On Tue, Jun 29, 2010 at 08:35:35AM -0400, Avi Kivity wrote: > On 06/29/2010 03:28 PM, Roedel, Joerg wrote: > > The flag indicates to kvm that it doesn't need to worry about iommu > cache coherency issues (for example, it can ignore wbinvd), so it needs > to be set. THe following code > > if (iommu_domain_has_cap(kvm->arch.iommu_domain, > IOMMU_CAP_CACHE_COHERENCY)) > kvm->arch.iommu_flags |= KVM_IOMMU_CACHE_COHERENCY; > > does this, so it looks like you need to return true for > iommu_domain_has_cap() after the change. So far only the intel iommu > supports it. Ah ok, good to know. Thanks. Joerg -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html