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| author | Alexander Yarygin <yarygin@linux.vnet.ibm.com> | 2014-07-03 18:29:07 +0400 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-07-17 00:57:33 +0400 |
| commit | 3be8e2a0a53c3179a44a933614f6a893da0b5c19 (patch) | |
| tree | 7f2ebeed37634cfcf46244e80ad1c1c90642e389 /arch/s390/include/uapi/asm/kvm_perf.h | |
| parent | 54c801ff71ba9c9ae41871e226b9d846ff9c6bab (diff) | |
| download | linux-3be8e2a0a53c3179a44a933614f6a893da0b5c19.tar.xz | |
perf kvm: Add stat support on s390
On s390, the vmexit event has a tree-like structure: between
exit_event_begin and exit_event_end several other events may happen and
with each of them refining the previous ones.
This patch adds a decoder for such events to the generic code and also
the files <asm/kvm_perf.h> and kvm-stat.c for s390.
Commands 'perf kvm stat record', 'report' and 'live' are supported.
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: Alexander Yarygin <yarygin@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1404397747-20939-5-git-send-email-yarygin@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'arch/s390/include/uapi/asm/kvm_perf.h')
| -rw-r--r-- | arch/s390/include/uapi/asm/kvm_perf.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/s390/include/uapi/asm/kvm_perf.h b/arch/s390/include/uapi/asm/kvm_perf.h new file mode 100644 index 000000000000..397282727e21 --- /dev/null +++ b/arch/s390/include/uapi/asm/kvm_perf.h @@ -0,0 +1,25 @@ +/* + * Definitions for perf-kvm on s390 + * + * Copyright 2014 IBM Corp. + * Author(s): Alexander Yarygin <yarygin@linux.vnet.ibm.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License (version 2 only) + * as published by the Free Software Foundation. + */ + +#ifndef __LINUX_KVM_PERF_S390_H +#define __LINUX_KVM_PERF_S390_H + +#include <asm/sie.h> + +#define DECODE_STR_LEN 40 + +#define VCPU_ID "id" + +#define KVM_ENTRY_TRACE "kvm:kvm_s390_sie_enter" +#define KVM_EXIT_TRACE "kvm:kvm_s390_sie_exit" +#define KVM_EXIT_REASON "icptcode" + +#endif |