| /* |
| * S/390 virtual CPU header |
| * |
| * Copyright (c) 2009 Ulrich Hecht |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * Contributions after 2012-10-29 are licensed under the terms of the |
| * GNU GPL, version 2 or (at your option) any later version. |
| * |
| * You should have received a copy of the GNU (Lesser) General Public |
| * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| */ |
| #ifndef CPU_S390X_H |
| #define CPU_S390X_H |
| |
| #include "config.h" |
| #include "qemu-common.h" |
| |
| #define TARGET_LONG_BITS 64 |
| |
| #define ELF_MACHINE EM_S390 |
| #define ELF_MACHINE_UNAME "S390X" |
| |
| #define CPUArchState struct CPUS390XState |
| |
| #include "exec/cpu-defs.h" |
| #define TARGET_PAGE_BITS 12 |
| |
| #define TARGET_PHYS_ADDR_SPACE_BITS 64 |
| #define TARGET_VIRT_ADDR_SPACE_BITS 64 |
| |
| #include "exec/cpu-all.h" |
| |
| #include "fpu/softfloat.h" |
| |
| #define NB_MMU_MODES 3 |
| |
| #define MMU_MODE0_SUFFIX _primary |
| #define MMU_MODE1_SUFFIX _secondary |
| #define MMU_MODE2_SUFFIX _home |
| |
| #define MMU_USER_IDX 1 |
| |
| #define MAX_EXT_QUEUE 16 |
| #define MAX_IO_QUEUE 16 |
| #define MAX_MCHK_QUEUE 16 |
| |
| #define PSW_MCHK_MASK 0x0004000000000000 |
| #define PSW_IO_MASK 0x0200000000000000 |
| |
| typedef struct PSW { |
| uint64_t mask; |
| uint64_t addr; |
| } PSW; |
| |
| typedef struct ExtQueue { |
| uint32_t code; |
| uint32_t param; |
| uint32_t param64; |
| } ExtQueue; |
| |
| typedef struct IOIntQueue { |
| uint16_t id; |
| uint16_t nr; |
| uint32_t parm; |
| uint32_t word; |
| } IOIntQueue; |
| |
| typedef struct MchkQueue { |
| uint16_t type; |
| } MchkQueue; |
| |
| typedef struct CPUS390XState { |
| uint64_t regs[16]; /* GP registers */ |
| CPU_DoubleU fregs[16]; /* FP registers */ |
| uint32_t aregs[16]; /* access registers */ |
| |
| uint32_t fpc; /* floating-point control register */ |
| uint32_t cc_op; |
| |
| float_status fpu_status; /* passed to softfloat lib */ |
| |
| /* The low part of a 128-bit return, or remainder of a divide. */ |
| uint64_t retxl; |
| |
| PSW psw; |
| |
| uint64_t cc_src; |
| uint64_t cc_dst; |
| uint64_t cc_vr; |
| |
| uint64_t __excp_addr; |
| uint64_t psa; |
| |
| uint32_t int_pgm_code; |
| uint32_t int_pgm_ilen; |
| |
| uint32_t int_svc_code; |
| uint32_t int_svc_ilen; |
| |
| uint64_t cregs[16]; /* control registers */ |
| |
| ExtQueue ext_queue[MAX_EXT_QUEUE]; |
| IOIntQueue io_queue[MAX_IO_QUEUE][8]; |
| MchkQueue mchk_queue[MAX_MCHK_QUEUE]; |
| |
| int pending_int; |
| int ext_index; |
| int io_index[8]; |
| int mchk_index; |
| |
| uint64_t ckc; |
| uint64_t cputm; |
| uint32_t todpr; |
| |
| uint64_t pfault_token; |
| uint64_t pfault_compare; |
| uint64_t pfault_select; |
| |
| uint64_t gbea; |
| uint64_t pp; |
| |
| CPU_COMMON |
| |
| /* reset does memset(0) up to here */ |
| |
| uint32_t cpu_num; |
| uint32_t machine_type; |
| |
| uint8_t *storage_keys; |
| |
| uint64_t tod_offset; |
| uint64_t tod_basetime; |
| QEMUTimer *tod_timer; |
| |
| QEMUTimer *cpu_timer; |
| |
| /* |
| * The cpu state represents the logical state of a cpu. In contrast to other |
| * architectures, there is a difference between a halt and a stop on s390. |
| * If all cpus are either stopped (including check stop) or in the disabled |
| * wait state, the vm can be shut down. |
| */ |
| #define CPU_STATE_UNINITIALIZED 0x00 |
| #define CPU_STATE_STOPPED 0x01 |
| #define CPU_STATE_CHECK_STOP 0x02 |
| #define CPU_STATE_OPERATING 0x03 |
| #define CPU_STATE_LOAD 0x04 |
| uint8_t cpu_state; |
| |
| } CPUS390XState; |
| |
| #include "cpu-qom.h" |
| #include <sysemu/kvm.h> |
| |
| /* distinguish between 24 bit and 31 bit addressing */ |
| #define HIGH_ORDER_BIT 0x80000000 |
| |
| /* Interrupt Codes */ |
| /* Program Interrupts */ |
| #define PGM_OPERATION 0x0001 |
| #define PGM_PRIVILEGED 0x0002 |
| #define PGM_EXECUTE 0x0003 |
| #define PGM_PROTECTION 0x0004 |
| #define PGM_ADDRESSING 0x0005 |
| #define PGM_SPECIFICATION 0x0006 |
| #define PGM_DATA 0x0007 |
| #define PGM_FIXPT_OVERFLOW 0x0008 |
| #define PGM_FIXPT_DIVIDE 0x0009 |
| #define PGM_DEC_OVERFLOW 0x000a |
| #define PGM_DEC_DIVIDE 0x000b |
| #define PGM_HFP_EXP_OVERFLOW 0x000c |
| #define PGM_HFP_EXP_UNDERFLOW 0x000d |
| #define PGM_HFP_SIGNIFICANCE 0x000e |
| #define PGM_HFP_DIVIDE 0x000f |
| #define PGM_SEGMENT_TRANS 0x0010 |
| #define PGM_PAGE_TRANS 0x0011 |
| #define PGM_TRANS_SPEC 0x0012 |
| #define PGM_SPECIAL_OP 0x0013 |
| #define PGM_OPERAND 0x0015 |
| #define PGM_TRACE_TABLE 0x0016 |
| #define PGM_SPACE_SWITCH 0x001c |
| #define PGM_HFP_SQRT 0x001d |
| #define PGM_PC_TRANS_SPEC 0x001f |
| #define PGM_AFX_TRANS 0x0020 |
| #define PGM_ASX_TRANS 0x0021 |
| #define PGM_LX_TRANS 0x0022 |
| #define PGM_EX_TRANS 0x0023 |
| #define PGM_PRIM_AUTH 0x0024 |
| #define PGM_SEC_AUTH 0x0025 |
| #define PGM_ALET_SPEC 0x0028 |
| #define PGM_ALEN_SPEC 0x0029 |
| #define PGM_ALE_SEQ 0x002a |
| #define PGM_ASTE_VALID 0x002b |
| #define PGM_ASTE_SEQ 0x002c |
| #define PGM_EXT_AUTH 0x002d |
| #define PGM_STACK_FULL 0x0030 |
| #define PGM_STACK_EMPTY 0x0031 |
| #define PGM_STACK_SPEC 0x0032 |
| #define PGM_STACK_TYPE 0x0033 |
| #define PGM_STACK_OP 0x0034 |
| #define PGM_ASCE_TYPE 0x0038 |
| #define PGM_REG_FIRST_TRANS 0x0039 |
| #define PGM_REG_SEC_TRANS 0x003a |
| #define PGM_REG_THIRD_TRANS 0x003b |
| #define PGM_MONITOR 0x0040 |
| #define PGM_PER 0x0080 |
| #define PGM_CRYPTO 0x0119 |
| |
| /* External Interrupts */ |
| #define EXT_INTERRUPT_KEY 0x0040 |
| #define EXT_CLOCK_COMP 0x1004 |
| #define EXT_CPU_TIMER 0x1005 |
| #define EXT_MALFUNCTION 0x1200 |
| #define EXT_EMERGENCY 0x1201 |
| #define EXT_EXTERNAL_CALL 0x1202 |
| #define EXT_ETR 0x1406 |
| #define EXT_SERVICE 0x2401 |
| #define EXT_VIRTIO 0x2603 |
| |
| /* PSW defines */ |
| #undef PSW_MASK_PER |
| #undef PSW_MASK_DAT |
| #undef PSW_MASK_IO |
| #undef PSW_MASK_EXT |
| #undef PSW_MASK_KEY |
| #undef PSW_SHIFT_KEY |
| #undef PSW_MASK_MCHECK |
| #undef PSW_MASK_WAIT |
| #undef PSW_MASK_PSTATE |
| #undef PSW_MASK_ASC |
| #undef PSW_MASK_CC |
| #undef PSW_MASK_PM |
| #undef PSW_MASK_64 |
| #undef PSW_MASK_32 |
| #undef PSW_MASK_ESA_ADDR |
| |
| #define PSW_MASK_PER 0x4000000000000000ULL |
| #define PSW_MASK_DAT 0x0400000000000000ULL |
| #define PSW_MASK_IO 0x0200000000000000ULL |
| #define PSW_MASK_EXT 0x0100000000000000ULL |
| #define PSW_MASK_KEY 0x00F0000000000000ULL |
| #define PSW_SHIFT_KEY 56 |
| #define PSW_MASK_MCHECK 0x0004000000000000ULL |
| #define PSW_MASK_WAIT 0x0002000000000000ULL |
| #define PSW_MASK_PSTATE 0x0001000000000000ULL |
| #define PSW_MASK_ASC 0x0000C00000000000ULL |
| #define PSW_MASK_CC 0x0000300000000000ULL |
| #define PSW_MASK_PM 0x00000F0000000000ULL |
| #define PSW_MASK_64 0x0000000100000000ULL |
| #define PSW_MASK_32 0x0000000080000000ULL |
| #define PSW_MASK_ESA_ADDR 0x000000007fffffffULL |
| |
| #undef PSW_ASC_PRIMARY |
| #undef PSW_ASC_ACCREG |
| #undef PSW_ASC_SECONDARY |
| #undef PSW_ASC_HOME |
| |
| #define PSW_ASC_PRIMARY 0x0000000000000000ULL |
| #define PSW_ASC_ACCREG 0x0000400000000000ULL |
| #define PSW_ASC_SECONDARY 0x0000800000000000ULL |
| #define PSW_ASC_HOME 0x0000C00000000000ULL |
| |
| /* tb flags */ |
| |
| #define FLAG_MASK_PER (PSW_MASK_PER >> 32) |
| #define FLAG_MASK_DAT (PSW_MASK_DAT >> 32) |
| #define FLAG_MASK_IO (PSW_MASK_IO >> 32) |
| #define FLAG_MASK_EXT (PSW_MASK_EXT >> 32) |
| #define FLAG_MASK_KEY (PSW_MASK_KEY >> 32) |
| #define FLAG_MASK_MCHECK (PSW_MASK_MCHECK >> 32) |
| #define FLAG_MASK_WAIT (PSW_MASK_WAIT >> 32) |
| #define FLAG_MASK_PSTATE (PSW_MASK_PSTATE >> 32) |
| #define FLAG_MASK_ASC (PSW_MASK_ASC >> 32) |
| #define FLAG_MASK_CC (PSW_MASK_CC >> 32) |
| #define FLAG_MASK_PM (PSW_MASK_PM >> 32) |
| #define FLAG_MASK_64 (PSW_MASK_64 >> 32) |
| #define FLAG_MASK_32 0x00001000 |
| |
| /* Control register 0 bits */ |
| #define CR0_LOWPROT 0x0000000010000000ULL |
| #define CR0_EDAT 0x0000000000800000ULL |
| |
| static inline int cpu_mmu_index (CPUS390XState *env) |
| { |
| if (env->psw.mask & PSW_MASK_PSTATE) { |
| return 1; |
| } |
| |
| return 0; |
| } |
| |
| static inline void cpu_get_tb_cpu_state(CPUS390XState* env, target_ulong *pc, |
| target_ulong *cs_base, int *flags) |
| { |
| *pc = env->psw.addr; |
| *cs_base = 0; |
| *flags = ((env->psw.mask >> 32) & ~FLAG_MASK_CC) | |
| ((env->psw.mask & PSW_MASK_32) ? FLAG_MASK_32 : 0); |
| } |
| |
| /* While the PoO talks about ILC (a number between 1-3) what is actually |
| stored in LowCore is shifted left one bit (an even between 2-6). As |
| this is the actual length of the insn and therefore more useful, that |
| is what we want to pass around and manipulate. To make sure that we |
| have applied this distinction universally, rename the "ILC" to "ILEN". */ |
| static inline int get_ilen(uint8_t opc) |
| { |
| switch (opc >> 6) { |
| case 0: |
| return 2; |
| case 1: |
| case 2: |
| return 4; |
| default: |
| return 6; |
| } |
| } |
| |
| #ifndef CONFIG_USER_ONLY |
| /* In several cases of runtime exceptions, we havn't recorded the true |
| instruction length. Use these codes when raising exceptions in order |
| to re-compute the length by examining the insn in memory. */ |
| #define ILEN_LATER 0x20 |
| #define ILEN_LATER_INC 0x21 |
| void trigger_pgm_exception(CPUS390XState *env, uint32_t code, uint32_t ilen); |
| #endif |
| |
| S390CPU *cpu_s390x_init(const char *cpu_model); |
| void s390x_translate_init(void); |
| int cpu_s390x_exec(CPUS390XState *s); |
| |
| /* you can call this signal handler from your SIGBUS and SIGSEGV |
| signal handlers to inform the virtual CPU of exceptions. non zero |
| is returned if the signal was handled by the virtual CPU. */ |
| int cpu_s390x_signal_handler(int host_signum, void *pinfo, |
| void *puc); |
| int s390_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw, |
| int mmu_idx); |
| |
| #include "ioinst.h" |
| |
| #ifndef CONFIG_USER_ONLY |
| static inline hwaddr decode_basedisp_s(CPUS390XState *env, uint32_t ipb) |
| { |
| hwaddr addr = 0; |
| uint8_t reg; |
| |
| reg = ipb >> 28; |
| if (reg > 0) { |
| addr = env->regs[reg]; |
| } |
| addr += (ipb >> 16) & 0xfff; |
| |
| return addr; |
| } |
| |
| /* Base/displacement are at the same locations. */ |
| #define decode_basedisp_rs decode_basedisp_s |
| |
| /* helper functions for run_on_cpu() */ |
| static inline void s390_do_cpu_reset(void *arg) |
| { |
| CPUState *cs = arg; |
| S390CPUClass *scc = S390_CPU_GET_CLASS(cs); |
| |
| scc->cpu_reset(cs); |
| } |
| static inline void s390_do_cpu_full_reset(void *arg) |
| { |
| CPUState *cs = arg; |
| |
| cpu_reset(cs); |
| } |
| |
| void s390x_tod_timer(void *opaque); |
| void s390x_cpu_timer(void *opaque); |
| |
| int s390_virtio_hypercall(CPUS390XState *env); |
| void s390_virtio_irq(int config_change, uint64_t token); |
| |
| #ifdef CONFIG_KVM |
| void kvm_s390_virtio_irq(int config_change, uint64_t token); |
| void kvm_s390_service_interrupt(uint32_t parm); |
| void kvm_s390_vcpu_interrupt(S390CPU *cpu, struct kvm_s390_irq *irq); |
| void kvm_s390_floating_interrupt(struct kvm_s390_irq *irq); |
| int kvm_s390_inject_flic(struct kvm_s390_irq *irq); |
| void kvm_s390_access_exception(S390CPU *cpu, uint16_t code, uint64_t te_code); |
| #else |
| static inline void kvm_s390_virtio_irq(int config_change, uint64_t token) |
| { |
| } |
| static inline void kvm_s390_service_interrupt(uint32_t parm) |
| { |
| } |
| static inline void kvm_s390_access_exception(S390CPU *cpu, uint16_t code, |
| uint64_t te_code) |
| { |
| } |
| #endif |
| S390CPU *s390_cpu_addr2state(uint16_t cpu_addr); |
| unsigned int s390_cpu_halt(S390CPU *cpu); |
| void s390_cpu_unhalt(S390CPU *cpu); |
| unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu); |
| |
| /* service interrupts are floating therefore we must not pass an cpustate */ |
| void s390_sclp_extint(uint32_t parm); |
| |
| /* from s390-virtio-bus */ |
| extern const hwaddr virtio_size; |
| |
| #else |
| static inline unsigned int s390_cpu_halt(S390CPU *cpu) |
| { |
| return 0; |
| } |
| |
| static inline void s390_cpu_unhalt(S390CPU *cpu) |
| { |
| } |
| |
| static inline unsigned int s390_cpu_set_state(uint8_t cpu_state, S390CPU *cpu) |
| { |
| return 0; |
| } |
| #endif |
| void cpu_lock(void); |
| void cpu_unlock(void); |
| |
| typedef struct SubchDev SubchDev; |
| |
| #ifndef CONFIG_USER_ONLY |
| extern void io_subsystem_reset(void); |
| SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid, |
| uint16_t schid); |
| bool css_subch_visible(SubchDev *sch); |
| void css_conditional_io_interrupt(SubchDev *sch); |
| int css_do_stsch(SubchDev *sch, SCHIB *schib); |
| bool css_schid_final(int m, uint8_t cssid, uint8_t ssid, uint16_t schid); |
| int css_do_msch(SubchDev *sch, const SCHIB *schib); |
| int css_do_xsch(SubchDev *sch); |
| int css_do_csch(SubchDev *sch); |
| int css_do_hsch(SubchDev *sch); |
| int css_do_ssch(SubchDev *sch, ORB *orb); |
| int css_do_tsch_get_irb(SubchDev *sch, IRB *irb, int *irb_len); |
| void css_do_tsch_update_subch(SubchDev *sch); |
| int css_do_stcrw(CRW *crw); |
| void css_undo_stcrw(CRW *crw); |
| int css_do_tpi(IOIntCode *int_code, int lowcore); |
| int css_collect_chp_desc(int m, uint8_t cssid, uint8_t f_chpid, uint8_t l_chpid, |
| int rfmt, void *buf); |
| void css_do_schm(uint8_t mbk, int update, int dct, uint64_t mbo); |
| int css_enable_mcsse(void); |
| int css_enable_mss(void); |
| int css_do_rsch(SubchDev *sch); |
| int css_do_rchp(uint8_t cssid, uint8_t chpid); |
| bool css_present(uint8_t cssid); |
| #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 |
| /* Total Core Registers. */ |
| #define S390_NUM_CORE_REGS 18 |
| |
| /* 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_RO 0x200 /* region/segment protection bit */ |
| #define _REGION_ENTRY_TF 0xc0 /* region/segment table offset */ |
| #define _REGION_ENTRY_INV 0x20 /* invalid region table entry */ |
| #define _REGION_ENTRY_TYPE_MASK 0x0c /* region/segment table type mask */ |
| #define _REGION_ENTRY_TYPE_R1 0x0c /* region first table type */ |
| #define _REGION_ENTRY_TYPE_R2 0x08 /* region second table type */ |
| #define _REGION_ENTRY_TYPE_R3 0x04 /* region third table type */ |
| #define _REGION_ENTRY_LENGTH 0x03 /* region third length */ |
| |
| #define _SEGMENT_ENTRY_ORIGIN ~0x7ffULL /* segment table origin */ |
| #define _SEGMENT_ENTRY_FC 0x400 /* format control */ |
| #define _SEGMENT_ENTRY_RO 0x200 /* page protection bit */ |
| #define _SEGMENT_ENTRY_INV 0x20 /* invalid segment table entry */ |
| |
| #define _PAGE_RO 0x200 /* HW read-only bit */ |
| #define _PAGE_INVALID 0x400 /* HW invalid bit */ |
| #define _PAGE_RES0 0x800 /* bit must be zero */ |
| |
| #define SK_C (0x1 << 1) |
| #define SK_R (0x1 << 2) |
| #define SK_F (0x1 << 3) |
| #define SK_ACC_MASK (0xf << 4) |
| |
| #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, bool exc); |
| 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); |
| |
| int s390_cpu_virt_mem_rw(S390CPU *cpu, vaddr laddr, void *hostbuf, int len, |
| bool is_write); |
| |
| #define s390_cpu_virt_mem_read(cpu, laddr, dest, len) \ |
| s390_cpu_virt_mem_rw(cpu, laddr, dest, len, false) |
| #define s390_cpu_virt_mem_write(cpu, laddr, dest, len) \ |
| s390_cpu_virt_mem_rw(cpu, laddr, dest, len, true) |
| #define s390_cpu_virt_mem_check_write(cpu, laddr, len) \ |
| s390_cpu_virt_mem_rw(cpu, laddr, NULL, len, true) |
| |
| /* 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); |
| } |
| |
| /* from s390-virtio-ccw */ |
| #define MEM_SECTION_SIZE 0x10000000UL |
| #define MAX_AVAIL_SLOTS 32 |
| |
| /* 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); |
| int kvm_s390_get_memslot_count(KVMState *s); |
| void kvm_s390_clear_cmma_callback(void *opaque); |
| int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state); |
| void kvm_s390_reset_vcpu(S390CPU *cpu); |
| #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) |
| { |
| } |
| static inline int kvm_s390_get_memslot_count(KVMState *s) |
| { |
| return MAX_AVAIL_SLOTS; |
| } |
| static inline int kvm_s390_set_cpu_state(S390CPU *cpu, uint8_t cpu_state) |
| { |
| return -ENOSYS; |
| } |
| static inline void kvm_s390_reset_vcpu(S390CPU *cpu) |
| { |
| } |
| #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; |
| } |
| |
| static inline int s390_get_memslot_count(KVMState *s) |
| { |
| if (kvm_enabled()) { |
| return kvm_s390_get_memslot_count(s); |
| } else { |
| return MAX_AVAIL_SLOTS; |
| } |
| } |
| |
| 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 |
