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/vaddr.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 DECLARE_CLASS_CHECKERS(AccelOpsClass, ACCEL_OPS, TYPE_ACCEL_OPS) 21 22 /** 23 * struct AccelOpsClass - accelerator interfaces 24 * 25 * This structure is used to abstract accelerator differences from the 26 * core CPU code. Not all have to be implemented. 27 */ 28 struct AccelOpsClass { 29 /*< private >*/ 30 ObjectClass parent_class; 31 /*< public >*/ 32 33 /* initialization function called when accel is chosen */ 34 void (*ops_init)(AccelOpsClass *ops); 35 36 bool (*cpus_are_resettable)(void); 37 void (*cpu_reset_hold)(CPUState *cpu); 38 39 void (*create_vcpu_thread)(CPUState *cpu); /* MANDATORY NON-NULL */ 40 void (*kick_vcpu_thread)(CPUState *cpu); 41 bool (*cpu_thread_is_idle)(CPUState *cpu); 42 43 void (*synchronize_post_reset)(CPUState *cpu); 44 void (*synchronize_post_init)(CPUState *cpu); 45 void (*synchronize_state)(CPUState *cpu); 46 void (*synchronize_pre_loadvm)(CPUState *cpu); 47 void (*synchronize_pre_resume)(bool step_pending); 48 49 void (*handle_interrupt)(CPUState *cpu, int mask); 50 51 /** 52 * @get_virtual_clock: fetch virtual clock 53 * @set_virtual_clock: set virtual clock 54 * 55 * These allow the timer subsystem to defer to the accelerator to 56 * fetch time. The set function is needed if the accelerator wants 57 * to track the changes to time as the timer is warped through 58 * various timer events. 59 */ 60 int64_t (*get_virtual_clock)(void); 61 void (*set_virtual_clock)(int64_t time); 62 63 int64_t (*get_elapsed_ticks)(void); 64 65 /* gdbstub hooks */ 66 bool (*supports_guest_debug)(void); 67 int (*update_guest_debug)(CPUState *cpu); 68 int (*insert_breakpoint)(CPUState *cpu, int type, vaddr addr, vaddr len); 69 int (*remove_breakpoint)(CPUState *cpu, int type, vaddr addr, vaddr len); 70 void (*remove_all_breakpoints)(CPUState *cpu); 71 }; 72 73 #endif /* ACCEL_OPS_H */ 74