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Re: [Xen-devel] Xen boot failure with WXN bit set

To: Ian Campbell <Ian.Campbell@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxx
From: Vijay Kilari <vijay.kilari@xxxxxxxxx>
Date: Thu, 27 Mar 2014 16:41:38 +0530
Cc: Prasun Kapoor <Prasun.Kapoor@xxxxxxxxxxxxxxxxxx>, Julien Grall <julien.grall@xxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>
Delivery-date: Thu, 27 Mar 2014 11:11:49 +0000
List-id: Xen developer discussion <xen-devel.lists.xen.org>

CC: Xen-dev

>> I think, by adding more code, there is overflow in code which is going
>> beyond mapping
>> area and hence setting WXN bit is causing some piece of code to kept
>> in writable region
>> which is set to XN.
>>
>> Looks like there is limit in number of page entries allocated to xen
>> code & ro data region
>>
>> My xen size is 591280 bytes.
>>
>> Any idea?
>>
>> Regards
>> Vijay
>
>

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