From: Leo Liang <ycliang@andestech.com>
To: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Cc: Rick Chen <rick@andestech.com>, <u-boot@lists.denx.de>
Subject: Re: [PATCH 1/1] cmd: add rdcycle test to RISC-V exception command
Date: Tue, 13 Aug 2024 11:27:39 +0800 [thread overview]
Message-ID: <ZrrSq_UaYPaoKYAb@swlinux02> (raw)
In-Reply-To: <20240811144123.211756-1-heinrich.schuchardt@canonical.com>
On Sun, Aug 11, 2024 at 04:41:23PM +0200, Heinrich Schuchardt wrote:
> [EXTERNAL MAIL]
>
> Some versions of KVM don't allow access to the cycle CSR.
>
> Provide a command 'exception rdcycle' for testing.
>
> If the cycle CSR is accessible, we get an output like:
>
> => exception rdcycle
> cycle = 0x41f7563de
>
> If the cycle CSR is not accessible, we get an output like:
>
> => exception rdcycle
> Unhandled exception: Illegal instruction
>
> Put subcommands into alphabetical order in long help.
>
> Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
> ---
> cmd/riscv/exception.c | 15 +++++++++++++--
> 1 file changed, 13 insertions(+), 2 deletions(-)
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
prev parent reply other threads:[~2024-08-13 3:27 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-11 14:41 [PATCH 1/1] cmd: add rdcycle test to RISC-V exception command Heinrich Schuchardt
2024-08-13 3:27 ` Leo Liang [this message]
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