xref: /openbmc/qemu/include/system/hvf_int.h (revision f96b157ebb93f94cd56ebbc99bc20982b8fd86ef)
1 /*
2  * QEMU Hypervisor.framework (HVF) support
3  *
4  * This work is licensed under the terms of the GNU GPL, version 2 or later.
5  * See the COPYING file in the top-level directory.
6  *
7  */
8 
9 /* header to be included in HVF-specific code */
10 
11 #ifndef HVF_INT_H
12 #define HVF_INT_H
13 
14 #include "qemu/queue.h"
15 #include "exec/vaddr.h"
16 #include "qom/object.h"
17 #include "accel/accel-ops.h"
18 
19 #ifdef __aarch64__
20 #include <Hypervisor/Hypervisor.h>
21 typedef hv_vcpu_t hvf_vcpuid;
22 #else
23 #include <Hypervisor/hv.h>
24 typedef hv_vcpuid_t hvf_vcpuid;
25 #endif
26 
27 /* hvf_slot flags */
28 #define HVF_SLOT_LOG (1 << 0)
29 
30 typedef struct hvf_slot {
31     uint64_t start;
32     uint64_t size;
33     uint8_t *mem;
34     int slot_id;
35     uint32_t flags;
36     MemoryRegion *region;
37 } hvf_slot;
38 
39 typedef struct hvf_vcpu_caps {
40     uint64_t vmx_cap_pinbased;
41     uint64_t vmx_cap_procbased;
42     uint64_t vmx_cap_procbased2;
43     uint64_t vmx_cap_entry;
44     uint64_t vmx_cap_exit;
45     uint64_t vmx_cap_preemption_timer;
46 } hvf_vcpu_caps;
47 
48 struct HVFState {
49     AccelState parent_obj;
50 
51     hvf_slot slots[32];
52     int num_slots;
53 
54     hvf_vcpu_caps *hvf_caps;
55     uint64_t vtimer_offset;
56     QTAILQ_HEAD(, hvf_sw_breakpoint) hvf_sw_breakpoints;
57 };
58 extern HVFState *hvf_state;
59 
60 struct AccelCPUState {
61     hvf_vcpuid fd;
62     void *exit;
63     bool vtimer_masked;
64     sigset_t unblock_ipi_mask;
65     bool guest_debug_enabled;
66 };
67 
68 void assert_hvf_ok_impl(hv_return_t ret, const char *file, unsigned int line,
69                         const char *exp);
70 #define assert_hvf_ok(EX) assert_hvf_ok_impl((EX), __FILE__, __LINE__, #EX)
71 const char *hvf_return_string(hv_return_t ret);
72 int hvf_arch_init(void);
73 hv_return_t hvf_arch_vm_create(MachineState *ms, uint32_t pa_range);
74 int hvf_arch_init_vcpu(CPUState *cpu);
75 void hvf_arch_vcpu_destroy(CPUState *cpu);
76 int hvf_vcpu_exec(CPUState *);
77 hvf_slot *hvf_find_overlap_slot(uint64_t, uint64_t);
78 int hvf_put_registers(CPUState *);
79 int hvf_get_registers(CPUState *);
80 void hvf_kick_vcpu_thread(CPUState *cpu);
81 
82 struct hvf_sw_breakpoint {
83     vaddr pc;
84     vaddr saved_insn;
85     int use_count;
86     QTAILQ_ENTRY(hvf_sw_breakpoint) entry;
87 };
88 
89 struct hvf_sw_breakpoint *hvf_find_sw_breakpoint(CPUState *cpu,
90                                                  vaddr pc);
91 int hvf_sw_breakpoints_active(CPUState *cpu);
92 
93 int hvf_arch_insert_sw_breakpoint(CPUState *cpu, struct hvf_sw_breakpoint *bp);
94 int hvf_arch_remove_sw_breakpoint(CPUState *cpu, struct hvf_sw_breakpoint *bp);
95 int hvf_arch_insert_hw_breakpoint(vaddr addr, vaddr len, int type);
96 int hvf_arch_remove_hw_breakpoint(vaddr addr, vaddr len, int type);
97 void hvf_arch_remove_all_hw_breakpoints(void);
98 
99 /*
100  * hvf_update_guest_debug:
101  * @cs: CPUState for the CPU to update
102  *
103  * Update guest to enable or disable debugging. Per-arch specifics will be
104  * handled by calling down to hvf_arch_update_guest_debug.
105  */
106 int hvf_update_guest_debug(CPUState *cpu);
107 void hvf_arch_update_guest_debug(CPUState *cpu);
108 
109 /*
110  * Return whether the guest supports debugging.
111  */
112 bool hvf_arch_supports_guest_debug(void);
113 
114 #endif
115