diff options
Diffstat (limited to 'virt/kvm/arm/hyp/vgic-v3-sr.c')
| -rw-r--r-- | virt/kvm/arm/hyp/vgic-v3-sr.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/virt/kvm/arm/hyp/vgic-v3-sr.c b/virt/kvm/arm/hyp/vgic-v3-sr.c index 1c85a6df22d9..f031e8f088ae 100644 --- a/virt/kvm/arm/hyp/vgic-v3-sr.c +++ b/virt/kvm/arm/hyp/vgic-v3-sr.c @@ -790,6 +790,26 @@ static void __hyp_text __vgic_v3_write_apxr3(struct kvm_vcpu *vcpu, __vgic_v3_write_apxrn(vcpu, rt, 3); } +static void __hyp_text __vgic_v3_read_hppir(struct kvm_vcpu *vcpu, + u32 vmcr, int rt) +{ + u64 lr_val; + int lr, lr_grp, grp; + + grp = __vgic_v3_get_group(vcpu); + + lr = __vgic_v3_highest_priority_lr(vcpu, vmcr, &lr_val); + if (lr == -1) + goto spurious; + + lr_grp = !!(lr_val & ICH_LR_GROUP); + if (lr_grp != grp) + lr_val = ICC_IAR1_EL1_SPURIOUS; + +spurious: + vcpu_set_reg(vcpu, rt, lr_val & ICH_LR_VIRTUAL_ID_MASK); +} + int __hyp_text __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu) { int rt; @@ -854,6 +874,9 @@ int __hyp_text __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu) else fn = __vgic_v3_write_apxr3; break; + case SYS_ICC_HPPIR1_EL1: + fn = __vgic_v3_read_hppir; + break; default: return 0; } |