, ap);
|
|
} else if (!cur_mon) {
|
|
vfprintf(stderr, fmt, ap);
|
|
}
|
|
}
|
|
|
|
static void monitor_list_append(Monitor *mon)
|
|
{
|
|
qemu_mutex_lock(&monitor_lock);
|
|
QTAILQ_INSERT_HEAD(&mon_list, mon, entry);
|
|
qemu_mutex_unlock(&monitor_lock);
|
|
}
|
|
|
|
static void monitor_qmp_setup_handlers_bh(void *opaque)
|
|
{
|
|
Monitor *mon = opaque;
|
|
GMainContext *context;
|
|
|
|
if (mon->use_io_thr) {
|
|
/*
|
|
* When use_io_thr is set, we use the global shared dedicated
|
|
* IO thread for this monitor to handle input/output.
|
|
*/
|
|
context = monitor_get_io_context();
|
|
/* We should have inited globals before reaching here. */
|
|
assert(context);
|
|
} else {
|
|
/* The default main loop, which is the main thread */
|
|
context = NULL;
|
|
}
|
|
|
|
qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_qmp_read,
|
|
monitor_qmp_event, NULL, mon, context, true);
|
|
monitor_list_append(mon);
|
|
}
|
|
|
|
void monitor_init(Chardev *chr, int flags)
|
|
{
|
|
Monitor *mon = g_malloc(sizeof(*mon));
|
|
bool use_readline = flags & MONITOR_USE_READLINE;
|
|
bool use_oob = flags & MONITOR_USE_OOB;
|
|
|
|
if (use_oob) {
|
|
if (CHARDEV_IS_MUX(chr)) {
|
|
error_report("Monitor Out-Of-Band is not supported with "
|
|
"MUX typed chardev backend");
|
|
exit(1);
|
|
}
|
|
if (use_readline) {
|
|
error_report("Monitor Out-Of-band is only supported by QMP");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
monitor_data_init(mon, false, use_oob);
|
|
|
|
qemu_chr_fe_init(&mon->chr, chr, &error_abort);
|
|
mon->flags = flags;
|
|
if (use_readline) {
|
|
mon->rs = readline_init(monitor_readline_printf,
|
|
monitor_readline_flush,
|
|
mon,
|
|
monitor_find_completion);
|
|
monitor_read_command(mon, 0);
|
|
}
|
|
|
|
if (monitor_is_qmp(mon)) {
|
|
qemu_chr_fe_set_echo(&mon->chr, true);
|
|
json_message_parser_init(&mon->qmp.parser, handle_qmp_command);
|
|
if (mon->use_io_thr) {
|
|
/*
|
|
* Make sure the old iowatch is gone. It's possible when
|
|
* e.g. the chardev is in client mode, with wait=on.
|
|
*/
|
|
remove_fd_in_watch(chr);
|
|
/*
|
|
* We can't call qemu_chr_fe_set_handlers() directly here
|
|
* since during the procedure the chardev will be active
|
|
* and running in monitor iothread, while we'll still do
|
|
* something before returning from it, which is a possible
|
|
* race too. To avoid that, we just create a BH to setup
|
|
* the handlers.
|
|
*/
|
|
aio_bh_schedule_oneshot(monitor_get_aio_context(),
|
|
monitor_qmp_setup_handlers_bh, mon);
|
|
/* We'll add this to mon_list in the BH when setup done */
|
|
return;
|
|
} else {
|
|
qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read,
|
|
monitor_qmp_read, monitor_qmp_event,
|
|
NULL, mon, NULL, true);
|
|
}
|
|
} else {
|
|
qemu_chr_fe_set_handlers(&mon->chr, monitor_can_read, monitor_read,
|
|
monitor_event, NULL, mon, NULL, true);
|
|
}
|
|
|
|
monitor_list_append(mon);
|
|
}
|
|
|
|
void monitor_cleanup(void)
|
|
{
|
|
Monitor *mon, *next;
|
|
|
|
/*
|
|
* We need to explicitly stop the iothread (but not destroy it),
|
|
* cleanup the monitor resources, then destroy the iothread since
|
|
* we need to unregister from chardev below in
|
|
* monitor_data_destroy(), and chardev is not thread-safe yet
|
|
*/
|
|
iothread_stop(mon_global.mon_iothread);
|
|
|
|
/*
|
|
* After we have IOThread to send responses, it's possible that
|
|
* when we stop the IOThread there are still replies queued in the
|
|
* responder queue. Flush all of them. Note that even after this
|
|
* flush it's still possible that out buffer is not flushed.
|
|
* It'll be done in below monitor_flush() as the last resort.
|
|
*/
|
|
monitor_qmp_bh_responder(NULL);
|
|
|
|
qemu_mutex_lock(&monitor_lock);
|
|
QTAILQ_FOREACH_SAFE(mon, &mon_list, entry, next) {
|
|
QTAILQ_REMOVE(&mon_list, mon, entry);
|
|
monitor_flush(mon);
|
|
monitor_data_destroy(mon);
|
|
g_free(mon);
|
|
}
|
|
qemu_mutex_unlock(&monitor_lock);
|
|
|
|
/* QEMUBHs needs to be deleted before destroying the IOThread. */
|
|
qemu_bh_delete(mon_global.qmp_dispatcher_bh);
|
|
mon_global.qmp_dispatcher_bh = NULL;
|
|
qemu_bh_delete(mon_global.qmp_respond_bh);
|
|
mon_global.qmp_respond_bh = NULL;
|
|
|
|
iothread_destroy(mon_global.mon_iothread);
|
|
mon_global.mon_iothread = NULL;
|
|
}
|
|
|
|
QemuOptsList qemu_mon_opts = {
|
|
.name = "mon",
|
|
.implied_opt_name = "chardev",
|
|
.head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head),
|
|
.desc = {
|
|
{
|
|
.name = "mode",
|
|
.type = QEMU_OPT_STRING,
|
|
},{
|
|
.name = "chardev",
|
|
.type = QEMU_OPT_STRING,
|
|
},{
|
|
.name = "pretty",
|
|
.type = QEMU_OPT_BOOL,
|
|
},{
|
|
.name = "x-oob",
|
|
.type = QEMU_OPT_BOOL,
|
|
},
|
|
{ /* end of list */ }
|
|
},
|
|
};
|
|
|
|
#ifndef TARGET_I386
|
|
void qmp_rtc_reset_reinjection(Error **errp)
|
|
{
|
|
error_setg(errp, QERR_FEATURE_DISABLED, "rtc-reset-reinjection");
|
|
}
|
|
|
|
SevInfo *qmp_query_sev(Error **errp)
|
|
{
|
|
error_setg(errp, QERR_FEATURE_DISABLED, "query-sev");
|
|
return NULL;
|
|
}
|
|
|
|
SevLaunchMeasureInfo *qmp_query_sev_launch_measure(Error **errp)
|
|
{
|
|
error_setg(errp, QERR_FEATURE_DISABLED, "query-sev-launch-measure");
|
|
return NULL;
|
|
}
|
|
|
|
SevCapability *qmp_query_sev_capabilities(Error **errp)
|
|
{
|
|
error_setg(errp, QERR_FEATURE_DISABLED, "query-sev-capabilities");
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
#ifndef TARGET_S390X
|
|
void qmp_dump_skeys(const char *filename, Error **errp)
|
|
{
|
|
error_setg(errp, QERR_FEATURE_DISABLED, "dump-skeys");
|
|
}
|
|
#endif
|
|
|
|
#ifndef TARGET_ARM
|
|
GICCapabilityList *qmp_query_gic_capabilities(Error **errp)
|
|
{
|
|
error_setg(errp, QERR_FEATURE_DISABLED, "query-gic-capabilities");
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
HotpluggableCPUList *qmp_query_hotpluggable_cpus(Error **errp)
|
|
{
|
|
MachineState *ms = MACHINE(qdev_get_machine());
|
|
MachineClass *mc = MACHINE_GET_CLASS(ms);
|
|
|
|
if (!mc->has_hotpluggable_cpus) {
|
|
error_setg(errp, QERR_FEATURE_DISABLED, "query-hotpluggable-cpus");
|
|
return NULL;
|
|
}
|
|
|
|
return machine_query_hotpluggable_cpus(ms);
|
|
}
|