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 <mr...@linux.ee> Cc: Meelis Roos <mr...@linux.ee> Cc: Paolo Bonzini <pbonz...@redhat.com> Cc: Thomas Gleixner <t...@linutronix.de> Signed-off-by: Guenter Roeck <li...@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