41 lines
1.4 KiB
Diff
41 lines
1.4 KiB
Diff
From 1eb46908b35dfbac0ec1848d4b1e39667e0187e9 Mon Sep 17 00:00:00 2001
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From: Guenter Roeck <linux@roeck-us.net>
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Date: Wed, 15 Aug 2018 08:38:33 -0700
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Subject: x86/l1tf: Fix build error seen if CONFIG_KVM_INTEL is disabled
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From: Guenter Roeck <linux@roeck-us.net>
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commit 1eb46908b35dfbac0ec1848d4b1e39667e0187e9 upstream.
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allmodconfig+CONFIG_INTEL_KVM=n results in the following build error.
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ERROR: "l1tf_vmx_mitigation" [arch/x86/kvm/kvm.ko] undefined!
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Fixes: 5b76a3cff011 ("KVM: VMX: Tell the nested hypervisor to skip L1D flush on vmentry")
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Reported-by: Meelis Roos <mroos@linux.ee>
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Cc: Meelis Roos <mroos@linux.ee>
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Cc: Paolo Bonzini <pbonzini@redhat.com>
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Cc: Thomas Gleixner <tglx@linutronix.de>
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Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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arch/x86/kernel/cpu/bugs.c | 3 +--
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1 file changed, 1 insertion(+), 2 deletions(-)
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--- a/arch/x86/kernel/cpu/bugs.c
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+++ b/arch/x86/kernel/cpu/bugs.c
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@@ -648,10 +648,9 @@ void x86_spec_ctrl_setup_ap(void)
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enum l1tf_mitigations l1tf_mitigation __ro_after_init = L1TF_MITIGATION_FLUSH;
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#if IS_ENABLED(CONFIG_KVM_INTEL)
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EXPORT_SYMBOL_GPL(l1tf_mitigation);
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-
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+#endif
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enum vmx_l1d_flush_state l1tf_vmx_mitigation = VMENTER_L1D_FLUSH_AUTO;
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EXPORT_SYMBOL_GPL(l1tf_vmx_mitigation);
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-#endif
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static void __init l1tf_select_mitigation(void)
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{
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