diff options
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 1e9f4b45..d7f2ec6 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -789,8 +789,11 @@ static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr) /* * Userspace can only modify DPFD (default prefetch depth), * ILE (interrupt little-endian) and TC (translation control). + * On POWER8 userspace can also modify AIL (alt. interrupt loc.) */ mask = LPCR_DPFD | LPCR_ILE | LPCR_TC; + if (cpu_has_feature(CPU_FTR_ARCH_207S)) + mask |= LPCR_AIL; vc->lpcr = (vc->lpcr & ~mask) | (new_lpcr & mask); spin_unlock(&vc->lock); } @@ -2166,6 +2169,9 @@ static int kvmppc_core_init_vm_hv(struct kvm *kvm) LPCR_VPM0 | LPCR_VPM1; kvm->arch.vrma_slb_v = SLB_VSID_B_1T | (VRMA_VSID << SLB_VSID_SHIFT_1T); + /* On POWER8 turn on online bit to enable PURR/SPURR */ + if (cpu_has_feature(CPU_FTR_ARCH_207S)) + lpcr |= LPCR_ONL; } kvm->arch.lpcr = lpcr; |
