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vl: move prelaunch part of qemu_init to new functions
The final part of qemu_init, starting with the completion of board init, is already relatively clean. Split it out of qemu_init so that qemu_init keeps only the messy parts. Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini
parent
efd7ab22fb
commit
d8e4de41c9
249
softmmu/vl.c
249
softmmu/vl.c
@ -120,6 +120,9 @@
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static const char *cpu_option;
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static const char *data_dir[16];
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static int data_dir_idx;
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static const char *mem_path;
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static const char *boot_order;
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static const char *boot_once;
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enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB;
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int display_opengl;
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const char* keyboard_layout = NULL;
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@ -3002,6 +3005,134 @@ static void qemu_init_subsystems(void)
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socket_init();
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}
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/*
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* Called after leaving preconfig state. From here on runstate is
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* RUN_STATE_PRELAUNCH or RUN_STATE_INMIGRATE.
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*/
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static void qemu_init_board(void)
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{
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MachineClass *machine_class = MACHINE_GET_CLASS(current_machine);
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if (machine_class->default_ram_id && current_machine->ram_size &&
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numa_uses_legacy_mem() && !current_machine->ram_memdev_id) {
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create_default_memdev(current_machine, mem_path);
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}
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machine_run_board_init(current_machine);
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/*
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* TODO To drop support for deprecated bogus if=..., move
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* drive_check_orphaned() here, replacing this call. Also drop
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* its deprecation warning, along with DriveInfo member
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* @claimed_by_board.
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*/
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drive_mark_claimed_by_board();
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realtime_init();
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if (hax_enabled()) {
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/* FIXME: why isn't cpu_synchronize_all_post_init enough? */
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hax_sync_vcpus();
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}
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}
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static void qemu_create_cli_devices(void)
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{
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soundhw_init();
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qemu_opts_foreach(qemu_find_opts("fw_cfg"),
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parse_fw_cfg, fw_cfg_find(), &error_fatal);
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/* init USB devices */
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if (machine_usb(current_machine)) {
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if (foreach_device_config(DEV_USB, usb_parse) < 0)
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exit(1);
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}
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/* init generic devices */
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rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
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qemu_opts_foreach(qemu_find_opts("device"),
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device_init_func, NULL, &error_fatal);
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rom_reset_order_override();
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}
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static void qemu_machine_creation_done(void)
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{
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DisplayState *ds;
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cpu_synchronize_all_post_init();
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/* Did we create any drives that we failed to create a device for? */
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drive_check_orphaned();
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/* Don't warn about the default network setup that you get if
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* no command line -net or -netdev options are specified. There
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* are two cases that we would otherwise complain about:
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* (1) board doesn't support a NIC but the implicit "-net nic"
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* requested one
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* (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
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* sets up a nic that isn't connected to anything.
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*/
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if (!default_net && (!qtest_enabled() || has_defaults)) {
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net_check_clients();
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}
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if (boot_once) {
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qemu_boot_set(boot_once, &error_fatal);
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qemu_register_reset(restore_boot_order, g_strdup(boot_order));
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}
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/* init local displays */
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ds = init_displaystate();
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qemu_display_init(ds, &dpy);
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/* must be after terminal init, SDL library changes signal handlers */
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os_setup_signal_handling();
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/* init remote displays */
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#ifdef CONFIG_VNC
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qemu_opts_foreach(qemu_find_opts("vnc"),
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vnc_init_func, NULL, &error_fatal);
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#endif
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if (using_spice) {
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qemu_spice.display_init();
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}
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if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
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exit(1);
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}
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qdev_machine_creation_done();
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/* TODO: once all bus devices are qdevified, this should be done
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* when bus is created by qdev.c */
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/*
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* TODO: If we had a main 'reset container' that the whole system
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* lived in, we could reset that using the multi-phase reset
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* APIs. For the moment, we just reset the sysbus, which will cause
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* all devices hanging off it (and all their child buses, recursively)
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* to be reset. Note that this will *not* reset any Device objects
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* which are not attached to some part of the qbus tree!
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*/
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qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
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qemu_run_machine_init_done_notifiers();
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if (rom_check_and_register_reset() != 0) {
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error_report("rom check and register reset failed");
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exit(1);
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}
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replay_start();
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/* This checkpoint is required by replay to separate prior clock
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reading from the other reads, because timer polling functions query
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clock values from the log. */
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replay_checkpoint(CHECKPOINT_RESET);
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qemu_system_reset(SHUTDOWN_CAUSE_NONE);
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register_global_state();
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}
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void qemu_init(int argc, char **argv, char **envp)
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{
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int i;
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@ -3009,9 +3140,6 @@ void qemu_init(int argc, char **argv, char **envp)
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int linux_boot;
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const char *initrd_filename;
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const char *kernel_filename, *kernel_cmdline;
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const char *boot_order = NULL;
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const char *boot_once = NULL;
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DisplayState *ds;
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QemuOpts *opts, *machine_opts;
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QemuOpts *icount_opts = NULL, *accel_opts = NULL;
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QemuOptsList *olist;
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@ -3028,7 +3156,6 @@ void qemu_init(int argc, char **argv, char **envp)
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uint64_t ram_slots = 0;
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FILE *vmstate_dump_file = NULL;
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Error *err = NULL;
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const char *mem_path = NULL;
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bool have_custom_ram_size;
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BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue);
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QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list);
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@ -4351,117 +4478,10 @@ void qemu_init(int argc, char **argv, char **envp)
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/* do monitor/qmp handling at preconfig state if requested */
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qemu_main_loop();
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if (machine_class->default_ram_id && current_machine->ram_size &&
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numa_uses_legacy_mem() && !current_machine->ram_memdev_id) {
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create_default_memdev(current_machine, mem_path);
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}
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qemu_init_board();
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qemu_create_cli_devices();
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qemu_machine_creation_done();
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/* from here on runstate is RUN_STATE_PRELAUNCH */
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machine_run_board_init(current_machine);
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/*
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* TODO To drop support for deprecated bogus if=..., move
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* drive_check_orphaned() here, replacing this call. Also drop
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* its deprecation warning, along with DriveInfo member
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* @claimed_by_board.
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*/
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drive_mark_claimed_by_board();
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realtime_init();
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soundhw_init();
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if (hax_enabled()) {
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hax_sync_vcpus();
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}
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qemu_opts_foreach(qemu_find_opts("fw_cfg"),
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parse_fw_cfg, fw_cfg_find(), &error_fatal);
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/* init USB devices */
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if (machine_usb(current_machine)) {
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if (foreach_device_config(DEV_USB, usb_parse) < 0)
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exit(1);
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}
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/* init generic devices */
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rom_set_order_override(FW_CFG_ORDER_OVERRIDE_DEVICE);
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qemu_opts_foreach(qemu_find_opts("device"),
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device_init_func, NULL, &error_fatal);
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cpu_synchronize_all_post_init();
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rom_reset_order_override();
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/* Did we create any drives that we failed to create a device for? */
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drive_check_orphaned();
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/* Don't warn about the default network setup that you get if
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* no command line -net or -netdev options are specified. There
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* are two cases that we would otherwise complain about:
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* (1) board doesn't support a NIC but the implicit "-net nic"
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* requested one
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* (2) CONFIG_SLIRP not set, in which case the implicit "-net nic"
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* sets up a nic that isn't connected to anything.
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*/
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if (!default_net && (!qtest_enabled() || has_defaults)) {
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net_check_clients();
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}
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if (boot_once) {
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qemu_boot_set(boot_once, &error_fatal);
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qemu_register_reset(restore_boot_order, g_strdup(boot_order));
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}
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/* init local displays */
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ds = init_displaystate();
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qemu_display_init(ds, &dpy);
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/* must be after terminal init, SDL library changes signal handlers */
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os_setup_signal_handling();
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/* init remote displays */
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#ifdef CONFIG_VNC
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qemu_opts_foreach(qemu_find_opts("vnc"),
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vnc_init_func, NULL, &error_fatal);
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#endif
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if (using_spice) {
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qemu_spice.display_init();
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}
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if (foreach_device_config(DEV_GDB, gdbserver_start) < 0) {
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exit(1);
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}
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qdev_machine_creation_done();
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/* TODO: once all bus devices are qdevified, this should be done
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* when bus is created by qdev.c */
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/*
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* TODO: If we had a main 'reset container' that the whole system
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* lived in, we could reset that using the multi-phase reset
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* APIs. For the moment, we just reset the sysbus, which will cause
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* all devices hanging off it (and all their child buses, recursively)
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* to be reset. Note that this will *not* reset any Device objects
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* which are not attached to some part of the qbus tree!
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*/
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qemu_register_reset(resettable_cold_reset_fn, sysbus_get_default());
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qemu_run_machine_init_done_notifiers();
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if (rom_check_and_register_reset() != 0) {
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error_report("rom check and register reset failed");
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exit(1);
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}
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replay_start();
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/* This checkpoint is required by replay to separate prior clock
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reading from the other reads, because timer polling functions query
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clock values from the log. */
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replay_checkpoint(CHECKPOINT_RESET);
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qemu_system_reset(SHUTDOWN_CAUSE_NONE);
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register_global_state();
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if (loadvm) {
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Error *local_err = NULL;
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if (load_snapshot(loadvm, &local_err) < 0) {
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@ -4480,7 +4500,6 @@ void qemu_init(int argc, char **argv, char **envp)
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dump_vmstate_json_to_file(vmstate_dump_file);
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exit(0);
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}
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if (incoming) {
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Error *local_err = NULL;
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qemu_start_incoming_migration(incoming, &local_err);
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