diff options
Diffstat (limited to 'arch/arm64/include/asm/kvm_emulate.h')
| -rw-r--r-- | arch/arm64/include/asm/kvm_emulate.h | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h index b31b32ecbe2d..cf40d19a72f8 100644 --- a/arch/arm64/include/asm/kvm_emulate.h +++ b/arch/arm64/include/asm/kvm_emulate.h @@ -74,7 +74,7 @@ static __always_inline bool vcpu_el1_is_32bit(struct kvm_vcpu *vcpu) static inline void vcpu_reset_hcr(struct kvm_vcpu *vcpu) { vcpu->arch.hcr_el2 = HCR_GUEST_FLAGS; - if (is_kernel_in_hyp_mode()) + if (has_vhe() || has_hvhe()) vcpu->arch.hcr_el2 |= HCR_E2H; if (cpus_have_const_cap(ARM64_HAS_RAS_EXTN)) { /* route synchronous external abort exceptions to EL2 */ @@ -570,4 +570,35 @@ static inline bool vcpu_has_feature(struct kvm_vcpu *vcpu, int feature) return test_bit(feature, vcpu->arch.features); } +static __always_inline u64 kvm_get_reset_cptr_el2(struct kvm_vcpu *vcpu) +{ + u64 val; + + if (has_vhe()) { + val = (CPACR_EL1_FPEN_EL0EN | CPACR_EL1_FPEN_EL1EN | + CPACR_EL1_ZEN_EL1EN); + } else if (has_hvhe()) { + val = (CPACR_EL1_FPEN_EL0EN | CPACR_EL1_FPEN_EL1EN); + } else { + val = CPTR_NVHE_EL2_RES1; + + if (vcpu_has_sve(vcpu) && + (vcpu->arch.fp_state == FP_STATE_GUEST_OWNED)) + val |= CPTR_EL2_TZ; + if (cpus_have_final_cap(ARM64_SME)) + val &= ~CPTR_EL2_TSM; + } + + return val; +} + +static __always_inline void kvm_reset_cptr_el2(struct kvm_vcpu *vcpu) +{ + u64 val = kvm_get_reset_cptr_el2(vcpu); + + if (has_vhe() || has_hvhe()) + write_sysreg(val, cpacr_el1); + else + write_sysreg(val, cptr_el2); +} #endif /* __ARM64_KVM_EMULATE_H__ */ |