[PATCH v3] KVM: PPC: Book3S HV: Native usage of the XIVE interrupt controller

[Paul Mackerras]

To get this to compile for all my test configs takes this additional
patch.  I test-build configs with PR KVM and not HV (both modular and
built-in) and a config with HV enabled but CONFIG_KVM_XICS=n.  Please
squash this into your topic branch.

Paul.

diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index c56939ecc554..24de532c1736 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -200,7 +200,7 @@ config KVM_XICS
 config KVM_XIVE
 	bool
 	default y
-	depends on KVM_XICS && PPC_XIVE_NATIVE
+	depends on KVM_XICS && PPC_XIVE_NATIVE && KVM_BOOK3S_HV_POSSIBLE
 
 source drivers/vhost/Kconfig
 
diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c
index 5c00813e1e0e..846b40cb3a62 100644
--- a/arch/powerpc/kvm/book3s_hv_builtin.c
+++ b/arch/powerpc/kvm/book3s_hv_builtin.c
@@ -513,6 +513,7 @@ static long kvmppc_read_one_intr(bool *again)
 	return kvmppc_check_passthru(xisr, xirr, again);
 }
 
+#ifdef CONFIG_KVM_XICS
 static inline bool is_rm(void)
 {
 	return !(mfmsr() & MSR_DR);
@@ -591,3 +592,4 @@ int kvmppc_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr)
 	} else
 		return xics_rm_h_eoi(vcpu, xirr);
 }
+#endif /* CONFIG_KVM_XICS */
diff --git a/arch/powerpc/kvm/book3s_xics.h b/arch/powerpc/kvm/book3s_xics.h
index 5016676847c9..453c9e518c19 100644
--- a/arch/powerpc/kvm/book3s_xics.h
+++ b/arch/powerpc/kvm/book3s_xics.h
@@ -10,6 +10,7 @@
 #ifndef _KVM_PPC_BOOK3S_XICS_H
 #define _KVM_PPC_BOOK3S_XICS_H
 
+#ifdef CONFIG_KVM_XICS
 /*
  * We use a two-level tree to store interrupt source information.
  * There are up to 1024 ICS nodes, each of which can represent
@@ -150,4 +151,5 @@ extern int xics_rm_h_ipi(struct kvm_vcpu *vcpu, unsigned long server,
 extern int xics_rm_h_cppr(struct kvm_vcpu *vcpu, unsigned long cppr);
 extern int xics_rm_h_eoi(struct kvm_vcpu *vcpu, unsigned long xirr);
 
+#endif /* CONFIG_KVM_XICS */
 #endif /* _KVM_PPC_BOOK3S_XICS_H */
diff --git a/arch/powerpc/kvm/book3s_xive.h b/arch/powerpc/kvm/book3s_xive.h
index fcccfbc2c4f4..5938f7644dc1 100644
--- a/arch/powerpc/kvm/book3s_xive.h
+++ b/arch/powerpc/kvm/book3s_xive.h
@@ -9,6 +9,7 @@
 #ifndef _KVM_PPC_BOOK3S_XIVE_H
 #define _KVM_PPC_BOOK3S_XIVE_H
 
+#ifdef CONFIG_KVM_XICS
 #include "book3s_xics.h"
 
 /*
@@ -251,4 +252,5 @@ extern int (*__xive_vm_h_ipi)(struct kvm_vcpu *vcpu, unsigned long server,
 extern int (*__xive_vm_h_cppr)(struct kvm_vcpu *vcpu, unsigned long cppr);
 extern int (*__xive_vm_h_eoi)(struct kvm_vcpu *vcpu, unsigned long xirr);
 
+#endif /* CONFIG_KVM_XICS */
 #endif /* _KVM_PPC_BOOK3S_XICS_H */
diff --git a/arch/powerpc/sysdev/xive/native.c b/arch/powerpc/sysdev/xive/native.c
index 9d312c96a897..6feac0a758e1 100644
--- a/arch/powerpc/sysdev/xive/native.c
+++ b/arch/powerpc/sysdev/xive/native.c
@@ -267,6 +267,7 @@ static int xive_native_get_ipi(unsigned int cpu, struct xive_cpu *xc)
 	}
 	return 0;
 }
+#endif /* CONFIG_SMP */
 
 u32 xive_native_alloc_irq(void)
 {
@@ -295,6 +296,7 @@ void xive_native_free_irq(u32 irq)
 }
 EXPORT_SYMBOL_GPL(xive_native_free_irq);
 
+#ifdef CONFIG_SMP
 static void xive_native_put_ipi(unsigned int cpu, struct xive_cpu *xc)
 {
 	s64 rc;