Re: [Qemu-devel] [PATCH V8 00/11] Add support for binding guest numa nodes to host numa nodes

[Paolo Bonzini]

Il 21/08/2013 11:08, Wanlong Gao ha scritto:
>>>> Also, do you still need a "-m" option if you use "-numa mem"?
>>>
>>> The "-m" options will be used to compute the memory size of each node
>>> if the memory size of each node is not set by "-numa mem" option. This
>>> is also be consistent with the original concept.
>>
>> Ok.  You didn't answer my exact question though---could you run the
>> above command line without "-m 2048"?
> 
> Sorry :(

No problem!

> Sure not. And if the memory size assigned by "-m" option is not equal
> the total memory size assigned by "-numa mem,", the ACPI will write the
> wrong table, then the guest kernel will detect this and ignore the wrong
> ACPI numa table and assume that all of the memory are belong to one node.

Can you make the code print a warning in this case, or fail to start the
VM (if there is "-numa mem" but the total doesn't match "-m"?

> Would you like to run without "-m" option in mind?

This would definitely be nice to have, if it's not too complicated.
Otherwise, the above idea will do.

Paolo