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[Xen-devel] Question about xc_translate_foreign_address()
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] Question about xc_translate_foreign_address() |
| From: | AP Xen <apxeng@xxxxxxxxx> |
| Date: | Tue, 24 May 2011 21:47:51 -0700 |
| Delivery-date: | Tue, 24 May 2011 21:48:48 -0700 |
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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? Thanks, AP _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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