RE: [PATCH v2] Drivers: hv: vmbus: Optimize boot time by concurrent execution of hv_synic_init()

From: Dexuan Cui
Date: Mon Jul 29 2024 - 16:17:35 EST


> From: Saurabh Sengar <ssengar@xxxxxxxxxxxxxxxxxxx>
> Sent: Monday, July 29, 2024 12:57 AM
> [...]
> + /* register the callback for hotplug CPUs */
> + ret =
> cpuhp_setup_state_nocalls_cpuslocked(CPUHP_AP_ONLINE_DYN,
> "hyperv/vmbus:online",

AFAIK, Hyper-V doesn't support vCPU "hotplug" for VMs; it does
support vCPU online/offline'ing.

To be more accurate, I suggested the comment below instead.
/* Register the callbacks for possible CPU online/offline'ing */

Otherwise, LGTM
Reviewed-by: Dexuan Cui <decui@xxxxxxxxxxxxx>