From: Guenter Roeck <linux@roeck-us.net>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org, linux-kernel@vger.kernel.org,
Guenter Roeck <linux@roeck-us.net>, Meelis Roos <mroos@linux.ee>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: [PATCH] x86/l1tf: Fix build error seen if CONFIG_KVM_INTEL is disabled
Date: Tue, 14 Aug 2018 14:55:58 -0700 [thread overview]
Message-ID: <1534283758-15612-1-git-send-email-linux@roeck-us.net> (raw)
allmodconfig+CONFIG_INTEL_KVM=n results in the following build error.
ERROR: "l1tf_vmx_mitigation" [arch/x86/kvm/kvm.ko] undefined!
Fixes: 5b76a3cff011 ("KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry")
Reported-by: Meelis Roos <mroos@linux.ee>
Cc: Meelis Roos <mroos@linux.ee>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
arch/x86/kernel/cpu/bugs.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 27830880e7a7..cb4a16292aa7 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -664,10 +664,9 @@ void x86_spec_ctrl_setup_ap(void)
enum l1tf_mitigations l1tf_mitigation __ro_after_init = L1TF_MITIGATION_FLUSH;
#if IS_ENABLED(CONFIG_KVM_INTEL)
EXPORT_SYMBOL_GPL(l1tf_mitigation);
-
+#endif
enum vmx_l1d_flush_state l1tf_vmx_mitigation = VMENTER_L1D_FLUSH_AUTO;
EXPORT_SYMBOL_GPL(l1tf_vmx_mitigation);
-#endif
static void __init l1tf_select_mitigation(void)
{
--
2.7.4
reply other threads:[~2018-08-14 21:56 UTC|newest]
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