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SubjectRe: [RFC PATCH v3 14/59] KVM: x86: Add vm_type to differentiate legacy VMs from protected VMs
On Thu, Nov 25, 2021, Thomas Gleixner wrote:
> On Wed, Nov 24 2021 at 16:19, isaku yamahata wrote:
> > From: Sean Christopherson <sean.j.christopherson@intel.com>
> >
> > Add a capability to effectively allow userspace to query what VM types
> > are supported by KVM.
>
> I really don't see why this has to be named legacy. There are enough
> reasonable use cases which are perfectly fine using the non-encrypted
> muck. Just because there is a new hyped feature does not make anything
> else legacy.

Yeah, this was brought up in the past. The current proposal is to use
KVM_X86_DEFAULT_VM[1], though at one point the plan was to use a generic
KVM_VM_TYPE_DEFAULT for all architectures[2], not sure what happened to that idea.

[1] https://lore.kernel.org/all/YY6aqVkHNEfEp990@google.com/
[2] https://lore.kernel.org/all/YQsjQ5aJokV1HZ8N@google.com/

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