linux-kernel - [PATCH] x86/hyperv: LP creation with lp

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Message-Id: <20210531074046.113452-1-kumarpraveen@linux.microsoft.com>
Date:   Mon, 31 May 2021 13:10:46 +0530
From:   Praveen Kumar <kumarpraveen@...ux.microsoft.com>
To:     linux-hyperv@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     kys@...rosoft.com, haiyangz@...rosoft.com, sthemmin@...rosoft.com,
        wei.liu@...nel.org, decui@...rosoft.com, tglx@...utronix.de,
        mingo@...hat.com, bp@...en8.de
Subject: [PATCH] x86/hyperv: LP creation with lp_index on same CPU-id

The hypervisor expects the lp_index to be same as cpu-id during LP creation
This fix correct the same, as cpu_physical_id can give different cpu-id.

Signed-off-by: Praveen Kumar <kumarpraveen@...ux.microsoft.com>
---
 arch/x86/kernel/cpu/mshyperv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 22f13343b5da..4fa0a4280895 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/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);
 	}
 
-- 
2.25.1