linux-kernel - Re: [PATCH v2 04/10] KVM: x86/mmu: Make __kvm_mmu_do_page

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Date: Tue, 16 Apr 2024 14:40:39 +0000
From: "Edgecombe, Rick P" <rick.p.edgecombe@...el.com>
To: "kvm@...r.kernel.org" <kvm@...r.kernel.org>, "Yamahata, Isaku"
	<isaku.yamahata@...el.com>
CC: "seanjc@...gle.com" <seanjc@...gle.com>, "Huang, Kai"
	<kai.huang@...el.com>, "federico.parola@...ito.it"
	<federico.parola@...ito.it>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "isaku.yamahata@...il.com"
	<isaku.yamahata@...il.com>, "dmatlack@...gle.com" <dmatlack@...gle.com>,
	"michael.roth@....com" <michael.roth@....com>, "pbonzini@...hat.com"
	<pbonzini@...hat.com>
Subject: Re: [PATCH v2 04/10] KVM: x86/mmu: Make __kvm_mmu_do_page_fault()
 return mapped level

On Wed, 2024-04-10 at 15:07 -0700, isaku.yamahata@...el.com wrote:
> From: Isaku Yamahata <isaku.yamahata@...el.com>
> 
> The guest memory population logic will need to know what page size or level
> (4K, 2M, ...) is mapped.

TDX needs this, but do the normal VM users need to have it fixed to 4k? Is it
actually good?

> 
> Signed-off-by: Isaku Yamahata <isaku.yamahata@...el.com>