| Message ID | 20180423164341.15767-4-clg@kaod.org |
|---|---|
| State | RFC |
| Headers | show |
| Series | KVM: PPC: Book3S HV: add XIVE native exploitation mode | expand |
diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c index f9818d7d3381..a23ea2f2abe5 100644 --- a/arch/powerpc/kvm/book3s_xive.c +++ b/arch/powerpc/kvm/book3s_xive.c @@ -751,6 +751,9 @@ u64 kvmppc_xive_get_icp(struct kvm_vcpu *vcpu) { struct kvmppc_xive_vcpu *xc = vcpu->arch.xive_vcpu; + if (!kvmppc_xics_enabled(vcpu)) + return -EPERM; + if (!xc) return 0; @@ -767,6 +770,9 @@ int kvmppc_xive_set_icp(struct kvm_vcpu *vcpu, u64 icpval) u8 cppr, mfrr; u32 xisr; + if (!kvmppc_xics_enabled(vcpu)) + return -EPERM; + if (!xc || !xive) return -ENOENT;
We will have different KVM devices for interrupts, one for the XICS-over-XIVE mode and one for the XIVE native exploitation mode. Let's add some checks to make sure we are not mixing the interfaces in KVM. Signed-off-by: Cédric Le Goater <clg@kaod.org> --- arch/powerpc/kvm/book3s_xive.c | 6 ++++++ 1 file changed, 6 insertions(+)