| Boris Ostrovsky | 5f14154 | 2015-08-10 16:34:33 -0400 | [diff] [blame^] | 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__ */ |