1 /* 2 * Accelerator OPS, used for cpus.c module 3 * 4 * Copyright 2021 SUSE LLC 5 * 6 * This work is licensed under the terms of the GNU GPL, version 2 or later. 7 * See the COPYING file in the top-level directory. 8 */ 9 10 #ifndef ACCEL_OPS_H 11 #define ACCEL_OPS_H 12 13 #include "exec/cpu-common.h" 14 #include "qom/object.h" 15 16 #define ACCEL_OPS_SUFFIX "-ops" 17 #define TYPE_ACCEL_OPS "accel" ACCEL_OPS_SUFFIX 18 #define ACCEL_OPS_NAME(name) (name "-" TYPE_ACCEL_OPS) 19 20 typedef struct AccelOpsClass AccelOpsClass; 21 DECLARE_CLASS_CHECKERS(AccelOpsClass, ACCEL_OPS, TYPE_ACCEL_OPS) 22 23 /** 24 * struct AccelOpsClass - accelerator interfaces 25 * 26 * This structure is used to abstract accelerator differences from the 27 * core CPU code. Not all have to be implemented. 28 */ 29 struct AccelOpsClass { 30 /*< private >*/ 31 ObjectClass parent_class; 32 /*< public >*/ 33 34 /* initialization function called when accel is chosen */ 35 void (*ops_init)(AccelOpsClass *ops); 36 37 bool (*cpus_are_resettable)(void); 38 void (*cpu_reset_hold)(CPUState *cpu); 39 40 void (*create_vcpu_thread)(CPUState *cpu); /* MANDATORY NON-NULL */ 41 void (*kick_vcpu_thread)(CPUState *cpu); 42 bool (*cpu_thread_is_idle)(CPUState *cpu); 43 44 void (*synchronize_post_reset)(CPUState *cpu); 45 void (*synchronize_post_init)(CPUState *cpu); 46 void (*synchronize_state)(CPUState *cpu); 47 void (*synchronize_pre_loadvm)(CPUState *cpu); 48 void (*synchronize_pre_resume)(bool step_pending); 49 50 void (*handle_interrupt)(CPUState *cpu, int mask); 51 52 /** 53 * @get_virtual_clock: fetch virtual clock 54 * @set_virtual_clock: set virtual clock 55 * 56 * These allow the timer subsystem to defer to the accelerator to 57 * fetch time. The set function is needed if the accelerator wants 58 * to track the changes to time as the timer is warped through 59 * various timer events. 60 */ 61 int64_t (*get_virtual_clock)(void); 62 void (*set_virtual_clock)(int64_t time); 63 64 int64_t (*get_elapsed_ticks)(void); 65 66 /* gdbstub hooks */ 67 bool (*supports_guest_debug)(void); 68 int (*update_guest_debug)(CPUState *cpu); 69 int (*insert_breakpoint)(CPUState *cpu, int type, vaddr addr, vaddr len); 70 int (*remove_breakpoint)(CPUState *cpu, int type, vaddr addr, vaddr len); 71 void (*remove_all_breakpoints)(CPUState *cpu); 72 }; 73 74 #endif /* ACCEL_OPS_H */ 75