KVM: x86: Fix MSR_IA32_BNDCFGS in msrs_to_save

kvm_init_msr_list is currently called before hardware_setup. As a result, vmx_mpx_supported always returns false when kvm_init_msr_list checks whether to save MSR_IA32_BNDCFGS. Move kvm_init_msr_list after vmx_hardware_setup is called to fix this issue. Signed-off-by: Nadav Amit <[email protected]> Message-Id: <[email protected]> Cc: [email protected] # 3.15+ Signed-off-by: Paolo Bonzini <[email protected]>
zhenyw · Apr 14, 2015 · 9e9c3fe · 9e9c3fe
1 parent b79013b
commit 9e9c3fe
Showing 1 changed file with 8 additions and 2 deletions.
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
@@ -5799,7 +5799,6 @@ int kvm_arch_init(void *opaque)
 	kvm_set_mmio_spte_mask();
 
 	kvm_x86_ops = ops;
-	kvm_init_msr_list();
 
 	kvm_mmu_set_mask_ptes(PT_USER_MASK, PT_ACCESSED_MASK,
 			PT_DIRTY_MASK, PT64_NX_MASK, 0);
@@ -7253,7 +7252,14 @@ void kvm_arch_hardware_disable(void)
 
 int kvm_arch_hardware_setup(void)
 {
-	return kvm_x86_ops->hardware_setup();
+	int r;
+
+	r = kvm_x86_ops->hardware_setup();
+	if (r != 0)
+		return r;
+
+	kvm_init_msr_list();
+	return 0;
 }
 
 void kvm_arch_hardware_unsetup(void)