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>,
Dave Hansen <dave.hansen@intel.com>,
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>,
David Rientjes <rientjes@google.com>,
Vlastimil Babka <vbabka@suse.cz>,
Tom Lendacky <thomas.lendacky@amd.com>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Ingo Molnar <mingo@redhat.com>,
Dario Faggioli <dfaggioli@suse.com>,
Mike Rapoport <rppt@kernel.org>,
David Hildenbrand <david@redhat.com>,
Mel Gorman <mgorman@techsingularity.net>,
marcelo.cerri@canonical.com, tim.gardner@canonical.com,
khalid.elmously@canonical.com, philip.cox@canonical.com,
aarcange@redhat.com, peterx@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: [PATCHv13 5/9] efi: Add unaccepted memory support
Date: Tue, 6 Jun 2023 15:19:24 +0300 [thread overview]
Message-ID: <20230606121924.wcjezcppuiofvnk6@box.shutemov.name> (raw)
In-Reply-To: <20230605191225.GCZH4zmbtkWWRG4lzf@fat_crate.local>
On Mon, Jun 05, 2023 at 09:12:25PM +0200, Borislav Petkov wrote:
> So how about you explain that explicitly somewhere, perhaps in a comment
> above accept_memory(), that the unaccepted range is not the whole memory
> but only, well, what is unaccepted and the rest is implicitly accepted?
Does it look okay to you?
/*
* accept_memory() -- Consult bitmap and accept the memory if needed.
*
* Only memory that explicitly marked as unaccepted in the bitmap requires
* an action.
*
* No need to accept:
* - anything if the system has no unaccepted table;
* - memory that is below phys_base;
* - memory that is above the memory that addressable by the bitmap;
*/
--
Kiryl Shutsemau / Kirill A. Shutemov
next prev parent reply other threads:[~2023-06-06 12:19 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-01 18:25 [PATCHv13 0/9] mm, x86/cc, efi: Implement support for unaccepted memory Kirill A. Shutemov
2023-06-01 18:25 ` [PATCHv13 1/9] mm: Add " Kirill A. Shutemov
2023-06-01 18:25 ` [PATCHv13 2/9] efi/x86: Get full memory map in allocate_e820() Kirill A. Shutemov
2023-06-01 18:25 ` [PATCHv13 3/9] efi/libstub: Implement support for unaccepted memory Kirill A. Shutemov
2023-06-02 12:10 ` Borislav Petkov
2023-06-02 12:20 ` Kirill A. Shutemov
2023-06-01 18:25 ` [PATCHv13 4/9] x86/boot/compressed: Handle " Kirill A. Shutemov
2023-06-02 14:06 ` Borislav Petkov
2023-06-02 15:36 ` Kirill A. Shutemov
2023-06-02 15:59 ` Ard Biesheuvel
2023-06-02 16:10 ` Borislav Petkov
2023-06-02 16:09 ` Borislav Petkov
2023-06-02 16:17 ` Ard Biesheuvel
2023-06-02 16:45 ` Borislav Petkov
2023-06-05 11:29 ` Kirill A. Shutemov
2023-06-01 18:25 ` [PATCHv13 5/9] efi: Add unaccepted memory support Kirill A. Shutemov
2023-06-05 15:43 ` Borislav Petkov
2023-06-05 17:33 ` Kirill A. Shutemov
2023-06-05 19:12 ` Borislav Petkov
2023-06-05 21:37 ` Kirill A. Shutemov
2023-06-06 12:19 ` Kirill A. Shutemov [this message]
2023-06-06 12:29 ` Borislav Petkov
2023-06-01 18:25 ` [PATCHv13 6/9] efi/unaccepted: Avoid load_unaligned_zeropad() stepping into unaccepted memory Kirill A. Shutemov
2023-06-01 18:25 ` [PATCHv13 7/9] x86/tdx: Make _tdx_hypercall() and __tdx_module_call() available in boot stub Kirill A. Shutemov
2023-06-01 18:25 ` [PATCHv13 8/9] x86/tdx: Refactor try_accept_one() Kirill A. Shutemov
2023-06-01 18:25 ` [PATCHv13 9/9] x86/tdx: Add unaccepted memory support Kirill A. Shutemov
2023-06-02 13:22 ` Tom Lendacky
2023-06-02 14:26 ` Tom Lendacky
2023-06-05 19:18 ` Dave Hansen
2023-06-05 21:39 ` Kirill A. Shutemov
2023-06-02 14:35 ` Kirill A. Shutemov
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