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 <namit@cs.technion.ac.il>
Message-Id: <1428864435-4732-1-git-send-email-namit@cs.technion.ac.il>
Cc: stable@vger.kernel.org # 3.15+
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e1a8126..ed31c31 100644 (file)
--- 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)