tree 90341ef7d622f94ead77cfa57c05d6b32ba2298c
parent 4a36d217bb131ec82cdb9a010221d6ae420aaf1b
author Heinrich Schuchardt <heinrich.schuchardt@canonical.com> 1723387283 +0200
committer Leo Yu-Chi Liang <ycliang@andestech.com> 1725934243 +0800

cmd: add rdcycle test to RISC-V exception command

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>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>