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Diffstat (limited to 'arch/arm64/kvm/hyp/nvhe/switch.c')
-rw-r--r--arch/arm64/kvm/hyp/nvhe/switch.c73
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);