include/sysemu/hvf.h

   1 /*
   2  * QEMU Hypervisor.framework (HVF) support
   3  *
   4  * Copyright Google Inc., 2017
   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
  11 /* header to be included in non-HVF-specific code */
  12
  13 #ifndef HVF_H
  14 #define HVF_H
  15
  16 #include "qemu/accel.h"
  17 #include "qom/object.h"
  18
  19 #ifdef COMPILING_PER_TARGET
  20 #include "cpu.h"
  21
  22 #ifdef CONFIG_HVF
  23 extern bool hvf_allowed;
  24 #define hvf_enabled() (hvf_allowed)
  25 #else /* !CONFIG_HVF */
  26 #define hvf_enabled() 0
  27 #endif /* !CONFIG_HVF */
  28
  29 #endif /* COMPILING_PER_TARGET */
  30
  31 #define TYPE_HVF_ACCEL ACCEL_CLASS_NAME("hvf")
  32
  33 typedef struct HVFState HVFState;
  34 DECLARE_INSTANCE_CHECKER(HVFState, HVF_STATE,
  35                          TYPE_HVF_ACCEL)
  36
  37 #ifdef COMPILING_PER_TARGET
  38 struct hvf_sw_breakpoint {
  39     vaddr pc;
  40     vaddr saved_insn;
  41     int use_count;
  42     QTAILQ_ENTRY(hvf_sw_breakpoint) entry;
  43 };
  44
  45 struct hvf_sw_breakpoint *hvf_find_sw_breakpoint(CPUState *cpu,
  46                                                  vaddr pc);
  47 int hvf_sw_breakpoints_active(CPUState *cpu);
  48
  49 int hvf_arch_insert_sw_breakpoint(CPUState *cpu, struct hvf_sw_breakpoint *bp);
  50 int hvf_arch_remove_sw_breakpoint(CPUState *cpu, struct hvf_sw_breakpoint *bp);
  51 int hvf_arch_insert_hw_breakpoint(vaddr addr, vaddr len, int type);
  52 int hvf_arch_remove_hw_breakpoint(vaddr addr, vaddr len, int type);
  53 void hvf_arch_remove_all_hw_breakpoints(void);
  54
  55 /*
  56  * hvf_update_guest_debug:
  57  * @cs: CPUState for the CPU to update
  58  *
  59  * Update guest to enable or disable debugging. Per-arch specifics will be
  60  * handled by calling down to hvf_arch_update_guest_debug.
  61  */
  62 int hvf_update_guest_debug(CPUState *cpu);
  63 void hvf_arch_update_guest_debug(CPUState *cpu);
  64
  65 /*
  66  * Return whether the guest supports debugging.
  67  */
  68 bool hvf_arch_supports_guest_debug(void);
  69 #endif /* COMPILING_PER_TARGET */
  70
  71 #endif