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.

Dependency Surface

Detected Declarations

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

Implementation Notes