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Re: [Xen-devel] Question about xc_translate_foreign_address()

To: AP Xen <apxeng@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>

From: Keir Fraser <keir.xen@xxxxxxxxx>

Date: Wed, 25 May 2011 07:16:52 +0100

Cc:

Delivery-date: Tue, 24 May 2011 23:18:04 -0700

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Thread-topic: [Xen-devel] Question about xc_translate_foreign_address()

On 25/05/2011 05:47, "AP Xen" <apxeng@xxxxxxxxx> wrote: > I have a question about xc_translate_foreign_address(). When this call > is issued for VCPU1 in a 2 VCPU guest where VCPU1 is in a paused state > and VCPU0 is active, there is a possibility that VCPU0 could change > the page tables that VCPU1 is using. There is a window where the > function could return incorrect information. Is this true or there is > something that prevents it from happening? The assumption is that the whole domain is paused. -- Keir > Thanks, > AP > > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxx > http://lists.xensource.com/xen-devel _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel

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