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Date:   Thu, 21 Oct 2021 17:22:47 +0200
From:   Paolo Bonzini <>
To:     Michael Roth <>,
        Mingwei Zhang <>
Cc:, kvm <>,
        LKML <>,,
        Nathan Tempelman <>,
        Marc Orr <>,
        Steve Rutherford <>,
        Sean Christopherson <>,
        Brijesh Singh <>,
        Tom Lendacky <>,
        Varad Gautam <>,
        Shuah Khan <>,
        Vitaly Kuznetsov <>,
        David Woodhouse <>,
        Ricardo Koller <>,
        Jim Mattson <>,
        Wanpeng Li <>,
        Joerg Roedel <>,
        Thomas Gleixner <>,
        Ingo Molnar <>, Borislav Petkov <>,
        "H . Peter Anvin" <>
Subject: Re: [RFC 02/16] KVM: selftests: add hooks for managing encrypted
 guest memory

On 21/10/21 05:37, Michael Roth wrote:
>> Do we have to make a copy for the sparsebit? Why not just return the
>> pointer? By looking at your subsequent patches, I find that this data
>> structure seems to be just read-only?
> Yes, it's only intended to be used for read access. But I'll if I can
> enforce that without the need to use a copy.

Return it as a const pointer?


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