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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * Privileged (non-hypervisor) host registers to save.
- */
- struct p9_host_os_sprs {
- unsigned long iamr;
- unsigned long amr;
- unsigned int pmc1;
- unsigned int pmc2;
- unsigned int pmc3;
- unsigned int pmc4;
- unsigned int pmc5;
- unsigned int pmc6;
- unsigned long mmcr0;
- unsigned long mmcr1;
- unsigned long mmcr2;
- unsigned long mmcr3;
- unsigned long mmcra;
- unsigned long siar;
- unsigned long sier1;
- unsigned long sier2;
- unsigned long sier3;
- unsigned long sdar;
- };
- static inline bool nesting_enabled(struct kvm *kvm)
- {
- return kvm->arch.nested_enable && kvm_is_radix(kvm);
- }
- bool load_vcpu_state(struct kvm_vcpu *vcpu,
- struct p9_host_os_sprs *host_os_sprs);
- void store_vcpu_state(struct kvm_vcpu *vcpu);
- void save_p9_host_os_sprs(struct p9_host_os_sprs *host_os_sprs);
- void restore_p9_host_os_sprs(struct kvm_vcpu *vcpu,
- struct p9_host_os_sprs *host_os_sprs);
- void switch_pmu_to_guest(struct kvm_vcpu *vcpu,
- struct p9_host_os_sprs *host_os_sprs);
- void switch_pmu_to_host(struct kvm_vcpu *vcpu,
- struct p9_host_os_sprs *host_os_sprs);
- #ifdef CONFIG_KVM_BOOK3S_HV_P9_TIMING
- void accumulate_time(struct kvm_vcpu *vcpu, struct kvmhv_tb_accumulator *next);
- #define start_timing(vcpu, next) accumulate_time(vcpu, next)
- #define end_timing(vcpu) accumulate_time(vcpu, NULL)
- #else
- #define accumulate_time(vcpu, next) do {} while (0)
- #define start_timing(vcpu, next) do {} while (0)
- #define end_timing(vcpu) do {} while (0)
- #endif
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