arch/powerpc/include/asm/kvm_book3s.h - maze/linux - Git at Google

 /*
  * 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_H__
 #define __ASM_KVM_BOOK3S_H__

 #include <linux/types.h>
 #include <linux/kvm_host.h>
 #include <asm/kvm_book3s_asm.h>

 struct kvmppc_bat {
 	u64 raw;
 	u32 bepi;
 	u32 bepi_mask;
 	u32 brpn;
 	u8 wimg;
 	u8 pp;
 	bool vs		: 1;
 	bool vp		: 1;
 };

 struct kvmppc_sid_map {
 	u64 guest_vsid;
 	u64 guest_esid;
 	u64 host_vsid;
 	bool valid	: 1;
 };

 #define SID_MAP_BITS    9
 #define SID_MAP_NUM     (1 << SID_MAP_BITS)
 #define SID_MAP_MASK    (SID_MAP_NUM - 1)

 #ifdef CONFIG_PPC_BOOK3S_64
 #define SID_CONTEXTS	1
 #else
 #define SID_CONTEXTS	128
 #define VSID_POOL_SIZE	(SID_CONTEXTS * 16)
 #endif

 struct hpte_cache {
 	struct hlist_node list_pte;
 	struct hlist_node list_pte_long;
 	struct hlist_node list_vpte;
 	struct hlist_node list_vpte_long;
 	struct rcu_head rcu_head;
 	u64 host_vpn;
 	u64 pfn;
 	ulong slot;
 	struct kvmppc_pte pte;
 };

 struct kvmppc_vcpu_book3s {
 	struct kvm_vcpu vcpu;
 	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 	struct kvmppc_sid_map sid_map[SID_MAP_NUM];
 	struct {
 		u64 esid;
 		u64 vsid;
 	} slb_shadow[64];
 	u8 slb_shadow_max;
 	struct kvmppc_bat ibat[8];
 	struct kvmppc_bat dbat[8];
 	u64 hid[6];
 	u64 gqr[8];
 	u64 sdr1;
 	u64 hior;
 	u64 msr_mask;
 	u64 purr_offset;
 	u64 spurr_offset;
 #ifdef CONFIG_PPC_BOOK3S_32
 	u32 vsid_pool[VSID_POOL_SIZE];
 	u32 vsid_next;
 #else
 	u64 proto_vsid_first;
 	u64 proto_vsid_max;
 	u64 proto_vsid_next;
 #endif
 	int context_id[SID_CONTEXTS];

 	bool hior_explicit;		/* HIOR is set by ioctl, not PVR */

 	struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
 	struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
 	struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
 	struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
 	int hpte_cache_count;
 	spinlock_t mmu_lock;
 };

 #define CONTEXT_HOST		0
 #define CONTEXT_GUEST		1
 #define CONTEXT_GUEST_END	2

 #define VSID_REAL	0x0fffffffffc00000ULL
 #define VSID_BAT	0x0fffffffffb00000ULL
 #define VSID_1T		0x1000000000000000ULL
 #define VSID_REAL_DR	0x2000000000000000ULL
 #define VSID_REAL_IR	0x4000000000000000ULL
 #define VSID_PR		0x8000000000000000ULL

 extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
 extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
 extern void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr);
 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
 extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
 extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
 extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
 extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
 			struct kvm_vcpu *vcpu, unsigned long addr,
 			unsigned long status);
 extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
 			unsigned long slb_v, unsigned long valid);

 extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
 extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
 extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
 extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
 extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
 extern int kvmppc_mmu_hpte_sysinit(void);
 extern void kvmppc_mmu_hpte_sysexit(void);
 extern int kvmppc_mmu_hv_init(void);

 extern int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
 extern int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr, bool data);
 extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
 extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
 					  unsigned int vec);
 extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
 extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
 			   bool upper, u32 val);
 extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
 extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
 extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn);
 extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
 			unsigned long *rmap, long pte_index, int realmode);
 extern void kvmppc_invalidate_hpte(struct kvm *kvm, unsigned long *hptep,
 			unsigned long pte_index);
 void kvmppc_clear_ref_hpte(struct kvm *kvm, unsigned long *hptep,
 			unsigned long pte_index);
 extern void *kvmppc_pin_guest_page(struct kvm *kvm, unsigned long addr,
 			unsigned long *nb_ret);
 extern void kvmppc_unpin_guest_page(struct kvm *kvm, void *addr,
 			unsigned long gpa, bool dirty);
 extern long kvmppc_virtmode_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
 			long pte_index, unsigned long pteh, unsigned long ptel);
 extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
 			long pte_index, unsigned long pteh, unsigned long ptel,
 			pgd_t *pgdir, bool realmode, unsigned long *idx_ret);
 extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
 			unsigned long pte_index, unsigned long avpn,
 			unsigned long *hpret);
 extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
 			struct kvm_memory_slot *memslot, unsigned long *map);

 extern void kvmppc_entry_trampoline(void);
 extern void kvmppc_hv_entry_trampoline(void);
 extern void kvmppc_load_up_fpu(void);
 extern void kvmppc_load_up_altivec(void);
 extern void kvmppc_load_up_vsx(void);
 extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
 extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
 extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);

 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
 {
 	return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu);
 }

 extern void kvm_return_point(void);

 /* Also add subarch specific defines */

 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
 #include <asm/kvm_book3s_32.h>
 #endif
 #ifdef CONFIG_KVM_BOOK3S_64_HANDLER
 #include <asm/kvm_book3s_64.h>
 #endif

 #ifdef CONFIG_KVM_BOOK3S_PR

 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
 {
 	return to_book3s(vcpu)->hior;
 }

 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
 			unsigned long pending_now, unsigned long old_pending)
 {
 	if (pending_now)
 		vcpu->arch.shared->int_pending = 1;
 	else if (old_pending)
 		vcpu->arch.shared->int_pending = 0;
 }

 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
 {
 	if ( num < 14 ) {
 		struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 		svcpu->gpr[num] = val;
 		svcpu_put(svcpu);
 		to_book3s(vcpu)->shadow_vcpu->gpr[num] = val;
 	} else
 		vcpu->arch.gpr[num] = val;
 }

 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
 {
 	if ( num < 14 ) {
 		struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 		ulong r = svcpu->gpr[num];
 		svcpu_put(svcpu);
 		return r;
 	} else
 		return vcpu->arch.gpr[num];
 }

 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
 {
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	svcpu->cr = val;
 	svcpu_put(svcpu);
 	to_book3s(vcpu)->shadow_vcpu->cr = val;
 }

 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	u32 r;
 	r = svcpu->cr;
 	svcpu_put(svcpu);
 	return r;
 }

 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
 {
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	svcpu->xer = val;
 	to_book3s(vcpu)->shadow_vcpu->xer = val;
 	svcpu_put(svcpu);
 }

 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	u32 r;
 	r = svcpu->xer;
 	svcpu_put(svcpu);
 	return r;
 }

 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
 {
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	svcpu->ctr = val;
 	svcpu_put(svcpu);
 }

 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	ulong r;
 	r = svcpu->ctr;
 	svcpu_put(svcpu);
 	return r;
 }

 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
 {
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	svcpu->lr = val;
 	svcpu_put(svcpu);
 }

 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	ulong r;
 	r = svcpu->lr;
 	svcpu_put(svcpu);
 	return r;
 }

 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
 {
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	svcpu->pc = val;
 	svcpu_put(svcpu);
 }

 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	ulong r;
 	r = svcpu->pc;
 	svcpu_put(svcpu);
 	return r;
 }

 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
 {
 	ulong pc = kvmppc_get_pc(vcpu);
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	u32 r;

 	/* Load the instruction manually if it failed to do so in the
 	 * exit path */
 	if (svcpu->last_inst == KVM_INST_FETCH_FAILED)
 		kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false);

 	r = svcpu->last_inst;
 	svcpu_put(svcpu);
 	return r;
 }

 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	ulong r;
 	r = svcpu->fault_dar;
 	svcpu_put(svcpu);
 	return r;
 }

 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
 {
 	ulong crit_raw = vcpu->arch.shared->critical;
 	ulong crit_r1 = kvmppc_get_gpr(vcpu, 1);
 	bool crit;

 	/* Truncate crit indicators in 32 bit mode */
 	if (!(vcpu->arch.shared->msr & MSR_SF)) {
 		crit_raw &= 0xffffffff;
 		crit_r1 &= 0xffffffff;
 	}

 	/* Critical section when crit == r1 */
 	crit = (crit_raw == crit_r1);
 	/* ... and we're in supervisor mode */
 	crit = crit && !(vcpu->arch.shared->msr & MSR_PR);

 	return crit;
 }
 #else /* CONFIG_KVM_BOOK3S_PR */

 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
 {
 	return 0;
 }

 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
 			unsigned long pending_now, unsigned long old_pending)
 {
 }

 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
 {
 	vcpu->arch.gpr[num] = val;
 }

 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
 {
 	return vcpu->arch.gpr[num];
 }

 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
 {
 	vcpu->arch.cr = val;
 }

 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.cr;
 }

 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
 {
 	vcpu->arch.xer = val;
 }

 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.xer;
 }

 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
 {
 	vcpu->arch.ctr = val;
 }

 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.ctr;
 }

 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
 {
 	vcpu->arch.lr = val;
 }

 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.lr;
 }

 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
 {
 	vcpu->arch.pc = val;
 }

 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.pc;
 }

 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
 {
 	ulong pc = kvmppc_get_pc(vcpu);

 	/* Load the instruction manually if it failed to do so in the
 	 * exit path */
 	if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
 		kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);

 	return vcpu->arch.last_inst;
 }

 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.fault_dar;
 }

 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
 {
 	return false;
 }
 #endif

 /* Magic register values loaded into r3 and r4 before the 'sc' assembly
  * instruction for the OSI hypercalls */
 #define OSI_SC_MAGIC_R3			0x113724FA
 #define OSI_SC_MAGIC_R4			0x77810F9B

 #define INS_DCBZ			0x7c0007ec
 /* TO = 31 for unconditional trap */
 #define INS_TW				0x7fe00008

 /* LPIDs we support with this build -- runtime limit may be lower */
 #define KVMPPC_NR_LPIDS			(LPID_RSVD + 1)

 #endif /* __ASM_KVM_BOOK3S_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_H__
	#define __ASM_KVM_BOOK3S_H__

	#include <linux/types.h>
	#include <linux/kvm_host.h>
	#include <asm/kvm_book3s_asm.h>

	struct kvmppc_bat {
	u64 raw;
	u32 bepi;
	u32 bepi_mask;
	u32 brpn;
	u8 wimg;
	u8 pp;
	bool vs : 1;
	bool vp : 1;
	};

	struct kvmppc_sid_map {
	u64 guest_vsid;
	u64 guest_esid;
	u64 host_vsid;
	bool valid : 1;
	};

	#define SID_MAP_BITS 9
	#define SID_MAP_NUM (1 << SID_MAP_BITS)
	#define SID_MAP_MASK (SID_MAP_NUM - 1)

	#ifdef CONFIG_PPC_BOOK3S_64
	#define SID_CONTEXTS 1
	#else
	#define SID_CONTEXTS 128
	#define VSID_POOL_SIZE (SID_CONTEXTS * 16)
	#endif

	struct hpte_cache {
	struct hlist_node list_pte;
	struct hlist_node list_pte_long;
	struct hlist_node list_vpte;
	struct hlist_node list_vpte_long;
	struct rcu_head rcu_head;
	u64 host_vpn;
	u64 pfn;
	ulong slot;
	struct kvmppc_pte pte;
	};

	struct kvmppc_vcpu_book3s {
	struct kvm_vcpu vcpu;
	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
	struct kvmppc_sid_map sid_map[SID_MAP_NUM];
	struct {
	u64 esid;
	u64 vsid;
	} slb_shadow[64];
	u8 slb_shadow_max;
	struct kvmppc_bat ibat[8];
	struct kvmppc_bat dbat[8];
	u64 hid[6];
	u64 gqr[8];
	u64 sdr1;
	u64 hior;
	u64 msr_mask;
	u64 purr_offset;
	u64 spurr_offset;
	#ifdef CONFIG_PPC_BOOK3S_32
	u32 vsid_pool[VSID_POOL_SIZE];
	u32 vsid_next;
	#else
	u64 proto_vsid_first;
	u64 proto_vsid_max;
	u64 proto_vsid_next;
	#endif
	int context_id[SID_CONTEXTS];

	bool hior_explicit; /* HIOR is set by ioctl, not PVR */

	struct hlist_head hpte_hash_pte[HPTEG_HASH_NUM_PTE];
	struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
	struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
	struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
	int hpte_cache_count;
	spinlock_t mmu_lock;
	};

	#define CONTEXT_HOST 0
	#define CONTEXT_GUEST 1
	#define CONTEXT_GUEST_END 2

	#define VSID_REAL 0x0fffffffffc00000ULL
	#define VSID_BAT 0x0fffffffffb00000ULL
	#define VSID_1T 0x1000000000000000ULL
	#define VSID_REAL_DR 0x2000000000000000ULL
	#define VSID_REAL_IR 0x4000000000000000ULL
	#define VSID_PR 0x8000000000000000ULL

	extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask);
	extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
	extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
	extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
	extern void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr);
	extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
	extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
	extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
	extern int kvmppc_mmu_map_page(struct kvm_vcpu vcpu, struct kvmppc_pte pte);
	extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
	extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
	extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
	extern int kvmppc_book3s_hv_page_fault(struct kvm_run *run,
	struct kvm_vcpu *vcpu, unsigned long addr,
	unsigned long status);
	extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
	unsigned long slb_v, unsigned long valid);

	extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu vcpu, struct hpte_cache pte);
	extern struct hpte_cache kvmppc_mmu_hpte_cache_next(struct kvm_vcpu vcpu);
	extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
	extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
	extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu vcpu, struct hpte_cache pte);
	extern int kvmppc_mmu_hpte_sysinit(void);
	extern void kvmppc_mmu_hpte_sysexit(void);
	extern int kvmppc_mmu_hv_init(void);

	extern int kvmppc_ld(struct kvm_vcpu vcpu, ulong eaddr, int size, void *ptr, bool data);
	extern int kvmppc_st(struct kvm_vcpu vcpu, ulong eaddr, int size, void *ptr, bool data);
	extern void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec);
	extern void kvmppc_book3s_dequeue_irqprio(struct kvm_vcpu *vcpu,
	unsigned int vec);
	extern void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags);
	extern void kvmppc_set_bat(struct kvm_vcpu vcpu, struct kvmppc_bat bat,
	bool upper, u32 val);
	extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
	extern int kvmppc_emulate_paired_single(struct kvm_run run, struct kvm_vcpu vcpu);
	extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn);
	extern void kvmppc_add_revmap_chain(struct kvm kvm, struct revmap_entry rev,
	unsigned long *rmap, long pte_index, int realmode);
	extern void kvmppc_invalidate_hpte(struct kvm kvm, unsigned long hptep,
	unsigned long pte_index);
	void kvmppc_clear_ref_hpte(struct kvm kvm, unsigned long hptep,
	unsigned long pte_index);
	extern void kvmppc_pin_guest_page(struct kvm kvm, unsigned long addr,
	unsigned long *nb_ret);
	extern void kvmppc_unpin_guest_page(struct kvm kvm, void addr,
	unsigned long gpa, bool dirty);
	extern long kvmppc_virtmode_h_enter(struct kvm_vcpu *vcpu, unsigned long flags,
	long pte_index, unsigned long pteh, unsigned long ptel);
	extern long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags,
	long pte_index, unsigned long pteh, unsigned long ptel,
	pgd_t pgdir, bool realmode, unsigned long idx_ret);
	extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
	unsigned long pte_index, unsigned long avpn,
	unsigned long *hpret);
	extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
	struct kvm_memory_slot memslot, unsigned long map);

	extern void kvmppc_entry_trampoline(void);
	extern void kvmppc_hv_entry_trampoline(void);
	extern void kvmppc_load_up_fpu(void);
	extern void kvmppc_load_up_altivec(void);
	extern void kvmppc_load_up_vsx(void);
	extern u32 kvmppc_alignment_dsisr(struct kvm_vcpu *vcpu, unsigned int inst);
	extern ulong kvmppc_alignment_dar(struct kvm_vcpu *vcpu, unsigned int inst);
	extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);

	static inline struct kvmppc_vcpu_book3s to_book3s(struct kvm_vcpu vcpu)
	{
	return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu);
	}

	extern void kvm_return_point(void);

	/* Also add subarch specific defines */

	#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
	#include <asm/kvm_book3s_32.h>
	#endif
	#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
	#include <asm/kvm_book3s_64.h>
	#endif

	#ifdef CONFIG_KVM_BOOK3S_PR

	static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
	{
	return to_book3s(vcpu)->hior;
	}

	static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
	unsigned long pending_now, unsigned long old_pending)
	{
	if (pending_now)
	vcpu->arch.shared->int_pending = 1;
	else if (old_pending)
	vcpu->arch.shared->int_pending = 0;
	}

	static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
	{
	if ( num < 14 ) {
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	svcpu->gpr[num] = val;
	svcpu_put(svcpu);
	to_book3s(vcpu)->shadow_vcpu->gpr[num] = val;
	} else
	vcpu->arch.gpr[num] = val;
	}

	static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
	{
	if ( num < 14 ) {
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	ulong r = svcpu->gpr[num];
	svcpu_put(svcpu);
	return r;
	} else
	return vcpu->arch.gpr[num];
	}

	static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
	{
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	svcpu->cr = val;
	svcpu_put(svcpu);
	to_book3s(vcpu)->shadow_vcpu->cr = val;
	}

	static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
	{
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	u32 r;
	r = svcpu->cr;
	svcpu_put(svcpu);
	return r;
	}

	static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
	{
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	svcpu->xer = val;
	to_book3s(vcpu)->shadow_vcpu->xer = val;
	svcpu_put(svcpu);
	}

	static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
	{
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	u32 r;
	r = svcpu->xer;
	svcpu_put(svcpu);
	return r;
	}

	static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
	{
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	svcpu->ctr = val;
	svcpu_put(svcpu);
	}

	static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
	{
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	ulong r;
	r = svcpu->ctr;
	svcpu_put(svcpu);
	return r;
	}

	static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
	{
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	svcpu->lr = val;
	svcpu_put(svcpu);
	}

	static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
	{
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	ulong r;
	r = svcpu->lr;
	svcpu_put(svcpu);
	return r;
	}

	static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
	{
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	svcpu->pc = val;
	svcpu_put(svcpu);
	}

	static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
	{
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	ulong r;
	r = svcpu->pc;
	svcpu_put(svcpu);
	return r;
	}

	static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
	{
	ulong pc = kvmppc_get_pc(vcpu);
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	u32 r;

	/* Load the instruction manually if it failed to do so in the
	* exit path */
	if (svcpu->last_inst == KVM_INST_FETCH_FAILED)
	kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false);

	r = svcpu->last_inst;
	svcpu_put(svcpu);
	return r;
	}

	static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
	{
	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
	ulong r;
	r = svcpu->fault_dar;
	svcpu_put(svcpu);
	return r;
	}

	static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
	{
	ulong crit_raw = vcpu->arch.shared->critical;
	ulong crit_r1 = kvmppc_get_gpr(vcpu, 1);
	bool crit;

	/* Truncate crit indicators in 32 bit mode */
	if (!(vcpu->arch.shared->msr & MSR_SF)) {
	crit_raw &= 0xffffffff;
	crit_r1 &= 0xffffffff;
	}

	/* Critical section when crit == r1 */
	crit = (crit_raw == crit_r1);
	/* ... and we're in supervisor mode */
	crit = crit && !(vcpu->arch.shared->msr & MSR_PR);

	return crit;
	}
	#else /* CONFIG_KVM_BOOK3S_PR */

	static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
	{
	return 0;
	}

	static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
	unsigned long pending_now, unsigned long old_pending)
	{
	}

	static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
	{
	vcpu->arch.gpr[num] = val;
	}

	static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
	{
	return vcpu->arch.gpr[num];
	}

	static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
	{
	vcpu->arch.cr = val;
	}

	static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
	{
	return vcpu->arch.cr;
	}

	static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
	{
	vcpu->arch.xer = val;
	}

	static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
	{
	return vcpu->arch.xer;
	}

	static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
	{
	vcpu->arch.ctr = val;
	}

	static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
	{
	return vcpu->arch.ctr;
	}

	static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
	{
	vcpu->arch.lr = val;
	}

	static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
	{
	return vcpu->arch.lr;
	}

	static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
	{
	vcpu->arch.pc = val;
	}

	static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
	{
	return vcpu->arch.pc;
	}

	static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
	{
	ulong pc = kvmppc_get_pc(vcpu);

	/* Load the instruction manually if it failed to do so in the
	* exit path */
	if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
	kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);

	return vcpu->arch.last_inst;
	}

	static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
	{
	return vcpu->arch.fault_dar;
	}

	static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
	{
	return false;
	}
	#endif

	/* Magic register values loaded into r3 and r4 before the 'sc' assembly
	* instruction for the OSI hypercalls */
	#define OSI_SC_MAGIC_R3 0x113724FA
	#define OSI_SC_MAGIC_R4 0x77810F9B

	#define INS_DCBZ 0x7c0007ec
	/* TO = 31 for unconditional trap */
	#define INS_TW 0x7fe00008

	/* LPIDs we support with this build -- runtime limit may be lower */
	#define KVMPPC_NR_LPIDS (LPID_RSVD + 1)

	#endif /* __ASM_KVM_BOOK3S_H__ */