To analyze the hcalls with perf, we need the hcall related tracepoints information to be exported.
This patch adds hcall tracepoints "kvm_hv:kvm_hcall_enter" and "kvm_hv:kvm_hcall_exit" to kvm_perf.h. So, perf will now know as to what tracepoints to look for if we are using "perf kvm stat record" to collect guest hcall statistics. Signed-off-by: Hemant Kumar <[email protected]> --- Changes: - Not exporting the hcall related codes and names through uapi compared to previous patch. arch/powerpc/include/uapi/asm/kvm_perf_book3s.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/include/uapi/asm/kvm_perf_book3s.h b/arch/powerpc/include/uapi/asm/kvm_perf_book3s.h index 8c8d8c2..1378a8d 100644 --- a/arch/powerpc/include/uapi/asm/kvm_perf_book3s.h +++ b/arch/powerpc/include/uapi/asm/kvm_perf_book3s.h @@ -11,4 +11,8 @@ #define KVM_EXIT_TRACE "kvm_hv:kvm_guest_exit" #define KVM_EXIT_REASON "trap" +#define KVM_HCALL_ENTRY_TRACE "kvm_hv:kvm_hcall_enter" +#define KVM_HCALL_EXIT_TRACE "kvm_hv:kvm_hcall_exit" +#define KVM_HCALL_REASON "req" + #endif /* _ASM_POWERPC_KVM_PERF_BOOK3S_H */ -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
