diff options
| -rw-r--r-- | arch/powerpc/kvm/book3s.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_emulate.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kvm/book3s_pr.c | 13 |
3 files changed, 19 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/book3s.h b/arch/powerpc/kvm/book3s.h index 4ad5e28..14ef035 100644 --- a/arch/powerpc/kvm/book3s.h +++ b/arch/powerpc/kvm/book3s.h @@ -31,4 +31,10 @@ extern int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu, extern int kvmppc_book3s_init_pr(void); extern void kvmppc_book3s_exit_pr(void); +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM +extern void kvmppc_emulate_tabort(struct kvm_vcpu *vcpu, int ra_val); +#else +static inline void kvmppc_emulate_tabort(struct kvm_vcpu *vcpu, int ra_val) {} +#endif + #endif diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c index 34f910e..67d0fb40 100644 --- a/arch/powerpc/kvm/book3s_emulate.c +++ b/arch/powerpc/kvm/book3s_emulate.c @@ -199,7 +199,7 @@ static void kvmppc_emulate_trchkpt(struct kvm_vcpu *vcpu) } /* emulate tabort. at guest privilege state */ -static void kvmppc_emulate_tabort(struct kvm_vcpu *vcpu, int ra_val) +void kvmppc_emulate_tabort(struct kvm_vcpu *vcpu, int ra_val) { /* currently we only emulate tabort. but no emulation of other * tabort variants since there is no kernel usage of them at diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index a275f8b..ad0a2ee 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -446,12 +446,23 @@ static void kvm_set_spte_hva_pr(struct kvm *kvm, unsigned long hva, pte_t pte) static void kvmppc_set_msr_pr(struct kvm_vcpu *vcpu, u64 msr) { - ulong old_msr = kvmppc_get_msr(vcpu); + ulong old_msr; #ifdef EXIT_DEBUG printk(KERN_INFO "KVM: Set MSR to 0x%llx\n", msr); #endif +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM + /* We should never target guest MSR to TS=10 && PR=0, + * since we always fail transaction for guest privilege + * state. + */ + if (!(msr & MSR_PR) && MSR_TM_TRANSACTIONAL(msr)) + kvmppc_emulate_tabort(vcpu, + TM_CAUSE_KVM_FAC_UNAV | TM_CAUSE_PERSISTENT); +#endif + + old_msr = kvmppc_get_msr(vcpu); msr &= to_book3s(vcpu)->msr_mask; kvmppc_set_msr_fast(vcpu, msr); kvmppc_recalc_shadow_msr(vcpu); |
