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Commit 251da038 authored by Michael Neuling's avatar Michael Neuling Committed by Avi Kivity
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KVM: PPC: fix kvmppc_start_thread() for CONFIG_SMP=N 



Currently kvmppc_start_thread() tries to wake other SMT threads via
xics_wake_cpu().  Unfortunately xics_wake_cpu only exists when
CONFIG_SMP=Y so when compiling with CONFIG_SMP=N we get:

  arch/powerpc/kvm/built-in.o: In function `.kvmppc_start_thread':
  book3s_hv.c:(.text+0xa1e0): undefined reference to `.xics_wake_cpu'

The following should be fine since kvmppc_start_thread() shouldn't
called to start non-zero threads when SMP=N since threads_per_core=1.

Signed-off-by: default avatarMichael Neuling <mikey@neuling.org>
Signed-off-by: default avatarAlexander Graf <agraf@suse.de>
parent 96f38d72

arch/powerpc/kvm/book3s_hv.c

+1 −1
Original line number Diff line number Diff line
@@ -538,7 +538,7 @@ static void kvmppc_start_thread(struct kvm_vcpu *vcpu) 
	tpaca->kvm_hstate.napping = 0;

	vcpu->cpu = vc->pcpu;

	smp_wmb();

#ifdef CONFIG_PPC_ICP_NATIVE

#if defined(CONFIG_PPC_ICP_NATIVE) && defined(CONFIG_SMP)

	if (vcpu->arch.ptid) {

		tpaca->cpu_start = 0x80;

		wmb();