From: Juergen Gross <jgross@suse.com>
To: David Vrabel <david.vrabel@citrix.com>,
linux-kernel@vger.kernel.org, xen-devel@lists.xensource.com,
konrad.wilk@oracle.com, boris.ostrovsky@oracle.com,
jbeulich@suse.com
Subject: Re: [PATCH 3/3] xen: eliminate scalability issues from initial mapping setup
Date: Fri, 05 Sep 2014 10:03:34 +0200 [thread overview]
Message-ID: <54096E56.3050809@suse.com> (raw)
In-Reply-To: <54086244.7020601@citrix.com>
On 09/04/2014 02:59 PM, David Vrabel wrote:
> On 04/09/14 13:38, Juergen Gross wrote:
>> Direct Xen to place the initial P->M table outside of the initial
>> mapping, as otherwise the 1G (implementation) / 2G (theoretical)
>> restriction on the size of the initial mapping limits the amount
>> of memory a domain can be handed initially.
>
> The three level p2m limits memory to 512 GiB on x86-64 but this patch
> doesn't seem to address this limit and thus seems a bit useless to me.
Yeah, there seem to be some bits missing...
I'll add another patch to support a 4 level p2m scheme in the kernel.
For the Xen tools I'll do it, too.
Juergen
prev parent reply other threads:[~2014-09-05 8:03 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-04 12:38 [PATCH 0/3] xen: remove memory limits from pv-domains Juergen Gross
2014-09-04 12:38 ` [PATCH 1/3] xen: sync some headers with xen tree Juergen Gross
2014-09-04 12:52 ` Jan Beulich
2014-09-04 12:52 ` Jan Beulich
2014-09-05 8:06 ` Juergen Gross
2014-09-04 12:38 ` [PATCH 2/3] xen: eliminate scalability issues from initrd handling Juergen Gross
2014-09-04 12:52 ` David Vrabel
2014-09-04 12:52 ` David Vrabel
2014-09-04 14:29 ` Jan Beulich
2014-09-04 14:29 ` Jan Beulich
2014-09-04 14:53 ` [Xen-devel] " David Vrabel
2014-09-04 14:53 ` David Vrabel
2014-09-05 8:04 ` Juergen Gross
2014-09-04 12:38 ` [PATCH 3/3] xen: eliminate scalability issues from initial mapping setup Juergen Gross
2014-09-04 12:59 ` David Vrabel
2014-09-04 12:59 ` David Vrabel
2014-09-04 13:02 ` [Xen-devel] " Andrew Cooper
2014-09-04 13:02 ` Andrew Cooper
2014-09-04 14:31 ` Jan Beulich
2014-09-04 14:31 ` Jan Beulich
2014-09-04 14:43 ` Andrew Cooper
2014-09-04 14:43 ` Andrew Cooper
2014-09-05 7:55 ` Juergen Gross
2014-09-05 9:05 ` Andrew Cooper
2014-09-05 9:05 ` Andrew Cooper
2014-09-05 9:44 ` Juergen Gross
2014-09-04 15:13 ` David Vrabel
2014-09-04 15:13 ` David Vrabel
2014-09-05 8:03 ` Juergen Gross [this message]
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