diff options
| -rw-r--r-- | target/i386/kvm/xen-emu.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/target/i386/kvm/xen-emu.c b/target/i386/kvm/xen-emu.c index 4ed833656f..ebea27caf6 100644 --- a/target/i386/kvm/xen-emu.c +++ b/target/i386/kvm/xen-emu.c @@ -234,6 +234,19 @@ static bool kvm_xen_hcall_sched_op(struct kvm_xen_exit *exit, X86CPU *cpu, err = schedop_shutdown(cs, arg); break; + case SCHEDOP_poll: + /* + * Linux will panic if this doesn't work. Just yield; it's not + * worth overthinking it because with event channel handling + * in KVM, the kernel will intercept this and it will never + * reach QEMU anyway. The semantics of the hypercall explicltly + * permit spurious wakeups. + */ + case SCHEDOP_yield: + sched_yield(); + err = 0; + break; + default: return false; } |