arch/powerpc/include/asm/kvm_host.h - third_party/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 IBM Corp. 2007

            
             *

            
             * Authors: Hollis Blanchard <hollisb@us.ibm.com>

            
             */


            #ifndef __POWERPC_KVM_HOST_H__

            
            #define __POWERPC_KVM_HOST_H__


            #include <linux/mutex.h>

            
            #include <linux/hrtimer.h>

            
            #include <linux/interrupt.h>

            
            #include <linux/types.h>

            
            #include <linux/kvm_types.h>

            
            #include <linux/threads.h>

            
            #include <linux/spinlock.h>

            
            #include <linux/kvm_para.h>

            
            #include <linux/list.h>

            
            #include <linux/atomic.h>

            
            #include <asm/kvm_asm.h>

            
            #include <asm/processor.h>

            
            #include <asm/page.h>

            
            #include <asm/cacheflush.h>

            
            #include <asm/hvcall.h>

            
            #include <asm/mce.h>


            #define KVM_MAX_VCPUS		NR_CPUS

            
            #define KVM_MAX_VCORES		NR_CPUS

            
            #define KVM_USER_MEM_SLOTS	512


            #include <asm/cputhreads.h>

            
            #define KVM_MAX_VCPU_ID                (threads_per_subcore * KVM_MAX_VCORES)


            #define __KVM_HAVE_ARCH_INTC_INITIALIZED


            #define KVM_HALT_POLL_NS_DEFAULT 10000	/* 10 us */


            /* These values are internal and can be increased later */

            
            #define KVM_NR_IRQCHIPS          1

            
            #define KVM_IRQCHIP_NUM_PINS     256


            /* PPC-specific vcpu->requests bit members */

            
            #define KVM_REQ_WATCHDOG	KVM_ARCH_REQ(0)

            
            #define KVM_REQ_EPR_EXIT	KVM_ARCH_REQ(1)


            #include <linux/mmu_notifier.h>


            #define KVM_ARCH_WANT_MMU_NOTIFIER


            extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);

            
            extern int kvm_unmap_hva_range(struct kvm *kvm,

            
            			       unsigned long start, unsigned long end);

            
            extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);

            
            extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);

            
            extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);


            #define HPTEG_CACHE_NUM			(1 << 15)

            
            #define HPTEG_HASH_BITS_PTE		13

            
            #define HPTEG_HASH_BITS_PTE_LONG	12

            
            #define HPTEG_HASH_BITS_VPTE		13

            
            #define HPTEG_HASH_BITS_VPTE_LONG	5

            
            #define HPTEG_HASH_BITS_VPTE_64K	11

            
            #define HPTEG_HASH_NUM_PTE		(1 << HPTEG_HASH_BITS_PTE)

            
            #define HPTEG_HASH_NUM_PTE_LONG		(1 << HPTEG_HASH_BITS_PTE_LONG)

            
            #define HPTEG_HASH_NUM_VPTE		(1 << HPTEG_HASH_BITS_VPTE)

            
            #define HPTEG_HASH_NUM_VPTE_LONG	(1 << HPTEG_HASH_BITS_VPTE_LONG)

            
            #define HPTEG_HASH_NUM_VPTE_64K		(1 << HPTEG_HASH_BITS_VPTE_64K)


            /* Physical Address Mask - allowed range of real mode RAM access */

            
            #define KVM_PAM			0x0fffffffffffffffULL


            struct lppaca;

            
            struct slb_shadow;

            
            struct dtl_entry;


            struct kvmppc_vcpu_book3s;

            
            struct kvmppc_book3s_shadow_vcpu;


            struct kvm_vm_stat {

            
            	ulong remote_tlb_flush;

            
            };


            struct kvm_vcpu_stat {

            
            	u64 sum_exits;

            
            	u64 mmio_exits;

            
            	u64 signal_exits;

            
            	u64 light_exits;

            
            	/* Account for special types of light exits: */

            
            	u64 itlb_real_miss_exits;

            
            	u64 itlb_virt_miss_exits;

            
            	u64 dtlb_real_miss_exits;

            
            	u64 dtlb_virt_miss_exits;

            
            	u64 syscall_exits;

            
            	u64 isi_exits;

            
            	u64 dsi_exits;

            
            	u64 emulated_inst_exits;

            
            	u64 dec_exits;

            
            	u64 ext_intr_exits;

            
            	u64 halt_poll_success_ns;

            
            	u64 halt_poll_fail_ns;

            
            	u64 halt_wait_ns;

            
            	u64 halt_successful_poll;

            
            	u64 halt_attempted_poll;

            
            	u64 halt_successful_wait;

            
            	u64 halt_poll_invalid;

            
            	u64 halt_wakeup;

            
            	u64 dbell_exits;

            
            	u64 gdbell_exits;

            
            	u64 ld;

            
            	u64 st;

            
            #ifdef CONFIG_PPC_BOOK3S

            
            	u64 pf_storage;

            
            	u64 pf_instruc;

            
            	u64 sp_storage;

            
            	u64 sp_instruc;

            
            	u64 queue_intr;

            
            	u64 ld_slow;

            
            	u64 st_slow;

            
            #endif

            
            	u64 pthru_all;

            
            	u64 pthru_host;

            
            	u64 pthru_bad_aff;

            
            };


            enum kvm_exit_types {

            
            	MMIO_EXITS,

            
            	SIGNAL_EXITS,

            
            	ITLB_REAL_MISS_EXITS,

            
            	ITLB_VIRT_MISS_EXITS,

            
            	DTLB_REAL_MISS_EXITS,

            
            	DTLB_VIRT_MISS_EXITS,

            
            	SYSCALL_EXITS,

            
            	ISI_EXITS,

            
            	DSI_EXITS,

            
            	EMULATED_INST_EXITS,

            
            	EMULATED_MTMSRWE_EXITS,

            
            	EMULATED_WRTEE_EXITS,

            
            	EMULATED_MTSPR_EXITS,

            
            	EMULATED_MFSPR_EXITS,

            
            	EMULATED_MTMSR_EXITS,

            
            	EMULATED_MFMSR_EXITS,

            
            	EMULATED_TLBSX_EXITS,

            
            	EMULATED_TLBWE_EXITS,

            
            	EMULATED_RFI_EXITS,

            
            	EMULATED_RFCI_EXITS,

            
            	EMULATED_RFDI_EXITS,

            
            	DEC_EXITS,

            
            	EXT_INTR_EXITS,

            
            	HALT_WAKEUP,

            
            	USR_PR_INST,

            
            	FP_UNAVAIL,

            
            	DEBUG_EXITS,

            
            	TIMEINGUEST,

            
            	DBELL_EXITS,

            
            	GDBELL_EXITS,

            
            	__NUMBER_OF_KVM_EXIT_TYPES

            
            };


            /* allow access to big endian 32bit upper/lower parts and 64bit var */

            
            struct kvmppc_exit_timing {

            
            	union {

            
            		u64 tv64;

            
            		struct {

            
            			u32 tbu, tbl;

            
            		} tv32;

            
            	};

            
            };


            struct kvmppc_pginfo {

            
            	unsigned long pfn;

            
            	atomic_t refcnt;

            
            };


            struct kvmppc_spapr_tce_iommu_table {

            
            	struct rcu_head rcu;

            
            	struct list_head next;

            
            	struct iommu_table *tbl;

            
            	struct kref kref;

            
            };


            struct kvmppc_spapr_tce_table {

            
            	struct list_head list;

            
            	struct kvm *kvm;

            
            	u64 liobn;

            
            	struct rcu_head rcu;

            
            	u32 page_shift;

            
            	u64 offset;		/* in pages */

            
            	u64 size;		/* window size in pages */

            
            	struct list_head iommu_tables;

            
            	struct page *pages[0];

            
            };


            /* XICS components, defined in book3s_xics.c */

            
            struct kvmppc_xics;

            
            struct kvmppc_icp;

            
            extern struct kvm_device_ops kvm_xics_ops;


            /* XIVE components, defined in book3s_xive.c */

            
            struct kvmppc_xive;

            
            struct kvmppc_xive_vcpu;

            
            extern struct kvm_device_ops kvm_xive_ops;


            struct kvmppc_passthru_irqmap;


            /*

            
             * The reverse mapping array has one entry for each HPTE,

            
             * which stores the guest's view of the second word of the HPTE

            
             * (including the guest physical address of the mapping),

            
             * plus forward and backward pointers in a doubly-linked ring

            
             * of HPTEs that map the same host page.  The pointers in this

            
             * ring are 32-bit HPTE indexes, to save space.

            
             */

            
            struct revmap_entry {

            
            	unsigned long guest_rpte;

            
            	unsigned int forw, back;

            
            };


            /*

            
             * We use the top bit of each memslot->arch.rmap entry as a lock bit,

            
             * and bit 32 as a present flag.  The bottom 32 bits are the

            
             * index in the guest HPT of a HPTE that points to the page.

            
             */

            
            #define KVMPPC_RMAP_LOCK_BIT	63

            
            #define KVMPPC_RMAP_RC_SHIFT	32

            
            #define KVMPPC_RMAP_CHG_SHIFT	48

            
            #define KVMPPC_RMAP_REFERENCED	(HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)

            
            #define KVMPPC_RMAP_CHANGED	(HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)

            
            #define KVMPPC_RMAP_CHG_ORDER	(0x3ful << KVMPPC_RMAP_CHG_SHIFT)

            
            #define KVMPPC_RMAP_PRESENT	0x100000000ul

            
            #define KVMPPC_RMAP_INDEX	0xfffffffful


            struct kvm_arch_memory_slot {

            
            #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE

            
            	unsigned long *rmap;

            
            #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */

            
            };


            struct kvm_hpt_info {

            
            	/* Host virtual (linear mapping) address of guest HPT */

            
            	unsigned long virt;

            
            	/* Array of reverse mapping entries for each guest HPTE */

            
            	struct revmap_entry *rev;

            
            	/* Guest HPT size is 2**(order) bytes */

            
            	u32 order;

            
            	/* 1 if HPT allocated with CMA, 0 otherwise */

            
            	int cma;

            
            };


            struct kvm_resize_hpt;


            struct kvm_arch {

            
            	unsigned int lpid;

            
            	unsigned int smt_mode;		/* # vcpus per virtual core */

            
            	unsigned int emul_smt_mode;	/* emualted SMT mode, on P9 */

            
            #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE

            
            	unsigned int tlb_sets;

            
            	struct kvm_hpt_info hpt;

            
            	atomic64_t mmio_update;

            
            	unsigned int host_lpid;

            
            	unsigned long host_lpcr;

            
            	unsigned long sdr1;

            
            	unsigned long host_sdr1;

            
            	int tlbie_lock;

            
            	unsigned long lpcr;

            
            	unsigned long vrma_slb_v;

            
            	int hpte_setup_done;

            
            	atomic_t vcpus_running;

            
            	u32 online_vcores;

            
            	atomic_t hpte_mod_interest;

            
            	cpumask_t need_tlb_flush;

            
            	cpumask_t cpu_in_guest;

            
            	u8 radix;

            
            	u8 fwnmi_enabled;

            
            	pgd_t *pgtable;

            
            	u64 process_table;

            
            	struct dentry *debugfs_dir;

            
            	struct dentry *htab_dentry;

            
            	struct kvm_resize_hpt *resize_hpt; /* protected by kvm->lock */

            
            #endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */

            
            #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE

            
            	struct mutex hpt_mutex;

            
            #endif

            
            #ifdef CONFIG_PPC_BOOK3S_64

            
            	struct list_head spapr_tce_tables;

            
            	struct list_head rtas_tokens;

            
            	DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);

            
            #endif

            
            #ifdef CONFIG_KVM_MPIC

            
            	struct openpic *mpic;

            
            #endif

            
            #ifdef CONFIG_KVM_XICS

            
            	struct kvmppc_xics *xics;

            
            	struct kvmppc_xive *xive;

            
            	struct kvmppc_passthru_irqmap *pimap;

            
            #endif

            
            	struct kvmppc_ops *kvm_ops;

            
            #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE

            
            	/* This array can grow quite large, keep it at the end */

            
            	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];

            
            #endif

            
            };


            #define VCORE_ENTRY_MAP(vc)	((vc)->entry_exit_map & 0xff)

            
            #define VCORE_EXIT_MAP(vc)	((vc)->entry_exit_map >> 8)

            
            #define VCORE_IS_EXITING(vc)	(VCORE_EXIT_MAP(vc) != 0)


            /* This bit is used when a vcore exit is triggered from outside the vcore */

            
            #define VCORE_EXIT_REQ		0x10000


            /*

            
             * Values for vcore_state.

            
             * Note that these are arranged such that lower values

            
             * (< VCORE_SLEEPING) don't require stolen time accounting

            
             * on load/unload, and higher values do.

            
             */

            
            #define VCORE_INACTIVE	0

            
            #define VCORE_PREEMPT	1

            
            #define VCORE_PIGGYBACK	2

            
            #define VCORE_SLEEPING	3

            
            #define VCORE_RUNNING	4

            
            #define VCORE_EXITING	5

            
            #define VCORE_POLLING	6


            /*

            
             * Struct used to manage memory for a virtual processor area

            
             * registered by a PAPR guest.  There are three types of area

            
             * that a guest can register.

            
             */

            
            struct kvmppc_vpa {

            
            	unsigned long gpa;	/* Current guest phys addr */

            
            	void *pinned_addr;	/* Address in kernel linear mapping */

            
            	void *pinned_end;	/* End of region */

            
            	unsigned long next_gpa;	/* Guest phys addr for update */

            
            	unsigned long len;	/* Number of bytes required */

            
            	u8 update_pending;	/* 1 => update pinned_addr from next_gpa */

            
            	bool dirty;		/* true => area has been modified by kernel */

            
            };


            struct kvmppc_pte {

            
            	ulong eaddr;

            
            	u64 vpage;

            
            	ulong raddr;

            
            	bool may_read		: 1;

            
            	bool may_write		: 1;

            
            	bool may_execute	: 1;

            
            	unsigned long wimg;

            
            	u8 page_size;		/* MMU_PAGE_xxx */

            
            };


            struct kvmppc_mmu {

            
            	/* book3s_64 only */

            
            	void (*slbmte)(struct kvm_vcpu *vcpu, u64 rb, u64 rs);

            
            	u64  (*slbmfee)(struct kvm_vcpu *vcpu, u64 slb_nr);

            
            	u64  (*slbmfev)(struct kvm_vcpu *vcpu, u64 slb_nr);

            
            	void (*slbie)(struct kvm_vcpu *vcpu, u64 slb_nr);

            
            	void (*slbia)(struct kvm_vcpu *vcpu);

            
            	/* book3s */

            
            	void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);

            
            	u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);

            
            	int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,

            
            		      struct kvmppc_pte *pte, bool data, bool iswrite);

            
            	void (*reset_msr)(struct kvm_vcpu *vcpu);

            
            	void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);

            
            	int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);

            
            	u64  (*ea_to_vp)(struct kvm_vcpu *vcpu, gva_t eaddr, bool data);

            
            	bool (*is_dcbz32)(struct kvm_vcpu *vcpu);

            
            };


            struct kvmppc_slb {

            
            	u64 esid;

            
            	u64 vsid;

            
            	u64 orige;

            
            	u64 origv;

            
            	bool valid	: 1;

            
            	bool Ks		: 1;

            
            	bool Kp		: 1;

            
            	bool nx		: 1;

            
            	bool large	: 1;	/* PTEs are 16MB */

            
            	bool tb		: 1;	/* 1TB segment */

            
            	bool class	: 1;

            
            	u8 base_page_size;	/* MMU_PAGE_xxx */

            
            };


            /* Struct used to accumulate timing information in HV real mode code */

            
            struct kvmhv_tb_accumulator {

            
            	u64	seqcount;	/* used to synchronize access, also count * 2 */

            
            	u64	tb_total;	/* total time in timebase ticks */

            
            	u64	tb_min;		/* min time */

            
            	u64	tb_max;		/* max time */

            
            };


            #ifdef CONFIG_PPC_BOOK3S_64

            
            struct kvmppc_irq_map {

            
            	u32	r_hwirq;

            
            	u32	v_hwirq;

            
            	struct irq_desc *desc;

            
            };


            #define	KVMPPC_PIRQ_MAPPED	1024

            
            struct kvmppc_passthru_irqmap {

            
            	int n_mapped;

            
            	struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];

            
            };

            
            #endif


            # ifdef CONFIG_PPC_FSL_BOOK3E

            
            #define KVMPPC_BOOKE_IAC_NUM	2

            
            #define KVMPPC_BOOKE_DAC_NUM	2

            
            # else

            
            #define KVMPPC_BOOKE_IAC_NUM	4

            
            #define KVMPPC_BOOKE_DAC_NUM	2

            
            # endif

            
            #define KVMPPC_BOOKE_MAX_IAC	4

            
            #define KVMPPC_BOOKE_MAX_DAC	2


            /* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */

            
            #define KVMPPC_EPR_NONE		0 /* EPR not supported */

            
            #define KVMPPC_EPR_USER		1 /* exit to userspace to fill EPR */

            
            #define KVMPPC_EPR_KERNEL	2 /* in-kernel irqchip */


            #define KVMPPC_IRQ_DEFAULT	0

            
            #define KVMPPC_IRQ_MPIC		1

            
            #define KVMPPC_IRQ_XICS		2 /* Includes a XIVE option */


            #define MMIO_HPTE_CACHE_SIZE	4


            struct mmio_hpte_cache_entry {

            
            	unsigned long hpte_v;

            
            	unsigned long hpte_r;

            
            	unsigned long rpte;

            
            	unsigned long pte_index;

            
            	unsigned long eaddr;

            
            	unsigned long slb_v;

            
            	long mmio_update;

            
            	unsigned int slb_base_pshift;

            
            };


            struct mmio_hpte_cache {

            
            	struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];

            
            	unsigned int index;

            
            };


            #define KVMPPC_VSX_COPY_NONE		0

            
            #define KVMPPC_VSX_COPY_WORD		1

            
            #define KVMPPC_VSX_COPY_DWORD		2

            
            #define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP	3


            struct openpic;


            /* W0 and W1 of a XIVE thread management context */

            
            union xive_tma_w01 {

            
            	struct {

            
            		u8	nsr;

            
            		u8	cppr;

            
            		u8	ipb;

            
            		u8	lsmfb;

            
            		u8	ack;

            
            		u8	inc;

            
            		u8	age;

            
            		u8	pipr;

            
            	};

            
            	__be64 w01;

            
            };


            struct kvm_vcpu_arch {

            
            	ulong host_stack;

            
            	u32 host_pid;

            
            #ifdef CONFIG_PPC_BOOK3S

            
            	struct kvmppc_slb slb[64];

            
            	int slb_max;		/* 1 + index of last valid entry in slb[] */

            
            	int slb_nr;		/* total number of entries in SLB */

            
            	struct kvmppc_mmu mmu;

            
            	struct kvmppc_vcpu_book3s *book3s;

            
            #endif

            
            #ifdef CONFIG_PPC_BOOK3S_32

            
            	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;

            
            #endif


            	ulong gpr[32];


            	struct thread_fp_state fp;


            #ifdef CONFIG_SPE

            
            	ulong evr[32];

            
            	ulong spefscr;

            
            	ulong host_spefscr;

            
            	u64 acc;

            
            #endif

            
            #ifdef CONFIG_ALTIVEC

            
            	struct thread_vr_state vr;

            
            #endif


            #ifdef CONFIG_KVM_BOOKE_HV

            
            	u32 host_mas4;

            
            	u32 host_mas6;

            
            	u32 shadow_epcr;

            
            	u32 shadow_msrp;

            
            	u32 eplc;

            
            	u32 epsc;

            
            	u32 oldpir;

            
            #endif


            #if defined(CONFIG_BOOKE)

            
            #if defined(CONFIG_KVM_BOOKE_HV) || defined(CONFIG_64BIT)

            
            	u32 epcr;

            
            #endif

            
            #endif


            #ifdef CONFIG_PPC_BOOK3S

            
            	/* For Gekko paired singles */

            
            	u32 qpr[32];

            
            #endif


            	ulong pc;

            
            	ulong ctr;

            
            	ulong lr;

            
            #ifdef CONFIG_PPC_BOOK3S

            
            	ulong tar;

            
            #endif


            	ulong xer;

            
            	u32 cr;


            #ifdef CONFIG_PPC_BOOK3S

            
            	ulong hflags;

            
            	ulong guest_owned_ext;

            
            	ulong purr;

            
            	ulong spurr;

            
            	ulong ic;

            
            	ulong dscr;

            
            	ulong amr;

            
            	ulong uamor;

            
            	ulong iamr;

            
            	u32 ctrl;

            
            	u32 dabrx;

            
            	ulong dabr;

            
            	ulong dawr;

            
            	ulong dawrx;

            
            	ulong ciabr;

            
            	ulong cfar;

            
            	ulong ppr;

            
            	u32 pspb;

            
            	ulong fscr;

            
            	ulong shadow_fscr;

            
            	ulong ebbhr;

            
            	ulong ebbrr;

            
            	ulong bescr;

            
            	ulong csigr;

            
            	ulong tacr;

            
            	ulong tcscr;

            
            	ulong acop;

            
            	ulong wort;

            
            	ulong tid;

            
            	ulong psscr;

            
            	ulong hfscr;

            
            	ulong shadow_srr1;

            
            #endif

            
            	u32 vrsave; /* also USPRG0 */

            
            	u32 mmucr;

            
            	/* shadow_msr is unused for BookE HV */

            
            	ulong shadow_msr;

            
            	ulong csrr0;

            
            	ulong csrr1;

            
            	ulong dsrr0;

            
            	ulong dsrr1;

            
            	ulong mcsrr0;

            
            	ulong mcsrr1;

            
            	ulong mcsr;

            
            	ulong dec;

            
            #ifdef CONFIG_BOOKE

            
            	u32 decar;

            
            #endif

            
            	/* Time base value when we entered the guest */

            
            	u64 entry_tb;

            
            	u64 entry_vtb;

            
            	u64 entry_ic;

            
            	u32 tcr;

            
            	ulong tsr; /* we need to perform set/clr_bits() which requires ulong */

            
            	u32 ivor[64];

            
            	ulong ivpr;

            
            	u32 pvr;


            	u32 shadow_pid;

            
            	u32 shadow_pid1;

            
            	u32 pid;

            
            	u32 swap_pid;


            	u32 ccr0;

            
            	u32 ccr1;

            
            	u32 dbsr;


            	u64 mmcr[5];

            
            	u32 pmc[8];

            
            	u32 spmc[2];

            
            	u64 siar;

            
            	u64 sdar;

            
            	u64 sier;

            
            #ifdef CONFIG_PPC_TRANSACTIONAL_MEM

            
            	u64 tfhar;

            
            	u64 texasr;

            
            	u64 tfiar;


            	u32 cr_tm;

            
            	u64 xer_tm;

            
            	u64 lr_tm;

            
            	u64 ctr_tm;

            
            	u64 amr_tm;

            
            	u64 ppr_tm;

            
            	u64 dscr_tm;

            
            	u64 tar_tm;


            	ulong gpr_tm[32];


            	struct thread_fp_state fp_tm;


            	struct thread_vr_state vr_tm;

            
            	u32 vrsave_tm; /* also USPRG0 */


            #endif


            #ifdef CONFIG_KVM_EXIT_TIMING

            
            	struct mutex exit_timing_lock;

            
            	struct kvmppc_exit_timing timing_exit;

            
            	struct kvmppc_exit_timing timing_last_enter;

            
            	u32 last_exit_type;

            
            	u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];

            
            	u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];

            
            	u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];

            
            	u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];

            
            	u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];

            
            	u64 timing_last_exit;

            
            	struct dentry *debugfs_exit_timing;

            
            #endif


            #ifdef CONFIG_PPC_BOOK3S

            
            	ulong fault_dar;

            
            	u32 fault_dsisr;

            
            	unsigned long intr_msr;

            
            	ulong fault_gpa;	/* guest real address of page fault (POWER9) */

            
            #endif


            #ifdef CONFIG_BOOKE

            
            	ulong fault_dear;

            
            	ulong fault_esr;

            
            	ulong queued_dear;

            
            	ulong queued_esr;

            
            	spinlock_t wdt_lock;

            
            	struct timer_list wdt_timer;

            
            	u32 tlbcfg[4];

            
            	u32 tlbps[4];

            
            	u32 mmucfg;

            
            	u32 eptcfg;

            
            	u32 epr;

            
            	u64 sprg9;

            
            	u32 pwrmgtcr0;

            
            	u32 crit_save;

            
            	/* guest debug registers*/

            
            	struct debug_reg dbg_reg;

            
            #endif

            
            	gpa_t paddr_accessed;

            
            	gva_t vaddr_accessed;

            
            	pgd_t *pgdir;


            	u8 io_gpr; /* GPR used as IO source/target */

            
            	u8 mmio_host_swabbed;

            
            	u8 mmio_sign_extend;

            
            	/* conversion between single and double precision */

            
            	u8 mmio_sp64_extend;

            
            	/*

            
            	 * Number of simulations for vsx.

            
            	 * If we use 2*8bytes to simulate 1*16bytes,

            
            	 * then the number should be 2 and

            
            	 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_DWORD.

            
            	 * If we use 4*4bytes to simulate 1*16bytes,

            
            	 * the number should be 4 and

            
            	 * mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.

            
            	 */

            
            	u8 mmio_vsx_copy_nums;

            
            	u8 mmio_vsx_offset;

            
            	u8 mmio_vsx_copy_type;

            
            	u8 mmio_vsx_tx_sx_enabled;

            
            	u8 osi_needed;

            
            	u8 osi_enabled;

            
            	u8 papr_enabled;

            
            	u8 watchdog_enabled;

            
            	u8 sane;

            
            	u8 cpu_type;

            
            	u8 hcall_needed;

            
            	u8 epr_flags; /* KVMPPC_EPR_xxx */

            
            	u8 epr_needed;


            	u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */


            	struct hrtimer dec_timer;

            
            	u64 dec_jiffies;

            
            	u64 dec_expires;

            
            	unsigned long pending_exceptions;

            
            	u8 ceded;

            
            	u8 prodded;

            
            	u8 doorbell_request;

            
            	u32 last_inst;


            	struct swait_queue_head *wqp;

            
            	struct kvmppc_vcore *vcore;

            
            	int ret;

            
            	int trap;

            
            	int state;

            
            	int ptid;

            
            	int thread_cpu;

            
            	int prev_cpu;

            
            	bool timer_running;

            
            	wait_queue_head_t cpu_run;

            
            	struct machine_check_event mce_evt; /* Valid if trap == 0x200 */


            	struct kvm_vcpu_arch_shared *shared;

            
            #if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)

            
            	bool shared_big_endian;

            
            #endif

            
            	unsigned long magic_page_pa; /* phys addr to map the magic page to */

            
            	unsigned long magic_page_ea; /* effect. addr to map the magic page to */

            
            	bool disable_kernel_nx;


            	int irq_type;		/* one of KVM_IRQ_* */

            
            	int irq_cpu_id;

            
            	struct openpic *mpic;	/* KVM_IRQ_MPIC */

            
            #ifdef CONFIG_KVM_XICS

            
            	struct kvmppc_icp *icp; /* XICS presentation controller */

            
            	struct kvmppc_xive_vcpu *xive_vcpu; /* XIVE virtual CPU data */

            
            	__be32 xive_cam_word;    /* Cooked W2 in proper endian with valid bit */

            
            	u32 xive_pushed;	 /* Is the VP pushed on the physical CPU ? */

            
            	union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */

            
            #endif


            #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE

            
            	struct kvm_vcpu_arch_shared shregs;


            	struct mmio_hpte_cache mmio_cache;

            
            	unsigned long pgfault_addr;

            
            	long pgfault_index;

            
            	unsigned long pgfault_hpte[2];

            
            	struct mmio_hpte_cache_entry *pgfault_cache;


            	struct task_struct *run_task;

            
            	struct kvm_run *kvm_run;


            	spinlock_t vpa_update_lock;

            
            	struct kvmppc_vpa vpa;

            
            	struct kvmppc_vpa dtl;

            
            	struct dtl_entry *dtl_ptr;

            
            	unsigned long dtl_index;

            
            	u64 stolen_logged;

            
            	struct kvmppc_vpa slb_shadow;


            	spinlock_t tbacct_lock;

            
            	u64 busy_stolen;

            
            	u64 busy_preempt;


            	u32 emul_inst;

            
            #endif


            #ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING

            
            	struct kvmhv_tb_accumulator *cur_activity;	/* What we're timing */

            
            	u64	cur_tb_start;			/* when it started */

            
            	struct kvmhv_tb_accumulator rm_entry;	/* real-mode entry code */

            
            	struct kvmhv_tb_accumulator rm_intr;	/* real-mode intr handling */

            
            	struct kvmhv_tb_accumulator rm_exit;	/* real-mode exit code */

            
            	struct kvmhv_tb_accumulator guest_time;	/* guest execution */

            
            	struct kvmhv_tb_accumulator cede_time;	/* time napping inside guest */


            	struct dentry *debugfs_dir;

            
            	struct dentry *debugfs_timings;

            
            #endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */

            
            };


            #define VCPU_FPR(vcpu, i)	(vcpu)->arch.fp.fpr[i][TS_FPROFFSET]

            
            #define VCPU_VSX_FPR(vcpu, i, j)	((vcpu)->arch.fp.fpr[i][j])

            
            #define VCPU_VSX_VR(vcpu, i)		((vcpu)->arch.vr.vr[i])


            /* Values for vcpu->arch.state */

            
            #define KVMPPC_VCPU_NOTREADY		0

            
            #define KVMPPC_VCPU_RUNNABLE		1

            
            #define KVMPPC_VCPU_BUSY_IN_HOST	2


            /* Values for vcpu->arch.io_gpr */

            
            #define KVM_MMIO_REG_MASK	0x001f

            
            #define KVM_MMIO_REG_EXT_MASK	0xffe0

            
            #define KVM_MMIO_REG_GPR	0x0000

            
            #define KVM_MMIO_REG_FPR	0x0020

            
            #define KVM_MMIO_REG_QPR	0x0040

            
            #define KVM_MMIO_REG_FQPR	0x0060

            
            #define KVM_MMIO_REG_VSX	0x0080


            #define __KVM_HAVE_ARCH_WQP

            
            #define __KVM_HAVE_CREATE_DEVICE


            static inline void kvm_arch_hardware_disable(void) {}

            
            static inline void kvm_arch_hardware_unsetup(void) {}

            
            static inline void kvm_arch_sync_events(struct kvm *kvm) {}

            
            static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}

            
            static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}

            
            static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}

            
            static inline void kvm_arch_exit(void) {}

            
            static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}

            
            static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}

            
            static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}


            #endif /* __POWERPC_KVM_HOST_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 IBM Corp. 2007
	*
	* Authors: Hollis Blanchard <hollisb@us.ibm.com>
	*/

	#ifndef __POWERPC_KVM_HOST_H__
	#define __POWERPC_KVM_HOST_H__

	#include <linux/mutex.h>
	#include <linux/hrtimer.h>
	#include <linux/interrupt.h>
	#include <linux/types.h>
	#include <linux/kvm_types.h>
	#include <linux/threads.h>
	#include <linux/spinlock.h>
	#include <linux/kvm_para.h>
	#include <linux/list.h>
	#include <linux/atomic.h>
	#include <asm/kvm_asm.h>
	#include <asm/processor.h>
	#include <asm/page.h>
	#include <asm/cacheflush.h>
	#include <asm/hvcall.h>
	#include <asm/mce.h>

	#define KVM_MAX_VCPUS NR_CPUS
	#define KVM_MAX_VCORES NR_CPUS
	#define KVM_USER_MEM_SLOTS 512

	#include <asm/cputhreads.h>
	#define KVM_MAX_VCPU_ID (threads_per_subcore * KVM_MAX_VCORES)

	#define __KVM_HAVE_ARCH_INTC_INITIALIZED

	#define KVM_HALT_POLL_NS_DEFAULT 10000 /* 10 us */

	/* These values are internal and can be increased later */
	#define KVM_NR_IRQCHIPS 1
	#define KVM_IRQCHIP_NUM_PINS 256

	/* PPC-specific vcpu->requests bit members */
	#define KVM_REQ_WATCHDOG KVM_ARCH_REQ(0)
	#define KVM_REQ_EPR_EXIT KVM_ARCH_REQ(1)

	#include <linux/mmu_notifier.h>

	#define KVM_ARCH_WANT_MMU_NOTIFIER

	extern int kvm_unmap_hva(struct kvm *kvm, unsigned long hva);
	extern int kvm_unmap_hva_range(struct kvm *kvm,
	unsigned long start, unsigned long end);
	extern int kvm_age_hva(struct kvm *kvm, unsigned long start, unsigned long end);
	extern int kvm_test_age_hva(struct kvm *kvm, unsigned long hva);
	extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);

	#define HPTEG_CACHE_NUM (1 << 15)
	#define HPTEG_HASH_BITS_PTE 13
	#define HPTEG_HASH_BITS_PTE_LONG 12
	#define HPTEG_HASH_BITS_VPTE 13
	#define HPTEG_HASH_BITS_VPTE_LONG 5
	#define HPTEG_HASH_BITS_VPTE_64K 11
	#define HPTEG_HASH_NUM_PTE (1 << HPTEG_HASH_BITS_PTE)
	#define HPTEG_HASH_NUM_PTE_LONG (1 << HPTEG_HASH_BITS_PTE_LONG)
	#define HPTEG_HASH_NUM_VPTE (1 << HPTEG_HASH_BITS_VPTE)
	#define HPTEG_HASH_NUM_VPTE_LONG (1 << HPTEG_HASH_BITS_VPTE_LONG)
	#define HPTEG_HASH_NUM_VPTE_64K (1 << HPTEG_HASH_BITS_VPTE_64K)

	/* Physical Address Mask - allowed range of real mode RAM access */
	#define KVM_PAM 0x0fffffffffffffffULL

	struct lppaca;
	struct slb_shadow;
	struct dtl_entry;

	struct kvmppc_vcpu_book3s;
	struct kvmppc_book3s_shadow_vcpu;

	struct kvm_vm_stat {
	ulong remote_tlb_flush;
	};

	struct kvm_vcpu_stat {
	u64 sum_exits;
	u64 mmio_exits;
	u64 signal_exits;
	u64 light_exits;
	/* Account for special types of light exits: */
	u64 itlb_real_miss_exits;
	u64 itlb_virt_miss_exits;
	u64 dtlb_real_miss_exits;
	u64 dtlb_virt_miss_exits;
	u64 syscall_exits;
	u64 isi_exits;
	u64 dsi_exits;
	u64 emulated_inst_exits;
	u64 dec_exits;
	u64 ext_intr_exits;
	u64 halt_poll_success_ns;
	u64 halt_poll_fail_ns;
	u64 halt_wait_ns;
	u64 halt_successful_poll;
	u64 halt_attempted_poll;
	u64 halt_successful_wait;
	u64 halt_poll_invalid;
	u64 halt_wakeup;
	u64 dbell_exits;
	u64 gdbell_exits;
	u64 ld;
	u64 st;
	#ifdef CONFIG_PPC_BOOK3S
	u64 pf_storage;
	u64 pf_instruc;
	u64 sp_storage;
	u64 sp_instruc;
	u64 queue_intr;
	u64 ld_slow;
	u64 st_slow;
	#endif
	u64 pthru_all;
	u64 pthru_host;
	u64 pthru_bad_aff;
	};

	enum kvm_exit_types {
	MMIO_EXITS,
	SIGNAL_EXITS,
	ITLB_REAL_MISS_EXITS,
	ITLB_VIRT_MISS_EXITS,
	DTLB_REAL_MISS_EXITS,
	DTLB_VIRT_MISS_EXITS,
	SYSCALL_EXITS,
	ISI_EXITS,
	DSI_EXITS,
	EMULATED_INST_EXITS,
	EMULATED_MTMSRWE_EXITS,
	EMULATED_WRTEE_EXITS,
	EMULATED_MTSPR_EXITS,
	EMULATED_MFSPR_EXITS,
	EMULATED_MTMSR_EXITS,
	EMULATED_MFMSR_EXITS,
	EMULATED_TLBSX_EXITS,
	EMULATED_TLBWE_EXITS,
	EMULATED_RFI_EXITS,
	EMULATED_RFCI_EXITS,
	EMULATED_RFDI_EXITS,
	DEC_EXITS,
	EXT_INTR_EXITS,
	HALT_WAKEUP,
	USR_PR_INST,
	FP_UNAVAIL,
	DEBUG_EXITS,
	TIMEINGUEST,
	DBELL_EXITS,
	GDBELL_EXITS,
	__NUMBER_OF_KVM_EXIT_TYPES
	};

	/* allow access to big endian 32bit upper/lower parts and 64bit var */
	struct kvmppc_exit_timing {
	union {
	u64 tv64;
	struct {
	u32 tbu, tbl;
	} tv32;
	};
	};

	struct kvmppc_pginfo {
	unsigned long pfn;
	atomic_t refcnt;
	};

	struct kvmppc_spapr_tce_iommu_table {
	struct rcu_head rcu;
	struct list_head next;
	struct iommu_table *tbl;
	struct kref kref;
	};

	struct kvmppc_spapr_tce_table {
	struct list_head list;
	struct kvm *kvm;
	u64 liobn;
	struct rcu_head rcu;
	u32 page_shift;
	u64 offset; /* in pages */
	u64 size; /* window size in pages */
	struct list_head iommu_tables;
	struct page *pages[0];
	};

	/* XICS components, defined in book3s_xics.c */
	struct kvmppc_xics;
	struct kvmppc_icp;
	extern struct kvm_device_ops kvm_xics_ops;

	/* XIVE components, defined in book3s_xive.c */
	struct kvmppc_xive;
	struct kvmppc_xive_vcpu;
	extern struct kvm_device_ops kvm_xive_ops;

	struct kvmppc_passthru_irqmap;

	/*
	* The reverse mapping array has one entry for each HPTE,
	* which stores the guest's view of the second word of the HPTE
	* (including the guest physical address of the mapping),
	* plus forward and backward pointers in a doubly-linked ring
	* of HPTEs that map the same host page. The pointers in this
	* ring are 32-bit HPTE indexes, to save space.
	*/
	struct revmap_entry {
	unsigned long guest_rpte;
	unsigned int forw, back;
	};

	/*
	* We use the top bit of each memslot->arch.rmap entry as a lock bit,
	* and bit 32 as a present flag. The bottom 32 bits are the
	* index in the guest HPT of a HPTE that points to the page.
	*/
	#define KVMPPC_RMAP_LOCK_BIT 63
	#define KVMPPC_RMAP_RC_SHIFT 32
	#define KVMPPC_RMAP_CHG_SHIFT 48
	#define KVMPPC_RMAP_REFERENCED (HPTE_R_R << KVMPPC_RMAP_RC_SHIFT)
	#define KVMPPC_RMAP_CHANGED (HPTE_R_C << KVMPPC_RMAP_RC_SHIFT)
	#define KVMPPC_RMAP_CHG_ORDER (0x3ful << KVMPPC_RMAP_CHG_SHIFT)
	#define KVMPPC_RMAP_PRESENT 0x100000000ul
	#define KVMPPC_RMAP_INDEX 0xfffffffful

	struct kvm_arch_memory_slot {
	#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
	unsigned long *rmap;
	#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
	};

	struct kvm_hpt_info {
	/* Host virtual (linear mapping) address of guest HPT */
	unsigned long virt;
	/* Array of reverse mapping entries for each guest HPTE */
	struct revmap_entry *rev;
	/* Guest HPT size is 2*(order) bytes /
	u32 order;
	/* 1 if HPT allocated with CMA, 0 otherwise */
	int cma;
	};

	struct kvm_resize_hpt;

	struct kvm_arch {
	unsigned int lpid;
	unsigned int smt_mode; /* # vcpus per virtual core */
	unsigned int emul_smt_mode; /* emualted SMT mode, on P9 */
	#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
	unsigned int tlb_sets;
	struct kvm_hpt_info hpt;
	atomic64_t mmio_update;
	unsigned int host_lpid;
	unsigned long host_lpcr;
	unsigned long sdr1;
	unsigned long host_sdr1;
	int tlbie_lock;
	unsigned long lpcr;
	unsigned long vrma_slb_v;
	int hpte_setup_done;
	atomic_t vcpus_running;
	u32 online_vcores;
	atomic_t hpte_mod_interest;
	cpumask_t need_tlb_flush;
	cpumask_t cpu_in_guest;
	u8 radix;
	u8 fwnmi_enabled;
	pgd_t *pgtable;
	u64 process_table;
	struct dentry *debugfs_dir;
	struct dentry *htab_dentry;
	struct kvm_resize_hpt resize_hpt; / protected by kvm->lock */
	#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
	#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
	struct mutex hpt_mutex;
	#endif
	#ifdef CONFIG_PPC_BOOK3S_64
	struct list_head spapr_tce_tables;
	struct list_head rtas_tokens;
	DECLARE_BITMAP(enabled_hcalls, MAX_HCALL_OPCODE/4 + 1);
	#endif
	#ifdef CONFIG_KVM_MPIC
	struct openpic *mpic;
	#endif
	#ifdef CONFIG_KVM_XICS
	struct kvmppc_xics *xics;
	struct kvmppc_xive *xive;
	struct kvmppc_passthru_irqmap *pimap;
	#endif
	struct kvmppc_ops *kvm_ops;
	#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
	/* This array can grow quite large, keep it at the end */
	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
	#endif
	};

	#define VCORE_ENTRY_MAP(vc) ((vc)->entry_exit_map & 0xff)
	#define VCORE_EXIT_MAP(vc) ((vc)->entry_exit_map >> 8)
	#define VCORE_IS_EXITING(vc) (VCORE_EXIT_MAP(vc) != 0)

	/* This bit is used when a vcore exit is triggered from outside the vcore */
	#define VCORE_EXIT_REQ 0x10000

	/*
	* Values for vcore_state.
	* Note that these are arranged such that lower values
	* (< VCORE_SLEEPING) don't require stolen time accounting
	* on load/unload, and higher values do.
	*/
	#define VCORE_INACTIVE 0
	#define VCORE_PREEMPT 1
	#define VCORE_PIGGYBACK 2
	#define VCORE_SLEEPING 3
	#define VCORE_RUNNING 4
	#define VCORE_EXITING 5
	#define VCORE_POLLING 6

	/*
	* Struct used to manage memory for a virtual processor area
	* registered by a PAPR guest. There are three types of area
	* that a guest can register.
	*/
	struct kvmppc_vpa {
	unsigned long gpa; /* Current guest phys addr */
	void pinned_addr; / Address in kernel linear mapping */
	void pinned_end; / End of region */
	unsigned long next_gpa; /* Guest phys addr for update */
	unsigned long len; /* Number of bytes required */
	u8 update_pending; /* 1 => update pinned_addr from next_gpa */
	bool dirty; /* true => area has been modified by kernel */
	};

	struct kvmppc_pte {
	ulong eaddr;
	u64 vpage;
	ulong raddr;
	bool may_read : 1;
	bool may_write : 1;
	bool may_execute : 1;
	unsigned long wimg;
	u8 page_size; /* MMU_PAGE_xxx */
	};

	struct kvmppc_mmu {
	/* book3s_64 only */
	void (slbmte)(struct kvm_vcpu vcpu, u64 rb, u64 rs);
	u64 (slbmfee)(struct kvm_vcpu vcpu, u64 slb_nr);
	u64 (slbmfev)(struct kvm_vcpu vcpu, u64 slb_nr);
	void (slbie)(struct kvm_vcpu vcpu, u64 slb_nr);
	void (slbia)(struct kvm_vcpu vcpu);
	/* book3s */
	void (mtsrin)(struct kvm_vcpu vcpu, u32 srnum, ulong value);
	u32 (mfsrin)(struct kvm_vcpu vcpu, u32 srnum);
	int (xlate)(struct kvm_vcpu vcpu, gva_t eaddr,
	struct kvmppc_pte *pte, bool data, bool iswrite);
	void (reset_msr)(struct kvm_vcpu vcpu);
	void (tlbie)(struct kvm_vcpu vcpu, ulong addr, bool large);
	int (esid_to_vsid)(struct kvm_vcpu vcpu, ulong esid, u64 *vsid);
	u64 (ea_to_vp)(struct kvm_vcpu vcpu, gva_t eaddr, bool data);
	bool (is_dcbz32)(struct kvm_vcpu vcpu);
	};

	struct kvmppc_slb {
	u64 esid;
	u64 vsid;
	u64 orige;
	u64 origv;
	bool valid : 1;
	bool Ks : 1;
	bool Kp : 1;
	bool nx : 1;
	bool large : 1; /* PTEs are 16MB */
	bool tb : 1; /* 1TB segment */
	bool class : 1;
	u8 base_page_size; /* MMU_PAGE_xxx */
	};

	/* Struct used to accumulate timing information in HV real mode code */
	struct kvmhv_tb_accumulator {
	u64 seqcount; /* used to synchronize access, also count * 2 */
	u64 tb_total; /* total time in timebase ticks */
	u64 tb_min; /* min time */
	u64 tb_max; /* max time */
	};

	#ifdef CONFIG_PPC_BOOK3S_64
	struct kvmppc_irq_map {
	u32 r_hwirq;
	u32 v_hwirq;
	struct irq_desc *desc;
	};

	#define KVMPPC_PIRQ_MAPPED 1024
	struct kvmppc_passthru_irqmap {
	int n_mapped;
	struct kvmppc_irq_map mapped[KVMPPC_PIRQ_MAPPED];
	};
	#endif

	# ifdef CONFIG_PPC_FSL_BOOK3E
	#define KVMPPC_BOOKE_IAC_NUM 2
	#define KVMPPC_BOOKE_DAC_NUM 2
	# else
	#define KVMPPC_BOOKE_IAC_NUM 4
	#define KVMPPC_BOOKE_DAC_NUM 2
	# endif
	#define KVMPPC_BOOKE_MAX_IAC 4
	#define KVMPPC_BOOKE_MAX_DAC 2

	/* KVMPPC_EPR_USER takes precedence over KVMPPC_EPR_KERNEL */
	#define KVMPPC_EPR_NONE 0 /* EPR not supported */
	#define KVMPPC_EPR_USER 1 /* exit to userspace to fill EPR */
	#define KVMPPC_EPR_KERNEL 2 /* in-kernel irqchip */

	#define KVMPPC_IRQ_DEFAULT 0
	#define KVMPPC_IRQ_MPIC 1
	#define KVMPPC_IRQ_XICS 2 /* Includes a XIVE option */

	#define MMIO_HPTE_CACHE_SIZE 4

	struct mmio_hpte_cache_entry {
	unsigned long hpte_v;
	unsigned long hpte_r;
	unsigned long rpte;
	unsigned long pte_index;
	unsigned long eaddr;
	unsigned long slb_v;
	long mmio_update;
	unsigned int slb_base_pshift;
	};

	struct mmio_hpte_cache {
	struct mmio_hpte_cache_entry entry[MMIO_HPTE_CACHE_SIZE];
	unsigned int index;
	};

	#define KVMPPC_VSX_COPY_NONE 0
	#define KVMPPC_VSX_COPY_WORD 1
	#define KVMPPC_VSX_COPY_DWORD 2
	#define KVMPPC_VSX_COPY_DWORD_LOAD_DUMP 3

	struct openpic;

	/* W0 and W1 of a XIVE thread management context */
	union xive_tma_w01 {
	struct {
	u8 nsr;
	u8 cppr;
	u8 ipb;
	u8 lsmfb;
	u8 ack;
	u8 inc;
	u8 age;
	u8 pipr;
	};
	__be64 w01;
	};

	struct kvm_vcpu_arch {
	ulong host_stack;
	u32 host_pid;
	#ifdef CONFIG_PPC_BOOK3S
	struct kvmppc_slb slb[64];
	int slb_max; /* 1 + index of last valid entry in slb[] */
	int slb_nr; /* total number of entries in SLB */
	struct kvmppc_mmu mmu;
	struct kvmppc_vcpu_book3s *book3s;
	#endif
	#ifdef CONFIG_PPC_BOOK3S_32
	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
	#endif

	ulong gpr[32];

	struct thread_fp_state fp;

	#ifdef CONFIG_SPE
	ulong evr[32];
	ulong spefscr;
	ulong host_spefscr;
	u64 acc;
	#endif
	#ifdef CONFIG_ALTIVEC
	struct thread_vr_state vr;
	#endif

	#ifdef CONFIG_KVM_BOOKE_HV
	u32 host_mas4;
	u32 host_mas6;
	u32 shadow_epcr;
	u32 shadow_msrp;
	u32 eplc;
	u32 epsc;
	u32 oldpir;
	#endif

	#if defined(CONFIG_BOOKE)
	#if defined(CONFIG_KVM_BOOKE_HV) \|\| defined(CONFIG_64BIT)
	u32 epcr;
	#endif
	#endif

	#ifdef CONFIG_PPC_BOOK3S
	/* For Gekko paired singles */
	u32 qpr[32];
	#endif

	ulong pc;
	ulong ctr;
	ulong lr;
	#ifdef CONFIG_PPC_BOOK3S
	ulong tar;
	#endif

	ulong xer;
	u32 cr;

	#ifdef CONFIG_PPC_BOOK3S
	ulong hflags;
	ulong guest_owned_ext;
	ulong purr;
	ulong spurr;
	ulong ic;
	ulong dscr;
	ulong amr;
	ulong uamor;
	ulong iamr;
	u32 ctrl;
	u32 dabrx;
	ulong dabr;
	ulong dawr;
	ulong dawrx;
	ulong ciabr;
	ulong cfar;
	ulong ppr;
	u32 pspb;
	ulong fscr;
	ulong shadow_fscr;
	ulong ebbhr;
	ulong ebbrr;
	ulong bescr;
	ulong csigr;
	ulong tacr;
	ulong tcscr;
	ulong acop;
	ulong wort;
	ulong tid;
	ulong psscr;
	ulong hfscr;
	ulong shadow_srr1;
	#endif
	u32 vrsave; /* also USPRG0 */
	u32 mmucr;
	/* shadow_msr is unused for BookE HV */
	ulong shadow_msr;
	ulong csrr0;
	ulong csrr1;
	ulong dsrr0;
	ulong dsrr1;
	ulong mcsrr0;
	ulong mcsrr1;
	ulong mcsr;
	ulong dec;
	#ifdef CONFIG_BOOKE
	u32 decar;
	#endif
	/* Time base value when we entered the guest */
	u64 entry_tb;
	u64 entry_vtb;
	u64 entry_ic;
	u32 tcr;
	ulong tsr; /* we need to perform set/clr_bits() which requires ulong */
	u32 ivor[64];
	ulong ivpr;
	u32 pvr;

	u32 shadow_pid;
	u32 shadow_pid1;
	u32 pid;
	u32 swap_pid;

	u32 ccr0;
	u32 ccr1;
	u32 dbsr;

	u64 mmcr[5];
	u32 pmc[8];
	u32 spmc[2];
	u64 siar;
	u64 sdar;
	u64 sier;
	#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
	u64 tfhar;
	u64 texasr;
	u64 tfiar;

	u32 cr_tm;
	u64 xer_tm;
	u64 lr_tm;
	u64 ctr_tm;
	u64 amr_tm;
	u64 ppr_tm;
	u64 dscr_tm;
	u64 tar_tm;

	ulong gpr_tm[32];

	struct thread_fp_state fp_tm;

	struct thread_vr_state vr_tm;
	u32 vrsave_tm; /* also USPRG0 */

	#endif

	#ifdef CONFIG_KVM_EXIT_TIMING
	struct mutex exit_timing_lock;
	struct kvmppc_exit_timing timing_exit;
	struct kvmppc_exit_timing timing_last_enter;
	u32 last_exit_type;
	u32 timing_count_type[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_sum_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_sum_quad_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_min_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_max_duration[__NUMBER_OF_KVM_EXIT_TYPES];
	u64 timing_last_exit;
	struct dentry *debugfs_exit_timing;
	#endif

	#ifdef CONFIG_PPC_BOOK3S
	ulong fault_dar;
	u32 fault_dsisr;
	unsigned long intr_msr;
	ulong fault_gpa; /* guest real address of page fault (POWER9) */
	#endif

	#ifdef CONFIG_BOOKE
	ulong fault_dear;
	ulong fault_esr;
	ulong queued_dear;
	ulong queued_esr;
	spinlock_t wdt_lock;
	struct timer_list wdt_timer;
	u32 tlbcfg[4];
	u32 tlbps[4];
	u32 mmucfg;
	u32 eptcfg;
	u32 epr;
	u64 sprg9;
	u32 pwrmgtcr0;
	u32 crit_save;
	/* guest debug registers*/
	struct debug_reg dbg_reg;
	#endif
	gpa_t paddr_accessed;
	gva_t vaddr_accessed;
	pgd_t *pgdir;

	u8 io_gpr; /* GPR used as IO source/target */
	u8 mmio_host_swabbed;
	u8 mmio_sign_extend;
	/* conversion between single and double precision */
	u8 mmio_sp64_extend;
	/*
	* Number of simulations for vsx.
	* If we use 28bytes to simulate 116bytes,
	* then the number should be 2 and
	* mmio_vsx_copy_type=KVMPPC_VSX_COPY_DWORD.
	* If we use 44bytes to simulate 116bytes,
	* the number should be 4 and
	* mmio_vsx_copy_type=KVMPPC_VSX_COPY_WORD.
	*/
	u8 mmio_vsx_copy_nums;
	u8 mmio_vsx_offset;
	u8 mmio_vsx_copy_type;
	u8 mmio_vsx_tx_sx_enabled;
	u8 osi_needed;
	u8 osi_enabled;
	u8 papr_enabled;
	u8 watchdog_enabled;
	u8 sane;
	u8 cpu_type;
	u8 hcall_needed;
	u8 epr_flags; /* KVMPPC_EPR_xxx */
	u8 epr_needed;

	u32 cpr0_cfgaddr; /* holds the last set cpr0_cfgaddr */

	struct hrtimer dec_timer;
	u64 dec_jiffies;
	u64 dec_expires;
	unsigned long pending_exceptions;
	u8 ceded;
	u8 prodded;
	u8 doorbell_request;
	u32 last_inst;

	struct swait_queue_head *wqp;
	struct kvmppc_vcore *vcore;
	int ret;
	int trap;
	int state;
	int ptid;
	int thread_cpu;
	int prev_cpu;
	bool timer_running;
	wait_queue_head_t cpu_run;
	struct machine_check_event mce_evt; /* Valid if trap == 0x200 */

	struct kvm_vcpu_arch_shared *shared;
	#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_KVM_BOOK3S_PR_POSSIBLE)
	bool shared_big_endian;
	#endif
	unsigned long magic_page_pa; /* phys addr to map the magic page to */
	unsigned long magic_page_ea; /* effect. addr to map the magic page to */
	bool disable_kernel_nx;

	int irq_type; /* one of KVM_IRQ_* */
	int irq_cpu_id;
	struct openpic mpic; / KVM_IRQ_MPIC */
	#ifdef CONFIG_KVM_XICS
	struct kvmppc_icp icp; / XICS presentation controller */
	struct kvmppc_xive_vcpu xive_vcpu; / XIVE virtual CPU data */
	__be32 xive_cam_word; /* Cooked W2 in proper endian with valid bit */
	u32 xive_pushed; /* Is the VP pushed on the physical CPU ? */
	union xive_tma_w01 xive_saved_state; /* W0..1 of XIVE thread state */
	#endif

	#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
	struct kvm_vcpu_arch_shared shregs;

	struct mmio_hpte_cache mmio_cache;
	unsigned long pgfault_addr;
	long pgfault_index;
	unsigned long pgfault_hpte[2];
	struct mmio_hpte_cache_entry *pgfault_cache;

	struct task_struct *run_task;
	struct kvm_run *kvm_run;

	spinlock_t vpa_update_lock;
	struct kvmppc_vpa vpa;
	struct kvmppc_vpa dtl;
	struct dtl_entry *dtl_ptr;
	unsigned long dtl_index;
	u64 stolen_logged;
	struct kvmppc_vpa slb_shadow;

	spinlock_t tbacct_lock;
	u64 busy_stolen;
	u64 busy_preempt;

	u32 emul_inst;
	#endif

	#ifdef CONFIG_KVM_BOOK3S_HV_EXIT_TIMING
	struct kvmhv_tb_accumulator cur_activity; / What we're timing */
	u64 cur_tb_start; /* when it started */
	struct kvmhv_tb_accumulator rm_entry; /* real-mode entry code */
	struct kvmhv_tb_accumulator rm_intr; /* real-mode intr handling */
	struct kvmhv_tb_accumulator rm_exit; /* real-mode exit code */
	struct kvmhv_tb_accumulator guest_time; /* guest execution */
	struct kvmhv_tb_accumulator cede_time; /* time napping inside guest */

	struct dentry *debugfs_dir;
	struct dentry *debugfs_timings;
	#endif /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */
	};

	#define VCPU_FPR(vcpu, i) (vcpu)->arch.fp.fpr[i][TS_FPROFFSET]
	#define VCPU_VSX_FPR(vcpu, i, j) ((vcpu)->arch.fp.fpr[i][j])
	#define VCPU_VSX_VR(vcpu, i) ((vcpu)->arch.vr.vr[i])

	/* Values for vcpu->arch.state */
	#define KVMPPC_VCPU_NOTREADY 0
	#define KVMPPC_VCPU_RUNNABLE 1
	#define KVMPPC_VCPU_BUSY_IN_HOST 2

	/* Values for vcpu->arch.io_gpr */
	#define KVM_MMIO_REG_MASK 0x001f
	#define KVM_MMIO_REG_EXT_MASK 0xffe0
	#define KVM_MMIO_REG_GPR 0x0000
	#define KVM_MMIO_REG_FPR 0x0020
	#define KVM_MMIO_REG_QPR 0x0040
	#define KVM_MMIO_REG_FQPR 0x0060
	#define KVM_MMIO_REG_VSX 0x0080

	#define __KVM_HAVE_ARCH_WQP
	#define __KVM_HAVE_CREATE_DEVICE

	static inline void kvm_arch_hardware_disable(void) {}
	static inline void kvm_arch_hardware_unsetup(void) {}
	static inline void kvm_arch_sync_events(struct kvm *kvm) {}
	static inline void kvm_arch_memslots_updated(struct kvm *kvm, u64 gen) {}
	static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
	static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
	static inline void kvm_arch_exit(void) {}
	static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}
	static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}
	static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {}

	#endif /* __POWERPC_KVM_HOST_H__ */