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[209.85.222.43]) by smtp.gmail.com with ESMTPSA id a1e0cc1a2514c-86d90e74811sm2314565241.25.2025.03.19.01.17.32 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 19 Mar 2025 01:17:32 -0700 (PDT) Received: by mail-ua1-f43.google.com with SMTP id a1e0cc1a2514c-86d5e42c924so6584969241.3 for ; Wed, 19 Mar 2025 01:17:32 -0700 (PDT) X-Forwarded-Encrypted: i=1; AJvYcCXjMSmvSWC/55AZsVkNi1PEYLYSrvSFIm4jGZ6iyb+FsY6Mg18WUtIPKrAoGQz2RddwdmbJFFE2JA==@kvack.org X-Received: by 2002:a05:6102:e11:b0:4c1:9288:906c with SMTP id ada2fe7eead31-4c4ec6725e3mr969799137.9.1742372251934; Wed, 19 Mar 2025 01:17:31 -0700 (PDT) MIME-Version: 1.0 References: <20250313000623.3192896-1-jeffxu@google.com> <1bbce89c-1efe-40cf-9085-ec4ec16f7996@lucifer.local> In-Reply-To: From: Geert Uytterhoeven Date: Wed, 19 Mar 2025 09:17:19 +0100 X-Gmail-Original-Message-ID: X-Gm-Features: AQ5f1JpO0_XcfXoHShSgJlnBUI9J7DjzvJzSL8Es7jU8eavT6AC7t4ncH5mz_20 Message-ID: Subject: Re: [PATCH] mseal sysmap: add arch-support txt To: Jeff Xu Cc: edumazet@google.com, m-malladi@ti.com, Kevin Brodsky , guoweikang.kernel@gmail.com, Qi Zheng , Lorenzo Stoakes , akpm@linux-foundation.org, Liam.Howlett@oracle.com, agordeev@linux.ibm.com, borntraeger@linux.ibm.com, gor@linux.ibm.com, hca@linux.ibm.com, kees@kernel.org, linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, svens@linux.ibm.com, thomas.weissschuh@linutronix.de Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: 574758b8p8w53n4ozwd1qykha5gdiw8a X-Rspamd-Queue-Id: 96D0740010 X-Rspam-User: X-Rspamd-Server: rspam09 X-HE-Tag: 1742372257-123486 X-HE-Meta: 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 29JBft8e 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.372826, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Jeff, On Tue, 18 Mar 2025 at 19:39, Jeff Xu wrote: > On Tue, Mar 18, 2025 at 10:21=E2=80=AFAM Jeff Xu wr= ote: > > On Mon, Mar 17, 2025 at 12:14=E2=80=AFPM Geert Uytterhoeven > > wrote: > > > On Mon, 17 Mar 2025 at 20:02, Jeff Xu wrote: > > > > On Mon, Mar 17, 2025 at 11:14=E2=80=AFAM Jeff Xu wrote: > > > > > On Fri, Mar 14, 2025 at 3:41=E2=80=AFAM Geert Uytterhoeven wrote: > > > > > > On Thu, 13 Mar 2025 at 23:26, Jeff Xu wro= te: > > > > > > > On Wed, Mar 12, 2025 at 10:21=E2=80=AFPM Lorenzo Stoakes > > > > > > > wrote: > > > > > > > > On Thu, Mar 13, 2025 at 12:06:23AM +0000, jeffxu@chromium.o= rg wrote: > > > > > > > > > From: Jeff Xu > > > > > > > > > Add Documentation/features/core/mseal_sys_mappings/arch-s= upport.txt > > > > > > > > > > > > > > > > > > Signed-off-by: Jeff Xu > > > > > > > > > > > > Thanks for your patch! > > > > > > > > I used "find * |xargs grep -i CONFIG_64BIT" to look for CONFIG_64B= IT > > > > under arch/, and together with internet search/wiki page, and below= is > > > > the proposed update. > > > > > > That way you only find users of the symbol, not where it is defined. > > > > > > You can use > > > > > > git grep -W "config\s*64BIT" -- arch/ > > > > > > to find out which architectures are 32-bit, 64-bit, or support both. > > > > Microblaze, openrisc, sh, hexagon all don't have CONFIG 64BIT defined > in KCONFIG, and are not using CONFIG_64BIT in their arch code. Is > there something else that makes you point out the hexagon as 32 bit > only (and not other 3) ? AFAIK Microblaze, openrisc, and hexagon are all 32-bit. Linux used to support sh64, but that was dropped, as sh64 never went beyond prototype hardware. Gr{oetje,eeting}s, Geert --=20 Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k= .org In personal conversations with technical people, I call myself a hacker. Bu= t when I'm talking to journalists I just say "programmer" or something like t= hat. -- Linus Torvalds