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xen-devel
Re: [Xen-devel] [PATCH 1 of 2] xen, tracing: Make a new hardware-related
NB.
On Thu, Jun 30, 2011 at 11:31 AM, George Dunlap
<george.dunlap@xxxxxxxxxxxxx> wrote:
> Power management seems a very narrow focus for its own class, of
> which we have a limited number due to the layout of the trace
> records. Make a hardware-event trace class, and move power management
> events into a subclass of those.
>
> Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxxxxxx>
>
> diff -r 33717472f37e -r 9744f91e8c0c xen/include/public/trace.h
> --- a/xen/include/public/trace.h Tue Jun 28 18:15:44 2011 +0100
> +++ b/xen/include/public/trace.h Thu Jun 30 10:32:12 2011 +0100
> @@ -38,7 +38,7 @@
> #define TRC_MEM 0x0010f000 /* Xen memory trace */
> #define TRC_PV 0x0020f000 /* Xen PV traces */
> #define TRC_SHADOW 0x0040f000 /* Xen shadow tracing */
> -#define TRC_PM 0x0080f000 /* Xen power management trace */
> +#define TRC_HW 0x0080f000 /* Xen hardware-related traces */
> #define TRC_GUEST 0x0800f000 /* Guest-generated traces */
> #define TRC_ALL 0x0ffff000
> #define TRC_HD_TO_EVENT(x) ((x)&0x0fffffff)
> @@ -57,6 +57,9 @@
> #define TRC_SCHED_CLASS 0x00022000 /* Scheduler-specific */
> #define TRC_SCHED_VERBOSE 0x00028000 /* More inclusive scheduling */
>
> +/* Trace classes for Hardware */
> +#define TRC_HW_PM 0x00801000 /* Power management traces */
> +
> /* Trace events per class */
> #define TRC_LOST_RECORDS (TRC_GEN + 1)
> #define TRC_TRACE_WRAP_BUFFER (TRC_GEN + 2)
> @@ -165,14 +168,10 @@
> #define TRC_HVM_IOPORT_WRITE (TRC_HVM_HANDLER + 0x216)
> #define TRC_HVM_IOMEM_WRITE (TRC_HVM_HANDLER + 0x217)
>
> -/* trace subclasses for power management */
> -#define TRC_PM_FREQ 0x00801000 /* xen cpu freq events */
> -#define TRC_PM_IDLE 0x00802000 /* xen cpu idle events */
> -
> /* trace events for per class */
> -#define TRC_PM_FREQ_CHANGE (TRC_PM_FREQ + 0x01)
> -#define TRC_PM_IDLE_ENTRY (TRC_PM_IDLE + 0x01)
> -#define TRC_PM_IDLE_EXIT (TRC_PM_IDLE + 0x02)
> +#define TRC_PM_FREQ_CHANGE (TRC_HW_PM + 0x01)
> +#define TRC_PM_IDLE_ENTRY (TRC_HW_PM + 0x02)
> +#define TRC_PM_IDLE_EXIT (TRC_HW_PM + 0x03)
>
> /* This structure represents a single trace buffer record. */
> struct t_rec {
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
>
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