From: Julien Olivain via buildroot <buildroot@buildroot.org>
To: Julien Olivain <ju.o@free.fr>
Cc: buildroot@buildroot.org, Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Subject: Re: [Buildroot] [PATCH next 1/4] arch/arm: add the Neoverse-V1 core
Date: Fri, 13 Mar 2026 21:57:18 +0100 [thread overview]
Message-ID: <d90763e9dec2c5032dc847cf586ca4f4@free.fr> (raw)
In-Reply-To: <20260303202708.2065406-1-ju.o@free.fr>
On 03/03/2026 21:27, Julien Olivain via buildroot wrote:
> This commit adds the Neoverse-V1 core, which is an armv8.4a ISA.
> See: [1] [2].
>
> This CPU support was added in GCC 11. See [3] [4] [5].
>
> This CPU supports Aarch64 at all exception levels (EL0 to EL3).
> It also supports Aarch32 only in EL0 (user-space). This means it's
> technically possible to compile Aarch32 code. GCC has the support
> to do so. Since Buildroot recompiles a full system (ATF, Kernel,
> user-space) this support has limited value. This is why this
> CPU is limited to 64bit builds only.
>
> Qemu added neoverse-v1 support in upstream commit [6], first included
> in v8.1.0.
>
> [1] https://developer.arm.com/Processors/Neoverse%20V1
> [2]
> https://developer.arm.com/documentation/101427/0102/Functional-description/Introduction/About-the-core
> [3] https://gcc.gnu.org/gcc-11/changes.html#arm-targets
> [4]
> https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/config/aarch64/aarch64-cores.def;hb=releases/gcc-11.1.0#l141
> [5]
> https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=c9d56eb777552ac5ee0c281e1f6e34b6fe929b77
> [6]
> https://gitlab.com/qemu-project/qemu/-/commit/c74138c6c040b62e941326a4fbb25a93fdd35b72
>
> Signed-off-by: Julien Olivain <ju.o@free.fr>
Series applied to master.
For the record, I added a note in the commit log about the binutils
support for Neoverse V2/V3.
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prev parent reply other threads:[~2026-03-13 20:57 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-03 20:27 [Buildroot] [PATCH next 1/4] arch/arm: add the Neoverse-V1 core Julien Olivain via buildroot
2026-03-03 20:27 ` [Buildroot] [PATCH next 2/4] arch/arm: add the Neoverse-V2 core Julien Olivain via buildroot
2026-03-03 20:27 ` [Buildroot] [PATCH next 3/4] arch/arm: add the Neoverse-V3 core Julien Olivain via buildroot
2026-03-03 20:27 ` [Buildroot] [PATCH next 4/4] arch/arm: add the Neoverse-V3AE core Julien Olivain via buildroot
2026-03-13 20:57 ` Julien Olivain via buildroot [this message]
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