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From: Alistair Francis <alistair23@gmail.com>
To: Akihiko Odaki <akihiko.odaki@daynix.com>
Cc: "Alex Bennée" <alex.bennee@linaro.org>,
	"Mikhail Tyutin" <m.tyutin@yadro.com>,
	"Aleksandr Anenkov" <a.anenkov@yadro.com>,
	qemu-devel@nongnu.org,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Fabiano Rosas" <farosas@suse.de>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Alistair Francis" <alistair.francis@wdc.com>,
	"Bin Meng" <bin.meng@windriver.com>,
	"Weiwei Li" <liweiwei@iscas.ac.cn>,
	"Daniel Henrique Barboza" <dbarboza@ventanamicro.com>,
	"Liu Zhiwei" <zhiwei_liu@linux.alibaba.com>,
	qemu-riscv@nongnu.org
Subject: Re: [PATCH v6 1/5] hw/riscv: Use misa_mxl instead of misa_mxl_max
Date: Thu, 23 Nov 2023 13:04:35 +1000	[thread overview]
Message-ID: <CAKmqyKMo41GMJ0vVN2_CsfOVrfsz8H9AtxTe6-JbtX+Pi6B3DA@mail.gmail.com> (raw)
In-Reply-To: <20231030054834.39145-2-akihiko.odaki@daynix.com>

On Mon, Oct 30, 2023 at 3:50 PM Akihiko Odaki <akihiko.odaki@daynix.com> wrote:
>
> The effective MXL value matters when booting.

This doesn't sound right. Surely the max is what matters here

Also, this was specifically changed to misa_mxl_max in db23e5d981a
"target/riscv: Replace riscv_cpu_is_32bit with riscv_cpu_mxl".

This needs a much better description of why this change should be made

Alistair

>
> Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
> ---
>  hw/riscv/boot.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/hw/riscv/boot.c b/hw/riscv/boot.c
> index 52bf8e67de..dad3f6e7b1 100644
> --- a/hw/riscv/boot.c
> +++ b/hw/riscv/boot.c
> @@ -36,7 +36,7 @@
>
>  bool riscv_is_32bit(RISCVHartArrayState *harts)
>  {
> -    return harts->harts[0].env.misa_mxl_max == MXL_RV32;
> +    return harts->harts[0].env.misa_mxl == MXL_RV32;
>  }
>
>  /*
> --
> 2.42.0
>
>


  reply	other threads:[~2023-11-23  3:06 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-30  5:46 [PATCH v6 0/5] gdbstub and TCG plugin improvements Akihiko Odaki
2023-10-30  5:46 ` [PATCH v6 1/5] hw/riscv: Use misa_mxl instead of misa_mxl_max Akihiko Odaki
2023-11-23  3:04   ` Alistair Francis [this message]
2023-11-23  7:24     ` Akihiko Odaki
2023-12-15  5:34       ` Alistair Francis
2023-12-15  6:34         ` Akihiko Odaki
2023-12-18  3:15           ` Alistair Francis
2023-10-30  5:46 ` [PATCH v6 2/5] target/riscv: Remove misa_mxl validation Akihiko Odaki
2023-11-23  3:08   ` Alistair Francis
2023-10-30  5:46 ` [PATCH v6 3/5] target/riscv: Move misa_mxl_max to class Akihiko Odaki
2023-10-30  5:46 ` [PATCH v6 4/5] target/riscv: Validate misa_mxl_max only once Akihiko Odaki
2023-10-30  5:46 ` [PATCH v6 5/5] default-configs: Add TARGET_XML_FILES definition Akihiko Odaki
2023-10-30  8:47   ` Philippe Mathieu-Daudé
2023-10-31 22:37     ` Alex Bennée
2023-11-23  3:10 ` [PATCH v6 0/5] gdbstub and TCG plugin improvements Alistair Francis
2023-11-23  7:30   ` Akihiko Odaki

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