diff options
Diffstat (limited to 'virt/kvm/arm/hyp/vgic-v3-sr.c')
| -rw-r--r-- | virt/kvm/arm/hyp/vgic-v3-sr.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/virt/kvm/arm/hyp/vgic-v3-sr.c b/virt/kvm/arm/hyp/vgic-v3-sr.c index b26ce58b012a..79e3c2d3b754 100644 --- a/virt/kvm/arm/hyp/vgic-v3-sr.c +++ b/virt/kvm/arm/hyp/vgic-v3-sr.c @@ -976,6 +976,8 @@ int __hyp_text __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu) switch (sysreg) { case SYS_ICC_IAR0_EL1: case SYS_ICC_IAR1_EL1: + if (unlikely(!is_read)) + return 0; fn = __vgic_v3_read_iar; break; case SYS_ICC_EOIR0_EL1: @@ -1026,6 +1028,8 @@ int __hyp_text __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu) break; case SYS_ICC_HPPIR0_EL1: case SYS_ICC_HPPIR1_EL1: + if (unlikely(!is_read)) + return 0; fn = __vgic_v3_read_hppir; break; case SYS_ICC_GRPEN0_EL1: @@ -1046,6 +1050,8 @@ int __hyp_text __vgic_v3_perform_cpuif_access(struct kvm_vcpu *vcpu) fn = __vgic_v3_write_dir; break; case SYS_ICC_RPR_EL1: + if (unlikely(!is_read)) + return 0; fn = __vgic_v3_read_rpr; break; case SYS_ICC_CTLR_EL1: |