diff options
Diffstat (limited to 'target/i386/kvm.c')
| -rw-r--r-- | target/i386/kvm.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/target/i386/kvm.c b/target/i386/kvm.c index 302f420064..4e62b5c39b 100644 --- a/target/i386/kvm.c +++ b/target/i386/kvm.c @@ -608,7 +608,8 @@ static bool hyperv_enabled(X86CPU *cpu) cpu->hyperv_synic || cpu->hyperv_stimer || cpu->hyperv_reenlightenment || - cpu->hyperv_tlbflush); + cpu->hyperv_tlbflush || + cpu->hyperv_ipi); } static int kvm_arch_set_tsc_khz(CPUState *cs) @@ -888,6 +889,17 @@ int kvm_arch_init_vcpu(CPUState *cs) c->eax |= HV_REMOTE_TLB_FLUSH_RECOMMENDED; c->eax |= HV_EX_PROCESSOR_MASKS_RECOMMENDED; } + if (cpu->hyperv_ipi) { + if (kvm_check_extension(cs->kvm_state, + KVM_CAP_HYPERV_SEND_IPI) <= 0) { + fprintf(stderr, "Hyper-V IPI send support " + "(requested by 'hv-ipi' cpu flag) " + " is not supported by kernel\n"); + return -ENOSYS; + } + c->eax |= HV_CLUSTER_IPI_RECOMMENDED; + c->eax |= HV_EX_PROCESSOR_MASKS_RECOMMENDED; + } c->ebx = cpu->hyperv_spinlock_attempts; |