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qemu-e2k/target/s390x/cpu.h
David Hildenbrand 3096ffd368 s390x/tcg: Rework MMU selection for instruction fetches 
Instructions are always fetched from primary address space, except when
in home address mode. Perform the selection directly in cpu_mmu_index().

get_mem_index() is only used to perform data access, instructions are
fetched via cpu_lduw_code(), which translates to cpu_mmu_index(env, true).

We don't care about restricting the access permissions of the TLB
entries anymore, as we no longer enter PRIMARY entries into the
SECONDARY MMU. Cleanup related code a bit.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20190816084708.602-4-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2019-08-22 14:53:49 +02:00

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/*
* S/390 virtual CPU header
*
* Copyright (c) 2009 Ulrich Hecht
* Copyright IBM Corp. 2012, 2018
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef S390X_CPU_H
#define S390X_CPU_H
#include "cpu-qom.h"
#include "cpu_models.h"
#include "exec/cpu-defs.h"
#define ELF_MACHINE_UNAME "S390X"
/* The z/Architecture has a strong memory model with some store-after-load re-ordering */
#define TCG_GUEST_DEFAULT_MO (TCG_MO_ALL & ~TCG_MO_ST_LD)
#define TARGET_INSN_START_EXTRA_WORDS 1
#define MMU_MODE0_SUFFIX _primary
#define MMU_MODE1_SUFFIX _secondary
#define MMU_MODE2_SUFFIX _home
#define MMU_MODE3_SUFFIX _real
#define MMU_USER_IDX 0
#define S390_MAX_CPUS 248
typedef struct PSW {
uint64_t mask;
uint64_t addr;
} PSW;
struct CPUS390XState {
uint64_t regs[16]; /* GP registers */
/*
* The floating point registers are part of the vector registers.
* vregs[0][0] -> vregs[15][0] are 16 floating point registers
*/
uint64_t vregs[32][2] QEMU_ALIGNED(16); /* vector registers */
uint32_t aregs[16]; /* access registers */
uint8_t riccb[64]; /* runtime instrumentation control */
uint64_t gscb[4]; /* guarded storage control */
uint64_t etoken; /* etoken */
uint64_t etoken_extension; /* etoken extension */
/* Fields up to this point are not cleared by initial CPU reset */
struct {} start_initial_reset_fields;
uint32_t fpc; /* floating-point control register */
uint32_t cc_op;
bool bpbc; /* branch prediction blocking */
float_status fpu_status; /* passed to softfloat lib */
/* The low part of a 128-bit return, or remainder of a divide. */
uint64_t retxl;
PSW psw;
S390CrashReason crash_reason;
uint64_t cc_src;
uint64_t cc_dst;
uint64_t cc_vr;
uint64_t ex_value;
uint64_t __excp_addr;
uint64_t psa;
uint32_t int_pgm_code;
uint32_t int_pgm_ilen;
uint32_t int_svc_code;
uint32_t int_svc_ilen;
uint64_t per_address;
uint16_t per_perc_atmid;
uint64_t cregs[16]; /* control registers */
int pending_int;
uint16_t external_call_addr;
DECLARE_BITMAP(emergency_signals, S390_MAX_CPUS);
uint64_t ckc;
uint64_t cputm;
uint32_t todpr;
uint64_t pfault_token;
uint64_t pfault_compare;
uint64_t pfault_select;
uint64_t gbea;
uint64_t pp;
/* Fields up to this point are cleared by a CPU reset */
struct {} end_reset_fields;
#if !defined(CONFIG_USER_ONLY)
uint32_t core_id; /* PoP "CPU address", same as cpu_index */
uint64_t cpuid;
#endif
QEMUTimer *tod_timer;
QEMUTimer *cpu_timer;
/*
* The cpu state represents the logical state of a cpu. In contrast to other
* architectures, there is a difference between a halt and a stop on s390.
* If all cpus are either stopped (including check stop) or in the disabled
* wait state, the vm can be shut down.
* The acceptable cpu_state values are defined in the CpuInfoS390State
* enum.
*/
uint8_t cpu_state;
/* currently processed sigp order */
uint8_t sigp_order;
};
static inline uint64_t *get_freg(CPUS390XState *cs, int nr)
{
return &cs->vregs[nr][0];
}
/**
* S390CPU:
* @env: #CPUS390XState.
*
* An S/390 CPU.
*/
struct S390CPU {
/*< private >*/
CPUState parent_obj;
/*< public >*/
CPUNegativeOffsetState neg;
CPUS390XState env;
S390CPUModel *model;
/* needed for live migration */
void *irqstate;
uint32_t irqstate_saved_size;
};
#ifndef CONFIG_USER_ONLY
extern const VMStateDescription vmstate_s390_cpu;
#endif
/* distinguish between 24 bit and 31 bit addressing */
#define HIGH_ORDER_BIT 0x80000000
/* Interrupt Codes */
/* Program Interrupts */
#define PGM_OPERATION 0x0001
#define PGM_PRIVILEGED 0x0002
#define PGM_EXECUTE 0x0003
#define PGM_PROTECTION 0x0004
#define PGM_ADDRESSING 0x0005
#define PGM_SPECIFICATION 0x0006
#define PGM_DATA 0x0007
#define PGM_FIXPT_OVERFLOW 0x0008
#define PGM_FIXPT_DIVIDE 0x0009
#define PGM_DEC_OVERFLOW 0x000a
#define PGM_DEC_DIVIDE 0x000b
#define PGM_HFP_EXP_OVERFLOW 0x000c
#define PGM_HFP_EXP_UNDERFLOW 0x000d
#define PGM_HFP_SIGNIFICANCE 0x000e
#define PGM_HFP_DIVIDE 0x000f
#define PGM_SEGMENT_TRANS 0x0010
#define PGM_PAGE_TRANS 0x0011
#define PGM_TRANS_SPEC 0x0012
#define PGM_SPECIAL_OP 0x0013
#define PGM_OPERAND 0x0015
#define PGM_TRACE_TABLE 0x0016
#define PGM_VECTOR_PROCESSING 0x001b
#define PGM_SPACE_SWITCH 0x001c
#define PGM_HFP_SQRT 0x001d
#define PGM_PC_TRANS_SPEC 0x001f
#define PGM_AFX_TRANS 0x0020
#define PGM_ASX_TRANS 0x0021
#define PGM_LX_TRANS 0x0022
#define PGM_EX_TRANS 0x0023
#define PGM_PRIM_AUTH 0x0024
#define PGM_SEC_AUTH 0x0025
#define PGM_ALET_SPEC 0x0028
#define PGM_ALEN_SPEC 0x0029
#define PGM_ALE_SEQ 0x002a
#define PGM_ASTE_VALID 0x002b
#define PGM_ASTE_SEQ 0x002c
#define PGM_EXT_AUTH 0x002d
#define PGM_STACK_FULL 0x0030
#define PGM_STACK_EMPTY 0x0031
#define PGM_STACK_SPEC 0x0032
#define PGM_STACK_TYPE 0x0033
#define PGM_STACK_OP 0x0034
#define PGM_ASCE_TYPE 0x0038
#define PGM_REG_FIRST_TRANS 0x0039
#define PGM_REG_SEC_TRANS 0x003a
#define PGM_REG_THIRD_TRANS 0x003b
#define PGM_MONITOR 0x0040
#define PGM_PER 0x0080
#define PGM_CRYPTO 0x0119
/* External Interrupts */
#define EXT_INTERRUPT_KEY 0x0040
#define EXT_CLOCK_COMP 0x1004
#define EXT_CPU_TIMER 0x1005
#define EXT_MALFUNCTION 0x1200
#define EXT_EMERGENCY 0x1201
#define EXT_EXTERNAL_CALL 0x1202
#define EXT_ETR 0x1406
#define EXT_SERVICE 0x2401
#define EXT_VIRTIO 0x2603
/* PSW defines */
#undef PSW_MASK_PER
#undef PSW_MASK_UNUSED_2
#undef PSW_MASK_UNUSED_3
#undef PSW_MASK_DAT
#undef PSW_MASK_IO
#undef PSW_MASK_EXT
#undef PSW_MASK_KEY
#undef PSW_SHIFT_KEY
#undef PSW_MASK_MCHECK
#undef PSW_MASK_WAIT
#undef PSW_MASK_PSTATE
#undef PSW_MASK_ASC
#undef PSW_SHIFT_ASC
#undef PSW_MASK_CC
#undef PSW_MASK_PM
#undef PSW_SHIFT_MASK_PM
#undef PSW_MASK_64
#undef PSW_MASK_32
#undef PSW_MASK_ESA_ADDR
#define PSW_MASK_PER 0x4000000000000000ULL
#define PSW_MASK_UNUSED_2 0x2000000000000000ULL
#define PSW_MASK_UNUSED_3 0x1000000000000000ULL
#define PSW_MASK_DAT 0x0400000000000000ULL
#define PSW_MASK_IO 0x0200000000000000ULL
#define PSW_MASK_EXT 0x0100000000000000ULL
#define PSW_MASK_KEY 0x00F0000000000000ULL
#define PSW_SHIFT_KEY 52
#define PSW_MASK_MCHECK 0x0004000000000000ULL
#define PSW_MASK_WAIT 0x0002000000000000ULL
#define PSW_MASK_PSTATE 0x0001000000000000ULL
#define PSW_MASK_ASC 0x0000C00000000000ULL
#define PSW_SHIFT_ASC 46
#define PSW_MASK_CC 0x0000300000000000ULL
#define PSW_MASK_PM 0x00000F0000000000ULL
#define PSW_SHIFT_MASK_PM 40
#define PSW_MASK_64 0x0000000100000000ULL
#define PSW_MASK_32 0x0000000080000000ULL
#define PSW_MASK_ESA_ADDR 0x000000007fffffffULL
#undef PSW_ASC_PRIMARY
#undef PSW_ASC_ACCREG
#undef PSW_ASC_SECONDARY
#undef PSW_ASC_HOME
#define PSW_ASC_PRIMARY 0x0000000000000000ULL
#define PSW_ASC_ACCREG 0x0000400000000000ULL
#define PSW_ASC_SECONDARY 0x0000800000000000ULL
#define PSW_ASC_HOME 0x0000C00000000000ULL
/* the address space values shifted */
#define AS_PRIMARY 0
#define AS_ACCREG 1
#define AS_SECONDARY 2
#define AS_HOME 3
/* tb flags */
#define FLAG_MASK_PSW_SHIFT 31
#define FLAG_MASK_PER (PSW_MASK_PER >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_DAT (PSW_MASK_DAT >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_PSTATE (PSW_MASK_PSTATE >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_ASC (PSW_MASK_ASC >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_64 (PSW_MASK_64 >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_32 (PSW_MASK_32 >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_PSW (FLAG_MASK_PER | FLAG_MASK_DAT | FLAG_MASK_PSTATE \
| FLAG_MASK_ASC | FLAG_MASK_64 | FLAG_MASK_32)
/* we'll use some unused PSW positions to store CR flags in tb flags */
#define FLAG_MASK_AFP (PSW_MASK_UNUSED_2 >> FLAG_MASK_PSW_SHIFT)
#define FLAG_MASK_VECTOR (PSW_MASK_UNUSED_3 >> FLAG_MASK_PSW_SHIFT)
/* Control register 0 bits */
#define CR0_LOWPROT 0x0000000010000000ULL
#define CR0_SECONDARY 0x0000000004000000ULL
#define CR0_EDAT 0x0000000000800000ULL
#define CR0_AFP 0x0000000000040000ULL
#define CR0_VECTOR 0x0000000000020000ULL
#define CR0_EMERGENCY_SIGNAL_SC 0x0000000000004000ULL
#define CR0_EXTERNAL_CALL_SC 0x0000000000002000ULL
#define CR0_CKC_SC 0x0000000000000800ULL
#define CR0_CPU_TIMER_SC 0x0000000000000400ULL
#define CR0_SERVICE_SC 0x0000000000000200ULL
/* Control register 14 bits */
#define CR14_CHANNEL_REPORT_SC 0x0000000010000000ULL
/* MMU */
#define MMU_PRIMARY_IDX 0
#define MMU_SECONDARY_IDX 1
#define MMU_HOME_IDX 2
#define MMU_REAL_IDX 3
static inline int cpu_mmu_index(CPUS390XState *env, bool ifetch)
{
if (!(env->psw.mask & PSW_MASK_DAT)) {
return MMU_REAL_IDX;
}
if (ifetch) {
if ((env->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME) {
return MMU_HOME_IDX;
}
return MMU_PRIMARY_IDX;
}
switch (env->psw.mask & PSW_MASK_ASC) {
case PSW_ASC_PRIMARY:
return MMU_PRIMARY_IDX;
case PSW_ASC_SECONDARY:
return MMU_SECONDARY_IDX;
case PSW_ASC_HOME:
return MMU_HOME_IDX;
case PSW_ASC_ACCREG:
/* Fallthrough: access register mode is not yet supported */
default:
abort();
}
}
static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc,
target_ulong *cs_base, uint32_t *flags)
{
*pc = env->psw.addr;
*cs_base = env->ex_value;
*flags = (env->psw.mask >> FLAG_MASK_PSW_SHIFT) & FLAG_MASK_PSW;
if (env->cregs[0] & CR0_AFP) {
*flags |= FLAG_MASK_AFP;
}
if (env->cregs[0] & CR0_VECTOR) {
*flags |= FLAG_MASK_VECTOR;
}
}
/* PER bits from control register 9 */
#define PER_CR9_EVENT_BRANCH 0x80000000
#define PER_CR9_EVENT_IFETCH 0x40000000
#define PER_CR9_EVENT_STORE 0x20000000
#define PER_CR9_EVENT_STORE_REAL 0x08000000
#define PER_CR9_EVENT_NULLIFICATION 0x01000000
#define PER_CR9_CONTROL_BRANCH_ADDRESS 0x00800000
#define PER_CR9_CONTROL_ALTERATION 0x00200000
/* PER bits from the PER CODE/ATMID/AI in lowcore */
#define PER_CODE_EVENT_BRANCH 0x8000
#define PER_CODE_EVENT_IFETCH 0x4000
#define PER_CODE_EVENT_STORE 0x2000
#define PER_CODE_EVENT_STORE_REAL 0x0800
#define PER_CODE_EVENT_NULLIFICATION 0x0100
#define EXCP_EXT 1 /* external interrupt */
#define EXCP_SVC 2 /* supervisor call (syscall) */
#define EXCP_PGM 3 /* program interruption */
#define EXCP_RESTART 4 /* restart interrupt */
#define EXCP_STOP 5 /* stop interrupt */
#define EXCP_IO 7 /* I/O interrupt */
#define EXCP_MCHK 8 /* machine check */
#define INTERRUPT_EXT_CPU_TIMER (1 << 3)
#define INTERRUPT_EXT_CLOCK_COMPARATOR (1 << 4)
#define INTERRUPT_EXTERNAL_CALL (1 << 5)
#define INTERRUPT_EMERGENCY_SIGNAL (1 << 6)
#define INTERRUPT_RESTART (1 << 7)
#define INTERRUPT_STOP (1 << 8)
/* Program Status Word. */
#define S390_PSWM_REGNUM 0
#define S390_PSWA_REGNUM 1
/* General Purpose Registers. */
#define S390_R0_REGNUM 2
#define S390_R1_REGNUM 3
#define S390_R2_REGNUM 4
#define S390_R3_REGNUM 5
#define S390_R4_REGNUM 6
#define S390_R5_REGNUM 7
#define S390_R6_REGNUM 8
#define S390_R7_REGNUM 9
#define S390_R8_REGNUM 10
#define S390_R9_REGNUM 11
#define S390_R10_REGNUM 12
#define S390_R11_REGNUM 13
#define S390_R12_REGNUM 14
#define S390_R13_REGNUM 15
#define S390_R14_REGNUM 16
#define S390_R15_REGNUM 17
/* Total Core Registers. */
#define S390_NUM_CORE_REGS 18
static inline void setcc(S390CPU *cpu, uint64_t cc)
{
CPUS390XState *env = &cpu->env;
env->psw.mask &= ~(3ull << 44);
env->psw.mask |= (cc & 3) << 44;
env->cc_op = cc;
}
/* STSI */
#define STSI_R0_FC_MASK 0x00000000f0000000ULL
#define STSI_R0_FC_CURRENT 0x0000000000000000ULL
#define STSI_R0_FC_LEVEL_1 0x0000000010000000ULL
#define STSI_R0_FC_LEVEL_2 0x0000000020000000ULL
#define STSI_R0_FC_LEVEL_3 0x0000000030000000ULL
#define STSI_R0_RESERVED_MASK 0x000000000fffff00ULL
#define STSI_R0_SEL1_MASK 0x00000000000000ffULL
#define STSI_R1_RESERVED_MASK 0x00000000ffff0000ULL
#define STSI_R1_SEL2_MASK 0x000000000000ffffULL
/* Basic Machine Configuration */
typedef struct SysIB_111 {
uint8_t res1[32];
uint8_t manuf[16];
uint8_t type[4];
uint8_t res2[12];
uint8_t model[16];
uint8_t sequence[16];
uint8_t plant[4];
uint8_t res3[3996];
} SysIB_111;
QEMU_BUILD_BUG_ON(sizeof(SysIB_111) != 4096);
/* Basic Machine CPU */
typedef struct SysIB_121 {
uint8_t res1[80];
uint8_t sequence[16];
uint8_t plant[4];
uint8_t res2[2];
uint16_t cpu_addr;
uint8_t res3[3992];
} SysIB_121;
QEMU_BUILD_BUG_ON(sizeof(SysIB_121) != 4096);
/* Basic Machine CPUs */
typedef struct SysIB_122 {
uint8_t res1[32];
uint32_t capability;
uint16_t total_cpus;
uint16_t conf_cpus;
uint16_t standby_cpus;
uint16_t reserved_cpus;
uint16_t adjustments[2026];
} SysIB_122;
QEMU_BUILD_BUG_ON(sizeof(SysIB_122) != 4096);
/* LPAR CPU */
typedef struct SysIB_221 {
uint8_t res1[80];
uint8_t sequence[16];
uint8_t plant[4];
uint16_t cpu_id;
uint16_t cpu_addr;
uint8_t res3[3992];
} SysIB_221;
QEMU_BUILD_BUG_ON(sizeof(SysIB_221) != 4096);
/* LPAR CPUs */
typedef struct SysIB_222 {
uint8_t res1[32];
uint16_t lpar_num;
uint8_t res2;
uint8_t lcpuc;
uint16_t total_cpus;
uint16_t conf_cpus;
uint16_t standby_cpus;
uint16_t reserved_cpus;
uint8_t name[8];
uint32_t caf;
uint8_t res3[16];
uint16_t dedicated_cpus;
uint16_t shared_cpus;
uint8_t res4[4020];
} SysIB_222;
QEMU_BUILD_BUG_ON(sizeof(SysIB_222) != 4096);
/* VM CPUs */
typedef struct SysIB_322 {
uint8_t res1[31];
uint8_t count;
struct {
uint8_t res2[4];
uint16_t total_cpus;
uint16_t conf_cpus;
uint16_t standby_cpus;
uint16_t reserved_cpus;
uint8_t name[8];
uint32_t caf;
uint8_t cpi[16];
uint8_t res5[3];
uint8_t ext_name_encoding;
uint32_t res3;
uint8_t uuid[16];
} vm[8];
uint8_t res4[1504];
uint8_t ext_names[8][256];
} SysIB_322;
QEMU_BUILD_BUG_ON(sizeof(SysIB_322) != 4096);
typedef union SysIB {
SysIB_111 sysib_111;
SysIB_121 sysib_121;
SysIB_122 sysib_122;
SysIB_221 sysib_221;
SysIB_222 sysib_222;
SysIB_322 sysib_322;
} SysIB;
QEMU_BUILD_BUG_ON(sizeof(SysIB) != 4096);
/* MMU defines */
#define ASCE_ORIGIN (~0xfffULL) /* segment table origin */
#define ASCE_SUBSPACE 0x200 /* subspace group control */
#define ASCE_PRIVATE_SPACE 0x100 /* private space control */
#define ASCE_ALT_EVENT 0x80 /* storage alteration event control */
#define ASCE_SPACE_SWITCH 0x40 /* space switch event */
#define ASCE_REAL_SPACE 0x20 /* real space control */
#define ASCE_TYPE_MASK 0x0c /* asce table type mask */
#define ASCE_TYPE_REGION1 0x0c /* region first table type */
#define ASCE_TYPE_REGION2 0x08 /* region second table type */
#define ASCE_TYPE_REGION3 0x04 /* region third table type */
#define ASCE_TYPE_SEGMENT 0x00 /* segment table type */
#define ASCE_TABLE_LENGTH 0x03 /* region table length */
#define REGION_ENTRY_ORIGIN (~0xfffULL) /* region/segment table origin */
#define REGION_ENTRY_RO 0x200 /* region/segment protection bit */
#define REGION_ENTRY_TF 0xc0 /* region/segment table offset */
#define REGION_ENTRY_INV 0x20 /* invalid region table entry */
#define REGION_ENTRY_TYPE_MASK 0x0c /* region/segment table type mask */
#define REGION_ENTRY_TYPE_R1 0x0c /* region first table type */
#define REGION_ENTRY_TYPE_R2 0x08 /* region second table type */
#define REGION_ENTRY_TYPE_R3 0x04 /* region third table type */
#define REGION_ENTRY_LENGTH 0x03 /* region third length */
#define SEGMENT_ENTRY_ORIGIN (~0x7ffULL) /* segment table origin */
#define SEGMENT_ENTRY_FC 0x400 /* format control */
#define SEGMENT_ENTRY_RO 0x200 /* page protection bit */
#define SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */
#define VADDR_PX 0xff000 /* page index bits */
#define PAGE_RO 0x200 /* HW read-only bit */
#define PAGE_INVALID 0x400 /* HW invalid bit */
#define PAGE_RES0 0x800 /* bit must be zero */
#define SK_C (0x1 << 1)
#define SK_R (0x1 << 2)
#define SK_F (0x1 << 3)
#define SK_ACC_MASK (0xf << 4)
/* SIGP order codes */
#define SIGP_SENSE 0x01
#define SIGP_EXTERNAL_CALL 0x02
#define SIGP_EMERGENCY 0x03
#define SIGP_START 0x04
#define SIGP_STOP 0x05
#define SIGP_RESTART 0x06
#define SIGP_STOP_STORE_STATUS 0x09
#define SIGP_INITIAL_CPU_RESET 0x0b
#define SIGP_CPU_RESET 0x0c
#define SIGP_SET_PREFIX 0x0d
#define SIGP_STORE_STATUS_ADDR 0x0e
#define SIGP_SET_ARCH 0x12
#define SIGP_COND_EMERGENCY 0x13
#define SIGP_SENSE_RUNNING 0x15
#define SIGP_STORE_ADTL_STATUS 0x17
/* SIGP condition codes */
#define SIGP_CC_ORDER_CODE_ACCEPTED 0
#define SIGP_CC_STATUS_STORED 1
#define SIGP_CC_BUSY 2
#define SIGP_CC_NOT_OPERATIONAL 3
/* SIGP status bits */
#define SIGP_STAT_EQUIPMENT_CHECK 0x80000000UL
#define SIGP_STAT_NOT_RUNNING 0x00000400UL
#define SIGP_STAT_INCORRECT_STATE 0x00000200UL
#define SIGP_STAT_INVALID_PARAMETER 0x00000100UL
#define SIGP_STAT_EXT_CALL_PENDING 0x00000080UL
#define SIGP_STAT_STOPPED 0x00000040UL
#define SIGP_STAT_OPERATOR_INTERV 0x00000020UL
#define SIGP_STAT_CHECK_STOP 0x00000010UL
#define SIGP_STAT_INOPERATIVE 0x00000004UL
#define SIGP_STAT_INVALID_ORDER 0x00000002UL
#define SIGP_STAT_RECEIVER_CHECK 0x00000001UL
/* SIGP SET ARCHITECTURE modes */
#define SIGP_MODE_ESA_S390 0
#define SIGP_MODE_Z_ARCH_TRANS_ALL_PSW 1
#define SIGP_MODE_Z_ARCH_TRANS_CUR_PSW 2
/* SIGP order code mask corresponding to bit positions 56-63 */
#define SIGP_ORDER_MASK 0x000000ff
/* machine check interruption code */
/* subclasses */
#define MCIC_SC_SD 0x8000000000000000ULL
#define MCIC_SC_PD 0x4000000000000000ULL
#define MCIC_SC_SR 0x2000000000000000ULL
#define MCIC_SC_CD 0x0800000000000000ULL
#define MCIC_SC_ED 0x0400000000000000ULL
#define MCIC_SC_DG 0x0100000000000000ULL
#define MCIC_SC_W 0x0080000000000000ULL
#define MCIC_SC_CP 0x0040000000000000ULL
#define MCIC_SC_SP 0x0020000000000000ULL
#define MCIC_SC_CK 0x0010000000000000ULL
/* subclass modifiers */
#define MCIC_SCM_B 0x0002000000000000ULL
#define MCIC_SCM_DA 0x0000000020000000ULL
#define MCIC_SCM_AP 0x0000000000080000ULL
/* storage errors */
#define MCIC_SE_SE 0x0000800000000000ULL
#define MCIC_SE_SC 0x0000400000000000ULL
#define MCIC_SE_KE 0x0000200000000000ULL
#define MCIC_SE_DS 0x0000100000000000ULL
#define MCIC_SE_IE 0x0000000080000000ULL
/* validity bits */
#define MCIC_VB_WP 0x0000080000000000ULL
#define MCIC_VB_MS 0x0000040000000000ULL
#define MCIC_VB_PM 0x0000020000000000ULL
#define MCIC_VB_IA 0x0000010000000000ULL
#define MCIC_VB_FA 0x0000008000000000ULL
#define MCIC_VB_VR 0x0000004000000000ULL
#define MCIC_VB_EC 0x0000002000000000ULL
#define MCIC_VB_FP 0x0000001000000000ULL
#define MCIC_VB_GR 0x0000000800000000ULL
#define MCIC_VB_CR 0x0000000400000000ULL
#define MCIC_VB_ST 0x0000000100000000ULL
#define MCIC_VB_AR 0x0000000040000000ULL
#define MCIC_VB_GS 0x0000000008000000ULL
#define MCIC_VB_PR 0x0000000000200000ULL
#define MCIC_VB_FC 0x0000000000100000ULL
#define MCIC_VB_CT 0x0000000000020000ULL
#define MCIC_VB_CC 0x0000000000010000ULL
static inline uint64_t s390_build_validity_mcic(void)
{
uint64_t mcic;
/*
* Indicate all validity bits (no damage) only. Other bits have to be
* added by the caller. (storage errors, subclasses and subclass modifiers)
*/
mcic = MCIC_VB_WP | MCIC_VB_MS | MCIC_VB_PM | MCIC_VB_IA | MCIC_VB_FP |
MCIC_VB_GR | MCIC_VB_CR | MCIC_VB_ST | MCIC_VB_AR | MCIC_VB_PR |
MCIC_VB_FC | MCIC_VB_CT | MCIC_VB_CC;
if (s390_has_feat(S390_FEAT_VECTOR)) {
mcic |= MCIC_VB_VR;
}
if (s390_has_feat(S390_FEAT_GUARDED_STORAGE)) {
mcic |= MCIC_VB_GS;
}
return mcic;
}
static inline void s390_do_cpu_full_reset(CPUState *cs, run_on_cpu_data arg)
{
cpu_reset(cs);
}
static inline void s390_do_cpu_reset(CPUState *cs, run_on_cpu_data arg)
{
S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
scc->cpu_reset(cs);
}
static inline void s390_do_cpu_initial_reset(CPUState *cs, run_on_cpu_data arg)
{
S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
scc->initial_cpu_reset(cs);
}
static inline void s390_do_cpu_load_normal(CPUState *cs, run_on_cpu_data arg)
{
S390CPUClass *scc = S390_CPU_GET_CLASS(cs);
scc->load_normal(cs);
}
/* cpu.c */
void s390_crypto_reset(void);
int s390_set_memory_limit(uint64_t new_limit, uint64_t *hw_limit);
void s390_set_max_pagesize(uint64_t pagesize, Error **errp);
void s390_cmma_reset(void);
void s390_enable_css_support(S390CPU *cpu);
int s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch_id,
int vq, bool assign);
#ifndef CONFIG_USER_ONLY
unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu);
#else
static inline unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu)
{
return 0;
}
#endif /* CONFIG_USER_ONLY */
static inline uint8_t s390_cpu_get_state(S390CPU *cpu)
{
return cpu->env.cpu_state;
}
/* cpu_models.c */
void s390_cpu_list(void);
#define cpu_list s390_cpu_list
void s390_set_qemu_cpu_model(uint16_t type, uint8_t gen, uint8_t ec_ga,
const S390FeatInit feat_init);
/* helper.c */
#define S390_CPU_TYPE_SUFFIX "-" TYPE_S390_CPU
#define S390_CPU_TYPE_NAME(name) (name S390_CPU_TYPE_SUFFIX)
#define CPU_RESOLVING_TYPE TYPE_S390_CPU
/* you can call this signal handler from your SIGBUS and SIGSEGV
signal handlers to inform the virtual CPU of exceptions. non zero
is returned if the signal was handled by the virtual CPU. */
int cpu_s390x_signal_handler(int host_signum, void *pinfo, void *puc);
#define cpu_signal_handler cpu_s390x_signal_handler
/* interrupt.c */
void s390_crw_mchk(void);
void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr,
uint32_t io_int_parm, uint32_t io_int_word);
/* automatically detect the instruction length */
#define ILEN_AUTO 0xff
#define RA_IGNORED 0
void s390_program_interrupt(CPUS390XState *env, uint32_t code, int ilen,
uintptr_t ra);
/* service interrupts are floating therefore we must not pass an cpustate */
void s390_sclp_extint(uint32_t parm);
/* mmu_helper.c */
int s390_cpu_virt_mem_rw(S390CPU *cpu, vaddr laddr, uint8_t ar, void *hostbuf,
int len, bool is_write);
#define s390_cpu_virt_mem_read(cpu, laddr, ar, dest, len) \
s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, false)
#define s390_cpu_virt_mem_write(cpu, laddr, ar, dest, len) \
s390_cpu_virt_mem_rw(cpu, laddr, ar, dest, len, true)
#define s390_cpu_virt_mem_check_read(cpu, laddr, ar, len) \
s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, false)
#define s390_cpu_virt_mem_check_write(cpu, laddr, ar, len) \
s390_cpu_virt_mem_rw(cpu, laddr, ar, NULL, len, true)
void s390_cpu_virt_mem_handle_exc(S390CPU *cpu, uintptr_t ra);
/* sigp.c */
int s390_cpu_restart(S390CPU *cpu);
void s390_init_sigp(void);
/* outside of target/s390x/ */
S390CPU *s390_cpu_addr2state(uint16_t cpu_addr);
typedef CPUS390XState CPUArchState;
typedef S390CPU ArchCPU;
#include "exec/cpu-all.h"
#endif
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