diff options
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv.h')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.h b/arch/powerpc/kvm/book3s_hv.h new file mode 100644 index 000000000000..6b7f07d9026b --- /dev/null +++ b/arch/powerpc/kvm/book3s_hv.h @@ -0,0 +1,42 @@ +// 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); |