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Message-ID: <b097aec1-e549-a89a-ce43-e9c0a71179f2@oracle.com>
Date: Thu, 15 Oct 2020 09:17:12 -0400
From: boris.ostrovsky@...cle.com
To: Andrew Cooper <andrew.cooper3@...rix.com>,
Jason Andryuk <jandryuk@...il.com>,
Juergen Gross <jgross@...e.com>,
Stefano Stabellini <sstabellini@...nel.org>
Cc: Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>,
xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] xen: Kconfig: nest Xen guest options
On 10/15/20 9:10 AM, Andrew Cooper wrote:
> On 15/10/2020 13:37, boris.ostrovsky@...cle.com wrote:
>> On 10/14/20 1:53 PM, Jason Andryuk wrote:
>>> +config XEN_512GB
>>> + bool "Limit Xen pv-domain memory to 512GB"
>>> + depends on XEN_PV && X86_64
>> Why is X86_64 needed here?
>> 512G support was implemented using a direct-mapped P2M, and is rather
> beyond the virtual address capabilities of 32bit.
>
Yes, my point was that XEN_PV already depends on X86_64.
-boris
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