arch/powerpc/kvm/e500.h - arm/linux-arm-legacy - Git at Google

 /*
  * Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
  *
  * Author: Yu Liu <yu.liu@freescale.com>
  *         Scott Wood <scottwood@freescale.com>
  *         Ashish Kalra <ashish.kalra@freescale.com>
  *         Varun Sethi <varun.sethi@freescale.com>
  *
  * Description:
  * This file is based on arch/powerpc/kvm/44x_tlb.h and
  * arch/powerpc/include/asm/kvm_44x.h by Hollis Blanchard <hollisb@us.ibm.com>,
  * Copyright IBM Corp. 2007-2008
  *
  * 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.
  */

 #ifndef KVM_E500_H
 #define KVM_E500_H

 #include <linux/kvm_host.h>
 #include <asm/mmu-book3e.h>
 #include <asm/tlb.h>

 enum vcpu_ftr {
 	VCPU_FTR_MMU_V2
 };

 #define E500_PID_NUM   3
 #define E500_TLB_NUM   2

 /* entry is mapped somewhere in host TLB */
 #define E500_TLB_VALID		(1 << 31)
 /* TLB1 entry is mapped by host TLB1, tracked by bitmaps */
 #define E500_TLB_BITMAP		(1 << 30)
 /* TLB1 entry is mapped by host TLB0 */
 #define E500_TLB_TLB0		(1 << 29)
 /* bits [6-5] MAS2_X1 and MAS2_X0 and [4-0] bits for WIMGE */
 #define E500_TLB_MAS2_ATTR	(0x7f)

 struct tlbe_ref {
 	pfn_t pfn;		/* valid only for TLB0, except briefly */
 	unsigned int flags;	/* E500_TLB_* */
 };

 struct tlbe_priv {
 	struct tlbe_ref ref;
 };

 #ifdef CONFIG_KVM_E500V2
 struct vcpu_id_table;
 #endif

 struct kvmppc_e500_tlb_params {
 	int entries, ways, sets;
 };

 struct kvmppc_vcpu_e500 {
 	struct kvm_vcpu vcpu;

 	/* Unmodified copy of the guest's TLB -- shared with host userspace. */
 	struct kvm_book3e_206_tlb_entry *gtlb_arch;

 	/* Starting entry number in gtlb_arch[] */
 	int gtlb_offset[E500_TLB_NUM];

 	/* KVM internal information associated with each guest TLB entry */
 	struct tlbe_priv *gtlb_priv[E500_TLB_NUM];

 	struct kvmppc_e500_tlb_params gtlb_params[E500_TLB_NUM];

 	unsigned int gtlb_nv[E500_TLB_NUM];

 	unsigned int host_tlb1_nv;

 	u32 svr;
 	u32 l1csr0;
 	u32 l1csr1;
 	u32 hid0;
 	u32 hid1;
 	u64 mcar;

 	struct page **shared_tlb_pages;
 	int num_shared_tlb_pages;

 	u64 *g2h_tlb1_map;
 	unsigned int *h2g_tlb1_rmap;

 	/* Minimum and maximum address mapped my TLB1 */
 	unsigned long tlb1_min_eaddr;
 	unsigned long tlb1_max_eaddr;

 #ifdef CONFIG_KVM_E500V2
 	u32 pid[E500_PID_NUM];

 	/* vcpu id table */
 	struct vcpu_id_table *idt;
 #endif
 };

 static inline struct kvmppc_vcpu_e500 *to_e500(struct kvm_vcpu *vcpu)
 {
 	return container_of(vcpu, struct kvmppc_vcpu_e500, vcpu);
 }


 /* This geometry is the legacy default -- can be overridden by userspace */
 #define KVM_E500_TLB0_WAY_SIZE		128
 #define KVM_E500_TLB0_WAY_NUM		2

 #define KVM_E500_TLB0_SIZE  (KVM_E500_TLB0_WAY_SIZE * KVM_E500_TLB0_WAY_NUM)
 #define KVM_E500_TLB1_SIZE  16

 #define index_of(tlbsel, esel)	(((tlbsel) << 16) | ((esel) & 0xFFFF))
 #define tlbsel_of(index)	((index) >> 16)
 #define esel_of(index)		((index) & 0xFFFF)

 #define E500_TLB_USER_PERM_MASK (MAS3_UX|MAS3_UR|MAS3_UW)
 #define E500_TLB_SUPER_PERM_MASK (MAS3_SX|MAS3_SR|MAS3_SW)
 #define MAS2_ATTRIB_MASK \
 	  (MAS2_X0 | MAS2_X1 | MAS2_E | MAS2_G)
 #define MAS3_ATTRIB_MASK \
 	  (MAS3_U0 | MAS3_U1 | MAS3_U2 | MAS3_U3 \
 	   | E500_TLB_USER_PERM_MASK | E500_TLB_SUPER_PERM_MASK)

 int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *vcpu_e500,
 				ulong value);
 int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu);
 int kvmppc_e500_emul_tlbre(struct kvm_vcpu *vcpu);
 int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, gva_t ea);
 int kvmppc_e500_emul_tlbilx(struct kvm_vcpu *vcpu, int type, gva_t ea);
 int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, gva_t ea);
 int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500);
 void kvmppc_e500_tlb_uninit(struct kvmppc_vcpu_e500 *vcpu_e500);

 void kvmppc_get_sregs_e500_tlb(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 int kvmppc_set_sregs_e500_tlb(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);

 int kvmppc_get_one_reg_e500_tlb(struct kvm_vcpu *vcpu, u64 id,
 				union kvmppc_one_reg *val);
 int kvmppc_set_one_reg_e500_tlb(struct kvm_vcpu *vcpu, u64 id,
 			       union kvmppc_one_reg *val);

 #ifdef CONFIG_KVM_E500V2
 unsigned int kvmppc_e500_get_sid(struct kvmppc_vcpu_e500 *vcpu_e500,
 				 unsigned int as, unsigned int gid,
 				 unsigned int pr, int avoid_recursion);
 #endif

 /* TLB helper functions */
 static inline unsigned int
 get_tlb_size(const struct kvm_book3e_206_tlb_entry *tlbe)
 {
 	return (tlbe->mas1 >> 7) & 0x1f;
 }

 static inline gva_t get_tlb_eaddr(const struct kvm_book3e_206_tlb_entry *tlbe)
 {
 	return tlbe->mas2 & MAS2_EPN;
 }

 static inline u64 get_tlb_bytes(const struct kvm_book3e_206_tlb_entry *tlbe)
 {
 	unsigned int pgsize = get_tlb_size(tlbe);
 	return 1ULL << 10 << pgsize;
 }

 static inline gva_t get_tlb_end(const struct kvm_book3e_206_tlb_entry *tlbe)
 {
 	u64 bytes = get_tlb_bytes(tlbe);
 	return get_tlb_eaddr(tlbe) + bytes - 1;
 }

 static inline u64 get_tlb_raddr(const struct kvm_book3e_206_tlb_entry *tlbe)
 {
 	return tlbe->mas7_3 & ~0xfffULL;
 }

 static inline unsigned int
 get_tlb_tid(const struct kvm_book3e_206_tlb_entry *tlbe)
 {
 	return (tlbe->mas1 >> 16) & 0xff;
 }

 static inline unsigned int
 get_tlb_ts(const struct kvm_book3e_206_tlb_entry *tlbe)
 {
 	return (tlbe->mas1 >> 12) & 0x1;
 }

 static inline unsigned int
 get_tlb_v(const struct kvm_book3e_206_tlb_entry *tlbe)
 {
 	return (tlbe->mas1 >> 31) & 0x1;
 }

 static inline unsigned int
 get_tlb_iprot(const struct kvm_book3e_206_tlb_entry *tlbe)
 {
 	return (tlbe->mas1 >> 30) & 0x1;
 }

 static inline unsigned int
 get_tlb_tsize(const struct kvm_book3e_206_tlb_entry *tlbe)
 {
 	return (tlbe->mas1 & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT;
 }

 static inline unsigned int get_cur_pid(struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.pid & 0xff;
 }

 static inline unsigned int get_cur_as(struct kvm_vcpu *vcpu)
 {
 	return !!(vcpu->arch.shared->msr & (MSR_IS | MSR_DS));
 }

 static inline unsigned int get_cur_pr(struct kvm_vcpu *vcpu)
 {
 	return !!(vcpu->arch.shared->msr & MSR_PR);
 }

 static inline unsigned int get_cur_spid(const struct kvm_vcpu *vcpu)
 {
 	return (vcpu->arch.shared->mas6 >> 16) & 0xff;
 }

 static inline unsigned int get_cur_sas(const struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.shared->mas6 & 0x1;
 }

 static inline unsigned int get_tlb_tlbsel(const struct kvm_vcpu *vcpu)
 {
 	/*
 	 * Manual says that tlbsel has 2 bits wide.
 	 * Since we only have two TLBs, only lower bit is used.
 	 */
 	return (vcpu->arch.shared->mas0 >> 28) & 0x1;
 }

 static inline unsigned int get_tlb_nv_bit(const struct kvm_vcpu *vcpu)
 {
 	return vcpu->arch.shared->mas0 & 0xfff;
 }

 static inline unsigned int get_tlb_esel_bit(const struct kvm_vcpu *vcpu)
 {
 	return (vcpu->arch.shared->mas0 >> 16) & 0xfff;
 }

 static inline int tlbe_is_host_safe(const struct kvm_vcpu *vcpu,
 			const struct kvm_book3e_206_tlb_entry *tlbe)
 {
 	gpa_t gpa;

 	if (!get_tlb_v(tlbe))
 		return 0;

 #ifndef CONFIG_KVM_BOOKE_HV
 	/* Does it match current guest AS? */
 	/* XXX what about IS != DS? */
 	if (get_tlb_ts(tlbe) != !!(vcpu->arch.shared->msr & MSR_IS))
 		return 0;
 #endif

 	gpa = get_tlb_raddr(tlbe);
 	if (!gfn_to_memslot(vcpu->kvm, gpa >> PAGE_SHIFT))
 		/* Mapping is not for RAM. */
 		return 0;

 	return 1;
 }

 static inline struct kvm_book3e_206_tlb_entry *get_entry(
 	struct kvmppc_vcpu_e500 *vcpu_e500, int tlbsel, int entry)
 {
 	int offset = vcpu_e500->gtlb_offset[tlbsel];
 	return &vcpu_e500->gtlb_arch[offset + entry];
 }

 void kvmppc_e500_tlbil_one(struct kvmppc_vcpu_e500 *vcpu_e500,
 			   struct kvm_book3e_206_tlb_entry *gtlbe);
 void kvmppc_e500_tlbil_all(struct kvmppc_vcpu_e500 *vcpu_e500);

 #ifdef CONFIG_KVM_BOOKE_HV
 #define kvmppc_e500_get_tlb_stid(vcpu, gtlbe)       get_tlb_tid(gtlbe)
 #define get_tlbmiss_tid(vcpu)           get_cur_pid(vcpu)
 #define get_tlb_sts(gtlbe)              (gtlbe->mas1 & MAS1_TS)
 #else
 unsigned int kvmppc_e500_get_tlb_stid(struct kvm_vcpu *vcpu,
 				      struct kvm_book3e_206_tlb_entry *gtlbe);

 static inline unsigned int get_tlbmiss_tid(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
 	unsigned int tidseld = (vcpu->arch.shared->mas4 >> 16) & 0xf;

 	return vcpu_e500->pid[tidseld];
 }

 /* Force TS=1 for all guest mappings. */
 #define get_tlb_sts(gtlbe)              (MAS1_TS)
 #endif /* !BOOKE_HV */

 static inline bool has_feature(const struct kvm_vcpu *vcpu,
 			       enum vcpu_ftr ftr)
 {
 	bool has_ftr;
 	switch (ftr) {
 	case VCPU_FTR_MMU_V2:
 		has_ftr = ((vcpu->arch.mmucfg & MMUCFG_MAVN) == MMUCFG_MAVN_V2);
 		break;
 	default:
 		return false;
 	}
 	return has_ftr;
 }

 #endif /* KVM_E500_H */
	/*
	* Copyright (C) 2008-2011 Freescale Semiconductor, Inc. All rights reserved.
	*
	* Author: Yu Liu <yu.liu@freescale.com>
	* Scott Wood <scottwood@freescale.com>
	* Ashish Kalra <ashish.kalra@freescale.com>
	* Varun Sethi <varun.sethi@freescale.com>
	*
	* Description:
	* This file is based on arch/powerpc/kvm/44x_tlb.h and
	* arch/powerpc/include/asm/kvm_44x.h by Hollis Blanchard <hollisb@us.ibm.com>,
	* Copyright IBM Corp. 2007-2008
	*
	* 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.
	*/

	#ifndef KVM_E500_H
	#define KVM_E500_H

	#include <linux/kvm_host.h>
	#include <asm/mmu-book3e.h>
	#include <asm/tlb.h>

	enum vcpu_ftr {
	VCPU_FTR_MMU_V2
	};

	#define E500_PID_NUM 3
	#define E500_TLB_NUM 2

	/* entry is mapped somewhere in host TLB */
	#define E500_TLB_VALID (1 << 31)
	/* TLB1 entry is mapped by host TLB1, tracked by bitmaps */
	#define E500_TLB_BITMAP (1 << 30)
	/* TLB1 entry is mapped by host TLB0 */
	#define E500_TLB_TLB0 (1 << 29)
	/* bits [6-5] MAS2_X1 and MAS2_X0 and [4-0] bits for WIMGE */
	#define E500_TLB_MAS2_ATTR (0x7f)

	struct tlbe_ref {
	pfn_t pfn; /* valid only for TLB0, except briefly */
	unsigned int flags; /* E500_TLB_* */
	};

	struct tlbe_priv {
	struct tlbe_ref ref;
	};

	#ifdef CONFIG_KVM_E500V2
	struct vcpu_id_table;
	#endif

	struct kvmppc_e500_tlb_params {
	int entries, ways, sets;
	};

	struct kvmppc_vcpu_e500 {
	struct kvm_vcpu vcpu;

	/* Unmodified copy of the guest's TLB -- shared with host userspace. */
	struct kvm_book3e_206_tlb_entry *gtlb_arch;

	/* Starting entry number in gtlb_arch[] */
	int gtlb_offset[E500_TLB_NUM];

	/* KVM internal information associated with each guest TLB entry */
	struct tlbe_priv *gtlb_priv[E500_TLB_NUM];

	struct kvmppc_e500_tlb_params gtlb_params[E500_TLB_NUM];

	unsigned int gtlb_nv[E500_TLB_NUM];

	unsigned int host_tlb1_nv;

	u32 svr;
	u32 l1csr0;
	u32 l1csr1;
	u32 hid0;
	u32 hid1;
	u64 mcar;

	struct page **shared_tlb_pages;
	int num_shared_tlb_pages;

	u64 *g2h_tlb1_map;
	unsigned int *h2g_tlb1_rmap;

	/* Minimum and maximum address mapped my TLB1 */
	unsigned long tlb1_min_eaddr;
	unsigned long tlb1_max_eaddr;

	#ifdef CONFIG_KVM_E500V2
	u32 pid[E500_PID_NUM];

	/* vcpu id table */
	struct vcpu_id_table *idt;
	#endif
	};

	static inline struct kvmppc_vcpu_e500 to_e500(struct kvm_vcpu vcpu)
	{
	return container_of(vcpu, struct kvmppc_vcpu_e500, vcpu);
	}


	/* This geometry is the legacy default -- can be overridden by userspace */
	#define KVM_E500_TLB0_WAY_SIZE 128
	#define KVM_E500_TLB0_WAY_NUM 2

	#define KVM_E500_TLB0_SIZE (KVM_E500_TLB0_WAY_SIZE * KVM_E500_TLB0_WAY_NUM)
	#define KVM_E500_TLB1_SIZE 16

	#define index_of(tlbsel, esel) (((tlbsel) << 16) \| ((esel) & 0xFFFF))
	#define tlbsel_of(index) ((index) >> 16)
	#define esel_of(index) ((index) & 0xFFFF)

	#define E500_TLB_USER_PERM_MASK (MAS3_UX\|MAS3_UR\|MAS3_UW)
	#define E500_TLB_SUPER_PERM_MASK (MAS3_SX\|MAS3_SR\|MAS3_SW)
	#define MAS2_ATTRIB_MASK \
	(MAS2_X0 \| MAS2_X1 \| MAS2_E \| MAS2_G)
	#define MAS3_ATTRIB_MASK \
	(MAS3_U0 \| MAS3_U1 \| MAS3_U2 \| MAS3_U3 \
	\| E500_TLB_USER_PERM_MASK \| E500_TLB_SUPER_PERM_MASK)

	int kvmppc_e500_emul_mt_mmucsr0(struct kvmppc_vcpu_e500 *vcpu_e500,
	ulong value);
	int kvmppc_e500_emul_tlbwe(struct kvm_vcpu *vcpu);
	int kvmppc_e500_emul_tlbre(struct kvm_vcpu *vcpu);
	int kvmppc_e500_emul_tlbivax(struct kvm_vcpu *vcpu, gva_t ea);
	int kvmppc_e500_emul_tlbilx(struct kvm_vcpu *vcpu, int type, gva_t ea);
	int kvmppc_e500_emul_tlbsx(struct kvm_vcpu *vcpu, gva_t ea);
	int kvmppc_e500_tlb_init(struct kvmppc_vcpu_e500 *vcpu_e500);
	void kvmppc_e500_tlb_uninit(struct kvmppc_vcpu_e500 *vcpu_e500);

	void kvmppc_get_sregs_e500_tlb(struct kvm_vcpu vcpu, struct kvm_sregs sregs);
	int kvmppc_set_sregs_e500_tlb(struct kvm_vcpu vcpu, struct kvm_sregs sregs);

	int kvmppc_get_one_reg_e500_tlb(struct kvm_vcpu *vcpu, u64 id,
	union kvmppc_one_reg *val);
	int kvmppc_set_one_reg_e500_tlb(struct kvm_vcpu *vcpu, u64 id,
	union kvmppc_one_reg *val);

	#ifdef CONFIG_KVM_E500V2
	unsigned int kvmppc_e500_get_sid(struct kvmppc_vcpu_e500 *vcpu_e500,
	unsigned int as, unsigned int gid,
	unsigned int pr, int avoid_recursion);
	#endif

	/* TLB helper functions */
	static inline unsigned int
	get_tlb_size(const struct kvm_book3e_206_tlb_entry *tlbe)
	{
	return (tlbe->mas1 >> 7) & 0x1f;
	}

	static inline gva_t get_tlb_eaddr(const struct kvm_book3e_206_tlb_entry *tlbe)
	{
	return tlbe->mas2 & MAS2_EPN;
	}

	static inline u64 get_tlb_bytes(const struct kvm_book3e_206_tlb_entry *tlbe)
	{
	unsigned int pgsize = get_tlb_size(tlbe);
	return 1ULL << 10 << pgsize;
	}

	static inline gva_t get_tlb_end(const struct kvm_book3e_206_tlb_entry *tlbe)
	{
	u64 bytes = get_tlb_bytes(tlbe);
	return get_tlb_eaddr(tlbe) + bytes - 1;
	}

	static inline u64 get_tlb_raddr(const struct kvm_book3e_206_tlb_entry *tlbe)
	{
	return tlbe->mas7_3 & ~0xfffULL;
	}

	static inline unsigned int
	get_tlb_tid(const struct kvm_book3e_206_tlb_entry *tlbe)
	{
	return (tlbe->mas1 >> 16) & 0xff;
	}

	static inline unsigned int
	get_tlb_ts(const struct kvm_book3e_206_tlb_entry *tlbe)
	{
	return (tlbe->mas1 >> 12) & 0x1;
	}

	static inline unsigned int
	get_tlb_v(const struct kvm_book3e_206_tlb_entry *tlbe)
	{
	return (tlbe->mas1 >> 31) & 0x1;
	}

	static inline unsigned int
	get_tlb_iprot(const struct kvm_book3e_206_tlb_entry *tlbe)
	{
	return (tlbe->mas1 >> 30) & 0x1;
	}

	static inline unsigned int
	get_tlb_tsize(const struct kvm_book3e_206_tlb_entry *tlbe)
	{
	return (tlbe->mas1 & MAS1_TSIZE_MASK) >> MAS1_TSIZE_SHIFT;
	}

	static inline unsigned int get_cur_pid(struct kvm_vcpu *vcpu)
	{
	return vcpu->arch.pid & 0xff;
	}

	static inline unsigned int get_cur_as(struct kvm_vcpu *vcpu)
	{
	return !!(vcpu->arch.shared->msr & (MSR_IS \| MSR_DS));
	}

	static inline unsigned int get_cur_pr(struct kvm_vcpu *vcpu)
	{
	return !!(vcpu->arch.shared->msr & MSR_PR);
	}

	static inline unsigned int get_cur_spid(const struct kvm_vcpu *vcpu)
	{
	return (vcpu->arch.shared->mas6 >> 16) & 0xff;
	}

	static inline unsigned int get_cur_sas(const struct kvm_vcpu *vcpu)
	{
	return vcpu->arch.shared->mas6 & 0x1;
	}

	static inline unsigned int get_tlb_tlbsel(const struct kvm_vcpu *vcpu)
	{
	/*
	* Manual says that tlbsel has 2 bits wide.
	* Since we only have two TLBs, only lower bit is used.
	*/
	return (vcpu->arch.shared->mas0 >> 28) & 0x1;
	}

	static inline unsigned int get_tlb_nv_bit(const struct kvm_vcpu *vcpu)
	{
	return vcpu->arch.shared->mas0 & 0xfff;
	}

	static inline unsigned int get_tlb_esel_bit(const struct kvm_vcpu *vcpu)
	{
	return (vcpu->arch.shared->mas0 >> 16) & 0xfff;
	}

	static inline int tlbe_is_host_safe(const struct kvm_vcpu *vcpu,
	const struct kvm_book3e_206_tlb_entry *tlbe)
	{
	gpa_t gpa;

	if (!get_tlb_v(tlbe))
	return 0;

	#ifndef CONFIG_KVM_BOOKE_HV
	/* Does it match current guest AS? */
	/* XXX what about IS != DS? */
	if (get_tlb_ts(tlbe) != !!(vcpu->arch.shared->msr & MSR_IS))
	return 0;
	#endif

	gpa = get_tlb_raddr(tlbe);
	if (!gfn_to_memslot(vcpu->kvm, gpa >> PAGE_SHIFT))
	/* Mapping is not for RAM. */
	return 0;

	return 1;
	}

	static inline struct kvm_book3e_206_tlb_entry *get_entry(
	struct kvmppc_vcpu_e500 *vcpu_e500, int tlbsel, int entry)
	{
	int offset = vcpu_e500->gtlb_offset[tlbsel];
	return &vcpu_e500->gtlb_arch[offset + entry];
	}

	void kvmppc_e500_tlbil_one(struct kvmppc_vcpu_e500 *vcpu_e500,
	struct kvm_book3e_206_tlb_entry *gtlbe);
	void kvmppc_e500_tlbil_all(struct kvmppc_vcpu_e500 *vcpu_e500);

	#ifdef CONFIG_KVM_BOOKE_HV
	#define kvmppc_e500_get_tlb_stid(vcpu, gtlbe) get_tlb_tid(gtlbe)
	#define get_tlbmiss_tid(vcpu) get_cur_pid(vcpu)
	#define get_tlb_sts(gtlbe) (gtlbe->mas1 & MAS1_TS)
	#else
	unsigned int kvmppc_e500_get_tlb_stid(struct kvm_vcpu *vcpu,
	struct kvm_book3e_206_tlb_entry *gtlbe);

	static inline unsigned int get_tlbmiss_tid(struct kvm_vcpu *vcpu)
	{
	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
	unsigned int tidseld = (vcpu->arch.shared->mas4 >> 16) & 0xf;

	return vcpu_e500->pid[tidseld];
	}

	/* Force TS=1 for all guest mappings. */
	#define get_tlb_sts(gtlbe) (MAS1_TS)
	#endif /* !BOOKE_HV */

	static inline bool has_feature(const struct kvm_vcpu *vcpu,
	enum vcpu_ftr ftr)
	{
	bool has_ftr;
	switch (ftr) {
	case VCPU_FTR_MMU_V2:
	has_ftr = ((vcpu->arch.mmucfg & MMUCFG_MAVN) == MMUCFG_MAVN_V2);
	break;
	default:
	return false;
	}
	return has_ftr;
	}

	#endif /* KVM_E500_H */