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xen-devel
[Xen-devel] Re: [PATCH] XEN_DOMAIN_MEMORY options.
On 10/14/2011 04:33 PM, Maxim Uvarov wrote:
> On 10/14/2011 04:00 PM, Jeremy Fitzhardinge wrote:
>> On 10/14/2011 03:36 PM, Maxim Uvarov wrote:
>>> Hello,
>>>
>>> Please find here patches for XEN_MAX_DOMAIN_MEMORY:
>>>
>>> [PATCH 1/2] xen: Fix XEN_MAX_DOMAIN_MEMORY to be selectable
>>> [PATCH 2/2] xen: Make XEN_MAX_DOMAIN_MEMORY have more sensible
>>> defaults for 32-bit builds
>>
>> What's the rationale?
>>
>> J
>
> The first patch is actually bug fix. You can not define just "int"
> without description in Kconfig. As the result this option will not be
> visible in menuconfig. Even if you will change it in .config make
> oldconfig will set it up for default value. So you need to add any
> description to it as all others int options have.
No, that was deliberate, because I don't really think there's a need to
change it.
>
> Second patch is more optional and it's just suggestion to use for 32
> bit more corresponding value.
While it would be very silly to put 128GB of actual RAM on a 32-bit
machine, systems can have non-contiguous RAM placed at high addresses,
which would no longer be accessible.
J
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