Re: [PATCH v13 05/21] KVM: pfncache: remove KVM_GUEST_USES_PFN usage

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On 19/02/2024 21:43, Sean Christopherson wrote:
On Thu, Feb 15, 2024, Paul Durrant wrote:
From: Paul Durrant <pdurrant@xxxxxxxxxx>

As noted in [1] the KVM_GUEST_USES_PFN usage flag is never set by any
callers of kvm_gpc_init(), which also makes the 'vcpu' argument redundant.

The changelog should explicitly call out that not only is KVM_GUEST_USES_PFN
unused, it's incomplete/broken (which is also partly why it's unused).  Without
that information, removing the support looks like a somewhat arbitrary decision,
versus a deliberate change to make it easier to support the gpc code.

Ok. I'll add some words to that effect.




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