[linux-2.6-block.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/hrtimer.h>
#include <linux/interrupt.h>
#include <linux/kvm_host.h>
#include <asm/debug.h>
#include <asm/cpu.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;
	__u32	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_NR_PAGE_SIZES 2
#define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 8)
#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
#define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
#define KVM_HPAGE_MASK(x)	(~(KVM_HPAGE_SIZE(x) - 1))
#define KVM_PAGES_PER_HPAGE(x)	(KVM_HPAGE_SIZE(x) / PAGE_SIZE)

#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_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[32];		/* 0x0070 */
	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_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 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_tprot;
	u32 instruction_sigp_sense;
	u32 instruction_sigp_sense_running;
	u32 instruction_sigp_external_call;
	u32 instruction_sigp_emergency;
	u32 instruction_sigp_stop;
	u32 instruction_sigp_arch;
	u32 instruction_sigp_prefix;
	u32 instruction_sigp_restart;
	u32 diagnose_10;
	u32 diagnose_44;
	u32 diagnose_9c;
};

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_extcall_info {
	__u16 code;
};

struct kvm_s390_emerg_info {
	__u16 code;
};

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;
	};
};

/* 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[(KVM_MAX_VCPUS + sizeof(long) - 1)
				/ sizeof(long)];
	struct kvm_s390_local_interrupt *local_int[KVM_MAX_VCPUS];
};


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 tasklet_struct tasklet;
	union  {
		struct cpuid	cpu_id;
		u64		stidp_data;
	};
	struct gmap *gmap;
};

struct kvm_vm_stat {
	u32 remote_tlb_flush;
};

struct kvm_arch_memory_slot {
};

struct kvm_arch{
	struct sca_block *sca;
	debug_info_t *dbf;
	struct kvm_s390_float_interrupt float_int;
	struct gmap *gmap;
};

extern int sie64a(struct kvm_s390_sie_block *, u64 *);
#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
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>
e86a6ed6	20	#include <asm/cpu.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 {
b0c632db HC	28	atomic_t scn;
fc34531d	29	__u32 reserved;
b0c632db HC	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
ec04b260	43	#define KVM_NR_PAGE_SIZES 2
82855413 JR	44	#define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 8)
82855413 JR	45	#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
ec04b260 JR	46	#define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
	47	#define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
	48	#define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
b0c632db	49
9e6dabef	50	#define CPUSTAT_STOPPED 0x80000000
b0c632db HC	51	#define CPUSTAT_WAIT 0x10000000
	52	#define CPUSTAT_ECALL_PEND 0x08000000
	53	#define CPUSTAT_STOP_INT 0x04000000
	54	#define CPUSTAT_IO_INT 0x02000000
	55	#define CPUSTAT_EXT_INT 0x01000000
	56	#define CPUSTAT_RUNNING 0x00800000
	57	#define CPUSTAT_RETAINED 0x00400000
	58	#define CPUSTAT_TIMING_SUB 0x00020000
	59	#define CPUSTAT_SIE_SUB 0x00010000
	60	#define CPUSTAT_RRF 0x00008000
	61	#define CPUSTAT_SLSV 0x00004000
	62	#define CPUSTAT_SLSR 0x00002000
	63	#define CPUSTAT_ZARCH 0x00000800
	64	#define CPUSTAT_MCDS 0x00000100
	65	#define CPUSTAT_SM 0x00000080
	66	#define CPUSTAT_G 0x00000008
	67	#define CPUSTAT_J 0x00000002
	68	#define CPUSTAT_P 0x00000001
	69
180c12fb	70	struct kvm_s390_sie_block {
b0c632db HC	71	atomic_t cpuflags; /* 0x0000 */
	72	__u32 prefix; /* 0x0004 */
	73	__u8 reserved8[32]; /* 0x0008 */
	74	__u64 cputm; /* 0x0028 */
	75	__u64 ckc; /* 0x0030 */
	76	__u64 epoch; /* 0x0038 */
	77	__u8 reserved40[4]; /* 0x0040 */
ba5c1e9b	78	#define LCTL_CR0 0x8000
b0c632db HC	79	__u16 lctl; /* 0x0044 */
	80	__s16 icpua; /* 0x0046 */
	81	__u32 ictl; /* 0x0048 */
	82	__u32 eca; /* 0x004c */
	83	__u8 icptcode; /* 0x0050 */
	84	__u8 reserved51; /* 0x0051 */
	85	__u16 ihcpu; /* 0x0052 */
	86	__u8 reserved54[2]; /* 0x0054 */
	87	__u16 ipa; /* 0x0056 */
	88	__u32 ipb; /* 0x0058 */
	89	__u32 scaoh; /* 0x005c */
	90	__u8 reserved60; /* 0x0060 */
	91	__u8 ecb; /* 0x0061 */
	92	__u8 reserved62[2]; /* 0x0062 */
	93	__u32 scaol; /* 0x0064 */
	94	__u8 reserved68[4]; /* 0x0068 */
	95	__u32 todpr; /* 0x006c */
092670cd	96	__u8 reserved70[32]; /* 0x0070 */
b0c632db HC	97	psw_t gpsw; /* 0x0090 */
	98	__u64 gg14; /* 0x00a0 */
	99	__u64 gg15; /* 0x00a8 */
e28acfea CB	100	__u8 reservedb0[30]; /* 0x00b0 */
	101	__u16 iprcc; /* 0x00ce */
	102	__u8 reservedd0[48]; /* 0x00d0 */
b0c632db HC	103	__u64 gcr[16]; /* 0x0100 */
b0c632db HC	104	__u64 gbea; /* 0x0180 */
ef50f7ac CB	105	__u8 reserved188[24]; /* 0x0188 */
	106	__u32 fac; /* 0x01a0 */
	107	__u8 reserved1a4[92]; /* 0x01a4 */
b0c632db HC	108	} __attribute__((packed));
	109
	110	struct kvm_vcpu_stat {
	111	u32 exit_userspace;
0eaeafa1	112	u32 exit_null;
8f2abe6a CB	113	u32 exit_external_request;
	114	u32 exit_external_interrupt;
	115	u32 exit_stop_request;
	116	u32 exit_validity;
ba5c1e9b CO	117	u32 exit_instruction;
ba5c1e9b CO	118	u32 instruction_lctl;
f5e10b09	119	u32 instruction_lctlg;
ba5c1e9b CO	120	u32 exit_program_interruption;
ba5c1e9b CO	121	u32 exit_instr_and_program;
7697e71f	122	u32 deliver_external_call;
ba5c1e9b CO	123	u32 deliver_emergency_signal;
	124	u32 deliver_service_signal;
	125	u32 deliver_virtio_interrupt;
	126	u32 deliver_stop_signal;
	127	u32 deliver_prefix_signal;
	128	u32 deliver_restart_signal;
	129	u32 deliver_program_int;
	130	u32 exit_wait_state;
453423dc CB	131	u32 instruction_stidp;
	132	u32 instruction_spx;
	133	u32 instruction_stpx;
	134	u32 instruction_stap;
	135	u32 instruction_storage_key;
	136	u32 instruction_stsch;
	137	u32 instruction_chsc;
	138	u32 instruction_stsi;
	139	u32 instruction_stfl;
bb25b9ba	140	u32 instruction_tprot;
5288fbf0	141	u32 instruction_sigp_sense;
bd59d3a4	142	u32 instruction_sigp_sense_running;
7697e71f	143	u32 instruction_sigp_external_call;
5288fbf0 CB	144	u32 instruction_sigp_emergency;
	145	u32 instruction_sigp_stop;
	146	u32 instruction_sigp_arch;
	147	u32 instruction_sigp_prefix;
	148	u32 instruction_sigp_restart;
388186bc	149	u32 diagnose_10;
e28acfea	150	u32 diagnose_44;
41628d33	151	u32 diagnose_9c;
b0c632db HC	152	};
b0c632db HC	153
180c12fb	154	struct kvm_s390_io_info {
ba5c1e9b CO	155	__u16 subchannel_id; /* 0x0b8 */
	156	__u16 subchannel_nr; /* 0x0ba */
	157	__u32 io_int_parm; /* 0x0bc */
	158	__u32 io_int_word; /* 0x0c0 */
	159	};
	160
180c12fb	161	struct kvm_s390_ext_info {
ba5c1e9b CO	162	__u32 ext_params;
	163	__u64 ext_params2;
	164	};
	165
	166	#define PGM_OPERATION 0x01
	167	#define PGM_PRIVILEGED_OPERATION 0x02
	168	#define PGM_EXECUTE 0x03
	169	#define PGM_PROTECTION 0x04
	170	#define PGM_ADDRESSING 0x05
	171	#define PGM_SPECIFICATION 0x06
	172	#define PGM_DATA 0x07
	173
180c12fb	174	struct kvm_s390_pgm_info {
ba5c1e9b CO	175	__u16 code;
	176	};
	177
180c12fb	178	struct kvm_s390_prefix_info {
ba5c1e9b CO	179	__u32 address;
	180	};
	181
7697e71f CE	182	struct kvm_s390_extcall_info {
	183	__u16 code;
	184	};
	185
8bb3a2eb CE	186	struct kvm_s390_emerg_info {
	187	__u16 code;
	188	};
	189
180c12fb	190	struct kvm_s390_interrupt_info {
ba5c1e9b CO	191	struct list_head list;
	192	u64 type;
	193	union {
180c12fb CB	194	struct kvm_s390_io_info io;
	195	struct kvm_s390_ext_info ext;
	196	struct kvm_s390_pgm_info pgm;
8bb3a2eb	197	struct kvm_s390_emerg_info emerg;
7697e71f	198	struct kvm_s390_extcall_info extcall;
180c12fb	199	struct kvm_s390_prefix_info prefix;
ba5c1e9b CO	200	};
	201	};
	202
5288fbf0	203	/* for local_interrupt.action_flags */
9ace903d CE	204	#define ACTION_STORE_ON_STOP (1<<0)
	205	#define ACTION_STOP_ON_STOP (1<<1)
	206	#define ACTION_RELOADVCPU_ON_STOP (1<<2)
5288fbf0	207
180c12fb	208	struct kvm_s390_local_interrupt {
ba5c1e9b CO	209	spinlock_t lock;
	210	struct list_head list;
	211	atomic_t active;
180c12fb	212	struct kvm_s390_float_interrupt *float_int;
ba5c1e9b CO	213	int timer_due; /* event indicator for waitqueue below */
ba5c1e9b CO	214	wait_queue_head_t wq;
5288fbf0 CB	215	atomic_t *cpuflags;
5288fbf0 CB	216	unsigned int action_bits;
ba5c1e9b CO	217	};
ba5c1e9b CO	218
180c12fb	219	struct kvm_s390_float_interrupt {
ba5c1e9b CO	220	spinlock_t lock;
	221	struct list_head list;
	222	atomic_t active;
	223	int next_rr_cpu;
3777594d CO	224	unsigned long idle_mask[(KVM_MAX_VCPUS + sizeof(long) - 1)
	225	/ sizeof(long)];
	226	struct kvm_s390_local_interrupt *local_int[KVM_MAX_VCPUS];
ba5c1e9b CO	227	};
	228
	229
b0c632db	230	struct kvm_vcpu_arch {
180c12fb	231	struct kvm_s390_sie_block *sie_block;
b0c632db HC	232	s390_fp_regs host_fpregs;
	233	unsigned int host_acrs[NUM_ACRS];
	234	s390_fp_regs guest_fpregs;
180c12fb	235	struct kvm_s390_local_interrupt local_int;
ca872302 CB	236	struct hrtimer ckc_timer;
ca872302 CB	237	struct tasklet_struct tasklet;
453423dc	238	union {
e86a6ed6 HC	239	struct cpuid cpu_id;
e86a6ed6 HC	240	u64 stidp_data;
453423dc	241	};
598841ca	242	struct gmap *gmap;
b0c632db HC	243	};
	244
	245	struct kvm_vm_stat {
	246	u32 remote_tlb_flush;
	247	};
	248
db3fe4eb TY	249	struct kvm_arch_memory_slot {
	250	};
	251
b0c632db	252	struct kvm_arch{
b0c632db HC	253	struct sca_block *sca;
b0c632db HC	254	debug_info_t *dbf;
180c12fb	255	struct kvm_s390_float_interrupt float_int;
598841ca	256	struct gmap *gmap;
b0c632db HC	257	};
b0c632db HC	258
5a32c1af	259	extern int sie64a(struct kvm_s390_sie_block , u64 );
b0c632db	260	#endif