linux-kernel - Re: [RFC PATCH 1/8] KVM: Document KVM_MAP

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Message-ID: <296e1196-9572-4839-9298-002d6c52537c@intel.com>
Date: Mon, 11 Mar 2024 14:05:38 +1300
From: "Huang, Kai" <kai.huang@...el.com>
To: Isaku Yamahata <isaku.yamahata@...ux.intel.com>, Sean Christopherson
	<seanjc@...gle.com>
CC: David Matlack <dmatlack@...gle.com>, "kvm@...r.kernel.org"
	<kvm@...r.kernel.org>, Isaku Yamahata <isaku.yamahata@...el.com>,
	"federico.parola@...ito.it" <federico.parola@...ito.it>,
	"pbonzini@...hat.com" <pbonzini@...hat.com>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "isaku.yamahata@...il.com"
	<isaku.yamahata@...il.com>, "michael.roth@....com" <michael.roth@....com>
Subject: Re: [RFC PATCH 1/8] KVM: Document KVM_MAP_MEMORY ioctl


> 
>    struct kvm_memory_mapping {
> 	__u64 base_gfn;
> 	__u64 nr_pages;
> 	__u64 flags;
> 	__u64 source;
>    };

 From your next patch the @source must be 4K aligned.  If it is intended 
please document this too.

[...]

The backend may encrypt
> it.  

To me the "backend" is a little bit confusing.  It doesn't mean the 
@source, correct?  Maybe just the "underlying physical pages may be 
encrypted" etc.  But it may be only my issue.