diff options
author | RajithaY <rajithax.yerrumsetty@intel.com> | 2017-04-25 03:31:15 -0700 |
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committer | Rajitha Yerrumchetty <rajithax.yerrumsetty@intel.com> | 2017-05-22 06:48:08 +0000 |
commit | bb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch) | |
tree | ca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/block/blkreplay.c | |
parent | a14b48d18a9ed03ec191cf16b162206998a895ce (diff) |
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to
kvmfornfv repo and make use of the updated latest qemu for the
execution of all testcase
Change-Id: I1280af507a857675c7f81d30c95255635667bdd7
Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/block/blkreplay.c')
-rwxr-xr-x | qemu/block/blkreplay.c | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/qemu/block/blkreplay.c b/qemu/block/blkreplay.c deleted file mode 100755 index 42f1813af..000000000 --- a/qemu/block/blkreplay.c +++ /dev/null @@ -1,160 +0,0 @@ -/* - * Block protocol for record/replay - * - * Copyright (c) 2010-2016 Institute for System Programming - * of the Russian Academy of Sciences. - * - * This work is licensed under the terms of the GNU GPL, version 2 or later. - * See the COPYING file in the top-level directory. - * - */ - -#include "qemu/osdep.h" -#include "qemu-common.h" -#include "block/block_int.h" -#include "sysemu/replay.h" -#include "qapi/error.h" - -typedef struct Request { - Coroutine *co; - QEMUBH *bh; -} Request; - -/* Next request id. - This counter is global, because requests from different - block devices should not get overlapping ids. */ -static uint64_t request_id; - -static int blkreplay_open(BlockDriverState *bs, QDict *options, int flags, - Error **errp) -{ - Error *local_err = NULL; - int ret; - - /* Open the image file */ - bs->file = bdrv_open_child(NULL, options, "image", - bs, &child_file, false, &local_err); - if (local_err) { - ret = -EINVAL; - error_propagate(errp, local_err); - goto fail; - } - - ret = 0; -fail: - if (ret < 0) { - bdrv_unref_child(bs, bs->file); - } - return ret; -} - -static void blkreplay_close(BlockDriverState *bs) -{ -} - -static int64_t blkreplay_getlength(BlockDriverState *bs) -{ - return bdrv_getlength(bs->file->bs); -} - -/* This bh is used for synchronization of return from coroutines. - It continues yielded coroutine which then finishes its execution. - BH is called adjusted to some replay checkpoint, therefore - record and replay will always finish coroutines deterministically. -*/ -static void blkreplay_bh_cb(void *opaque) -{ - Request *req = opaque; - qemu_coroutine_enter(req->co, NULL); - qemu_bh_delete(req->bh); - g_free(req); -} - -static void block_request_create(uint64_t reqid, BlockDriverState *bs, - Coroutine *co) -{ - Request *req = g_new(Request, 1); - *req = (Request) { - .co = co, - .bh = aio_bh_new(bdrv_get_aio_context(bs), blkreplay_bh_cb, req), - }; - replay_block_event(req->bh, reqid); -} - -static int coroutine_fn blkreplay_co_readv(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, QEMUIOVector *qiov) -{ - uint64_t reqid = request_id++; - int ret = bdrv_co_readv(bs->file->bs, sector_num, nb_sectors, qiov); - block_request_create(reqid, bs, qemu_coroutine_self()); - qemu_coroutine_yield(); - - return ret; -} - -static int coroutine_fn blkreplay_co_writev(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, QEMUIOVector *qiov) -{ - uint64_t reqid = request_id++; - int ret = bdrv_co_writev(bs->file->bs, sector_num, nb_sectors, qiov); - block_request_create(reqid, bs, qemu_coroutine_self()); - qemu_coroutine_yield(); - - return ret; -} - -static int coroutine_fn blkreplay_co_write_zeroes(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, BdrvRequestFlags flags) -{ - uint64_t reqid = request_id++; - int ret = bdrv_co_write_zeroes(bs->file->bs, sector_num, nb_sectors, flags); - block_request_create(reqid, bs, qemu_coroutine_self()); - qemu_coroutine_yield(); - - return ret; -} - -static int coroutine_fn blkreplay_co_discard(BlockDriverState *bs, - int64_t sector_num, int nb_sectors) -{ - uint64_t reqid = request_id++; - int ret = bdrv_co_discard(bs->file->bs, sector_num, nb_sectors); - block_request_create(reqid, bs, qemu_coroutine_self()); - qemu_coroutine_yield(); - - return ret; -} - -static int coroutine_fn blkreplay_co_flush(BlockDriverState *bs) -{ - uint64_t reqid = request_id++; - int ret = bdrv_co_flush(bs->file->bs); - block_request_create(reqid, bs, qemu_coroutine_self()); - qemu_coroutine_yield(); - - return ret; -} - -static BlockDriver bdrv_blkreplay = { - .format_name = "blkreplay", - .protocol_name = "blkreplay", - .instance_size = 0, - - .bdrv_file_open = blkreplay_open, - .bdrv_close = blkreplay_close, - .bdrv_getlength = blkreplay_getlength, - - .bdrv_co_readv = blkreplay_co_readv, - .bdrv_co_writev = blkreplay_co_writev, - - .bdrv_co_write_zeroes = blkreplay_co_write_zeroes, - .bdrv_co_discard = blkreplay_co_discard, - .bdrv_co_flush = blkreplay_co_flush, -}; - -static void bdrv_blkreplay_init(void) -{ - bdrv_register(&bdrv_blkreplay); -} - -block_init(bdrv_blkreplay_init); |