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/*
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 * S/390 virtual CPU header
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 *
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 *  Copyright (c) 2009 Ulrich Hecht
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 *
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 * This library is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
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 * License as published by the Free Software Foundation; either
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 * version 2 of the License, or (at your option) any later version.
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 *
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 * This library is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * Lesser General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public
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 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
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 */
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#ifndef CPU_S390X_H
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#define CPU_S390X_H
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#include "config.h"
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#include "qemu-common.h"
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#define TARGET_LONG_BITS 64
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#define ELF_MACHINE        EM_S390
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#define CPUArchState struct CPUS390XState
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#include "exec/cpu-defs.h"
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#define TARGET_PAGE_BITS 12
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#define TARGET_PHYS_ADDR_SPACE_BITS 64
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#define TARGET_VIRT_ADDR_SPACE_BITS 64
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#include "exec/cpu-all.h"
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#include "fpu/softfloat.h"
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#define NB_MMU_MODES 3
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#define MMU_MODE0_SUFFIX _primary
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#define MMU_MODE1_SUFFIX _secondary
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#define MMU_MODE2_SUFFIX _home
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#define MMU_USER_IDX 1
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#define MAX_EXT_QUEUE 16
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typedef struct PSW {
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    uint64_t mask;
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    uint64_t addr;
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} PSW;
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typedef struct ExtQueue {
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    uint32_t code;
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    uint32_t param;
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    uint32_t param64;
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} ExtQueue;
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typedef struct CPUS390XState {
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    uint64_t regs[16];     /* GP registers */
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    CPU_DoubleU fregs[16]; /* FP registers */
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    uint32_t aregs[16];    /* access registers */
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    uint32_t fpc;          /* floating-point control register */
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    uint32_t cc_op;
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    float_status fpu_status; /* passed to softfloat lib */
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    /* The low part of a 128-bit return, or remainder of a divide.  */
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    uint64_t retxl;
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    PSW psw;
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    uint64_t cc_src;
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    uint64_t cc_dst;
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    uint64_t cc_vr;
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    uint64_t __excp_addr;
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    uint64_t psa;
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    uint32_t int_pgm_code;
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    uint32_t int_pgm_ilen;
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    uint32_t int_svc_code;
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    uint32_t int_svc_ilen;
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    uint64_t cregs[16]; /* control registers */
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    ExtQueue ext_queue[MAX_EXT_QUEUE];
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    int pending_int;
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    int ext_index;
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    CPU_COMMON
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    /* reset does memset(0) up to here */
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    int cpu_num;
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    uint8_t *storage_keys;
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    uint64_t tod_offset;
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    uint64_t tod_basetime;
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    QEMUTimer *tod_timer;
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    QEMUTimer *cpu_timer;
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} CPUS390XState;
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#include "cpu-qom.h"
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#if defined(CONFIG_USER_ONLY)
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static inline void cpu_clone_regs(CPUS390XState *env, target_ulong newsp)
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{
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    if (newsp) {
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        env->regs[15] = newsp;
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    }
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    env->regs[0] = 0;
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}
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#endif
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/* Interrupt Codes */
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/* Program Interrupts */
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#define PGM_OPERATION                   0x0001
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#define PGM_PRIVILEGED                  0x0002
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#define PGM_EXECUTE                     0x0003
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#define PGM_PROTECTION                  0x0004
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#define PGM_ADDRESSING                  0x0005
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#define PGM_SPECIFICATION               0x0006
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#define PGM_DATA                        0x0007
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#define PGM_FIXPT_OVERFLOW              0x0008
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#define PGM_FIXPT_DIVIDE                0x0009
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#define PGM_DEC_OVERFLOW                0x000a
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#define PGM_DEC_DIVIDE                  0x000b
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#define PGM_HFP_EXP_OVERFLOW            0x000c
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#define PGM_HFP_EXP_UNDERFLOW           0x000d
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#define PGM_HFP_SIGNIFICANCE            0x000e
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#define PGM_HFP_DIVIDE                  0x000f
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#define PGM_SEGMENT_TRANS               0x0010
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#define PGM_PAGE_TRANS                  0x0011
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#define PGM_TRANS_SPEC                  0x0012
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#define PGM_SPECIAL_OP                  0x0013
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#define PGM_OPERAND                     0x0015
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#define PGM_TRACE_TABLE                 0x0016
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#define PGM_SPACE_SWITCH                0x001c
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#define PGM_HFP_SQRT                    0x001d
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#define PGM_PC_TRANS_SPEC               0x001f
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#define PGM_AFX_TRANS                   0x0020
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#define PGM_ASX_TRANS                   0x0021
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#define PGM_LX_TRANS                    0x0022
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#define PGM_EX_TRANS                    0x0023
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#define PGM_PRIM_AUTH                   0x0024
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#define PGM_SEC_AUTH                    0x0025
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#define PGM_ALET_SPEC                   0x0028
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#define PGM_ALEN_SPEC                   0x0029
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#define PGM_ALE_SEQ                     0x002a
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#define PGM_ASTE_VALID                  0x002b
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#define PGM_ASTE_SEQ                    0x002c
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#define PGM_EXT_AUTH                    0x002d
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#define PGM_STACK_FULL                  0x0030
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#define PGM_STACK_EMPTY                 0x0031
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#define PGM_STACK_SPEC                  0x0032
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#define PGM_STACK_TYPE                  0x0033
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#define PGM_STACK_OP                    0x0034
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#define PGM_ASCE_TYPE                   0x0038
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#define PGM_REG_FIRST_TRANS             0x0039
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#define PGM_REG_SEC_TRANS               0x003a
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#define PGM_REG_THIRD_TRANS             0x003b
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#define PGM_MONITOR                     0x0040
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#define PGM_PER                         0x0080
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#define PGM_CRYPTO                      0x0119
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/* External Interrupts */
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#define EXT_INTERRUPT_KEY               0x0040
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#define EXT_CLOCK_COMP                  0x1004
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#define EXT_CPU_TIMER                   0x1005
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#define EXT_MALFUNCTION                 0x1200
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#define EXT_EMERGENCY                   0x1201
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#define EXT_EXTERNAL_CALL               0x1202
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#define EXT_ETR                         0x1406
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#define EXT_SERVICE                     0x2401
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#define EXT_VIRTIO                      0x2603
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/* PSW defines */
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#undef PSW_MASK_PER
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#undef PSW_MASK_DAT
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#undef PSW_MASK_IO
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#undef PSW_MASK_EXT
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#undef PSW_MASK_KEY
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#undef PSW_SHIFT_KEY
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#undef PSW_MASK_MCHECK
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#undef PSW_MASK_WAIT
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#undef PSW_MASK_PSTATE
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#undef PSW_MASK_ASC
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#undef PSW_MASK_CC
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#undef PSW_MASK_PM
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#undef PSW_MASK_64
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#define PSW_MASK_PER            0x4000000000000000ULL
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#define PSW_MASK_DAT            0x0400000000000000ULL
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#define PSW_MASK_IO             0x0200000000000000ULL
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#define PSW_MASK_EXT            0x0100000000000000ULL
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#define PSW_MASK_KEY            0x00F0000000000000ULL
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#define PSW_SHIFT_KEY           56
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#define PSW_MASK_MCHECK         0x0004000000000000ULL
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#define PSW_MASK_WAIT           0x0002000000000000ULL
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#define PSW_MASK_PSTATE         0x0001000000000000ULL
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#define PSW_MASK_ASC            0x0000C00000000000ULL
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#define PSW_MASK_CC             0x0000300000000000ULL
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#define PSW_MASK_PM             0x00000F0000000000ULL
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#define PSW_MASK_64             0x0000000100000000ULL
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#define PSW_MASK_32             0x0000000080000000ULL
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#undef PSW_ASC_PRIMARY
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#undef PSW_ASC_ACCREG
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#undef PSW_ASC_SECONDARY
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#undef PSW_ASC_HOME
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#define PSW_ASC_PRIMARY         0x0000000000000000ULL
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#define PSW_ASC_ACCREG          0x0000400000000000ULL
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#define PSW_ASC_SECONDARY       0x0000800000000000ULL
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#define PSW_ASC_HOME            0x0000C00000000000ULL
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/* tb flags */
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#define FLAG_MASK_PER           (PSW_MASK_PER    >> 32)
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#define FLAG_MASK_DAT           (PSW_MASK_DAT    >> 32)
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#define FLAG_MASK_IO            (PSW_MASK_IO     >> 32)
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#define FLAG_MASK_EXT           (PSW_MASK_EXT    >> 32)
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#define FLAG_MASK_KEY           (PSW_MASK_KEY    >> 32)
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#define FLAG_MASK_MCHECK        (PSW_MASK_MCHECK >> 32)
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#define FLAG_MASK_WAIT          (PSW_MASK_WAIT   >> 32)
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#define FLAG_MASK_PSTATE        (PSW_MASK_PSTATE >> 32)
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#define FLAG_MASK_ASC           (PSW_MASK_ASC    >> 32)
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#define FLAG_MASK_CC            (PSW_MASK_CC     >> 32)
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#define FLAG_MASK_PM            (PSW_MASK_PM     >> 32)
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#define FLAG_MASK_64            (PSW_MASK_64     >> 32)
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#define FLAG_MASK_32            0x00001000
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static inline int cpu_mmu_index (CPUS390XState *env)
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{
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    if (env->psw.mask & PSW_MASK_PSTATE) {
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        return 1;
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    }
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    return 0;
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}
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static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc,
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                                        target_ulong *cs_base, int *flags)
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{
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    *pc = env->psw.addr;
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    *cs_base = 0;
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    *flags = ((env->psw.mask >> 32) & ~FLAG_MASK_CC) |
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             ((env->psw.mask & PSW_MASK_32) ? FLAG_MASK_32 : 0);
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}
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/* While the PoO talks about ILC (a number between 1-3) what is actually
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   stored in LowCore is shifted left one bit (an even between 2-6).  As
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   this is the actual length of the insn and therefore more useful, that
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   is what we want to pass around and manipulate.  To make sure that we
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   have applied this distinction universally, rename the "ILC" to "ILEN".  */
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static inline int get_ilen(uint8_t opc)
265
{
266
    switch (opc >> 6) {
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    case 0:
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        return 2;
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    case 1:
270
    case 2:
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        return 4;
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    default:
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        return 6;
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    }
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}
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#ifndef CONFIG_USER_ONLY
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/* In several cases of runtime exceptions, we havn't recorded the true
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   instruction length.  Use these codes when raising exceptions in order
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   to re-compute the length by examining the insn in memory.  */
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#define ILEN_LATER       0x20
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#define ILEN_LATER_INC   0x21
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#endif
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S390CPU *cpu_s390x_init(const char *cpu_model);
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void s390x_translate_init(void);
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int cpu_s390x_exec(CPUS390XState *s);
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void cpu_s390x_close(CPUS390XState *s);
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void do_interrupt (CPUS390XState *env);
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/* you can call this signal handler from your SIGBUS and SIGSEGV
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   signal handlers to inform the virtual CPU of exceptions. non zero
293
   is returned if the signal was handled by the virtual CPU.  */
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int cpu_s390x_signal_handler(int host_signum, void *pinfo,
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                           void *puc);
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int cpu_s390x_handle_mmu_fault (CPUS390XState *env, target_ulong address, int rw,
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                                int mmu_idx);
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#define cpu_handle_mmu_fault cpu_s390x_handle_mmu_fault
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#ifndef CONFIG_USER_ONLY
302
void s390x_tod_timer(void *opaque);
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void s390x_cpu_timer(void *opaque);
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int s390_virtio_hypercall(CPUS390XState *env, uint64_t mem, uint64_t hypercall);
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#ifdef CONFIG_KVM
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void kvm_s390_interrupt(S390CPU *cpu, int type, uint32_t code);
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void kvm_s390_virtio_irq(S390CPU *cpu, int config_change, uint64_t token);
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void kvm_s390_interrupt_internal(S390CPU *cpu, int type, uint32_t parm,
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                                 uint64_t parm64, int vm);
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#else
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static inline void kvm_s390_interrupt(S390CPU *cpu, int type, uint32_t code)
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{
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}
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static inline void kvm_s390_virtio_irq(S390CPU *cpu, int config_change,
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                                       uint64_t token)
319
{
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}
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static inline void kvm_s390_interrupt_internal(S390CPU *cpu, int type,
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                                               uint32_t parm, uint64_t parm64,
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                                               int vm)
325
{
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}
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#endif
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S390CPU *s390_cpu_addr2state(uint16_t cpu_addr);
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void s390_add_running_cpu(CPUS390XState *env);
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unsigned s390_del_running_cpu(CPUS390XState *env);
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/* service interrupts are floating therefore we must not pass an cpustate */
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void s390_sclp_extint(uint32_t parm);
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/* from s390-virtio-bus */
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extern const hwaddr virtio_size;
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#else
339
static inline void s390_add_running_cpu(CPUS390XState *env)
340
{
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}
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static inline unsigned s390_del_running_cpu(CPUS390XState *env)
344
{
345
    return 0;
346
}
347
#endif
348
void cpu_lock(void);
349
void cpu_unlock(void);
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static inline void cpu_set_tls(CPUS390XState *env, target_ulong newtls)
352
{
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    env->aregs[0] = newtls >> 32;
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    env->aregs[1] = newtls & 0xffffffffULL;
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}
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#define cpu_init(model) (&cpu_s390x_init(model)->env)
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#define cpu_exec cpu_s390x_exec
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#define cpu_gen_code cpu_s390x_gen_code
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#define cpu_signal_handler cpu_s390x_signal_handler
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#include "exec/exec-all.h"
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#define EXCP_EXT 1 /* external interrupt */
365
#define EXCP_SVC 2 /* supervisor call (syscall) */
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#define EXCP_PGM 3 /* program interruption */
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#define INTERRUPT_EXT        (1 << 0)
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#define INTERRUPT_TOD        (1 << 1)
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#define INTERRUPT_CPUTIMER   (1 << 2)
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/* Program Status Word.  */
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#define S390_PSWM_REGNUM 0
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#define S390_PSWA_REGNUM 1
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/* General Purpose Registers.  */
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#define S390_R0_REGNUM 2
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#define S390_R1_REGNUM 3
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#define S390_R2_REGNUM 4
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#define S390_R3_REGNUM 5
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#define S390_R4_REGNUM 6
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#define S390_R5_REGNUM 7
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#define S390_R6_REGNUM 8
383
#define S390_R7_REGNUM 9
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#define S390_R8_REGNUM 10
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#define S390_R9_REGNUM 11
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#define S390_R10_REGNUM 12
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#define S390_R11_REGNUM 13
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#define S390_R12_REGNUM 14
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#define S390_R13_REGNUM 15
390
#define S390_R14_REGNUM 16
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#define S390_R15_REGNUM 17
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/* Access Registers.  */
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#define S390_A0_REGNUM 18
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#define S390_A1_REGNUM 19
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#define S390_A2_REGNUM 20
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#define S390_A3_REGNUM 21
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#define S390_A4_REGNUM 22
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#define S390_A5_REGNUM 23
399
#define S390_A6_REGNUM 24
400
#define S390_A7_REGNUM 25
401
#define S390_A8_REGNUM 26
402
#define S390_A9_REGNUM 27
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#define S390_A10_REGNUM 28
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#define S390_A11_REGNUM 29
405
#define S390_A12_REGNUM 30
406
#define S390_A13_REGNUM 31
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#define S390_A14_REGNUM 32
408
#define S390_A15_REGNUM 33
409
/* Floating Point Control Word.  */
410
#define S390_FPC_REGNUM 34
411
/* Floating Point Registers.  */
412
#define S390_F0_REGNUM 35
413
#define S390_F1_REGNUM 36
414
#define S390_F2_REGNUM 37
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#define S390_F3_REGNUM 38
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#define S390_F4_REGNUM 39
417
#define S390_F5_REGNUM 40
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#define S390_F6_REGNUM 41
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#define S390_F7_REGNUM 42
420
#define S390_F8_REGNUM 43
421
#define S390_F9_REGNUM 44
422
#define S390_F10_REGNUM 45
423
#define S390_F11_REGNUM 46
424
#define S390_F12_REGNUM 47
425
#define S390_F13_REGNUM 48
426
#define S390_F14_REGNUM 49
427
#define S390_F15_REGNUM 50
428
/* Total.  */
429
#define S390_NUM_REGS 51
430

    
431
/* CC optimization */
432

    
433
enum cc_op {
434
    CC_OP_CONST0 = 0,           /* CC is 0 */
435
    CC_OP_CONST1,               /* CC is 1 */
436
    CC_OP_CONST2,               /* CC is 2 */
437
    CC_OP_CONST3,               /* CC is 3 */
438

    
439
    CC_OP_DYNAMIC,              /* CC calculation defined by env->cc_op */
440
    CC_OP_STATIC,               /* CC value is env->cc_op */
441

    
442
    CC_OP_NZ,                   /* env->cc_dst != 0 */
443
    CC_OP_LTGT_32,              /* signed less/greater than (32bit) */
444
    CC_OP_LTGT_64,              /* signed less/greater than (64bit) */
445
    CC_OP_LTUGTU_32,            /* unsigned less/greater than (32bit) */
446
    CC_OP_LTUGTU_64,            /* unsigned less/greater than (64bit) */
447
    CC_OP_LTGT0_32,             /* signed less/greater than 0 (32bit) */
448
    CC_OP_LTGT0_64,             /* signed less/greater than 0 (64bit) */
449

    
450
    CC_OP_ADD_64,               /* overflow on add (64bit) */
451
    CC_OP_ADDU_64,              /* overflow on unsigned add (64bit) */
452
    CC_OP_ADDC_64,              /* overflow on unsigned add-carry (64bit) */
453
    CC_OP_SUB_64,               /* overflow on subtraction (64bit) */
454
    CC_OP_SUBU_64,              /* overflow on unsigned subtraction (64bit) */
455
    CC_OP_SUBB_64,              /* overflow on unsigned sub-borrow (64bit) */
456
    CC_OP_ABS_64,               /* sign eval on abs (64bit) */
457
    CC_OP_NABS_64,              /* sign eval on nabs (64bit) */
458

    
459
    CC_OP_ADD_32,               /* overflow on add (32bit) */
460
    CC_OP_ADDU_32,              /* overflow on unsigned add (32bit) */
461
    CC_OP_ADDC_32,              /* overflow on unsigned add-carry (32bit) */
462
    CC_OP_SUB_32,               /* overflow on subtraction (32bit) */
463
    CC_OP_SUBU_32,              /* overflow on unsigned subtraction (32bit) */
464
    CC_OP_SUBB_32,              /* overflow on unsigned sub-borrow (32bit) */
465
    CC_OP_ABS_32,               /* sign eval on abs (64bit) */
466
    CC_OP_NABS_32,              /* sign eval on nabs (64bit) */
467

    
468
    CC_OP_COMP_32,              /* complement */
469
    CC_OP_COMP_64,              /* complement */
470

    
471
    CC_OP_TM_32,                /* test under mask (32bit) */
472
    CC_OP_TM_64,                /* test under mask (64bit) */
473

    
474
    CC_OP_NZ_F32,               /* FP dst != 0 (32bit) */
475
    CC_OP_NZ_F64,               /* FP dst != 0 (64bit) */
476
    CC_OP_NZ_F128,              /* FP dst != 0 (128bit) */
477

    
478
    CC_OP_ICM,                  /* insert characters under mask */
479
    CC_OP_SLA_32,               /* Calculate shift left signed (32bit) */
480
    CC_OP_SLA_64,               /* Calculate shift left signed (64bit) */
481
    CC_OP_FLOGR,                /* find leftmost one */
482
    CC_OP_MAX
483
};
484

    
485
static const char *cc_names[] = {
486
    [CC_OP_CONST0]    = "CC_OP_CONST0",
487
    [CC_OP_CONST1]    = "CC_OP_CONST1",
488
    [CC_OP_CONST2]    = "CC_OP_CONST2",
489
    [CC_OP_CONST3]    = "CC_OP_CONST3",
490
    [CC_OP_DYNAMIC]   = "CC_OP_DYNAMIC",
491
    [CC_OP_STATIC]    = "CC_OP_STATIC",
492
    [CC_OP_NZ]        = "CC_OP_NZ",
493
    [CC_OP_LTGT_32]   = "CC_OP_LTGT_32",
494
    [CC_OP_LTGT_64]   = "CC_OP_LTGT_64",
495
    [CC_OP_LTUGTU_32] = "CC_OP_LTUGTU_32",
496
    [CC_OP_LTUGTU_64] = "CC_OP_LTUGTU_64",
497
    [CC_OP_LTGT0_32]  = "CC_OP_LTGT0_32",
498
    [CC_OP_LTGT0_64]  = "CC_OP_LTGT0_64",
499
    [CC_OP_ADD_64]    = "CC_OP_ADD_64",
500
    [CC_OP_ADDU_64]   = "CC_OP_ADDU_64",
501
    [CC_OP_ADDC_64]   = "CC_OP_ADDC_64",
502
    [CC_OP_SUB_64]    = "CC_OP_SUB_64",
503
    [CC_OP_SUBU_64]   = "CC_OP_SUBU_64",
504
    [CC_OP_SUBB_64]   = "CC_OP_SUBB_64",
505
    [CC_OP_ABS_64]    = "CC_OP_ABS_64",
506
    [CC_OP_NABS_64]   = "CC_OP_NABS_64",
507
    [CC_OP_ADD_32]    = "CC_OP_ADD_32",
508
    [CC_OP_ADDU_32]   = "CC_OP_ADDU_32",
509
    [CC_OP_ADDC_32]   = "CC_OP_ADDC_32",
510
    [CC_OP_SUB_32]    = "CC_OP_SUB_32",
511
    [CC_OP_SUBU_32]   = "CC_OP_SUBU_32",
512
    [CC_OP_SUBB_32]   = "CC_OP_SUBB_32",
513
    [CC_OP_ABS_32]    = "CC_OP_ABS_32",
514
    [CC_OP_NABS_32]   = "CC_OP_NABS_32",
515
    [CC_OP_COMP_32]   = "CC_OP_COMP_32",
516
    [CC_OP_COMP_64]   = "CC_OP_COMP_64",
517
    [CC_OP_TM_32]     = "CC_OP_TM_32",
518
    [CC_OP_TM_64]     = "CC_OP_TM_64",
519
    [CC_OP_NZ_F32]    = "CC_OP_NZ_F32",
520
    [CC_OP_NZ_F64]    = "CC_OP_NZ_F64",
521
    [CC_OP_NZ_F128]   = "CC_OP_NZ_F128",
522
    [CC_OP_ICM]       = "CC_OP_ICM",
523
    [CC_OP_SLA_32]    = "CC_OP_SLA_32",
524
    [CC_OP_SLA_64]    = "CC_OP_SLA_64",
525
    [CC_OP_FLOGR]     = "CC_OP_FLOGR",
526
};
527

    
528
static inline const char *cc_name(int cc_op)
529
{
530
    return cc_names[cc_op];
531
}
532

    
533
typedef struct LowCore
534
{
535
    /* prefix area: defined by architecture */
536
    uint32_t        ccw1[2];                  /* 0x000 */
537
    uint32_t        ccw2[4];                  /* 0x008 */
538
    uint8_t         pad1[0x80-0x18];          /* 0x018 */
539
    uint32_t        ext_params;               /* 0x080 */
540
    uint16_t        cpu_addr;                 /* 0x084 */
541
    uint16_t        ext_int_code;             /* 0x086 */
542
    uint16_t        svc_ilen;                 /* 0x088 */
543
    uint16_t        svc_code;                 /* 0x08a */
544
    uint16_t        pgm_ilen;                 /* 0x08c */
545
    uint16_t        pgm_code;                 /* 0x08e */
546
    uint32_t        data_exc_code;            /* 0x090 */
547
    uint16_t        mon_class_num;            /* 0x094 */
548
    uint16_t        per_perc_atmid;           /* 0x096 */
549
    uint64_t        per_address;              /* 0x098 */
550
    uint8_t         exc_access_id;            /* 0x0a0 */
551
    uint8_t         per_access_id;            /* 0x0a1 */
552
    uint8_t         op_access_id;             /* 0x0a2 */
553
    uint8_t         ar_access_id;             /* 0x0a3 */
554
    uint8_t         pad2[0xA8-0xA4];          /* 0x0a4 */
555
    uint64_t        trans_exc_code;           /* 0x0a8 */
556
    uint64_t        monitor_code;             /* 0x0b0 */
557
    uint16_t        subchannel_id;            /* 0x0b8 */
558
    uint16_t        subchannel_nr;            /* 0x0ba */
559
    uint32_t        io_int_parm;              /* 0x0bc */
560
    uint32_t        io_int_word;              /* 0x0c0 */
561
    uint8_t         pad3[0xc8-0xc4];          /* 0x0c4 */
562
    uint32_t        stfl_fac_list;            /* 0x0c8 */
563
    uint8_t         pad4[0xe8-0xcc];          /* 0x0cc */
564
    uint32_t        mcck_interruption_code[2]; /* 0x0e8 */
565
    uint8_t         pad5[0xf4-0xf0];          /* 0x0f0 */
566
    uint32_t        external_damage_code;     /* 0x0f4 */
567
    uint64_t        failing_storage_address;  /* 0x0f8 */
568
    uint8_t         pad6[0x120-0x100];        /* 0x100 */
569
    PSW             restart_old_psw;          /* 0x120 */
570
    PSW             external_old_psw;         /* 0x130 */
571
    PSW             svc_old_psw;              /* 0x140 */
572
    PSW             program_old_psw;          /* 0x150 */
573
    PSW             mcck_old_psw;             /* 0x160 */
574
    PSW             io_old_psw;               /* 0x170 */
575
    uint8_t         pad7[0x1a0-0x180];        /* 0x180 */
576
    PSW             restart_psw;              /* 0x1a0 */
577
    PSW             external_new_psw;         /* 0x1b0 */
578
    PSW             svc_new_psw;              /* 0x1c0 */
579
    PSW             program_new_psw;          /* 0x1d0 */
580
    PSW             mcck_new_psw;             /* 0x1e0 */
581
    PSW             io_new_psw;               /* 0x1f0 */
582
    PSW             return_psw;               /* 0x200 */
583
    uint8_t         irb[64];                  /* 0x210 */
584
    uint64_t        sync_enter_timer;         /* 0x250 */
585
    uint64_t        async_enter_timer;        /* 0x258 */
586
    uint64_t        exit_timer;               /* 0x260 */
587
    uint64_t        last_update_timer;        /* 0x268 */
588
    uint64_t        user_timer;               /* 0x270 */
589
    uint64_t        system_timer;             /* 0x278 */
590
    uint64_t        last_update_clock;        /* 0x280 */
591
    uint64_t        steal_clock;              /* 0x288 */
592
    PSW             return_mcck_psw;          /* 0x290 */
593
    uint8_t         pad8[0xc00-0x2a0];        /* 0x2a0 */
594
    /* System info area */
595
    uint64_t        save_area[16];            /* 0xc00 */
596
    uint8_t         pad9[0xd40-0xc80];        /* 0xc80 */
597
    uint64_t        kernel_stack;             /* 0xd40 */
598
    uint64_t        thread_info;              /* 0xd48 */
599
    uint64_t        async_stack;              /* 0xd50 */
600
    uint64_t        kernel_asce;              /* 0xd58 */
601
    uint64_t        user_asce;                /* 0xd60 */
602
    uint64_t        panic_stack;              /* 0xd68 */
603
    uint64_t        user_exec_asce;           /* 0xd70 */
604
    uint8_t         pad10[0xdc0-0xd78];       /* 0xd78 */
605

    
606
    /* SMP info area: defined by DJB */
607
    uint64_t        clock_comparator;         /* 0xdc0 */
608
    uint64_t        ext_call_fast;            /* 0xdc8 */
609
    uint64_t        percpu_offset;            /* 0xdd0 */
610
    uint64_t        current_task;             /* 0xdd8 */
611
    uint32_t        softirq_pending;          /* 0xde0 */
612
    uint32_t        pad_0x0de4;               /* 0xde4 */
613
    uint64_t        int_clock;                /* 0xde8 */
614
    uint8_t         pad12[0xe00-0xdf0];       /* 0xdf0 */
615

    
616
    /* 0xe00 is used as indicator for dump tools */
617
    /* whether the kernel died with panic() or not */
618
    uint32_t        panic_magic;              /* 0xe00 */
619

    
620
    uint8_t         pad13[0x11b8-0xe04];      /* 0xe04 */
621

    
622
    /* 64 bit extparam used for pfault, diag 250 etc  */
623
    uint64_t        ext_params2;               /* 0x11B8 */
624

    
625
    uint8_t         pad14[0x1200-0x11C0];      /* 0x11C0 */
626

    
627
    /* System info area */
628

    
629
    uint64_t        floating_pt_save_area[16]; /* 0x1200 */
630
    uint64_t        gpregs_save_area[16];      /* 0x1280 */
631
    uint32_t        st_status_fixed_logout[4]; /* 0x1300 */
632
    uint8_t         pad15[0x1318-0x1310];      /* 0x1310 */
633
    uint32_t        prefixreg_save_area;       /* 0x1318 */
634
    uint32_t        fpt_creg_save_area;        /* 0x131c */
635
    uint8_t         pad16[0x1324-0x1320];      /* 0x1320 */
636
    uint32_t        tod_progreg_save_area;     /* 0x1324 */
637
    uint32_t        cpu_timer_save_area[2];    /* 0x1328 */
638
    uint32_t        clock_comp_save_area[2];   /* 0x1330 */
639
    uint8_t         pad17[0x1340-0x1338];      /* 0x1338 */
640
    uint32_t        access_regs_save_area[16]; /* 0x1340 */
641
    uint64_t        cregs_save_area[16];       /* 0x1380 */
642

    
643
    /* align to the top of the prefix area */
644

    
645
    uint8_t         pad18[0x2000-0x1400];      /* 0x1400 */
646
} QEMU_PACKED LowCore;
647

    
648
/* STSI */
649
#define STSI_LEVEL_MASK         0x00000000f0000000ULL
650
#define STSI_LEVEL_CURRENT      0x0000000000000000ULL
651
#define STSI_LEVEL_1            0x0000000010000000ULL
652
#define STSI_LEVEL_2            0x0000000020000000ULL
653
#define STSI_LEVEL_3            0x0000000030000000ULL
654
#define STSI_R0_RESERVED_MASK   0x000000000fffff00ULL
655
#define STSI_R0_SEL1_MASK       0x00000000000000ffULL
656
#define STSI_R1_RESERVED_MASK   0x00000000ffff0000ULL
657
#define STSI_R1_SEL2_MASK       0x000000000000ffffULL
658

    
659
/* Basic Machine Configuration */
660
struct sysib_111 {
661
    uint32_t res1[8];
662
    uint8_t  manuf[16];
663
    uint8_t  type[4];
664
    uint8_t  res2[12];
665
    uint8_t  model[16];
666
    uint8_t  sequence[16];
667
    uint8_t  plant[4];
668
    uint8_t  res3[156];
669
};
670

    
671
/* Basic Machine CPU */
672
struct sysib_121 {
673
    uint32_t res1[80];
674
    uint8_t  sequence[16];
675
    uint8_t  plant[4];
676
    uint8_t  res2[2];
677
    uint16_t cpu_addr;
678
    uint8_t  res3[152];
679
};
680

    
681
/* Basic Machine CPUs */
682
struct sysib_122 {
683
    uint8_t res1[32];
684
    uint32_t capability;
685
    uint16_t total_cpus;
686
    uint16_t active_cpus;
687
    uint16_t standby_cpus;
688
    uint16_t reserved_cpus;
689
    uint16_t adjustments[2026];
690
};
691

    
692
/* LPAR CPU */
693
struct sysib_221 {
694
    uint32_t res1[80];
695
    uint8_t  sequence[16];
696
    uint8_t  plant[4];
697
    uint16_t cpu_id;
698
    uint16_t cpu_addr;
699
    uint8_t  res3[152];
700
};
701

    
702
/* LPAR CPUs */
703
struct sysib_222 {
704
    uint32_t res1[32];
705
    uint16_t lpar_num;
706
    uint8_t  res2;
707
    uint8_t  lcpuc;
708
    uint16_t total_cpus;
709
    uint16_t conf_cpus;
710
    uint16_t standby_cpus;
711
    uint16_t reserved_cpus;
712
    uint8_t  name[8];
713
    uint32_t caf;
714
    uint8_t  res3[16];
715
    uint16_t dedicated_cpus;
716
    uint16_t shared_cpus;
717
    uint8_t  res4[180];
718
};
719

    
720
/* VM CPUs */
721
struct sysib_322 {
722
    uint8_t  res1[31];
723
    uint8_t  count;
724
    struct {
725
        uint8_t  res2[4];
726
        uint16_t total_cpus;
727
        uint16_t conf_cpus;
728
        uint16_t standby_cpus;
729
        uint16_t reserved_cpus;
730
        uint8_t  name[8];
731
        uint32_t caf;
732
        uint8_t  cpi[16];
733
        uint8_t  res3[24];
734
    } vm[8];
735
    uint8_t res4[3552];
736
};
737

    
738
/* MMU defines */
739
#define _ASCE_ORIGIN            ~0xfffULL /* segment table origin             */
740
#define _ASCE_SUBSPACE          0x200     /* subspace group control           */
741
#define _ASCE_PRIVATE_SPACE     0x100     /* private space control            */
742
#define _ASCE_ALT_EVENT         0x80      /* storage alteration event control */
743
#define _ASCE_SPACE_SWITCH      0x40      /* space switch event               */
744
#define _ASCE_REAL_SPACE        0x20      /* real space control               */
745
#define _ASCE_TYPE_MASK         0x0c      /* asce table type mask             */
746
#define _ASCE_TYPE_REGION1      0x0c      /* region first table type          */
747
#define _ASCE_TYPE_REGION2      0x08      /* region second table type         */
748
#define _ASCE_TYPE_REGION3      0x04      /* region third table type          */
749
#define _ASCE_TYPE_SEGMENT      0x00      /* segment table type               */
750
#define _ASCE_TABLE_LENGTH      0x03      /* region table length              */
751

    
752
#define _REGION_ENTRY_ORIGIN    ~0xfffULL /* region/segment table origin      */
753
#define _REGION_ENTRY_INV       0x20      /* invalid region table entry       */
754
#define _REGION_ENTRY_TYPE_MASK 0x0c      /* region/segment table type mask   */
755
#define _REGION_ENTRY_TYPE_R1   0x0c      /* region first table type          */
756
#define _REGION_ENTRY_TYPE_R2   0x08      /* region second table type         */
757
#define _REGION_ENTRY_TYPE_R3   0x04      /* region third table type          */
758
#define _REGION_ENTRY_LENGTH    0x03      /* region third length              */
759

    
760
#define _SEGMENT_ENTRY_ORIGIN   ~0x7ffULL /* segment table origin             */
761
#define _SEGMENT_ENTRY_RO       0x200     /* page protection bit              */
762
#define _SEGMENT_ENTRY_INV      0x20      /* invalid segment table entry      */
763

    
764
#define _PAGE_RO        0x200            /* HW read-only bit  */
765
#define _PAGE_INVALID   0x400            /* HW invalid bit    */
766

    
767
#define SK_C                    (0x1 << 1)
768
#define SK_R                    (0x1 << 2)
769
#define SK_F                    (0x1 << 3)
770
#define SK_ACC_MASK             (0xf << 4)
771

    
772

    
773
/* EBCDIC handling */
774
static const uint8_t ebcdic2ascii[] = {
775
    0x00, 0x01, 0x02, 0x03, 0x07, 0x09, 0x07, 0x7F,
776
    0x07, 0x07, 0x07, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
777
    0x10, 0x11, 0x12, 0x13, 0x07, 0x0A, 0x08, 0x07,
778
    0x18, 0x19, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
779
    0x07, 0x07, 0x1C, 0x07, 0x07, 0x0A, 0x17, 0x1B,
780
    0x07, 0x07, 0x07, 0x07, 0x07, 0x05, 0x06, 0x07,
781
    0x07, 0x07, 0x16, 0x07, 0x07, 0x07, 0x07, 0x04,
782
    0x07, 0x07, 0x07, 0x07, 0x14, 0x15, 0x07, 0x1A,
783
    0x20, 0xFF, 0x83, 0x84, 0x85, 0xA0, 0x07, 0x86,
784
    0x87, 0xA4, 0x5B, 0x2E, 0x3C, 0x28, 0x2B, 0x21,
785
    0x26, 0x82, 0x88, 0x89, 0x8A, 0xA1, 0x8C, 0x07,
786
    0x8D, 0xE1, 0x5D, 0x24, 0x2A, 0x29, 0x3B, 0x5E,
787
    0x2D, 0x2F, 0x07, 0x8E, 0x07, 0x07, 0x07, 0x8F,
788
    0x80, 0xA5, 0x07, 0x2C, 0x25, 0x5F, 0x3E, 0x3F,
789
    0x07, 0x90, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07,
790
    0x70, 0x60, 0x3A, 0x23, 0x40, 0x27, 0x3D, 0x22,
791
    0x07, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
792
    0x68, 0x69, 0xAE, 0xAF, 0x07, 0x07, 0x07, 0xF1,
793
    0xF8, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,
794
    0x71, 0x72, 0xA6, 0xA7, 0x91, 0x07, 0x92, 0x07,
795
    0xE6, 0x7E, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,
796
    0x79, 0x7A, 0xAD, 0xAB, 0x07, 0x07, 0x07, 0x07,
797
    0x9B, 0x9C, 0x9D, 0xFA, 0x07, 0x07, 0x07, 0xAC,
798
    0xAB, 0x07, 0xAA, 0x7C, 0x07, 0x07, 0x07, 0x07,
799
    0x7B, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
800
    0x48, 0x49, 0x07, 0x93, 0x94, 0x95, 0xA2, 0x07,
801
    0x7D, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,
802
    0x51, 0x52, 0x07, 0x96, 0x81, 0x97, 0xA3, 0x98,
803
    0x5C, 0xF6, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,
804
    0x59, 0x5A, 0xFD, 0x07, 0x99, 0x07, 0x07, 0x07,
805
    0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
806
    0x38, 0x39, 0x07, 0x07, 0x9A, 0x07, 0x07, 0x07,
807
};
808

    
809
static const uint8_t ascii2ebcdic [] = {
810
    0x00, 0x01, 0x02, 0x03, 0x37, 0x2D, 0x2E, 0x2F,
811
    0x16, 0x05, 0x15, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
812
    0x10, 0x11, 0x12, 0x13, 0x3C, 0x3D, 0x32, 0x26,
813
    0x18, 0x19, 0x3F, 0x27, 0x22, 0x1D, 0x1E, 0x1F,
814
    0x40, 0x5A, 0x7F, 0x7B, 0x5B, 0x6C, 0x50, 0x7D,
815
    0x4D, 0x5D, 0x5C, 0x4E, 0x6B, 0x60, 0x4B, 0x61,
816
    0xF0, 0xF1, 0xF2, 0xF3, 0xF4, 0xF5, 0xF6, 0xF7,
817
    0xF8, 0xF9, 0x7A, 0x5E, 0x4C, 0x7E, 0x6E, 0x6F,
818
    0x7C, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7,
819
    0xC8, 0xC9, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6,
820
    0xD7, 0xD8, 0xD9, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6,
821
    0xE7, 0xE8, 0xE9, 0xBA, 0xE0, 0xBB, 0xB0, 0x6D,
822
    0x79, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
823
    0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
824
    0x97, 0x98, 0x99, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6,
825
    0xA7, 0xA8, 0xA9, 0xC0, 0x4F, 0xD0, 0xA1, 0x07,
826
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
827
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
828
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
829
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
830
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
831
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
832
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
833
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
834
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
835
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
836
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
837
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
838
    0x3F, 0x59, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
839
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
840
    0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F,
841
    0x90, 0x3F, 0x3F, 0x3F, 0x3F, 0xEA, 0x3F, 0xFF
842
};
843

    
844
static inline void ebcdic_put(uint8_t *p, const char *ascii, int len)
845
{
846
    int i;
847

    
848
    for (i = 0; i < len; i++) {
849
        p[i] = ascii2ebcdic[(int)ascii[i]];
850
    }
851
}
852

    
853
#define SIGP_SENSE             0x01
854
#define SIGP_EXTERNAL_CALL     0x02
855
#define SIGP_EMERGENCY         0x03
856
#define SIGP_START             0x04
857
#define SIGP_STOP              0x05
858
#define SIGP_RESTART           0x06
859
#define SIGP_STOP_STORE_STATUS 0x09
860
#define SIGP_INITIAL_CPU_RESET 0x0b
861
#define SIGP_CPU_RESET         0x0c
862
#define SIGP_SET_PREFIX        0x0d
863
#define SIGP_STORE_STATUS_ADDR 0x0e
864
#define SIGP_SET_ARCH          0x12
865

    
866
/* cpu status bits */
867
#define SIGP_STAT_EQUIPMENT_CHECK   0x80000000UL
868
#define SIGP_STAT_INCORRECT_STATE   0x00000200UL
869
#define SIGP_STAT_INVALID_PARAMETER 0x00000100UL
870
#define SIGP_STAT_EXT_CALL_PENDING  0x00000080UL
871
#define SIGP_STAT_STOPPED           0x00000040UL
872
#define SIGP_STAT_OPERATOR_INTERV   0x00000020UL
873
#define SIGP_STAT_CHECK_STOP        0x00000010UL
874
#define SIGP_STAT_INOPERATIVE       0x00000004UL
875
#define SIGP_STAT_INVALID_ORDER     0x00000002UL
876
#define SIGP_STAT_RECEIVER_CHECK    0x00000001UL
877

    
878
void load_psw(CPUS390XState *env, uint64_t mask, uint64_t addr);
879
int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc,
880
                  target_ulong *raddr, int *flags);
881
int sclp_service_call(uint32_t sccb, uint64_t code);
882
uint32_t calc_cc(CPUS390XState *env, uint32_t cc_op, uint64_t src, uint64_t dst,
883
                 uint64_t vr);
884

    
885
#define TARGET_HAS_ICE 1
886

    
887
/* The value of the TOD clock for 1.1.1970. */
888
#define TOD_UNIX_EPOCH 0x7d91048bca000000ULL
889

    
890
/* Converts ns to s390's clock format */
891
static inline uint64_t time2tod(uint64_t ns) {
892
    return (ns << 9) / 125;
893
}
894

    
895
static inline void cpu_inject_ext(CPUS390XState *env, uint32_t code, uint32_t param,
896
                                  uint64_t param64)
897
{
898
    if (env->ext_index == MAX_EXT_QUEUE - 1) {
899
        /* ugh - can't queue anymore. Let's drop. */
900
        return;
901
    }
902

    
903
    env->ext_index++;
904
    assert(env->ext_index < MAX_EXT_QUEUE);
905

    
906
    env->ext_queue[env->ext_index].code = code;
907
    env->ext_queue[env->ext_index].param = param;
908
    env->ext_queue[env->ext_index].param64 = param64;
909

    
910
    env->pending_int |= INTERRUPT_EXT;
911
    cpu_interrupt(env, CPU_INTERRUPT_HARD);
912
}
913

    
914
static inline bool cpu_has_work(CPUState *cpu)
915
{
916
    CPUS390XState *env = &S390_CPU(cpu)->env;
917

    
918
    return (env->interrupt_request & CPU_INTERRUPT_HARD) &&
919
        (env->psw.mask & PSW_MASK_EXT);
920
}
921

    
922
static inline void cpu_pc_from_tb(CPUS390XState *env, TranslationBlock* tb)
923
{
924
    env->psw.addr = tb->pc;
925
}
926

    
927
/* fpu_helper.c */
928
uint32_t set_cc_nz_f32(float32 v);
929
uint32_t set_cc_nz_f64(float64 v);
930
uint32_t set_cc_nz_f128(float128 v);
931

    
932
/* misc_helper.c */
933
void program_interrupt(CPUS390XState *env, uint32_t code, int ilen);
934
void QEMU_NORETURN runtime_exception(CPUS390XState *env, int excp,
935
                                     uintptr_t retaddr);
936

    
937
#endif