cregit-Linux how code gets into the kernel

Release 4.14 arch/s390/include/asm/kvm_host.h

Directory: arch/s390/include/asm
/*
 * 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/types.h>
#include <linux/hrtimer.h>
#include <linux/interrupt.h>
#include <linux/kvm_types.h>
#include <linux/kvm_host.h>
#include <linux/kvm.h>
#include <linux/seqlock.h>
#include <asm/debug.h>
#include <asm/cpu.h>
#include <asm/fpu/api.h>
#include <asm/isc.h>
#include <asm/guarded_storage.h>


#define KVM_S390_BSCA_CPU_SLOTS 64

#define KVM_S390_ESCA_CPU_SLOTS 248

#define KVM_MAX_VCPUS 255

#define KVM_USER_MEM_SLOTS 32

/*
 * These seem to be used for allocating ->chip in the routing table,
 * which we don't use. 4096 is an out-of-thin-air value. If we need
 * to look at ->chip later on, we'll need to revisit this.
 */

#define KVM_NR_IRQCHIPS 1

#define KVM_IRQCHIP_NUM_PINS 4096

#define KVM_HALT_POLL_NS_DEFAULT 80000

/* s390-specific vcpu->requests bit members */

#define KVM_REQ_ENABLE_IBS	KVM_ARCH_REQ(0)

#define KVM_REQ_DISABLE_IBS	KVM_ARCH_REQ(1)

#define KVM_REQ_ICPT_OPEREXC	KVM_ARCH_REQ(2)

#define KVM_REQ_START_MIGRATION KVM_ARCH_REQ(3)

#define KVM_REQ_STOP_MIGRATION  KVM_ARCH_REQ(4)


#define SIGP_CTRL_C		0x80

#define SIGP_CTRL_SCN_MASK	0x3f


union bsca_sigp_ctrl {
	
__u8 value;
	struct {
		
__u8 c : 1;
		
__u8 r : 1;
		
__u8 scn : 6;
	};
};


union esca_sigp_ctrl {
	
__u16 value;
	struct {
		
__u8 c : 1;
		
__u8 reserved: 7;
		
__u8 scn;
	};
};


struct esca_entry {
	
union esca_sigp_ctrl sigp_ctrl;
	
__u16   reserved1[3];
	
__u64   sda;
	
__u64   reserved2[6];
};


struct bsca_entry {
	
__u8	reserved0;
	
union bsca_sigp_ctrl	sigp_ctrl;
	
__u16	reserved[3];
	
__u64	sda;
	
__u64	reserved2[2];
};


union ipte_control {
	
unsigned long val;
	struct {
		
unsigned long k  : 1;
		
unsigned long kh : 31;
		
unsigned long kg : 32;
	};
};


struct bsca_block {
	
union ipte_control ipte_control;
	
__u64	reserved[5];
	
__u64	mcn;
	
__u64	reserved2;
	
struct bsca_entry cpu[KVM_S390_BSCA_CPU_SLOTS];
};


struct esca_block {
	
union ipte_control ipte_control;
	
__u64   reserved1[7];
	
__u64   mcn[4];
	
__u64   reserved2[20];
	
struct esca_entry cpu[KVM_S390_ESCA_CPU_SLOTS];
};

/*
 * This struct is used to store some machine check info from lowcore
 * for machine checks that happen while the guest is running.
 * This info in host's lowcore might be overwritten by a second machine
 * check from host when host is in the machine check's high-level handling.
 * The size is 24 bytes.
 */

struct mcck_volatile_info {
	
__u64 mcic;
	
__u64 failing_storage_address;
	
__u32 ext_damage_code;
	
__u32 reserved;
};


#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_KSS        0x00000200

#define CPUSTAT_SM         0x00000080

#define CPUSTAT_IBS        0x00000040

#define CPUSTAT_GED2       0x00000010

#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 : 1;			/* 0x0004 */
	
__u32 prefix : 18;
	
__u32 : 1;
	
__u32 ibc : 12;
	
__u8	reserved08[4];		/* 0x0008 */

#define PROG_IN_SIE (1<<0)
	
__u32	prog0c;			/* 0x000c */
	
__u8	reserved10[16];		/* 0x0010 */

#define PROG_BLOCK_SIE	(1<<0)

#define PROG_REQUEST	(1<<1)
	
atomic_t prog20;		/* 0x0020 */
	
__u8	reserved24[4];		/* 0x0024 */
	
__u64	cputm;			/* 0x0028 */
	
__u64	ckc;			/* 0x0030 */
	
__u64	epoch;			/* 0x0038 */
	
__u32	svcc;			/* 0x0040 */

#define LCTL_CR0	0x8000

#define LCTL_CR6	0x0200

#define LCTL_CR9	0x0040

#define LCTL_CR10	0x0020

#define LCTL_CR11	0x0010

#define LCTL_CR14	0x0002
	
__u16   lctl;			/* 0x0044 */
	
__s16	icpua;			/* 0x0046 */

#define ICTL_OPEREXC	0x80000000

#define ICTL_PINT	0x20000000

#define ICTL_LPSW	0x00400000

#define ICTL_STCTL	0x00040000

#define ICTL_ISKE	0x00004000

#define ICTL_SSKE	0x00002000

#define ICTL_RRBE	0x00001000

#define ICTL_TPROT	0x00000200
	
__u32	ictl;			/* 0x0048 */

#define ECA_CEI		0x80000000

#define ECA_IB		0x40000000

#define ECA_SIGPI	0x10000000

#define ECA_MVPGI	0x01000000

#define ECA_VX		0x00020000

#define ECA_PROTEXCI	0x00002000

#define ECA_SII		0x00000001
	
__u32	eca;			/* 0x004c */

#define ICPT_INST	0x04

#define ICPT_PROGI	0x08

#define ICPT_INSTPROGI	0x0C

#define ICPT_EXTREQ	0x10

#define ICPT_EXTINT	0x14

#define ICPT_IOREQ	0x18

#define ICPT_WAIT	0x1c

#define ICPT_VALIDITY	0x20

#define ICPT_STOP	0x28

#define ICPT_OPEREXC	0x2C

#define ICPT_PARTEXEC	0x38

#define ICPT_IOINST	0x40

#define ICPT_KSS	0x5c
	
__u8	icptcode;		/* 0x0050 */
	
__u8	icptstatus;		/* 0x0051 */
	
__u16	ihcpu;			/* 0x0052 */
	
__u8	reserved54[2];		/* 0x0054 */
	
__u16	ipa;			/* 0x0056 */
	
__u32	ipb;			/* 0x0058 */
	
__u32	scaoh;			/* 0x005c */
	
__u8	reserved60;		/* 0x0060 */

#define ECB_GS		0x40

#define ECB_TE		0x10

#define ECB_SRSI	0x04

#define ECB_HOSTPROTINT	0x02
	
__u8	ecb;			/* 0x0061 */

#define ECB2_CMMA	0x80

#define ECB2_IEP	0x20

#define ECB2_PFMFI	0x08

#define ECB2_ESCA	0x04
	
__u8    ecb2;                   /* 0x0062 */

#define ECB3_DEA 0x08

#define ECB3_AES 0x04

#define ECB3_RI  0x01
	
__u8    ecb3;			/* 0x0063 */
	
__u32	scaol;			/* 0x0064 */
	
__u8	reserved68;		/* 0x0068 */
	
__u8    epdx;			/* 0x0069 */
	
__u8    reserved6a[2];		/* 0x006a */
	
__u32	todpr;			/* 0x006c */
	
__u8	reserved70[16];		/* 0x0070 */
	
__u64	mso;			/* 0x0080 */
	
__u64	msl;			/* 0x0088 */
	
psw_t	gpsw;			/* 0x0090 */
	
__u64	gg14;			/* 0x00a0 */
	
__u64	gg15;			/* 0x00a8 */
	
__u8	reservedb0[20];		/* 0x00b0 */
	
__u16	extcpuaddr;		/* 0x00c4 */
	
__u16	eic;			/* 0x00c6 */
	
__u32	reservedc8;		/* 0x00c8 */
	
__u16	pgmilc;			/* 0x00cc */
	
__u16	iprcc;			/* 0x00ce */
	
__u32	dxc;			/* 0x00d0 */
	
__u16	mcn;			/* 0x00d4 */
	
__u8	perc;			/* 0x00d6 */
	
__u8	peratmid;		/* 0x00d7 */
	
__u64	peraddr;		/* 0x00d8 */
	
__u8	eai;			/* 0x00e0 */
	
__u8	peraid;			/* 0x00e1 */
	
__u8	oai;			/* 0x00e2 */
	
__u8	armid;			/* 0x00e3 */
	
__u8	reservede4[4];		/* 0x00e4 */
	
__u64	tecmc;			/* 0x00e8 */
	
__u8	reservedf0[12];		/* 0x00f0 */

#define CRYCB_FORMAT1 0x00000001

#define CRYCB_FORMAT2 0x00000003
	
__u32	crycbd;			/* 0x00fc */
	
__u64	gcr[16];		/* 0x0100 */
	
__u64	gbea;			/* 0x0180 */
	
__u8    reserved188[8];		/* 0x0188 */
	
__u64   sdnxo;			/* 0x0190 */
	
__u8    reserved198[8];		/* 0x0198 */
	
__u32	fac;			/* 0x01a0 */
	
__u8	reserved1a4[20];	/* 0x01a4 */
	
__u64	cbrlo;			/* 0x01b8 */
	
__u8	reserved1c0[8];		/* 0x01c0 */

#define ECD_HOSTREGMGMT	0x20000000

#define ECD_MEF		0x08000000
	
__u32	ecd;			/* 0x01c8 */
	
__u8	reserved1cc[18];	/* 0x01cc */
	
__u64	pp;			/* 0x01de */
	
__u8	reserved1e6[2];		/* 0x01e6 */
	
__u64	itdba;			/* 0x01e8 */
	
__u64   riccbd;			/* 0x01f0 */
	
__u64	gvrd;			/* 0x01f8 */
} __attribute__((packed));


struct kvm_s390_itdb {
	
__u8	data[256];
};


struct sie_page {
	
struct kvm_s390_sie_block sie_block;
	
struct mcck_volatile_info mcck_info;	/* 0x0200 */
	
__u8 reserved218[1000];		/* 0x0218 */
	
struct kvm_s390_itdb itdb;	/* 0x0600 */
	
__u8 reserved700[2304];		/* 0x0700 */
};


struct kvm_vcpu_stat {
	
u64 exit_userspace;
	
u64 exit_null;
	
u64 exit_external_request;
	
u64 exit_external_interrupt;
	
u64 exit_stop_request;
	
u64 exit_validity;
	
u64 exit_instruction;
	
u64 exit_pei;
	
u64 halt_successful_poll;
	
u64 halt_attempted_poll;
	
u64 halt_poll_invalid;
	
u64 halt_wakeup;
	
u64 instruction_lctl;
	
u64 instruction_lctlg;
	
u64 instruction_stctl;
	
u64 instruction_stctg;
	
u64 exit_program_interruption;
	
u64 exit_instr_and_program;
	
u64 exit_operation_exception;
	
u64 deliver_external_call;
	
u64 deliver_emergency_signal;
	
u64 deliver_service_signal;
	
u64 deliver_virtio_interrupt;
	
u64 deliver_stop_signal;
	
u64 deliver_prefix_signal;
	
u64 deliver_restart_signal;
	
u64 deliver_program_int;
	
u64 deliver_io_int;
	
u64 exit_wait_state;
	
u64 instruction_pfmf;
	
u64 instruction_stidp;
	
u64 instruction_spx;
	
u64 instruction_stpx;
	
u64 instruction_stap;
	
u64 instruction_storage_key;
	
u64 instruction_ipte_interlock;
	
u64 instruction_stsch;
	
u64 instruction_chsc;
	
u64 instruction_stsi;
	
u64 instruction_stfl;
	
u64 instruction_tprot;
	
u64 instruction_sie;
	
u64 instruction_essa;
	
u64 instruction_sthyi;
	
u64 instruction_sigp_sense;
	
u64 instruction_sigp_sense_running;
	
u64 instruction_sigp_external_call;
	
u64 instruction_sigp_emergency;
	
u64 instruction_sigp_cond_emergency;
	
u64 instruction_sigp_start;
	
u64 instruction_sigp_stop;
	
u64 instruction_sigp_stop_store_status;
	
u64 instruction_sigp_store_status;
	
u64 instruction_sigp_store_adtl_status;
	
u64 instruction_sigp_arch;
	
u64 instruction_sigp_prefix;
	
u64 instruction_sigp_restart;
	
u64 instruction_sigp_init_cpu_reset;
	
u64 instruction_sigp_cpu_reset;
	
u64 instruction_sigp_unknown;
	
u64 diagnose_10;
	
u64 diagnose_44;
	
u64 diagnose_9c;
	
u64 diagnose_258;
	
u64 diagnose_308;
	
u64 diagnose_500;
};


#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

#define PGM_FIXED_POINT_OVERFLOW	0x08

#define PGM_FIXED_POINT_DIVIDE		0x09

#define PGM_DECIMAL_OVERFLOW		0x0a

#define PGM_DECIMAL_DIVIDE		0x0b

#define PGM_HFP_EXPONENT_OVERFLOW	0x0c

#define PGM_HFP_EXPONENT_UNDERFLOW	0x0d

#define PGM_HFP_SIGNIFICANCE		0x0e

#define PGM_HFP_DIVIDE			0x0f

#define PGM_SEGMENT_TRANSLATION		0x10

#define PGM_PAGE_TRANSLATION		0x11

#define PGM_TRANSLATION_SPEC		0x12

#define PGM_SPECIAL_OPERATION		0x13

#define PGM_OPERAND			0x15

#define PGM_TRACE_TABEL			0x16

#define PGM_VECTOR_PROCESSING		0x1b

#define PGM_SPACE_SWITCH		0x1c

#define PGM_HFP_SQUARE_ROOT		0x1d

#define PGM_PC_TRANSLATION_SPEC		0x1f

#define PGM_AFX_TRANSLATION		0x20

#define PGM_ASX_TRANSLATION		0x21

#define PGM_LX_TRANSLATION		0x22

#define PGM_EX_TRANSLATION		0x23

#define PGM_PRIMARY_AUTHORITY		0x24

#define PGM_SECONDARY_AUTHORITY		0x25

#define PGM_LFX_TRANSLATION		0x26

#define PGM_LSX_TRANSLATION		0x27

#define PGM_ALET_SPECIFICATION		0x28

#define PGM_ALEN_TRANSLATION		0x29

#define PGM_ALE_SEQUENCE		0x2a

#define PGM_ASTE_VALIDITY		0x2b

#define PGM_ASTE_SEQUENCE		0x2c

#define PGM_EXTENDED_AUTHORITY		0x2d

#define PGM_LSTE_SEQUENCE		0x2e

#define PGM_ASTE_INSTANCE		0x2f

#define PGM_STACK_FULL			0x30

#define PGM_STACK_EMPTY			0x31

#define PGM_STACK_SPECIFICATION		0x32

#define PGM_STACK_TYPE			0x33

#define PGM_STACK_OPERATION		0x34

#define PGM_ASCE_TYPE			0x38

#define PGM_REGION_FIRST_TRANS		0x39

#define PGM_REGION_SECOND_TRANS		0x3a

#define PGM_REGION_THIRD_TRANS		0x3b

#define PGM_MONITOR			0x40

#define PGM_PER				0x80

#define PGM_CRYPTO_OPERATION		0x119

/* irq types in order of priority */

enum irq_types {
	
IRQ_PEND_MCHK_EX = 0,
	
IRQ_PEND_SVC,
	
IRQ_PEND_PROG,
	
IRQ_PEND_MCHK_REP,
	
IRQ_PEND_EXT_IRQ_KEY,
	
IRQ_PEND_EXT_MALFUNC,
	
IRQ_PEND_EXT_EMERGENCY,
	
IRQ_PEND_EXT_EXTERNAL,
	
IRQ_PEND_EXT_CLOCK_COMP,
	
IRQ_PEND_EXT_CPU_TIMER,
	
IRQ_PEND_EXT_TIMING,
	
IRQ_PEND_EXT_SERVICE,
	
IRQ_PEND_EXT_HOST,
	
IRQ_PEND_PFAULT_INIT,
	
IRQ_PEND_PFAULT_DONE,
	
IRQ_PEND_VIRTIO,
	
IRQ_PEND_IO_ISC_0,
	
IRQ_PEND_IO_ISC_1,
	
IRQ_PEND_IO_ISC_2,
	
IRQ_PEND_IO_ISC_3,
	
IRQ_PEND_IO_ISC_4,
	
IRQ_PEND_IO_ISC_5,
	
IRQ_PEND_IO_ISC_6,
	
IRQ_PEND_IO_ISC_7,
	
IRQ_PEND_SIGP_STOP,
	
IRQ_PEND_RESTART,
	
IRQ_PEND_SET_PREFIX,
	
IRQ_PEND_COUNT
};

/* We have 2M for virtio device descriptor pages. Smallest amount of
 * memory per page is 24 bytes (1 queue), so (2048*1024) / 24 = 87381
 */

#define KVM_S390_MAX_VIRTIO_IRQS 87381

/*
 * Repressible (non-floating) machine check interrupts
 * subclass bits in MCIC
 */

#define MCHK_EXTD_BIT 58

#define MCHK_DEGR_BIT 56

#define MCHK_WARN_BIT 55

#define MCHK_REP_MASK ((1UL << MCHK_DEGR_BIT) | \
                       (1UL << MCHK_EXTD_BIT) | \
                       (1UL << MCHK_WARN_BIT))

/* Exigent machine check interrupts subclass bits in MCIC */

#define MCHK_SD_BIT 63

#define MCHK_PD_BIT 62

#define MCHK_EX_MASK ((1UL << MCHK_SD_BIT) | (1UL << MCHK_PD_BIT))


#define IRQ_PEND_EXT_MASK ((1UL << IRQ_PEND_EXT_IRQ_KEY)    | \
                           (1UL << IRQ_PEND_EXT_CLOCK_COMP) | \
                           (1UL << IRQ_PEND_EXT_CPU_TIMER)  | \
                           (1UL << IRQ_PEND_EXT_MALFUNC)    | \
                           (1UL << IRQ_PEND_EXT_EMERGENCY)  | \
                           (1UL << IRQ_PEND_EXT_EXTERNAL)   | \
                           (1UL << IRQ_PEND_EXT_TIMING)     | \
                           (1UL << IRQ_PEND_EXT_HOST)       | \
                           (1UL << IRQ_PEND_EXT_SERVICE)    | \
                           (1UL << IRQ_PEND_VIRTIO)         | \
                           (1UL << IRQ_PEND_PFAULT_INIT)    | \
                           (1UL << IRQ_PEND_PFAULT_DONE))


#define IRQ_PEND_IO_MASK ((1UL << IRQ_PEND_IO_ISC_0) | \
                          (1UL << IRQ_PEND_IO_ISC_1) | \
                          (1UL << IRQ_PEND_IO_ISC_2) | \
                          (1UL << IRQ_PEND_IO_ISC_3) | \
                          (1UL << IRQ_PEND_IO_ISC_4) | \
                          (1UL << IRQ_PEND_IO_ISC_5) | \
                          (1UL << IRQ_PEND_IO_ISC_6) | \
                          (1UL << IRQ_PEND_IO_ISC_7))


#define IRQ_PEND_MCHK_MASK ((1UL << IRQ_PEND_MCHK_REP) | \
                            (1UL << IRQ_PEND_MCHK_EX))


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_stop_info stop;
		
struct kvm_s390_mchk_info mchk;
	};
};


struct kvm_s390_irq_payload {
	
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_stop_info stop;
	
struct kvm_s390_mchk_info mchk;
};


struct kvm_s390_local_interrupt {
	
spinlock_t lock;
	
struct kvm_s390_float_interrupt *float_int;
	
struct swait_queue_head *wq;
	
atomic_t *cpuflags;
	DECLARE_BITMAP(sigp_emerg_pending, KVM_MAX_VCPUS);
	
struct kvm_s390_irq_payload irq;
	
unsigned long pending_irqs;
};


#define FIRQ_LIST_IO_ISC_0 0

#define FIRQ_LIST_IO_ISC_1 1

#define FIRQ_LIST_IO_ISC_2 2

#define FIRQ_LIST_IO_ISC_3 3

#define FIRQ_LIST_IO_ISC_4 4

#define FIRQ_LIST_IO_ISC_5 5

#define FIRQ_LIST_IO_ISC_6 6

#define FIRQ_LIST_IO_ISC_7 7

#define FIRQ_LIST_PFAULT   8

#define FIRQ_LIST_VIRTIO   9

#define FIRQ_LIST_COUNT   10

#define FIRQ_CNTR_IO       0

#define FIRQ_CNTR_SERVICE  1

#define FIRQ_CNTR_VIRTIO   2

#define FIRQ_CNTR_PFAULT   3

#define FIRQ_MAX_COUNT     4

/* mask the AIS mode for a given ISC */

#define AIS_MODE_MASK(isc) (0x80 >> isc)


#define KVM_S390_AIS_MODE_ALL    0

#define KVM_S390_AIS_MODE_SINGLE 1


struct kvm_s390_float_interrupt {
	
unsigned long pending_irqs;
	
spinlock_t lock;
	
struct list_head lists[FIRQ_LIST_COUNT];
	
int counters[FIRQ_MAX_COUNT];
	
struct kvm_s390_mchk_info mchk;
	
struct kvm_s390_ext_info srv_signal;
	
int next_rr_cpu;
	
unsigned long idle_mask[BITS_TO_LONGS(KVM_MAX_VCPUS)];
	
struct mutex ais_lock;
	
u8 simm;
	
u8 nimm;
};


struct kvm_hw_wp_info_arch {
	
unsigned long addr;
	
unsigned long phys_addr;
	
int len;
	
char *old_data;
};


struct kvm_hw_bp_info_arch {
	
unsigned long addr;
	
int len;
};

/*
 * Only the upper 16 bits of kvm_guest_debug->control are arch specific.
 * Further KVM_GUESTDBG flags which an be used from userspace can be found in
 * arch/s390/include/uapi/asm/kvm.h
 */

#define KVM_GUESTDBG_EXIT_PENDING 0x10000000


#define guestdbg_enabled(vcpu) \
		(vcpu->guest_debug & KVM_GUESTDBG_ENABLE)

#define guestdbg_sstep_enabled(vcpu) \
		(vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)

#define guestdbg_hw_bp_enabled(vcpu) \
		(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)

#define guestdbg_exit_pending(vcpu) (guestdbg_enabled(vcpu) && \
                (vcpu->guest_debug & KVM_GUESTDBG_EXIT_PENDING))


struct kvm_guestdbg_info_arch {
	
unsigned long cr0;
	
unsigned long cr9;
	
unsigned long cr10;
	
unsigned long cr11;
	
struct kvm_hw_bp_info_arch *hw_bp_info;
	
struct kvm_hw_wp_info_arch *hw_wp_info;
	
int nr_hw_bp;
	
int nr_hw_wp;
	
unsigned long last_bp;
};


struct kvm_vcpu_arch {
	
struct kvm_s390_sie_block *sie_block;
	/* if vsie is active, currently executed shadow sie control block */
	
struct kvm_s390_sie_block *vsie_block;
	
unsigned int      host_acrs[NUM_ACRS];
	
struct gs_cb      *host_gscb;
	
struct fpu	  host_fpregs;
	
struct kvm_s390_local_interrupt local_int;
	
struct hrtimer    ckc_timer;
	
struct kvm_s390_pgm_info pgm;
	
struct gmap *gmap;
	/* backup location for the currently enabled gmap when scheduled out */
	
struct gmap *enabled_gmap;
	
struct kvm_guestdbg_info_arch guestdbg;
	
unsigned long pfault_token;
	
unsigned long pfault_select;
	
unsigned long pfault_compare;
	
bool cputm_enabled;
	/*
         * The seqcount protects updates to cputm_start and sie_block.cputm,
         * this way we can have non-blocking reads with consistent values.
         * Only the owning VCPU thread (vcpu->cpu) is allowed to change these
         * values and to start/stop/enable/disable cpu timer accounting.
         */
	
seqcount_t cputm_seqcount;
	
__u64 cputm_start;
	
bool gs_enabled;
};


struct kvm_vm_stat {
	
ulong remote_tlb_flush;
};


struct kvm_arch_memory_slot {
};


struct s390_map_info {
	
struct list_head list;
	
__u64 guest_addr;
	
__u64 addr;
	
struct page *page;
};


struct s390_io_adapter {
	
unsigned int id;
	
int isc;
	
bool maskable;
	
bool masked;
	
bool swap;
	
bool suppressible;
	
struct rw_semaphore maps_lock;
	
struct list_head maps;
	
atomic_t nr_maps;
};


#define MAX_S390_IO_ADAPTERS ((MAX_ISC + 1) * 8)

#define MAX_S390_ADAPTER_MAPS 256

/* maximum size of facilities and facility mask is 2k bytes */

#define S390_ARCH_FAC_LIST_SIZE_BYTE (1<<11)

#define S390_ARCH_FAC_LIST_SIZE_U64 \
	(S390_ARCH_FAC_LIST_SIZE_BYTE / sizeof(u64))

#define S390_ARCH_FAC_MASK_SIZE_BYTE S390_ARCH_FAC_LIST_SIZE_BYTE

#define S390_ARCH_FAC_MASK_SIZE_U64 \
	(S390_ARCH_FAC_MASK_SIZE_BYTE / sizeof(u64))


struct kvm_s390_cpu_model {
	/* facility mask supported by kvm & hosting machine */
	
__u64 fac_mask[S390_ARCH_FAC_LIST_SIZE_U64];
	/* facility list requested by guest (in dma page) */
	
__u64 *fac_list;
	
u64 cpuid;
	
unsigned short ibc;
};


struct kvm_s390_crypto {
	
struct kvm_s390_crypto_cb *crycb;
	
__u32 crycbd;
	
__u8 aes_kw;
	
__u8 dea_kw;
};


struct kvm_s390_crypto_cb {
	
__u8    reserved00[72];                 /* 0x0000 */
	
__u8    dea_wrapping_key_mask[24];      /* 0x0048 */
	
__u8    aes_wrapping_key_mask[32];      /* 0x0060 */
	
__u8    reserved80[128];                /* 0x0080 */
};

/*
 * sie_page2 has to be allocated as DMA because fac_list and crycb need
 * 31bit addresses in the sie control block.
 */

struct sie_page2 {
	
__u64 fac_list[S390_ARCH_FAC_LIST_SIZE_U64];	/* 0x0000 */
	
struct kvm_s390_crypto_cb crycb;		/* 0x0800 */
	
u8 reserved900[0x1000 - 0x900];			/* 0x0900 */
};


struct kvm_s390_vsie {
	
struct mutex mutex;
	
struct radix_tree_root addr_to_page;
	
int page_count;
	
int next;
	
struct page *pages[KVM_MAX_VCPUS];
};


struct kvm_s390_migration_state {
	
unsigned long bitmap_size;	/* in bits (number of guest pages) */
	
atomic64_t dirty_pages;		/* number of dirty pages */
	
unsigned long *pgste_bitmap;
};


struct kvm_arch{
	
void *sca;
	
int use_esca;
	
rwlock_t sca_lock;
	
debug_info_t *dbf;
	
struct kvm_s390_float_interrupt float_int;
	
struct kvm_device *flic;
	
struct gmap *gmap;
	
unsigned long mem_limit;
	
int css_support;
	
int use_irqchip;
	
int use_cmma;
	
int user_cpu_state_ctrl;
	
int user_sigp;
	
int user_stsi;
	
int user_instr0;
	
struct s390_io_adapter *adapters[MAX_S390_IO_ADAPTERS];
	
wait_queue_head_t ipte_wq;
	
int ipte_lock_count;
	
struct mutex ipte_mutex;
	
struct ratelimit_state sthyi_limit;
	
spinlock_t start_stop_lock;
	
struct sie_page2 *sie_page2;
	
struct kvm_s390_cpu_model model;
	
struct kvm_s390_crypto crypto;
	
struct kvm_s390_vsie vsie;
	
u8 epdx;
	
u64 epoch;
	
struct kvm_s390_migration_state *migration_state;
	/* subset of available cpu features enabled by user space */
	DECLARE_BITMAP(cpu_feat, KVM_S390_VM_CPU_FEAT_NR_BITS);
};


#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);
}


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#define ASYNC_PF_PER_VCPU	64

struct kvm_arch_async_pf {
	
unsigned long pfault_token;
};

bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);

void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
			       struct kvm_async_pf *work);

void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
				     struct kvm_async_pf *work);

void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
				 struct kvm_async_pf *work);

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




static inline void kvm_arch_hardware_disable(void) {}

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static inline void kvm_arch_check_processor_compat(void *rtn) {}

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static inline void kvm_arch_sync_events(struct kvm *kvm) {}

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static inline void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu) {}

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static inline void kvm_arch_sched_in(struct kvm_vcpu *vcpu, int cpu) {}

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static inline void kvm_arch_free_memslot(struct kvm *kvm,
		struct kvm_memory_slot *free, struct kvm_memory_slot *dont) {}

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static inline void kvm_arch_memslots_updated(struct kvm *kvm, struct kvm_memslots *slots) {}

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static inline void kvm_arch_flush_shadow_all(struct kvm *kvm) {}

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static inline void kvm_arch_flush_shadow_memslot(struct kvm *kvm,
		struct kvm_memory_slot *slot) {}

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static inline void kvm_arch_vcpu_blocking(struct kvm_vcpu *vcpu) {}

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static inline void kvm_arch_vcpu_unblocking(struct kvm_vcpu *vcpu) {}


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void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu);

#endif

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Christian Bornträger1676.39%2116.28%


Carsten Otte1375.24%21.55%


Eugene (jno) Dvurechenski1315.01%32.33%


Dominik Dingel1204.59%53.88%


Radim Krčmář1134.32%10.78%


Cornelia Huck1074.09%75.43%


Michael Müller973.71%53.88%


Tony Krowiak762.91%32.33%


Suraj Jitindar Singh672.56%10.78%


Fan Zhang321.22%21.55%


Claudio Imbrenda301.15%10.78%


Fei Li291.11%21.55%


QingFeng Hao260.99%10.78%


Paolo Bonzini240.92%64.65%


Thomas Huth220.84%43.10%


Christoffer Dall220.84%10.78%


Farhan Ali200.76%21.55%


Eric Farman180.69%32.33%


Collin L. Walling170.65%10.78%


Konstantin Weitz150.57%21.55%


Christian Ehrhardt140.54%32.33%


Janosch Frank120.46%32.33%


Hendrik Brueckner60.23%21.55%


Matthew Rosato40.15%10.78%


Guenther Hutzl40.15%10.78%


Heinz Graalfs40.15%10.78%


Takuya Yoshikawa40.15%10.78%


Andrew Jones30.11%10.78%


Jason J. Herne30.11%10.78%


Ekaterina Tumanova30.11%10.78%


Alexander Yarygin20.08%10.78%


Marcelo Tosatti20.08%10.78%


Alex Williamson10.04%10.78%


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Directory: arch/s390/include/asm



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