diff options
Diffstat (limited to 'arch/arm64/kvm/hyp/nvhe/switch.c')
-rw-r--r-- | arch/arm64/kvm/hyp/nvhe/switch.c | 73 |
1 files changed, 13 insertions, 60 deletions
diff --git a/arch/arm64/kvm/hyp/nvhe/switch.c b/arch/arm64/kvm/hyp/nvhe/switch.c index 7d2ba6ef0261..0e752b515d0f 100644 --- a/arch/arm64/kvm/hyp/nvhe/switch.c +++ b/arch/arm64/kvm/hyp/nvhe/switch.c @@ -33,66 +33,19 @@ DEFINE_PER_CPU(struct kvm_host_data, kvm_host_data); DEFINE_PER_CPU(struct kvm_cpu_context, kvm_hyp_ctxt); DEFINE_PER_CPU(unsigned long, kvm_hyp_vector); -extern void kvm_nvhe_prepare_backtrace(unsigned long fp, unsigned long pc); - -static void __activate_cptr_traps(struct kvm_vcpu *vcpu) -{ - u64 val = CPTR_EL2_TAM; /* Same bit irrespective of E2H */ - - if (!guest_owns_fp_regs()) - __activate_traps_fpsimd32(vcpu); - - if (has_hvhe()) { - val |= CPACR_EL1_TTA; - - if (guest_owns_fp_regs()) { - val |= CPACR_EL1_FPEN; - if (vcpu_has_sve(vcpu)) - val |= CPACR_EL1_ZEN; - } - - write_sysreg(val, cpacr_el1); - } else { - val |= CPTR_EL2_TTA | CPTR_NVHE_EL2_RES1; - - /* - * Always trap SME since it's not supported in KVM. - * TSM is RES1 if SME isn't implemented. - */ - val |= CPTR_EL2_TSM; - - if (!vcpu_has_sve(vcpu) || !guest_owns_fp_regs()) - val |= CPTR_EL2_TZ; - - if (!guest_owns_fp_regs()) - val |= CPTR_EL2_TFP; +struct fgt_masks hfgrtr_masks; +struct fgt_masks hfgwtr_masks; +struct fgt_masks hfgitr_masks; +struct fgt_masks hdfgrtr_masks; +struct fgt_masks hdfgwtr_masks; +struct fgt_masks hafgrtr_masks; +struct fgt_masks hfgrtr2_masks; +struct fgt_masks hfgwtr2_masks; +struct fgt_masks hfgitr2_masks; +struct fgt_masks hdfgrtr2_masks; +struct fgt_masks hdfgwtr2_masks; - write_sysreg(val, cptr_el2); - } -} - -static void __deactivate_cptr_traps(struct kvm_vcpu *vcpu) -{ - if (has_hvhe()) { - u64 val = CPACR_EL1_FPEN; - - if (cpus_have_final_cap(ARM64_SVE)) - val |= CPACR_EL1_ZEN; - if (cpus_have_final_cap(ARM64_SME)) - val |= CPACR_EL1_SMEN; - - write_sysreg(val, cpacr_el1); - } else { - u64 val = CPTR_NVHE_EL2_RES1; - - if (!cpus_have_final_cap(ARM64_SVE)) - val |= CPTR_EL2_TZ; - if (!cpus_have_final_cap(ARM64_SME)) - val |= CPTR_EL2_TSM; - - write_sysreg(val, cptr_el2); - } -} +extern void kvm_nvhe_prepare_backtrace(unsigned long fp, unsigned long pc); static void __activate_traps(struct kvm_vcpu *vcpu) { @@ -142,7 +95,7 @@ static void __deactivate_traps(struct kvm_vcpu *vcpu) __deactivate_traps_common(vcpu); - write_sysreg(this_cpu_ptr(&kvm_init_params)->hcr_el2, hcr_el2); + write_sysreg_hcr(this_cpu_ptr(&kvm_init_params)->hcr_el2); __deactivate_cptr_traps(vcpu); write_sysreg(__kvm_hyp_host_vector, vbar_el2); |