kvm: powerpc: book3s: pr: Rename KVM_BOOK3S_PR to KVM_BOOK3S_PR_POSSIBLE

With later patches supporting PR kvm as a kernel module, the changes
that has to be built into the main kernel binary to enable PR KVM module
is now selected via KVM_BOOK3S_PR_POSSIBLE

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

arch/powerpc/include/asm/exception-64s.h

@@ -244,7 +244,7 @@ do_kvm_##n:								\
 #define KVM_HANDLER_SKIP(area, h, n)
 #endif
 
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 #define KVMTEST_PR(n)			__KVMTEST(n)
 #define KVM_HANDLER_PR(area, h, n)	__KVM_HANDLER(area, h, n)
 #define KVM_HANDLER_PR_SKIP(area, h, n)	__KVM_HANDLER_SKIP(area, h, n)

arch/powerpc/include/asm/kvm_book3s.h

@@ -304,7 +304,7 @@ static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
 	return vcpu->arch.fault_dar;
 }
 
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 
 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
 {
@@ -339,7 +339,7 @@ static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
 
 	return crit;
 }
-#else /* CONFIG_KVM_BOOK3S_PR */
+#else /* CONFIG_KVM_BOOK3S_PR_POSSIBLE */
 
 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
 {

arch/powerpc/include/asm/kvm_book3s_64.h

@@ -20,7 +20,7 @@
 #ifndef __ASM_KVM_BOOK3S_64_H__
 #define __ASM_KVM_BOOK3S_64_H__
 
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 static inline struct kvmppc_book3s_shadow_vcpu *svcpu_get(struct kvm_vcpu *vcpu)
 {
 	preempt_disable();

arch/powerpc/include/asm/kvm_host.h

@@ -257,7 +257,7 @@ struct kvm_arch {
 	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 	int hpt_cma_alloc;
 #endif /* CONFIG_KVM_BOOK3S_64_HV */
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 	struct mutex hpt_mutex;
 #endif
 #ifdef CONFIG_PPC_BOOK3S_64

arch/powerpc/include/asm/paca.h

@@ -166,7 +166,7 @@ struct paca_struct {
 	struct dtl_entry *dtl_curr;	/* pointer corresponding to dtl_ridx */
 
 #ifdef CONFIG_KVM_BOOK3S_HANDLER
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 	/* We use this to store guest state in */
 	struct kvmppc_book3s_shadow_vcpu shadow_vcpu;
 #endif

arch/powerpc/kernel/asm-offsets.c

@@ -533,7 +533,7 @@ int main(void)
 	DEFINE(VCPU_SLB_SIZE, sizeof(struct kvmppc_slb));
 
 #ifdef CONFIG_PPC_BOOK3S_64
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 	DEFINE(PACA_SVCPU, offsetof(struct paca_struct, shadow_vcpu));
 # define SVCPU_FIELD(x, f)	DEFINE(x, offsetof(struct paca_struct, shadow_vcpu.f))
 #else

arch/powerpc/kernel/exceptions-64s.S

@@ -425,7 +425,7 @@ data_access_check_stab:
 	mfspr	r9,SPRN_DSISR
 	srdi	r10,r10,60
 	rlwimi	r10,r9,16,0x20
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 	lbz	r9,HSTATE_IN_GUEST(r13)
 	rlwimi	r10,r9,8,0x300
 #endif

arch/powerpc/kvm/Kconfig

@@ -34,7 +34,7 @@ config KVM_BOOK3S_64_HANDLER
 	bool
 	select KVM_BOOK3S_HANDLER
 
-config KVM_BOOK3S_PR
+config KVM_BOOK3S_PR_POSSIBLE
 	bool
 	select KVM_MMIO
 	select MMU_NOTIFIER
@@ -44,7 +44,7 @@ config KVM_BOOK3S_32
 	depends on PPC_BOOK3S_32 && !SMP && !PTE_64BIT
 	select KVM
 	select KVM_BOOK3S_32_HANDLER
-	select KVM_BOOK3S_PR
+	select KVM_BOOK3S_PR_POSSIBLE
 	---help---
 	  Support running unmodified book3s_32 guest kernels
 	  in virtual machines on book3s_32 host processors.
@@ -91,7 +91,7 @@ config KVM_BOOK3S_64_HV
 config KVM_BOOK3S_64_PR
 	def_bool y
 	depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV
-	select KVM_BOOK3S_PR
+	select KVM_BOOK3S_PR_POSSIBLE
 
 config KVM_BOOKE_HV
 	bool

arch/powerpc/kvm/trace.h

@@ -94,7 +94,7 @@ TRACE_EVENT(kvm_exit,
 		__field(	unsigned long,	pc		)
 		__field(	unsigned long,	msr		)
 		__field(	unsigned long,	dar		)
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 		__field(	unsigned long,	srr1		)
 #endif
 		__field(	unsigned long,	last_inst	)
@@ -105,7 +105,7 @@ TRACE_EVENT(kvm_exit,
 		__entry->pc		= kvmppc_get_pc(vcpu);
 		__entry->dar		= kvmppc_get_fault_dar(vcpu);
 		__entry->msr		= vcpu->arch.shared->msr;
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 		__entry->srr1		= vcpu->arch.shadow_srr1;
 #endif
 		__entry->last_inst	= vcpu->arch.last_inst;
@@ -115,7 +115,7 @@ TRACE_EVENT(kvm_exit,
 		" | pc=0x%lx"
 		" | msr=0x%lx"
 		" | dar=0x%lx"
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 		" | srr1=0x%lx"
 #endif
 		" | last_inst=0x%lx"
@@ -124,7 +124,7 @@ TRACE_EVENT(kvm_exit,
 		__entry->pc,
 		__entry->msr,
 		__entry->dar,
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 		__entry->srr1,
 #endif
 		__entry->last_inst
@@ -236,7 +236,7 @@ TRACE_EVENT(kvm_check_requests,
  *                         Book3S trace points                           *
  *************************************************************************/
 
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 
 TRACE_EVENT(kvm_book3s_reenter,
 	TP_PROTO(int r, struct kvm_vcpu *vcpu),