Avi Kivity wrote: > Small, reviewable, posted patches are definitely the best way forward. Very well, will go that direction. > >> - case KVM_CHECK_EXTENSION: { >> - int ext = (long)argp; >> - >> - switch (ext) { >> - case KVM_CAP_IRQCHIP: >> - case KVM_CAP_HLT: >> - case KVM_CAP_MMU_SHADOW_CACHE_CONTROL: >> - r = 1; >> - break; >> - default: >> - r = 0; >> - break; >> - } >> - break; >> - } >> > > CHECK_EXTENSION is hopefully a generic mechanism (even if the some of > the actual extensions are not). So there should be a switch in common > code for the common extensions, and the default: target should call > kvm_arch_check_extension() for further processing. Agreed, the call itself should be generic. But the result is arch dependent. Will fix it. > >> - case KVM_GET_VCPU_MMAP_SIZE: >> - r = -EINVAL; >> - if (arg) >> - goto out; >> - r = 2 * PAGE_SIZE; >> - break; >> > > I would think this is generic too? Isn't s390 interested in passing > information to userspace via a mmap()ed region? Yes, same as above: call is generic - result value not. Will fix this too. > Note that mmio data is passed via that region. Yes, I've seen that. Thanks for the heads-up.
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