diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kvm/book3s_emulate.c | 21 |
1 files changed, 19 insertions, 2 deletions
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c index 68d68983948e..2eb457bc7b6e 100644 --- a/arch/powerpc/kvm/book3s_emulate.c +++ b/arch/powerpc/kvm/book3s_emulate.c @@ -117,11 +117,28 @@ int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu, case 19: switch (get_xop(inst)) { case OP_19_XOP_RFID: - case OP_19_XOP_RFI: + case OP_19_XOP_RFI: { + unsigned long srr1 = kvmppc_get_srr1(vcpu); +#ifdef CONFIG_PPC_TRANSACTIONAL_MEM + unsigned long cur_msr = kvmppc_get_msr(vcpu); + + /* + * add rules to fit in ISA specification regarding TM + * state transistion in TM disable/Suspended state, + * and target TM state is TM inactive(00) state. (the + * change should be suppressed). + */ + if (((cur_msr & MSR_TM) == 0) && + ((srr1 & MSR_TM) == 0) && + MSR_TM_SUSPENDED(cur_msr) && + !MSR_TM_ACTIVE(srr1)) + srr1 |= MSR_TS_S; +#endif kvmppc_set_pc(vcpu, kvmppc_get_srr0(vcpu)); - kvmppc_set_msr(vcpu, kvmppc_get_srr1(vcpu)); + kvmppc_set_msr(vcpu, srr1); *advance = 0; break; + } default: emulated = EMULATE_FAIL; |