From: David Vrabel <dvrabel@cantab.net>
To: Juergen Gross <jgross@suse.com>,
linux-kernel@vger.kernel.org, xen-devel@lists.xensource.com,
konrad.wilk@oracle.com, david.vrabel@citrix.com,
boris.ostrovsky@oracle.com
Subject: Re: [Xen-devel] [PATCH 12/13] xen: if p2m list located in to be remapped region delay remapping
Date: Thu, 19 Feb 2015 17:44:56 +0000 [thread overview]
Message-ID: <54E62118.2090704@cantab.net> (raw)
In-Reply-To: <1424242326-26611-13-git-send-email-jgross@suse.com>
On 18/02/2015 06:52, Juergen Gross wrote:
> With adapting the memory layout of dom0 to that of the host care must
> be taken not to remap the initial p2m list supported by the hypervisor.
"...supplied by the hypervisor" ?
> If the p2m map is detected to be in a region which is going to be
> remapped, delay the remapping of that area. Not doing so can either
> crash the system very early, or lead to clobbered data as the target
> memory area of the remap operation will no longer be reserved.
Would it be better to relocate the p2m before remapping memory? If not,
explain why in the commit message.
David
next prev parent reply other threads:[~2015-02-19 17:45 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-02-18 6:51 [PATCH 00/13] xen: support pv-domains larger than 512GB Juergen Gross
2015-02-18 6:51 ` [PATCH 01/13] xen: sync with xen header Juergen Gross
2015-02-18 6:51 ` [PATCH 02/13] xen: anchor linear p2m list in shared info structure Juergen Gross
2015-02-18 10:32 ` [Xen-devel] " David Vrabel
2015-02-18 10:42 ` Juergen Gross
2015-02-18 10:50 ` Andrew Cooper
2015-02-18 10:54 ` David Vrabel
2015-02-18 10:57 ` Andrew Cooper
2015-02-18 10:57 ` Juergen Gross
2015-02-18 10:56 ` Juergen Gross
2015-02-18 10:51 ` David Vrabel
2015-02-18 6:51 ` [PATCH 03/13] xen: eliminate scalability issues from initial mapping setup Juergen Gross
2015-02-18 6:51 ` [PATCH 04/13] xen: move static e820 map to global scope Juergen Gross
2015-02-19 17:27 ` [Xen-devel] " David Vrabel
2015-02-18 6:51 ` [PATCH 05/13] xen: simplify xen_set_identity_and_remap() by using global variables Juergen Gross
2015-02-19 18:10 ` [Xen-devel] " David Vrabel
2015-02-24 6:15 ` Juergen Gross
2015-02-18 6:51 ` [PATCH 06/13] xen: detect pre-allocated memory interfering with e820 map Juergen Gross
2015-02-19 18:07 ` [Xen-devel] " David Vrabel
2015-02-24 6:27 ` Juergen Gross
2015-02-25 14:24 ` David Vrabel
2015-02-25 16:00 ` Juergen Gross
2015-03-30 10:00 ` Juergen Gross
2015-02-18 6:52 ` [PATCH 07/13] xen: find unused contiguous memory area Juergen Gross
2015-02-19 17:31 ` [Xen-devel] " David Vrabel
2015-02-18 6:52 ` [PATCH 08/13] xen: add service function to copy physical memory areas Juergen Gross
2015-02-19 17:35 ` [Xen-devel] " David Vrabel
2015-02-24 6:34 ` Juergen Gross
2015-02-18 6:52 ` [PATCH 09/13] xen: check for kernel memory conflicting with memory layout Juergen Gross
2015-02-19 17:36 ` [Xen-devel] " David Vrabel
2015-02-24 6:45 ` Juergen Gross
2015-02-18 6:52 ` [PATCH 10/13] xen: check pre-allocated page tables for conflict with memory map Juergen Gross
2015-02-19 17:37 ` [Xen-devel] " David Vrabel
2015-02-24 6:45 ` Juergen Gross
2015-02-18 6:52 ` [PATCH 11/13] xen: move initrd away from e820 non-ram area Juergen Gross
2015-02-19 17:42 ` [Xen-devel] " David Vrabel
2015-02-18 6:52 ` [PATCH 12/13] xen: if p2m list located in to be remapped region delay remapping Juergen Gross
2015-02-19 17:44 ` David Vrabel [this message]
2015-02-24 7:01 ` [Xen-devel] " Juergen Gross
2015-02-18 6:52 ` [PATCH 13/13] xen: allow more than 512 GB of RAM for 64 bit pv-domains Juergen Gross
2015-02-18 9:21 ` Paul Bolle
2015-02-18 9:37 ` Juergen Gross
2015-02-18 9:49 ` [Xen-devel] " Jan Beulich
[not found] ` <54E46E3C0200007800060F98@suse.com>
2015-02-18 9:59 ` Juergen Gross
2015-02-18 10:35 ` Paul Bolle
2015-02-18 11:18 ` [Xen-devel] " David Vrabel
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