arch/powerpc/kvm/trace_pr.h
Source file repositories/reference/linux-study-clean/arch/powerpc/kvm/trace_pr.h
File Facts
- System
- Linux kernel
- Corpus path
arch/powerpc/kvm/trace_pr.h- Extension
.h- Size
- 6426 bytes
- Lines
- 266
- Domain
- Architecture Layer
- Bucket
- arch/powerpc
- 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.htrace_book3s.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_KVM_PR_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_KVM_PR_H
#include <linux/tracepoint.h>
#include "trace_book3s.h"
#undef TRACE_SYSTEM
#define TRACE_SYSTEM kvm_pr
TRACE_EVENT(kvm_book3s_reenter,
TP_PROTO(int r, struct kvm_vcpu *vcpu),
TP_ARGS(r, vcpu),
TP_STRUCT__entry(
__field( unsigned int, r )
__field( unsigned long, pc )
),
TP_fast_assign(
__entry->r = r;
__entry->pc = kvmppc_get_pc(vcpu);
),
TP_printk("reentry r=%d | pc=0x%lx", __entry->r, __entry->pc)
);
#ifdef CONFIG_PPC_BOOK3S_64
TRACE_EVENT(kvm_book3s_64_mmu_map,
TP_PROTO(int rflags, ulong hpteg, ulong va, kvm_pfn_t hpaddr,
struct kvmppc_pte *orig_pte),
TP_ARGS(rflags, hpteg, va, hpaddr, orig_pte),
TP_STRUCT__entry(
__field( unsigned char, flag_w )
__field( unsigned char, flag_x )
__field( unsigned long, eaddr )
__field( unsigned long, hpteg )
__field( unsigned long, va )
__field( unsigned long long, vpage )
__field( unsigned long, hpaddr )
),
TP_fast_assign(
__entry->flag_w = ((rflags & HPTE_R_PP) == 3) ? '-' : 'w';
__entry->flag_x = (rflags & HPTE_R_N) ? '-' : 'x';
__entry->eaddr = orig_pte->eaddr;
__entry->hpteg = hpteg;
__entry->va = va;
__entry->vpage = orig_pte->vpage;
__entry->hpaddr = hpaddr;
),
TP_printk("KVM: %c%c Map 0x%lx: [%lx] 0x%lx (0x%llx) -> %lx",
__entry->flag_w, __entry->flag_x, __entry->eaddr,
__entry->hpteg, __entry->va, __entry->vpage, __entry->hpaddr)
);
#endif /* CONFIG_PPC_BOOK3S_64 */
TRACE_EVENT(kvm_book3s_mmu_map,
TP_PROTO(struct hpte_cache *pte),
TP_ARGS(pte),
TP_STRUCT__entry(
__field( u64, host_vpn )
__field( u64, pfn )
__field( ulong, eaddr )
__field( u64, vpage )
__field( ulong, raddr )
__field( int, flags )
),
TP_fast_assign(
__entry->host_vpn = pte->host_vpn;
__entry->pfn = pte->pfn;
__entry->eaddr = pte->pte.eaddr;
__entry->vpage = pte->pte.vpage;
__entry->raddr = pte->pte.raddr;
__entry->flags = (pte->pte.may_read ? 0x4 : 0) |
(pte->pte.may_write ? 0x2 : 0) |
(pte->pte.may_execute ? 0x1 : 0);
),
TP_printk("Map: hvpn=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]",
__entry->host_vpn, __entry->pfn, __entry->eaddr,
__entry->vpage, __entry->raddr, __entry->flags)
);
TRACE_EVENT(kvm_book3s_mmu_invalidate,
Annotation
- Immediate include surface: `linux/tracepoint.h`, `trace_book3s.h`, `trace/define_trace.h`.
- Atlas domain: Architecture Layer / arch/powerpc.
- 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.