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Re: [Xen-devel] [Patch V2 2/2] xen: before ballooning hotplugged memory, set frames to invalid

To: Daniel Kiper <daniel.kiper@xxxxxxxxxx>, Juergen Gross <jgross@xxxxxxxx>
From: David Vrabel <david.vrabel@xxxxxxxxxx>
Date: Mon, 23 Mar 2015 11:59:27 +0000
Cc: pebolle@xxxxxxxxxx, boris.ostrovsky@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
Delivery-date: Mon, 23 Mar 2015 11:59:58 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

On 20/03/15 13:46, Daniel Kiper wrote:
> On Fri, Mar 20, 2015 at 01:55:39PM +0100, Juergen Gross wrote:
>> Commit 25b884a83d487fd62c3de7ac1ab5549979188482 ("x86/xen: set
>> regions above the end of RAM as 1:1") introduced a regression.
>>
> 
> Should not we fill everything above "maxmem" with
> INVALID_P2M_ENTRY at boot time?

No.  See the commit referenced above.

David

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References:
- [Xen-devel] [Patch V2 0/2] xen: fix regressions regarding memory hotplug in pv domains
  - From: Juergen Gross
- [Xen-devel] [Patch V2 2/2] xen: before ballooning hotplugged memory, set frames to invalid
  - From: Juergen Gross
- Re: [Xen-devel] [Patch V2 2/2] xen: before ballooning hotplugged memory, set frames to invalid
  - From: Daniel Kiper

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