void qmp_block_set_io_throttle(const char *device, int64_t bps, int64_t bps_rd, int64_t bps_wr, int64_t iops, int64_t iops_rd, int64_t iops_wr, Error **errp) { BlockIOLimit io_limits; BlockDriverState *bs; bs = bdrv_find(device); if (!bs) { error_set(errp, QERR_DEVICE_NOT_FOUND, device); return; } io_limits.bps[BLOCK_IO_LIMIT_TOTAL] = bps; io_limits.bps[BLOCK_IO_LIMIT_READ] = bps_rd; io_limits.bps[BLOCK_IO_LIMIT_WRITE] = bps_wr; io_limits.iops[BLOCK_IO_LIMIT_TOTAL]= iops; io_limits.iops[BLOCK_IO_LIMIT_READ] = iops_rd; io_limits.iops[BLOCK_IO_LIMIT_WRITE]= iops_wr; if (!do_check_io_limits(&io_limits)) { error_set(errp, QERR_INVALID_PARAMETER_COMBINATION); return; } bs->io_limits = io_limits; bs->slice_time = BLOCK_IO_SLICE_TIME; if (!bs->io_limits_enabled && bdrv_io_limits_enabled(bs)) { bdrv_io_limits_enable(bs); } else if (bs->io_limits_enabled && !bdrv_io_limits_enabled(bs)) { bdrv_io_limits_disable(bs); } else { if (bs->block_timer) { qemu_mod_timer(bs->block_timer, qemu_get_clock_ns(vm_clock)); } } }