[linux-2.6-block.git] / arch / s390 / include / asm / kvm_host.h

/*
 * asm-s390/kvm_host.h - definition for kernel virtual machines on s390
 *
 * Copyright IBM Corp. 2008
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License (version 2 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/hrtimer.h>
#include <linux/interrupt.h>
#include <linux/kvm_host.h>
#include <asm/debug.h>
#include <asm/cpuid.h>

#define KVM_MAX_VCPUS 64
#define KVM_MEMORY_SLOTS 32
/* memory slots that does not exposed to userspace */
#define KVM_PRIVATE_MEM_SLOTS 4

struct sca_entry {
	atomic_t scn;
	__u64	reserved;
	__u64	sda;
	__u64	reserved2[2];
} __attribute__((packed));


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

#define KVM_PAGES_PER_HPAGE 256

#define CPUSTAT_HOST       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_G          0x00000008
#define CPUSTAT_J          0x00000002
#define CPUSTAT_P          0x00000001

struct kvm_s390_sie_block {
	atomic_t cpuflags;		/* 0x0000 */
	__u32	prefix;			/* 0x0004 */
	__u8	reserved8[32];		/* 0x0008 */
	__u64	cputm;			/* 0x0028 */
	__u64	ckc;			/* 0x0030 */
	__u64	epoch;			/* 0x0038 */
	__u8	reserved40[4];		/* 0x0040 */
#define LCTL_CR0	0x8000
	__u16   lctl;			/* 0x0044 */
	__s16	icpua;			/* 0x0046 */
	__u32	ictl;			/* 0x0048 */
	__u32	eca;			/* 0x004c */
	__u8	icptcode;		/* 0x0050 */
	__u8	reserved51;		/* 0x0051 */
	__u16	ihcpu;			/* 0x0052 */
	__u8	reserved54[2];		/* 0x0054 */
	__u16	ipa;			/* 0x0056 */
	__u32	ipb;			/* 0x0058 */
	__u32	scaoh;			/* 0x005c */
	__u8	reserved60;		/* 0x0060 */
	__u8	ecb;			/* 0x0061 */
	__u8	reserved62[2];		/* 0x0062 */
	__u32	scaol;			/* 0x0064 */
	__u8	reserved68[4];		/* 0x0068 */
	__u32	todpr;			/* 0x006c */
	__u8	reserved70[16];		/* 0x0070 */
	__u64	gmsor;			/* 0x0080 */
	__u64	gmslm;			/* 0x0088 */
	psw_t	gpsw;			/* 0x0090 */
	__u64	gg14;			/* 0x00a0 */
	__u64	gg15;			/* 0x00a8 */
	__u8	reservedb0[30];		/* 0x00b0 */
	__u16   iprcc;			/* 0x00ce */
	__u8	reservedd0[48];		/* 0x00d0 */
	__u64	gcr[16];		/* 0x0100 */
	__u64	gbea;			/* 0x0180 */
	__u8	reserved188[24];	/* 0x0188 */
	__u32	fac;			/* 0x01a0 */
	__u8	reserved1a4[92];	/* 0x01a4 */
} __attribute__((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 instruction_lctl;
	u32 instruction_lctlg;
	u32 exit_program_interruption;
	u32 exit_instr_and_program;
	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 exit_wait_state;
	u32 instruction_stidp;
	u32 instruction_spx;
	u32 instruction_stpx;
	u32 instruction_stap;
	u32 instruction_storage_key;
	u32 instruction_stsch;
	u32 instruction_chsc;
	u32 instruction_stsi;
	u32 instruction_stfl;
	u32 instruction_sigp_sense;
	u32 instruction_sigp_emergency;
	u32 instruction_sigp_stop;
	u32 instruction_sigp_arch;
	u32 instruction_sigp_prefix;
	u32 instruction_sigp_restart;
	u32 diagnose_44;
};

struct kvm_s390_io_info {
	__u16        subchannel_id;            /* 0x0b8 */
	__u16        subchannel_nr;            /* 0x0ba */
	__u32        io_int_parm;              /* 0x0bc */
	__u32        io_int_word;              /* 0x0c0 */
};

struct kvm_s390_ext_info {
	__u32 ext_params;
	__u64 ext_params2;
};

#define PGM_OPERATION            0x01
#define PGM_PRIVILEGED_OPERATION 0x02
#define PGM_EXECUTE              0x03
#define PGM_PROTECTION           0x04
#define PGM_ADDRESSING           0x05
#define PGM_SPECIFICATION        0x06
#define PGM_DATA                 0x07

struct kvm_s390_pgm_info {
	__u16 code;
};

struct kvm_s390_prefix_info {
	__u32 address;
};

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_prefix_info prefix;
	};
};

/* for local_interrupt.action_flags */
#define ACTION_STORE_ON_STOP		(1<<0)
#define ACTION_STOP_ON_STOP		(1<<1)
#define ACTION_RELOADVCPU_ON_STOP	(1<<2)

struct kvm_s390_local_interrupt {
	spinlock_t lock;
	struct list_head list;
	atomic_t active;
	struct kvm_s390_float_interrupt *float_int;
	int timer_due; /* event indicator for waitqueue below */
	wait_queue_head_t wq;
	atomic_t *cpuflags;
	unsigned int action_bits;
};

struct kvm_s390_float_interrupt {
	spinlock_t lock;
	struct list_head list;
	atomic_t active;
	int next_rr_cpu;
	unsigned long idle_mask [(64 + sizeof(long) - 1) / sizeof(long)];
	struct kvm_s390_local_interrupt *local_int[64];
};


struct kvm_vcpu_arch {
	struct kvm_s390_sie_block *sie_block;
	unsigned long	  guest_gprs[16];
	s390_fp_regs      host_fpregs;
	unsigned int      host_acrs[NUM_ACRS];
	s390_fp_regs      guest_fpregs;
	unsigned int      guest_acrs[NUM_ACRS];
	struct kvm_s390_local_interrupt local_int;
	struct hrtimer    ckc_timer;
	struct tasklet_struct tasklet;
	union  {
		cpuid_t	  cpu_id;
		u64	  stidp_data;
	};
};

struct kvm_vm_stat {
	u32 remote_tlb_flush;
};

struct kvm_arch{
	unsigned long guest_origin;
	unsigned long guest_memsize;
	struct sca_block *sca;
	debug_info_t *dbf;
	struct kvm_s390_float_interrupt float_int;
};

extern int sie64a(struct kvm_s390_sie_block *, unsigned long *);
#endif
Commit	Line	Data
b0c632db HC	1	/*
	2	* asm-s390/kvm_host.h - definition for kernel virtual machines on s390
	3	*
	4	* Copyright IBM Corp. 2008
	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
ca872302 CB	16	#include <linux/hrtimer.h>
ca872302 CB	17	#include <linux/interrupt.h>
b0c632db HC	18	#include <linux/kvm_host.h>
b0c632db HC	19	#include <asm/debug.h>
25097bf1	20	#include <asm/cpuid.h>
b0c632db HC	21
	22	#define KVM_MAX_VCPUS 64
	23	#define KVM_MEMORY_SLOTS 32
	24	/* memory slots that does not exposed to userspace */
	25	#define KVM_PRIVATE_MEM_SLOTS 4
	26
b0c632db HC	27	struct sca_entry {
	28	atomic_t scn;
	29	__u64 reserved;
	30	__u64 sda;
	31	__u64 reserved2[2];
	32	} __attribute__((packed));
	33
	34
	35	struct sca_block {
	36	__u64 ipte_control;
	37	__u64 reserved[5];
	38	__u64 mcn;
	39	__u64 reserved2;
	40	struct sca_entry cpu[64];
	41	} __attribute__((packed));
	42
	43	#define KVM_PAGES_PER_HPAGE 256
	44
	45	#define CPUSTAT_HOST 0x80000000
	46	#define CPUSTAT_WAIT 0x10000000
	47	#define CPUSTAT_ECALL_PEND 0x08000000
	48	#define CPUSTAT_STOP_INT 0x04000000
	49	#define CPUSTAT_IO_INT 0x02000000
	50	#define CPUSTAT_EXT_INT 0x01000000
	51	#define CPUSTAT_RUNNING 0x00800000
	52	#define CPUSTAT_RETAINED 0x00400000
	53	#define CPUSTAT_TIMING_SUB 0x00020000
	54	#define CPUSTAT_SIE_SUB 0x00010000
	55	#define CPUSTAT_RRF 0x00008000
	56	#define CPUSTAT_SLSV 0x00004000
	57	#define CPUSTAT_SLSR 0x00002000
	58	#define CPUSTAT_ZARCH 0x00000800
	59	#define CPUSTAT_MCDS 0x00000100
	60	#define CPUSTAT_SM 0x00000080
	61	#define CPUSTAT_G 0x00000008
	62	#define CPUSTAT_J 0x00000002
	63	#define CPUSTAT_P 0x00000001
	64
180c12fb	65	struct kvm_s390_sie_block {
b0c632db HC	66	atomic_t cpuflags; /* 0x0000 */
	67	__u32 prefix; /* 0x0004 */
	68	__u8 reserved8[32]; /* 0x0008 */
	69	__u64 cputm; /* 0x0028 */
	70	__u64 ckc; /* 0x0030 */
	71	__u64 epoch; /* 0x0038 */
	72	__u8 reserved40[4]; /* 0x0040 */
ba5c1e9b	73	#define LCTL_CR0 0x8000
b0c632db HC	74	__u16 lctl; /* 0x0044 */
	75	__s16 icpua; /* 0x0046 */
	76	__u32 ictl; /* 0x0048 */
	77	__u32 eca; /* 0x004c */
	78	__u8 icptcode; /* 0x0050 */
	79	__u8 reserved51; /* 0x0051 */
	80	__u16 ihcpu; /* 0x0052 */
	81	__u8 reserved54[2]; /* 0x0054 */
	82	__u16 ipa; /* 0x0056 */
	83	__u32 ipb; /* 0x0058 */
	84	__u32 scaoh; /* 0x005c */
	85	__u8 reserved60; /* 0x0060 */
	86	__u8 ecb; /* 0x0061 */
	87	__u8 reserved62[2]; /* 0x0062 */
	88	__u32 scaol; /* 0x0064 */
	89	__u8 reserved68[4]; /* 0x0068 */
	90	__u32 todpr; /* 0x006c */
	91	__u8 reserved70[16]; /* 0x0070 */
	92	__u64 gmsor; /* 0x0080 */
	93	__u64 gmslm; /* 0x0088 */
	94	psw_t gpsw; /* 0x0090 */
	95	__u64 gg14; /* 0x00a0 */
	96	__u64 gg15; /* 0x00a8 */
e28acfea CB	97	__u8 reservedb0[30]; /* 0x00b0 */
	98	__u16 iprcc; /* 0x00ce */
	99	__u8 reservedd0[48]; /* 0x00d0 */
b0c632db HC	100	__u64 gcr[16]; /* 0x0100 */
b0c632db HC	101	__u64 gbea; /* 0x0180 */
ef50f7ac CB	102	__u8 reserved188[24]; /* 0x0188 */
	103	__u32 fac; /* 0x01a0 */
	104	__u8 reserved1a4[92]; /* 0x01a4 */
b0c632db HC	105	} __attribute__((packed));
	106
	107	struct kvm_vcpu_stat {
	108	u32 exit_userspace;
0eaeafa1	109	u32 exit_null;
8f2abe6a CB	110	u32 exit_external_request;
	111	u32 exit_external_interrupt;
	112	u32 exit_stop_request;
	113	u32 exit_validity;
ba5c1e9b CO	114	u32 exit_instruction;
ba5c1e9b CO	115	u32 instruction_lctl;
f5e10b09	116	u32 instruction_lctlg;
ba5c1e9b CO	117	u32 exit_program_interruption;
	118	u32 exit_instr_and_program;
	119	u32 deliver_emergency_signal;
	120	u32 deliver_service_signal;
	121	u32 deliver_virtio_interrupt;
	122	u32 deliver_stop_signal;
	123	u32 deliver_prefix_signal;
	124	u32 deliver_restart_signal;
	125	u32 deliver_program_int;
	126	u32 exit_wait_state;
453423dc CB	127	u32 instruction_stidp;
	128	u32 instruction_spx;
	129	u32 instruction_stpx;
	130	u32 instruction_stap;
	131	u32 instruction_storage_key;
	132	u32 instruction_stsch;
	133	u32 instruction_chsc;
	134	u32 instruction_stsi;
	135	u32 instruction_stfl;
5288fbf0 CB	136	u32 instruction_sigp_sense;
	137	u32 instruction_sigp_emergency;
	138	u32 instruction_sigp_stop;
	139	u32 instruction_sigp_arch;
	140	u32 instruction_sigp_prefix;
	141	u32 instruction_sigp_restart;
e28acfea	142	u32 diagnose_44;
b0c632db HC	143	};
b0c632db HC	144
180c12fb	145	struct kvm_s390_io_info {
ba5c1e9b CO	146	__u16 subchannel_id; /* 0x0b8 */
	147	__u16 subchannel_nr; /* 0x0ba */
	148	__u32 io_int_parm; /* 0x0bc */
	149	__u32 io_int_word; /* 0x0c0 */
	150	};
	151
180c12fb	152	struct kvm_s390_ext_info {
ba5c1e9b CO	153	__u32 ext_params;
	154	__u64 ext_params2;
	155	};
	156
	157	#define PGM_OPERATION 0x01
	158	#define PGM_PRIVILEGED_OPERATION 0x02
	159	#define PGM_EXECUTE 0x03
	160	#define PGM_PROTECTION 0x04
	161	#define PGM_ADDRESSING 0x05
	162	#define PGM_SPECIFICATION 0x06
	163	#define PGM_DATA 0x07
	164
180c12fb	165	struct kvm_s390_pgm_info {
ba5c1e9b CO	166	__u16 code;
	167	};
	168
180c12fb	169	struct kvm_s390_prefix_info {
ba5c1e9b CO	170	__u32 address;
	171	};
	172
180c12fb	173	struct kvm_s390_interrupt_info {
ba5c1e9b CO	174	struct list_head list;
	175	u64 type;
	176	union {
180c12fb CB	177	struct kvm_s390_io_info io;
	178	struct kvm_s390_ext_info ext;
	179	struct kvm_s390_pgm_info pgm;
	180	struct kvm_s390_prefix_info prefix;
ba5c1e9b CO	181	};
	182	};
	183
5288fbf0	184	/* for local_interrupt.action_flags */
9ace903d CE	185	#define ACTION_STORE_ON_STOP (1<<0)
	186	#define ACTION_STOP_ON_STOP (1<<1)
	187	#define ACTION_RELOADVCPU_ON_STOP (1<<2)
5288fbf0	188
180c12fb	189	struct kvm_s390_local_interrupt {
ba5c1e9b CO	190	spinlock_t lock;
	191	struct list_head list;
	192	atomic_t active;
180c12fb	193	struct kvm_s390_float_interrupt *float_int;
ba5c1e9b CO	194	int timer_due; /* event indicator for waitqueue below */
ba5c1e9b CO	195	wait_queue_head_t wq;
5288fbf0 CB	196	atomic_t *cpuflags;
5288fbf0 CB	197	unsigned int action_bits;
ba5c1e9b CO	198	};
ba5c1e9b CO	199
180c12fb	200	struct kvm_s390_float_interrupt {
ba5c1e9b CO	201	spinlock_t lock;
	202	struct list_head list;
	203	atomic_t active;
	204	int next_rr_cpu;
	205	unsigned long idle_mask [(64 + sizeof(long) - 1) / sizeof(long)];
180c12fb	206	struct kvm_s390_local_interrupt *local_int[64];
ba5c1e9b CO	207	};
	208
	209
b0c632db	210	struct kvm_vcpu_arch {
180c12fb	211	struct kvm_s390_sie_block *sie_block;
b0c632db HC	212	unsigned long guest_gprs[16];
	213	s390_fp_regs host_fpregs;
	214	unsigned int host_acrs[NUM_ACRS];
	215	s390_fp_regs guest_fpregs;
	216	unsigned int guest_acrs[NUM_ACRS];
180c12fb	217	struct kvm_s390_local_interrupt local_int;
ca872302 CB	218	struct hrtimer ckc_timer;
ca872302 CB	219	struct tasklet_struct tasklet;
453423dc CB	220	union {
	221	cpuid_t cpu_id;
	222	u64 stidp_data;
	223	};
b0c632db HC	224	};
	225
	226	struct kvm_vm_stat {
	227	u32 remote_tlb_flush;
	228	};
	229
	230	struct kvm_arch{
	231	unsigned long guest_origin;
	232	unsigned long guest_memsize;
	233	struct sca_block *sca;
	234	debug_info_t *dbf;
180c12fb	235	struct kvm_s390_float_interrupt float_int;
b0c632db HC	236	};
b0c632db HC	237
0096369d	238	extern int sie64a(struct kvm_s390_sie_block , unsigned long );
b0c632db	239	#endif