[deliverable/linux.git] / arch / s390 / include / asm / kvm_host.h

/*
 * definition for kernel virtual machines on s390
 *
 * Copyright IBM Corp. 2008, 2009
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License (version 2 only)
 * as published by the Free Software Foundation.
 *
 *    Author(s): Carsten Otte <cotte@de.ibm.com>
 */


#ifndef ASM_KVM_HOST_H
#define ASM_KVM_HOST_H

#include <linux/types.h>
#include <linux/hrtimer.h>
#include <linux/interrupt.h>
#include <linux/kvm_types.h>
#include <linux/kvm_host.h>
#include <linux/kvm.h>
#include <asm/debug.h>
#include <asm/cpu.h>
#include <asm/isc.h>

#define KVM_MAX_VCPUS 64
#define KVM_USER_MEM_SLOTS 32

/*
 * These seem to be used for allocating ->chip in the routing table,
 * which we don't use. 4096 is an out-of-thin-air value. If we need
 * to look at ->chip later on, we'll need to revisit this.
 */
#define KVM_NR_IRQCHIPS 1
#define KVM_IRQCHIP_NUM_PINS 4096

#define SIGP_CTRL_C		0x80
#define SIGP_CTRL_SCN_MASK	0x3f

struct sca_entry {
	__u8	reserved0;
	__u8	sigp_ctrl;
	__u16	reserved[3];
	__u64	sda;
	__u64	reserved2[2];
} __attribute__((packed));

union ipte_control {
	unsigned long val;
	struct {
		unsigned long k  : 1;
		unsigned long kh : 31;
		unsigned long kg : 32;
	};
};

struct sca_block {
	union ipte_control ipte_control;
	__u64	reserved[5];
	__u64	mcn;
	__u64	reserved2;
	struct sca_entry cpu[64];
} __attribute__((packed));

#define CPUSTAT_STOPPED    0x80000000
#define CPUSTAT_WAIT       0x10000000
#define CPUSTAT_ECALL_PEND 0x08000000
#define CPUSTAT_STOP_INT   0x04000000
#define CPUSTAT_IO_INT     0x02000000
#define CPUSTAT_EXT_INT    0x01000000
#define CPUSTAT_RUNNING    0x00800000
#define CPUSTAT_RETAINED   0x00400000
#define CPUSTAT_TIMING_SUB 0x00020000
#define CPUSTAT_SIE_SUB    0x00010000
#define CPUSTAT_RRF        0x00008000
#define CPUSTAT_SLSV       0x00004000
#define CPUSTAT_SLSR       0x00002000
#define CPUSTAT_ZARCH      0x00000800
#define CPUSTAT_MCDS       0x00000100
#define CPUSTAT_SM         0x00000080
#define CPUSTAT_IBS        0x00000040
#define CPUSTAT_G          0x00000008
#define CPUSTAT_GED        0x00000004
#define CPUSTAT_J          0x00000002
#define CPUSTAT_P          0x00000001

struct kvm_s390_sie_block {
	atomic_t cpuflags;		/* 0x0000 */
	__u32 : 1;			/* 0x0004 */
	__u32 prefix : 18;
	__u32 : 1;
	__u32 ibc : 12;
	__u8	reserved08[4];		/* 0x0008 */
#define PROG_IN_SIE (1<<0)
	__u32	prog0c;			/* 0x000c */
	__u8	reserved10[16];		/* 0x0010 */
#define PROG_BLOCK_SIE 0x00000001
	atomic_t prog20;		/* 0x0020 */
	__u8	reserved24[4];		/* 0x0024 */
	__u64	cputm;			/* 0x0028 */
	__u64	ckc;			/* 0x0030 */
	__u64	epoch;			/* 0x0038 */
	__u8	reserved40[4];		/* 0x0040 */
#define LCTL_CR0	0x8000
#define LCTL_CR6	0x0200
#define LCTL_CR9	0x0040
#define LCTL_CR10	0x0020
#define LCTL_CR11	0x0010
#define LCTL_CR14	0x0002
	__u16   lctl;			/* 0x0044 */
	__s16	icpua;			/* 0x0046 */
#define ICTL_PINT	0x20000000
#define ICTL_LPSW	0x00400000
#define ICTL_STCTL	0x00040000
#define ICTL_ISKE	0x00004000
#define ICTL_SSKE	0x00002000
#define ICTL_RRBE	0x00001000
#define ICTL_TPROT	0x00000200
	__u32	ictl;			/* 0x0048 */
	__u32	eca;			/* 0x004c */
#define ICPT_INST	0x04
#define ICPT_PROGI	0x08
#define ICPT_INSTPROGI	0x0C
#define ICPT_OPEREXC	0x2C
#define ICPT_PARTEXEC	0x38
#define ICPT_IOINST	0x40
	__u8	icptcode;		/* 0x0050 */
	__u8	icptstatus;		/* 0x0051 */
	__u16	ihcpu;			/* 0x0052 */
	__u8	reserved54[2];		/* 0x0054 */
	__u16	ipa;			/* 0x0056 */
	__u32	ipb;			/* 0x0058 */
	__u32	scaoh;			/* 0x005c */
	__u8	reserved60;		/* 0x0060 */
	__u8	ecb;			/* 0x0061 */
	__u8    ecb2;                   /* 0x0062 */
#define ECB3_AES 0x04
#define ECB3_DEA 0x08
	__u8    ecb3;			/* 0x0063 */
	__u32	scaol;			/* 0x0064 */
	__u8	reserved68[4];		/* 0x0068 */
	__u32	todpr;			/* 0x006c */
	__u8	reserved70[32];		/* 0x0070 */
	psw_t	gpsw;			/* 0x0090 */
	__u64	gg14;			/* 0x00a0 */
	__u64	gg15;			/* 0x00a8 */
	__u8	reservedb0[20];		/* 0x00b0 */
	__u16	extcpuaddr;		/* 0x00c4 */
	__u16	eic;			/* 0x00c6 */
	__u32	reservedc8;		/* 0x00c8 */
	__u16	pgmilc;			/* 0x00cc */
	__u16	iprcc;			/* 0x00ce */
	__u32	dxc;			/* 0x00d0 */
	__u16	mcn;			/* 0x00d4 */
	__u8	perc;			/* 0x00d6 */
	__u8	peratmid;		/* 0x00d7 */
	__u64	peraddr;		/* 0x00d8 */
	__u8	eai;			/* 0x00e0 */
	__u8	peraid;			/* 0x00e1 */
	__u8	oai;			/* 0x00e2 */
	__u8	armid;			/* 0x00e3 */
	__u8	reservede4[4];		/* 0x00e4 */
	__u64	tecmc;			/* 0x00e8 */
	__u8	reservedf0[12];		/* 0x00f0 */
#define CRYCB_FORMAT1 0x00000001
#define CRYCB_FORMAT2 0x00000003
	__u32	crycbd;			/* 0x00fc */
	__u64	gcr[16];		/* 0x0100 */
	__u64	gbea;			/* 0x0180 */
	__u8	reserved188[24];	/* 0x0188 */
	__u32	fac;			/* 0x01a0 */
	__u8	reserved1a4[20];	/* 0x01a4 */
	__u64	cbrlo;			/* 0x01b8 */
	__u8	reserved1c0[30];	/* 0x01c0 */
	__u64	pp;			/* 0x01de */
	__u8	reserved1e6[2];		/* 0x01e6 */
	__u64	itdba;			/* 0x01e8 */
	__u8	reserved1f0[16];	/* 0x01f0 */
} __attribute__((packed));

struct kvm_s390_itdb {
	__u8	data[256];
} __packed;

struct sie_page {
	struct kvm_s390_sie_block sie_block;
	__u8 reserved200[1024];		/* 0x0200 */
	struct kvm_s390_itdb itdb;	/* 0x0600 */
	__u8 reserved700[2304];		/* 0x0700 */
} __packed;

struct kvm_vcpu_stat {
	u32 exit_userspace;
	u32 exit_null;
	u32 exit_external_request;
	u32 exit_external_interrupt;
	u32 exit_stop_request;
	u32 exit_validity;
	u32 exit_instruction;
	u32 halt_successful_poll;
	u32 halt_wakeup;
	u32 instruction_lctl;
	u32 instruction_lctlg;
	u32 instruction_stctl;
	u32 instruction_stctg;
	u32 exit_program_interruption;
	u32 exit_instr_and_program;
	u32 deliver_external_call;
	u32 deliver_emergency_signal;
	u32 deliver_service_signal;
	u32 deliver_virtio_interrupt;
	u32 deliver_stop_signal;
	u32 deliver_prefix_signal;
	u32 deliver_restart_signal;
	u32 deliver_program_int;
	u32 deliver_io_int;
	u32 exit_wait_state;
	u32 instruction_pfmf;
	u32 instruction_stidp;
	u32 instruction_spx;
	u32 instruction_stpx;
	u32 instruction_stap;
	u32 instruction_storage_key;
	u32 instruction_ipte_interlock;
	u32 instruction_stsch;
	u32 instruction_chsc;
	u32 instruction_stsi;
	u32 instruction_stfl;
	u32 instruction_tprot;
	u32 instruction_essa;
	u32 instruction_sigp_sense;
	u32 instruction_sigp_sense_running;
	u32 instruction_sigp_external_call;
	u32 instruction_sigp_emergency;
	u32 instruction_sigp_cond_emergency;
	u32 instruction_sigp_start;
	u32 instruction_sigp_stop;
	u32 instruction_sigp_stop_store_status;
	u32 instruction_sigp_store_status;
	u32 instruction_sigp_arch;
	u32 instruction_sigp_prefix;
	u32 instruction_sigp_restart;
	u32 instruction_sigp_init_cpu_reset;
	u32 instruction_sigp_cpu_reset;
	u32 instruction_sigp_unknown;
	u32 diagnose_10;
	u32 diagnose_44;
	u32 diagnose_9c;
};

#define PGM_OPERATION			0x01
#define PGM_PRIVILEGED_OP		0x02
#define PGM_EXECUTE			0x03
#define PGM_PROTECTION			0x04
#define PGM_ADDRESSING			0x05
#define PGM_SPECIFICATION		0x06
#define PGM_DATA			0x07
#define PGM_FIXED_POINT_OVERFLOW	0x08
#define PGM_FIXED_POINT_DIVIDE		0x09
#define PGM_DECIMAL_OVERFLOW		0x0a
#define PGM_DECIMAL_DIVIDE		0x0b
#define PGM_HFP_EXPONENT_OVERFLOW	0x0c
#define PGM_HFP_EXPONENT_UNDERFLOW	0x0d
#define PGM_HFP_SIGNIFICANCE		0x0e
#define PGM_HFP_DIVIDE			0x0f
#define PGM_SEGMENT_TRANSLATION		0x10
#define PGM_PAGE_TRANSLATION		0x11
#define PGM_TRANSLATION_SPEC		0x12
#define PGM_SPECIAL_OPERATION		0x13
#define PGM_OPERAND			0x15
#define PGM_TRACE_TABEL			0x16
#define PGM_SPACE_SWITCH		0x1c
#define PGM_HFP_SQUARE_ROOT		0x1d
#define PGM_PC_TRANSLATION_SPEC		0x1f
#define PGM_AFX_TRANSLATION		0x20
#define PGM_ASX_TRANSLATION		0x21
#define PGM_LX_TRANSLATION		0x22
#define PGM_EX_TRANSLATION		0x23
#define PGM_PRIMARY_AUTHORITY		0x24
#define PGM_SECONDARY_AUTHORITY		0x25
#define PGM_LFX_TRANSLATION		0x26
#define PGM_LSX_TRANSLATION		0x27
#define PGM_ALET_SPECIFICATION		0x28
#define PGM_ALEN_TRANSLATION		0x29
#define PGM_ALE_SEQUENCE		0x2a
#define PGM_ASTE_VALIDITY		0x2b
#define PGM_ASTE_SEQUENCE		0x2c
#define PGM_EXTENDED_AUTHORITY		0x2d
#define PGM_LSTE_SEQUENCE		0x2e
#define PGM_ASTE_INSTANCE		0x2f
#define PGM_STACK_FULL			0x30
#define PGM_STACK_EMPTY			0x31
#define PGM_STACK_SPECIFICATION		0x32
#define PGM_STACK_TYPE			0x33
#define PGM_STACK_OPERATION		0x34
#define PGM_ASCE_TYPE			0x38
#define PGM_REGION_FIRST_TRANS		0x39
#define PGM_REGION_SECOND_TRANS		0x3a
#define PGM_REGION_THIRD_TRANS		0x3b
#define PGM_MONITOR			0x40
#define PGM_PER				0x80
#define PGM_CRYPTO_OPERATION		0x119

/* irq types in order of priority */
enum irq_types {
	IRQ_PEND_MCHK_EX = 0,
	IRQ_PEND_SVC,
	IRQ_PEND_PROG,
	IRQ_PEND_MCHK_REP,
	IRQ_PEND_EXT_IRQ_KEY,
	IRQ_PEND_EXT_MALFUNC,
	IRQ_PEND_EXT_EMERGENCY,
	IRQ_PEND_EXT_EXTERNAL,
	IRQ_PEND_EXT_CLOCK_COMP,
	IRQ_PEND_EXT_CPU_TIMER,
	IRQ_PEND_EXT_TIMING,
	IRQ_PEND_EXT_SERVICE,
	IRQ_PEND_EXT_HOST,
	IRQ_PEND_PFAULT_INIT,
	IRQ_PEND_PFAULT_DONE,
	IRQ_PEND_VIRTIO,
	IRQ_PEND_IO_ISC_0,
	IRQ_PEND_IO_ISC_1,
	IRQ_PEND_IO_ISC_2,
	IRQ_PEND_IO_ISC_3,
	IRQ_PEND_IO_ISC_4,
	IRQ_PEND_IO_ISC_5,
	IRQ_PEND_IO_ISC_6,
	IRQ_PEND_IO_ISC_7,
	IRQ_PEND_SIGP_STOP,
	IRQ_PEND_RESTART,
	IRQ_PEND_SET_PREFIX,
	IRQ_PEND_COUNT
};

/*
 * Repressible (non-floating) machine check interrupts
 * subclass bits in MCIC
 */
#define MCHK_EXTD_BIT 58
#define MCHK_DEGR_BIT 56
#define MCHK_WARN_BIT 55
#define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \
		       (1UL << MCHK_EXTD_BIT) | \
		       (1UL << MCHK_WARN_BIT))

/* Exigent machine check interrupts subclass bits in MCIC */
#define MCHK_SD_BIT 63
#define MCHK_PD_BIT 62
#define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT))

#define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY)    | \
			   (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
			   (1UL << IRQ_PEND_EXT_CPU_TIMER)  | \
			   (1UL << IRQ_PEND_EXT_MALFUNC)    | \
			   (1UL << IRQ_PEND_EXT_EMERGENCY)  | \
			   (1UL << IRQ_PEND_EXT_EXTERNAL)   | \
			   (1UL << IRQ_PEND_EXT_TIMING)     | \
			   (1UL << IRQ_PEND_EXT_HOST)       | \
			   (1UL << IRQ_PEND_EXT_SERVICE)    | \
			   (1UL << IRQ_PEND_VIRTIO)         | \
			   (1UL << IRQ_PEND_PFAULT_INIT)    | \
			   (1UL << IRQ_PEND_PFAULT_DONE))

#define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \
			  (1UL << IRQ_PEND_IO_ISC_1) | \
			  (1UL << IRQ_PEND_IO_ISC_2) | \
			  (1UL << IRQ_PEND_IO_ISC_3) | \
			  (1UL << IRQ_PEND_IO_ISC_4) | \
			  (1UL << IRQ_PEND_IO_ISC_5) | \
			  (1UL << IRQ_PEND_IO_ISC_6) | \
			  (1UL << IRQ_PEND_IO_ISC_7))

#define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \
			    (1UL << IRQ_PEND_MCHK_EX))

struct kvm_s390_interrupt_info {
	struct list_head list;
	u64	type;
	union {
		struct kvm_s390_io_info io;
		struct kvm_s390_ext_info ext;
		struct kvm_s390_pgm_info pgm;
		struct kvm_s390_emerg_info emerg;
		struct kvm_s390_extcall_info extcall;
		struct kvm_s390_prefix_info prefix;
		struct kvm_s390_stop_info stop;
		struct kvm_s390_mchk_info mchk;
	};
};

struct kvm_s390_irq_payload {
	struct kvm_s390_io_info io;
	struct kvm_s390_ext_info ext;
	struct kvm_s390_pgm_info pgm;
	struct kvm_s390_emerg_info emerg;
	struct kvm_s390_extcall_info extcall;
	struct kvm_s390_prefix_info prefix;
	struct kvm_s390_stop_info stop;
	struct kvm_s390_mchk_info mchk;
};

struct kvm_s390_local_interrupt {
	spinlock_t lock;
	struct kvm_s390_float_interrupt *float_int;
	wait_queue_head_t *wq;
	atomic_t *cpuflags;
	DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
	struct kvm_s390_irq_payload irq;
	unsigned long pending_irqs;
};

struct kvm_s390_float_interrupt {
	spinlock_t lock;
	struct list_head list;
	atomic_t active;
	int next_rr_cpu;
	unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
	unsigned int irq_count;
};

struct kvm_hw_wp_info_arch {
	unsigned long addr;
	unsigned long phys_addr;
	int len;
	char *old_data;
};

struct kvm_hw_bp_info_arch {
	unsigned long addr;
	int len;
};

/*
 * Only the upper 16 bits of kvm_guest_debug->control are arch specific.
 * Further KVM_GUESTDBG flags which an be used from userspace can be found in
 * arch/s390/include/uapi/asm/kvm.h
 */
#define KVM_GUESTDBG_EXIT_PENDING 0x10000000

#define guestdbg_enabled(vcpu) \
		(vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
#define guestdbg_sstep_enabled(vcpu) \
		(vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
#define guestdbg_hw_bp_enabled(vcpu) \
		(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
#define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
		(vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))

struct kvm_guestdbg_info_arch {
	unsigned long cr0;
	unsigned long cr9;
	unsigned long cr10;
	unsigned long cr11;
	struct kvm_hw_bp_info_arch *hw_bp_info;
	struct kvm_hw_wp_info_arch *hw_wp_info;
	int nr_hw_bp;
	int nr_hw_wp;
	unsigned long last_bp;
};

struct kvm_vcpu_arch {
	struct kvm_s390_sie_block *sie_block;
	s390_fp_regs      host_fpregs;
	unsigned int      host_acrs[NUM_ACRS];
	s390_fp_regs      guest_fpregs;
	struct kvm_s390_local_interrupt local_int;
	struct hrtimer    ckc_timer;
	struct kvm_s390_pgm_info pgm;
	union  {
		struct cpuid	cpu_id;
		u64		stidp_data;
	};
	struct gmap *gmap;
	struct kvm_guestdbg_info_arch guestdbg;
	unsigned long pfault_token;
	unsigned long pfault_select;
	unsigned long pfault_compare;
};

struct kvm_vm_stat {
	u32 remote_tlb_flush;
};

struct kvm_arch_memory_slot {
};

struct s390_map_info {
	struct list_head list;
	__u64 guest_addr;
	__u64 addr;
	struct page *page;
};

struct s390_io_adapter {
	unsigned int id;
	int isc;
	bool maskable;
	bool masked;
	bool swap;
	struct rw_semaphore maps_lock;
	struct list_head maps;
	atomic_t nr_maps;
};

#define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
#define MAX_S390_ADAPTER_MAPS 256

/* maximum size of facilities and facility mask is 2k bytes */
#define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11)
#define S390_ARCH_FAC_LIST_SIZE_U64 \
	(S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64))
#define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE
#define S390_ARCH_FAC_MASK_SIZE_U64 \
	(S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))

struct kvm_s390_fac {
	/* facility list requested by guest */
	__u64 list[S390_ARCH_FAC_LIST_SIZE_U64];
	/* facility mask supported by kvm & hosting machine */
	__u64 mask[S390_ARCH_FAC_LIST_SIZE_U64];
};

struct kvm_s390_cpu_model {
	struct kvm_s390_fac *fac;
	struct cpuid cpu_id;
	unsigned short ibc;
};

struct kvm_s390_crypto {
	struct kvm_s390_crypto_cb *crycb;
	__u32 crycbd;
	__u8 aes_kw;
	__u8 dea_kw;
};

struct kvm_s390_crypto_cb {
	__u8    reserved00[72];                 /* 0x0000 */
	__u8    dea_wrapping_key_mask[24];      /* 0x0048 */
	__u8    aes_wrapping_key_mask[32];      /* 0x0060 */
	__u8    reserved80[128];                /* 0x0080 */
};

struct kvm_arch{
	struct sca_block *sca;
	debug_info_t *dbf;
	struct kvm_s390_float_interrupt float_int;
	struct kvm_device *flic;
	struct gmap *gmap;
	int css_support;
	int use_irqchip;
	int use_cmma;
	int user_cpu_state_ctrl;
	int user_sigp;
	struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
	wait_queue_head_t ipte_wq;
	int ipte_lock_count;
	struct mutex ipte_mutex;
	spinlock_t start_stop_lock;
	struct kvm_s390_cpu_model model;
	struct kvm_s390_crypto crypto;
	u64 epoch;
};

#define KVM_HVA_ERR_BAD		(-1UL)
#define KVM_HVA_ERR_RO_BAD	(-2UL)

static inline bool kvm_is_error_hva(unsigned long addr)
{
	return IS_ERR_VALUE(addr);
}

#define ASYNC_PF_PER_VCPU	64
struct kvm_arch_async_pf {
	unsigned long pfault_token;
};

bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);

void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
			       struct kvm_async_pf *work);

void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
				     struct kvm_async_pf *work);

void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
				 struct kvm_async_pf *work);

extern int sie64a(struct kvm_s390_sie_block *, u64 *);
extern char sie_exit;

static inline void kvm_arch_hardware_disable(void) {}
static inline void kvm_arch_check_processor_compat(void *rtn) {}
static inline void kvm_arch_exit(void) {}
static inline void kvm_arch_sync_events(struct kvm *kvm) {}
static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
static inline void kvm_arch_free_memslot(struct kvm *kvm,
		struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {}
static inline void kvm_arch_memslots_updated(struct kvm *kvm) {}
static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
		struct kvm_memory_slot *slot) {}

#endif
Commit	Line	Data
b0c632db	1	/*
a53c8fab	2	* definition for kernel virtual machines on s390
b0c632db	3	*
a53c8fab	4	* Copyright IBM Corp. 2008, 2009
b0c632db HC	5	*
	6	* This program is free software; you can redistribute it and/or modify
	7	* it under the terms of the GNU General Public License (version 2 only)
	8	* as published by the Free Software Foundation.
	9	*
	10	* Author(s): Carsten Otte <cotte@de.ibm.com>
	11	*/
	12
	13
	14	#ifndef ASM_KVM_HOST_H
	15	#define ASM_KVM_HOST_H
65647300 PB	16
65647300 PB	17	#include <linux/types.h>
ca872302 CB	18	#include <linux/hrtimer.h>
ca872302 CB	19	#include <linux/interrupt.h>
65647300	20	#include <linux/kvm_types.h>
b0c632db	21	#include <linux/kvm_host.h>
81aa8efe	22	#include <linux/kvm.h>
b0c632db	23	#include <asm/debug.h>
e86a6ed6	24	#include <asm/cpu.h>
841b91c5	25	#include <asm/isc.h>
b0c632db HC	26
b0c632db HC	27	#define KVM_MAX_VCPUS 64
bbacc0c1	28	#define KVM_USER_MEM_SLOTS 32
b0c632db	29
84223598 CH	30	/*
	31	* These seem to be used for allocating ->chip in the routing table,
	32	* which we don't use. 4096 is an out-of-thin-air value. If we need
	33	* to look at ->chip later on, we'll need to revisit this.
	34	*/
	35	#define KVM_NR_IRQCHIPS 1
	36	#define KVM_IRQCHIP_NUM_PINS 4096
	37
ea5f4969 DH	38	#define SIGP_CTRL_C 0x80
ea5f4969 DH	39	#define SIGP_CTRL_SCN_MASK 0x3f
4953919f	40
b0c632db	41	struct sca_entry {
ea5f4969 DH	42	__u8 reserved0;
	43	__u8 sigp_ctrl;
	44	__u16 reserved[3];
b0c632db HC	45	__u64 sda;
	46	__u64 reserved2[2];
	47	} __attribute__((packed));
	48
8a242234 HC	49	union ipte_control {
	50	unsigned long val;
	51	struct {
	52	unsigned long k : 1;
	53	unsigned long kh : 31;
	54	unsigned long kg : 32;
	55	};
	56	};
b0c632db HC	57
b0c632db HC	58	struct sca_block {
8a242234	59	union ipte_control ipte_control;
b0c632db HC	60	__u64 reserved[5];
	61	__u64 mcn;
	62	__u64 reserved2;
	63	struct sca_entry cpu[64];
	64	} __attribute__((packed));
	65
9e6dabef	66	#define CPUSTAT_STOPPED 0x80000000
b0c632db HC	67	#define CPUSTAT_WAIT 0x10000000
	68	#define CPUSTAT_ECALL_PEND 0x08000000
	69	#define CPUSTAT_STOP_INT 0x04000000
	70	#define CPUSTAT_IO_INT 0x02000000
	71	#define CPUSTAT_EXT_INT 0x01000000
	72	#define CPUSTAT_RUNNING 0x00800000
	73	#define CPUSTAT_RETAINED 0x00400000
	74	#define CPUSTAT_TIMING_SUB 0x00020000
	75	#define CPUSTAT_SIE_SUB 0x00010000
	76	#define CPUSTAT_RRF 0x00008000
	77	#define CPUSTAT_SLSV 0x00004000
	78	#define CPUSTAT_SLSR 0x00002000
	79	#define CPUSTAT_ZARCH 0x00000800
	80	#define CPUSTAT_MCDS 0x00000100
	81	#define CPUSTAT_SM 0x00000080
8ad35755	82	#define CPUSTAT_IBS 0x00000040
b0c632db	83	#define CPUSTAT_G 0x00000008
69d0d3a3	84	#define CPUSTAT_GED 0x00000004
b0c632db HC	85	#define CPUSTAT_J 0x00000002
	86	#define CPUSTAT_P 0x00000001
	87
180c12fb	88	struct kvm_s390_sie_block {
b0c632db	89	atomic_t cpuflags; /* 0x0000 */
fda902cb MM	90	__u32 : 1; /* 0x0004 */
fda902cb MM	91	__u32 prefix : 18;
658b6eda MM	92	__u32 : 1;
658b6eda MM	93	__u32 ibc : 12;
95d38fd0 CB	94	__u8 reserved08[4]; /* 0x0008 */
	95	#define PROG_IN_SIE (1<<0)
	96	__u32 prog0c; /* 0x000c */
49b99e1e CB	97	__u8 reserved10[16]; /* 0x0010 */
	98	#define PROG_BLOCK_SIE 0x00000001
	99	atomic_t prog20; /* 0x0020 */
	100	__u8 reserved24[4]; /* 0x0024 */
b0c632db HC	101	__u64 cputm; /* 0x0028 */
	102	__u64 ckc; /* 0x0030 */
	103	__u64 epoch; /* 0x0038 */
	104	__u8 reserved40[4]; /* 0x0040 */
ba5c1e9b	105	#define LCTL_CR0 0x8000
d8346b7d	106	#define LCTL_CR6 0x0200
27291e21 DH	107	#define LCTL_CR9 0x0040
	108	#define LCTL_CR10 0x0020
	109	#define LCTL_CR11 0x0010
48a3e950	110	#define LCTL_CR14 0x0002
b0c632db HC	111	__u16 lctl; /* 0x0044 */
b0c632db HC	112	__s16 icpua; /* 0x0046 */
27291e21 DH	113	#define ICTL_PINT 0x20000000
	114	#define ICTL_LPSW 0x00400000
	115	#define ICTL_STCTL 0x00040000
	116	#define ICTL_ISKE 0x00004000
	117	#define ICTL_SSKE 0x00002000
	118	#define ICTL_RRBE 0x00001000
5a5e6536	119	#define ICTL_TPROT 0x00000200
b0c632db HC	120	__u32 ictl; /* 0x0048 */
b0c632db HC	121	__u32 eca; /* 0x004c */
8712836b DH	122	#define ICPT_INST 0x04
	123	#define ICPT_PROGI 0x08
	124	#define ICPT_INSTPROGI 0x0C
	125	#define ICPT_OPEREXC 0x2C
	126	#define ICPT_PARTEXEC 0x38
	127	#define ICPT_IOINST 0x40
b0c632db	128	__u8 icptcode; /* 0x0050 */
04b41acd	129	__u8 icptstatus; /* 0x0051 */
b0c632db HC	130	__u16 ihcpu; /* 0x0052 */
	131	__u8 reserved54[2]; /* 0x0054 */
	132	__u16 ipa; /* 0x0056 */
	133	__u32 ipb; /* 0x0058 */
	134	__u32 scaoh; /* 0x005c */
	135	__u8 reserved60; /* 0x0060 */
	136	__u8 ecb; /* 0x0061 */
69d0d3a3	137	__u8 ecb2; /* 0x0062 */
a374e892 TK	138	#define ECB3_AES 0x04
	139	#define ECB3_DEA 0x08
	140	__u8 ecb3; /* 0x0063 */
b0c632db HC	141	__u32 scaol; /* 0x0064 */
	142	__u8 reserved68[4]; /* 0x0068 */
	143	__u32 todpr; /* 0x006c */
092670cd	144	__u8 reserved70[32]; /* 0x0070 */
b0c632db HC	145	psw_t gpsw; /* 0x0090 */
	146	__u64 gg14; /* 0x00a0 */
	147	__u64 gg15; /* 0x00a8 */
f14d82e0 TH	148	__u8 reservedb0[20]; /* 0x00b0 */
	149	__u16 extcpuaddr; /* 0x00c4 */
	150	__u16 eic; /* 0x00c6 */
	151	__u32 reservedc8; /* 0x00c8 */
439716a5 DH	152	__u16 pgmilc; /* 0x00cc */
	153	__u16 iprcc; /* 0x00ce */
	154	__u32 dxc; /* 0x00d0 */
	155	__u16 mcn; /* 0x00d4 */
	156	__u8 perc; /* 0x00d6 */
	157	__u8 peratmid; /* 0x00d7 */
	158	__u64 peraddr; /* 0x00d8 */
	159	__u8 eai; /* 0x00e0 */
	160	__u8 peraid; /* 0x00e1 */
	161	__u8 oai; /* 0x00e2 */
	162	__u8 armid; /* 0x00e3 */
	163	__u8 reservede4[4]; /* 0x00e4 */
	164	__u64 tecmc; /* 0x00e8 */
5102ee87 TK	165	__u8 reservedf0[12]; /* 0x00f0 */
5102ee87 TK	166	#define CRYCB_FORMAT1 0x00000001
45c9b47c	167	#define CRYCB_FORMAT2 0x00000003
5102ee87	168	__u32 crycbd; /* 0x00fc */
b0c632db HC	169	__u64 gcr[16]; /* 0x0100 */
b0c632db HC	170	__u64 gbea; /* 0x0180 */
ef50f7ac CB	171	__u8 reserved188[24]; /* 0x0188 */
ef50f7ac CB	172	__u32 fac; /* 0x01a0 */
b31288fa KW	173	__u8 reserved1a4[20]; /* 0x01a4 */
b31288fa KW	174	__u64 cbrlo; /* 0x01b8 */
7cbb39d4	175	__u8 reserved1c0[30]; /* 0x01c0 */
672550fb CB	176	__u64 pp; /* 0x01de */
672550fb CB	177	__u8 reserved1e6[2]; /* 0x01e6 */
7feb6bb8 MM	178	__u64 itdba; /* 0x01e8 */
7feb6bb8 MM	179	__u8 reserved1f0[16]; /* 0x01f0 */
b0c632db HC	180	} __attribute__((packed));
b0c632db HC	181
7feb6bb8 MM	182	struct kvm_s390_itdb {
	183	__u8 data[256];
	184	} __packed;
	185
	186	struct sie_page {
	187	struct kvm_s390_sie_block sie_block;
	188	__u8 reserved200[1024]; /* 0x0200 */
	189	struct kvm_s390_itdb itdb; /* 0x0600 */
	190	__u8 reserved700[2304]; /* 0x0700 */
	191	} __packed;
	192
b0c632db HC	193	struct kvm_vcpu_stat {
b0c632db HC	194	u32 exit_userspace;
0eaeafa1	195	u32 exit_null;
8f2abe6a CB	196	u32 exit_external_request;
	197	u32 exit_external_interrupt;
	198	u32 exit_stop_request;
	199	u32 exit_validity;
ba5c1e9b	200	u32 exit_instruction;
f7819512	201	u32 halt_successful_poll;
ce2e4f0b	202	u32 halt_wakeup;
ba5c1e9b	203	u32 instruction_lctl;
f5e10b09	204	u32 instruction_lctlg;
aba07508 DH	205	u32 instruction_stctl;
aba07508 DH	206	u32 instruction_stctg;
ba5c1e9b CO	207	u32 exit_program_interruption;
ba5c1e9b CO	208	u32 exit_instr_and_program;
7697e71f	209	u32 deliver_external_call;
ba5c1e9b CO	210	u32 deliver_emergency_signal;
	211	u32 deliver_service_signal;
	212	u32 deliver_virtio_interrupt;
	213	u32 deliver_stop_signal;
	214	u32 deliver_prefix_signal;
	215	u32 deliver_restart_signal;
	216	u32 deliver_program_int;
d8346b7d	217	u32 deliver_io_int;
ba5c1e9b	218	u32 exit_wait_state;
69d0d3a3	219	u32 instruction_pfmf;
453423dc CB	220	u32 instruction_stidp;
	221	u32 instruction_spx;
	222	u32 instruction_stpx;
	223	u32 instruction_stap;
	224	u32 instruction_storage_key;
8a242234	225	u32 instruction_ipte_interlock;
453423dc CB	226	u32 instruction_stsch;
	227	u32 instruction_chsc;
	228	u32 instruction_stsi;
	229	u32 instruction_stfl;
bb25b9ba	230	u32 instruction_tprot;
b31288fa	231	u32 instruction_essa;
5288fbf0	232	u32 instruction_sigp_sense;
bd59d3a4	233	u32 instruction_sigp_sense_running;
7697e71f	234	u32 instruction_sigp_external_call;
5288fbf0	235	u32 instruction_sigp_emergency;
42cb0c9f DH	236	u32 instruction_sigp_cond_emergency;
42cb0c9f DH	237	u32 instruction_sigp_start;
5288fbf0	238	u32 instruction_sigp_stop;
42cb0c9f DH	239	u32 instruction_sigp_stop_store_status;
42cb0c9f DH	240	u32 instruction_sigp_store_status;
5288fbf0 CB	241	u32 instruction_sigp_arch;
	242	u32 instruction_sigp_prefix;
	243	u32 instruction_sigp_restart;
42cb0c9f DH	244	u32 instruction_sigp_init_cpu_reset;
	245	u32 instruction_sigp_cpu_reset;
	246	u32 instruction_sigp_unknown;
388186bc	247	u32 diagnose_10;
e28acfea	248	u32 diagnose_44;
41628d33	249	u32 diagnose_9c;
b0c632db HC	250	};
b0c632db HC	251
bcd84683 JF	252	#define PGM_OPERATION 0x01
	253	#define PGM_PRIVILEGED_OP 0x02
	254	#define PGM_EXECUTE 0x03
	255	#define PGM_PROTECTION 0x04
	256	#define PGM_ADDRESSING 0x05
	257	#define PGM_SPECIFICATION 0x06
	258	#define PGM_DATA 0x07
	259	#define PGM_FIXED_POINT_OVERFLOW 0x08
	260	#define PGM_FIXED_POINT_DIVIDE 0x09
	261	#define PGM_DECIMAL_OVERFLOW 0x0a
	262	#define PGM_DECIMAL_DIVIDE 0x0b
	263	#define PGM_HFP_EXPONENT_OVERFLOW 0x0c
	264	#define PGM_HFP_EXPONENT_UNDERFLOW 0x0d
	265	#define PGM_HFP_SIGNIFICANCE 0x0e
	266	#define PGM_HFP_DIVIDE 0x0f
	267	#define PGM_SEGMENT_TRANSLATION 0x10
	268	#define PGM_PAGE_TRANSLATION 0x11
	269	#define PGM_TRANSLATION_SPEC 0x12
	270	#define PGM_SPECIAL_OPERATION 0x13
	271	#define PGM_OPERAND 0x15
	272	#define PGM_TRACE_TABEL 0x16
	273	#define PGM_SPACE_SWITCH 0x1c
	274	#define PGM_HFP_SQUARE_ROOT 0x1d
	275	#define PGM_PC_TRANSLATION_SPEC 0x1f
	276	#define PGM_AFX_TRANSLATION 0x20
	277	#define PGM_ASX_TRANSLATION 0x21
	278	#define PGM_LX_TRANSLATION 0x22
	279	#define PGM_EX_TRANSLATION 0x23
	280	#define PGM_PRIMARY_AUTHORITY 0x24
	281	#define PGM_SECONDARY_AUTHORITY 0x25
	282	#define PGM_LFX_TRANSLATION 0x26
	283	#define PGM_LSX_TRANSLATION 0x27
	284	#define PGM_ALET_SPECIFICATION 0x28
	285	#define PGM_ALEN_TRANSLATION 0x29
	286	#define PGM_ALE_SEQUENCE 0x2a
	287	#define PGM_ASTE_VALIDITY 0x2b
	288	#define PGM_ASTE_SEQUENCE 0x2c
	289	#define PGM_EXTENDED_AUTHORITY 0x2d
	290	#define PGM_LSTE_SEQUENCE 0x2e
	291	#define PGM_ASTE_INSTANCE 0x2f
	292	#define PGM_STACK_FULL 0x30
	293	#define PGM_STACK_EMPTY 0x31
	294	#define PGM_STACK_SPECIFICATION 0x32
	295	#define PGM_STACK_TYPE 0x33
	296	#define PGM_STACK_OPERATION 0x34
	297	#define PGM_ASCE_TYPE 0x38
	298	#define PGM_REGION_FIRST_TRANS 0x39
	299	#define PGM_REGION_SECOND_TRANS 0x3a
	300	#define PGM_REGION_THIRD_TRANS 0x3b
	301	#define PGM_MONITOR 0x40
	302	#define PGM_PER 0x80
	303	#define PGM_CRYPTO_OPERATION 0x119
ba5c1e9b	304
c0e6159d JF	305	/* irq types in order of priority */
	306	enum irq_types {
	307	IRQ_PEND_MCHK_EX = 0,
	308	IRQ_PEND_SVC,
	309	IRQ_PEND_PROG,
	310	IRQ_PEND_MCHK_REP,
	311	IRQ_PEND_EXT_IRQ_KEY,
	312	IRQ_PEND_EXT_MALFUNC,
	313	IRQ_PEND_EXT_EMERGENCY,
	314	IRQ_PEND_EXT_EXTERNAL,
	315	IRQ_PEND_EXT_CLOCK_COMP,
	316	IRQ_PEND_EXT_CPU_TIMER,
	317	IRQ_PEND_EXT_TIMING,
	318	IRQ_PEND_EXT_SERVICE,
	319	IRQ_PEND_EXT_HOST,
	320	IRQ_PEND_PFAULT_INIT,
	321	IRQ_PEND_PFAULT_DONE,
	322	IRQ_PEND_VIRTIO,
	323	IRQ_PEND_IO_ISC_0,
	324	IRQ_PEND_IO_ISC_1,
	325	IRQ_PEND_IO_ISC_2,
	326	IRQ_PEND_IO_ISC_3,
	327	IRQ_PEND_IO_ISC_4,
	328	IRQ_PEND_IO_ISC_5,
	329	IRQ_PEND_IO_ISC_6,
	330	IRQ_PEND_IO_ISC_7,
	331	IRQ_PEND_SIGP_STOP,
	332	IRQ_PEND_RESTART,
	333	IRQ_PEND_SET_PREFIX,
	334	IRQ_PEND_COUNT
	335	};
	336
	337	/*
	338	* Repressible (non-floating) machine check interrupts
	339	* subclass bits in MCIC
	340	*/
	341	#define MCHK_EXTD_BIT 58
	342	#define MCHK_DEGR_BIT 56
	343	#define MCHK_WARN_BIT 55
	344	#define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) \| \
	345	(1UL << MCHK_EXTD_BIT) \| \
	346	(1UL << MCHK_WARN_BIT))
	347
	348	/* Exigent machine check interrupts subclass bits in MCIC */
	349	#define MCHK_SD_BIT 63
	350	#define MCHK_PD_BIT 62
	351	#define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) \| (1UL << MCHK_PD_BIT))
	352
	353	#define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY) \| \
	354	(1UL << IRQ_PEND_EXT_CLOCK_COMP) \| \
	355	(1UL << IRQ_PEND_EXT_CPU_TIMER) \| \
	356	(1UL << IRQ_PEND_EXT_MALFUNC) \| \
	357	(1UL << IRQ_PEND_EXT_EMERGENCY) \| \
	358	(1UL << IRQ_PEND_EXT_EXTERNAL) \| \
	359	(1UL << IRQ_PEND_EXT_TIMING) \| \
	360	(1UL << IRQ_PEND_EXT_HOST) \| \
	361	(1UL << IRQ_PEND_EXT_SERVICE) \| \
	362	(1UL << IRQ_PEND_VIRTIO) \| \
	363	(1UL << IRQ_PEND_PFAULT_INIT) \| \
	364	(1UL << IRQ_PEND_PFAULT_DONE))
	365
	366	#define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) \| \
	367	(1UL << IRQ_PEND_IO_ISC_1) \| \
	368	(1UL << IRQ_PEND_IO_ISC_2) \| \
369	(1UL << IRQ_PEND_IO_ISC_3) \| \
370	(1UL << IRQ_PEND_IO_ISC_4) \| \
371	(1UL << IRQ_PEND_IO_ISC_5) \| \
372	(1UL << IRQ_PEND_IO_ISC_6) \| \
373	(1UL << IRQ_PEND_IO_ISC_7))
374
375	#define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) \| \
376	(1UL << IRQ_PEND_MCHK_EX))
377
180c12fb	378	struct kvm_s390_interrupt_info {
ba5c1e9b CO	379	struct list_head list;
	380	u64 type;
	381	union {
180c12fb CB	382	struct kvm_s390_io_info io;
	383	struct kvm_s390_ext_info ext;
	384	struct kvm_s390_pgm_info pgm;
8bb3a2eb	385	struct kvm_s390_emerg_info emerg;
7697e71f	386	struct kvm_s390_extcall_info extcall;
180c12fb	387	struct kvm_s390_prefix_info prefix;
2822545f	388	struct kvm_s390_stop_info stop;
48a3e950	389	struct kvm_s390_mchk_info mchk;
ba5c1e9b CO	390	};
	391	};
	392
c0e6159d JF	393	struct kvm_s390_irq_payload {
	394	struct kvm_s390_io_info io;
	395	struct kvm_s390_ext_info ext;
	396	struct kvm_s390_pgm_info pgm;
	397	struct kvm_s390_emerg_info emerg;
	398	struct kvm_s390_extcall_info extcall;
	399	struct kvm_s390_prefix_info prefix;
2822545f	400	struct kvm_s390_stop_info stop;
c0e6159d JF	401	struct kvm_s390_mchk_info mchk;
	402	};
	403
180c12fb	404	struct kvm_s390_local_interrupt {
ba5c1e9b	405	spinlock_t lock;
180c12fb	406	struct kvm_s390_float_interrupt *float_int;
d0321a24	407	wait_queue_head_t *wq;
5288fbf0	408	atomic_t *cpuflags;
c0e6159d JF	409	DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
	410	struct kvm_s390_irq_payload irq;
	411	unsigned long pending_irqs;
ba5c1e9b CO	412	};
ba5c1e9b CO	413
180c12fb	414	struct kvm_s390_float_interrupt {
ba5c1e9b CO	415	spinlock_t lock;
	416	struct list_head list;
	417	atomic_t active;
	418	int next_rr_cpu;
609433fb	419	unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
a91b8ebe	420	unsigned int irq_count;
ba5c1e9b CO	421	};
ba5c1e9b CO	422
27291e21 DH	423	struct kvm_hw_wp_info_arch {
	424	unsigned long addr;
	425	unsigned long phys_addr;
	426	int len;
	427	char *old_data;
	428	};
	429
	430	struct kvm_hw_bp_info_arch {
	431	unsigned long addr;
	432	int len;
	433	};
	434
	435	/*
	436	* Only the upper 16 bits of kvm_guest_debug->control are arch specific.
	437	* Further KVM_GUESTDBG flags which an be used from userspace can be found in
	438	* arch/s390/include/uapi/asm/kvm.h
	439	*/
	440	#define KVM_GUESTDBG_EXIT_PENDING 0x10000000
	441
	442	#define guestdbg_enabled(vcpu) \
	443	(vcpu->guest_debug & KVM_GUESTDBG_ENABLE)
	444	#define guestdbg_sstep_enabled(vcpu) \
	445	(vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
	446	#define guestdbg_hw_bp_enabled(vcpu) \
	447	(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)
	448	#define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
	449	(vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))
	450
	451	struct kvm_guestdbg_info_arch {
	452	unsigned long cr0;
	453	unsigned long cr9;
	454	unsigned long cr10;
	455	unsigned long cr11;
	456	struct kvm_hw_bp_info_arch *hw_bp_info;
	457	struct kvm_hw_wp_info_arch *hw_wp_info;
	458	int nr_hw_bp;
	459	int nr_hw_wp;
	460	unsigned long last_bp;
	461	};
ba5c1e9b	462
b0c632db	463	struct kvm_vcpu_arch {
180c12fb	464	struct kvm_s390_sie_block *sie_block;
b0c632db HC	465	s390_fp_regs host_fpregs;
	466	unsigned int host_acrs[NUM_ACRS];
	467	s390_fp_regs guest_fpregs;
180c12fb	468	struct kvm_s390_local_interrupt local_int;
ca872302	469	struct hrtimer ckc_timer;
1b0462e5	470	struct kvm_s390_pgm_info pgm;
453423dc	471	union {
e86a6ed6 HC	472	struct cpuid cpu_id;
e86a6ed6 HC	473	u64 stidp_data;
453423dc	474	};
598841ca	475	struct gmap *gmap;
27291e21	476	struct kvm_guestdbg_info_arch guestdbg;
3c038e6b DD	477	unsigned long pfault_token;
	478	unsigned long pfault_select;
	479	unsigned long pfault_compare;
b0c632db HC	480	};
	481
	482	struct kvm_vm_stat {
	483	u32 remote_tlb_flush;
	484	};
	485
db3fe4eb TY	486	struct kvm_arch_memory_slot {
	487	};
	488
841b91c5 CH	489	struct s390_map_info {
	490	struct list_head list;
	491	__u64 guest_addr;
	492	__u64 addr;
	493	struct page *page;
	494	};
	495
	496	struct s390_io_adapter {
	497	unsigned int id;
	498	int isc;
	499	bool maskable;
	500	bool masked;
	501	bool swap;
	502	struct rw_semaphore maps_lock;
	503	struct list_head maps;
	504	atomic_t nr_maps;
	505	};
	506
	507	#define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)
	508	#define MAX_S390_ADAPTER_MAPS 256
	509
9d8d5786 MM	510	/* maximum size of facilities and facility mask is 2k bytes */
	511	#define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11)
	512	#define S390_ARCH_FAC_LIST_SIZE_U64 \
	513	(S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64))
	514	#define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE
	515	#define S390_ARCH_FAC_MASK_SIZE_U64 \
	516	(S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))
	517
981467c9 MM	518	struct kvm_s390_fac {
	519	/* facility list requested by guest */
	520	__u64 list[S390_ARCH_FAC_LIST_SIZE_U64];
	521	/* facility mask supported by kvm & hosting machine */
	522	__u64 mask[S390_ARCH_FAC_LIST_SIZE_U64];
9d8d5786 MM	523	};
	524
	525	struct kvm_s390_cpu_model {
981467c9	526	struct kvm_s390_fac *fac;
9d8d5786	527	struct cpuid cpu_id;
658b6eda	528	unsigned short ibc;
9d8d5786 MM	529	};
9d8d5786 MM	530
5102ee87 TK	531	struct kvm_s390_crypto {
	532	struct kvm_s390_crypto_cb *crycb;
	533	__u32 crycbd;
a374e892 TK	534	__u8 aes_kw;
a374e892 TK	535	__u8 dea_kw;
5102ee87 TK	536	};
	537
	538	struct kvm_s390_crypto_cb {
a374e892 TK	539	__u8 reserved00[72]; /* 0x0000 */
	540	__u8 dea_wrapping_key_mask[24]; /* 0x0048 */
	541	__u8 aes_wrapping_key_mask[32]; /* 0x0060 */
45c9b47c	542	__u8 reserved80[128]; /* 0x0080 */
5102ee87 TK	543	};
5102ee87 TK	544
b0c632db	545	struct kvm_arch{
b0c632db HC	546	struct sca_block *sca;
b0c632db HC	547	debug_info_t *dbf;
180c12fb	548	struct kvm_s390_float_interrupt float_int;
c05c4186	549	struct kvm_device *flic;
598841ca	550	struct gmap *gmap;
fa6b7fe9	551	int css_support;
84223598	552	int use_irqchip;
b31605c1	553	int use_cmma;
6352e4d2	554	int user_cpu_state_ctrl;
2444b352	555	int user_sigp;
841b91c5	556	struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
8a242234	557	wait_queue_head_t ipte_wq;
a6b7e459 TH	558	int ipte_lock_count;
a6b7e459 TH	559	struct mutex ipte_mutex;
8ad35755	560	spinlock_t start_stop_lock;
9d8d5786	561	struct kvm_s390_cpu_model model;
5102ee87	562	struct kvm_s390_crypto crypto;
72f25020	563	u64 epoch;
b0c632db HC	564	};
b0c632db HC	565
bf640876 DD	566	#define KVM_HVA_ERR_BAD (-1UL)
	567	#define KVM_HVA_ERR_RO_BAD (-2UL)
	568
	569	static inline bool kvm_is_error_hva(unsigned long addr)
	570	{
	571	return IS_ERR_VALUE(addr);
	572	}
	573
3c038e6b	574	#define ASYNC_PF_PER_VCPU 64
3c038e6b DD	575	struct kvm_arch_async_pf {
	576	unsigned long pfault_token;
	577	};
	578
	579	bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
	580
	581	void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
	582	struct kvm_async_pf *work);
	583
	584	void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
	585	struct kvm_async_pf *work);
	586
	587	void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
	588	struct kvm_async_pf *work);
	589
5a32c1af	590	extern int sie64a(struct kvm_s390_sie_block , u64 );
b764bb1c	591	extern char sie_exit;
0865e636	592
13a34e06	593	static inline void kvm_arch_hardware_disable(void) {}
0865e636 RK	594	static inline void kvm_arch_check_processor_compat(void *rtn) {}
	595	static inline void kvm_arch_exit(void) {}
	596	static inline void kvm_arch_sync_events(struct kvm *kvm) {}
	597	static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}
	598	static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}
	599	static inline void kvm_arch_free_memslot(struct kvm *kvm,
	600	struct kvm_memory_slot free, struct kvm_memory_slot dont) {}
	601	static inline void kvm_arch_memslots_updated(struct kvm *kvm) {}
	602	static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}
	603	static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
	604	struct kvm_memory_slot *slot) {}
	605
b0c632db	606	#endif