From 644186572dd3cb4603ef1a6cf83a81fd8c0b7904 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 21 Oct 2020 10:41:18 -0400 Subject: vl: separate qemu_create_early_backends "Early" backends are created before the machine and can be used as machine options. Reviewed-by: Igor Mammedov Signed-off-by: Paolo Bonzini --- softmmu/vl.c | 123 +++++++++++++++++++++++++++++++---------------------------- 1 file changed, 65 insertions(+), 58 deletions(-) (limited to 'softmmu') diff --git a/softmmu/vl.c b/softmmu/vl.c index 91ef218..aafcbec 100644 --- a/softmmu/vl.c +++ b/softmmu/vl.c @@ -117,6 +117,14 @@ #define MAX_VIRTIO_CONSOLES 1 +typedef struct BlockdevOptionsQueueEntry { + BlockdevOptions *bdo; + Location loc; + QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry; +} BlockdevOptionsQueueEntry; + +typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue; + static const char *cpu_option; static const char *data_dir[16]; static int data_dir_idx; @@ -126,7 +134,9 @@ static const char *boot_once; static const char *incoming; static const char *loadvm; static int display_remote; +static int snapshot; static QemuPluginList plugin_list = QTAILQ_HEAD_INITIALIZER(plugin_list); +static BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue); static bool nographic = false; enum vga_retrace_method vga_retrace_method = VGA_RETRACE_DUMB; static int mem_prealloc; /* force preallocation of physical target memory */ @@ -1043,14 +1053,6 @@ static void default_drive(int enable, int snapshot, BlockInterfaceType type, } -typedef struct BlockdevOptionsQueueEntry { - BlockdevOptions *bdo; - Location loc; - QSIMPLEQ_ENTRY(BlockdevOptionsQueueEntry) entry; -} BlockdevOptionsQueueEntry; - -typedef QSIMPLEQ_HEAD(, BlockdevOptionsQueueEntry) BlockdevOptionsQueue; - static void configure_blockdev(BlockdevOptionsQueue *bdo_queue, MachineClass *machine_class, int snapshot) { @@ -2644,7 +2646,7 @@ static int machine_set_property(void *opaque, * cannot be created here, as it depends on the chardev * already existing. */ -static bool object_create_initial(const char *type, QemuOpts *opts) +static bool object_create_early(const char *type, QemuOpts *opts) { if (user_creatable_print_help(type, opts)) { exit(0); @@ -2700,6 +2702,58 @@ static bool object_create_initial(const char *type, QemuOpts *opts) return true; } +static void qemu_create_early_backends(void) +{ + MachineClass *machine_class = MACHINE_GET_CLASS(current_machine); + + if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) { + error_report("-alt-grab and -ctrl-grab are only valid " + "for SDL, ignoring option"); + } + if (dpy.has_window_close && + (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) { + error_report("-no-quit is only valid for GTK and SDL, " + "ignoring option"); + } + + qemu_display_early_init(&dpy); + qemu_console_early_init(); + + if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) { +#if defined(CONFIG_OPENGL) + error_report("OpenGL is not supported by the display"); +#else + error_report("OpenGL support is disabled"); +#endif + exit(1); + } + + qemu_opts_foreach(qemu_find_opts("object"), + user_creatable_add_opts_foreach, + object_create_early, &error_fatal); + + /* spice needs the timers to be initialized by this point */ + /* spice must initialize before audio as it changes the default auiodev */ + /* spice must initialize before chardevs (for spicevmc and spiceport) */ + qemu_spice.init(); + + qemu_opts_foreach(qemu_find_opts("chardev"), + chardev_init_func, NULL, &error_fatal); + +#ifdef CONFIG_VIRTFS + qemu_opts_foreach(qemu_find_opts("fsdev"), + fsdev_init_func, NULL, &error_fatal); +#endif + + /* + * Note: we need to create audio and block backends before + * machine_set_property(), so machine properties can refer to + * them. + */ + configure_blockdev(&bdo_queue, machine_class, snapshot); + audio_init_audiodevs(); +} + /* * The remainder of object creation happens after the @@ -2707,7 +2761,7 @@ static bool object_create_initial(const char *type, QemuOpts *opts) */ static bool object_create_delayed(const char *type, QemuOpts *opts) { - return !object_create_initial(type, opts); + return !object_create_early(type, opts); } @@ -3313,7 +3367,6 @@ static void qemu_machine_creation_done(void) void qemu_init(int argc, char **argv, char **envp) { - int snapshot = 0; QemuOpts *opts, *machine_opts; QemuOpts *icount_opts = NULL, *accel_opts = NULL; QemuOptsList *olist; @@ -3326,7 +3379,6 @@ void qemu_init(int argc, char **argv, char **envp) FILE *vmstate_dump_file = NULL; Error *err = NULL; bool have_custom_ram_size; - BlockdevOptionsQueue bdo_queue = QSIMPLEQ_HEAD_INITIALIZER(bdo_queue); qemu_add_opts(&qemu_drive_opts); qemu_add_drive_opts(&qemu_legacy_drive_opts); @@ -4298,52 +4350,7 @@ void qemu_init(int argc, char **argv, char **envp) qemu_disable_default_devices(); qemu_create_default_devices(); - if ((alt_grab || ctrl_grab) && dpy.type != DISPLAY_TYPE_SDL) { - error_report("-alt-grab and -ctrl-grab are only valid " - "for SDL, ignoring option"); - } - if (dpy.has_window_close && - (dpy.type != DISPLAY_TYPE_GTK && dpy.type != DISPLAY_TYPE_SDL)) { - error_report("-no-quit is only valid for GTK and SDL, " - "ignoring option"); - } - - qemu_display_early_init(&dpy); - qemu_console_early_init(); - - if (dpy.has_gl && dpy.gl != DISPLAYGL_MODE_OFF && display_opengl == 0) { -#if defined(CONFIG_OPENGL) - error_report("OpenGL is not supported by the display"); -#else - error_report("OpenGL support is disabled"); -#endif - exit(1); - } - - qemu_opts_foreach(qemu_find_opts("object"), - user_creatable_add_opts_foreach, - object_create_initial, &error_fatal); - - /* spice needs the timers to be initialized by this point */ - /* spice must initialize before audio as it changes the default auiodev */ - /* spice must initialize before chardevs (for spicevmc and spiceport) */ - qemu_spice.init(); - - qemu_opts_foreach(qemu_find_opts("chardev"), - chardev_init_func, NULL, &error_fatal); - -#ifdef CONFIG_VIRTFS - qemu_opts_foreach(qemu_find_opts("fsdev"), - fsdev_init_func, NULL, &error_fatal); -#endif - - /* - * Note: we need to create audio and block backends before - * machine_set_property(), so machine properties can refer to - * them. - */ - configure_blockdev(&bdo_queue, machine_class, snapshot); - audio_init_audiodevs(); + qemu_create_early_backends(); machine_opts = qemu_get_machine_opts(); qemu_opt_foreach(machine_opts, machine_set_property, current_machine, -- cgit v1.1