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chardev: do not use machine_init_done

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machine_init_done is not the right flag to check when preconfig
is taken into account; for example "./qemu-system-x86_64 -serial
mon:stdio -preconfig" does not print the QEMU monitor header until after
exit_preconfig.  Add back a custom bool for mux character devices.  This
partially undoes commit c7278b4355 ("chardev: introduce chr_machine_done
hook", 2018-03-12), but it keeps the cleaner logic using a function
pointer in ChardevClass.

Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2020-11-30 13:44:49 -05:00
parent f66dc8737c
commit 5a1ee6077b
9 changed files with 43 additions and 88 deletions
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6
include/chardev/char.h
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@ -270,8 +270,7 @@ struct ChardevClass {
void (*chr_set_echo)(Chardev *chr, bool echo);
void (*chr_set_fe_open)(Chardev *chr, int fe_open);
void (*chr_be_event)(Chardev *s, QEMUChrEvent event);
/* Return 0 if succeeded, 1 if failed */
int (*chr_machine_done)(Chardev *chr);
void (*chr_options_parsed)(Chardev *chr);
};
Chardev *qemu_chardev_new(const char *id, const char *typename,
@ -283,6 +282,9 @@ extern int term_escape_char;
GSource *qemu_chr_timeout_add_ms(Chardev *chr, guint ms,
GSourceFunc func, void *private);
void suspend_mux_open(void);
void resume_mux_open(void);
/* console.c */
void qemu_chr_parse_vc(QemuOpts *opts, ChardevBackend *backend, Error **errp);