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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
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10
hw/arm/musicpal.c
View file

@ -18,12 +18,10 @@
#include "hw/char/serial.h"
#include "qemu/timer.h"
#include "hw/ptimer.h"
#include "block/block.h"
#include "hw/block/flash.h"
#include "ui/console.h"
#include "hw/i2c/i2c.h"
#include "sysemu/block-backend.h"
#include "sysemu/blockdev.h"
#include "exec/address-spaces.h"
#include "ui/pixel_ops.h"
@ -1633,9 +1631,9 @@ static void musicpal_init(MachineState *machine)
/* Register flash */
dinfo = drive_get(IF_PFLASH, 0, 0);
if (dinfo) {
BlockDriverState *bs = blk_bs(blk_by_legacy_dinfo(dinfo));
BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
flash_size = bdrv_getlength(bs);
flash_size = blk_getlength(blk);
if (flash_size != 8*1024*1024 && flash_size != 16*1024*1024 &&
flash_size != 32*1024*1024) {
fprintf(stderr, "Invalid flash image size\n");
@ -1650,14 +1648,14 @@ static void musicpal_init(MachineState *machine)
#ifdef TARGET_WORDS_BIGENDIAN
pflash_cfi02_register(0x100000000ULL-MP_FLASH_SIZE_MAX, NULL,
"musicpal.flash", flash_size,
bs, 0x10000, (flash_size + 0xffff) >> 16,
blk, 0x10000, (flash_size + 0xffff) >> 16,
MP_FLASH_SIZE_MAX / flash_size,
2, 0x00BF, 0x236D, 0x0000, 0x0000,
0x5555, 0x2AAA, 1);
#else
pflash_cfi02_register(0x100000000ULL-MP_FLASH_SIZE_MAX, NULL,
"musicpal.flash", flash_size,
bs, 0x10000, (flash_size + 0xffff) >> 16,
blk, 0x10000, (flash_size + 0xffff) >> 16,
MP_FLASH_SIZE_MAX / flash_size,
2, 0x00BF, 0x236D, 0x0000, 0x0000,
0x5555, 0x2AAA, 0);