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| author | Paul Mackerras <paulus@samba.org> | 2011-12-12 12:24:48 +0000 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2012-03-05 14:52:34 +0200 |
| commit | 4e72dbe13528394a413889d73e5025dbdf6cab70 (patch) | |
| tree | e7aec9cbd0f0a141af136e76df240ee5673b287f /arch/powerpc/kvm | |
| parent | befdc0a65afd17181392eff3d43c63407f266a9f (diff) | |
| download | op-kernel-dev-4e72dbe13528394a413889d73e5025dbdf6cab70.zip op-kernel-dev-4e72dbe13528394a413889d73e5025dbdf6cab70.tar.gz | |
KVM: PPC: Make wakeups work again for Book3S HV guests
When commit f43fdc15fa ("KVM: PPC: booke: Improve timer register
emulation") factored out some code in arch/powerpc/kvm/powerpc.c
into a new helper function, kvm_vcpu_kick(), an error crept in
which causes Book3s HV guest vcpus to stall. This fixes it.
On POWER7 machines, guest vcpus are grouped together into virtual
CPU cores that share a single waitqueue, so it's important to use
vcpu->arch.wqp rather than &vcpu->wq.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'arch/powerpc/kvm')
| -rw-r--r-- | arch/powerpc/kvm/powerpc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index e1ef4d6..4f85ac3 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -562,7 +562,7 @@ void kvm_vcpu_kick(struct kvm_vcpu *vcpu) int cpu = vcpu->cpu; me = get_cpu(); - if (waitqueue_active(&vcpu->wq)) { + if (waitqueue_active(vcpu->arch.wqp)) { wake_up_interruptible(vcpu->arch.wqp); vcpu->stat.halt_wakeup++; } else if (cpu != me && cpu != -1) { |
