On 14 August 2013 16:23, Marc Zyngier <marc.zyngier@xxxxxxx> wrote: > On 2013-08-14 15:22, Anup Patel wrote: >> It seems a bit unnatural to have cache cleaning is user-space. I am >> sure >> other architectures don't have such cache cleaning in user-space for >> KVM. > > Well, we have it on AArch64. Why would we blindly nuke the whole cache > if we can do the right thing, efficiently, on the right range? When exactly would userspace have to care about the cache? This patch isn't exactly clear about the circumstances. I think you'd need a really strong reason for not dealing with this in the kernel -- in general userspace KVM tools don't otherwise have to deal with cache maintenance at all. -- PMM _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
