From 7d99f4c1b5d12de7644a5bd8c3d46bff05c9ca7c Mon Sep 17 00:00:00 2001 From: Matthew Rosato Date: Wed, 15 Jul 2015 14:52:32 -0400 Subject: [PATCH] scsi: Handle no media case for scsi_get_configuration Currently, scsi_get_configuration always returns a current profile (DVD or CD), even when there is actually no media present. By comparison, ide/atapi uses a default profile of 0 (MMC_PROFILE_NONE) for this case and checks for tray_open, so let's do the same for scsi. This fixes a problem I'm seeing with Fedora 22 guests where systemd cdrom_id fails to unmount after a QEMU-initiated eject against a scsi cdrom device because it believes the media is still present (but unreadable). Signed-off-by: Matthew Rosato Message-Id: <1436986352-10695-1-git-send-email-mjrosato@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini --- hw/scsi/scsi-disk.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/hw/scsi/scsi-disk.c b/hw/scsi/scsi-disk.c index 54d71f4c03..64f0694734 100644 --- a/hw/scsi/scsi-disk.c +++ b/hw/scsi/scsi-disk.c @@ -765,6 +765,9 @@ static inline bool media_is_dvd(SCSIDiskState *s) if (!blk_is_inserted(s->qdev.conf.blk)) { return false; } + if (s->tray_open) { + return false; + } blk_get_geometry(s->qdev.conf.blk, &nb_sectors); return nb_sectors > CD_MAX_SECTORS; } @@ -778,6 +781,9 @@ static inline bool media_is_cd(SCSIDiskState *s) if (!blk_is_inserted(s->qdev.conf.blk)) { return false; } + if (s->tray_open) { + return false; + } blk_get_geometry(s->qdev.conf.blk, &nb_sectors); return nb_sectors <= CD_MAX_SECTORS; } @@ -975,7 +981,15 @@ static int scsi_get_configuration(SCSIDiskState *s, uint8_t *outbuf) if (s->qdev.type != TYPE_ROM) { return -1; } - current = media_is_dvd(s) ? MMC_PROFILE_DVD_ROM : MMC_PROFILE_CD_ROM; + + if (media_is_dvd(s)) { + current = MMC_PROFILE_DVD_ROM; + } else if (media_is_cd(s)) { + current = MMC_PROFILE_CD_ROM; + } else { + current = MMC_PROFILE_NONE; + } + memset(outbuf, 0, 40); stl_be_p(&outbuf[0], 36); /* Bytes after the data length field */ stw_be_p(&outbuf[6], current);