arch/s390/include/asm/kvm_host.h - kernel/mindspeed - Git at Google

 /*
  * asm-s390/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;
 };

 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 [(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  {
 		struct cpuid	cpu_id;
 		u64		stidp_data;
 	};
 	struct gmap *gmap;
 };

 struct kvm_vm_stat {
 	u32 remote_tlb_flush;
 };

 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 *, unsigned long *);
 #endif
	/*
	* asm-s390/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;
	};

	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 [(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 {
	struct cpuid cpu_id;
	u64 stidp_data;
	};
	struct gmap *gmap;
	};

	struct kvm_vm_stat {
	u32 remote_tlb_flush;
	};

	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 , unsigned long );
	#endif