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authorXiao Guangrong2012-06-20 16:00:00 +0800
committerAvi Kivity2012-07-11 16:51:22 +0300
commit6fbc277053836a4d80c72a0843bcbc7595b31e87 (patch)
tree0d5b06c7a2ac3757587993c22e6006a743abe9be /arch/x86/kvm
parenta72faf2504dfc12ff9bfb486a42f2761296666ff (diff)
KVM: MMU: fix kvm_mmu_pagetable_walk tracepoint
The P bit of page fault error code is missed in this tracepoint, fix it by passing the full error code Signed-off-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/x86/kvm')
-rw-r--r--arch/x86/kvm/mmutrace.h7
-rw-r--r--arch/x86/kvm/paging_tmpl.h3
2 files changed, 4 insertions, 6 deletions
diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h
index c364abc8d034..cd6e98333ba3 100644
--- a/arch/x86/kvm/mmutrace.h
+++ b/arch/x86/kvm/mmutrace.h
@@ -54,8 +54,8 @@
*/
TRACE_EVENT(
kvm_mmu_pagetable_walk,
- TP_PROTO(u64 addr, int write_fault, int user_fault, int fetch_fault),
- TP_ARGS(addr, write_fault, user_fault, fetch_fault),
+ TP_PROTO(u64 addr, u32 pferr),
+ TP_ARGS(addr, pferr),
TP_STRUCT__entry(
__field(__u64, addr)
@@ -64,8 +64,7 @@ TRACE_EVENT(
TP_fast_assign(
__entry->addr = addr;
- __entry->pferr = (!!write_fault << 1) | (!!user_fault << 2)
- | (!!fetch_fault << 4);
+ __entry->pferr = pferr;
),
TP_printk("addr %llx pferr %x %s", __entry->addr, __entry->pferr,
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 34f970937ef1..bb7cf01cae76 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -154,8 +154,7 @@ static int FNAME(walk_addr_generic)(struct guest_walker *walker,
const int fetch_fault = access & PFERR_FETCH_MASK;
u16 errcode = 0;
- trace_kvm_mmu_pagetable_walk(addr, write_fault, user_fault,
- fetch_fault);
+ trace_kvm_mmu_pagetable_walk(addr, access);
retry_walk:
eperm = false;
walker->level = mmu->root_level;