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KVM: PPC: Expose SYNC cap based on mmu notifiers

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Semantically, the "SYNC" cap means that we have mmu notifiers available.
Express this in our #ifdef'ery around the feature, so that we can be sure
we don't miss out on ppc targets when they get their implementation.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2012-08-07 10:24:14 +02:00
parent 97c9505984
commit f4800b1f4d
1 changed files with 9 additions and 3 deletions
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12
arch/powerpc/kvm/powerpc.c
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@ -264,10 +264,16 @@ int kvm_dev_ioctl_check_extension(long ext)
if (cpu_has_feature(CPU_FTR_ARCH_201))
r = 2;
break;
case KVM_CAP_SYNC_MMU:
r = cpu_has_feature(CPU_FTR_ARCH_206) ? 1 : 0;
break;
#endif
case KVM_CAP_SYNC_MMU:
#ifdef CONFIG_KVM_BOOK3S_64_HV
r = cpu_has_feature(CPU_FTR_ARCH_206) ? 1 : 0;
#elif defined(KVM_ARCH_WANT_MMU_NOTIFIER)
r = 1;
#else
r = 0;
#endif
break;
case KVM_CAP_NR_VCPUS:
/*
* Recommending a number of CPUs is somewhat arbitrary; we