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[91.219.240.17]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-47d193cbc0bsm195443905e9.11.2025.12.22.07.18.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Dec 2025 07:18:22 -0800 (PST) From: Vitaly Kuznetsov To: "Jason A. Donenfeld" Cc: Theodore Ts'o , Ingo Molnar , Kiryl Shutsemau , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Pradipta Banerjee , Frank Liang , Alexander Graf Subject: Re: [PATCH] vmgenid: Remap memory as decrypted In-Reply-To: References: <20251222144646.1426256-1-vkuznets@redhat.com> Date: Mon, 22 Dec 2025 16:18:20 +0100 Message-ID: <87jyye35qb.fsf@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable "Jason A. Donenfeld" writes: > Hi Vitaly, > > On Mon, Dec 22, 2025 at 3:46=E2=80=AFPM Vitaly Kuznetsov wrote: >> - virt_addr =3D devm_memremap(&device->dev, phys_addr, VMGENID_SIZ= E, MEMREMAP_WB); >> + virt_addr =3D devm_memremap(&device->dev, phys_addr, VMGENID_SIZ= E, >> + 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/?i= d=3D9476583268980ce64ed75f124768fe3bff6fff4c > > Should this patch CC stable@, by the way? > I'm not sure how common the configuration (SEV-SNP/(TDX?) + vmgenid) is but I guess AWS SEV-SNP config is significant enough to justify stable@ as all kernels 6.15+ don't boot there at all. --=20 Vitaly