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monitor: Rework early disk password inquiry (Jan Kiszka)

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Reading the passwords for encrypted hard disks during early startup is
broken (I guess for quiet a while now):
 - No monitor terminal is ready for input at this point
 - Forcing all mux'ed terminals into monitor mode can confuse other
   users of that channels

To overcome these issues and to lay the ground for a clean decoupling of
monitor terminals, this patch changes the initial password inquiry as
follows:
 - Prevent autostart if there is some encrypted disk
 - Once the user tries to resume the VM, prompt for all missing
   passwords
 - Only resume if all passwords were accepted

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6707 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
aliguori 2009-03-05 23:01:01 +00:00
parent 430eb509d2
commit c0f4ce7751
8 changed files with 85 additions and 65 deletions
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3
console.h
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@ -302,10 +302,9 @@ void term_printf(const char *fmt, ...) __attribute__ ((__format__ (__printf__, 1
void term_print_filename(const char *filename);
void term_flush(void);
void term_print_help(void);
void monitor_readline(const char *prompt, int is_password,
char *buf, int buf_size);
void monitor_suspend(void);
void monitor_resume(void);
int monitor_read_bdrv_key(BlockDriverState *bs);
/* readline.c */
typedef void ReadLineFunc(void *opaque, const char *str);