Re: [PATCH v4 04/12] KVM: Add capability to discover KVM_GMEM_NO_DIRECT_MAP support

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On Tue, 2025-02-25 at 16:55 +0000, David Hildenbrand wrote:
> On 21.02.25 17:07, Patrick Roy wrote:
>> Add a capability to let userspace discover whether guest_memfd supports
>> removing its folios from the direct map. Support depends on guest_memfd
>> itself being supported, but also on whether KVM can manipulate the
>> direct map at page granularity at all (possible most of the time, just
>> arm64 is a notable outlier where its impossible if the direct map has
>> been setup using hugepages, as arm64 cannot break these apart due to
>> break-before-make semantics).
>>
>> Signed-off-by: Patrick Roy <roypat@xxxxxxxxxxxx>
>> ---
> 
> Not sure how KVM folks handle that, but I suspect we would just want to
> squash that into the previous commit,
> 
> -- 
> Cheers,
> 
> David / dhildenb
> 

Ah, yeah, I just had a look at the commit history in this file and
indeed these have seem to usually be squashed. Will do so too, thanks!

Best, 
Patrick




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