Add Book3s_64 intercept helpers

We need to intercept interrupt vectors. To do that, let's add a file
we can always include which only activates the intercepts when we have
then configured.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/include/asm/kvm_book3s_64_asm.h

+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Copyright SUSE Linux Products GmbH 2009
+ *
+ * Authors: Alexander Graf <agraf@suse.de>
+ */
+
+#ifndef __ASM_KVM_BOOK3S_ASM_H__
+#define __ASM_KVM_BOOK3S_ASM_H__
+
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
+
+#include <asm/kvm_asm.h>
+
+.macro DO_KVM intno
+	.if (\intno == BOOK3S_INTERRUPT_SYSTEM_RESET) || \
+	    (\intno == BOOK3S_INTERRUPT_MACHINE_CHECK) || \
+	    (\intno == BOOK3S_INTERRUPT_DATA_STORAGE) || \
+	    (\intno == BOOK3S_INTERRUPT_INST_STORAGE) || \
+	    (\intno == BOOK3S_INTERRUPT_DATA_SEGMENT) || \
+	    (\intno == BOOK3S_INTERRUPT_INST_SEGMENT) || \
+	    (\intno == BOOK3S_INTERRUPT_EXTERNAL) || \
+	    (\intno == BOOK3S_INTERRUPT_ALIGNMENT) || \
+	    (\intno == BOOK3S_INTERRUPT_PROGRAM) || \
+	    (\intno == BOOK3S_INTERRUPT_FP_UNAVAIL) || \
+	    (\intno == BOOK3S_INTERRUPT_DECREMENTER) || \
+	    (\intno == BOOK3S_INTERRUPT_SYSCALL) || \
+	    (\intno == BOOK3S_INTERRUPT_TRACE) || \
+	    (\intno == BOOK3S_INTERRUPT_PERFMON) || \
+	    (\intno == BOOK3S_INTERRUPT_ALTIVEC) || \
+	    (\intno == BOOK3S_INTERRUPT_VSX)
+
+	b	kvmppc_trampoline_\intno
+kvmppc_resume_\intno:
+
+	.endif
+.endm
+
+#else
+
+.macro DO_KVM intno
+.endm
+
+#endif /* CONFIG_KVM_BOOK3S_64_HANDLER */
+
+#endif /* __ASM_KVM_BOOK3S_ASM_H__ */