x86/hyperv: fix logical processor creation

Microsoft Hypervisor expects the logical processor index to be the same
as CPU's index during logical processor creation. Using cpu_physical_id
confuses hypervisor's scheduler. That causes the root partition not boot
when core scheduler is used.

This patch removes the call to cpu_physical_id and uses the CPU index
directly for bringing up logical processor. This scheme works for both
classic scheduler and core scheduler.

Fixes: 333abaf (x86/hyperv: implement and use hv_smp_prepare_cpus)
Signed-off-by: Praveen Kumar <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Wei Liu <[email protected]>

Author: Praveen Kumar

arch/x86/kernel/cpu/mshyperv.c

@@ -236,7 +236,7 @@ static void __init hv_smp_prepare_cpus(unsigned int max_cpus)
 	for_each_present_cpu(i) {
 		if (i == 0)
 			continue;
-		ret = hv_call_add_logical_proc(numa_cpu_node(i), i, cpu_physical_id(i));
+		ret = hv_call_add_logical_proc(numa_cpu_node(i), i, i);
 		BUG_ON(ret);
 	}