[PATCH v3 05/21] KVM: X86: Change parameter for fast_page_fault tracepoint

From: Peter Xu
Date: Thu Jan 09 2020 - 09:57:58 EST


It would be clearer to dump the return value to know easily on whether
did we go through the fast path for handling current page fault.
Remove the old two last parameters because after all the old/new sptes
were dumped in the same line.

Signed-off-by: Peter Xu <peterx@xxxxxxxxxx>
---
arch/x86/kvm/mmutrace.h | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h
index 3c6522b84ff1..456371406d2a 100644
--- a/arch/x86/kvm/mmutrace.h
+++ b/arch/x86/kvm/mmutrace.h
@@ -244,9 +244,6 @@ TRACE_EVENT(
__entry->access)
);

-#define __spte_satisfied(__spte) \
- (__entry->retry && is_writable_pte(__entry->__spte))
-
TRACE_EVENT(
fast_page_fault,
TP_PROTO(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, u32 error_code,
@@ -274,12 +271,10 @@ TRACE_EVENT(
),

TP_printk("vcpu %d gva %llx error_code %s sptep %p old %#llx"
- " new %llx spurious %d fixed %d", __entry->vcpu_id,
+ " new %llx ret %d", __entry->vcpu_id,
__entry->cr2_or_gpa, __print_flags(__entry->error_code, "|",
kvm_mmu_trace_pferr_flags), __entry->sptep,
- __entry->old_spte, __entry->new_spte,
- __spte_satisfied(old_spte), __spte_satisfied(new_spte)
- )
+ __entry->old_spte, __entry->new_spte, __entry->retry)
);

TRACE_EVENT(
--
2.24.1