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KVM: PPC: Rework wqp conditional code 

On PowerPC, we sometimes use a waitqueue per core, not per thread,
so we can't always use the vcpu internal waitqueue.

This code has been generalized by Christoffer Dall recently, but
unfortunately broke compilation for PowerPC. At the time the helper
function is defined, struct kvm_vcpu is not declared yet, so we can't
dereference it.

This patch moves all logic into the generic inline function, at which
time we have all information necessary.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
hifive-unleashed-5.1
Alexander Graf 2012-03-13 22:35:01 +01:00 committed by Avi Kivity
parent b6d33834bd
commit 2246f8b563
2 changed files with 5 additions and 7 deletions
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6
arch/powerpc/include/asm/kvm_host.h
View File

@ -498,10 +498,6 @@ struct kvm_vcpu_arch {
#define KVM_MMIO_REG_QPR 0x0040
#define KVM_MMIO_REG_FQPR 0x0060
#define __KVM_HAVE_ARCH_VCPU_GET_WQ 1
static inline wait_queue_head *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu)
{
return vcpu->arch.wqp;
}
#define __KVM_HAVE_ARCH_WQP
#endif /* __POWERPC_KVM_HOST_H__ */

6
include/linux/kvm_host.h
View File

@ -524,12 +524,14 @@ static inline void kvm_arch_free_vm(struct kvm *kvm)
}
#endif
#ifndef __KVM_HAVE_ARCH_VCPU_GET_WQ
static inline wait_queue_head_t *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu)
{
#ifdef __KVM_HAVE_ARCH_WQP
return vcpu->arch.wqp;
#else
return &vcpu->wq;
}
#endif
}
int kvm_arch_init_vm(struct kvm *kvm, unsigned long type);
void kvm_arch_destroy_vm(struct kvm *kvm);