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From: Dave Hansen <dave.hansen@intel.com>
To: "Kiryl Shutsemau (Meta)" <kas@kernel.org>,
	Ard Biesheuvel <ardb@kernel.org>,
	Thomas Gleixner <tglx@kernel.org>, Ingo Molnar <mingo@redhat.com>,
	Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Tom Lendacky <thomas.lendacky@amd.com>
Cc: x86@kernel.org, linux-efi@vger.kernel.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, Moritz Sanft <ms@edgeless.systems>
Subject: Re: [PATCH 1/2] efi: Fix reservation of unaccepted memory table
Date: Fri, 13 Feb 2026 08:01:55 -0800	[thread overview]
Message-ID: <b3b073e4-d51e-4fd7-ad7c-7465dab412b6@intel.com> (raw)
In-Reply-To: <20260213154838.46567-2-kas@kernel.org>

On 2/13/26 07:48, Kiryl Shutsemau (Meta) wrote:
>  static __init void reserve_unaccepted(struct efi_unaccepted_memory *unaccepted)
>  {
> -	phys_addr_t start, size;
> +	phys_addr_t start, end;
>  
>  	start = PAGE_ALIGN_DOWN(efi.unaccepted);

Why are we even aligning the start? Isn't *that* the bug?

The memblock code seems to be able to handle arbitrary alignment just fine.


  reply	other threads:[~2026-02-13 16:02 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-02-13 15:48 [PATCH 0/2] efi: Fix alignenment issues in unaccepted memory code Kiryl Shutsemau (Meta)
2026-02-13 15:48 ` [PATCH 1/2] efi: Fix reservation of unaccepted memory table Kiryl Shutsemau (Meta)
2026-02-13 16:01   ` Dave Hansen [this message]
2026-02-13 16:14     ` Kiryl Shutsemau
2026-02-13 16:46       ` Dave Hansen
2026-02-13 17:20         ` Kiryl Shutsemau
2026-02-14 15:51           ` Mike Rapoport
2026-02-16 14:22             ` Kiryl Shutsemau
2026-02-16 14:51               ` Mike Rapoport
2026-02-16 15:53             ` Dave Hansen
2026-02-16 16:19               ` Mike Rapoport
2026-02-13 15:48 ` [PATCH 2/2] efi: Align unaccepted memory range to page boundary Kiryl Shutsemau (Meta)
2026-02-16 14:51   ` Tom Lendacky
2026-02-16 15:33     ` Kiryl Shutsemau

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