Add a new capability, KVM_CAP_PMU_CAPABILITY, that takes a bitmask of settings/features to allow userspace to configure PMU virtualization on a per-VM basis. For now, support a single flag, KVM_PMU_CAP_DISABLE, to allow disabling PMU virtualization for a VM even when KVM is configured with enable_pmu=true a module level. To keep KVM simple, disallow changing VM's PMU configuration after vCPUs have been created.
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| @@ -1142,6 +1142,7 @@ struct kvm_ppc_resize_hpt { · 1141 unmodified lines | |||
| 1142 | #define KVM_CAP_SYS_ATTRIBUTES 209 | 1142 | #define KVM_CAP_SYS_ATTRIBUTES 209 |
| 1143 | #define KVM_CAP_PPC_AIL_MODE_3 210 | 1143 | #define KVM_CAP_PPC_AIL_MODE_3 210 |
| 1144 | #define KVM_CAP_S390_MEM_OP_EXTENSION 211 | 1144 | #define KVM_CAP_S390_MEM_OP_EXTENSION 211 |
| 1145 | #define KVM_CAP_PMU_CAPABILITY 212 | ||
| 1145 | 1146 | ||
| 1146 | #ifdef KVM_CAP_IRQ_ROUTING | 1147 | #ifdef KVM_CAP_IRQ_ROUTING |
| 1147 | 1148 | ||
| @@ -1978,6 +1979,8 @@ struct kvm_dirty_gfn { · 830 unmodified lines | |||
| 1978 | #define KVM_BUS_LOCK_DETECTION_OFF (1 << 0) | 1979 | #define KVM_BUS_LOCK_DETECTION_OFF (1 << 0) |
| 1979 | #define KVM_BUS_LOCK_DETECTION_EXIT (1 << 1) | 1980 | #define KVM_BUS_LOCK_DETECTION_EXIT (1 << 1) |
| 1980 | 1981 | ||
| 1982 | #define KVM_PMU_CAP_DISABLE (1 << 0) | ||
| 1983 | |||
| 1981 | /** | 1984 | /** |
| 1982 | * struct kvm_stats_header - Header of per vm/vcpu binary statistics data. | 1985 | * struct kvm_stats_header - Header of per vm/vcpu binary statistics data. |
| 1983 | * @flags: Some extra information for header, always 0 for now. | 1986 | * @flags: Some extra information for header, always 0 for now. |