To analyze the kvm exits with perf, we will need to map the exit codes with the exit reasons. Such a mapping exists today in trace_book3s.h. Currently its not exported to perf.
This patch moves these kvm exit reasons and their mapping from "arch/powerpc/kvm/trace_book3s.h" to "arch/powerpc/include/uapi/asm/trace_book3s.h". Accordingly change the include files in "trace_hv.h" and "trace_pr.h". Also, add a file kvm_perf_book3s.h which defines the kvm tracepoints to trace for kvm exit events. This is added to indicate that the tracepoints are book3s specific. Generic "kvm_perf.h" then can just include "kvm_perf_book3s.h". Signed-off-by: Hemant Kumar <hem...@linux.vnet.ibm.com> --- Changes : - Moved the uapi related changes from the perf side patchset to this patchset. - Made name space changes to indicate changes specific to book3s (Suggested by Scott Wood) arch/powerpc/include/uapi/asm/kvm_perf.h | 6 +++++ arch/powerpc/include/uapi/asm/kvm_perf_book3s.h | 15 ++++++++++++ arch/powerpc/include/uapi/asm/trace_book3s.h | 32 +++++++++++++++++++++++++ arch/powerpc/kvm/trace_book3s.h | 32 ------------------------- arch/powerpc/kvm/trace_hv.h | 2 +- arch/powerpc/kvm/trace_pr.h | 2 +- 6 files changed, 55 insertions(+), 34 deletions(-) create mode 100644 arch/powerpc/include/uapi/asm/kvm_perf.h create mode 100644 arch/powerpc/include/uapi/asm/kvm_perf_book3s.h create mode 100644 arch/powerpc/include/uapi/asm/trace_book3s.h delete mode 100644 arch/powerpc/kvm/trace_book3s.h diff --git a/arch/powerpc/include/uapi/asm/kvm_perf.h b/arch/powerpc/include/uapi/asm/kvm_perf.h new file mode 100644 index 0000000..5ed2ff3 --- /dev/null +++ b/arch/powerpc/include/uapi/asm/kvm_perf.h @@ -0,0 +1,6 @@ +#ifndef _ASM_POWERPC_KVM_PERF_H +#define _ASM_POWERPC_KVM_PERF_H + +#include <asm/kvm_perf_book3s.h> + +#endif diff --git a/arch/powerpc/include/uapi/asm/kvm_perf_book3s.h b/arch/powerpc/include/uapi/asm/kvm_perf_book3s.h new file mode 100644 index 0000000..735901f --- /dev/null +++ b/arch/powerpc/include/uapi/asm/kvm_perf_book3s.h @@ -0,0 +1,15 @@ +#ifndef _ASM_POWERPC_KVM_PERF_BOOK3S_H +#define _ASM_POWERPC_KVM_PERF_BOOK3S_H + +#include <asm/trace_book3s.h> +#include <asm/kvm.h> + +#define DECODE_STR_LEN 20 + +#define VCPU_ID "vcpu_id" + +#define KVM_ENTRY_TRACE "kvm_hv:kvm_guest_enter" +#define KVM_EXIT_TRACE "kvm_hv:kvm_guest_exit" +#define KVM_EXIT_REASON "trap" + +#endif /* _ASM_POWERPC_KVM_PERF_BOOK3S_H */ diff --git a/arch/powerpc/include/uapi/asm/trace_book3s.h b/arch/powerpc/include/uapi/asm/trace_book3s.h new file mode 100644 index 0000000..f647ce0 --- /dev/null +++ b/arch/powerpc/include/uapi/asm/trace_book3s.h @@ -0,0 +1,32 @@ +#if !defined(_TRACE_KVM_BOOK3S_H) +#define _TRACE_KVM_BOOK3S_H + +/* + * Common defines used by the trace macros in trace_pr.h and trace_hv.h + */ + +#define kvm_trace_symbol_exit \ + {0x100, "SYSTEM_RESET"}, \ + {0x200, "MACHINE_CHECK"}, \ + {0x300, "DATA_STORAGE"}, \ + {0x380, "DATA_SEGMENT"}, \ + {0x400, "INST_STORAGE"}, \ + {0x480, "INST_SEGMENT"}, \ + {0x500, "EXTERNAL"}, \ + {0x501, "EXTERNAL_LEVEL"}, \ + {0x502, "EXTERNAL_HV"}, \ + {0x600, "ALIGNMENT"}, \ + {0x700, "PROGRAM"}, \ + {0x800, "FP_UNAVAIL"}, \ + {0x900, "DECREMENTER"}, \ + {0x980, "HV_DECREMENTER"}, \ + {0xc00, "SYSCALL"}, \ + {0xd00, "TRACE"}, \ + {0xe00, "H_DATA_STORAGE"}, \ + {0xe20, "H_INST_STORAGE"}, \ + {0xe40, "H_EMUL_ASSIST"}, \ + {0xf00, "PERFMON"}, \ + {0xf20, "ALTIVEC"}, \ + {0xf40, "VSX"} + +#endif diff --git a/arch/powerpc/kvm/trace_book3s.h b/arch/powerpc/kvm/trace_book3s.h deleted file mode 100644 index f647ce0..0000000 --- a/arch/powerpc/kvm/trace_book3s.h +++ /dev/null @@ -1,32 +0,0 @@ -#if !defined(_TRACE_KVM_BOOK3S_H) -#define _TRACE_KVM_BOOK3S_H - -/* - * Common defines used by the trace macros in trace_pr.h and trace_hv.h - */ - -#define kvm_trace_symbol_exit \ - {0x100, "SYSTEM_RESET"}, \ - {0x200, "MACHINE_CHECK"}, \ - {0x300, "DATA_STORAGE"}, \ - {0x380, "DATA_SEGMENT"}, \ - {0x400, "INST_STORAGE"}, \ - {0x480, "INST_SEGMENT"}, \ - {0x500, "EXTERNAL"}, \ - {0x501, "EXTERNAL_LEVEL"}, \ - {0x502, "EXTERNAL_HV"}, \ - {0x600, "ALIGNMENT"}, \ - {0x700, "PROGRAM"}, \ - {0x800, "FP_UNAVAIL"}, \ - {0x900, "DECREMENTER"}, \ - {0x980, "HV_DECREMENTER"}, \ - {0xc00, "SYSCALL"}, \ - {0xd00, "TRACE"}, \ - {0xe00, "H_DATA_STORAGE"}, \ - {0xe20, "H_INST_STORAGE"}, \ - {0xe40, "H_EMUL_ASSIST"}, \ - {0xf00, "PERFMON"}, \ - {0xf20, "ALTIVEC"}, \ - {0xf40, "VSX"} - -#endif diff --git a/arch/powerpc/kvm/trace_hv.h b/arch/powerpc/kvm/trace_hv.h index 33d9daf..02d0a07 100644 --- a/arch/powerpc/kvm/trace_hv.h +++ b/arch/powerpc/kvm/trace_hv.h @@ -2,7 +2,7 @@ #define _TRACE_KVM_HV_H #include <linux/tracepoint.h> -#include "trace_book3s.h" +#include <uapi/asm/trace_book3s.h> #include <asm/hvcall.h> #include <asm/kvm_asm.h> diff --git a/arch/powerpc/kvm/trace_pr.h b/arch/powerpc/kvm/trace_pr.h index 810507c..a9850c6 100644 --- a/arch/powerpc/kvm/trace_pr.h +++ b/arch/powerpc/kvm/trace_pr.h @@ -3,7 +3,7 @@ #define _TRACE_KVM_PR_H #include <linux/tracepoint.h> -#include "trace_book3s.h" +#include <uapi/asm/trace_book3s.h> #undef TRACE_SYSTEM #define TRACE_SYSTEM kvm_pr -- 1.9.3 -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html