diff options
Diffstat (limited to 'arch/arm64/kvm/hyp/nvhe/switch.c')
| -rw-r--r-- | arch/arm64/kvm/hyp/nvhe/switch.c | 28 |
1 files changed, 16 insertions, 12 deletions
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c index 77791495c995..0a6271052def 100644 --- a/arch/arm64/kvm/hyp/nvhe/switch.c +++ b/arch/arm64/kvm/hyp/nvhe/switch.c @@ -44,13 +44,24 @@ static void __activate_traps(struct kvm_vcpu *vcpu) __activate_traps_common(vcpu); val = vcpu->arch.cptr_el2; - val |= CPTR_EL2_TTA | CPTR_EL2_TAM; + val |= CPTR_EL2_TAM; /* Same bit irrespective of E2H */ + val |= has_hvhe() ? CPACR_EL1_TTA : CPTR_EL2_TTA; + if (cpus_have_final_cap(ARM64_SME)) { + if (has_hvhe()) + val &= ~(CPACR_EL1_SMEN_EL1EN | CPACR_EL1_SMEN_EL0EN); + else + val |= CPTR_EL2_TSM; + } + if (!guest_owns_fp_regs(vcpu)) { - val |= CPTR_EL2_TFP | CPTR_EL2_TZ; + if (has_hvhe()) + val &= ~(CPACR_EL1_FPEN_EL0EN | CPACR_EL1_FPEN_EL1EN | + CPACR_EL1_ZEN_EL0EN | CPACR_EL1_ZEN_EL1EN); + else + val |= CPTR_EL2_TFP | CPTR_EL2_TZ; + __activate_traps_fpsimd32(vcpu); } - if (cpus_have_final_cap(ARM64_SME)) - val |= CPTR_EL2_TSM; write_sysreg(val, cptr_el2); write_sysreg(__this_cpu_read(kvm_hyp_vector), vbar_el2); @@ -73,7 +84,6 @@ static void __activate_traps(struct kvm_vcpu *vcpu) static void __deactivate_traps(struct kvm_vcpu *vcpu) { extern char __kvm_hyp_host_vector[]; - u64 cptr; ___deactivate_traps(vcpu); @@ -98,13 +108,7 @@ static void __deactivate_traps(struct kvm_vcpu *vcpu) write_sysreg(this_cpu_ptr(&kvm_init_params)->hcr_el2, hcr_el2); - cptr = CPTR_EL2_DEFAULT; - if (vcpu_has_sve(vcpu) && (vcpu->arch.fp_state == FP_STATE_GUEST_OWNED)) - cptr |= CPTR_EL2_TZ; - if (cpus_have_final_cap(ARM64_SME)) - cptr &= ~CPTR_EL2_TSM; - - write_sysreg(cptr, cptr_el2); + kvm_reset_cptr_el2(vcpu); write_sysreg(__kvm_hyp_host_vector, vbar_el2); } |