[PATCH Part2 v5 33/45] KVM: x86: Update page-fault trace to log full 64-bit error code
From: Brijesh Singh <hidden>
Date: 2021-08-20 16:04:51
Also in:
kvm, linux-crypto, linux-mm, lkml
Subsystem:
kernel virtual machine for x86 (kvm/x86), the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Sean Christopherson, Paolo Bonzini, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
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: <stable@kernel.org> Signed-off-by: Brijesh Singh <redacted> --- 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) );
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2.17.1