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| author | Amit Shah <amit.shah@redhat.com> | 2011-04-28 20:04:41 +0530 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-05-03 11:29:21 +0200 |
| commit | 4a737d14d0788412eead23330b554eb75900af04 (patch) | |
| tree | eedc7bff3a7e8ee598e47cb0a437e859bc917379 /hw | |
| parent | a7acf552e2cfb42ea1b27966b7f318eca2cc478a (diff) | |
| download | qemu-4a737d14d0788412eead23330b554eb75900af04.zip qemu-4a737d14d0788412eead23330b554eb75900af04.tar.gz qemu-4a737d14d0788412eead23330b554eb75900af04.tar.bz2 | |
atapi: Explain why we need a 'media not present' state
After the re-org of the atapi code, it might not be intuitive for a
reader of the code to understand why we're inserting a 'media not
present' state between cd changes.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/ide/atapi.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/hw/ide/atapi.c b/hw/ide/atapi.c index 86b18d8..58febc0 100644 --- a/hw/ide/atapi.c +++ b/hw/ide/atapi.c @@ -1106,7 +1106,13 @@ void ide_atapi_cmd(IDEState *s) ide_atapi_cmd_check_status(s); return; } - + /* + * When a CD gets changed, we have to report an ejected state and + * then a loaded state to guests so that they detect tray + * open/close and media change events. Guests that do not use + * GET_EVENT_STATUS_NOTIFICATION to detect such tray open/close + * states rely on this behavior. + */ if (bdrv_is_inserted(s->bs) && s->cdrom_changed) { ide_atapi_cmd_error(s, SENSE_NOT_READY, ASC_MEDIUM_NOT_PRESENT); |