From: Guenter Roeck <linux@roeck-us.net>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org, Guenter Roeck <linux@roeck-us.net>,
Meelis Roos <mroos@linux.ee>, Paolo Bonzini <pbonzini@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Linus Torvalds <torvalds@linux-foundation.org>
Subject: [PATCH v4.{9,14,17,18}] x86/l1tf: Fix build error seen if CONFIG_KVM_INTEL is disabled
Date: Wed, 15 Aug 2018 10:15:21 -0700 [thread overview]
Message-ID: <1534353321-21206-1-git-send-email-linux@roeck-us.net> (raw)
commit 1eb46908b35dfbac0ec1848d4b1e39667e0187e9 upstream
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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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 5229eaf73828..ac67a76550bd 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -647,10 +647,9 @@ 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
next reply other threads:[~2018-08-15 20:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-15 17:15 Guenter Roeck [this message]
2018-08-15 17:32 ` [PATCH v4.{9,14,17,18}] x86/l1tf: Fix build error seen if CONFIG_KVM_INTEL is disabled Greg Kroah-Hartman
2018-08-15 17:35 ` Guenter Roeck
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