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Re: Arch info lost in "info cpus"


From: Sergio Lopez
Subject: Re: Arch info lost in "info cpus"
Date: Mon, 30 Sep 2019 12:22:22 +0200
User-agent: mu4e 1.2.0; emacs 26.2

Alex Bennée <address@hidden> writes:

> Sergio Lopez <address@hidden> writes:
>
>> Hi,
>>
>> Commit 137b5cb6ab565cb3781d5337591e155932b4230e (hmp: change
>> hmp_info_cpus to use query-cpus-fast) updated the "info cpus" commit to
>> make it more lightweight, but also removed the ability to get the
>> architecture specific status of each vCPU.
>>
>> This information was really useful to diagnose certain Guest issues,
>> without the need of using GDB, which is more intrusive and requires
>> enabling it in advance.
>
> You can always enable the gdbserver from the HMP when you need it.
>
>> Is there an alternative way of getting something equivalent to what
>> "info cpus" provided previously (in 2.10)?
>
> info registers
>
> should give you a full dump of the CPU state including the PC.
>

Both methods are less convenient that what we had before. Perhaps it'd
be reasonable adding a flag to "info cpus" to give users the options of
having the same behavior as before?

Thanks,
Sergio.

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