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hw: Convert from BlockDriverState to BlockBackend, mostly

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Device models should access their block backends only through the
block-backend.h API.  Convert them, and drop direct includes of
inappropriate headers.

Just four uses of BlockDriverState are left:

* The Xen paravirtual block device backend (xen_disk.c) opens images
  itself when set up via xenbus, bypassing blockdev.c.  I figure it
  should go through qmp_blockdev_add() instead.

* Device model "usb-storage" prompts for keys.  No other device model
  does, and this one probably shouldn't do it, either.

* ide_issue_trim_cb() uses bdrv_aio_discard() instead of
  blk_aio_discard() because it fishes its backend out of a BlockAIOCB,
  which has only the BlockDriverState.

* PC87312State has an unused BlockDriverState[] member.

The next two commits take care of the latter two.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Markus Armbruster 2014-10-07 13:59:18 +02:00 • committed by Kevin Wolf
parent 2a30307f70
commit 4be746345f
110 changed files with 1127 additions and 798 deletions
Download patch file Download diff file Expand all files Collapse all files

6
include/hw/block/block.h
View file

@ -17,7 +17,7 @@
/* Configuration */
typedef struct BlockConf {
BlockDriverState *bs;
BlockBackend *blk;
uint16_t physical_block_size;
uint16_t logical_block_size;
uint16_t min_io_size;
@ -42,7 +42,7 @@ static inline unsigned int get_physical_block_exp(BlockConf *conf)
}
#define DEFINE_BLOCK_PROPERTIES(_state, _conf) \
DEFINE_PROP_DRIVE("drive", _state, _conf.bs), \
DEFINE_PROP_DRIVE("drive", _state, _conf.blk), \
DEFINE_PROP_BLOCKSIZE("logical_block_size", _state, \
_conf.logical_block_size, 512), \
DEFINE_PROP_BLOCKSIZE("physical_block_size", _state, \
@ -66,7 +66,7 @@ void blkconf_geometry(BlockConf *conf, int *trans,
/* Hard disk geometry */
void hd_geometry_guess(BlockDriverState *bs,
void hd_geometry_guess(BlockBackend *blk,
uint32_t *pcyls, uint32_t *pheads, uint32_t *psecs,
int *ptrans);
int hd_bios_chs_auto_trans(uint32_t cyls, uint32_t heads, uint32_t secs);

6
include/hw/block/flash.h
View file

@ -11,7 +11,7 @@ typedef struct pflash_t pflash_t;
pflash_t *pflash_cfi01_register(hwaddr base,
DeviceState *qdev, const char *name,
hwaddr size,
BlockDriverState *bs,
BlockBackend *blk,
uint32_t sector_len, int nb_blocs, int width,
uint16_t id0, uint16_t id1,
uint16_t id2, uint16_t id3, int be);
@ -20,7 +20,7 @@ pflash_t *pflash_cfi01_register(hwaddr base,
pflash_t *pflash_cfi02_register(hwaddr base,
DeviceState *qdev, const char *name,
hwaddr size,
BlockDriverState *bs, uint32_t sector_len,
BlockBackend *blk, uint32_t sector_len,
int nb_blocs, int nb_mappings, int width,
uint16_t id0, uint16_t id1,
uint16_t id2, uint16_t id3,
@ -30,7 +30,7 @@ pflash_t *pflash_cfi02_register(hwaddr base,
MemoryRegion *pflash_cfi01_get_memory(pflash_t *fl);
/* nand.c */
DeviceState *nand_init(BlockDriverState *bdrv, int manf_id, int chip_id);
DeviceState *nand_init(BlockBackend *blk, int manf_id, int chip_id);
void nand_setpins(DeviceState *dev, uint8_t cle, uint8_t ale,
uint8_t ce, uint8_t wp, uint8_t gnd);
void nand_getpins(DeviceState *dev, int *rb);