diff options
Diffstat (limited to 'arch/powerpc/kvm/powerpc.c')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 13bc798a4441..a8000ce562b0 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -95,6 +95,31 @@ int kvmppc_kvm_pv(struct kvm_vcpu *vcpu) return r; } +int kvmppc_sanity_check(struct kvm_vcpu *vcpu) +{ + int r = false; + + /* We have to know what CPU to virtualize */ + if (!vcpu->arch.pvr) + goto out; + + /* PAPR only works with book3s_64 */ + if ((vcpu->arch.cpu_type != KVM_CPU_3S_64) && vcpu->arch.papr_enabled) + goto out; + +#ifdef CONFIG_KVM_BOOK3S_64_HV + /* HV KVM can only do PAPR mode for now */ + if (!vcpu->arch.papr_enabled) + goto out; +#endif + + r = true; + +out: + vcpu->arch.sane = r; + return r ? 0 : -EINVAL; +} + int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu) { enum emulation_result er; @@ -582,6 +607,9 @@ static int kvm_vcpu_ioctl_enable_cap(struct kvm_vcpu *vcpu, break; } + if (!r) + r = kvmppc_sanity_check(vcpu); + return r; } |