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KVM: x86/mmu: Drop trace_kvm_age_page() tracepoint 

Remove x86's trace_kvm_age_page() tracepoint.  It's mostly redundant with
the common trace_kvm_age_hva() tracepoint, and if there is a need for the
extra details, e.g. gfn, referenced, etc... those details should be added
to the common tracepoint so that all architectures and MMUs benefit from
the info.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210326021957.1424875-19-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2021-03-25 19:19:57 -07:00 committed by Paolo Bonzini
parent 501b918525
commit 6dfbd6b5d5
3 changed files with 0 additions and 27 deletions
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1
arch/x86/kvm/mmu/mmu.c
View File

@ -1502,7 +1502,6 @@ static int kvm_age_rmapp(struct kvm *kvm, struct kvm_rmap_head *rmap_head,
for_each_rmap_spte(rmap_head, &iter, sptep)
young |= mmu_spte_age(sptep);
trace_kvm_age_page(gfn, level, slot, young);
return young;
}

2
arch/x86/kvm/mmu/tdp_mmu.c
View File

@ -981,8 +981,6 @@ static int age_gfn_range(struct kvm *kvm, struct kvm_memory_slot *slot,
tdp_mmu_set_spte_no_acc_track(kvm, &iter, new_spte);
young = 1;
trace_kvm_age_page(iter.gfn, iter.level, slot, young);
}
rcu_read_unlock();

24
include/trace/events/kvm.h
View File

@ -255,30 +255,6 @@ TRACE_EVENT(kvm_fpu,
TP_printk("%s", __print_symbolic(__entry->load, kvm_fpu_load_symbol))
);
TRACE_EVENT(kvm_age_page,
TP_PROTO(ulong gfn, int level, struct kvm_memory_slot *slot, int ref),
TP_ARGS(gfn, level, slot, ref),
TP_STRUCT__entry(
__field( u64, hva )
__field( u64, gfn )
__field( u8, level )
__field( u8, referenced )
),
TP_fast_assign(
__entry->gfn = gfn;
__entry->level = level;
__entry->hva = ((gfn - slot->base_gfn) <<
PAGE_SHIFT) + slot->userspace_addr;
__entry->referenced = ref;
),
TP_printk("hva %llx gfn %llx level %u %s",
__entry->hva, __entry->gfn, __entry->level,
__entry->referenced ? "YOUNG" : "OLD")
);
#ifdef CONFIG_KVM_ASYNC_PF
DECLARE_EVENT_CLASS(kvm_async_get_page_class,