[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/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_USER_MEM_SLOTS 32

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	reserved08[4];		/* 0x0008 */
#define PROG_IN_SIE (1<<0)
	__u32	prog0c;			/* 0x000c */
	__u8	reserved10[24];		/* 0x0010 */
	__u64	cputm;			/* 0x0028 */
	__u64	ckc;			/* 0x0030 */
	__u64	epoch;			/* 0x0038 */
	__u8	reserved40[4];		/* 0x0040 */
#define LCTL_CR0	0x8000
#define LCTL_CR6	0x0200
#define LCTL_CR14	0x0002
	__u16   lctl;			/* 0x0044 */
	__s16	icpua;			/* 0x0046 */
#define ICTL_LPSW 0x00400000
	__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 deliver_io_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_mchk_info {
	__u64 cr14;
	__u64 mcic;
};

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_mchk_info mchk;
	};
};

/* 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;
	int css_support;
};

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
b0c632db HC	22	#define KVM_MAX_VCPUS 64
bbacc0c1	23	#define KVM_USER_MEM_SLOTS 32
b0c632db	24
b0c632db HC	25	struct sca_entry {
b0c632db HC	26	atomic_t scn;
fc34531d	27	__u32 reserved;
b0c632db HC	28	__u64 sda;
	29	__u64 reserved2[2];
	30	} __attribute__((packed));
	31
	32
	33	struct sca_block {
	34	__u64 ipte_control;
	35	__u64 reserved[5];
	36	__u64 mcn;
	37	__u64 reserved2;
	38	struct sca_entry cpu[64];
	39	} __attribute__((packed));
	40
ec04b260	41	#define KVM_NR_PAGE_SIZES 2
82855413 JR	42	#define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 8)
82855413 JR	43	#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
ec04b260 JR	44	#define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
	45	#define KVM_HPAGE_MASK(x) (~(KVM_HPAGE_SIZE(x) - 1))
	46	#define KVM_PAGES_PER_HPAGE(x) (KVM_HPAGE_SIZE(x) / PAGE_SIZE)
b0c632db	47
9e6dabef	48	#define CPUSTAT_STOPPED 0x80000000
b0c632db HC	49	#define CPUSTAT_WAIT 0x10000000
	50	#define CPUSTAT_ECALL_PEND 0x08000000
	51	#define CPUSTAT_STOP_INT 0x04000000
	52	#define CPUSTAT_IO_INT 0x02000000
	53	#define CPUSTAT_EXT_INT 0x01000000
	54	#define CPUSTAT_RUNNING 0x00800000
	55	#define CPUSTAT_RETAINED 0x00400000
	56	#define CPUSTAT_TIMING_SUB 0x00020000
	57	#define CPUSTAT_SIE_SUB 0x00010000
	58	#define CPUSTAT_RRF 0x00008000
	59	#define CPUSTAT_SLSV 0x00004000
	60	#define CPUSTAT_SLSR 0x00002000
	61	#define CPUSTAT_ZARCH 0x00000800
	62	#define CPUSTAT_MCDS 0x00000100
	63	#define CPUSTAT_SM 0x00000080
	64	#define CPUSTAT_G 0x00000008
	65	#define CPUSTAT_J 0x00000002
	66	#define CPUSTAT_P 0x00000001
	67
180c12fb	68	struct kvm_s390_sie_block {
b0c632db HC	69	atomic_t cpuflags; /* 0x0000 */
b0c632db HC	70	__u32 prefix; /* 0x0004 */
95d38fd0 CB	71	__u8 reserved08[4]; /* 0x0008 */
	72	#define PROG_IN_SIE (1<<0)
	73	__u32 prog0c; /* 0x000c */
	74	__u8 reserved10[24]; /* 0x0010 */
b0c632db HC	75	__u64 cputm; /* 0x0028 */
	76	__u64 ckc; /* 0x0030 */
	77	__u64 epoch; /* 0x0038 */
	78	__u8 reserved40[4]; /* 0x0040 */
ba5c1e9b	79	#define LCTL_CR0 0x8000
d8346b7d	80	#define LCTL_CR6 0x0200
48a3e950	81	#define LCTL_CR14 0x0002
b0c632db HC	82	__u16 lctl; /* 0x0044 */
b0c632db HC	83	__s16 icpua; /* 0x0046 */
48a3e950	84	#define ICTL_LPSW 0x00400000
b0c632db HC	85	__u32 ictl; /* 0x0048 */
	86	__u32 eca; /* 0x004c */
	87	__u8 icptcode; /* 0x0050 */
	88	__u8 reserved51; /* 0x0051 */
	89	__u16 ihcpu; /* 0x0052 */
	90	__u8 reserved54[2]; /* 0x0054 */
	91	__u16 ipa; /* 0x0056 */
	92	__u32 ipb; /* 0x0058 */
	93	__u32 scaoh; /* 0x005c */
	94	__u8 reserved60; /* 0x0060 */
	95	__u8 ecb; /* 0x0061 */
	96	__u8 reserved62[2]; /* 0x0062 */
	97	__u32 scaol; /* 0x0064 */
	98	__u8 reserved68[4]; /* 0x0068 */
	99	__u32 todpr; /* 0x006c */
092670cd	100	__u8 reserved70[32]; /* 0x0070 */
b0c632db HC	101	psw_t gpsw; /* 0x0090 */
	102	__u64 gg14; /* 0x00a0 */
	103	__u64 gg15; /* 0x00a8 */
e28acfea CB	104	__u8 reservedb0[30]; /* 0x00b0 */
	105	__u16 iprcc; /* 0x00ce */
	106	__u8 reservedd0[48]; /* 0x00d0 */
b0c632db HC	107	__u64 gcr[16]; /* 0x0100 */
b0c632db HC	108	__u64 gbea; /* 0x0180 */
ef50f7ac CB	109	__u8 reserved188[24]; /* 0x0188 */
	110	__u32 fac; /* 0x01a0 */
	111	__u8 reserved1a4[92]; /* 0x01a4 */
b0c632db HC	112	} __attribute__((packed));
	113
	114	struct kvm_vcpu_stat {
	115	u32 exit_userspace;
0eaeafa1	116	u32 exit_null;
8f2abe6a CB	117	u32 exit_external_request;
	118	u32 exit_external_interrupt;
	119	u32 exit_stop_request;
	120	u32 exit_validity;
ba5c1e9b CO	121	u32 exit_instruction;
ba5c1e9b CO	122	u32 instruction_lctl;
f5e10b09	123	u32 instruction_lctlg;
ba5c1e9b CO	124	u32 exit_program_interruption;
ba5c1e9b CO	125	u32 exit_instr_and_program;
7697e71f	126	u32 deliver_external_call;
ba5c1e9b CO	127	u32 deliver_emergency_signal;
	128	u32 deliver_service_signal;
	129	u32 deliver_virtio_interrupt;
	130	u32 deliver_stop_signal;
	131	u32 deliver_prefix_signal;
	132	u32 deliver_restart_signal;
	133	u32 deliver_program_int;
d8346b7d	134	u32 deliver_io_int;
ba5c1e9b	135	u32 exit_wait_state;
453423dc CB	136	u32 instruction_stidp;
	137	u32 instruction_spx;
	138	u32 instruction_stpx;
	139	u32 instruction_stap;
	140	u32 instruction_storage_key;
	141	u32 instruction_stsch;
	142	u32 instruction_chsc;
	143	u32 instruction_stsi;
	144	u32 instruction_stfl;
bb25b9ba	145	u32 instruction_tprot;
5288fbf0	146	u32 instruction_sigp_sense;
bd59d3a4	147	u32 instruction_sigp_sense_running;
7697e71f	148	u32 instruction_sigp_external_call;
5288fbf0 CB	149	u32 instruction_sigp_emergency;
	150	u32 instruction_sigp_stop;
	151	u32 instruction_sigp_arch;
	152	u32 instruction_sigp_prefix;
	153	u32 instruction_sigp_restart;
388186bc	154	u32 diagnose_10;
e28acfea	155	u32 diagnose_44;
41628d33	156	u32 diagnose_9c;
b0c632db HC	157	};
b0c632db HC	158
180c12fb	159	struct kvm_s390_io_info {
ba5c1e9b CO	160	__u16 subchannel_id; /* 0x0b8 */
	161	__u16 subchannel_nr; /* 0x0ba */
	162	__u32 io_int_parm; /* 0x0bc */
	163	__u32 io_int_word; /* 0x0c0 */
	164	};
	165
180c12fb	166	struct kvm_s390_ext_info {
ba5c1e9b CO	167	__u32 ext_params;
	168	__u64 ext_params2;
	169	};
	170
	171	#define PGM_OPERATION 0x01
	172	#define PGM_PRIVILEGED_OPERATION 0x02
	173	#define PGM_EXECUTE 0x03
	174	#define PGM_PROTECTION 0x04
	175	#define PGM_ADDRESSING 0x05
	176	#define PGM_SPECIFICATION 0x06
	177	#define PGM_DATA 0x07
	178
180c12fb	179	struct kvm_s390_pgm_info {
ba5c1e9b CO	180	__u16 code;
	181	};
	182
180c12fb	183	struct kvm_s390_prefix_info {
ba5c1e9b CO	184	__u32 address;
	185	};
	186
7697e71f CE	187	struct kvm_s390_extcall_info {
	188	__u16 code;
	189	};
	190
8bb3a2eb CE	191	struct kvm_s390_emerg_info {
	192	__u16 code;
	193	};
	194
48a3e950 CH	195	struct kvm_s390_mchk_info {
	196	__u64 cr14;
	197	__u64 mcic;
	198	};
	199
180c12fb	200	struct kvm_s390_interrupt_info {
ba5c1e9b CO	201	struct list_head list;
	202	u64 type;
	203	union {
180c12fb CB	204	struct kvm_s390_io_info io;
	205	struct kvm_s390_ext_info ext;
	206	struct kvm_s390_pgm_info pgm;
8bb3a2eb	207	struct kvm_s390_emerg_info emerg;
7697e71f	208	struct kvm_s390_extcall_info extcall;
180c12fb	209	struct kvm_s390_prefix_info prefix;
48a3e950	210	struct kvm_s390_mchk_info mchk;
ba5c1e9b CO	211	};
	212	};
	213
5288fbf0	214	/* for local_interrupt.action_flags */
9ace903d CE	215	#define ACTION_STORE_ON_STOP (1<<0)
	216	#define ACTION_STOP_ON_STOP (1<<1)
	217	#define ACTION_RELOADVCPU_ON_STOP (1<<2)
5288fbf0	218
180c12fb	219	struct kvm_s390_local_interrupt {
ba5c1e9b CO	220	spinlock_t lock;
	221	struct list_head list;
	222	atomic_t active;
180c12fb	223	struct kvm_s390_float_interrupt *float_int;
ba5c1e9b CO	224	int timer_due; /* event indicator for waitqueue below */
ba5c1e9b CO	225	wait_queue_head_t wq;
5288fbf0 CB	226	atomic_t *cpuflags;
5288fbf0 CB	227	unsigned int action_bits;
ba5c1e9b CO	228	};
ba5c1e9b CO	229
180c12fb	230	struct kvm_s390_float_interrupt {
ba5c1e9b CO	231	spinlock_t lock;
	232	struct list_head list;
	233	atomic_t active;
	234	int next_rr_cpu;
3777594d CO	235	unsigned long idle_mask[(KVM_MAX_VCPUS + sizeof(long) - 1)
	236	/ sizeof(long)];
	237	struct kvm_s390_local_interrupt *local_int[KVM_MAX_VCPUS];
ba5c1e9b CO	238	};
	239
	240
b0c632db	241	struct kvm_vcpu_arch {
180c12fb	242	struct kvm_s390_sie_block *sie_block;
b0c632db HC	243	s390_fp_regs host_fpregs;
	244	unsigned int host_acrs[NUM_ACRS];
	245	s390_fp_regs guest_fpregs;
180c12fb	246	struct kvm_s390_local_interrupt local_int;
ca872302 CB	247	struct hrtimer ckc_timer;
ca872302 CB	248	struct tasklet_struct tasklet;
453423dc	249	union {
e86a6ed6 HC	250	struct cpuid cpu_id;
e86a6ed6 HC	251	u64 stidp_data;
453423dc	252	};
598841ca	253	struct gmap *gmap;
b0c632db HC	254	};
	255
	256	struct kvm_vm_stat {
	257	u32 remote_tlb_flush;
	258	};
	259
db3fe4eb TY	260	struct kvm_arch_memory_slot {
	261	};
	262
b0c632db	263	struct kvm_arch{
b0c632db HC	264	struct sca_block *sca;
b0c632db HC	265	debug_info_t *dbf;
180c12fb	266	struct kvm_s390_float_interrupt float_int;
598841ca	267	struct gmap *gmap;
fa6b7fe9	268	int css_support;
b0c632db HC	269	};
b0c632db HC	270
5a32c1af	271	extern int sie64a(struct kvm_s390_sie_block , u64 );
b0c632db	272	#endif