kvm: powerpc: Add kvmppc_ops callback

This patch add a new callback kvmppc_ops. This will help us in enabling
both HV and PR KVM together in the same kernel. The actual change to
enable them together is done in the later patch in the series.

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

1 files changed, 66 insertions, 23 deletions

diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index 1823f38..326033c 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -106,13 +106,6 @@ extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
                                        struct kvm_interrupt *irq);
 extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu);
 extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
-
-extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
-                                  unsigned int op, int *advance);
-extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn,
-				     ulong val);
-extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn,
-				     ulong *val);
 extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);
 
 extern int kvmppc_booke_init(void);
@@ -135,8 +128,6 @@ extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
 				struct kvm_create_spapr_tce *args);
 extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
 			     unsigned long ioba, unsigned long tce);
-extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm,
-				struct kvm_allocate_rma *rma);
 extern struct kvm_rma_info *kvm_alloc_rma(void);
 extern void kvm_release_rma(struct kvm_rma_info *ri);
 extern struct page *kvm_alloc_hpt(unsigned long nr_pages);
@@ -177,6 +168,66 @@ extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
 extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
 extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
 
+union kvmppc_one_reg {
+	u32	wval;
+	u64	dval;
+	vector128 vval;
+	u64	vsxval[2];
+	struct {
+		u64	addr;
+		u64	length;
+	}	vpaval;
+};
+
+struct kvmppc_ops {
+	int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+	int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+	int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
+			   union kvmppc_one_reg *val);
+	int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
+			   union kvmppc_one_reg *val);
+	void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
+	void (*vcpu_put)(struct kvm_vcpu *vcpu);
+	void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
+	int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
+	struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
+	void (*vcpu_free)(struct kvm_vcpu *vcpu);
+	int (*check_requests)(struct kvm_vcpu *vcpu);
+	int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
+	void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
+	int (*prepare_memory_region)(struct kvm *kvm,
+				     struct kvm_memory_slot *memslot,
+				     struct kvm_userspace_memory_region *mem);
+	void (*commit_memory_region)(struct kvm *kvm,
+				     struct kvm_userspace_memory_region *mem,
+				     const struct kvm_memory_slot *old);
+	int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
+	int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
+			   unsigned long end);
+	int (*age_hva)(struct kvm *kvm, unsigned long hva);
+	int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
+	void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
+	void (*mmu_destroy)(struct kvm_vcpu *vcpu);
+	void (*free_memslot)(struct kvm_memory_slot *free,
+			     struct kvm_memory_slot *dont);
+	int (*create_memslot)(struct kvm_memory_slot *slot,
+			      unsigned long npages);
+	int (*init_vm)(struct kvm *kvm);
+	void (*destroy_vm)(struct kvm *kvm);
+	int (*check_processor_compat)(void);
+	int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
+	int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
+			  unsigned int inst, int *advance);
+	int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
+	int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
+	void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
+	long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
+			      unsigned long arg);
+
+};
+
+extern struct kvmppc_ops *kvmppc_ops;
+
 /*
  * Cuts out inst bits with ordering according to spec.
  * That means the leftmost bit is zero. All given bits are included.
@@ -210,17 +261,6 @@ static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
 	return r;
 }
 
-union kvmppc_one_reg {
-	u32	wval;
-	u64	dval;
-	vector128 vval;
-	u64	vsxval[2];
-	struct {
-		u64	addr;
-		u64	length;
-	}	vpaval;
-};
-
 #define one_reg_size(id)	\
 	(1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
 
@@ -245,10 +285,10 @@ union kvmppc_one_reg {
 	__v;					\
 })
 
-void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 
-void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 
 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
@@ -281,7 +321,10 @@ static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
 	paca[cpu].kvm_hstate.host_ipi = host_ipi;
 }
 
-extern void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu);
+static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
+{
+	kvmppc_ops->fast_vcpu_kick(vcpu);
+}
 
 #else
 static inline void __init kvm_cma_reserve(void)