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>

1 files changed, 8 insertions, 2 deletions

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e1a81267f3f6..ed31c31b2485 100644
--- 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)