diff options
Diffstat (limited to 'arch/arm64/kvm')
| -rw-r--r-- | arch/arm64/kvm/hyp/switch.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c index 8b81cc6f3717..731519cfee8e 100644 --- a/arch/arm64/kvm/hyp/switch.c +++ b/arch/arm64/kvm/hyp/switch.c @@ -311,9 +311,21 @@ again: !kvm_vcpu_dabt_isextabt(vcpu) && !kvm_vcpu_dabt_iss1tw(vcpu); - if (valid && __vgic_v2_perform_cpuif_access(vcpu)) { - __skip_instr(vcpu); - goto again; + if (valid) { + int ret = __vgic_v2_perform_cpuif_access(vcpu); + + if (ret == 1) { + __skip_instr(vcpu); + goto again; + } + + if (ret == -1) { + /* Promote an illegal access to an SError */ + __skip_instr(vcpu); + exit_code = ARM_EXCEPTION_EL1_SERROR; + } + + /* 0 falls through to be handler out of EL2 */ } } |