projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 5f141548 BO |
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 | |
| 6b08cd63 BO |
23 | #define XENPMU_lvtpc_set 6 |
| 24 | #define XENPMU_flush 7 | |
| 5f141548 BO |
25 | |
| 26 | /* ` } */ | |
| 27 | ||
| 28 | /* Parameters structure for HYPERVISOR_xenpmu_op call */ | |
| 29 | struct xen_pmu_params { | |
| 30 | /* IN/OUT parameters */ | |
| 31 | struct { | |
| 32 | uint32_t maj; | |
| 33 | uint32_t min; | |
| 34 | } version; | |
| 35 | uint64_t val; | |
| 36 | ||
| 37 | /* IN parameters */ | |
| 38 | uint32_t vcpu; | |
| 39 | uint32_t pad; | |
| 40 | }; | |
| 41 | ||
| 42 | /* PMU modes: | |
| 43 | * - XENPMU_MODE_OFF: No PMU virtualization | |
| 44 | * - XENPMU_MODE_SELF: Guests can profile themselves | |
| 45 | * - XENPMU_MODE_HV: Guests can profile themselves, dom0 profiles | |
| 46 | * itself and Xen | |
| 47 | * - XENPMU_MODE_ALL: Only dom0 has access to VPMU and it profiles | |
| 48 | * everyone: itself, the hypervisor and the guests. | |
| 49 | */ | |
| 50 | #define XENPMU_MODE_OFF 0 | |
| 51 | #define XENPMU_MODE_SELF (1<<0) | |
| 52 | #define XENPMU_MODE_HV (1<<1) | |
| 53 | #define XENPMU_MODE_ALL (1<<2) | |
| 54 | ||
| 55 | /* | |
| 56 | * PMU features: | |
| 57 | * - XENPMU_FEATURE_INTEL_BTS: Intel BTS support (ignored on AMD) | |
| 58 | */ | |
| 59 | #define XENPMU_FEATURE_INTEL_BTS 1 | |
| 60 | ||
| 65d0cf0b BO |
61 | /* |
| 62 | * Shared PMU data between hypervisor and PV(H) domains. | |
| 63 | * | |
| 64 | * The hypervisor fills out this structure during PMU interrupt and sends an | |
| 65 | * interrupt to appropriate VCPU. | |
| 66 | * Architecture-independent fields of xen_pmu_data are WO for the hypervisor | |
| 67 | * and RO for the guest but some fields in xen_pmu_arch can be writable | |
| 68 | * by both the hypervisor and the guest (see arch-$arch/pmu.h). | |
| 69 | */ | |
| 70 | struct xen_pmu_data { | |
| 71 | /* Interrupted VCPU */ | |
| 72 | uint32_t vcpu_id; | |
| 73 | ||
| 74 | /* | |
| 75 | * Physical processor on which the interrupt occurred. On non-privileged | |
| 76 | * guests set to vcpu_id; | |
| 77 | */ | |
| 78 | uint32_t pcpu_id; | |
| 79 | ||
| 80 | /* | |
| 81 | * Domain that was interrupted. On non-privileged guests set to | |
| 82 | * DOMID_SELF. | |
| 83 | * On privileged guests can be DOMID_SELF, DOMID_XEN, or, when in | |
| 84 | * XENPMU_MODE_ALL mode, domain ID of another domain. | |
| 85 | */ | |
| 86 | domid_t domain_id; | |
| 87 | ||
| 88 | uint8_t pad[6]; | |
| 89 | ||
| 90 | /* Architecture-specific information */ | |
| 91 | struct xen_pmu_arch pmu; | |
| 92 | }; | |
| 93 | ||
| 5f141548 | 94 | #endif /* __XEN_PUBLIC_XENPMU_H__ */ |