arch/s390/include/asm/kvm_host.h - arm/linux - Git at Google


            
            /*

            
             * 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_GED        0x00000004

            
            #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[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_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    ecb2;                   /* 0x0062 */

            
            	__u8    reserved63[1];          /* 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[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_pfmf;

            
            	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_OP	 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;

            
            };


            #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);

            
            }


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

            
            extern char sie_exit;

            
            #endif
	/*
	* 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_GED 0x00000004
	#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[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_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 ecb2; /* 0x0062 */
	__u8 reserved63[1]; /* 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[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_pfmf;
	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_OP 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;
	};

	#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);
	}

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