Messages in this thread Patch in this message | | | Date | Tue, 29 May 2012 14:51:31 +0800 | From | Xiao Guangrong <> | Subject | [PATCH v6 8/9] KVM: MMU: fix kvm_mmu_pagetable_walk tracepoint |
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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> --- arch/x86/kvm/mmutrace.h | 7 +++---- arch/x86/kvm/paging_tmpl.h | 3 +-- 2 files changed, 4 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h index c364abc..cd6e983 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 34f9709..bb7cf01 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; -- 1.7.7.6
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