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Date:   Mon, 2 May 2022 16:40:31 +0300
From:   "Kirill A. Shutemov" <kirill@shutemov.name>
To:     Borislav Petkov <bp@alien8.de>
Cc:     "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
        Andy Lutomirski <luto@kernel.org>,
        Sean Christopherson <seanjc@google.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Joerg Roedel <jroedel@suse.de>,
        Ard Biesheuvel <ardb@kernel.org>,
        Andi Kleen <ak@linux.intel.com>,
        Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@linux.intel.com>,
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        Vlastimil Babka <vbabka@suse.cz>,
        Tom Lendacky <thomas.lendacky@amd.com>,
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        Peter Zijlstra <peterz@infradead.org>,
        Paolo Bonzini <pbonzini@redhat.com>,
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        Dave Hansen <dave.hansen@intel.com>,
        Brijesh Singh <brijesh.singh@amd.com>,
        Mike Rapoport <rppt@kernel.org>,
        David Hildenbrand <david@redhat.com>, x86@kernel.org,
        linux-mm@kvack.org, linux-coco@lists.linux.dev,
        linux-efi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCHv5 05/12] efi/x86: Implement support for unaccepted memory
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On Fri, Apr 29, 2022 at 12:53:30PM +0200, Borislav Petkov wrote:
> > +	/*
> > +	 * If unaccepted memory is present allocate a bitmap to track what
> > +	 * memory has to be accepted before access.
> > +	 *
> > +	 * One bit in the bitmap represents 2MiB in the address space:
> > +	 * A 4k bitmap can track 64GiB of physical address space.
> > +	 *
> > +	 * In the worst case scenario -- a huge hole in the middle of the
> > +	 * address space -- It needs 256MiB to handle 4PiB of the address
> > +	 * space.
> > +	 *
> > +	 * TODO: handle situation if params->unaccepted_memory has already set.
> 
> "... is already set."
> 
> And when is that TODO taken care of? Later patch or patchset?

No, not yet. kexec is not a priority at the moment. It will come later.

-- 
 Kirill A. Shutemov