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authorPaolo Bonzini <pbonzini@redhat.com>2021-08-06 04:35:50 -0400
committerPaolo Bonzini <pbonzini@redhat.com>2021-10-01 03:44:52 -0400
commitf0066d94c92dc5cf7f1a272a1bd324b0fc575292 (patch)
tree5df97c4eebe86d133052e6a56339773009784bb0 /arch/x86/kvm/mmu
parent536f0e6ace95aa8d7b6d5522f0d56ae34e9fc39c (diff)
KVM: MMU: change tracepoints arguments to kvm_page_fault
Pass struct kvm_page_fault to tracepoints instead of extracting the arguments from the struct. This also lets the kvm_mmu_spte_requested tracepoint pick the gfn directly from fault->gfn, instead of using the address. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu')
-rw-r--r--arch/x86/kvm/mmu/mmu.c4
-rw-r--r--arch/x86/kvm/mmu/mmutrace.h18
-rw-r--r--arch/x86/kvm/mmu/paging_tmpl.h2
-rw-r--r--arch/x86/kvm/mmu/tdp_mmu.c2
4 files changed, 13 insertions, 13 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 7491dc685842..5ba0a844f576 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -2986,7 +2986,7 @@ static int __direct_map(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault)
kvm_mmu_hugepage_adjust(vcpu, fault);
- trace_kvm_mmu_spte_requested(fault->addr, fault->goal_level, fault->pfn);
+ trace_kvm_mmu_spte_requested(fault);
for_each_shadow_entry(vcpu, fault->addr, it) {
/*
* We cannot overwrite existing page tables with an NX
@@ -3276,7 +3276,7 @@ static int fast_page_fault(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault)
} while (true);
- trace_fast_page_fault(vcpu, fault->addr, fault->error_code, sptep, spte, ret);
+ trace_fast_page_fault(vcpu, fault, sptep, spte, ret);
walk_shadow_page_lockless_end(vcpu);
return ret;
diff --git a/arch/x86/kvm/mmu/mmutrace.h b/arch/x86/kvm/mmu/mmutrace.h
index 2924a4081a19..b8151bbca36a 100644
--- a/arch/x86/kvm/mmu/mmutrace.h
+++ b/arch/x86/kvm/mmu/mmutrace.h
@@ -252,9 +252,9 @@ TRACE_EVENT(
TRACE_EVENT(
fast_page_fault,
- TP_PROTO(struct kvm_vcpu *vcpu, gpa_t cr2_or_gpa, u32 error_code,
+ TP_PROTO(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault,
u64 *sptep, u64 old_spte, int ret),
- TP_ARGS(vcpu, cr2_or_gpa, error_code, sptep, old_spte, ret),
+ TP_ARGS(vcpu, fault, sptep, old_spte, ret),
TP_STRUCT__entry(
__field(int, vcpu_id)
@@ -268,8 +268,8 @@ TRACE_EVENT(
TP_fast_assign(
__entry->vcpu_id = vcpu->vcpu_id;
- __entry->cr2_or_gpa = cr2_or_gpa;
- __entry->error_code = error_code;
+ __entry->cr2_or_gpa = fault->addr;
+ __entry->error_code = fault->error_code;
__entry->sptep = sptep;
__entry->old_spte = old_spte;
__entry->new_spte = *sptep;
@@ -367,8 +367,8 @@ TRACE_EVENT(
TRACE_EVENT(
kvm_mmu_spte_requested,
- TP_PROTO(gpa_t addr, int level, kvm_pfn_t pfn),
- TP_ARGS(addr, level, pfn),
+ TP_PROTO(struct kvm_page_fault *fault),
+ TP_ARGS(fault),
TP_STRUCT__entry(
__field(u64, gfn)
@@ -377,9 +377,9 @@ TRACE_EVENT(
),
TP_fast_assign(
- __entry->gfn = addr >> PAGE_SHIFT;
- __entry->pfn = pfn | (__entry->gfn & (KVM_PAGES_PER_HPAGE(level) - 1));
- __entry->level = level;
+ __entry->gfn = fault->gfn;
+ __entry->pfn = fault->pfn | (fault->gfn & (KVM_PAGES_PER_HPAGE(fault->goal_level) - 1));
+ __entry->level = fault->goal_level;
),
TP_printk("gfn %llx pfn %llx level %d",
diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h
index 4a263f4511a5..6bc0dbc0baff 100644
--- a/arch/x86/kvm/mmu/paging_tmpl.h
+++ b/arch/x86/kvm/mmu/paging_tmpl.h
@@ -730,7 +730,7 @@ static int FNAME(fetch)(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault,
kvm_mmu_hugepage_adjust(vcpu, fault);
- trace_kvm_mmu_spte_requested(fault->addr, gw->level, fault->pfn);
+ trace_kvm_mmu_spte_requested(fault);
for (; shadow_walk_okay(&it); shadow_walk_next(&it)) {
clear_sp_write_flooding_count(it.sptep);
diff --git a/arch/x86/kvm/mmu/tdp_mmu.c b/arch/x86/kvm/mmu/tdp_mmu.c
index 737af596adaf..3bf85a8c7d15 100644
--- a/arch/x86/kvm/mmu/tdp_mmu.c
+++ b/arch/x86/kvm/mmu/tdp_mmu.c
@@ -995,7 +995,7 @@ int kvm_tdp_mmu_map(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault)
kvm_mmu_hugepage_adjust(vcpu, fault);
- trace_kvm_mmu_spte_requested(fault->addr, fault->goal_level, fault->pfn);
+ trace_kvm_mmu_spte_requested(fault);
rcu_read_lock();