mirror of https://github.com/xemu-project/xemu.git
Block patches for 2.3
-----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.22 (GNU/Linux) iQIcBAABAgAGBQJU1PZiAAoJEH8JsnLIjy/Ww4YQAKPx878lJRccUqoTTVOTNGon moDQfutErwksljNl6LmyulUxTdPIpI8H7apLkOd7+HHD9TIk1wFXyFmadnwLfsKC QYj9DHFAX7+5mLMol+bDFqODmnj7BttQ+xidGJPGBRhX1fju9cRJW2ztajE21N/1 Pj3x8nvIkmshG4WU1c3etT7lTzKLrhtMatzs//nAGJpiRnyZMAOtwDANnFnCc5Y0 Ns4qB9lTOmUa5l9POuuzl/pLhtSSe95BI9lKeRG86ZYie4en35po/aVDbhGSDdAP 2y3SNi7hro51wQKbV5B0fyp5TJiJZu4jnuGK8mpC8VtMLsT233TuQruPySgMmKh3 uJpCJWRxcXg4JlLEJzN8uenz3ay3OnSHXZ/FS3eHKveQO01sTmEgkIBQNjCbvIYT Jl/Rpf3InXd9L/w2FFwGs0akY0V6nbp+KzCF7Ubdi6OeZJrQrizTKOpmvWPQusES FUZNEqtEhHNCzJuraCBxd1+7Y5q0np/IO0NQted8ypM0gKvjcYsjyzEm6JapgjVl nf3oM0g6GwpuTRzSm1GfiFE3nVNFDV+Rw8VZKb7sD/Vndl4681hortx8zJHGyTI6 N9sCtlDa622oXwDaLIjuG8fjFkBODMSCwbH0swH42AwnOsTTWiqi2r/J7dZ3CJi/ qBC7h9W9ZbxBo6VwEcvW =RmXU -----END PGP SIGNATURE----- Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging Block patches for 2.3 # gpg: Signature made Fri 06 Feb 2015 17:14:10 GMT using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: (47 commits) block/raw-posix.c: Fix raw_getlength() on Mac OS X block devices block: Eliminate silly QERR_ macros used for encryption keys block: New bdrv_add_key(), convert monitor to use it blockdev: Eliminate silly QERR_BLOCK_JOB_NOT_ACTIVE macro blockdev: Give find_block_job() an Error ** parameter qcow2: Rewrite qcow2_alloc_bytes() block: Give always priority to unused entries in the qcow2 L2 cache nbd: fix max_discard/max_transfer_length block: introduce BDRV_REQUEST_MAX_SECTORS nbd: Improve error messages iotests: Fix 104 for NBD iotests: Fix 100 for nbd iotests: Fix 083 block: fix off-by-one error in qcow and qcow2 qemu-iotests: add 116 invalid QED input file tests qed: check for header size overflow block/dmg: improve zeroes handling block/dmg: support bzip2 block entry types block/dmg: factor out block type check block/dmg: use SectorNumber from BLKX header ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell
commit
3d815ac82b
65
block.c
65
block.c
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@ -2647,7 +2647,7 @@ static int bdrv_check_byte_request(BlockDriverState *bs, int64_t offset,
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{
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int64_t len;
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if (size > INT_MAX) {
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if (size > BDRV_REQUEST_MAX_SECTORS << BDRV_SECTOR_BITS) {
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return -EIO;
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}
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@ -2671,7 +2671,7 @@ static int bdrv_check_byte_request(BlockDriverState *bs, int64_t offset,
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static int bdrv_check_request(BlockDriverState *bs, int64_t sector_num,
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int nb_sectors)
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{
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if (nb_sectors < 0 || nb_sectors > INT_MAX / BDRV_SECTOR_SIZE) {
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if (nb_sectors < 0 || nb_sectors > BDRV_REQUEST_MAX_SECTORS) {
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return -EIO;
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}
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@ -2758,7 +2758,7 @@ static int bdrv_rw_co(BlockDriverState *bs, int64_t sector_num, uint8_t *buf,
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.iov_len = nb_sectors * BDRV_SECTOR_SIZE,
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};
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if (nb_sectors < 0 || nb_sectors > INT_MAX / BDRV_SECTOR_SIZE) {
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if (nb_sectors < 0 || nb_sectors > BDRV_REQUEST_MAX_SECTORS) {
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return -EINVAL;
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}
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@ -2826,13 +2826,10 @@ int bdrv_make_zero(BlockDriverState *bs, BdrvRequestFlags flags)
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}
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for (;;) {
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nb_sectors = target_sectors - sector_num;
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nb_sectors = MIN(target_sectors - sector_num, BDRV_REQUEST_MAX_SECTORS);
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if (nb_sectors <= 0) {
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return 0;
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}
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if (nb_sectors > INT_MAX / BDRV_SECTOR_SIZE) {
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nb_sectors = INT_MAX / BDRV_SECTOR_SIZE;
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}
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ret = bdrv_get_block_status(bs, sector_num, nb_sectors, &n);
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if (ret < 0) {
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error_report("error getting block status at sector %" PRId64 ": %s",
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@ -3167,7 +3164,7 @@ static int coroutine_fn bdrv_co_do_readv(BlockDriverState *bs,
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int64_t sector_num, int nb_sectors, QEMUIOVector *qiov,
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BdrvRequestFlags flags)
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{
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if (nb_sectors < 0 || nb_sectors > (UINT_MAX >> BDRV_SECTOR_BITS)) {
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if (nb_sectors < 0 || nb_sectors > BDRV_REQUEST_MAX_SECTORS) {
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return -EINVAL;
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}
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@ -3192,10 +3189,7 @@ int coroutine_fn bdrv_co_copy_on_readv(BlockDriverState *bs,
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BDRV_REQ_COPY_ON_READ);
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}
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/* if no limit is specified in the BlockLimits use a default
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* of 32768 512-byte sectors (16 MiB) per request.
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*/
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#define MAX_WRITE_ZEROES_DEFAULT 32768
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#define MAX_WRITE_ZEROES_BOUNCE_BUFFER 32768
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static int coroutine_fn bdrv_co_do_write_zeroes(BlockDriverState *bs,
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int64_t sector_num, int nb_sectors, BdrvRequestFlags flags)
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@ -3205,8 +3199,8 @@ static int coroutine_fn bdrv_co_do_write_zeroes(BlockDriverState *bs,
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struct iovec iov = {0};
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int ret = 0;
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int max_write_zeroes = bs->bl.max_write_zeroes ?
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bs->bl.max_write_zeroes : MAX_WRITE_ZEROES_DEFAULT;
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int max_write_zeroes = MIN_NON_ZERO(bs->bl.max_write_zeroes,
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BDRV_REQUEST_MAX_SECTORS);
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while (nb_sectors > 0 && !ret) {
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int num = nb_sectors;
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@ -3242,7 +3236,7 @@ static int coroutine_fn bdrv_co_do_write_zeroes(BlockDriverState *bs,
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if (ret == -ENOTSUP) {
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/* Fall back to bounce buffer if write zeroes is unsupported */
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int max_xfer_len = MIN_NON_ZERO(bs->bl.max_transfer_length,
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MAX_WRITE_ZEROES_DEFAULT);
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MAX_WRITE_ZEROES_BOUNCE_BUFFER);
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num = MIN(num, max_xfer_len);
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iov.iov_len = num * BDRV_SECTOR_SIZE;
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if (iov.iov_base == NULL) {
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@ -3461,7 +3455,7 @@ static int coroutine_fn bdrv_co_do_writev(BlockDriverState *bs,
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int64_t sector_num, int nb_sectors, QEMUIOVector *qiov,
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BdrvRequestFlags flags)
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{
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if (nb_sectors < 0 || nb_sectors > (INT_MAX >> BDRV_SECTOR_BITS)) {
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if (nb_sectors < 0 || nb_sectors > BDRV_REQUEST_MAX_SECTORS) {
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return -EINVAL;
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}
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@ -3719,6 +3713,36 @@ int bdrv_set_key(BlockDriverState *bs, const char *key)
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return ret;
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}
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/*
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* Provide an encryption key for @bs.
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* If @key is non-null:
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* If @bs is not encrypted, fail.
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* Else if the key is invalid, fail.
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* Else set @bs's key to @key, replacing the existing key, if any.
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* If @key is null:
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* If @bs is encrypted and still lacks a key, fail.
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* Else do nothing.
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* On failure, store an error object through @errp if non-null.
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*/
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void bdrv_add_key(BlockDriverState *bs, const char *key, Error **errp)
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{
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if (key) {
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if (!bdrv_is_encrypted(bs)) {
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error_setg(errp, "Device '%s' is not encrypted",
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bdrv_get_device_name(bs));
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} else if (bdrv_set_key(bs, key) < 0) {
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error_set(errp, QERR_INVALID_PASSWORD);
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}
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} else {
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if (bdrv_key_required(bs)) {
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error_set(errp, ERROR_CLASS_DEVICE_ENCRYPTED,
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"'%s' (%s) is encrypted",
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bdrv_get_device_name(bs),
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bdrv_get_encrypted_filename(bs));
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}
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}
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}
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const char *bdrv_get_format_name(BlockDriverState *bs)
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{
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return bs->drv ? bs->drv->format_name : NULL;
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@ -4562,6 +4586,8 @@ static int multiwrite_merge(BlockDriverState *bs, BlockRequest *reqs,
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}
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}
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block_acct_merge_done(&bs->stats, BLOCK_ACCT_WRITE, num_reqs - outidx - 1);
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return outidx + 1;
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}
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@ -5097,11 +5123,6 @@ static void coroutine_fn bdrv_discard_co_entry(void *opaque)
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rwco->ret = bdrv_co_discard(rwco->bs, rwco->sector_num, rwco->nb_sectors);
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}
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/* if no limit is specified in the BlockLimits use a default
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* of 32768 512-byte sectors (16 MiB) per request.
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*/
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#define MAX_DISCARD_DEFAULT 32768
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int coroutine_fn bdrv_co_discard(BlockDriverState *bs, int64_t sector_num,
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int nb_sectors)
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{
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@ -5126,7 +5147,7 @@ int coroutine_fn bdrv_co_discard(BlockDriverState *bs, int64_t sector_num,
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return 0;
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}
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max_discard = bs->bl.max_discard ? bs->bl.max_discard : MAX_DISCARD_DEFAULT;
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max_discard = MIN_NON_ZERO(bs->bl.max_discard, BDRV_REQUEST_MAX_SECTORS);
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while (nb_sectors > 0) {
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int ret;
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int num = nb_sectors;
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@ -20,6 +20,7 @@ block-obj-$(CONFIG_GLUSTERFS) += gluster.o
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block-obj-$(CONFIG_ARCHIPELAGO) += archipelago.o
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block-obj-$(CONFIG_LIBSSH2) += ssh.o
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block-obj-y += accounting.o
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block-obj-y += write-threshold.o
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common-obj-y += stream.o
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common-obj-y += commit.o
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@ -36,5 +37,6 @@ gluster.o-libs := $(GLUSTERFS_LIBS)
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ssh.o-cflags := $(LIBSSH2_CFLAGS)
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ssh.o-libs := $(LIBSSH2_LIBS)
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archipelago.o-libs := $(ARCHIPELAGO_LIBS)
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dmg.o-libs := $(BZIP2_LIBS)
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qcow.o-libs := -lz
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linux-aio.o-libs := -laio
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@ -54,3 +54,10 @@ void block_acct_highest_sector(BlockAcctStats *stats, int64_t sector_num,
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stats->wr_highest_sector = sector_num + nb_sectors - 1;
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}
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}
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void block_acct_merge_done(BlockAcctStats *stats, enum BlockAcctType type,
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int num_requests)
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{
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assert(type < BLOCK_MAX_IOTYPE);
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stats->merged[type] += num_requests;
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}
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@ -580,6 +580,11 @@ int blk_get_flags(BlockBackend *blk)
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return bdrv_get_flags(blk->bs);
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}
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int blk_get_max_transfer_length(BlockBackend *blk)
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{
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return blk->bs->bl.max_transfer_length;
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}
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void blk_set_guest_block_size(BlockBackend *blk, int align)
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{
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bdrv_set_guest_block_size(blk->bs, align);
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506
block/dmg.c
506
block/dmg.c
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@ -26,6 +26,10 @@
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#include "qemu/bswap.h"
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#include "qemu/module.h"
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#include <zlib.h>
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#ifdef CONFIG_BZIP2
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#include <bzlib.h>
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#endif
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#include <glib.h>
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enum {
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/* Limit chunk sizes to prevent unreasonable amounts of memory being used
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@ -55,6 +59,9 @@ typedef struct BDRVDMGState {
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uint8_t *compressed_chunk;
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uint8_t *uncompressed_chunk;
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z_stream zstream;
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#ifdef CONFIG_BZIP2
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bz_stream bzstream;
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#endif
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} BDRVDMGState;
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static int dmg_probe(const uint8_t *buf, int buf_size, const char *filename)
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@ -100,6 +107,16 @@ static int read_uint32(BlockDriverState *bs, int64_t offset, uint32_t *result)
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return 0;
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}
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static inline uint64_t buff_read_uint64(const uint8_t *buffer, int64_t offset)
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{
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return be64_to_cpu(*(uint64_t *)&buffer[offset]);
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}
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static inline uint32_t buff_read_uint32(const uint8_t *buffer, int64_t offset)
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{
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return be32_to_cpu(*(uint32_t *)&buffer[offset]);
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}
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/* Increase max chunk sizes, if necessary. This function is used to calculate
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* the buffer sizes needed for compressed/uncompressed chunk I/O.
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*/
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@ -112,6 +129,7 @@ static void update_max_chunk_size(BDRVDMGState *s, uint32_t chunk,
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switch (s->types[chunk]) {
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case 0x80000005: /* zlib compressed */
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case 0x80000006: /* bzip2 compressed */
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compressed_size = s->lengths[chunk];
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uncompressed_sectors = s->sectorcounts[chunk];
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break;
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@ -119,7 +137,9 @@ static void update_max_chunk_size(BDRVDMGState *s, uint32_t chunk,
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uncompressed_sectors = (s->lengths[chunk] + 511) / 512;
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break;
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case 2: /* zero */
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uncompressed_sectors = s->sectorcounts[chunk];
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/* as the all-zeroes block may be large, it is treated specially: the
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* sector is not copied from a large buffer, a simple memset is used
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* instead. Therefore uncompressed_sectors does not need to be set. */
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break;
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}
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@ -131,163 +151,372 @@ static void update_max_chunk_size(BDRVDMGState *s, uint32_t chunk,
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}
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}
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static int64_t dmg_find_koly_offset(BlockDriverState *file_bs, Error **errp)
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{
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int64_t length;
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int64_t offset = 0;
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uint8_t buffer[515];
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int i, ret;
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/* bdrv_getlength returns a multiple of block size (512), rounded up. Since
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* dmg images can have odd sizes, try to look for the "koly" magic which
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* marks the begin of the UDIF trailer (512 bytes). This magic can be found
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* in the last 511 bytes of the second-last sector or the first 4 bytes of
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* the last sector (search space: 515 bytes) */
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length = bdrv_getlength(file_bs);
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if (length < 0) {
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error_setg_errno(errp, -length,
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"Failed to get file size while reading UDIF trailer");
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return length;
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} else if (length < 512) {
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error_setg(errp, "dmg file must be at least 512 bytes long");
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return -EINVAL;
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}
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if (length > 511 + 512) {
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offset = length - 511 - 512;
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}
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length = length < 515 ? length : 515;
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ret = bdrv_pread(file_bs, offset, buffer, length);
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if (ret < 0) {
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error_setg_errno(errp, -ret, "Failed while reading UDIF trailer");
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return ret;
|
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}
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for (i = 0; i < length - 3; i++) {
|
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if (buffer[i] == 'k' && buffer[i+1] == 'o' &&
|
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buffer[i+2] == 'l' && buffer[i+3] == 'y') {
|
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return offset + i;
|
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}
|
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}
|
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error_setg(errp, "Could not locate UDIF trailer in dmg file");
|
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return -EINVAL;
|
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}
|
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|
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/* used when building the sector table */
|
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typedef struct DmgHeaderState {
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/* used internally by dmg_read_mish_block to remember offsets of blocks
|
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* across calls */
|
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uint64_t data_fork_offset;
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/* exported for dmg_open */
|
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uint32_t max_compressed_size;
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uint32_t max_sectors_per_chunk;
|
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} DmgHeaderState;
|
||||
|
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static bool dmg_is_known_block_type(uint32_t entry_type)
|
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{
|
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switch (entry_type) {
|
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case 0x00000001: /* uncompressed */
|
||||
case 0x00000002: /* zeroes */
|
||||
case 0x80000005: /* zlib */
|
||||
#ifdef CONFIG_BZIP2
|
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case 0x80000006: /* bzip2 */
|
||||
#endif
|
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return true;
|
||||
default:
|
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return false;
|
||||
}
|
||||
}
|
||||
|
||||
static int dmg_read_mish_block(BDRVDMGState *s, DmgHeaderState *ds,
|
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uint8_t *buffer, uint32_t count)
|
||||
{
|
||||
uint32_t type, i;
|
||||
int ret;
|
||||
size_t new_size;
|
||||
uint32_t chunk_count;
|
||||
int64_t offset = 0;
|
||||
uint64_t data_offset;
|
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uint64_t in_offset = ds->data_fork_offset;
|
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uint64_t out_offset;
|
||||
|
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type = buff_read_uint32(buffer, offset);
|
||||
/* skip data that is not a valid MISH block (invalid magic or too small) */
|
||||
if (type != 0x6d697368 || count < 244) {
|
||||
/* assume success for now */
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* chunk offsets are relative to this sector number */
|
||||
out_offset = buff_read_uint64(buffer, offset + 8);
|
||||
|
||||
/* location in data fork for (compressed) blob (in bytes) */
|
||||
data_offset = buff_read_uint64(buffer, offset + 0x18);
|
||||
in_offset += data_offset;
|
||||
|
||||
/* move to begin of chunk entries */
|
||||
offset += 204;
|
||||
|
||||
chunk_count = (count - 204) / 40;
|
||||
new_size = sizeof(uint64_t) * (s->n_chunks + chunk_count);
|
||||
s->types = g_realloc(s->types, new_size / 2);
|
||||
s->offsets = g_realloc(s->offsets, new_size);
|
||||
s->lengths = g_realloc(s->lengths, new_size);
|
||||
s->sectors = g_realloc(s->sectors, new_size);
|
||||
s->sectorcounts = g_realloc(s->sectorcounts, new_size);
|
||||
|
||||
for (i = s->n_chunks; i < s->n_chunks + chunk_count; i++) {
|
||||
s->types[i] = buff_read_uint32(buffer, offset);
|
||||
if (!dmg_is_known_block_type(s->types[i])) {
|
||||
chunk_count--;
|
||||
i--;
|
||||
offset += 40;
|
||||
continue;
|
||||
}
|
||||
|
||||
/* sector number */
|
||||
s->sectors[i] = buff_read_uint64(buffer, offset + 8);
|
||||
s->sectors[i] += out_offset;
|
||||
|
||||
/* sector count */
|
||||
s->sectorcounts[i] = buff_read_uint64(buffer, offset + 0x10);
|
||||
|
||||
/* all-zeroes sector (type 2) does not need to be "uncompressed" and can
|
||||
* therefore be unbounded. */
|
||||
if (s->types[i] != 2 && s->sectorcounts[i] > DMG_SECTORCOUNTS_MAX) {
|
||||
error_report("sector count %" PRIu64 " for chunk %" PRIu32
|
||||
" is larger than max (%u)",
|
||||
s->sectorcounts[i], i, DMG_SECTORCOUNTS_MAX);
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* offset in (compressed) data fork */
|
||||
s->offsets[i] = buff_read_uint64(buffer, offset + 0x18);
|
||||
s->offsets[i] += in_offset;
|
||||
|
||||
/* length in (compressed) data fork */
|
||||
s->lengths[i] = buff_read_uint64(buffer, offset + 0x20);
|
||||
|
||||
if (s->lengths[i] > DMG_LENGTHS_MAX) {
|
||||
error_report("length %" PRIu64 " for chunk %" PRIu32
|
||||
" is larger than max (%u)",
|
||||
s->lengths[i], i, DMG_LENGTHS_MAX);
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
update_max_chunk_size(s, i, &ds->max_compressed_size,
|
||||
&ds->max_sectors_per_chunk);
|
||||
offset += 40;
|
||||
}
|
||||
s->n_chunks += chunk_count;
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int dmg_read_resource_fork(BlockDriverState *bs, DmgHeaderState *ds,
|
||||
uint64_t info_begin, uint64_t info_length)
|
||||
{
|
||||
BDRVDMGState *s = bs->opaque;
|
||||
int ret;
|
||||
uint32_t count, rsrc_data_offset;
|
||||
uint8_t *buffer = NULL;
|
||||
uint64_t info_end;
|
||||
uint64_t offset;
|
||||
|
||||
/* read offset from begin of resource fork (info_begin) to resource data */
|
||||
ret = read_uint32(bs, info_begin, &rsrc_data_offset);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
} else if (rsrc_data_offset > info_length) {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* read length of resource data */
|
||||
ret = read_uint32(bs, info_begin + 8, &count);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
} else if (count == 0 || rsrc_data_offset + count > info_length) {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* begin of resource data (consisting of one or more resources) */
|
||||
offset = info_begin + rsrc_data_offset;
|
||||
|
||||
/* end of resource data (there is possibly a following resource map
|
||||
* which will be ignored). */
|
||||
info_end = offset + count;
|
||||
|
||||
/* read offsets (mish blocks) from one or more resources in resource data */
|
||||
while (offset < info_end) {
|
||||
/* size of following resource */
|
||||
ret = read_uint32(bs, offset, &count);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
} else if (count == 0 || count > info_end - offset) {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
offset += 4;
|
||||
|
||||
buffer = g_realloc(buffer, count);
|
||||
ret = bdrv_pread(bs->file, offset, buffer, count);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = dmg_read_mish_block(s, ds, buffer, count);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
/* advance offset by size of resource */
|
||||
offset += count;
|
||||
}
|
||||
ret = 0;
|
||||
|
||||
fail:
|
||||
g_free(buffer);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int dmg_read_plist_xml(BlockDriverState *bs, DmgHeaderState *ds,
|
||||
uint64_t info_begin, uint64_t info_length)
|
||||
{
|
||||
BDRVDMGState *s = bs->opaque;
|
||||
int ret;
|
||||
uint8_t *buffer = NULL;
|
||||
char *data_begin, *data_end;
|
||||
|
||||
/* Have at least some length to avoid NULL for g_malloc. Attempt to set a
|
||||
* safe upper cap on the data length. A test sample had a XML length of
|
||||
* about 1 MiB. */
|
||||
if (info_length == 0 || info_length > 16 * 1024 * 1024) {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
buffer = g_malloc(info_length + 1);
|
||||
buffer[info_length] = '\0';
|
||||
ret = bdrv_pread(bs->file, info_begin, buffer, info_length);
|
||||
if (ret != info_length) {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* look for <data>...</data>. The data is 284 (0x11c) bytes after base64
|
||||
* decode. The actual data element has 431 (0x1af) bytes which includes tabs
|
||||
* and line feeds. */
|
||||
data_end = (char *)buffer;
|
||||
while ((data_begin = strstr(data_end, "<data>")) != NULL) {
|
||||
guchar *mish;
|
||||
gsize out_len = 0;
|
||||
|
||||
data_begin += 6;
|
||||
data_end = strstr(data_begin, "</data>");
|
||||
/* malformed XML? */
|
||||
if (data_end == NULL) {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
*data_end++ = '\0';
|
||||
mish = g_base64_decode(data_begin, &out_len);
|
||||
ret = dmg_read_mish_block(s, ds, mish, (uint32_t)out_len);
|
||||
g_free(mish);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
ret = 0;
|
||||
|
||||
fail:
|
||||
g_free(buffer);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int dmg_open(BlockDriverState *bs, QDict *options, int flags,
|
||||
Error **errp)
|
||||
{
|
||||
BDRVDMGState *s = bs->opaque;
|
||||
uint64_t info_begin, info_end, last_in_offset, last_out_offset;
|
||||
uint32_t count, tmp;
|
||||
uint32_t max_compressed_size = 1, max_sectors_per_chunk = 1, i;
|
||||
DmgHeaderState ds;
|
||||
uint64_t rsrc_fork_offset, rsrc_fork_length;
|
||||
uint64_t plist_xml_offset, plist_xml_length;
|
||||
int64_t offset;
|
||||
int ret;
|
||||
|
||||
bs->read_only = 1;
|
||||
s->n_chunks = 0;
|
||||
s->offsets = s->lengths = s->sectors = s->sectorcounts = NULL;
|
||||
/* used by dmg_read_mish_block to keep track of the current I/O position */
|
||||
ds.data_fork_offset = 0;
|
||||
ds.max_compressed_size = 1;
|
||||
ds.max_sectors_per_chunk = 1;
|
||||
|
||||
/* read offset of info blocks */
|
||||
offset = bdrv_getlength(bs->file);
|
||||
/* locate the UDIF trailer */
|
||||
offset = dmg_find_koly_offset(bs->file, errp);
|
||||
if (offset < 0) {
|
||||
ret = offset;
|
||||
goto fail;
|
||||
}
|
||||
offset -= 0x1d8;
|
||||
|
||||
ret = read_uint64(bs, offset, &info_begin);
|
||||
/* offset of data fork (DataForkOffset) */
|
||||
ret = read_uint64(bs, offset + 0x18, &ds.data_fork_offset);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
} else if (info_begin == 0) {
|
||||
} else if (ds.data_fork_offset > offset) {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = read_uint32(bs, info_begin, &tmp);
|
||||
/* offset of resource fork (RsrcForkOffset) */
|
||||
ret = read_uint64(bs, offset + 0x28, &rsrc_fork_offset);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
} else if (tmp != 0x100) {
|
||||
}
|
||||
ret = read_uint64(bs, offset + 0x30, &rsrc_fork_length);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
if (rsrc_fork_offset >= offset ||
|
||||
rsrc_fork_length > offset - rsrc_fork_offset) {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = read_uint32(bs, info_begin + 4, &count);
|
||||
/* offset of property list (XMLOffset) */
|
||||
ret = read_uint64(bs, offset + 0xd8, &plist_xml_offset);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
} else if (count == 0) {
|
||||
}
|
||||
ret = read_uint64(bs, offset + 0xe0, &plist_xml_length);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
if (plist_xml_offset >= offset ||
|
||||
plist_xml_length > offset - plist_xml_offset) {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
info_end = info_begin + count;
|
||||
|
||||
offset = info_begin + 0x100;
|
||||
|
||||
/* read offsets */
|
||||
last_in_offset = last_out_offset = 0;
|
||||
while (offset < info_end) {
|
||||
uint32_t type;
|
||||
|
||||
ret = read_uint32(bs, offset, &count);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
} else if (count == 0) {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
offset += 4;
|
||||
|
||||
ret = read_uint32(bs, offset, &type);
|
||||
ret = read_uint64(bs, offset + 0x1ec, (uint64_t *)&bs->total_sectors);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
if (bs->total_sectors < 0) {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
if (rsrc_fork_length != 0) {
|
||||
ret = dmg_read_resource_fork(bs, &ds,
|
||||
rsrc_fork_offset, rsrc_fork_length);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (type == 0x6d697368 && count >= 244) {
|
||||
size_t new_size;
|
||||
uint32_t chunk_count;
|
||||
|
||||
offset += 4;
|
||||
offset += 200;
|
||||
|
||||
chunk_count = (count - 204) / 40;
|
||||
new_size = sizeof(uint64_t) * (s->n_chunks + chunk_count);
|
||||
s->types = g_realloc(s->types, new_size / 2);
|
||||
s->offsets = g_realloc(s->offsets, new_size);
|
||||
s->lengths = g_realloc(s->lengths, new_size);
|
||||
s->sectors = g_realloc(s->sectors, new_size);
|
||||
s->sectorcounts = g_realloc(s->sectorcounts, new_size);
|
||||
|
||||
for (i = s->n_chunks; i < s->n_chunks + chunk_count; i++) {
|
||||
ret = read_uint32(bs, offset, &s->types[i]);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
offset += 4;
|
||||
if (s->types[i] != 0x80000005 && s->types[i] != 1 &&
|
||||
s->types[i] != 2) {
|
||||
if (s->types[i] == 0xffffffff && i > 0) {
|
||||
last_in_offset = s->offsets[i - 1] + s->lengths[i - 1];
|
||||
last_out_offset = s->sectors[i - 1] +
|
||||
s->sectorcounts[i - 1];
|
||||
}
|
||||
chunk_count--;
|
||||
i--;
|
||||
offset += 36;
|
||||
continue;
|
||||
}
|
||||
offset += 4;
|
||||
|
||||
ret = read_uint64(bs, offset, &s->sectors[i]);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
s->sectors[i] += last_out_offset;
|
||||
offset += 8;
|
||||
|
||||
ret = read_uint64(bs, offset, &s->sectorcounts[i]);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
offset += 8;
|
||||
|
||||
if (s->sectorcounts[i] > DMG_SECTORCOUNTS_MAX) {
|
||||
error_report("sector count %" PRIu64 " for chunk %" PRIu32
|
||||
" is larger than max (%u)",
|
||||
s->sectorcounts[i], i, DMG_SECTORCOUNTS_MAX);
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
ret = read_uint64(bs, offset, &s->offsets[i]);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
s->offsets[i] += last_in_offset;
|
||||
offset += 8;
|
||||
|
||||
ret = read_uint64(bs, offset, &s->lengths[i]);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
offset += 8;
|
||||
|
||||
if (s->lengths[i] > DMG_LENGTHS_MAX) {
|
||||
error_report("length %" PRIu64 " for chunk %" PRIu32
|
||||
" is larger than max (%u)",
|
||||
s->lengths[i], i, DMG_LENGTHS_MAX);
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
update_max_chunk_size(s, i, &max_compressed_size,
|
||||
&max_sectors_per_chunk);
|
||||
}
|
||||
s->n_chunks += chunk_count;
|
||||
} else if (plist_xml_length != 0) {
|
||||
ret = dmg_read_plist_xml(bs, &ds, plist_xml_offset, plist_xml_length);
|
||||
if (ret < 0) {
|
||||
goto fail;
|
||||
}
|
||||
} else {
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
}
|
||||
|
||||
/* initialize zlib engine */
|
||||
s->compressed_chunk = qemu_try_blockalign(bs->file,
|
||||
max_compressed_size + 1);
|
||||
ds.max_compressed_size + 1);
|
||||
s->uncompressed_chunk = qemu_try_blockalign(bs->file,
|
||||
512 * max_sectors_per_chunk);
|
||||
512 * ds.max_sectors_per_chunk);
|
||||
if (s->compressed_chunk == NULL || s->uncompressed_chunk == NULL) {
|
||||
ret = -ENOMEM;
|
||||
goto fail;
|
||||
|
|
@ -349,13 +578,16 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
|
|||
if (!is_sector_in_chunk(s, s->current_chunk, sector_num)) {
|
||||
int ret;
|
||||
uint32_t chunk = search_chunk(s, sector_num);
|
||||
#ifdef CONFIG_BZIP2
|
||||
uint64_t total_out;
|
||||
#endif
|
||||
|
||||
if (chunk >= s->n_chunks) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
s->current_chunk = s->n_chunks;
|
||||
switch (s->types[chunk]) {
|
||||
switch (s->types[chunk]) { /* block entry type */
|
||||
case 0x80000005: { /* zlib compressed */
|
||||
/* we need to buffer, because only the chunk as whole can be
|
||||
* inflated. */
|
||||
|
|
@ -379,6 +611,34 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
|
|||
return -1;
|
||||
}
|
||||
break; }
|
||||
#ifdef CONFIG_BZIP2
|
||||
case 0x80000006: /* bzip2 compressed */
|
||||
/* we need to buffer, because only the chunk as whole can be
|
||||
* inflated. */
|
||||
ret = bdrv_pread(bs->file, s->offsets[chunk],
|
||||
s->compressed_chunk, s->lengths[chunk]);
|
||||
if (ret != s->lengths[chunk]) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
ret = BZ2_bzDecompressInit(&s->bzstream, 0, 0);
|
||||
if (ret != BZ_OK) {
|
||||
return -1;
|
||||
}
|
||||
s->bzstream.next_in = (char *)s->compressed_chunk;
|
||||
s->bzstream.avail_in = (unsigned int) s->lengths[chunk];
|
||||
s->bzstream.next_out = (char *)s->uncompressed_chunk;
|
||||
s->bzstream.avail_out = (unsigned int) 512 * s->sectorcounts[chunk];
|
||||
ret = BZ2_bzDecompress(&s->bzstream);
|
||||
total_out = ((uint64_t)s->bzstream.total_out_hi32 << 32) +
|
||||
s->bzstream.total_out_lo32;
|
||||
BZ2_bzDecompressEnd(&s->bzstream);
|
||||
if (ret != BZ_STREAM_END ||
|
||||
total_out != 512 * s->sectorcounts[chunk]) {
|
||||
return -1;
|
||||
}
|
||||
break;
|
||||
#endif /* CONFIG_BZIP2 */
|
||||
case 1: /* copy */
|
||||
ret = bdrv_pread(bs->file, s->offsets[chunk],
|
||||
s->uncompressed_chunk, s->lengths[chunk]);
|
||||
|
|
@ -387,7 +647,8 @@ static inline int dmg_read_chunk(BlockDriverState *bs, uint64_t sector_num)
|
|||
}
|
||||
break;
|
||||
case 2: /* zero */
|
||||
memset(s->uncompressed_chunk, 0, 512 * s->sectorcounts[chunk]);
|
||||
/* see dmg_read, it is treated specially. No buffer needs to be
|
||||
* pre-filled, the zeroes can be set directly. */
|
||||
break;
|
||||
}
|
||||
s->current_chunk = chunk;
|
||||
|
|
@ -406,6 +667,13 @@ static int dmg_read(BlockDriverState *bs, int64_t sector_num,
|
|||
if (dmg_read_chunk(bs, sector_num + i) != 0) {
|
||||
return -1;
|
||||
}
|
||||
/* Special case: current chunk is all zeroes. Do not perform a memcpy as
|
||||
* s->uncompressed_chunk may be too small to cover the large all-zeroes
|
||||
* section. dmg_read_chunk is called to find s->current_chunk */
|
||||
if (s->types[s->current_chunk] == 2) { /* all zeroes block entry */
|
||||
memset(buf + i * 512, 0, 512);
|
||||
continue;
|
||||
}
|
||||
sector_offset_in_chunk = sector_num + i - s->sectors[s->current_chunk];
|
||||
memcpy(buf + i * 512,
|
||||
s->uncompressed_chunk + sector_offset_in_chunk * 512, 512);
|
||||
|
|
|
|||
|
|
@ -373,7 +373,7 @@ void nbd_client_session_close(NbdClientSession *client)
|
|||
}
|
||||
|
||||
int nbd_client_session_init(NbdClientSession *client, BlockDriverState *bs,
|
||||
int sock, const char *export)
|
||||
int sock, const char *export, Error **errp)
|
||||
{
|
||||
int ret;
|
||||
|
||||
|
|
@ -382,7 +382,7 @@ int nbd_client_session_init(NbdClientSession *client, BlockDriverState *bs,
|
|||
qemu_set_block(sock);
|
||||
ret = nbd_receive_negotiate(sock, export,
|
||||
&client->nbdflags, &client->size,
|
||||
&client->blocksize);
|
||||
&client->blocksize, errp);
|
||||
if (ret < 0) {
|
||||
logout("Failed to negotiate with the NBD server\n");
|
||||
closesocket(sock);
|
||||
|
|
|
|||
|
|
@ -36,7 +36,7 @@ typedef struct NbdClientSession {
|
|||
} NbdClientSession;
|
||||
|
||||
int nbd_client_session_init(NbdClientSession *client, BlockDriverState *bs,
|
||||
int sock, const char *export_name);
|
||||
int sock, const char *export_name, Error **errp);
|
||||
void nbd_client_session_close(NbdClientSession *client);
|
||||
|
||||
int nbd_client_session_co_discard(NbdClientSession *client, int64_t sector_num,
|
||||
|
|
|
|||
11
block/nbd.c
11
block/nbd.c
|
|
@ -271,7 +271,7 @@ static int nbd_open(BlockDriverState *bs, QDict *options, int flags,
|
|||
}
|
||||
|
||||
/* NBD handshake */
|
||||
result = nbd_client_session_init(&s->client, bs, sock, export);
|
||||
result = nbd_client_session_init(&s->client, bs, sock, export, errp);
|
||||
g_free(export);
|
||||
return result;
|
||||
}
|
||||
|
|
@ -301,6 +301,12 @@ static int nbd_co_flush(BlockDriverState *bs)
|
|||
return nbd_client_session_co_flush(&s->client);
|
||||
}
|
||||
|
||||
static void nbd_refresh_limits(BlockDriverState *bs, Error **errp)
|
||||
{
|
||||
bs->bl.max_discard = UINT32_MAX >> BDRV_SECTOR_BITS;
|
||||
bs->bl.max_transfer_length = UINT32_MAX >> BDRV_SECTOR_BITS;
|
||||
}
|
||||
|
||||
static int nbd_co_discard(BlockDriverState *bs, int64_t sector_num,
|
||||
int nb_sectors)
|
||||
{
|
||||
|
|
@ -396,6 +402,7 @@ static BlockDriver bdrv_nbd = {
|
|||
.bdrv_close = nbd_close,
|
||||
.bdrv_co_flush_to_os = nbd_co_flush,
|
||||
.bdrv_co_discard = nbd_co_discard,
|
||||
.bdrv_refresh_limits = nbd_refresh_limits,
|
||||
.bdrv_getlength = nbd_getlength,
|
||||
.bdrv_detach_aio_context = nbd_detach_aio_context,
|
||||
.bdrv_attach_aio_context = nbd_attach_aio_context,
|
||||
|
|
@ -413,6 +420,7 @@ static BlockDriver bdrv_nbd_tcp = {
|
|||
.bdrv_close = nbd_close,
|
||||
.bdrv_co_flush_to_os = nbd_co_flush,
|
||||
.bdrv_co_discard = nbd_co_discard,
|
||||
.bdrv_refresh_limits = nbd_refresh_limits,
|
||||
.bdrv_getlength = nbd_getlength,
|
||||
.bdrv_detach_aio_context = nbd_detach_aio_context,
|
||||
.bdrv_attach_aio_context = nbd_attach_aio_context,
|
||||
|
|
@ -430,6 +438,7 @@ static BlockDriver bdrv_nbd_unix = {
|
|||
.bdrv_close = nbd_close,
|
||||
.bdrv_co_flush_to_os = nbd_co_flush,
|
||||
.bdrv_co_discard = nbd_co_discard,
|
||||
.bdrv_refresh_limits = nbd_refresh_limits,
|
||||
.bdrv_getlength = nbd_getlength,
|
||||
.bdrv_detach_aio_context = nbd_detach_aio_context,
|
||||
.bdrv_attach_aio_context = nbd_attach_aio_context,
|
||||
|
|
|
|||
|
|
@ -24,6 +24,7 @@
|
|||
|
||||
#include "block/qapi.h"
|
||||
#include "block/block_int.h"
|
||||
#include "block/write-threshold.h"
|
||||
#include "qmp-commands.h"
|
||||
#include "qapi-visit.h"
|
||||
#include "qapi/qmp-output-visitor.h"
|
||||
|
|
@ -89,6 +90,8 @@ BlockDeviceInfo *bdrv_block_device_info(BlockDriverState *bs)
|
|||
info->iops_size = cfg.op_size;
|
||||
}
|
||||
|
||||
info->write_threshold = bdrv_write_threshold_get(bs);
|
||||
|
||||
return info;
|
||||
}
|
||||
|
||||
|
|
@ -335,6 +338,8 @@ static BlockStats *bdrv_query_stats(const BlockDriverState *bs,
|
|||
s->stats->wr_bytes = bs->stats.nr_bytes[BLOCK_ACCT_WRITE];
|
||||
s->stats->rd_operations = bs->stats.nr_ops[BLOCK_ACCT_READ];
|
||||
s->stats->wr_operations = bs->stats.nr_ops[BLOCK_ACCT_WRITE];
|
||||
s->stats->rd_merged = bs->stats.merged[BLOCK_ACCT_READ];
|
||||
s->stats->wr_merged = bs->stats.merged[BLOCK_ACCT_WRITE];
|
||||
s->stats->wr_highest_offset =
|
||||
bs->stats.wr_highest_sector * BDRV_SECTOR_SIZE;
|
||||
s->stats->flush_operations = bs->stats.nr_ops[BLOCK_ACCT_FLUSH];
|
||||
|
|
|
|||
|
|
@ -215,7 +215,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
|
|||
/* read the backing file name */
|
||||
if (header.backing_file_offset != 0) {
|
||||
len = header.backing_file_size;
|
||||
if (len > 1023 || len > sizeof(bs->backing_file)) {
|
||||
if (len > 1023 || len >= sizeof(bs->backing_file)) {
|
||||
error_setg(errp, "Backing file name too long");
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
|
|
|
|||
|
|
@ -253,7 +253,9 @@ static int qcow2_cache_find_entry_to_replace(Qcow2Cache *c)
|
|||
|
||||
/* Give newer hits priority */
|
||||
/* TODO Check how to optimize the replacement strategy */
|
||||
c->entries[i].cache_hits /= 2;
|
||||
if (c->entries[i].cache_hits > 1) {
|
||||
c->entries[i].cache_hits /= 2;
|
||||
}
|
||||
}
|
||||
|
||||
if (min_index == -1) {
|
||||
|
|
|
|||
|
|
@ -759,54 +759,54 @@ int qcow2_alloc_clusters_at(BlockDriverState *bs, uint64_t offset,
|
|||
int64_t qcow2_alloc_bytes(BlockDriverState *bs, int size)
|
||||
{
|
||||
BDRVQcowState *s = bs->opaque;
|
||||
int64_t offset, cluster_offset;
|
||||
int free_in_cluster;
|
||||
int64_t offset;
|
||||
size_t free_in_cluster;
|
||||
int ret;
|
||||
|
||||
BLKDBG_EVENT(bs->file, BLKDBG_CLUSTER_ALLOC_BYTES);
|
||||
assert(size > 0 && size <= s->cluster_size);
|
||||
if (s->free_byte_offset == 0) {
|
||||
offset = qcow2_alloc_clusters(bs, s->cluster_size);
|
||||
if (offset < 0) {
|
||||
return offset;
|
||||
assert(!s->free_byte_offset || offset_into_cluster(s, s->free_byte_offset));
|
||||
|
||||
offset = s->free_byte_offset;
|
||||
|
||||
if (offset) {
|
||||
int refcount = qcow2_get_refcount(bs, offset >> s->cluster_bits);
|
||||
if (refcount < 0) {
|
||||
return refcount;
|
||||
}
|
||||
s->free_byte_offset = offset;
|
||||
}
|
||||
redo:
|
||||
free_in_cluster = s->cluster_size -
|
||||
offset_into_cluster(s, s->free_byte_offset);
|
||||
if (size <= free_in_cluster) {
|
||||
/* enough space in current cluster */
|
||||
offset = s->free_byte_offset;
|
||||
s->free_byte_offset += size;
|
||||
free_in_cluster -= size;
|
||||
if (free_in_cluster == 0)
|
||||
s->free_byte_offset = 0;
|
||||
if (offset_into_cluster(s, offset) != 0)
|
||||
qcow2_update_cluster_refcount(bs, offset >> s->cluster_bits, 1,
|
||||
QCOW2_DISCARD_NEVER);
|
||||
} else {
|
||||
offset = qcow2_alloc_clusters(bs, s->cluster_size);
|
||||
if (offset < 0) {
|
||||
return offset;
|
||||
}
|
||||
cluster_offset = start_of_cluster(s, s->free_byte_offset);
|
||||
if ((cluster_offset + s->cluster_size) == offset) {
|
||||
/* we are lucky: contiguous data */
|
||||
offset = s->free_byte_offset;
|
||||
qcow2_update_cluster_refcount(bs, offset >> s->cluster_bits, 1,
|
||||
QCOW2_DISCARD_NEVER);
|
||||
s->free_byte_offset += size;
|
||||
} else {
|
||||
s->free_byte_offset = offset;
|
||||
goto redo;
|
||||
|
||||
if (refcount == 0xffff) {
|
||||
offset = 0;
|
||||
}
|
||||
}
|
||||
|
||||
/* The cluster refcount was incremented, either by qcow2_alloc_clusters()
|
||||
* or explicitly by qcow2_update_cluster_refcount(). Refcount blocks must
|
||||
* be flushed before the caller's L2 table updates.
|
||||
*/
|
||||
free_in_cluster = s->cluster_size - offset_into_cluster(s, offset);
|
||||
if (!offset || free_in_cluster < size) {
|
||||
int64_t new_cluster = alloc_clusters_noref(bs, s->cluster_size);
|
||||
if (new_cluster < 0) {
|
||||
return new_cluster;
|
||||
}
|
||||
|
||||
if (!offset || ROUND_UP(offset, s->cluster_size) != new_cluster) {
|
||||
offset = new_cluster;
|
||||
}
|
||||
}
|
||||
|
||||
assert(offset);
|
||||
ret = update_refcount(bs, offset, size, 1, QCOW2_DISCARD_NEVER);
|
||||
if (ret < 0) {
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* The cluster refcount was incremented; refcount blocks must be flushed
|
||||
* before the caller's L2 table updates. */
|
||||
qcow2_cache_set_dependency(bs, s->l2_table_cache, s->refcount_block_cache);
|
||||
|
||||
s->free_byte_offset = offset + size;
|
||||
if (!offset_into_cluster(s, s->free_byte_offset)) {
|
||||
s->free_byte_offset = 0;
|
||||
}
|
||||
|
||||
return offset;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -869,7 +869,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
|
|||
if (header.backing_file_offset != 0) {
|
||||
len = header.backing_file_size;
|
||||
if (len > MIN(1023, s->cluster_size - header.backing_file_offset) ||
|
||||
len > sizeof(bs->backing_file)) {
|
||||
len >= sizeof(bs->backing_file)) {
|
||||
error_setg(errp, "Backing file name too long");
|
||||
ret = -EINVAL;
|
||||
goto fail;
|
||||
|
|
|
|||
|
|
@ -440,6 +440,11 @@ static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,
|
|||
s->l2_mask = s->table_nelems - 1;
|
||||
s->l1_shift = s->l2_shift + ffs(s->table_nelems) - 1;
|
||||
|
||||
/* Header size calculation must not overflow uint32_t */
|
||||
if (s->header.header_size > UINT32_MAX / s->header.cluster_size) {
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if ((s->header.features & QED_F_BACKING_FILE)) {
|
||||
if ((uint64_t)s->header.backing_filename_offset +
|
||||
s->header.backing_filename_size >
|
||||
|
|
|
|||
|
|
@ -133,7 +133,6 @@ typedef struct QEDAIOCB {
|
|||
int bh_ret; /* final return status for completion bh */
|
||||
QSIMPLEQ_ENTRY(QEDAIOCB) next; /* next request */
|
||||
int flags; /* QED_AIOCB_* bits ORed together */
|
||||
bool *finished; /* signal for cancel completion */
|
||||
uint64_t end_pos; /* request end on block device, in bytes */
|
||||
|
||||
/* User scatter-gather list */
|
||||
|
|
|
|||
|
|
@ -60,7 +60,7 @@
|
|||
#define FS_NOCOW_FL 0x00800000 /* Do not cow file */
|
||||
#endif
|
||||
#endif
|
||||
#ifdef CONFIG_FALLOCATE_PUNCH_HOLE
|
||||
#if defined(CONFIG_FALLOCATE_PUNCH_HOLE) || defined(CONFIG_FALLOCATE_ZERO_RANGE)
|
||||
#include <linux/falloc.h>
|
||||
#endif
|
||||
#if defined (__FreeBSD__) || defined(__FreeBSD_kernel__)
|
||||
|
|
@ -147,6 +147,7 @@ typedef struct BDRVRawState {
|
|||
bool has_discard:1;
|
||||
bool has_write_zeroes:1;
|
||||
bool discard_zeroes:1;
|
||||
bool has_fallocate;
|
||||
bool needs_alignment;
|
||||
} BDRVRawState;
|
||||
|
||||
|
|
@ -452,6 +453,7 @@ static int raw_open_common(BlockDriverState *bs, QDict *options,
|
|||
}
|
||||
if (S_ISREG(st.st_mode)) {
|
||||
s->discard_zeroes = true;
|
||||
s->has_fallocate = true;
|
||||
}
|
||||
if (S_ISBLK(st.st_mode)) {
|
||||
#ifdef BLKDISCARDZEROES
|
||||
|
|
@ -893,42 +895,110 @@ static int xfs_discard(BDRVRawState *s, int64_t offset, uint64_t bytes)
|
|||
}
|
||||
#endif
|
||||
|
||||
static ssize_t handle_aiocb_write_zeroes(RawPosixAIOData *aiocb)
|
||||
static int translate_err(int err)
|
||||
{
|
||||
int ret = -EOPNOTSUPP;
|
||||
if (err == -ENODEV || err == -ENOSYS || err == -EOPNOTSUPP ||
|
||||
err == -ENOTTY) {
|
||||
err = -ENOTSUP;
|
||||
}
|
||||
return err;
|
||||
}
|
||||
|
||||
#ifdef CONFIG_FALLOCATE
|
||||
static int do_fallocate(int fd, int mode, off_t offset, off_t len)
|
||||
{
|
||||
do {
|
||||
if (fallocate(fd, mode, offset, len) == 0) {
|
||||
return 0;
|
||||
}
|
||||
} while (errno == EINTR);
|
||||
return translate_err(-errno);
|
||||
}
|
||||
#endif
|
||||
|
||||
static ssize_t handle_aiocb_write_zeroes_block(RawPosixAIOData *aiocb)
|
||||
{
|
||||
int ret = -ENOTSUP;
|
||||
BDRVRawState *s = aiocb->bs->opaque;
|
||||
|
||||
if (s->has_write_zeroes == 0) {
|
||||
if (!s->has_write_zeroes) {
|
||||
return -ENOTSUP;
|
||||
}
|
||||
|
||||
if (aiocb->aio_type & QEMU_AIO_BLKDEV) {
|
||||
#ifdef BLKZEROOUT
|
||||
do {
|
||||
uint64_t range[2] = { aiocb->aio_offset, aiocb->aio_nbytes };
|
||||
if (ioctl(aiocb->aio_fildes, BLKZEROOUT, range) == 0) {
|
||||
return 0;
|
||||
}
|
||||
} while (errno == EINTR);
|
||||
|
||||
ret = -errno;
|
||||
#endif
|
||||
} else {
|
||||
#ifdef CONFIG_XFS
|
||||
if (s->is_xfs) {
|
||||
return xfs_write_zeroes(s, aiocb->aio_offset, aiocb->aio_nbytes);
|
||||
do {
|
||||
uint64_t range[2] = { aiocb->aio_offset, aiocb->aio_nbytes };
|
||||
if (ioctl(aiocb->aio_fildes, BLKZEROOUT, range) == 0) {
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
} while (errno == EINTR);
|
||||
|
||||
if (ret == -ENODEV || ret == -ENOSYS || ret == -EOPNOTSUPP ||
|
||||
ret == -ENOTTY) {
|
||||
ret = translate_err(-errno);
|
||||
#endif
|
||||
|
||||
if (ret == -ENOTSUP) {
|
||||
s->has_write_zeroes = false;
|
||||
ret = -ENOTSUP;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static ssize_t handle_aiocb_write_zeroes(RawPosixAIOData *aiocb)
|
||||
{
|
||||
BDRVRawState *s = aiocb->bs->opaque;
|
||||
|
||||
if (aiocb->aio_type & QEMU_AIO_BLKDEV) {
|
||||
return handle_aiocb_write_zeroes_block(aiocb);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_XFS
|
||||
if (s->is_xfs) {
|
||||
return xfs_write_zeroes(s, aiocb->aio_offset, aiocb->aio_nbytes);
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_FALLOCATE_ZERO_RANGE
|
||||
if (s->has_write_zeroes) {
|
||||
int ret = do_fallocate(s->fd, FALLOC_FL_ZERO_RANGE,
|
||||
aiocb->aio_offset, aiocb->aio_nbytes);
|
||||
if (ret == 0 || ret != -ENOTSUP) {
|
||||
return ret;
|
||||
}
|
||||
s->has_write_zeroes = false;
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_FALLOCATE_PUNCH_HOLE
|
||||
if (s->has_discard && s->has_fallocate) {
|
||||
int ret = do_fallocate(s->fd,
|
||||
FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
|
||||
aiocb->aio_offset, aiocb->aio_nbytes);
|
||||
if (ret == 0) {
|
||||
ret = do_fallocate(s->fd, 0, aiocb->aio_offset, aiocb->aio_nbytes);
|
||||
if (ret == 0 || ret != -ENOTSUP) {
|
||||
return ret;
|
||||
}
|
||||
s->has_fallocate = false;
|
||||
} else if (ret != -ENOTSUP) {
|
||||
return ret;
|
||||
} else {
|
||||
s->has_discard = false;
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
#ifdef CONFIG_FALLOCATE
|
||||
if (s->has_fallocate && aiocb->aio_offset >= bdrv_getlength(aiocb->bs)) {
|
||||
int ret = do_fallocate(s->fd, 0, aiocb->aio_offset, aiocb->aio_nbytes);
|
||||
if (ret == 0 || ret != -ENOTSUP) {
|
||||
return ret;
|
||||
}
|
||||
s->has_fallocate = false;
|
||||
}
|
||||
#endif
|
||||
|
||||
return -ENOTSUP;
|
||||
}
|
||||
|
||||
static ssize_t handle_aiocb_discard(RawPosixAIOData *aiocb)
|
||||
{
|
||||
int ret = -EOPNOTSUPP;
|
||||
|
|
@ -957,21 +1027,14 @@ static ssize_t handle_aiocb_discard(RawPosixAIOData *aiocb)
|
|||
#endif
|
||||
|
||||
#ifdef CONFIG_FALLOCATE_PUNCH_HOLE
|
||||
do {
|
||||
if (fallocate(s->fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
|
||||
aiocb->aio_offset, aiocb->aio_nbytes) == 0) {
|
||||
return 0;
|
||||
}
|
||||
} while (errno == EINTR);
|
||||
|
||||
ret = -errno;
|
||||
ret = do_fallocate(s->fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
|
||||
aiocb->aio_offset, aiocb->aio_nbytes);
|
||||
#endif
|
||||
}
|
||||
|
||||
if (ret == -ENODEV || ret == -ENOSYS || ret == -EOPNOTSUPP ||
|
||||
ret == -ENOTTY) {
|
||||
ret = translate_err(ret);
|
||||
if (ret == -ENOTSUP) {
|
||||
s->has_discard = false;
|
||||
ret = -ENOTSUP;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
|
@ -1312,7 +1375,20 @@ again:
|
|||
if (size == 0)
|
||||
#endif
|
||||
#if defined(__APPLE__) && defined(__MACH__)
|
||||
size = LLONG_MAX;
|
||||
{
|
||||
uint64_t sectors = 0;
|
||||
uint32_t sector_size = 0;
|
||||
|
||||
if (ioctl(fd, DKIOCGETBLOCKCOUNT, §ors) == 0
|
||||
&& ioctl(fd, DKIOCGETBLOCKSIZE, §or_size) == 0) {
|
||||
size = sectors * sector_size;
|
||||
} else {
|
||||
size = lseek(fd, 0LL, SEEK_END);
|
||||
if (size < 0) {
|
||||
return -errno;
|
||||
}
|
||||
}
|
||||
}
|
||||
#else
|
||||
size = lseek(fd, 0LL, SEEK_END);
|
||||
if (size < 0) {
|
||||
|
|
|
|||
|
|
@ -0,0 +1,125 @@
|
|||
/*
|
||||
* QEMU System Emulator block write threshold notification
|
||||
*
|
||||
* Copyright Red Hat, Inc. 2014
|
||||
*
|
||||
* Authors:
|
||||
* Francesco Romani <fromani@redhat.com>
|
||||
*
|
||||
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
|
||||
* See the COPYING.LIB file in the top-level directory.
|
||||
*/
|
||||
|
||||
#include "block/block_int.h"
|
||||
#include "block/coroutine.h"
|
||||
#include "block/write-threshold.h"
|
||||
#include "qemu/notify.h"
|
||||
#include "qapi-event.h"
|
||||
#include "qmp-commands.h"
|
||||
|
||||
|
||||
uint64_t bdrv_write_threshold_get(const BlockDriverState *bs)
|
||||
{
|
||||
return bs->write_threshold_offset;
|
||||
}
|
||||
|
||||
bool bdrv_write_threshold_is_set(const BlockDriverState *bs)
|
||||
{
|
||||
return bs->write_threshold_offset > 0;
|
||||
}
|
||||
|
||||
static void write_threshold_disable(BlockDriverState *bs)
|
||||
{
|
||||
if (bdrv_write_threshold_is_set(bs)) {
|
||||
notifier_with_return_remove(&bs->write_threshold_notifier);
|
||||
bs->write_threshold_offset = 0;
|
||||
}
|
||||
}
|
||||
|
||||
uint64_t bdrv_write_threshold_exceeded(const BlockDriverState *bs,
|
||||
const BdrvTrackedRequest *req)
|
||||
{
|
||||
if (bdrv_write_threshold_is_set(bs)) {
|
||||
if (req->offset > bs->write_threshold_offset) {
|
||||
return (req->offset - bs->write_threshold_offset) + req->bytes;
|
||||
}
|
||||
if ((req->offset + req->bytes) > bs->write_threshold_offset) {
|
||||
return (req->offset + req->bytes) - bs->write_threshold_offset;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int coroutine_fn before_write_notify(NotifierWithReturn *notifier,
|
||||
void *opaque)
|
||||
{
|
||||
BdrvTrackedRequest *req = opaque;
|
||||
BlockDriverState *bs = req->bs;
|
||||
uint64_t amount = 0;
|
||||
|
||||
amount = bdrv_write_threshold_exceeded(bs, req);
|
||||
if (amount > 0) {
|
||||
qapi_event_send_block_write_threshold(
|
||||
bs->node_name,
|
||||
amount,
|
||||
bs->write_threshold_offset,
|
||||
&error_abort);
|
||||
|
||||
/* autodisable to avoid flooding the monitor */
|
||||
write_threshold_disable(bs);
|
||||
}
|
||||
|
||||
return 0; /* should always let other notifiers run */
|
||||
}
|
||||
|
||||
static void write_threshold_register_notifier(BlockDriverState *bs)
|
||||
{
|
||||
bs->write_threshold_notifier.notify = before_write_notify;
|
||||
notifier_with_return_list_add(&bs->before_write_notifiers,
|
||||
&bs->write_threshold_notifier);
|
||||
}
|
||||
|
||||
static void write_threshold_update(BlockDriverState *bs,
|
||||
int64_t threshold_bytes)
|
||||
{
|
||||
bs->write_threshold_offset = threshold_bytes;
|
||||
}
|
||||
|
||||
void bdrv_write_threshold_set(BlockDriverState *bs, uint64_t threshold_bytes)
|
||||
{
|
||||
if (bdrv_write_threshold_is_set(bs)) {
|
||||
if (threshold_bytes > 0) {
|
||||
write_threshold_update(bs, threshold_bytes);
|
||||
} else {
|
||||
write_threshold_disable(bs);
|
||||
}
|
||||
} else {
|
||||
if (threshold_bytes > 0) {
|
||||
/* avoid multiple registration */
|
||||
write_threshold_register_notifier(bs);
|
||||
write_threshold_update(bs, threshold_bytes);
|
||||
}
|
||||
/* discard bogus disable request */
|
||||
}
|
||||
}
|
||||
|
||||
void qmp_block_set_write_threshold(const char *node_name,
|
||||
uint64_t threshold_bytes,
|
||||
Error **errp)
|
||||
{
|
||||
BlockDriverState *bs;
|
||||
AioContext *aio_context;
|
||||
|
||||
bs = bdrv_find_node(node_name);
|
||||
if (!bs) {
|
||||
error_set(errp, QERR_DEVICE_NOT_FOUND, node_name);
|
||||
return;
|
||||
}
|
||||
|
||||
aio_context = bdrv_get_aio_context(bs);
|
||||
aio_context_acquire(aio_context);
|
||||
|
||||
bdrv_write_threshold_set(bs, threshold_bytes);
|
||||
|
||||
aio_context_release(aio_context);
|
||||
}
|
||||
44
blockdev.c
44
blockdev.c
|
|
@ -1793,7 +1793,6 @@ void qmp_block_passwd(bool has_device, const char *device,
|
|||
Error *local_err = NULL;
|
||||
BlockDriverState *bs;
|
||||
AioContext *aio_context;
|
||||
int err;
|
||||
|
||||
bs = bdrv_lookup_bs(has_device ? device : NULL,
|
||||
has_node_name ? node_name : NULL,
|
||||
|
|
@ -1806,16 +1805,8 @@ void qmp_block_passwd(bool has_device, const char *device,
|
|||
aio_context = bdrv_get_aio_context(bs);
|
||||
aio_context_acquire(aio_context);
|
||||
|
||||
err = bdrv_set_key(bs, password);
|
||||
if (err == -EINVAL) {
|
||||
error_set(errp, QERR_DEVICE_NOT_ENCRYPTED, bdrv_get_device_name(bs));
|
||||
goto out;
|
||||
} else if (err < 0) {
|
||||
error_set(errp, QERR_INVALID_PASSWORD);
|
||||
goto out;
|
||||
}
|
||||
bdrv_add_key(bs, password, errp);
|
||||
|
||||
out:
|
||||
aio_context_release(aio_context);
|
||||
}
|
||||
|
||||
|
|
@ -1833,18 +1824,7 @@ static void qmp_bdrv_open_encrypted(BlockDriverState *bs, const char *filename,
|
|||
return;
|
||||
}
|
||||
|
||||
if (bdrv_key_required(bs)) {
|
||||
if (password) {
|
||||
if (bdrv_set_key(bs, password) < 0) {
|
||||
error_set(errp, QERR_INVALID_PASSWORD);
|
||||
}
|
||||
} else {
|
||||
error_set(errp, QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs),
|
||||
bdrv_get_encrypted_filename(bs));
|
||||
}
|
||||
} else if (password) {
|
||||
error_set(errp, QERR_DEVICE_NOT_ENCRYPTED, bdrv_get_device_name(bs));
|
||||
}
|
||||
bdrv_add_key(bs, password, errp);
|
||||
}
|
||||
|
||||
void qmp_change_blockdev(const char *device, const char *filename,
|
||||
|
|
@ -2653,7 +2633,8 @@ out:
|
|||
}
|
||||
|
||||
/* Get the block job for a given device name and acquire its AioContext */
|
||||
static BlockJob *find_block_job(const char *device, AioContext **aio_context)
|
||||
static BlockJob *find_block_job(const char *device, AioContext **aio_context,
|
||||
Error **errp)
|
||||
{
|
||||
BlockDriverState *bs;
|
||||
|
||||
|
|
@ -2673,6 +2654,8 @@ static BlockJob *find_block_job(const char *device, AioContext **aio_context)
|
|||
return bs->job;
|
||||
|
||||
notfound:
|
||||
error_set(errp, ERROR_CLASS_DEVICE_NOT_ACTIVE,
|
||||
"No active block job on device '%s'", device);
|
||||
*aio_context = NULL;
|
||||
return NULL;
|
||||
}
|
||||
|
|
@ -2680,10 +2663,9 @@ notfound:
|
|||
void qmp_block_job_set_speed(const char *device, int64_t speed, Error **errp)
|
||||
{
|
||||
AioContext *aio_context;
|
||||
BlockJob *job = find_block_job(device, &aio_context);
|
||||
BlockJob *job = find_block_job(device, &aio_context, errp);
|
||||
|
||||
if (!job) {
|
||||
error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -2695,10 +2677,9 @@ void qmp_block_job_cancel(const char *device,
|
|||
bool has_force, bool force, Error **errp)
|
||||
{
|
||||
AioContext *aio_context;
|
||||
BlockJob *job = find_block_job(device, &aio_context);
|
||||
BlockJob *job = find_block_job(device, &aio_context, errp);
|
||||
|
||||
if (!job) {
|
||||
error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -2721,10 +2702,9 @@ out:
|
|||
void qmp_block_job_pause(const char *device, Error **errp)
|
||||
{
|
||||
AioContext *aio_context;
|
||||
BlockJob *job = find_block_job(device, &aio_context);
|
||||
BlockJob *job = find_block_job(device, &aio_context, errp);
|
||||
|
||||
if (!job) {
|
||||
error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -2736,10 +2716,9 @@ void qmp_block_job_pause(const char *device, Error **errp)
|
|||
void qmp_block_job_resume(const char *device, Error **errp)
|
||||
{
|
||||
AioContext *aio_context;
|
||||
BlockJob *job = find_block_job(device, &aio_context);
|
||||
BlockJob *job = find_block_job(device, &aio_context, errp);
|
||||
|
||||
if (!job) {
|
||||
error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
@ -2751,10 +2730,9 @@ void qmp_block_job_resume(const char *device, Error **errp)
|
|||
void qmp_block_job_complete(const char *device, Error **errp)
|
||||
{
|
||||
AioContext *aio_context;
|
||||
BlockJob *job = find_block_job(device, &aio_context);
|
||||
BlockJob *job = find_block_job(device, &aio_context, errp);
|
||||
|
||||
if (!job) {
|
||||
error_set(errp, QERR_BLOCK_JOB_NOT_ACTIVE, device);
|
||||
return;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -313,6 +313,7 @@ glx=""
|
|||
zlib="yes"
|
||||
lzo=""
|
||||
snappy=""
|
||||
bzip2=""
|
||||
guest_agent=""
|
||||
guest_agent_with_vss="no"
|
||||
vss_win32_sdk=""
|
||||
|
|
@ -1060,6 +1061,10 @@ for opt do
|
|||
;;
|
||||
--enable-snappy) snappy="yes"
|
||||
;;
|
||||
--disable-bzip2) bzip2="no"
|
||||
;;
|
||||
--enable-bzip2) bzip2="yes"
|
||||
;;
|
||||
--enable-guest-agent) guest_agent="yes"
|
||||
;;
|
||||
--disable-guest-agent) guest_agent="no"
|
||||
|
|
@ -1374,6 +1379,8 @@ Advanced options (experts only):
|
|||
--enable-usb-redir enable usb network redirection support
|
||||
--enable-lzo enable the support of lzo compression library
|
||||
--enable-snappy enable the support of snappy compression library
|
||||
--enable-bzip2 enable the support of bzip2 compression library (for
|
||||
reading bzip2-compressed dmg images)
|
||||
--disable-guest-agent disable building of the QEMU Guest Agent
|
||||
--enable-guest-agent enable building of the QEMU Guest Agent
|
||||
--with-vss-sdk=SDK-path enable Windows VSS support in QEMU Guest Agent
|
||||
|
|
@ -1819,6 +1826,24 @@ EOF
|
|||
fi
|
||||
fi
|
||||
|
||||
##########################################
|
||||
# bzip2 check
|
||||
|
||||
if test "$bzip2" != "no" ; then
|
||||
cat > $TMPC << EOF
|
||||
#include <bzlib.h>
|
||||
int main(void) { BZ2_bzlibVersion(); return 0; }
|
||||
EOF
|
||||
if compile_prog "" "-lbz2" ; then
|
||||
bzip2="yes"
|
||||
else
|
||||
if test "$bzip2" = "yes"; then
|
||||
feature_not_found "libbzip2" "Install libbzip2 devel"
|
||||
fi
|
||||
bzip2="no"
|
||||
fi
|
||||
fi
|
||||
|
||||
##########################################
|
||||
# libseccomp check
|
||||
|
||||
|
|
@ -3335,6 +3360,22 @@ if compile_prog "" "" ; then
|
|||
fallocate_punch_hole=yes
|
||||
fi
|
||||
|
||||
# check that fallocate supports range zeroing inside the file
|
||||
fallocate_zero_range=no
|
||||
cat > $TMPC << EOF
|
||||
#include <fcntl.h>
|
||||
#include <linux/falloc.h>
|
||||
|
||||
int main(void)
|
||||
{
|
||||
fallocate(0, FALLOC_FL_ZERO_RANGE, 0, 0);
|
||||
return 0;
|
||||
}
|
||||
EOF
|
||||
if compile_prog "" "" ; then
|
||||
fallocate_zero_range=yes
|
||||
fi
|
||||
|
||||
# check for posix_fallocate
|
||||
posix_fallocate=no
|
||||
cat > $TMPC << EOF
|
||||
|
|
@ -4369,6 +4410,7 @@ echo "vhdx $vhdx"
|
|||
echo "Quorum $quorum"
|
||||
echo "lzo support $lzo"
|
||||
echo "snappy support $snappy"
|
||||
echo "bzip2 support $bzip2"
|
||||
echo "NUMA host support $numa"
|
||||
|
||||
if test "$sdl_too_old" = "yes"; then
|
||||
|
|
@ -4567,6 +4609,9 @@ fi
|
|||
if test "$fallocate_punch_hole" = "yes" ; then
|
||||
echo "CONFIG_FALLOCATE_PUNCH_HOLE=y" >> $config_host_mak
|
||||
fi
|
||||
if test "$fallocate_zero_range" = "yes" ; then
|
||||
echo "CONFIG_FALLOCATE_ZERO_RANGE=y" >> $config_host_mak
|
||||
fi
|
||||
if test "$posix_fallocate" = "yes" ; then
|
||||
echo "CONFIG_POSIX_FALLOCATE=y" >> $config_host_mak
|
||||
fi
|
||||
|
|
@ -4724,6 +4769,11 @@ if test "$snappy" = "yes" ; then
|
|||
echo "CONFIG_SNAPPY=y" >> $config_host_mak
|
||||
fi
|
||||
|
||||
if test "$bzip2" = "yes" ; then
|
||||
echo "CONFIG_BZIP2=y" >> $config_host_mak
|
||||
echo "BZIP2_LIBS=-lbz2" >> $config_host_mak
|
||||
fi
|
||||
|
||||
if test "$libiscsi" = "yes" ; then
|
||||
echo "CONFIG_LIBISCSI=m" >> $config_host_mak
|
||||
echo "LIBISCSI_CFLAGS=$libiscsi_cflags" >> $config_host_mak
|
||||
|
|
|
|||
6
hmp.c
6
hmp.c
|
|
@ -474,6 +474,8 @@ void hmp_info_blockstats(Monitor *mon, const QDict *qdict)
|
|||
" wr_total_time_ns=%" PRId64
|
||||
" rd_total_time_ns=%" PRId64
|
||||
" flush_total_time_ns=%" PRId64
|
||||
" rd_merged=%" PRId64
|
||||
" wr_merged=%" PRId64
|
||||
"\n",
|
||||
stats->value->stats->rd_bytes,
|
||||
stats->value->stats->wr_bytes,
|
||||
|
|
@ -482,7 +484,9 @@ void hmp_info_blockstats(Monitor *mon, const QDict *qdict)
|
|||
stats->value->stats->flush_operations,
|
||||
stats->value->stats->wr_total_time_ns,
|
||||
stats->value->stats->rd_total_time_ns,
|
||||
stats->value->stats->flush_total_time_ns);
|
||||
stats->value->stats->flush_total_time_ns,
|
||||
stats->value->stats->rd_merged,
|
||||
stats->value->stats->wr_merged);
|
||||
}
|
||||
|
||||
qapi_free_BlockStatsList(stats_list);
|
||||
|
|
|
|||
|
|
@ -96,9 +96,7 @@ static void handle_notify(EventNotifier *e)
|
|||
event_notifier_test_and_clear(&s->host_notifier);
|
||||
blk_io_plug(s->conf->conf.blk);
|
||||
for (;;) {
|
||||
MultiReqBuffer mrb = {
|
||||
.num_writes = 0,
|
||||
};
|
||||
MultiReqBuffer mrb = {};
|
||||
int ret;
|
||||
|
||||
/* Disable guest->host notifies to avoid unnecessary vmexits */
|
||||
|
|
@ -120,7 +118,9 @@ static void handle_notify(EventNotifier *e)
|
|||
virtio_blk_handle_request(req, &mrb);
|
||||
}
|
||||
|
||||
virtio_submit_multiwrite(s->conf->conf.blk, &mrb);
|
||||
if (mrb.num_reqs) {
|
||||
virtio_blk_submit_multireq(s->conf->conf.blk, &mrb);
|
||||
}
|
||||
|
||||
if (likely(ret == -EAGAIN)) { /* vring emptied */
|
||||
/* Re-enable guest->host notifies and stop processing the vring.
|
||||
|
|
|
|||
|
|
@ -34,6 +34,7 @@ VirtIOBlockReq *virtio_blk_alloc_request(VirtIOBlock *s)
|
|||
req->dev = s;
|
||||
req->qiov.size = 0;
|
||||
req->next = NULL;
|
||||
req->mr_next = NULL;
|
||||
return req;
|
||||
}
|
||||
|
||||
|
|
@ -84,20 +85,32 @@ static int virtio_blk_handle_rw_error(VirtIOBlockReq *req, int error,
|
|||
|
||||
static void virtio_blk_rw_complete(void *opaque, int ret)
|
||||
{
|
||||
VirtIOBlockReq *req = opaque;
|
||||
VirtIOBlockReq *next = opaque;
|
||||
|
||||
trace_virtio_blk_rw_complete(req, ret);
|
||||
while (next) {
|
||||
VirtIOBlockReq *req = next;
|
||||
next = req->mr_next;
|
||||
trace_virtio_blk_rw_complete(req, ret);
|
||||
|
||||
if (ret) {
|
||||
int p = virtio_ldl_p(VIRTIO_DEVICE(req->dev), &req->out.type);
|
||||
bool is_read = !(p & VIRTIO_BLK_T_OUT);
|
||||
if (virtio_blk_handle_rw_error(req, -ret, is_read))
|
||||
return;
|
||||
if (req->qiov.nalloc != -1) {
|
||||
/* If nalloc is != 1 req->qiov is a local copy of the original
|
||||
* external iovec. It was allocated in submit_merged_requests
|
||||
* to be able to merge requests. */
|
||||
qemu_iovec_destroy(&req->qiov);
|
||||
}
|
||||
|
||||
if (ret) {
|
||||
int p = virtio_ldl_p(VIRTIO_DEVICE(req->dev), &req->out.type);
|
||||
bool is_read = !(p & VIRTIO_BLK_T_OUT);
|
||||
if (virtio_blk_handle_rw_error(req, -ret, is_read)) {
|
||||
continue;
|
||||
}
|
||||
}
|
||||
|
||||
virtio_blk_req_complete(req, VIRTIO_BLK_S_OK);
|
||||
block_acct_done(blk_get_stats(req->dev->blk), &req->acct);
|
||||
virtio_blk_free_request(req);
|
||||
}
|
||||
|
||||
virtio_blk_req_complete(req, VIRTIO_BLK_S_OK);
|
||||
block_acct_done(blk_get_stats(req->dev->blk), &req->acct);
|
||||
virtio_blk_free_request(req);
|
||||
}
|
||||
|
||||
static void virtio_blk_flush_complete(void *opaque, int ret)
|
||||
|
|
@ -291,24 +304,127 @@ static void virtio_blk_handle_scsi(VirtIOBlockReq *req)
|
|||
}
|
||||
}
|
||||
|
||||
void virtio_submit_multiwrite(BlockBackend *blk, MultiReqBuffer *mrb)
|
||||
static inline void submit_requests(BlockBackend *blk, MultiReqBuffer *mrb,
|
||||
int start, int num_reqs, int niov)
|
||||
{
|
||||
int i, ret;
|
||||
QEMUIOVector *qiov = &mrb->reqs[start]->qiov;
|
||||
int64_t sector_num = mrb->reqs[start]->sector_num;
|
||||
int nb_sectors = mrb->reqs[start]->qiov.size / BDRV_SECTOR_SIZE;
|
||||
bool is_write = mrb->is_write;
|
||||
|
||||
if (!mrb->num_writes) {
|
||||
if (num_reqs > 1) {
|
||||
int i;
|
||||
struct iovec *tmp_iov = qiov->iov;
|
||||
int tmp_niov = qiov->niov;
|
||||
|
||||
/* mrb->reqs[start]->qiov was initialized from external so we can't
|
||||
* modifiy it here. We need to initialize it locally and then add the
|
||||
* external iovecs. */
|
||||
qemu_iovec_init(qiov, niov);
|
||||
|
||||
for (i = 0; i < tmp_niov; i++) {
|
||||
qemu_iovec_add(qiov, tmp_iov[i].iov_base, tmp_iov[i].iov_len);
|
||||
}
|
||||
|
||||
for (i = start + 1; i < start + num_reqs; i++) {
|
||||
qemu_iovec_concat(qiov, &mrb->reqs[i]->qiov, 0,
|
||||
mrb->reqs[i]->qiov.size);
|
||||
mrb->reqs[i - 1]->mr_next = mrb->reqs[i];
|
||||
nb_sectors += mrb->reqs[i]->qiov.size / BDRV_SECTOR_SIZE;
|
||||
}
|
||||
assert(nb_sectors == qiov->size / BDRV_SECTOR_SIZE);
|
||||
|
||||
trace_virtio_blk_submit_multireq(mrb, start, num_reqs, sector_num,
|
||||
nb_sectors, is_write);
|
||||
block_acct_merge_done(blk_get_stats(blk),
|
||||
is_write ? BLOCK_ACCT_WRITE : BLOCK_ACCT_READ,
|
||||
num_reqs - 1);
|
||||
}
|
||||
|
||||
if (is_write) {
|
||||
blk_aio_writev(blk, sector_num, qiov, nb_sectors,
|
||||
virtio_blk_rw_complete, mrb->reqs[start]);
|
||||
} else {
|
||||
blk_aio_readv(blk, sector_num, qiov, nb_sectors,
|
||||
virtio_blk_rw_complete, mrb->reqs[start]);
|
||||
}
|
||||
}
|
||||
|
||||
static int multireq_compare(const void *a, const void *b)
|
||||
{
|
||||
const VirtIOBlockReq *req1 = *(VirtIOBlockReq **)a,
|
||||
*req2 = *(VirtIOBlockReq **)b;
|
||||
|
||||
/*
|
||||
* Note that we can't simply subtract sector_num1 from sector_num2
|
||||
* here as that could overflow the return value.
|
||||
*/
|
||||
if (req1->sector_num > req2->sector_num) {
|
||||
return 1;
|
||||
} else if (req1->sector_num < req2->sector_num) {
|
||||
return -1;
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
void virtio_blk_submit_multireq(BlockBackend *blk, MultiReqBuffer *mrb)
|
||||
{
|
||||
int i = 0, start = 0, num_reqs = 0, niov = 0, nb_sectors = 0;
|
||||
int max_xfer_len = 0;
|
||||
int64_t sector_num = 0;
|
||||
|
||||
if (mrb->num_reqs == 1) {
|
||||
submit_requests(blk, mrb, 0, 1, -1);
|
||||
mrb->num_reqs = 0;
|
||||
return;
|
||||
}
|
||||
|
||||
ret = blk_aio_multiwrite(blk, mrb->blkreq, mrb->num_writes);
|
||||
if (ret != 0) {
|
||||
for (i = 0; i < mrb->num_writes; i++) {
|
||||
if (mrb->blkreq[i].error) {
|
||||
virtio_blk_rw_complete(mrb->blkreq[i].opaque, -EIO);
|
||||
max_xfer_len = blk_get_max_transfer_length(mrb->reqs[0]->dev->blk);
|
||||
max_xfer_len = MIN_NON_ZERO(max_xfer_len, BDRV_REQUEST_MAX_SECTORS);
|
||||
|
||||
qsort(mrb->reqs, mrb->num_reqs, sizeof(*mrb->reqs),
|
||||
&multireq_compare);
|
||||
|
||||
for (i = 0; i < mrb->num_reqs; i++) {
|
||||
VirtIOBlockReq *req = mrb->reqs[i];
|
||||
if (num_reqs > 0) {
|
||||
bool merge = true;
|
||||
|
||||
/* merge would exceed maximum number of IOVs */
|
||||
if (niov + req->qiov.niov > IOV_MAX) {
|
||||
merge = false;
|
||||
}
|
||||
|
||||
/* merge would exceed maximum transfer length of backend device */
|
||||
if (req->qiov.size / BDRV_SECTOR_SIZE + nb_sectors > max_xfer_len) {
|
||||
merge = false;
|
||||
}
|
||||
|
||||
/* requests are not sequential */
|
||||
if (sector_num + nb_sectors != req->sector_num) {
|
||||
merge = false;
|
||||
}
|
||||
|
||||
if (!merge) {
|
||||
submit_requests(blk, mrb, start, num_reqs, niov);
|
||||
num_reqs = 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (num_reqs == 0) {
|
||||
sector_num = req->sector_num;
|
||||
nb_sectors = niov = 0;
|
||||
start = i;
|
||||
}
|
||||
|
||||
nb_sectors += req->qiov.size / BDRV_SECTOR_SIZE;
|
||||
niov += req->qiov.niov;
|
||||
num_reqs++;
|
||||
}
|
||||
|
||||
mrb->num_writes = 0;
|
||||
submit_requests(blk, mrb, start, num_reqs, niov);
|
||||
mrb->num_reqs = 0;
|
||||
}
|
||||
|
||||
static void virtio_blk_handle_flush(VirtIOBlockReq *req, MultiReqBuffer *mrb)
|
||||
|
|
@ -319,7 +435,9 @@ static void virtio_blk_handle_flush(VirtIOBlockReq *req, MultiReqBuffer *mrb)
|
|||
/*
|
||||
* Make sure all outstanding writes are posted to the backing device.
|
||||
*/
|
||||
virtio_submit_multiwrite(req->dev->blk, mrb);
|
||||
if (mrb->is_write && mrb->num_reqs > 0) {
|
||||
virtio_blk_submit_multireq(req->dev->blk, mrb);
|
||||
}
|
||||
blk_aio_flush(req->dev->blk, virtio_blk_flush_complete, req);
|
||||
}
|
||||
|
||||
|
|
@ -329,6 +447,9 @@ static bool virtio_blk_sect_range_ok(VirtIOBlock *dev,
|
|||
uint64_t nb_sectors = size >> BDRV_SECTOR_BITS;
|
||||
uint64_t total_sectors;
|
||||
|
||||
if (nb_sectors > BDRV_REQUEST_MAX_SECTORS) {
|
||||
return false;
|
||||
}
|
||||
if (sector & dev->sector_mask) {
|
||||
return false;
|
||||
}
|
||||
|
|
@ -342,60 +463,6 @@ static bool virtio_blk_sect_range_ok(VirtIOBlock *dev,
|
|||
return true;
|
||||
}
|
||||
|
||||
static void virtio_blk_handle_write(VirtIOBlockReq *req, MultiReqBuffer *mrb)
|
||||
{
|
||||
BlockRequest *blkreq;
|
||||
uint64_t sector;
|
||||
|
||||
sector = virtio_ldq_p(VIRTIO_DEVICE(req->dev), &req->out.sector);
|
||||
|
||||
trace_virtio_blk_handle_write(req, sector, req->qiov.size / 512);
|
||||
|
||||
if (!virtio_blk_sect_range_ok(req->dev, sector, req->qiov.size)) {
|
||||
virtio_blk_req_complete(req, VIRTIO_BLK_S_IOERR);
|
||||
virtio_blk_free_request(req);
|
||||
return;
|
||||
}
|
||||
|
||||
block_acct_start(blk_get_stats(req->dev->blk), &req->acct, req->qiov.size,
|
||||
BLOCK_ACCT_WRITE);
|
||||
|
||||
if (mrb->num_writes == 32) {
|
||||
virtio_submit_multiwrite(req->dev->blk, mrb);
|
||||
}
|
||||
|
||||
blkreq = &mrb->blkreq[mrb->num_writes];
|
||||
blkreq->sector = sector;
|
||||
blkreq->nb_sectors = req->qiov.size / BDRV_SECTOR_SIZE;
|
||||
blkreq->qiov = &req->qiov;
|
||||
blkreq->cb = virtio_blk_rw_complete;
|
||||
blkreq->opaque = req;
|
||||
blkreq->error = 0;
|
||||
|
||||
mrb->num_writes++;
|
||||
}
|
||||
|
||||
static void virtio_blk_handle_read(VirtIOBlockReq *req)
|
||||
{
|
||||
uint64_t sector;
|
||||
|
||||
sector = virtio_ldq_p(VIRTIO_DEVICE(req->dev), &req->out.sector);
|
||||
|
||||
trace_virtio_blk_handle_read(req, sector, req->qiov.size / 512);
|
||||
|
||||
if (!virtio_blk_sect_range_ok(req->dev, sector, req->qiov.size)) {
|
||||
virtio_blk_req_complete(req, VIRTIO_BLK_S_IOERR);
|
||||
virtio_blk_free_request(req);
|
||||
return;
|
||||
}
|
||||
|
||||
block_acct_start(blk_get_stats(req->dev->blk), &req->acct, req->qiov.size,
|
||||
BLOCK_ACCT_READ);
|
||||
blk_aio_readv(req->dev->blk, sector, &req->qiov,
|
||||
req->qiov.size / BDRV_SECTOR_SIZE,
|
||||
virtio_blk_rw_complete, req);
|
||||
}
|
||||
|
||||
void virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb)
|
||||
{
|
||||
uint32_t type;
|
||||
|
|
@ -430,11 +497,58 @@ void virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb)
|
|||
|
||||
type = virtio_ldl_p(VIRTIO_DEVICE(req->dev), &req->out.type);
|
||||
|
||||
if (type & VIRTIO_BLK_T_FLUSH) {
|
||||
/* VIRTIO_BLK_T_OUT defines the command direction. VIRTIO_BLK_T_BARRIER
|
||||
* is an optional flag. Altough a guest should not send this flag if
|
||||
* not negotiated we ignored it in the past. So keep ignoring it. */
|
||||
switch (type & ~(VIRTIO_BLK_T_OUT | VIRTIO_BLK_T_BARRIER)) {
|
||||
case VIRTIO_BLK_T_IN:
|
||||
{
|
||||
bool is_write = type & VIRTIO_BLK_T_OUT;
|
||||
req->sector_num = virtio_ldq_p(VIRTIO_DEVICE(req->dev),
|
||||
&req->out.sector);
|
||||
|
||||
if (is_write) {
|
||||
qemu_iovec_init_external(&req->qiov, iov, out_num);
|
||||
trace_virtio_blk_handle_write(req, req->sector_num,
|
||||
req->qiov.size / BDRV_SECTOR_SIZE);
|
||||
} else {
|
||||
qemu_iovec_init_external(&req->qiov, in_iov, in_num);
|
||||
trace_virtio_blk_handle_read(req, req->sector_num,
|
||||
req->qiov.size / BDRV_SECTOR_SIZE);
|
||||
}
|
||||
|
||||
if (!virtio_blk_sect_range_ok(req->dev, req->sector_num,
|
||||
req->qiov.size)) {
|
||||
virtio_blk_req_complete(req, VIRTIO_BLK_S_IOERR);
|
||||
virtio_blk_free_request(req);
|
||||
return;
|
||||
}
|
||||
|
||||
block_acct_start(blk_get_stats(req->dev->blk),
|
||||
&req->acct, req->qiov.size,
|
||||
is_write ? BLOCK_ACCT_WRITE : BLOCK_ACCT_READ);
|
||||
|
||||
/* merge would exceed maximum number of requests or IO direction
|
||||
* changes */
|
||||
if (mrb->num_reqs > 0 && (mrb->num_reqs == VIRTIO_BLK_MAX_MERGE_REQS ||
|
||||
is_write != mrb->is_write ||
|
||||
!req->dev->conf.request_merging)) {
|
||||
virtio_blk_submit_multireq(req->dev->blk, mrb);
|
||||
}
|
||||
|
||||
assert(mrb->num_reqs < VIRTIO_BLK_MAX_MERGE_REQS);
|
||||
mrb->reqs[mrb->num_reqs++] = req;
|
||||
mrb->is_write = is_write;
|
||||
break;
|
||||
}
|
||||
case VIRTIO_BLK_T_FLUSH:
|
||||
virtio_blk_handle_flush(req, mrb);
|
||||
} else if (type & VIRTIO_BLK_T_SCSI_CMD) {
|
||||
break;
|
||||
case VIRTIO_BLK_T_SCSI_CMD:
|
||||
virtio_blk_handle_scsi(req);
|
||||
} else if (type & VIRTIO_BLK_T_GET_ID) {
|
||||
break;
|
||||
case VIRTIO_BLK_T_GET_ID:
|
||||
{
|
||||
VirtIOBlock *s = req->dev;
|
||||
|
||||
/*
|
||||
|
|
@ -448,14 +562,9 @@ void virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb)
|
|||
iov_from_buf(in_iov, in_num, 0, serial, size);
|
||||
virtio_blk_req_complete(req, VIRTIO_BLK_S_OK);
|
||||
virtio_blk_free_request(req);
|
||||
} else if (type & VIRTIO_BLK_T_OUT) {
|
||||
qemu_iovec_init_external(&req->qiov, iov, out_num);
|
||||
virtio_blk_handle_write(req, mrb);
|
||||
} else if (type == VIRTIO_BLK_T_IN || type == VIRTIO_BLK_T_BARRIER) {
|
||||
/* VIRTIO_BLK_T_IN is 0, so we can't just & it. */
|
||||
qemu_iovec_init_external(&req->qiov, in_iov, in_num);
|
||||
virtio_blk_handle_read(req);
|
||||
} else {
|
||||
break;
|
||||
}
|
||||
default:
|
||||
virtio_blk_req_complete(req, VIRTIO_BLK_S_UNSUPP);
|
||||
virtio_blk_free_request(req);
|
||||
}
|
||||
|
|
@ -465,9 +574,7 @@ static void virtio_blk_handle_output(VirtIODevice *vdev, VirtQueue *vq)
|
|||
{
|
||||
VirtIOBlock *s = VIRTIO_BLK(vdev);
|
||||
VirtIOBlockReq *req;
|
||||
MultiReqBuffer mrb = {
|
||||
.num_writes = 0,
|
||||
};
|
||||
MultiReqBuffer mrb = {};
|
||||
|
||||
/* Some guests kick before setting VIRTIO_CONFIG_S_DRIVER_OK so start
|
||||
* dataplane here instead of waiting for .set_status().
|
||||
|
|
@ -481,7 +588,9 @@ static void virtio_blk_handle_output(VirtIODevice *vdev, VirtQueue *vq)
|
|||
virtio_blk_handle_request(req, &mrb);
|
||||
}
|
||||
|
||||
virtio_submit_multiwrite(s->blk, &mrb);
|
||||
if (mrb.num_reqs) {
|
||||
virtio_blk_submit_multireq(s->blk, &mrb);
|
||||
}
|
||||
|
||||
/*
|
||||
* FIXME: Want to check for completions before returning to guest mode,
|
||||
|
|
@ -494,9 +603,7 @@ static void virtio_blk_dma_restart_bh(void *opaque)
|
|||
{
|
||||
VirtIOBlock *s = opaque;
|
||||
VirtIOBlockReq *req = s->rq;
|
||||
MultiReqBuffer mrb = {
|
||||
.num_writes = 0,
|
||||
};
|
||||
MultiReqBuffer mrb = {};
|
||||
|
||||
qemu_bh_delete(s->bh);
|
||||
s->bh = NULL;
|
||||
|
|
@ -509,7 +616,9 @@ static void virtio_blk_dma_restart_bh(void *opaque)
|
|||
req = next;
|
||||
}
|
||||
|
||||
virtio_submit_multiwrite(s->blk, &mrb);
|
||||
if (mrb.num_reqs) {
|
||||
virtio_blk_submit_multireq(s->blk, &mrb);
|
||||
}
|
||||
}
|
||||
|
||||
static void virtio_blk_dma_restart_cb(void *opaque, int running,
|
||||
|
|
@ -842,6 +951,8 @@ static Property virtio_blk_properties[] = {
|
|||
#ifdef __linux__
|
||||
DEFINE_PROP_BIT("scsi", VirtIOBlock, conf.scsi, 0, true),
|
||||
#endif
|
||||
DEFINE_PROP_BIT("request-merging", VirtIOBlock, conf.request_merging, 0,
|
||||
true),
|
||||
DEFINE_PROP_BIT("x-data-plane", VirtIOBlock, conf.data_plane, 0, false),
|
||||
DEFINE_PROP_END_OF_LIST(),
|
||||
};
|
||||
|
|
|
|||
|
|
@ -394,6 +394,23 @@ static void ide_atapi_cmd_read(IDEState *s, int lba, int nb_sectors,
|
|||
}
|
||||
}
|
||||
|
||||
|
||||
/* Called by *_restart_bh when the transfer function points
|
||||
* to ide_atapi_cmd
|
||||
*/
|
||||
void ide_atapi_dma_restart(IDEState *s)
|
||||
{
|
||||
/*
|
||||
* I'm not sure we have enough stored to restart the command
|
||||
* safely, so give the guest an error it should recover from.
|
||||
* I'm assuming most guests will try to recover from something
|
||||
* listed as a medium error on a CD; it seems to work on Linux.
|
||||
* This would be more of a problem if we did any other type of
|
||||
* DMA operation.
|
||||
*/
|
||||
ide_atapi_cmd_error(s, MEDIUM_ERROR, ASC_NO_SEEK_COMPLETE);
|
||||
}
|
||||
|
||||
static inline uint8_t ide_atapi_set_profile(uint8_t *buf, uint8_t *index,
|
||||
uint16_t profile)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -2417,6 +2417,7 @@ static int ide_drive_pio_post_load(void *opaque, int version_id)
|
|||
s->end_transfer_func = transfer_end_table[s->end_transfer_fn_idx];
|
||||
s->data_ptr = s->io_buffer + s->cur_io_buffer_offset;
|
||||
s->data_end = s->data_ptr + s->cur_io_buffer_len;
|
||||
s->atapi_dma = s->feature & 1; /* as per cmd_packet */
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
|
|||
|
|
@ -289,6 +289,7 @@ typedef struct IDEDMAOps IDEDMAOps;
|
|||
#define ATAPI_INT_REASON_TAG 0xf8
|
||||
|
||||
/* same constants as bochs */
|
||||
#define ASC_NO_SEEK_COMPLETE 0x02
|
||||
#define ASC_ILLEGAL_OPCODE 0x20
|
||||
#define ASC_LOGICAL_BLOCK_OOR 0x21
|
||||
#define ASC_INV_FIELD_IN_CMD_PACKET 0x24
|
||||
|
|
@ -530,6 +531,7 @@ void ide_dma_error(IDEState *s);
|
|||
|
||||
void ide_atapi_cmd_ok(IDEState *s);
|
||||
void ide_atapi_cmd_error(IDEState *s, int sense_key, int asc);
|
||||
void ide_atapi_dma_restart(IDEState *s);
|
||||
void ide_atapi_io_error(IDEState *s, int ret);
|
||||
|
||||
void ide_ioport_write(void *opaque, uint32_t addr, uint32_t val);
|
||||
|
|
|
|||
11
hw/ide/pci.c
11
hw/ide/pci.c
|
|
@ -235,6 +235,17 @@ static void bmdma_restart_bh(void *opaque)
|
|||
}
|
||||
} else if (error_status & IDE_RETRY_FLUSH) {
|
||||
ide_flush_cache(bmdma_active_if(bm));
|
||||
} else {
|
||||
IDEState *s = bmdma_active_if(bm);
|
||||
|
||||
/*
|
||||
* We've not got any bits to tell us about ATAPI - but
|
||||
* we do have the end_transfer_func that tells us what
|
||||
* we're trying to do.
|
||||
*/
|
||||
if (s->end_transfer_func == ide_atapi_cmd) {
|
||||
ide_atapi_dma_restart(s);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -39,6 +39,7 @@ typedef struct BlockAcctStats {
|
|||
uint64_t nr_bytes[BLOCK_MAX_IOTYPE];
|
||||
uint64_t nr_ops[BLOCK_MAX_IOTYPE];
|
||||
uint64_t total_time_ns[BLOCK_MAX_IOTYPE];
|
||||
uint64_t merged[BLOCK_MAX_IOTYPE];
|
||||
uint64_t wr_highest_sector;
|
||||
} BlockAcctStats;
|
||||
|
||||
|
|
@ -53,5 +54,7 @@ void block_acct_start(BlockAcctStats *stats, BlockAcctCookie *cookie,
|
|||
void block_acct_done(BlockAcctStats *stats, BlockAcctCookie *cookie);
|
||||
void block_acct_highest_sector(BlockAcctStats *stats, int64_t sector_num,
|
||||
unsigned int nb_sectors);
|
||||
void block_acct_merge_done(BlockAcctStats *stats, enum BlockAcctType type,
|
||||
int num_requests);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -83,6 +83,9 @@ typedef enum {
|
|||
#define BDRV_SECTOR_SIZE (1ULL << BDRV_SECTOR_BITS)
|
||||
#define BDRV_SECTOR_MASK ~(BDRV_SECTOR_SIZE - 1)
|
||||
|
||||
#define BDRV_REQUEST_MAX_SECTORS MIN(SIZE_MAX >> BDRV_SECTOR_BITS, \
|
||||
INT_MAX >> BDRV_SECTOR_BITS)
|
||||
|
||||
/*
|
||||
* Allocation status flags
|
||||
* BDRV_BLOCK_DATA: data is read from bs->file or another file
|
||||
|
|
@ -378,6 +381,7 @@ BlockDriverState *bdrv_next(BlockDriverState *bs);
|
|||
int bdrv_is_encrypted(BlockDriverState *bs);
|
||||
int bdrv_key_required(BlockDriverState *bs);
|
||||
int bdrv_set_key(BlockDriverState *bs, const char *key);
|
||||
void bdrv_add_key(BlockDriverState *bs, const char *key, Error **errp);
|
||||
int bdrv_query_missing_keys(void);
|
||||
void bdrv_iterate_format(void (*it)(void *opaque, const char *name),
|
||||
void *opaque);
|
||||
|
|
|
|||
|
|
@ -412,6 +412,10 @@ struct BlockDriverState {
|
|||
|
||||
/* The error object in use for blocking operations on backing_hd */
|
||||
Error *backing_blocker;
|
||||
|
||||
/* threshold limit for writes, in bytes. "High water mark". */
|
||||
uint64_t write_threshold_offset;
|
||||
NotifierWithReturn write_threshold_notifier;
|
||||
};
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -75,7 +75,7 @@ enum {
|
|||
|
||||
ssize_t nbd_wr_sync(int fd, void *buffer, size_t size, bool do_read);
|
||||
int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags,
|
||||
off_t *size, size_t *blocksize);
|
||||
off_t *size, size_t *blocksize, Error **errp);
|
||||
int nbd_init(int fd, int csock, uint32_t flags, off_t size, size_t blocksize);
|
||||
ssize_t nbd_send_request(int csock, struct nbd_request *request);
|
||||
ssize_t nbd_receive_reply(int csock, struct nbd_reply *reply);
|
||||
|
|
|
|||
|
|
@ -0,0 +1,64 @@
|
|||
/*
|
||||
* QEMU System Emulator block write threshold notification
|
||||
*
|
||||
* Copyright Red Hat, Inc. 2014
|
||||
*
|
||||
* Authors:
|
||||
* Francesco Romani <fromani@redhat.com>
|
||||
*
|
||||
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
|
||||
* See the COPYING.LIB file in the top-level directory.
|
||||
*/
|
||||
#ifndef BLOCK_WRITE_THRESHOLD_H
|
||||
#define BLOCK_WRITE_THRESHOLD_H
|
||||
|
||||
#include <stdint.h>
|
||||
|
||||
#include "qemu/typedefs.h"
|
||||
#include "qemu-common.h"
|
||||
|
||||
/*
|
||||
* bdrv_write_threshold_set:
|
||||
*
|
||||
* Set the write threshold for block devices, in bytes.
|
||||
* Notify when a write exceeds the threshold, meaning the device
|
||||
* is becoming full, so it can be transparently resized.
|
||||
* To be used with thin-provisioned block devices.
|
||||
*
|
||||
* Use threshold_bytes == 0 to disable.
|
||||
*/
|
||||
void bdrv_write_threshold_set(BlockDriverState *bs, uint64_t threshold_bytes);
|
||||
|
||||
/*
|
||||
* bdrv_write_threshold_get
|
||||
*
|
||||
* Get the configured write threshold, in bytes.
|
||||
* Zero means no threshold configured.
|
||||
*/
|
||||
uint64_t bdrv_write_threshold_get(const BlockDriverState *bs);
|
||||
|
||||
/*
|
||||
* bdrv_write_threshold_is_set
|
||||
*
|
||||
* Tell if a write threshold is set for a given BDS.
|
||||
*/
|
||||
bool bdrv_write_threshold_is_set(const BlockDriverState *bs);
|
||||
|
||||
/*
|
||||
* bdrv_write_threshold_exceeded
|
||||
*
|
||||
* Return the extent of a write request that exceeded the threshold,
|
||||
* or zero if the request is below the threshold.
|
||||
* Return zero also if the threshold was not set.
|
||||
*
|
||||
* NOTE: here we assume the following holds for each request this code
|
||||
* deals with:
|
||||
*
|
||||
* assert((req->offset + req->bytes) <= UINT64_MAX)
|
||||
*
|
||||
* Please not there is *not* an actual C assert().
|
||||
*/
|
||||
uint64_t bdrv_write_threshold_exceeded(const BlockDriverState *bs,
|
||||
const BdrvTrackedRequest *req);
|
||||
|
||||
#endif
|
||||
|
|
@ -113,6 +113,7 @@ struct VirtIOBlkConf
|
|||
uint32_t scsi;
|
||||
uint32_t config_wce;
|
||||
uint32_t data_plane;
|
||||
uint32_t request_merging;
|
||||
};
|
||||
|
||||
struct VirtIOBlockDataPlane;
|
||||
|
|
@ -134,27 +135,32 @@ typedef struct VirtIOBlock {
|
|||
struct VirtIOBlockDataPlane *dataplane;
|
||||
} VirtIOBlock;
|
||||
|
||||
typedef struct MultiReqBuffer {
|
||||
BlockRequest blkreq[32];
|
||||
unsigned int num_writes;
|
||||
} MultiReqBuffer;
|
||||
|
||||
typedef struct VirtIOBlockReq {
|
||||
int64_t sector_num;
|
||||
VirtIOBlock *dev;
|
||||
VirtQueueElement elem;
|
||||
struct virtio_blk_inhdr *in;
|
||||
struct virtio_blk_outhdr out;
|
||||
QEMUIOVector qiov;
|
||||
struct VirtIOBlockReq *next;
|
||||
struct VirtIOBlockReq *mr_next;
|
||||
BlockAcctCookie acct;
|
||||
} VirtIOBlockReq;
|
||||
|
||||
#define VIRTIO_BLK_MAX_MERGE_REQS 32
|
||||
|
||||
typedef struct MultiReqBuffer {
|
||||
VirtIOBlockReq *reqs[VIRTIO_BLK_MAX_MERGE_REQS];
|
||||
unsigned int num_reqs;
|
||||
bool is_write;
|
||||
} MultiReqBuffer;
|
||||
|
||||
VirtIOBlockReq *virtio_blk_alloc_request(VirtIOBlock *s);
|
||||
|
||||
void virtio_blk_free_request(VirtIOBlockReq *req);
|
||||
|
||||
void virtio_blk_handle_request(VirtIOBlockReq *req, MultiReqBuffer *mrb);
|
||||
|
||||
void virtio_submit_multiwrite(BlockBackend *blk, MultiReqBuffer *mrb);
|
||||
void virtio_blk_submit_multireq(BlockBackend *blk, MultiReqBuffer *mrb);
|
||||
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -37,9 +37,6 @@ void qerror_report_err(Error *err);
|
|||
#define QERR_BASE_NOT_FOUND \
|
||||
ERROR_CLASS_GENERIC_ERROR, "Base '%s' not found"
|
||||
|
||||
#define QERR_BLOCK_JOB_NOT_ACTIVE \
|
||||
ERROR_CLASS_DEVICE_NOT_ACTIVE, "No active block job on device '%s'"
|
||||
|
||||
#define QERR_BLOCK_JOB_NOT_READY \
|
||||
ERROR_CLASS_GENERIC_ERROR, "The active block job for device '%s' cannot be completed"
|
||||
|
||||
|
|
@ -52,9 +49,6 @@ void qerror_report_err(Error *err);
|
|||
#define QERR_BUS_NOT_FOUND \
|
||||
ERROR_CLASS_GENERIC_ERROR, "Bus '%s' not found"
|
||||
|
||||
#define QERR_DEVICE_ENCRYPTED \
|
||||
ERROR_CLASS_DEVICE_ENCRYPTED, "'%s' (%s) is encrypted"
|
||||
|
||||
#define QERR_DEVICE_HAS_NO_MEDIUM \
|
||||
ERROR_CLASS_GENERIC_ERROR, "Device '%s' has no medium"
|
||||
|
||||
|
|
@ -70,9 +64,6 @@ void qerror_report_err(Error *err);
|
|||
#define QERR_DEVICE_NO_HOTPLUG \
|
||||
ERROR_CLASS_GENERIC_ERROR, "Device '%s' does not support hotplugging"
|
||||
|
||||
#define QERR_DEVICE_NOT_ENCRYPTED \
|
||||
ERROR_CLASS_GENERIC_ERROR, "Device '%s' is not encrypted"
|
||||
|
||||
#define QERR_DEVICE_NOT_FOUND \
|
||||
ERROR_CLASS_DEVICE_NOT_FOUND, "Device '%s' not found"
|
||||
|
||||
|
|
|
|||
|
|
@ -127,6 +127,7 @@ int blk_is_inserted(BlockBackend *blk);
|
|||
void blk_lock_medium(BlockBackend *blk, bool locked);
|
||||
void blk_eject(BlockBackend *blk, bool eject_flag);
|
||||
int blk_get_flags(BlockBackend *blk);
|
||||
int blk_get_max_transfer_length(BlockBackend *blk);
|
||||
void blk_set_guest_block_size(BlockBackend *blk, int align);
|
||||
void *blk_blockalign(BlockBackend *blk, size_t size);
|
||||
bool blk_op_is_blocked(BlockBackend *blk, BlockOpType op, Error **errp);
|
||||
|
|
|
|||
16
monitor.c
16
monitor.c
|
|
@ -5368,9 +5368,12 @@ static void bdrv_password_cb(void *opaque, const char *password,
|
|||
Monitor *mon = opaque;
|
||||
BlockDriverState *bs = readline_opaque;
|
||||
int ret = 0;
|
||||
Error *local_err = NULL;
|
||||
|
||||
if (bdrv_set_key(bs, password) != 0) {
|
||||
monitor_printf(mon, "invalid password\n");
|
||||
bdrv_add_key(bs, password, &local_err);
|
||||
if (local_err) {
|
||||
monitor_printf(mon, "%s\n", error_get_pretty(local_err));
|
||||
error_free(local_err);
|
||||
ret = -EPERM;
|
||||
}
|
||||
if (mon->password_completion_cb)
|
||||
|
|
@ -5388,17 +5391,20 @@ int monitor_read_bdrv_key_start(Monitor *mon, BlockDriverState *bs,
|
|||
BlockCompletionFunc *completion_cb,
|
||||
void *opaque)
|
||||
{
|
||||
Error *local_err = NULL;
|
||||
int err;
|
||||
|
||||
if (!bdrv_key_required(bs)) {
|
||||
bdrv_add_key(bs, NULL, &local_err);
|
||||
if (!local_err) {
|
||||
if (completion_cb)
|
||||
completion_cb(opaque, 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Need a key for @bs */
|
||||
|
||||
if (monitor_ctrl_mode(mon)) {
|
||||
qerror_report(QERR_DEVICE_ENCRYPTED, bdrv_get_device_name(bs),
|
||||
bdrv_get_encrypted_filename(bs));
|
||||
qerror_report_err(local_err);
|
||||
return -1;
|
||||
}
|
||||
|
||||
|
|
|
|||
42
nbd.c
42
nbd.c
|
|
@ -494,7 +494,7 @@ fail:
|
|||
}
|
||||
|
||||
int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags,
|
||||
off_t *size, size_t *blocksize)
|
||||
off_t *size, size_t *blocksize, Error **errp)
|
||||
{
|
||||
char buf[256];
|
||||
uint64_t magic, s;
|
||||
|
|
@ -506,13 +506,13 @@ int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags,
|
|||
rc = -EINVAL;
|
||||
|
||||
if (read_sync(csock, buf, 8) != 8) {
|
||||
LOG("read failed");
|
||||
error_setg(errp, "Failed to read data");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
buf[8] = '\0';
|
||||
if (strlen(buf) == 0) {
|
||||
LOG("server connection closed");
|
||||
error_setg(errp, "Server connection closed unexpectedly");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
|
|
@ -527,12 +527,12 @@ int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags,
|
|||
qemu_isprint(buf[7]) ? buf[7] : '.');
|
||||
|
||||
if (memcmp(buf, "NBDMAGIC", 8) != 0) {
|
||||
LOG("Invalid magic received");
|
||||
error_setg(errp, "Invalid magic received");
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (read_sync(csock, &magic, sizeof(magic)) != sizeof(magic)) {
|
||||
LOG("read failed");
|
||||
error_setg(errp, "Failed to read magic");
|
||||
goto fail;
|
||||
}
|
||||
magic = be64_to_cpu(magic);
|
||||
|
|
@ -545,52 +545,60 @@ int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags,
|
|||
|
||||
TRACE("Checking magic (opts_magic)");
|
||||
if (magic != NBD_OPTS_MAGIC) {
|
||||
LOG("Bad magic received");
|
||||
if (magic == NBD_CLIENT_MAGIC) {
|
||||
error_setg(errp, "Server does not support export names");
|
||||
} else {
|
||||
error_setg(errp, "Bad magic received");
|
||||
}
|
||||
goto fail;
|
||||
}
|
||||
if (read_sync(csock, &tmp, sizeof(tmp)) != sizeof(tmp)) {
|
||||
LOG("flags read failed");
|
||||
error_setg(errp, "Failed to read server flags");
|
||||
goto fail;
|
||||
}
|
||||
*flags = be16_to_cpu(tmp) << 16;
|
||||
/* reserved for future use */
|
||||
if (write_sync(csock, &reserved, sizeof(reserved)) !=
|
||||
sizeof(reserved)) {
|
||||
LOG("write failed (reserved)");
|
||||
error_setg(errp, "Failed to read reserved field");
|
||||
goto fail;
|
||||
}
|
||||
/* write the export name */
|
||||
magic = cpu_to_be64(magic);
|
||||
if (write_sync(csock, &magic, sizeof(magic)) != sizeof(magic)) {
|
||||
LOG("write failed (magic)");
|
||||
error_setg(errp, "Failed to send export name magic");
|
||||
goto fail;
|
||||
}
|
||||
opt = cpu_to_be32(NBD_OPT_EXPORT_NAME);
|
||||
if (write_sync(csock, &opt, sizeof(opt)) != sizeof(opt)) {
|
||||
LOG("write failed (opt)");
|
||||
error_setg(errp, "Failed to send export name option number");
|
||||
goto fail;
|
||||
}
|
||||
namesize = cpu_to_be32(strlen(name));
|
||||
if (write_sync(csock, &namesize, sizeof(namesize)) !=
|
||||
sizeof(namesize)) {
|
||||
LOG("write failed (namesize)");
|
||||
error_setg(errp, "Failed to send export name length");
|
||||
goto fail;
|
||||
}
|
||||
if (write_sync(csock, (char*)name, strlen(name)) != strlen(name)) {
|
||||
LOG("write failed (name)");
|
||||
error_setg(errp, "Failed to send export name");
|
||||
goto fail;
|
||||
}
|
||||
} else {
|
||||
TRACE("Checking magic (cli_magic)");
|
||||
|
||||
if (magic != NBD_CLIENT_MAGIC) {
|
||||
LOG("Bad magic received");
|
||||
if (magic == NBD_OPTS_MAGIC) {
|
||||
error_setg(errp, "Server requires an export name");
|
||||
} else {
|
||||
error_setg(errp, "Bad magic received");
|
||||
}
|
||||
goto fail;
|
||||
}
|
||||
}
|
||||
|
||||
if (read_sync(csock, &s, sizeof(s)) != sizeof(s)) {
|
||||
LOG("read failed");
|
||||
error_setg(errp, "Failed to read export length");
|
||||
goto fail;
|
||||
}
|
||||
*size = be64_to_cpu(s);
|
||||
|
|
@ -599,19 +607,19 @@ int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags,
|
|||
|
||||
if (!name) {
|
||||
if (read_sync(csock, flags, sizeof(*flags)) != sizeof(*flags)) {
|
||||
LOG("read failed (flags)");
|
||||
error_setg(errp, "Failed to read export flags");
|
||||
goto fail;
|
||||
}
|
||||
*flags = be32_to_cpup(flags);
|
||||
} else {
|
||||
if (read_sync(csock, &tmp, sizeof(tmp)) != sizeof(tmp)) {
|
||||
LOG("read failed (tmp)");
|
||||
error_setg(errp, "Failed to read export flags");
|
||||
goto fail;
|
||||
}
|
||||
*flags |= be32_to_cpu(tmp);
|
||||
}
|
||||
if (read_sync(csock, &buf, 124) != 124) {
|
||||
LOG("read failed (buf)");
|
||||
error_setg(errp, "Failed to read reserved block");
|
||||
goto fail;
|
||||
}
|
||||
rc = 0;
|
||||
|
|
|
|||
|
|
@ -257,6 +257,9 @@
|
|||
#
|
||||
# @cache: the cache mode used for the block device (since: 2.3)
|
||||
#
|
||||
# @write_threshold: configured write threshold for the device.
|
||||
# 0 if disabled. (Since 2.3)
|
||||
#
|
||||
# Since: 0.14.0
|
||||
#
|
||||
##
|
||||
|
|
@ -271,7 +274,8 @@
|
|||
'*bps_max': 'int', '*bps_rd_max': 'int',
|
||||
'*bps_wr_max': 'int', '*iops_max': 'int',
|
||||
'*iops_rd_max': 'int', '*iops_wr_max': 'int',
|
||||
'*iops_size': 'int', 'cache': 'BlockdevCacheInfo' } }
|
||||
'*iops_size': 'int', 'cache': 'BlockdevCacheInfo',
|
||||
'write_threshold': 'int' } }
|
||||
|
||||
##
|
||||
# @BlockDeviceIoStatus:
|
||||
|
|
@ -407,13 +411,20 @@
|
|||
# growable sparse files (like qcow2) that are used on top
|
||||
# of a physical device.
|
||||
#
|
||||
# @rd_merged: Number of read requests that have been merged into another
|
||||
# request (Since 2.3).
|
||||
#
|
||||
# @wr_merged: Number of write requests that have been merged into another
|
||||
# request (Since 2.3).
|
||||
#
|
||||
# Since: 0.14.0
|
||||
##
|
||||
{ 'type': 'BlockDeviceStats',
|
||||
'data': {'rd_bytes': 'int', 'wr_bytes': 'int', 'rd_operations': 'int',
|
||||
'wr_operations': 'int', 'flush_operations': 'int',
|
||||
'flush_total_time_ns': 'int', 'wr_total_time_ns': 'int',
|
||||
'rd_total_time_ns': 'int', 'wr_highest_offset': 'int' } }
|
||||
'rd_total_time_ns': 'int', 'wr_highest_offset': 'int',
|
||||
'rd_merged': 'int', 'wr_merged': 'int' } }
|
||||
|
||||
##
|
||||
# @BlockStats:
|
||||
|
|
@ -1910,3 +1921,48 @@
|
|||
##
|
||||
{ 'enum': 'PreallocMode',
|
||||
'data': [ 'off', 'metadata', 'falloc', 'full' ] }
|
||||
|
||||
##
|
||||
# @BLOCK_WRITE_THRESHOLD
|
||||
#
|
||||
# Emitted when writes on block device reaches or exceeds the
|
||||
# configured write threshold. For thin-provisioned devices, this
|
||||
# means the device should be extended to avoid pausing for
|
||||
# disk exhaustion.
|
||||
# The event is one shot. Once triggered, it needs to be
|
||||
# re-registered with another block-set-threshold command.
|
||||
#
|
||||
# @node-name: graph node name on which the threshold was exceeded.
|
||||
#
|
||||
# @amount-exceeded: amount of data which exceeded the threshold, in bytes.
|
||||
#
|
||||
# @write-threshold: last configured threshold, in bytes.
|
||||
#
|
||||
# Since: 2.3
|
||||
##
|
||||
{ 'event': 'BLOCK_WRITE_THRESHOLD',
|
||||
'data': { 'node-name': 'str',
|
||||
'amount-exceeded': 'uint64',
|
||||
'write-threshold': 'uint64' } }
|
||||
|
||||
##
|
||||
# @block-set-write-threshold
|
||||
#
|
||||
# Change the write threshold for a block drive. An event will be delivered
|
||||
# if a write to this block drive crosses the configured threshold.
|
||||
# This is useful to transparently resize thin-provisioned drives without
|
||||
# the guest OS noticing.
|
||||
#
|
||||
# @node-name: graph node name on which the threshold must be set.
|
||||
#
|
||||
# @write-threshold: configured threshold for the block device, bytes.
|
||||
# Use 0 to disable the threshold.
|
||||
#
|
||||
# Returns: Nothing on success
|
||||
# If @node name is not found on the block device graph,
|
||||
# DeviceNotFound
|
||||
#
|
||||
# Since: 2.3
|
||||
##
|
||||
{ 'command': 'block-set-write-threshold',
|
||||
'data': { 'node-name': 'str', 'write-threshold': 'uint64' } }
|
||||
|
|
|
|||
|
|
@ -35,7 +35,7 @@
|
|||
#include "block/qapi.h"
|
||||
#include <getopt.h>
|
||||
|
||||
#define QEMU_IMG_VERSION "qemu-img version " QEMU_VERSION \
|
||||
#define QEMU_IMG_VERSION "qemu-img version " QEMU_VERSION QEMU_PKGVERSION \
|
||||
", Copyright (c) 2004-2008 Fabrice Bellard\n"
|
||||
|
||||
typedef struct img_cmd_t {
|
||||
|
|
|
|||
|
|
@ -284,6 +284,7 @@ static void *nbd_client_thread(void *arg)
|
|||
int fd, sock;
|
||||
int ret;
|
||||
pthread_t show_parts_thread;
|
||||
Error *local_error = NULL;
|
||||
|
||||
sock = unix_socket_outgoing(sockpath);
|
||||
if (sock < 0) {
|
||||
|
|
@ -291,8 +292,12 @@ static void *nbd_client_thread(void *arg)
|
|||
}
|
||||
|
||||
ret = nbd_receive_negotiate(sock, NULL, &nbdflags,
|
||||
&size, &blocksize);
|
||||
&size, &blocksize, &local_error);
|
||||
if (ret < 0) {
|
||||
if (local_error) {
|
||||
fprintf(stderr, "%s\n", error_get_pretty(local_error));
|
||||
error_free(local_error);
|
||||
}
|
||||
goto out_socket;
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -2146,6 +2146,8 @@ Each json-object contain the following:
|
|||
- "iops_size": I/O size when limiting by iops (json-int)
|
||||
- "detect_zeroes": detect and optimize zero writing (json-string)
|
||||
- Possible values: "off", "on", "unmap"
|
||||
- "write_threshold": write offset threshold in bytes, a event will be
|
||||
emitted if crossed. Zero if disabled (json-int)
|
||||
- "image": the detail of the image, it is a json-object containing
|
||||
the following:
|
||||
- "filename": image file name (json-string)
|
||||
|
|
@ -2223,6 +2225,7 @@ Example:
|
|||
"iops_wr_max": 0,
|
||||
"iops_size": 0,
|
||||
"detect_zeroes": "on",
|
||||
"write_threshold": 0,
|
||||
"image":{
|
||||
"filename":"disks/test.qcow2",
|
||||
"format":"qcow2",
|
||||
|
|
@ -2303,6 +2306,10 @@ Each json-object contain the following:
|
|||
- "flush_total_time_ns": total time spend on cache flushes in nano-seconds (json-int)
|
||||
- "wr_highest_offset": Highest offset of a sector written since the
|
||||
BlockDriverState has been opened (json-int)
|
||||
- "rd_merged": number of read requests that have been merged into
|
||||
another request (json-int)
|
||||
- "wr_merged": number of write requests that have been merged into
|
||||
another request (json-int)
|
||||
- "parent": Contains recursively the statistics of the underlying
|
||||
protocol (e.g. the host file for a qcow2 image). If there is
|
||||
no underlying protocol, this field is omitted
|
||||
|
|
@ -2326,6 +2333,8 @@ Example:
|
|||
"rd_total_times_ns":3465673657
|
||||
"flush_total_times_ns":49653
|
||||
"flush_operations":61,
|
||||
"rd_merged":0,
|
||||
"wr_merged":0
|
||||
}
|
||||
},
|
||||
"stats":{
|
||||
|
|
@ -2337,7 +2346,9 @@ Example:
|
|||
"flush_operations":51,
|
||||
"wr_total_times_ns":313253456
|
||||
"rd_total_times_ns":3465673657
|
||||
"flush_total_times_ns":49653
|
||||
"flush_total_times_ns":49653,
|
||||
"rd_merged":0,
|
||||
"wr_merged":0
|
||||
}
|
||||
},
|
||||
{
|
||||
|
|
@ -2351,7 +2362,9 @@ Example:
|
|||
"flush_operations":0,
|
||||
"wr_total_times_ns":0
|
||||
"rd_total_times_ns":0
|
||||
"flush_total_times_ns":0
|
||||
"flush_total_times_ns":0,
|
||||
"rd_merged":0,
|
||||
"wr_merged":0
|
||||
}
|
||||
},
|
||||
{
|
||||
|
|
@ -2365,7 +2378,9 @@ Example:
|
|||
"flush_operations":0,
|
||||
"wr_total_times_ns":0
|
||||
"rd_total_times_ns":0
|
||||
"flush_total_times_ns":0
|
||||
"flush_total_times_ns":0,
|
||||
"rd_merged":0,
|
||||
"wr_merged":0
|
||||
}
|
||||
},
|
||||
{
|
||||
|
|
@ -2379,7 +2394,9 @@ Example:
|
|||
"flush_operations":0,
|
||||
"wr_total_times_ns":0
|
||||
"rd_total_times_ns":0
|
||||
"flush_total_times_ns":0
|
||||
"flush_total_times_ns":0,
|
||||
"rd_merged":0,
|
||||
"wr_merged":0
|
||||
}
|
||||
}
|
||||
]
|
||||
|
|
@ -3671,6 +3688,7 @@ Example:
|
|||
"iops_rd_max": 0,
|
||||
"iops_wr_max": 0,
|
||||
"iops_size": 0,
|
||||
"write_threshold": 0,
|
||||
"image":{
|
||||
"filename":"disks/test.qcow2",
|
||||
"format":"qcow2",
|
||||
|
|
@ -3906,4 +3924,32 @@ Move mouse pointer to absolute coordinates (20000, 400).
|
|||
{ "type": "abs", "data" : { "axis": "Y", "value" : 400 } } ] } }
|
||||
<- { "return": {} }
|
||||
|
||||
EQMP
|
||||
|
||||
{
|
||||
.name = "block-set-write-threshold",
|
||||
.args_type = "node-name:s,write-threshold:l",
|
||||
.mhandler.cmd_new = qmp_marshal_input_block_set_write_threshold,
|
||||
},
|
||||
|
||||
SQMP
|
||||
block-set-write-threshold
|
||||
------------
|
||||
|
||||
Change the write threshold for a block drive. The threshold is an offset,
|
||||
thus must be non-negative. Default is no write threshold.
|
||||
Setting the threshold to zero disables it.
|
||||
|
||||
Arguments:
|
||||
|
||||
- "node-name": the node name in the block driver state graph (json-string)
|
||||
- "write-threshold": the write threshold in bytes (json-int)
|
||||
|
||||
Example:
|
||||
|
||||
-> { "execute": "block-set-write-threshold",
|
||||
"arguments": { "node-name": "mydev",
|
||||
"write-threshold": 17179869184 } }
|
||||
<- { "return": {} }
|
||||
|
||||
EQMP
|
||||
|
|
|
|||
8
qmp.c
8
qmp.c
|
|
@ -154,6 +154,7 @@ SpiceInfo *qmp_query_spice(Error **errp)
|
|||
|
||||
void qmp_cont(Error **errp)
|
||||
{
|
||||
Error *local_err = NULL;
|
||||
BlockDriverState *bs;
|
||||
|
||||
if (runstate_needs_reset()) {
|
||||
|
|
@ -167,10 +168,9 @@ void qmp_cont(Error **errp)
|
|||
bdrv_iostatus_reset(bs);
|
||||
}
|
||||
for (bs = bdrv_next(NULL); bs; bs = bdrv_next(bs)) {
|
||||
if (bdrv_key_required(bs)) {
|
||||
error_set(errp, QERR_DEVICE_ENCRYPTED,
|
||||
bdrv_get_device_name(bs),
|
||||
bdrv_get_encrypted_filename(bs));
|
||||
bdrv_add_key(bs, NULL, &local_err);
|
||||
if (local_err) {
|
||||
error_propagate(errp, local_err);
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -68,6 +68,8 @@ check-unit-y += tests/check-qom-interface$(EXESUF)
|
|||
gcov-files-check-qom-interface-y = qom/object.c
|
||||
check-unit-y += tests/test-qemu-opts$(EXESUF)
|
||||
gcov-files-test-qemu-opts-y = qom/test-qemu-opts.c
|
||||
check-unit-y += tests/test-write-threshold$(EXESUF)
|
||||
gcov-files-test-write-threshold-y = block/write-threshold.c
|
||||
|
||||
check-block-$(CONFIG_POSIX) += tests/qemu-iotests-quick.sh
|
||||
|
||||
|
|
@ -360,6 +362,7 @@ tests/usb-hcd-xhci-test$(EXESUF): tests/usb-hcd-xhci-test.o $(libqos-usb-obj-y)
|
|||
tests/vhost-user-test$(EXESUF): tests/vhost-user-test.o qemu-char.o qemu-timer.o $(qtest-obj-y)
|
||||
tests/qemu-iotests/socket_scm_helper$(EXESUF): tests/qemu-iotests/socket_scm_helper.o
|
||||
tests/test-qemu-opts$(EXESUF): tests/test-qemu-opts.o libqemuutil.a libqemustub.a
|
||||
tests/test-write-threshold$(EXESUF): tests/test-write-threshold.o $(block-obj-y) libqemuutil.a libqemustub.a
|
||||
|
||||
ifeq ($(CONFIG_POSIX),y)
|
||||
LIBS += -lutil
|
||||
|
|
|
|||
|
|
@ -43,6 +43,7 @@ Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk -device virti
|
|||
"drv": "qcow2",
|
||||
"iops": 0,
|
||||
"bps_wr": 0,
|
||||
"write_threshold": 0,
|
||||
"encrypted": false,
|
||||
"bps": 0,
|
||||
"bps_rd": 0,
|
||||
|
|
@ -218,6 +219,7 @@ Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,if=none,id=disk
|
|||
"drv": "qcow2",
|
||||
"iops": 0,
|
||||
"bps_wr": 0,
|
||||
"write_threshold": 0,
|
||||
"encrypted": false,
|
||||
"bps": 0,
|
||||
"bps_rd": 0,
|
||||
|
|
@ -423,6 +425,7 @@ Testing:
|
|||
"drv": "qcow2",
|
||||
"iops": 0,
|
||||
"bps_wr": 0,
|
||||
"write_threshold": 0,
|
||||
"encrypted": false,
|
||||
"bps": 0,
|
||||
"bps_rd": 0,
|
||||
|
|
@ -607,6 +610,7 @@ Testing:
|
|||
"drv": "qcow2",
|
||||
"iops": 0,
|
||||
"bps_wr": 0,
|
||||
"write_threshold": 0,
|
||||
"encrypted": false,
|
||||
"bps": 0,
|
||||
"bps_rd": 0,
|
||||
|
|
@ -717,6 +721,7 @@ Testing:
|
|||
"drv": "qcow2",
|
||||
"iops": 0,
|
||||
"bps_wr": 0,
|
||||
"write_threshold": 0,
|
||||
"encrypted": false,
|
||||
"bps": 0,
|
||||
"bps_rd": 0,
|
||||
|
|
|
|||
|
|
@ -56,7 +56,8 @@ filter_nbd() {
|
|||
#
|
||||
# Filter out the TCP port number since this changes between runs.
|
||||
sed -e 's#^.*nbd\.c:.*##g' \
|
||||
-e 's#nbd:127\.0\.0\.1:[^:]*:#nbd:127\.0\.0\.1:PORT:#g'
|
||||
-e 's#nbd:127\.0\.0\.1:[^:]*:#nbd:127\.0\.0\.1:PORT:#g' \
|
||||
-e 's#\(exportname=foo\|PORT\): Failed to .*$#\1#'
|
||||
}
|
||||
|
||||
check_disconnect() {
|
||||
|
|
|
|||
|
|
@ -1,163 +1,138 @@
|
|||
QA output created by 083
|
||||
=== Check disconnect before neg1 ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect after neg1 ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect 8 neg1 ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect 16 neg1 ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect before export ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect after export ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect 4 export ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect 12 export ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect 16 export ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect before neg2 ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect after neg2 ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not read image for determining its format: Input/output error
|
||||
no file open, try 'help open'
|
||||
read failed: Input/output error
|
||||
|
||||
=== Check disconnect 8 neg2 ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect 10 neg2 ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect before request ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not read image for determining its format: Input/output error
|
||||
no file open, try 'help open'
|
||||
read failed: Input/output error
|
||||
|
||||
=== Check disconnect after request ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not read image for determining its format: Input/output error
|
||||
no file open, try 'help open'
|
||||
read failed: Input/output error
|
||||
|
||||
=== Check disconnect before reply ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not read image for determining its format: Input/output error
|
||||
no file open, try 'help open'
|
||||
read failed: Input/output error
|
||||
|
||||
=== Check disconnect after reply ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not read image for determining its format: Input/output error
|
||||
no file open, try 'help open'
|
||||
read failed: Input/output error
|
||||
|
||||
=== Check disconnect 4 reply ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not read image for determining its format: Input/output error
|
||||
no file open, try 'help open'
|
||||
read failed: Input/output error
|
||||
|
||||
=== Check disconnect 8 reply ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not read image for determining its format: Input/output error
|
||||
no file open, try 'help open'
|
||||
read failed: Input/output error
|
||||
|
||||
=== Check disconnect before data ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT:exportname=foo: Could not read image for determining its format: Input/output error
|
||||
no file open, try 'help open'
|
||||
read failed: Input/output error
|
||||
|
||||
=== Check disconnect after data ===
|
||||
|
||||
|
||||
read failed: Input/output error
|
||||
read 512/512 bytes at offset 0
|
||||
512 bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
|
||||
=== Check disconnect before neg-classic ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect 8 neg-classic ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect 16 neg-classic ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect 24 neg-classic ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect 28 neg-classic ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT: Could not open image: Invalid argument
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT
|
||||
no file open, try 'help open'
|
||||
|
||||
=== Check disconnect after neg-classic ===
|
||||
|
||||
|
||||
qemu-io: can't open device nbd:127.0.0.1:PORT: Could not read image for determining its format: Input/output error
|
||||
no file open, try 'help open'
|
||||
read failed: Input/output error
|
||||
|
||||
*** done
|
||||
|
|
|
|||
|
|
@ -55,6 +55,8 @@ echo "== verify pattern =="
|
|||
$QEMU_IO -c "read -P 0xcd 0 4k" "$TEST_IMG" | _filter_qemu_io
|
||||
$QEMU_IO -c "read -P 0 4k 4k" "$TEST_IMG" | _filter_qemu_io
|
||||
|
||||
_cleanup_test_img
|
||||
|
||||
echo
|
||||
echo "== Sequential requests =="
|
||||
_make_test_img $size
|
||||
|
|
@ -66,6 +68,8 @@ $QEMU_IO -c "read -P 0xcd 0 4k" "$TEST_IMG" | _filter_qemu_io
|
|||
$QEMU_IO -c "read -P 0xce 4k 4k" "$TEST_IMG" | _filter_qemu_io
|
||||
$QEMU_IO -c "read -P 0 8k 4k" "$TEST_IMG" | _filter_qemu_io
|
||||
|
||||
_cleanup_test_img
|
||||
|
||||
echo
|
||||
echo "== Superset overlapping requests =="
|
||||
_make_test_img $size
|
||||
|
|
@ -79,6 +83,8 @@ $QEMU_IO -c "read -P 0xcd 0 1k" "$TEST_IMG" | _filter_qemu_io
|
|||
$QEMU_IO -c "read -P 0xcd 3k 1k" "$TEST_IMG" | _filter_qemu_io
|
||||
$QEMU_IO -c "read -P 0 4k 4k" "$TEST_IMG" | _filter_qemu_io
|
||||
|
||||
_cleanup_test_img
|
||||
|
||||
echo
|
||||
echo "== Subset overlapping requests =="
|
||||
_make_test_img $size
|
||||
|
|
@ -92,6 +98,8 @@ $QEMU_IO -c "read -P 0xce 0 1k" "$TEST_IMG" | _filter_qemu_io
|
|||
$QEMU_IO -c "read -P 0xce 3k 1k" "$TEST_IMG" | _filter_qemu_io
|
||||
$QEMU_IO -c "read -P 0 4k 4k" "$TEST_IMG" | _filter_qemu_io
|
||||
|
||||
_cleanup_test_img
|
||||
|
||||
echo
|
||||
echo "== Head overlapping requests =="
|
||||
_make_test_img $size
|
||||
|
|
@ -104,6 +112,8 @@ echo "== verify pattern =="
|
|||
$QEMU_IO -c "read -P 0xce 2k 2k" "$TEST_IMG" | _filter_qemu_io
|
||||
$QEMU_IO -c "read -P 0 4k 4k" "$TEST_IMG" | _filter_qemu_io
|
||||
|
||||
_cleanup_test_img
|
||||
|
||||
echo
|
||||
echo "== Tail overlapping requests =="
|
||||
_make_test_img $size
|
||||
|
|
@ -116,6 +126,8 @@ echo "== verify pattern =="
|
|||
$QEMU_IO -c "read -P 0xce 0k 2k" "$TEST_IMG" | _filter_qemu_io
|
||||
$QEMU_IO -c "read -P 0 4k 4k" "$TEST_IMG" | _filter_qemu_io
|
||||
|
||||
_cleanup_test_img
|
||||
|
||||
echo
|
||||
echo "== Disjoint requests =="
|
||||
_make_test_img $size
|
||||
|
|
|
|||
|
|
@ -28,11 +28,7 @@ here=`pwd`
|
|||
tmp=/tmp/$$
|
||||
status=1 # failure is the default!
|
||||
|
||||
_cleanup()
|
||||
{
|
||||
_cleanup_test_img
|
||||
}
|
||||
trap "_cleanup; exit \$status" 0 1 2 3 15
|
||||
trap "exit \$status" 0 1 2 3 15
|
||||
|
||||
# get standard environment, filters and checks
|
||||
. ./common.rc
|
||||
|
|
@ -47,8 +43,9 @@ echo
|
|||
image_sizes="1024 1234"
|
||||
|
||||
for s in $image_sizes; do
|
||||
_make_test_img $s | _filter_img_create
|
||||
_make_test_img $s
|
||||
_img_info | _filter_img_info
|
||||
_cleanup_test_img
|
||||
done
|
||||
|
||||
# success, all done
|
||||
|
|
|
|||
|
|
@ -0,0 +1,96 @@
|
|||
#!/bin/bash
|
||||
#
|
||||
# Test error code paths for invalid QED images
|
||||
#
|
||||
# The aim of this test is to exercise the error paths in qed_open() to ensure
|
||||
# there are no crashes with invalid input files.
|
||||
#
|
||||
# Copyright (C) 2015 Red Hat, Inc.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 2 of the License, or
|
||||
# (at your option) any later version.
|
||||
#
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
# GNU General Public License for more details.
|
||||
#
|
||||
# You should have received a copy of the GNU General Public License
|
||||
# along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
#
|
||||
|
||||
# creator
|
||||
owner=stefanha@redhat.com
|
||||
|
||||
seq=`basename $0`
|
||||
echo "QA output created by $seq"
|
||||
|
||||
here=`pwd`
|
||||
tmp=/tmp/$$
|
||||
status=1 # failure is the default!
|
||||
|
||||
_cleanup()
|
||||
{
|
||||
_cleanup_test_img
|
||||
}
|
||||
trap "_cleanup; exit \$status" 0 1 2 3 15
|
||||
|
||||
# get standard environment, filters and checks
|
||||
. ./common.rc
|
||||
. ./common.filter
|
||||
|
||||
_supported_fmt qed
|
||||
_supported_proto generic
|
||||
_supported_os Linux
|
||||
|
||||
|
||||
size=128M
|
||||
|
||||
echo
|
||||
echo "== truncated header cluster =="
|
||||
_make_test_img $size
|
||||
truncate -s 512 "$TEST_IMG"
|
||||
$QEMU_IO -f "$IMGFMT" -c "read 0 $size" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
echo
|
||||
echo "== invalid header magic =="
|
||||
_make_test_img $size
|
||||
poke_file "$TEST_IMG" "0" "QEDX"
|
||||
$QEMU_IO -f "$IMGFMT" -c "read 0 $size" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
echo
|
||||
echo "== invalid cluster size =="
|
||||
_make_test_img $size
|
||||
poke_file "$TEST_IMG" "4" "\xff\xff\xff\xff"
|
||||
$QEMU_IO -f "$IMGFMT" -c "read 0 $size" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
echo
|
||||
echo "== invalid table size =="
|
||||
_make_test_img $size
|
||||
poke_file "$TEST_IMG" "8" "\xff\xff\xff\xff"
|
||||
$QEMU_IO -f "$IMGFMT" -c "read 0 $size" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
echo
|
||||
echo "== invalid header size =="
|
||||
_make_test_img $size
|
||||
poke_file "$TEST_IMG" "12" "\xff\xff\xff\xff"
|
||||
$QEMU_IO -f "$IMGFMT" -c "read 0 $size" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
echo
|
||||
echo "== invalid L1 table offset =="
|
||||
_make_test_img $size
|
||||
poke_file "$TEST_IMG" "40" "\xff\xff\xff\xff\xff\xff\xff\xff"
|
||||
$QEMU_IO -f "$IMGFMT" -c "read 0 $size" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
echo
|
||||
echo "== invalid image size =="
|
||||
_make_test_img $size
|
||||
poke_file "$TEST_IMG" "48" "\xff\xff\xff\xff\xff\xff\xff\xff"
|
||||
$QEMU_IO -f "$IMGFMT" -c "read 0 $size" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
|
||||
|
||||
# success, all done
|
||||
echo "*** done"
|
||||
rm -f $seq.full
|
||||
status=0
|
||||
|
|
@ -0,0 +1,37 @@
|
|||
QA output created by 116
|
||||
|
||||
== truncated header cluster ==
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
|
||||
qemu-io: can't open device TEST_DIR/t.qed: Could not open 'TEST_DIR/t.qed': Invalid argument
|
||||
no file open, try 'help open'
|
||||
|
||||
== invalid header magic ==
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
|
||||
qemu-io: can't open device TEST_DIR/t.qed: Image not in QED format
|
||||
no file open, try 'help open'
|
||||
|
||||
== invalid cluster size ==
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
|
||||
qemu-io: can't open device TEST_DIR/t.qed: Could not open 'TEST_DIR/t.qed': Invalid argument
|
||||
no file open, try 'help open'
|
||||
|
||||
== invalid table size ==
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
|
||||
qemu-io: can't open device TEST_DIR/t.qed: Could not open 'TEST_DIR/t.qed': Invalid argument
|
||||
no file open, try 'help open'
|
||||
|
||||
== invalid header size ==
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
|
||||
qemu-io: can't open device TEST_DIR/t.qed: Could not open 'TEST_DIR/t.qed': Invalid argument
|
||||
no file open, try 'help open'
|
||||
|
||||
== invalid L1 table offset ==
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
|
||||
qemu-io: can't open device TEST_DIR/t.qed: Could not open 'TEST_DIR/t.qed': Invalid argument
|
||||
no file open, try 'help open'
|
||||
|
||||
== invalid image size ==
|
||||
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728
|
||||
qemu-io: can't open device TEST_DIR/t.qed: Could not open 'TEST_DIR/t.qed': Invalid argument
|
||||
no file open, try 'help open'
|
||||
*** done
|
||||
|
|
@ -200,6 +200,7 @@ _filter_img_info()
|
|||
sed -e "s#$IMGPROTO:$TEST_DIR#TEST_DIR#g" \
|
||||
-e "s#$TEST_DIR#TEST_DIR#g" \
|
||||
-e "s#$IMGFMT#IMGFMT#g" \
|
||||
-e 's#nbd://127.0.0.1:10810$#TEST_DIR/t.IMGFMT#g' \
|
||||
-e "/encrypted: yes/d" \
|
||||
-e "/cluster_size: [0-9]\\+/d" \
|
||||
-e "/table_size: [0-9]\\+/d" \
|
||||
|
|
|
|||
|
|
@ -153,7 +153,7 @@ _make_test_img()
|
|||
|
||||
# Start an NBD server on the image file, which is what we'll be talking to
|
||||
if [ $IMGPROTO = "nbd" ]; then
|
||||
eval "$QEMU_NBD -v -t -b 127.0.0.1 -p 10810 $TEST_IMG_FILE &"
|
||||
eval "$QEMU_NBD -v -t -b 127.0.0.1 -p 10810 -f $IMGFMT $TEST_IMG_FILE &"
|
||||
QEMU_NBD_PID=$!
|
||||
sleep 1 # FIXME: qemu-nbd needs to be listening before we continue
|
||||
fi
|
||||
|
|
|
|||
|
|
@ -116,3 +116,4 @@
|
|||
111 rw auto quick
|
||||
113 rw auto quick
|
||||
114 rw auto quick
|
||||
116 rw auto quick
|
||||
|
|
|
|||
|
|
@ -288,7 +288,7 @@ def main(supported_fmts=[], supported_oses=['linux']):
|
|||
if supported_fmts and (imgfmt not in supported_fmts):
|
||||
notrun('not suitable for this image format: %s' % imgfmt)
|
||||
|
||||
if sys.platform not in supported_oses:
|
||||
if True not in [sys.platform.startswith(x) for x in supported_oses]:
|
||||
notrun('not suitable for this OS: %s' % sys.platform)
|
||||
|
||||
# We need to filter out the time taken from the output so that qemu-iotest
|
||||
|
|
|
|||
|
|
@ -0,0 +1,119 @@
|
|||
/*
|
||||
* Test block device write threshold
|
||||
*
|
||||
* This work is licensed under the terms of the GNU LGPL, version 2 or later.
|
||||
* See the COPYING.LIB file in the top-level directory.
|
||||
*
|
||||
*/
|
||||
|
||||
#include <glib.h>
|
||||
#include <stdint.h>
|
||||
#include "block/block_int.h"
|
||||
#include "block/write-threshold.h"
|
||||
|
||||
|
||||
static void test_threshold_not_set_on_init(void)
|
||||
{
|
||||
uint64_t res;
|
||||
BlockDriverState bs;
|
||||
memset(&bs, 0, sizeof(bs));
|
||||
|
||||
g_assert(!bdrv_write_threshold_is_set(&bs));
|
||||
|
||||
res = bdrv_write_threshold_get(&bs);
|
||||
g_assert_cmpint(res, ==, 0);
|
||||
}
|
||||
|
||||
static void test_threshold_set_get(void)
|
||||
{
|
||||
uint64_t threshold = 4 * 1024 * 1024;
|
||||
uint64_t res;
|
||||
BlockDriverState bs;
|
||||
memset(&bs, 0, sizeof(bs));
|
||||
|
||||
bdrv_write_threshold_set(&bs, threshold);
|
||||
|
||||
g_assert(bdrv_write_threshold_is_set(&bs));
|
||||
|
||||
res = bdrv_write_threshold_get(&bs);
|
||||
g_assert_cmpint(res, ==, threshold);
|
||||
}
|
||||
|
||||
static void test_threshold_multi_set_get(void)
|
||||
{
|
||||
uint64_t threshold1 = 4 * 1024 * 1024;
|
||||
uint64_t threshold2 = 15 * 1024 * 1024;
|
||||
uint64_t res;
|
||||
BlockDriverState bs;
|
||||
memset(&bs, 0, sizeof(bs));
|
||||
|
||||
bdrv_write_threshold_set(&bs, threshold1);
|
||||
bdrv_write_threshold_set(&bs, threshold2);
|
||||
res = bdrv_write_threshold_get(&bs);
|
||||
g_assert_cmpint(res, ==, threshold2);
|
||||
}
|
||||
|
||||
static void test_threshold_not_trigger(void)
|
||||
{
|
||||
uint64_t amount = 0;
|
||||
uint64_t threshold = 4 * 1024 * 1024;
|
||||
BlockDriverState bs;
|
||||
BdrvTrackedRequest req;
|
||||
|
||||
memset(&bs, 0, sizeof(bs));
|
||||
memset(&req, 0, sizeof(req));
|
||||
req.offset = 1024;
|
||||
req.bytes = 1024;
|
||||
|
||||
bdrv_write_threshold_set(&bs, threshold);
|
||||
amount = bdrv_write_threshold_exceeded(&bs, &req);
|
||||
g_assert_cmpuint(amount, ==, 0);
|
||||
}
|
||||
|
||||
|
||||
static void test_threshold_trigger(void)
|
||||
{
|
||||
uint64_t amount = 0;
|
||||
uint64_t threshold = 4 * 1024 * 1024;
|
||||
BlockDriverState bs;
|
||||
BdrvTrackedRequest req;
|
||||
|
||||
memset(&bs, 0, sizeof(bs));
|
||||
memset(&req, 0, sizeof(req));
|
||||
req.offset = (4 * 1024 * 1024) - 1024;
|
||||
req.bytes = 2 * 1024;
|
||||
|
||||
bdrv_write_threshold_set(&bs, threshold);
|
||||
amount = bdrv_write_threshold_exceeded(&bs, &req);
|
||||
g_assert_cmpuint(amount, >=, 1024);
|
||||
}
|
||||
|
||||
typedef struct TestStruct {
|
||||
const char *name;
|
||||
void (*func)(void);
|
||||
} TestStruct;
|
||||
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
size_t i;
|
||||
TestStruct tests[] = {
|
||||
{ "/write-threshold/not-set-on-init",
|
||||
test_threshold_not_set_on_init },
|
||||
{ "/write-threshold/set-get",
|
||||
test_threshold_set_get },
|
||||
{ "/write-threshold/multi-set-get",
|
||||
test_threshold_multi_set_get },
|
||||
{ "/write-threshold/not-trigger",
|
||||
test_threshold_not_trigger },
|
||||
{ "/write-threshold/trigger",
|
||||
test_threshold_trigger },
|
||||
{ NULL, NULL }
|
||||
};
|
||||
|
||||
g_test_init(&argc, &argv, NULL);
|
||||
for (i = 0; tests[i].name != NULL; i++) {
|
||||
g_test_add_func(tests[i].name, tests[i].func);
|
||||
}
|
||||
return g_test_run();
|
||||
}
|
||||
|
|
@ -116,6 +116,7 @@ virtio_blk_req_complete(void *req, int status) "req %p status %d"
|
|||
virtio_blk_rw_complete(void *req, int ret) "req %p ret %d"
|
||||
virtio_blk_handle_write(void *req, uint64_t sector, size_t nsectors) "req %p sector %"PRIu64" nsectors %zu"
|
||||
virtio_blk_handle_read(void *req, uint64_t sector, size_t nsectors) "req %p sector %"PRIu64" nsectors %zu"
|
||||
virtio_blk_submit_multireq(void *mrb, int start, int num_reqs, uint64_t sector, size_t nsectors, bool is_write) "mrb %p start %d num_reqs %d sector %"PRIu64" nsectors %zu is_write %d"
|
||||
|
||||
# hw/block/dataplane/virtio-blk.c
|
||||
virtio_blk_data_plane_start(void *s) "dataplane %p"
|
||||
|
|
|
|||
Loading…
Reference in New Issue