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KVM: PPC: Add tracepoint for generic mmu map

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

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2010-08-02 12:51:07 +02:00 committed by Avi Kivity
parent 82fdee7bce
commit 4c4eea7769
2 changed files with 32 additions and 0 deletions
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3
arch/powerpc/kvm/book3s_mmu_hpte.c
View File

@ -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 */

29
arch/powerpc/kvm/trace.h
View File

@ -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 */