a66c9dc734
When users use command line options like -hda, -cdrom, or even -drive if=ide, it is up to the board initialization routines to pick up these drives and create backing devices for them. Some boards, like Q35, have not been doing this. However, there is no warning explaining why certain drive specifications are just silently ignored, so this function adds a check to print some warnings to assist users in debugging these sorts of issues in the future. This patch will not warn about drives added with if_none, for which it is not possible to tell in advance if the omission of a backing device is an issue. A warning in these cases is considered appropriate. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-id: 1412187569-23452-2-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/*
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* QEMU host block devices
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or
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* later. See the COPYING file in the top-level directory.
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*/
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#ifndef BLOCKDEV_H
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#define BLOCKDEV_H
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#include "block/block.h"
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#include "qapi/error.h"
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#include "qemu/queue.h"
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void blockdev_mark_auto_del(BlockDriverState *bs);
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void blockdev_auto_del(BlockDriverState *bs);
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typedef enum {
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IF_DEFAULT = -1, /* for use with drive_add() only */
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/*
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* IF_IDE must be zero, because we want QEMUMachine member
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* block_default_type to default-initialize to IF_IDE
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*/
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IF_IDE = 0,
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IF_NONE,
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IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN,
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IF_COUNT
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} BlockInterfaceType;
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struct DriveInfo {
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BlockDriverState *bdrv;
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char *id;
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const char *devaddr;
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BlockInterfaceType type;
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int bus;
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int unit;
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int auto_del; /* see blockdev_mark_auto_del() */
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bool enable_auto_del; /* Only for legacy drive_new() */
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bool is_default; /* Added by default_drive() ? */
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int media_cd;
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int cyls, heads, secs, trans;
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QemuOpts *opts;
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char *serial;
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QTAILQ_ENTRY(DriveInfo) next;
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};
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DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
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bool drive_check_orphaned(void);
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DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
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int drive_get_max_bus(BlockInterfaceType type);
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DriveInfo *drive_get_next(BlockInterfaceType type);
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DriveInfo *drive_get_by_blockdev(BlockDriverState *bs);
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QemuOpts *drive_def(const char *optstr);
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QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
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const char *optstr);
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DriveInfo *drive_new(QemuOpts *arg, BlockInterfaceType block_default_type);
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void drive_del(DriveInfo *dinfo);
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void drive_info_del(DriveInfo *dinfo);
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/* device-hotplug */
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DriveInfo *add_init_drive(const char *opts);
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void qmp_change_blockdev(const char *device, const char *filename,
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const char *format, Error **errp);
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void do_commit(Monitor *mon, const QDict *qdict);
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int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data);
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#endif
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