On 01/16/2012 11:32 AM, Xiao Guangrong wrote:
> Add 'perf kvm-events' support to analyze kvm vmexit/mmio/ioport smartly
>
> Usage:
> perf kvm-events record
Why not 'perf record -e kvm'?
> perf kvm-events report
> +static const char *get_exit_reason(long isa, u64 exit_code)
> +{
> + int table_size = ARRAY_SIZE(svm_exit_reasons);
> + struct exit_reasons_table *table = svm_exit_reasons;
> +
> +
> + if (isa == 1) {
> + table = vmx_exit_reasons;
> + table_size = ARRAY_SIZE(vmx_exit_reasons);
> + }
> +
> + while (table_size--) {
> + if (table->exit_code == exit_code)
> + return table->reason;
... table[exit_code] ...
> + table++;
> + }
> +
> + die("unkonw kvm exit code:%ld on %s\n", exit_code, isa == 1 ?
> + "VMX" : "SVM");
"unknown"
> +
> +struct kvm_events_ops {
> + bool (*is_begain_event)(struct event *event, void *data);
begin
> + bool (*is_end_event)(struct event *event);
> + struct event_key (*get_key)(struct event *event, void *data);
> + void (*decode_key)(struct event_key *key, char decode[20]);
> + const char *name;
> +};
> +
> +
> +static struct event_key exit_event_get_key(struct event *event, void *data)
> +{
> + struct event_key key;
> +
> + key.key = raw_field_value(event, "exit_reason", data);
> + key.info = raw_field_value(event, "isa", data);
"isa" is not available on all kernel versions; need to fall back to
/proc/cpuid detection.
> + return key;
> +}
>
--
error compiling committee.c: too many arguments to function
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