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author | Alexander Yarygin <yarygin@linux.vnet.ibm.com> | 2014-07-03 17:59:51 +0400 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2014-07-07 16:55:24 -0300 |
commit | 65c647a65c155e69bd5765d5e454982566ac1c62 (patch) | |
tree | 0d4a0ca79c4c0965e10e767cbc01f7e9f0a0736e /tools/perf/builtin-kvm.c | |
parent | df74c13b6c53c97576652f7b2840764ad7d5f949 (diff) | |
download | linux-65c647a65c155e69bd5765d5e454982566ac1c62.tar.gz linux-65c647a65c155e69bd5765d5e454982566ac1c62.tar.bz2 linux-65c647a65c155e69bd5765d5e454982566ac1c62.zip |
perf kvm: Refactoring of cpu_isa_config()
cpu_isa_config() does two different things: searching for cpuid and
initializing perf_kvm_stat struct with proper parameters.
Let's move initialization to a separate function cpu_isa_init(), which
is used to initialize all possible ISAs and can be used to init
arch-depended things.
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
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: 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/1404395992-17095-4-git-send-email-yarygin@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/builtin-kvm.c')
-rw-r--r-- | tools/perf/builtin-kvm.c | 39 |
1 files changed, 23 insertions, 16 deletions
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 75f354459005..41dbeaf8cc11 100644 --- a/tools/perf/builtin-kvm.c +++ b/tools/perf/builtin-kvm.c @@ -835,36 +835,45 @@ static int process_sample_event(struct perf_tool *tool, return 0; } +static int cpu_isa_init(struct perf_kvm_stat *kvm, const char *cpuid) +{ + if (strstr(cpuid, "Intel")) { + kvm->exit_reasons = vmx_exit_reasons; + kvm->exit_reasons_isa = "VMX"; + } else if (strstr(cpuid, "AMD")) { + kvm->exit_reasons = svm_exit_reasons; + kvm->exit_reasons_isa = "SVM"; + } else + return -ENOTSUP; + + return 0; +} + static int cpu_isa_config(struct perf_kvm_stat *kvm) { char buf[64], *cpuid; - int err, isa; + int err; if (kvm->live) { err = get_cpuid(buf, sizeof(buf)); if (err != 0) { - pr_err("Failed to look up CPU type (Intel or AMD)\n"); + pr_err("Failed to look up CPU type\n"); return err; } cpuid = buf; } else cpuid = kvm->session->header.env.cpuid; - if (strstr(cpuid, "Intel")) - isa = 1; - else if (strstr(cpuid, "AMD")) - isa = 0; - else { - pr_err("CPU %s is not supported.\n", cpuid); - return -ENOTSUP; + if (!cpuid) { + pr_err("Failed to look up CPU type\n"); + return -EINVAL; } - if (isa == 1) { - kvm->exit_reasons = vmx_exit_reasons; - kvm->exit_reasons_isa = "VMX"; - } + err = cpu_isa_init(kvm, cpuid); + if (err == -ENOTSUP) + pr_err("CPU %s is not supported.\n", cpuid); - return 0; + return err; } static bool verify_vcpu(int vcpu) @@ -1583,8 +1592,6 @@ static int kvm_cmd_stat(const char *file_name, int argc, const char **argv) .report_event = "vmexit", .sort_key = "sample", - .exit_reasons = svm_exit_reasons, - .exit_reasons_isa = "SVM", }; if (argc == 1) { |