linux-kernel - Re: [PATCH] vmgenid: Remap memory as decrypted

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Message-ID: <CAHmME9o1oJXjt4=5qqGDdBbiK75dvea_e=Z4ceStmk=Z5AYgjQ@mail.gmail.com>
Date: Mon, 22 Dec 2025 15:53:14 +0100
From: "Jason A. Donenfeld" <Jason@...c4.com>
To: Vitaly Kuznetsov <vkuznets@...hat.com>
Cc: "Theodore Ts'o" <tytso@....edu>, Ingo Molnar <mingo@...nel.org>, Kiryl Shutsemau <kas@...nel.org>, 
	linux-kernel@...r.kernel.org, linux-mm@...ck.org, 
	Pradipta Banerjee <prbanerj@...hat.com>, Frank Liang <xiliang@...hat.com>, 
	Alexander Graf <graf@...zon.com>
Subject: Re: [PATCH] vmgenid: Remap memory as decrypted

Hi Vitaly,

On Mon, Dec 22, 2025 at 3:46 PM Vitaly Kuznetsov <vkuznets@...hat.com> wrote:
> -       virt_addr = devm_memremap(&device->dev, phys_addr, VMGENID_SIZE, MEMREMAP_WB);
> +       virt_addr = devm_memremap(&device->dev, phys_addr, VMGENID_SIZE,
> +                                 MEMREMAP_WB | MEMREMAP_DEC);

Thanks for this patch. I still need to do a bit of my own testing with
it, but I've preliminarily applied it to the random.git tree:
https://git.kernel.org/pub/scm/linux/kernel/git/crng/random.git/commit/?id=9476583268980ce64ed75f124768fe3bff6fff4c

Should this patch CC stable@, by the way?

Regards,
Jason