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From: Antony Pavlov <>
To: Ahmad Fatoum <>
Subject: Re: [PATCH 2/2] RISC-V: extend multi-image to support both S- and M-Mode
Date: Tue, 11 May 2021 14:11:58 +0300	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

On Tue, 11 May 2021 08:41:44 +0200
Ahmad Fatoum <> wrote:

> We can't currently mix S-Mode and M-Mode images in the same build
> and there's no straight-forward way to determine which mode we are in.
> Move the decision on which mode barebox is targeted at out of Kconfig
> and into the PBL. PBL code can call either barebox_riscv_supervisor_entry
> or barebox_riscv_machine_entry to signal to barebox proper which mode
> it's running in.

It looks like this comment is slightly outdated.
There is neither barebox_riscv_supervisor_entry nor barebox_riscv_machine_entry
inside the patch.

> Currently the only user of this information is the
> RISC-V timer clocksource driver.

Please add necessary mode check to the sbi_init() from arch/riscv/lib/sbi.c too.

> Any new code that does IS_ENABLED(CONFIG_RISCV_SBI) or
> IS_ENABLED(CONFIG_RISCV_M_MODE) should also be adapted to use riscv_mode().

Best regards,
  Antony Pavlov

barebox mailing list

  reply	other threads:[~2021-05-11 13:05 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-11  6:41 [PATCH 1/2] fixup! gpio: generic: sync with upstream Linux gpio-mmio driver Ahmad Fatoum
2021-05-11  6:41 ` [PATCH 2/2] RISC-V: extend multi-image to support both S- and M-Mode Ahmad Fatoum
2021-05-11 11:11   ` Antony Pavlov [this message]
2021-05-11 11:26     ` Ahmad Fatoum

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