This reinstates commit b008326744
,
which was temporarily reverted for the 3.0 release so that libvirt gets
some extra time to update their command lines.
The -drive option serial was deprecated in QEMU 2.10. It's time to
remove it.
Tests need to be updated to set the serial number with -global instead
of using the -drive option.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
121 lines
3.4 KiB
C
121 lines
3.4 KiB
C
/*
|
|
* Common code for block device models
|
|
*
|
|
* Copyright (C) 2012 Red Hat, Inc.
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or
|
|
* later. See the COPYING file in the top-level directory.
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "sysemu/blockdev.h"
|
|
#include "sysemu/block-backend.h"
|
|
#include "hw/block/block.h"
|
|
#include "qapi/error.h"
|
|
#include "qapi/qapi-types-block.h"
|
|
#include "qemu/error-report.h"
|
|
|
|
void blkconf_blocksizes(BlockConf *conf)
|
|
{
|
|
BlockBackend *blk = conf->blk;
|
|
BlockSizes blocksizes;
|
|
int backend_ret;
|
|
|
|
backend_ret = blk_probe_blocksizes(blk, &blocksizes);
|
|
/* fill in detected values if they are not defined via qemu command line */
|
|
if (!conf->physical_block_size) {
|
|
if (!backend_ret) {
|
|
conf->physical_block_size = blocksizes.phys;
|
|
} else {
|
|
conf->physical_block_size = BDRV_SECTOR_SIZE;
|
|
}
|
|
}
|
|
if (!conf->logical_block_size) {
|
|
if (!backend_ret) {
|
|
conf->logical_block_size = blocksizes.log;
|
|
} else {
|
|
conf->logical_block_size = BDRV_SECTOR_SIZE;
|
|
}
|
|
}
|
|
}
|
|
|
|
bool blkconf_apply_backend_options(BlockConf *conf, bool readonly,
|
|
bool resizable, Error **errp)
|
|
{
|
|
BlockBackend *blk = conf->blk;
|
|
BlockdevOnError rerror, werror;
|
|
uint64_t perm, shared_perm;
|
|
bool wce;
|
|
int ret;
|
|
|
|
perm = BLK_PERM_CONSISTENT_READ;
|
|
if (!readonly) {
|
|
perm |= BLK_PERM_WRITE;
|
|
}
|
|
|
|
shared_perm = BLK_PERM_CONSISTENT_READ | BLK_PERM_WRITE_UNCHANGED |
|
|
BLK_PERM_GRAPH_MOD;
|
|
if (resizable) {
|
|
shared_perm |= BLK_PERM_RESIZE;
|
|
}
|
|
if (conf->share_rw) {
|
|
shared_perm |= BLK_PERM_WRITE;
|
|
}
|
|
|
|
ret = blk_set_perm(blk, perm, shared_perm, errp);
|
|
if (ret < 0) {
|
|
return false;
|
|
}
|
|
|
|
switch (conf->wce) {
|
|
case ON_OFF_AUTO_ON: wce = true; break;
|
|
case ON_OFF_AUTO_OFF: wce = false; break;
|
|
case ON_OFF_AUTO_AUTO: wce = blk_enable_write_cache(blk); break;
|
|
default:
|
|
abort();
|
|
}
|
|
|
|
rerror = conf->rerror;
|
|
if (rerror == BLOCKDEV_ON_ERROR_AUTO) {
|
|
rerror = blk_get_on_error(blk, true);
|
|
}
|
|
|
|
werror = conf->werror;
|
|
if (werror == BLOCKDEV_ON_ERROR_AUTO) {
|
|
werror = blk_get_on_error(blk, false);
|
|
}
|
|
|
|
blk_set_enable_write_cache(blk, wce);
|
|
blk_set_on_error(blk, rerror, werror);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool blkconf_geometry(BlockConf *conf, int *ptrans,
|
|
unsigned cyls_max, unsigned heads_max, unsigned secs_max,
|
|
Error **errp)
|
|
{
|
|
if (!conf->cyls && !conf->heads && !conf->secs) {
|
|
hd_geometry_guess(conf->blk,
|
|
&conf->cyls, &conf->heads, &conf->secs,
|
|
ptrans);
|
|
} else if (ptrans && *ptrans == BIOS_ATA_TRANSLATION_AUTO) {
|
|
*ptrans = hd_bios_chs_auto_trans(conf->cyls, conf->heads, conf->secs);
|
|
}
|
|
if (conf->cyls || conf->heads || conf->secs) {
|
|
if (conf->cyls < 1 || conf->cyls > cyls_max) {
|
|
error_setg(errp, "cyls must be between 1 and %u", cyls_max);
|
|
return false;
|
|
}
|
|
if (conf->heads < 1 || conf->heads > heads_max) {
|
|
error_setg(errp, "heads must be between 1 and %u", heads_max);
|
|
return false;
|
|
}
|
|
if (conf->secs < 1 || conf->secs > secs_max) {
|
|
error_setg(errp, "secs must be between 1 and %u", secs_max);
|
|
return false;
|
|
}
|
|
}
|
|
return true;
|
|
}
|