Re: [Xen-devel] [OPTIONAL][PATCH v9 13/13] Add xen-hvm-param

[Don Slutz <dslutz@xxxxxxxxxxx>]

On 02/17/15 09:11, Andrew Cooper wrote:
> On 16/02/15 23:05, Don Slutz wrote:
>> A tool to get and set hvm param.
>>
>> Signed-off-by: Don Slutz <dslutz@xxxxxxxxxxx>
> 
> I had completely forgotten that you did a tool like this before.
> 
> Here is one I implemented myself,
> 
> https://github.com/xenserver/xen-4.5.pg/commit/ec99115818abd1a98f04d5fae2481803ad21db2a
> 
> I was specifically trying to make an extendible tool to avoid the
> currently state of having $N single-purpose tools, and hopefully
> replacing some of the other tools in a more consistent fashion.  e.g.
> xen-hvmcrash will only crash an hvm domain, but could very easily be
> made to do the same to a PV domain (even using the same hypercalls I
> believe, now that some PVH relaxing has occurred).
> 

Having looked at xen-hvmcrash, I am still having questions about when it
would make sense to use.  I would think a pause, dump-core would give a
better info to look at.

> I have half an extension to this tool which will allow you to dump
> various PV rings in the guest, and would like to see about merging
> xen-hvmctx and xenctx together into this tool.
> 

The merging of xen-hvmctx and xenctx is complex.  I do not see that
happening quickly.

> Thoughts?
> 

I combined tool does look good.

These are just the quick thoughts.  May have more later.

   -Don Slutz

> ~Andrew
> 

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