Re: [Xen-devel] [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains
From: Jan Beulich
Date: Wed Feb 18 2015 - 04:49:43 EST
>>> On 18.02.15 at 10:37, <JGross@xxxxxxxx> wrote:
> On 02/18/2015 10:21 AM, Paul Bolle wrote:
>> On Wed, 2015-02-18 at 07:52 +0100, Juergen Gross wrote:
>>> --- a/arch/x86/xen/Kconfig
>>> +++ b/arch/x86/xen/Kconfig
>>> @@ -23,14 +23,29 @@ config XEN_PVHVM
>>> def_bool y
>>> depends on XEN && PCI && X86_LOCAL_APIC
>>> -config XEN_MAX_DOMAIN_MEMORY
>>> - int
>>> - default 500 if X86_64
>>> - default 64 if X86_32
>>> - depends on XEN
>>> - help
>>> - This only affects the sizing of some bss arrays, the unused
>>> - portions of which are freed.
>>> +if X86_64
>> && XEN
> The complete directory is made only if CONFIG_XEN is set.
But that doesn't mean this file gets used only when XEN is enabled.
I would think though that an eventual "if XEN" should have wider
scope than just this option (i.e. likely almost the entire file).
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