linux-kernel - [PATCH] KVM: X86: Reset the three MSR list number variables to 0 in kvm_init_msr

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Date:   Wed, 13 Nov 2019 09:15:21 +0800
From:   Xiaoyao Li <xiaoyao.li@...el.com>
To:     Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Xiaoyao Li <xiaoyao.li@...el.com>,
        Chenyi Qiang <chenyi.qiang@...el.com>
Subject: [PATCH] KVM: X86: Reset the three MSR list number variables to 0 in kvm_init_msr_list()

When applying commit 7a5ee6edb42e ("KVM: X86: Fix initialization of MSR
lists"), it forgot to reset the three MSR lists number varialbes to 0
while removing the useless conditionals.

Fixes: 7a5ee6edb42e (KVM: X86: Fix initialization of MSR lists)
Signed-off-by: Xiaoyao Li <xiaoyao.li@...el.com>
---
 arch/x86/kvm/x86.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 8c8a5e20ea06..9368b0e6bf21 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5102,6 +5102,10 @@ static void kvm_init_msr_list(void)
 
 	perf_get_x86_pmu_capability(&x86_pmu);
 
+	num_msrs_to_save = 0;
+	num_emulated_msrs = 0;
+	num_msr_based_features = 0;
+
 	for (i = 0; i < ARRAY_SIZE(msrs_to_save_all); i++) {
 		if (rdmsr_safe(msrs_to_save_all[i], &dummy[0], &dummy[1]) < 0)
 			continue;
-- 
2.19.1