# \[PATCH Part2 v5 33/45\] KVM: x86: Update page-fault trace to log full 64-bit error code - From: Brijesh Singh \ - Date: 2021-08-20 16:04:51 - List: linux-mm - Page: https://ratatoskr.run/linux-mm/2021/08/1484190 - Thread: https://ratatoskr.run/kvm/2021/08/1484154/t.md ```text The #NPT error code is a 64-bit value but the trace prints only the lower 32-bits. Some of the fault error code (e.g PFERR_GUEST_FINAL_MASK) are available in the upper 32-bits. Cc: Signed-off-by: Brijesh Singh --- arch/x86/kvm/trace.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index b484141ea15b..1c360e07856f 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -365,12 +365,12 @@ TRACE_EVENT(kvm_inj_exception, * Tracepoint for page fault. */ TRACE_EVENT(kvm_page_fault, - TP_PROTO(unsigned long fault_address, unsigned int error_code), + TP_PROTO(unsigned long fault_address, u64 error_code), TP_ARGS(fault_address, error_code), TP_STRUCT__entry( __field( unsigned long, fault_address ) - __field( unsigned int, error_code ) + __field( u64, error_code ) ), TP_fast_assign( @@ -378,7 +378,7 @@ TRACE_EVENT(kvm_page_fault, __entry->error_code = error_code; ), - TP_printk("address %lx error_code %x", + TP_printk("address %lx error_code %llx", __entry->fault_address, __entry->error_code) ); -- 2.17.1 ```