arch/arm64/kvm/trace_handle_exit.h
Source file repositories/reference/linux-study-clean/arch/arm64/kvm/trace_handle_exit.h
File Facts
- System
- Linux kernel
- Corpus path
arch/arm64/kvm/trace_handle_exit.h- Extension
.h- Size
- 3208 bytes
- Lines
- 145
- Domain
- Architecture Layer
- Bucket
- arch/arm64
- Inferred role
- Architecture Layer: implementation source
- Status
- source implementation candidate
Why This File Exists
CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.
- Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.
Dependency Surface
linux/tracepoint.hsys_regs.htrace/define_trace.h
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#if !defined(_TRACE_HANDLE_EXIT_ARM64_KVM_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_HANDLE_EXIT_ARM64_KVM_H
#include <linux/tracepoint.h>
#include "sys_regs.h"
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm
TRACE_EVENT(kvm_wfx_arm64,
TP_PROTO(unsigned long vcpu_pc, bool is_wfe),
TP_ARGS(vcpu_pc, is_wfe),
TP_STRUCT__entry(
__field(unsigned long, vcpu_pc)
__field(bool, is_wfe)
),
TP_fast_assign(
__entry->vcpu_pc = vcpu_pc;
__entry->is_wfe = is_wfe;
),
TP_printk("guest executed wf%c at: 0x%016lx",
__entry->is_wfe ? 'e' : 'i', __entry->vcpu_pc)
);
TRACE_EVENT(kvm_hvc_arm64,
TP_PROTO(unsigned long vcpu_pc, unsigned long r0, unsigned long imm),
TP_ARGS(vcpu_pc, r0, imm),
TP_STRUCT__entry(
__field(unsigned long, vcpu_pc)
__field(unsigned long, r0)
__field(unsigned long, imm)
),
TP_fast_assign(
__entry->vcpu_pc = vcpu_pc;
__entry->r0 = r0;
__entry->imm = imm;
),
TP_printk("HVC at 0x%016lx (r0: 0x%016lx, imm: 0x%lx)",
__entry->vcpu_pc, __entry->r0, __entry->imm)
);
/*
* The dreg32 name is a leftover from a distant past. This will really
* output a 64bit value...
*/
TRACE_EVENT(kvm_arm_set_dreg32,
TP_PROTO(const char *name, __u64 value),
TP_ARGS(name, value),
TP_STRUCT__entry(
__field(const char *, name)
__field(__u64, value)
),
TP_fast_assign(
__entry->name = name;
__entry->value = value;
),
TP_printk("%s: 0x%llx", __entry->name, __entry->value)
);
TRACE_EVENT(kvm_handle_sys_reg,
TP_PROTO(unsigned long hsr),
TP_ARGS(hsr),
TP_STRUCT__entry(
__field(unsigned long, hsr)
),
TP_fast_assign(
__entry->hsr = hsr;
),
TP_printk("HSR 0x%08lx", __entry->hsr)
);
TRACE_EVENT(kvm_sys_access,
TP_PROTO(unsigned long vcpu_pc, struct sys_reg_params *params, const struct sys_reg_desc *reg),
TP_ARGS(vcpu_pc, params, reg),
TP_STRUCT__entry(
__field(unsigned long, vcpu_pc)
__field(bool, is_write)
Annotation
- Immediate include surface: `linux/tracepoint.h`, `sys_regs.h`, `trace/define_trace.h`.
- Atlas domain: Architecture Layer / arch/arm64.
- Implementation status: source implementation candidate.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.