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Commit 4c4eea77 authored by Alexander Graf's avatar Alexander Graf Committed by Avi Kivity
Browse files

KVM: PPC: Add tracepoint for generic mmu map 



This patch moves the generic mmu map debugging over to tracepoints.

Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
parent 82fdee7b

arch/powerpc/kvm/book3s_mmu_hpte.c

+3 −0
Original line number Diff line number Diff line
@@ -21,6 +21,7 @@ 
#include <linux/kvm_host.h>

#include <linux/hash.h>

#include <linux/slab.h>

#include "trace.h"



#include <asm/kvm_ppc.h>

#include <asm/kvm_book3s.h>
@@ -66,6 +67,8 @@ void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte) 
{

	u64 index;



	trace_kvm_book3s_mmu_map(pte);



	spin_lock(&vcpu->arch.mmu_lock);



	/* Add to ePTE list */

arch/powerpc/kvm/trace.h

+29 −0
Original line number Diff line number Diff line
@@ -181,6 +181,35 @@ TRACE_EVENT(kvm_book3s_64_mmu_map, 


#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_va		)

		__field(	u64,		pfn		)

		__field(	ulong,		eaddr		)

		__field(	u64,		vpage		)

		__field(	ulong,		raddr		)

		__field(	int,		flags		)

	),



	TP_fast_assign(

		__entry->host_va	= pte->host_va;

		__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: hva=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]",

		  __entry->host_va, __entry->pfn, __entry->eaddr,

		  __entry->vpage, __entry->raddr, __entry->flags)

);



#endif /* CONFIG_PPC_BOOK3S */



#endif /* _TRACE_KVM_H */