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qemu: Add bps_max and friends to qemu command generation 

Check the arability of the options with the current qemu binary,
add them in the varable opt if yes, print a message if not.

Signed-off-by: Matthias Gatto <matthias.gatto@outscale.com>
This commit is contained in:
Matthias Gatto 2014-10-29 13:16:04 +01:00 committed by Michal Privoznik
parent 901ffda286
commit 12952bb14a
1 changed files with 56 additions and 1 deletions
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57
src/qemu/qemu_command.c
View File

@ -3670,12 +3670,32 @@ qemuBuildDriveStr(virConnectPtr conn,
goto error;
}
/* block I/O throttling 1.7 */
if ((disk->blkdeviotune.total_bytes_sec_max ||
disk->blkdeviotune.read_bytes_sec_max ||
disk->blkdeviotune.write_bytes_sec_max ||
disk->blkdeviotune.total_iops_sec_max ||
disk->blkdeviotune.read_iops_sec_max ||
disk->blkdeviotune.write_iops_sec_max) &&
!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DRIVE_IOTUNE_MAX)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("there is some block I/O throttling paramater that are not supported with this "
"QEMU binary(need QEMU 1.7 or superior)"));
goto error;
}
if (disk->blkdeviotune.total_bytes_sec > LLONG_MAX ||
disk->blkdeviotune.read_bytes_sec > LLONG_MAX ||
disk->blkdeviotune.write_bytes_sec > LLONG_MAX ||
disk->blkdeviotune.total_iops_sec > LLONG_MAX ||
disk->blkdeviotune.read_iops_sec > LLONG_MAX ||
disk->blkdeviotune.write_iops_sec > LLONG_MAX) {
disk->blkdeviotune.write_iops_sec > LLONG_MAX ||
disk->blkdeviotune.total_bytes_sec_max > LLONG_MAX ||
disk->blkdeviotune.read_bytes_sec_max > LLONG_MAX ||
disk->blkdeviotune.write_bytes_sec_max > LLONG_MAX ||
disk->blkdeviotune.total_iops_sec_max > LLONG_MAX ||
disk->blkdeviotune.read_iops_sec_max > LLONG_MAX ||
disk->blkdeviotune.write_iops_sec_max > LLONG_MAX) {
virReportError(VIR_ERR_OVERFLOW,
_("block I/O throttle limit must "
"be less than %llu using QEMU"), LLONG_MAX);
@ -3712,6 +3732,41 @@ qemuBuildDriveStr(virConnectPtr conn,
disk->blkdeviotune.write_iops_sec);
}
if (disk->blkdeviotune.total_bytes_sec_max) {
virBufferAsprintf(&opt, ",bps_max=%llu",
disk->blkdeviotune.total_bytes_sec_max);
}
if (disk->blkdeviotune.read_bytes_sec_max) {
virBufferAsprintf(&opt, ",bps_rd_max=%llu",
disk->blkdeviotune.read_bytes_sec_max);
}
if (disk->blkdeviotune.write_bytes_sec_max) {
virBufferAsprintf(&opt, ",bps_wr_max=%llu",
disk->blkdeviotune.write_bytes_sec_max);
}
if (disk->blkdeviotune.total_iops_sec_max) {
virBufferAsprintf(&opt, ",iops_max=%llu",
disk->blkdeviotune.total_iops_sec_max);
}
if (disk->blkdeviotune.read_iops_sec_max) {
virBufferAsprintf(&opt, ",iops_rd_max=%llu",
disk->blkdeviotune.read_iops_sec_max);
}
if (disk->blkdeviotune.write_iops_sec_max) {
virBufferAsprintf(&opt, ",iops_wr_max=%llu",
disk->blkdeviotune.write_iops_sec_max);
}
if (disk->blkdeviotune.write_iops_sec_max) {
virBufferAsprintf(&opt, ",iops_size=%llu",
disk->blkdeviotune.size_iops_sec);
}
if (virBufferCheckError(&opt) < 0)
goto error;