include/xen/interface/xenpmu.h

   1 #ifndef __XEN_PUBLIC_XENPMU_H__
   2 #define __XEN_PUBLIC_XENPMU_H__
   3
   4 #include "xen.h"
   5
   6 #define XENPMU_VER_MAJ    0
   7 #define XENPMU_VER_MIN    1
   8
   9 /*
  10  * ` enum neg_errnoval
  11  * ` HYPERVISOR_xenpmu_op(enum xenpmu_op cmd, struct xenpmu_params *args);
  12  *
  13  * @cmd  == XENPMU_* (PMU operation)
  14  * @args == struct xenpmu_params
  15  */
  16 /* ` enum xenpmu_op { */
  17 #define XENPMU_mode_get        0 /* Also used for getting PMU version */
  18 #define XENPMU_mode_set        1
  19 #define XENPMU_feature_get     2
  20 #define XENPMU_feature_set     3
  21 #define XENPMU_init            4
  22 #define XENPMU_finish          5
  23
  24 /* ` } */
  25
  26 /* Parameters structure for HYPERVISOR_xenpmu_op call */
  27 struct xen_pmu_params {
  28         /* IN/OUT parameters */
  29         struct {
  30                 uint32_t maj;
  31                 uint32_t min;
  32         } version;
  33         uint64_t val;
  34
  35         /* IN parameters */
  36         uint32_t vcpu;
  37         uint32_t pad;
  38 };
  39
  40 /* PMU modes:
  41  * - XENPMU_MODE_OFF:   No PMU virtualization
  42  * - XENPMU_MODE_SELF:  Guests can profile themselves
  43  * - XENPMU_MODE_HV:    Guests can profile themselves, dom0 profiles
  44  *                      itself and Xen
  45  * - XENPMU_MODE_ALL:   Only dom0 has access to VPMU and it profiles
  46  *                      everyone: itself, the hypervisor and the guests.
  47  */
  48 #define XENPMU_MODE_OFF           0
  49 #define XENPMU_MODE_SELF          (1<<0)
  50 #define XENPMU_MODE_HV            (1<<1)
  51 #define XENPMU_MODE_ALL           (1<<2)
  52
  53 /*
  54  * PMU features:
  55  * - XENPMU_FEATURE_INTEL_BTS: Intel BTS support (ignored on AMD)
  56  */
  57 #define XENPMU_FEATURE_INTEL_BTS  1
  58
  59 #endif /* __XEN_PUBLIC_XENPMU_H__ */