diff options
Diffstat (limited to 'arch/x86/kernel/kvm.c')
| -rw-r--r-- | arch/x86/kernel/kvm.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c index eba6485a59a392..088f4cac97e273 100644 --- a/arch/x86/kernel/kvm.c +++ b/arch/x86/kernel/kvm.c @@ -375,6 +375,14 @@ static void kvm_guest_cpu_init(void) wrmsrl(MSR_KVM_PV_EOI_EN, pa); } +#ifdef CONFIG_PARAVIRT_SCHED + if (pv_sched_enabled()) { + unsigned long pa = pv_sched_pa() | KVM_MSR_ENABLED; + + wrmsrl(MSR_KVM_PV_SCHED, pa); + } +#endif + if (has_steal_clock) kvm_register_steal_time(); } @@ -744,6 +752,14 @@ static void __init kvm_guest_init(void) alloc_intr_gate(HYPERVISOR_CALLBACK_VECTOR, asm_sysvec_kvm_asyncpf_interrupt); } +#ifdef CONFIG_PARAVIRT_SCHED + if (kvm_para_has_feature(KVM_FEATURE_PV_SCHED)) { + pr_info("KVM host has PV_SCHED!\n"); + pv_sched_enable(); + } else + pr_info("KVM host does not support PV_SCHED!\n"); +#endif + #ifdef CONFIG_SMP if (pv_tlb_flush_supported()) { pv_ops.mmu.flush_tlb_multi = kvm_flush_tlb_multi; |