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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>
hifive-unleashed-5.1
Xiao Guangrong 2012-06-20 16:00:00 +08:00 committed by Avi Kivity
parent a72faf2504
commit 6fbc277053
2 changed files with 4 additions and 6 deletions
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7
arch/x86/kvm/mmutrace.h
View File

@ -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,

3
arch/x86/kvm/paging_tmpl.h
View File

@ -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;