qemu-e2k/include/sysemu/blockdev.h

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/*
* QEMU host block devices
*
* Copyright (c) 2003-2008 Fabrice Bellard
*
* This work is licensed under the terms of the GNU GPL, version 2 or
* later. See the COPYING file in the top-level directory.
*/
#ifndef BLOCKDEV_H
#define BLOCKDEV_H
#include "block/block.h"
#include "qapi/error.h"
#include "qemu/queue.h"
void blockdev_mark_auto_del(BlockDriverState *bs);
void blockdev_auto_del(BlockDriverState *bs);
typedef enum {
IF_DEFAULT = -1, /* for use with drive_add() only */
Support default block interfaces per QEMUMachine There are QEMUMachines that have neither IF_IDE nor IF_SCSI as a default/standard interface to their block devices / drives. Therefore, this patch introduces a new field default_block_type per QEMUMachine struct. The prior use_scsi field becomes thereby obsolete and is replaced through .default_block_type = IF_SCSI. This patch also changes the default for s390x to IF_VIRTIO and removes an early hack that converts IF_IDE drives. Other parties have already claimed interest (e.g. IF_SD for exynos) To create a sane default, for machines that dont specify a default_block_type, this patch makes IF_IDE = 0 and IF_NONE = 1. I checked all users of IF_NONE (blockdev.c and ww/device-hotplug.c) as well as IF_IDE and it seems that it is ok to change the defines - in other words, I found no obvious (to me) assumption in the code regarding IF_NONE==0. IF_NONE is only set if there is an explicit if=none. Without if=* the interface becomes IF_DEFAULT. I would suggest to have some additional care, e.g. by letting this patch sit some days in the block tree. Based on an initial patch from Einar Lueck <elelueck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> CC: Igor Mitsyanko <i.mitsyanko@samsung.com> CC: Markus Armbruster <armbru@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Alexander Graf <agraf@suse.de> Acked-by: Igor Mitsyanko <i.mitsyanko@samsung.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-11-20 15:30:34 +01:00
/*
* IF_IDE must be zero, because we want QEMUMachine member
* block_default_type to default-initialize to IF_IDE
*/
IF_IDE = 0,
IF_NONE,
Support default block interfaces per QEMUMachine There are QEMUMachines that have neither IF_IDE nor IF_SCSI as a default/standard interface to their block devices / drives. Therefore, this patch introduces a new field default_block_type per QEMUMachine struct. The prior use_scsi field becomes thereby obsolete and is replaced through .default_block_type = IF_SCSI. This patch also changes the default for s390x to IF_VIRTIO and removes an early hack that converts IF_IDE drives. Other parties have already claimed interest (e.g. IF_SD for exynos) To create a sane default, for machines that dont specify a default_block_type, this patch makes IF_IDE = 0 and IF_NONE = 1. I checked all users of IF_NONE (blockdev.c and ww/device-hotplug.c) as well as IF_IDE and it seems that it is ok to change the defines - in other words, I found no obvious (to me) assumption in the code regarding IF_NONE==0. IF_NONE is only set if there is an explicit if=none. Without if=* the interface becomes IF_DEFAULT. I would suggest to have some additional care, e.g. by letting this patch sit some days in the block tree. Based on an initial patch from Einar Lueck <elelueck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> CC: Igor Mitsyanko <i.mitsyanko@samsung.com> CC: Markus Armbruster <armbru@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Alexander Graf <agraf@suse.de> Acked-by: Igor Mitsyanko <i.mitsyanko@samsung.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-11-20 15:30:34 +01:00
IF_SCSI, IF_FLOPPY, IF_PFLASH, IF_MTD, IF_SD, IF_VIRTIO, IF_XEN,
IF_COUNT
} BlockInterfaceType;
struct DriveInfo {
BlockDriverState *bdrv;
char *id;
const char *devaddr;
BlockInterfaceType type;
int bus;
int unit;
int auto_del; /* see blockdev_mark_auto_del() */
int media_cd;
int cyls, heads, secs, trans;
QemuOpts *opts;
char *serial;
QTAILQ_ENTRY(DriveInfo) next;
int refcount;
};
DriveInfo *drive_get(BlockInterfaceType type, int bus, int unit);
DriveInfo *drive_get_by_index(BlockInterfaceType type, int index);
int drive_get_max_bus(BlockInterfaceType type);
DriveInfo *drive_get_next(BlockInterfaceType type);
void drive_get_ref(DriveInfo *dinfo);
void drive_put_ref(DriveInfo *dinfo);
DriveInfo *drive_get_by_blockdev(BlockDriverState *bs);
QemuOpts *drive_def(const char *optstr);
QemuOpts *drive_add(BlockInterfaceType type, int index, const char *file,
const char *optstr);
Support default block interfaces per QEMUMachine There are QEMUMachines that have neither IF_IDE nor IF_SCSI as a default/standard interface to their block devices / drives. Therefore, this patch introduces a new field default_block_type per QEMUMachine struct. The prior use_scsi field becomes thereby obsolete and is replaced through .default_block_type = IF_SCSI. This patch also changes the default for s390x to IF_VIRTIO and removes an early hack that converts IF_IDE drives. Other parties have already claimed interest (e.g. IF_SD for exynos) To create a sane default, for machines that dont specify a default_block_type, this patch makes IF_IDE = 0 and IF_NONE = 1. I checked all users of IF_NONE (blockdev.c and ww/device-hotplug.c) as well as IF_IDE and it seems that it is ok to change the defines - in other words, I found no obvious (to me) assumption in the code regarding IF_NONE==0. IF_NONE is only set if there is an explicit if=none. Without if=* the interface becomes IF_DEFAULT. I would suggest to have some additional care, e.g. by letting this patch sit some days in the block tree. Based on an initial patch from Einar Lueck <elelueck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> CC: Igor Mitsyanko <i.mitsyanko@samsung.com> CC: Markus Armbruster <armbru@redhat.com> CC: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Alexander Graf <agraf@suse.de> Acked-by: Igor Mitsyanko <i.mitsyanko@samsung.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-11-20 15:30:34 +01:00
DriveInfo *drive_init(QemuOpts *arg, BlockInterfaceType block_default_type);
/* device-hotplug */
DriveInfo *add_init_drive(const char *opts);
void qmp_change_blockdev(const char *device, const char *filename,
bool has_format, const char *format, Error **errp);
void do_commit(Monitor *mon, const QDict *qdict);
int do_drive_del(Monitor *mon, const QDict *qdict, QObject **ret_data);
#endif