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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/arch/powerpc/kvm/book3s_hv.h
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// SPDX-License-Identifier: GPL-2.0-only

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/*

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 * Privileged (non-hypervisor) host registers to save.

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 */

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#include "asm/guest-state-buffer.h"

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struct p9_host_os_sprs {

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	unsigned long iamr;

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	unsigned long amr;

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	unsigned int pmc1;

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	unsigned int pmc2;

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	unsigned int pmc3;

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	unsigned int pmc4;

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	unsigned int pmc5;

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	unsigned int pmc6;

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	unsigned long mmcr0;

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	unsigned long mmcr1;

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	unsigned long mmcr2;

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	unsigned long mmcr3;

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	unsigned long mmcra;

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	unsigned long siar;

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	unsigned long sier1;

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	unsigned long sier2;

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	unsigned long sier3;

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	unsigned long sdar;

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};

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static inline bool nesting_enabled(struct kvm *kvm)

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{

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	return kvm->arch.nested_enable && kvm_is_radix(kvm);

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}

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bool load_vcpu_state(struct kvm_vcpu *vcpu,

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			   struct p9_host_os_sprs *host_os_sprs);

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void store_vcpu_state(struct kvm_vcpu *vcpu);

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void save_p9_host_os_sprs(struct p9_host_os_sprs *host_os_sprs);

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void restore_p9_host_os_sprs(struct kvm_vcpu *vcpu,

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				    struct p9_host_os_sprs *host_os_sprs);

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void switch_pmu_to_guest(struct kvm_vcpu *vcpu,

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			    struct p9_host_os_sprs *host_os_sprs);

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void switch_pmu_to_host(struct kvm_vcpu *vcpu,

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			    struct p9_host_os_sprs *host_os_sprs);

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#ifdef CONFIG_KVM_BOOK3S_HV_P9_TIMING

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void accumulate_time(struct kvm_vcpu *vcpu, struct kvmhv_tb_accumulator *next);

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#define start_timing(vcpu, next) accumulate_time(vcpu, next)

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#define end_timing(vcpu) accumulate_time(vcpu, NULL)

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#else

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#define accumulate_time(vcpu, next) do {} while (0)

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#define start_timing(vcpu, next) do {} while (0)

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#define end_timing(vcpu) do {} while (0)

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#endif

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static inline void __kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 val)

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{

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	vcpu->arch.shregs.msr = val;

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	kvmhv_nestedv2_mark_dirty(vcpu, KVMPPC_GSID_MSR);

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}

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static inline u64 __kvmppc_get_msr_hv(struct kvm_vcpu *vcpu)

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{

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	WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, KVMPPC_GSID_MSR) < 0);

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	return vcpu->arch.shregs.msr;

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}

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#define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_SET(reg, size, iden)		\

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static inline void kvmppc_set_##reg ##_hv(struct kvm_vcpu *vcpu, u##size val)	\

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{									\

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	vcpu->arch.reg = val;						\

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	kvmhv_nestedv2_mark_dirty(vcpu, iden);				\

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}

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#define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_GET(reg, size, iden)		\

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static inline u##size kvmppc_get_##reg ##_hv(struct kvm_vcpu *vcpu)	\

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{									\

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	kvmhv_nestedv2_cached_reload(vcpu, iden);			\

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	return vcpu->arch.reg;						\

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}

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#define KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(reg, size, iden)			\

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	KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_SET(reg, size, iden)		\

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	KVMPPC_BOOK3S_HV_VCPU_ACCESSOR_GET(reg, size, iden)		\

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#define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_SET(reg, size, iden)	\

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static inline void kvmppc_set_##reg ##_hv(struct kvm_vcpu *vcpu, int i, u##size val)	\

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{									\

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	vcpu->arch.reg[i] = val;					\

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	kvmhv_nestedv2_mark_dirty(vcpu, iden(i));			\

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}

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#define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_GET(reg, size, iden)	\

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static inline u##size kvmppc_get_##reg ##_hv(struct kvm_vcpu *vcpu, int i)	\

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{									\

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	WARN_ON(kvmhv_nestedv2_cached_reload(vcpu, iden(i)) < 0);	\

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	return vcpu->arch.reg[i];					\

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}

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#define KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(reg, size, iden)		\

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	KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_SET(reg, size, iden)	\

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	KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR_GET(reg, size, iden)	\

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(mmcra, 64, KVMPPC_GSID_MMCRA)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(hfscr, 64, KVMPPC_GSID_HFSCR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(fscr, 64, KVMPPC_GSID_FSCR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dscr, 64, KVMPPC_GSID_DSCR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(purr, 64, KVMPPC_GSID_PURR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(spurr, 64, KVMPPC_GSID_SPURR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(amr, 64, KVMPPC_GSID_AMR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(uamor, 64, KVMPPC_GSID_UAMOR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(siar, 64, KVMPPC_GSID_SIAR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(sdar, 64, KVMPPC_GSID_SDAR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(iamr, 64, KVMPPC_GSID_IAMR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr0, 64, KVMPPC_GSID_DAWR0)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawr1, 64, KVMPPC_GSID_DAWR1)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx0, 64, KVMPPC_GSID_DAWRX0)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dawrx1, 64, KVMPPC_GSID_DAWRX1)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(dexcr, 64, KVMPPC_GSID_DEXCR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(hashkeyr, 64, KVMPPC_GSID_HASHKEYR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(hashpkeyr, 64, KVMPPC_GSID_HASHPKEYR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ciabr, 64, KVMPPC_GSID_CIABR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(wort, 64, KVMPPC_GSID_WORT)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ppr, 64, KVMPPC_GSID_PPR)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(ctrl, 64, KVMPPC_GSID_CTRL);

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KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(mmcr, 64, KVMPPC_GSID_MMCR)

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KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(sier, 64, KVMPPC_GSID_SIER)

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KVMPPC_BOOK3S_HV_VCPU_ARRAY_ACCESSOR(pmc, 32, KVMPPC_GSID_PMC)

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KVMPPC_BOOK3S_HV_VCPU_ACCESSOR(pspb, 32, KVMPPC_GSID_PSPB)

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