diff options
Diffstat (limited to 'arch/powerpc/kvm/powerpc.c')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 22f6fa2982f2..a4cf4b47e232 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -42,6 +42,38 @@ int kvm_arch_vcpu_runnable(struct kvm_vcpu *v) !!(v->arch.pending_exceptions); } +int kvmppc_kvm_pv(struct kvm_vcpu *vcpu) +{ + int nr = kvmppc_get_gpr(vcpu, 11); + int r; + unsigned long __maybe_unused param1 = kvmppc_get_gpr(vcpu, 3); + unsigned long __maybe_unused param2 = kvmppc_get_gpr(vcpu, 4); + unsigned long __maybe_unused param3 = kvmppc_get_gpr(vcpu, 5); + unsigned long __maybe_unused param4 = kvmppc_get_gpr(vcpu, 6); + unsigned long r2 = 0; + + if (!(vcpu->arch.shared->msr & MSR_SF)) { + /* 32 bit mode */ + param1 &= 0xffffffff; + param2 &= 0xffffffff; + param3 &= 0xffffffff; + param4 &= 0xffffffff; + } + + switch (nr) { + case HC_VENDOR_KVM | KVM_HC_FEATURES: + r = HC_EV_SUCCESS; + + /* Second return value is in r4 */ + kvmppc_set_gpr(vcpu, 4, r2); + break; + default: + r = HC_EV_UNIMPLEMENTED; + break; + } + + return r; +} int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu) { |