On Fri, Nov 17, 2017 at 05:54:05PM -0800, Megha Dey wrote:

SNIP

> +/* Branch Monitoring default and mask values */
> +#define BM_MAX_WINDOW_SIZE           0x3ff
> +#define BM_MAX_THRESHOLD             0x7f
> +#define BM_MAX_EVENTS                        6
> +#define BM_WINDOW_SIZE_SHIFT         8
> +#define BM_THRESHOLD_SHIFT           8
> +#define BM_EVENT_TYPE_SHIFT          1
> +#define BM_GUEST_DISABLE_SHIFT               3
> +#define BM_LBR_FREEZE_SHIFT          2
> +#define BM_WINDOW_CNT_SEL_SHIFT              24
> +#define BM_CNT_AND_MODE_SHIFT                26
> +#define BM_MISPRED_EVT_CNT_SHIFT     15
> +#define BM_ENABLE                    0x3
> +#define BM_CNTR_ENABLE                       1
> +
> +static unsigned int bm_window_size = BM_MAX_WINDOW_SIZE;
> +static unsigned int bm_guest_disable;
> +static unsigned int bm_lbr_freeze;
> +static unsigned int bm_window_cnt_sel;
> +static unsigned int bm_cnt_and_mode;
> +
> +static unsigned int bm_threshold = BM_MAX_THRESHOLD;
> +static unsigned int bm_mispred_evt_cnt;
> +
> +/* Branch monitoring counter owners */
> +static struct perf_event **bm_counter_owner;

that's still global.. 2 counters per system

jirka
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