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| author | Michael Neuling <mikey@neuling.org> | 2011-11-10 16:03:20 +0000 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2011-12-26 13:28:02 +0200 |
| commit | 251da03897b383904901620835044e298061875f (patch) | |
| tree | 01e2d3ff93f67b992054a9ad182f99530bd9c65f | |
| parent | 96f38d72867bc54c312decaf8463f1e9607136da (diff) | |
| download | lwn-251da03897b383904901620835044e298061875f.tar.gz lwn-251da03897b383904901620835044e298061875f.zip | |
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: Michael Neuling <mikey@neuling.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 0cb137a9b038..336983da9e72 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -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(); |