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Re: [Xen-devel] Hypervisor Debugging GDB, KDB
- To: Jan Ruh <jan.ruh@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Fri, 15 Mar 2019 16:48:03 +0000
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- Delivery-date: Fri, 15 Mar 2019 17:00:03 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
- Openpgp: preference=signencrypt
On 14/03/2019 09:18, Jan Ruh wrote:
> Dear Xen Developer mailing list,
>
> I have been looking for detailed Information about the current status of Xen
> hypervisor debugging. I checked the mailing list (questions mostly unanswered
> or outdated), the repositories, and several search engine without a
> satisfying answer to my question. Is there any way of single stepping Xen
> hypervisor as we usually do, e.g., with the Linux kernel using gdb and kdb
> over serial port? If so can you give me a hint where to find this
> information, furthermore it might be good to make this information easily
> accessible for newcomers in Xen development.
There is a GDB stub, which can be compiled in with CONFIG_CRASH_DEBUG,
and you can configure debugging over the serial.
See
https://xenbits.xen.org/docs/unstable/misc/xen-command-line.html#console
for instructions.
Whether this works or not is a different matter. I'm not sure if anyone
actually uses it at all.
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You do realise you've just broadcast this email to the whole world?
Emails sent to public open source mailing lists shouldn't contain such
disclaimer.
~Andrew
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