Commit-ID: 65c647a65c155e69bd5765d5e454982566ac1c62 Gitweb: http://git.kernel.org/tip/65c647a65c155e69bd5765d5e454982566ac1c62 Author: Alexander Yarygin <[email protected]> AuthorDate: Thu, 3 Jul 2014 17:59:51 +0400 Committer: Arnaldo Carvalho de Melo <[email protected]> CommitDate: Mon, 7 Jul 2014 16:55:24 -0300
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 <[email protected]> Reviewed-by: David Ahern <[email protected]> Signed-off-by: Alexander Yarygin <[email protected]> Acked-by: Christian Borntraeger <[email protected]> Cc: Christian Borntraeger <[email protected]> Cc: Cornelia Huck <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> --- tools/perf/builtin-kvm.c | 39 +++++++++++++++++++++++---------------- 1 file changed, 23 insertions(+), 16 deletions(-) diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c index 75f3544..41dbeaf 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) { -- 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/
