diff options
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index f8975c620f41..709cf1fd4cf4 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -401,8 +401,11 @@ static int kvmppc_set_arch_compat(struct kvm_vcpu *vcpu, u32 arch_compat) spin_lock(&vc->lock); vc->arch_compat = arch_compat; - /* Set all PCR bits for which guest_pcr_bit <= bit < host_pcr_bit */ - vc->pcr = host_pcr_bit - guest_pcr_bit; + /* + * Set all PCR bits for which guest_pcr_bit <= bit < host_pcr_bit + * Also set all reserved PCR bits + */ + vc->pcr = (host_pcr_bit - guest_pcr_bit) | PCR_MASK; spin_unlock(&vc->lock); return 0; @@ -3410,7 +3413,7 @@ static int kvmhv_load_hv_regs_and_go(struct kvm_vcpu *vcpu, u64 time_limit, } if (vc->pcr) - mtspr(SPRN_PCR, vc->pcr); + mtspr(SPRN_PCR, vc->pcr | PCR_MASK); mtspr(SPRN_DPDES, vc->dpdes); mtspr(SPRN_VTB, vc->vtb); @@ -3490,7 +3493,7 @@ static int kvmhv_load_hv_regs_and_go(struct kvm_vcpu *vcpu, u64 time_limit, vc->vtb = mfspr(SPRN_VTB); mtspr(SPRN_DPDES, 0); if (vc->pcr) - mtspr(SPRN_PCR, 0); + mtspr(SPRN_PCR, PCR_MASK); if (vc->tb_offset_applied) { u64 new_tb = mftb() - vc->tb_offset_applied; @@ -5474,6 +5477,12 @@ static int kvmppc_radix_possible(void) static int kvmppc_book3s_init_hv(void) { int r; + + if (!tlbie_capable) { + pr_err("KVM-HV: Host does not support TLBIE\n"); + return -ENODEV; + } + /* * FIXME!! Do we need to check on all cpus ? */ |
