mirror of https://gitee.com/openkylin/qemu.git
1130 lines
37 KiB
C
1130 lines
37 KiB
C
/*
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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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* Contributions after 2012-10-29 are licensed under the terms of the
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* GNU GPL, version 2 or (at your option) any later version.
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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 ELF_MACHINE_UNAME "S390X"
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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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#define MAX_IO_QUEUE 16
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#define MAX_MCHK_QUEUE 16
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#define PSW_MCHK_MASK 0x0004000000000000
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#define PSW_IO_MASK 0x0200000000000000
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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 IOIntQueue {
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uint16_t id;
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uint16_t nr;
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uint32_t parm;
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uint32_t word;
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} IOIntQueue;
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typedef struct MchkQueue {
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uint16_t type;
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} MchkQueue;
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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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IOIntQueue io_queue[MAX_IO_QUEUE][8];
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MchkQueue mchk_queue[MAX_MCHK_QUEUE];
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int pending_int;
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int ext_index;
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int io_index[8];
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int mchk_index;
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uint64_t ckc;
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uint64_t cputm;
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uint32_t todpr;
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uint64_t pfault_token;
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uint64_t pfault_compare;
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uint64_t pfault_select;
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uint64_t gbea;
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uint64_t pp;
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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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#include <sysemu/kvm.h>
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/* distinguish between 24 bit and 31 bit addressing */
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#define HIGH_ORDER_BIT 0x80000000
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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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#undef PSW_MASK_32
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#undef PSW_MASK_ESA_ADDR
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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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#define PSW_MASK_ESA_ADDR 0x000000007fffffffULL
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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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/* Control register 0 bits */
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#define CR0_EDAT 0x0000000000800000ULL
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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)
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{
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switch (opc >> 6) {
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case 0:
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return 2;
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case 1:
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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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/* 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
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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 s390_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
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int mmu_idx);
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#include "ioinst.h"
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#ifndef CONFIG_USER_ONLY
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void *s390_cpu_physical_memory_map(CPUS390XState *env, hwaddr addr, hwaddr *len,
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int is_write);
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void s390_cpu_physical_memory_unmap(CPUS390XState *env, void *addr, hwaddr len,
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int is_write);
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static inline hwaddr decode_basedisp_s(CPUS390XState *env, uint32_t ipb)
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{
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hwaddr addr = 0;
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uint8_t reg;
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reg = ipb >> 28;
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if (reg > 0) {
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addr = env->regs[reg];
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}
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addr += (ipb >> 16) & 0xfff;
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return addr;
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}
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/* Base/displacement are at the same locations. */
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#define decode_basedisp_rs decode_basedisp_s
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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);
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void s390_virtio_irq(int config_change, uint64_t token);
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#ifdef CONFIG_KVM
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void kvm_s390_reset_vcpu(S390CPU *cpu);
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void kvm_s390_virtio_irq(int config_change, uint64_t token);
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void kvm_s390_service_interrupt(uint32_t parm);
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void kvm_s390_vcpu_interrupt(S390CPU *cpu, struct kvm_s390_irq *irq);
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void kvm_s390_floating_interrupt(struct kvm_s390_irq *irq);
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#else
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static inline void kvm_s390_reset_vcpu(S390CPU *cpu)
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{
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}
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static inline void kvm_s390_virtio_irq(int config_change, uint64_t token)
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{
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}
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static inline void kvm_s390_service_interrupt(uint32_t parm)
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{
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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(S390CPU *cpu);
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unsigned s390_del_running_cpu(S390CPU *cpu);
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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
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static inline void s390_add_running_cpu(S390CPU *cpu)
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{
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}
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static inline unsigned s390_del_running_cpu(S390CPU *cpu)
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{
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return 0;
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}
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#endif
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void cpu_lock(void);
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void cpu_unlock(void);
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typedef struct SubchDev SubchDev;
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#ifndef CONFIG_USER_ONLY
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extern void io_subsystem_reset(void);
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SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid,
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uint16_t schid);
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bool css_subch_visible(SubchDev *sch);
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void css_conditional_io_interrupt(SubchDev *sch);
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int css_do_stsch(SubchDev *sch, SCHIB *schib);
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bool css_schid_final(int m, uint8_t cssid, uint8_t ssid, uint16_t schid);
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int css_do_msch(SubchDev *sch, SCHIB *schib);
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int css_do_xsch(SubchDev *sch);
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int css_do_csch(SubchDev *sch);
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int css_do_hsch(SubchDev *sch);
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int css_do_ssch(SubchDev *sch, ORB *orb);
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int css_do_tsch(SubchDev *sch, IRB *irb);
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int css_do_stcrw(CRW *crw);
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int css_do_tpi(IOIntCode *int_code, int lowcore);
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int css_collect_chp_desc(int m, uint8_t cssid, uint8_t f_chpid, uint8_t l_chpid,
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int rfmt, void *buf);
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void css_do_schm(uint8_t mbk, int update, int dct, uint64_t mbo);
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int css_enable_mcsse(void);
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int css_enable_mss(void);
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int css_do_rsch(SubchDev *sch);
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int css_do_rchp(uint8_t cssid, uint8_t chpid);
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bool css_present(uint8_t cssid);
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#else
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static inline SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid,
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uint16_t schid)
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{
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return NULL;
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}
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static inline bool css_subch_visible(SubchDev *sch)
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{
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return false;
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}
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static inline void css_conditional_io_interrupt(SubchDev *sch)
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{
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}
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static inline int css_do_stsch(SubchDev *sch, SCHIB *schib)
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{
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return -ENODEV;
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}
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static inline bool css_schid_final(uint8_t cssid, uint8_t ssid, uint16_t schid)
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{
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return true;
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}
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static inline int css_do_msch(SubchDev *sch, SCHIB *schib)
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{
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return -ENODEV;
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}
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static inline int css_do_xsch(SubchDev *sch)
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{
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return -ENODEV;
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}
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static inline int css_do_csch(SubchDev *sch)
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{
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return -ENODEV;
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}
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static inline int css_do_hsch(SubchDev *sch)
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{
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return -ENODEV;
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}
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static inline int css_do_ssch(SubchDev *sch, ORB *orb)
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{
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return -ENODEV;
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}
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static inline int css_do_tsch(SubchDev *sch, IRB *irb)
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{
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return -ENODEV;
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}
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static inline int css_do_stcrw(CRW *crw)
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{
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return 1;
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}
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static inline int css_do_tpi(IOIntCode *int_code, int lowcore)
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{
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return 0;
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}
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static inline int css_collect_chp_desc(int m, uint8_t cssid, uint8_t f_chpid,
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int rfmt, uint8_t l_chpid, void *buf)
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{
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return 0;
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}
|
|
static inline void css_do_schm(uint8_t mbk, int update, int dct, uint64_t mbo)
|
|
{
|
|
}
|
|
static inline int css_enable_mss(void)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline int css_enable_mcsse(void)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
static inline int css_do_rsch(SubchDev *sch)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
static inline int css_do_rchp(uint8_t cssid, uint8_t chpid)
|
|
{
|
|
return -ENODEV;
|
|
}
|
|
static inline bool css_present(uint8_t cssid)
|
|
{
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
#define cpu_init(model) (&cpu_s390x_init(model)->env)
|
|
#define cpu_exec cpu_s390x_exec
|
|
#define cpu_gen_code cpu_s390x_gen_code
|
|
#define cpu_signal_handler cpu_s390x_signal_handler
|
|
|
|
void s390_cpu_list(FILE *f, fprintf_function cpu_fprintf);
|
|
#define cpu_list s390_cpu_list
|
|
|
|
#include "exec/exec-all.h"
|
|
|
|
#define EXCP_EXT 1 /* external interrupt */
|
|
#define EXCP_SVC 2 /* supervisor call (syscall) */
|
|
#define EXCP_PGM 3 /* program interruption */
|
|
#define EXCP_IO 7 /* I/O interrupt */
|
|
#define EXCP_MCHK 8 /* machine check */
|
|
|
|
#define INTERRUPT_EXT (1 << 0)
|
|
#define INTERRUPT_TOD (1 << 1)
|
|
#define INTERRUPT_CPUTIMER (1 << 2)
|
|
#define INTERRUPT_IO (1 << 3)
|
|
#define INTERRUPT_MCHK (1 << 4)
|
|
|
|
/* 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
|
|
/* Access Registers. */
|
|
#define S390_A0_REGNUM 18
|
|
#define S390_A1_REGNUM 19
|
|
#define S390_A2_REGNUM 20
|
|
#define S390_A3_REGNUM 21
|
|
#define S390_A4_REGNUM 22
|
|
#define S390_A5_REGNUM 23
|
|
#define S390_A6_REGNUM 24
|
|
#define S390_A7_REGNUM 25
|
|
#define S390_A8_REGNUM 26
|
|
#define S390_A9_REGNUM 27
|
|
#define S390_A10_REGNUM 28
|
|
#define S390_A11_REGNUM 29
|
|
#define S390_A12_REGNUM 30
|
|
#define S390_A13_REGNUM 31
|
|
#define S390_A14_REGNUM 32
|
|
#define S390_A15_REGNUM 33
|
|
/* Floating Point Control Word. */
|
|
#define S390_FPC_REGNUM 34
|
|
/* Floating Point Registers. */
|
|
#define S390_F0_REGNUM 35
|
|
#define S390_F1_REGNUM 36
|
|
#define S390_F2_REGNUM 37
|
|
#define S390_F3_REGNUM 38
|
|
#define S390_F4_REGNUM 39
|
|
#define S390_F5_REGNUM 40
|
|
#define S390_F6_REGNUM 41
|
|
#define S390_F7_REGNUM 42
|
|
#define S390_F8_REGNUM 43
|
|
#define S390_F9_REGNUM 44
|
|
#define S390_F10_REGNUM 45
|
|
#define S390_F11_REGNUM 46
|
|
#define S390_F12_REGNUM 47
|
|
#define S390_F13_REGNUM 48
|
|
#define S390_F14_REGNUM 49
|
|
#define S390_F15_REGNUM 50
|
|
/* Total. */
|
|
#define S390_NUM_REGS 51
|
|
|
|
/* CC optimization */
|
|
|
|
enum cc_op {
|
|
CC_OP_CONST0 = 0, /* CC is 0 */
|
|
CC_OP_CONST1, /* CC is 1 */
|
|
CC_OP_CONST2, /* CC is 2 */
|
|
CC_OP_CONST3, /* CC is 3 */
|
|
|
|
CC_OP_DYNAMIC, /* CC calculation defined by env->cc_op */
|
|
CC_OP_STATIC, /* CC value is env->cc_op */
|
|
|
|
CC_OP_NZ, /* env->cc_dst != 0 */
|
|
CC_OP_LTGT_32, /* signed less/greater than (32bit) */
|
|
CC_OP_LTGT_64, /* signed less/greater than (64bit) */
|
|
CC_OP_LTUGTU_32, /* unsigned less/greater than (32bit) */
|
|
CC_OP_LTUGTU_64, /* unsigned less/greater than (64bit) */
|
|
CC_OP_LTGT0_32, /* signed less/greater than 0 (32bit) */
|
|
CC_OP_LTGT0_64, /* signed less/greater than 0 (64bit) */
|
|
|
|
CC_OP_ADD_64, /* overflow on add (64bit) */
|
|
CC_OP_ADDU_64, /* overflow on unsigned add (64bit) */
|
|
CC_OP_ADDC_64, /* overflow on unsigned add-carry (64bit) */
|
|
CC_OP_SUB_64, /* overflow on subtraction (64bit) */
|
|
CC_OP_SUBU_64, /* overflow on unsigned subtraction (64bit) */
|
|
CC_OP_SUBB_64, /* overflow on unsigned sub-borrow (64bit) */
|
|
CC_OP_ABS_64, /* sign eval on abs (64bit) */
|
|
CC_OP_NABS_64, /* sign eval on nabs (64bit) */
|
|
|
|
CC_OP_ADD_32, /* overflow on add (32bit) */
|
|
CC_OP_ADDU_32, /* overflow on unsigned add (32bit) */
|
|
CC_OP_ADDC_32, /* overflow on unsigned add-carry (32bit) */
|
|
CC_OP_SUB_32, /* overflow on subtraction (32bit) */
|
|
CC_OP_SUBU_32, /* overflow on unsigned subtraction (32bit) */
|
|
CC_OP_SUBB_32, /* overflow on unsigned sub-borrow (32bit) */
|
|
CC_OP_ABS_32, /* sign eval on abs (64bit) */
|
|
CC_OP_NABS_32, /* sign eval on nabs (64bit) */
|
|
|
|
CC_OP_COMP_32, /* complement */
|
|
CC_OP_COMP_64, /* complement */
|
|
|
|
CC_OP_TM_32, /* test under mask (32bit) */
|
|
CC_OP_TM_64, /* test under mask (64bit) */
|
|
|
|
CC_OP_NZ_F32, /* FP dst != 0 (32bit) */
|
|
CC_OP_NZ_F64, /* FP dst != 0 (64bit) */
|
|
CC_OP_NZ_F128, /* FP dst != 0 (128bit) */
|
|
|
|
CC_OP_ICM, /* insert characters under mask */
|
|
CC_OP_SLA_32, /* Calculate shift left signed (32bit) */
|
|
CC_OP_SLA_64, /* Calculate shift left signed (64bit) */
|
|
CC_OP_FLOGR, /* find leftmost one */
|
|
CC_OP_MAX
|
|
};
|
|
|
|
static const char *cc_names[] = {
|
|
[CC_OP_CONST0] = "CC_OP_CONST0",
|
|
[CC_OP_CONST1] = "CC_OP_CONST1",
|
|
[CC_OP_CONST2] = "CC_OP_CONST2",
|
|
[CC_OP_CONST3] = "CC_OP_CONST3",
|
|
[CC_OP_DYNAMIC] = "CC_OP_DYNAMIC",
|
|
[CC_OP_STATIC] = "CC_OP_STATIC",
|
|
[CC_OP_NZ] = "CC_OP_NZ",
|
|
[CC_OP_LTGT_32] = "CC_OP_LTGT_32",
|
|
[CC_OP_LTGT_64] = "CC_OP_LTGT_64",
|
|
[CC_OP_LTUGTU_32] = "CC_OP_LTUGTU_32",
|
|
[CC_OP_LTUGTU_64] = "CC_OP_LTUGTU_64",
|
|
[CC_OP_LTGT0_32] = "CC_OP_LTGT0_32",
|
|
[CC_OP_LTGT0_64] = "CC_OP_LTGT0_64",
|
|
[CC_OP_ADD_64] = "CC_OP_ADD_64",
|
|
[CC_OP_ADDU_64] = "CC_OP_ADDU_64",
|
|
[CC_OP_ADDC_64] = "CC_OP_ADDC_64",
|
|
[CC_OP_SUB_64] = "CC_OP_SUB_64",
|
|
[CC_OP_SUBU_64] = "CC_OP_SUBU_64",
|
|
[CC_OP_SUBB_64] = "CC_OP_SUBB_64",
|
|
[CC_OP_ABS_64] = "CC_OP_ABS_64",
|
|
[CC_OP_NABS_64] = "CC_OP_NABS_64",
|
|
[CC_OP_ADD_32] = "CC_OP_ADD_32",
|
|
[CC_OP_ADDU_32] = "CC_OP_ADDU_32",
|
|
[CC_OP_ADDC_32] = "CC_OP_ADDC_32",
|
|
[CC_OP_SUB_32] = "CC_OP_SUB_32",
|
|
[CC_OP_SUBU_32] = "CC_OP_SUBU_32",
|
|
[CC_OP_SUBB_32] = "CC_OP_SUBB_32",
|
|
[CC_OP_ABS_32] = "CC_OP_ABS_32",
|
|
[CC_OP_NABS_32] = "CC_OP_NABS_32",
|
|
[CC_OP_COMP_32] = "CC_OP_COMP_32",
|
|
[CC_OP_COMP_64] = "CC_OP_COMP_64",
|
|
[CC_OP_TM_32] = "CC_OP_TM_32",
|
|
[CC_OP_TM_64] = "CC_OP_TM_64",
|
|
[CC_OP_NZ_F32] = "CC_OP_NZ_F32",
|
|
[CC_OP_NZ_F64] = "CC_OP_NZ_F64",
|
|
[CC_OP_NZ_F128] = "CC_OP_NZ_F128",
|
|
[CC_OP_ICM] = "CC_OP_ICM",
|
|
[CC_OP_SLA_32] = "CC_OP_SLA_32",
|
|
[CC_OP_SLA_64] = "CC_OP_SLA_64",
|
|
[CC_OP_FLOGR] = "CC_OP_FLOGR",
|
|
};
|
|
|
|
static inline const char *cc_name(int cc_op)
|
|
{
|
|
return cc_names[cc_op];
|
|
}
|
|
|
|
static inline void setcc(S390CPU *cpu, uint64_t cc)
|
|
{
|
|
CPUS390XState *env = &cpu->env;
|
|
|
|
env->psw.mask &= ~(3ull << 44);
|
|
env->psw.mask |= (cc & 3) << 44;
|
|
}
|
|
|
|
typedef struct LowCore
|
|
{
|
|
/* prefix area: defined by architecture */
|
|
uint32_t ccw1[2]; /* 0x000 */
|
|
uint32_t ccw2[4]; /* 0x008 */
|
|
uint8_t pad1[0x80-0x18]; /* 0x018 */
|
|
uint32_t ext_params; /* 0x080 */
|
|
uint16_t cpu_addr; /* 0x084 */
|
|
uint16_t ext_int_code; /* 0x086 */
|
|
uint16_t svc_ilen; /* 0x088 */
|
|
uint16_t svc_code; /* 0x08a */
|
|
uint16_t pgm_ilen; /* 0x08c */
|
|
uint16_t pgm_code; /* 0x08e */
|
|
uint32_t data_exc_code; /* 0x090 */
|
|
uint16_t mon_class_num; /* 0x094 */
|
|
uint16_t per_perc_atmid; /* 0x096 */
|
|
uint64_t per_address; /* 0x098 */
|
|
uint8_t exc_access_id; /* 0x0a0 */
|
|
uint8_t per_access_id; /* 0x0a1 */
|
|
uint8_t op_access_id; /* 0x0a2 */
|
|
uint8_t ar_access_id; /* 0x0a3 */
|
|
uint8_t pad2[0xA8-0xA4]; /* 0x0a4 */
|
|
uint64_t trans_exc_code; /* 0x0a8 */
|
|
uint64_t monitor_code; /* 0x0b0 */
|
|
uint16_t subchannel_id; /* 0x0b8 */
|
|
uint16_t subchannel_nr; /* 0x0ba */
|
|
uint32_t io_int_parm; /* 0x0bc */
|
|
uint32_t io_int_word; /* 0x0c0 */
|
|
uint8_t pad3[0xc8-0xc4]; /* 0x0c4 */
|
|
uint32_t stfl_fac_list; /* 0x0c8 */
|
|
uint8_t pad4[0xe8-0xcc]; /* 0x0cc */
|
|
uint32_t mcck_interruption_code[2]; /* 0x0e8 */
|
|
uint8_t pad5[0xf4-0xf0]; /* 0x0f0 */
|
|
uint32_t external_damage_code; /* 0x0f4 */
|
|
uint64_t failing_storage_address; /* 0x0f8 */
|
|
uint8_t pad6[0x120-0x100]; /* 0x100 */
|
|
PSW restart_old_psw; /* 0x120 */
|
|
PSW external_old_psw; /* 0x130 */
|
|
PSW svc_old_psw; /* 0x140 */
|
|
PSW program_old_psw; /* 0x150 */
|
|
PSW mcck_old_psw; /* 0x160 */
|
|
PSW io_old_psw; /* 0x170 */
|
|
uint8_t pad7[0x1a0-0x180]; /* 0x180 */
|
|
PSW restart_psw; /* 0x1a0 */
|
|
PSW external_new_psw; /* 0x1b0 */
|
|
PSW svc_new_psw; /* 0x1c0 */
|
|
PSW program_new_psw; /* 0x1d0 */
|
|
PSW mcck_new_psw; /* 0x1e0 */
|
|
PSW io_new_psw; /* 0x1f0 */
|
|
PSW return_psw; /* 0x200 */
|
|
uint8_t irb[64]; /* 0x210 */
|
|
uint64_t sync_enter_timer; /* 0x250 */
|
|
uint64_t async_enter_timer; /* 0x258 */
|
|
uint64_t exit_timer; /* 0x260 */
|
|
uint64_t last_update_timer; /* 0x268 */
|
|
uint64_t user_timer; /* 0x270 */
|
|
uint64_t system_timer; /* 0x278 */
|
|
uint64_t last_update_clock; /* 0x280 */
|
|
uint64_t steal_clock; /* 0x288 */
|
|
PSW return_mcck_psw; /* 0x290 */
|
|
uint8_t pad8[0xc00-0x2a0]; /* 0x2a0 */
|
|
/* System info area */
|
|
uint64_t save_area[16]; /* 0xc00 */
|
|
uint8_t pad9[0xd40-0xc80]; /* 0xc80 */
|
|
uint64_t kernel_stack; /* 0xd40 */
|
|
uint64_t thread_info; /* 0xd48 */
|
|
uint64_t async_stack; /* 0xd50 */
|
|
uint64_t kernel_asce; /* 0xd58 */
|
|
uint64_t user_asce; /* 0xd60 */
|
|
uint64_t panic_stack; /* 0xd68 */
|
|
uint64_t user_exec_asce; /* 0xd70 */
|
|
uint8_t pad10[0xdc0-0xd78]; /* 0xd78 */
|
|
|
|
/* SMP info area: defined by DJB */
|
|
uint64_t clock_comparator; /* 0xdc0 */
|
|
uint64_t ext_call_fast; /* 0xdc8 */
|
|
uint64_t percpu_offset; /* 0xdd0 */
|
|
uint64_t current_task; /* 0xdd8 */
|
|
uint32_t softirq_pending; /* 0xde0 */
|
|
uint32_t pad_0x0de4; /* 0xde4 */
|
|
uint64_t int_clock; /* 0xde8 */
|
|
uint8_t pad12[0xe00-0xdf0]; /* 0xdf0 */
|
|
|
|
/* 0xe00 is used as indicator for dump tools */
|
|
/* whether the kernel died with panic() or not */
|
|
uint32_t panic_magic; /* 0xe00 */
|
|
|
|
uint8_t pad13[0x11b8-0xe04]; /* 0xe04 */
|
|
|
|
/* 64 bit extparam used for pfault, diag 250 etc */
|
|
uint64_t ext_params2; /* 0x11B8 */
|
|
|
|
uint8_t pad14[0x1200-0x11C0]; /* 0x11C0 */
|
|
|
|
/* System info area */
|
|
|
|
uint64_t floating_pt_save_area[16]; /* 0x1200 */
|
|
uint64_t gpregs_save_area[16]; /* 0x1280 */
|
|
uint32_t st_status_fixed_logout[4]; /* 0x1300 */
|
|
uint8_t pad15[0x1318-0x1310]; /* 0x1310 */
|
|
uint32_t prefixreg_save_area; /* 0x1318 */
|
|
uint32_t fpt_creg_save_area; /* 0x131c */
|
|
uint8_t pad16[0x1324-0x1320]; /* 0x1320 */
|
|
uint32_t tod_progreg_save_area; /* 0x1324 */
|
|
uint32_t cpu_timer_save_area[2]; /* 0x1328 */
|
|
uint32_t clock_comp_save_area[2]; /* 0x1330 */
|
|
uint8_t pad17[0x1340-0x1338]; /* 0x1338 */
|
|
uint32_t access_regs_save_area[16]; /* 0x1340 */
|
|
uint64_t cregs_save_area[16]; /* 0x1380 */
|
|
|
|
/* align to the top of the prefix area */
|
|
|
|
uint8_t pad18[0x2000-0x1400]; /* 0x1400 */
|
|
} QEMU_PACKED LowCore;
|
|
|
|
/* STSI */
|
|
#define STSI_LEVEL_MASK 0x00000000f0000000ULL
|
|
#define STSI_LEVEL_CURRENT 0x0000000000000000ULL
|
|
#define STSI_LEVEL_1 0x0000000010000000ULL
|
|
#define STSI_LEVEL_2 0x0000000020000000ULL
|
|
#define STSI_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 */
|
|
struct sysib_111 {
|
|
uint32_t res1[8];
|
|
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[156];
|
|
};
|
|
|
|
/* Basic Machine CPU */
|
|
struct sysib_121 {
|
|
uint32_t res1[80];
|
|
uint8_t sequence[16];
|
|
uint8_t plant[4];
|
|
uint8_t res2[2];
|
|
uint16_t cpu_addr;
|
|
uint8_t res3[152];
|
|
};
|
|
|
|
/* Basic Machine CPUs */
|
|
struct sysib_122 {
|
|
uint8_t res1[32];
|
|
uint32_t capability;
|
|
uint16_t total_cpus;
|
|
uint16_t active_cpus;
|
|
uint16_t standby_cpus;
|
|
uint16_t reserved_cpus;
|
|
uint16_t adjustments[2026];
|
|
};
|
|
|
|
/* LPAR CPU */
|
|
struct sysib_221 {
|
|
uint32_t res1[80];
|
|
uint8_t sequence[16];
|
|
uint8_t plant[4];
|
|
uint16_t cpu_id;
|
|
uint16_t cpu_addr;
|
|
uint8_t res3[152];
|
|
};
|
|
|
|
/* LPAR CPUs */
|
|
struct sysib_222 {
|
|
uint32_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[180];
|
|
};
|
|
|
|
/* VM CPUs */
|
|
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 res3[24];
|
|
} vm[8];
|
|
uint8_t res4[3552];
|
|
};
|
|
|
|
/* 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_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 _PAGE_RO 0x200 /* HW read-only bit */
|
|
#define _PAGE_INVALID 0x400 /* HW invalid bit */
|
|
|
|
#define SK_C (0x1 << 1)
|
|
#define SK_R (0x1 << 2)
|
|
#define SK_F (0x1 << 3)
|
|
#define SK_ACC_MASK (0xf << 4)
|
|
|
|
#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
|
|
|
|
/* cpu status bits */
|
|
#define SIGP_STAT_EQUIPMENT_CHECK 0x80000000UL
|
|
#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
|
|
|
|
void load_psw(CPUS390XState *env, uint64_t mask, uint64_t addr);
|
|
int mmu_translate(CPUS390XState *env, target_ulong vaddr, int rw, uint64_t asc,
|
|
target_ulong *raddr, int *flags);
|
|
int sclp_service_call(CPUS390XState *env, uint64_t sccb, uint32_t code);
|
|
uint32_t calc_cc(CPUS390XState *env, uint32_t cc_op, uint64_t src, uint64_t dst,
|
|
uint64_t vr);
|
|
|
|
#define TARGET_HAS_ICE 1
|
|
|
|
/* The value of the TOD clock for 1.1.1970. */
|
|
#define TOD_UNIX_EPOCH 0x7d91048bca000000ULL
|
|
|
|
/* Converts ns to s390's clock format */
|
|
static inline uint64_t time2tod(uint64_t ns) {
|
|
return (ns << 9) / 125;
|
|
}
|
|
|
|
static inline void cpu_inject_ext(S390CPU *cpu, uint32_t code, uint32_t param,
|
|
uint64_t param64)
|
|
{
|
|
CPUS390XState *env = &cpu->env;
|
|
|
|
if (env->ext_index == MAX_EXT_QUEUE - 1) {
|
|
/* ugh - can't queue anymore. Let's drop. */
|
|
return;
|
|
}
|
|
|
|
env->ext_index++;
|
|
assert(env->ext_index < MAX_EXT_QUEUE);
|
|
|
|
env->ext_queue[env->ext_index].code = code;
|
|
env->ext_queue[env->ext_index].param = param;
|
|
env->ext_queue[env->ext_index].param64 = param64;
|
|
|
|
env->pending_int |= INTERRUPT_EXT;
|
|
cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD);
|
|
}
|
|
|
|
static inline void cpu_inject_io(S390CPU *cpu, uint16_t subchannel_id,
|
|
uint16_t subchannel_number,
|
|
uint32_t io_int_parm, uint32_t io_int_word)
|
|
{
|
|
CPUS390XState *env = &cpu->env;
|
|
int isc = IO_INT_WORD_ISC(io_int_word);
|
|
|
|
if (env->io_index[isc] == MAX_IO_QUEUE - 1) {
|
|
/* ugh - can't queue anymore. Let's drop. */
|
|
return;
|
|
}
|
|
|
|
env->io_index[isc]++;
|
|
assert(env->io_index[isc] < MAX_IO_QUEUE);
|
|
|
|
env->io_queue[env->io_index[isc]][isc].id = subchannel_id;
|
|
env->io_queue[env->io_index[isc]][isc].nr = subchannel_number;
|
|
env->io_queue[env->io_index[isc]][isc].parm = io_int_parm;
|
|
env->io_queue[env->io_index[isc]][isc].word = io_int_word;
|
|
|
|
env->pending_int |= INTERRUPT_IO;
|
|
cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD);
|
|
}
|
|
|
|
static inline void cpu_inject_crw_mchk(S390CPU *cpu)
|
|
{
|
|
CPUS390XState *env = &cpu->env;
|
|
|
|
if (env->mchk_index == MAX_MCHK_QUEUE - 1) {
|
|
/* ugh - can't queue anymore. Let's drop. */
|
|
return;
|
|
}
|
|
|
|
env->mchk_index++;
|
|
assert(env->mchk_index < MAX_MCHK_QUEUE);
|
|
|
|
env->mchk_queue[env->mchk_index].type = 1;
|
|
|
|
env->pending_int |= INTERRUPT_MCHK;
|
|
cpu_interrupt(CPU(cpu), CPU_INTERRUPT_HARD);
|
|
}
|
|
|
|
/* fpu_helper.c */
|
|
uint32_t set_cc_nz_f32(float32 v);
|
|
uint32_t set_cc_nz_f64(float64 v);
|
|
uint32_t set_cc_nz_f128(float128 v);
|
|
|
|
/* misc_helper.c */
|
|
#ifndef CONFIG_USER_ONLY
|
|
void handle_diag_308(CPUS390XState *env, uint64_t r1, uint64_t r3);
|
|
#endif
|
|
void program_interrupt(CPUS390XState *env, uint32_t code, int ilen);
|
|
void QEMU_NORETURN runtime_exception(CPUS390XState *env, int excp,
|
|
uintptr_t retaddr);
|
|
|
|
#ifdef CONFIG_KVM
|
|
void kvm_s390_io_interrupt(uint16_t subchannel_id,
|
|
uint16_t subchannel_nr, uint32_t io_int_parm,
|
|
uint32_t io_int_word);
|
|
void kvm_s390_crw_mchk(void);
|
|
void kvm_s390_enable_css_support(S390CPU *cpu);
|
|
int kvm_s390_assign_subch_ioeventfd(EventNotifier *notifier, uint32_t sch,
|
|
int vq, bool assign);
|
|
int kvm_s390_cpu_restart(S390CPU *cpu);
|
|
void kvm_s390_clear_cmma_callback(void *opaque);
|
|
#else
|
|
static inline void kvm_s390_io_interrupt(uint16_t subchannel_id,
|
|
uint16_t subchannel_nr,
|
|
uint32_t io_int_parm,
|
|
uint32_t io_int_word)
|
|
{
|
|
}
|
|
static inline void kvm_s390_crw_mchk(void)
|
|
{
|
|
}
|
|
static inline void kvm_s390_enable_css_support(S390CPU *cpu)
|
|
{
|
|
}
|
|
static inline int kvm_s390_assign_subch_ioeventfd(EventNotifier *notifier,
|
|
uint32_t sch, int vq,
|
|
bool assign)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
static inline int kvm_s390_cpu_restart(S390CPU *cpu)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
static inline void kvm_s390_clear_cmma_callback(void *opaque)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
static inline void cmma_reset(S390CPU *cpu)
|
|
{
|
|
if (kvm_enabled()) {
|
|
CPUState *cs = CPU(cpu);
|
|
kvm_s390_clear_cmma_callback(cs->kvm_state);
|
|
}
|
|
}
|
|
|
|
static inline int s390_cpu_restart(S390CPU *cpu)
|
|
{
|
|
if (kvm_enabled()) {
|
|
return kvm_s390_cpu_restart(cpu);
|
|
}
|
|
return -ENOSYS;
|
|
}
|
|
|
|
void s390_io_interrupt(uint16_t subchannel_id, uint16_t subchannel_nr,
|
|
uint32_t io_int_parm, uint32_t io_int_word);
|
|
void s390_crw_mchk(void);
|
|
|
|
static inline int s390_assign_subch_ioeventfd(EventNotifier *notifier,
|
|
uint32_t sch_id, int vq,
|
|
bool assign)
|
|
{
|
|
if (kvm_enabled()) {
|
|
return kvm_s390_assign_subch_ioeventfd(notifier, sch_id, vq, assign);
|
|
} else {
|
|
return -ENOSYS;
|
|
}
|
|
}
|
|
|
|
#endif
|