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From:   Heiko =?ISO-8859-1?Q?St=FCbner?= <heiko@sntech.de>
To:     linux-riscv@lists.infradead.org, palmer@dabbelt.com,
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Cc:     vineetg@rivosinc.com, greentime.hu@sifive.com,
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Subject: Re: [PATCH -next v21 11/27] riscv: Allocate user's vector context in the
 first-use trap
Date:   Thu, 08 Jun 2023 15:58:15 +0200
Message-ID: <1917725.CQOukoFCf9@diego>
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 <20230605110724.21391-12-andy.chiu@sifive.com>
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Am Montag, 5. Juni 2023, 13:07:08 CEST schrieb Andy Chiu:
> Vector unit is disabled by default for all user processes. Thus, a
> process will take a trap (illegal instruction) into kernel at the first
> time when it uses Vector. Only after then, the kernel allocates V
> context and starts take care of the context for that user process.
> 
> Suggested-by: Richard Henderson <richard.henderson@linaro.org>
> Link: https://lore.kernel.org/r/3923eeee-e4dc-0911-40bf-84c34aee962d@linaro.org
> Signed-off-by: Andy Chiu <andy.chiu@sifive.com>

Reviewed-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Tested-by: Heiko Stuebner <heiko.stuebner@vrull.eu>