From: Jan Beulich <jbeulich@suse.com>
To: Oleksii Kurochko <oleksii.kurochko@gmail.com>
Cc: "Alistair Francis" <alistair.francis@wdc.com>,
"Bob Eshleman" <bobbyeshleman@gmail.com>,
"Connor Davis" <connojdavis@gmail.com>,
"Andrew Cooper" <andrew.cooper3@citrix.com>,
"Anthony PERARD" <anthony.perard@vates.tech>,
"Michal Orzel" <michal.orzel@amd.com>,
"Julien Grall" <julien@xen.org>,
"Roger Pau Monné" <roger.pau@citrix.com>,
"Stefano Stabellini" <sstabellini@kernel.org>,
xen-devel@lists.xenproject.org
Subject: Re: [PATCH for 4.21 v7 2/4] xen/riscv: drop CONFIG_RISCV_ISA_RV64G
Date: Wed, 26 Feb 2025 13:55:00 +0100 [thread overview]
Message-ID: <0585fd30-7052-4600-9edc-a17dd252bd1b@suse.com> (raw)
In-Reply-To: <c48d287edf04f6960a16ad763e09b790bc1bc89b.1740071755.git.oleksii.kurochko@gmail.com>
On 20.02.2025 18:44, Oleksii Kurochko wrote:
> 'G' stands for "imafd_zicsr_zifencei".
>
> Extensions 'f' and 'd' aren't really needed for Xen, and allowing floating
> point registers to be used can lead to crashes.
>
> Extensions 'i', 'm', 'a', 'zicsr', and 'zifencei' are necessary for the
> operation of Xen, which is why they are used explicitly (unconditionally)
> in -march.
>
> Drop "Base ISA" choice from riscv/Kconfig as it is always empty.
>
> Signed-off-by: Oleksii Kurochko <oleksii.kurochko@gmail.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
next prev parent reply other threads:[~2025-02-26 12:55 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-20 17:44 [PATCH for 4.21 v7 0/4] RISC-V runtime detection of extenstions Oleksii Kurochko
2025-02-20 17:44 ` [PATCH for 4.21 v7 1/4] automation: drop debian:11-riscv64 container Oleksii Kurochko
2025-02-21 8:35 ` Jan Beulich
2025-02-21 11:57 ` Oleksii Kurochko
2025-02-21 12:30 ` Jan Beulich
2025-02-21 17:04 ` Oleksii Kurochko
2025-02-21 12:31 ` Jan Beulich
2025-02-20 17:44 ` [PATCH for 4.21 v7 2/4] xen/riscv: drop CONFIG_RISCV_ISA_RV64G Oleksii Kurochko
2025-02-26 12:55 ` Jan Beulich [this message]
2025-02-20 17:44 ` [PATCH for 4.21 v7 3/4] xen/riscv: make zbb as mandatory Oleksii Kurochko
2025-02-26 12:58 ` Jan Beulich
2025-02-26 14:38 ` Oleksii Kurochko
2025-02-26 14:49 ` Jan Beulich
2025-02-26 17:16 ` Oleksii Kurochko
2025-02-20 17:44 ` [PATCH for 4.21 v7 4/4] xen/riscv: identify specific ISA supported by cpu Oleksii Kurochko
2025-02-21 17:02 ` [PATCH for 4.21 v7 0.5/4] xen/README: add compiler and binutils versions for RISCV-64 Oleksii Kurochko
2025-02-24 10:57 ` Jan Beulich
2025-02-24 15:52 ` Oleksii Kurochko
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