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atapi: make change media detection for guests easier

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If you have a guest with a media in the optical drive and you change
it, the windows guest cannot properly recognize this media change.

Windows needs to detect sense "NOT_READY with ASC_MEDIUM_NOT_PRESENT"
before we send sense "UNIT_ATTENTION with ASC_MEDIUM_MAY_HAVE_CHANGED".

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Pavel Hrdina 2012-11-26 16:37:39 +01:00 • committed by Kevin Wolf
parent d3067b020b
commit 0c6f08b0b0
2 changed files with 10 additions and 11 deletions
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6
hw/ide/core.c
View file

@ -2160,12 +2160,6 @@ static int ide_drive_post_load(void *opaque, int version_id)
{
IDEState *s = opaque;
if (version_id < 3) {
if (s->sense_key == UNIT_ATTENTION &&
s->asc == ASC_MEDIUM_MAY_HAVE_CHANGED) {
s->cdrom_changed = 1;
}
}
if (s->identify_set) {
bdrv_set_enable_write_cache(s->bs, !!(s->identify_data[85] & (1 << 5)));
}