[PATCH] KVM: allow host header to be included even for !CONFIG_KVM

From: Kevin Hilman
Date: Thu Mar 14 2013 - 20:13:54 EST


The new context tracking subsystem unconditionally includes kvm_host.h
headers for the guest enter/exit macros. This causes a compile
failure when KVM is not enabled.

Fix by adding an IS_ENABLED(CONFIG_KVM) check to kvm_host so it can
be included/compiled even when KVM is not enabled.

Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Signed-off-by: Kevin Hilman <khilman@xxxxxxxxxx>
---
Applies on v3.9-rc2

include/linux/kvm_host.h | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index cad77fe..a942863 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1,6 +1,8 @@
#ifndef __KVM_HOST_H
#define __KVM_HOST_H

+#if IS_ENABLED(CONFIG_KVM)
+
/*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
@@ -1055,5 +1057,8 @@ static inline bool kvm_vcpu_eligible_for_directed_yield(struct kvm_vcpu *vcpu)
}

#endif /* CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT */
+#else
+static inline void __guest_enter(void) { return; }
+static inline void __guest_exit(void) { return; }
+#endif /* IS_ENABLED(CONFIG_KVM) */
#endif
-
--
1.8.1.2

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