[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v2 3/3] [GSOC14] FIX:- Race condition between initializing shared ring and mempaging.
On Sun, Jul 20, 2014 at 5:49 PM, Dushyant Behl <myselfdushyantbehl@xxxxxxxxx> wrote: Ian,
The call that enables paging will use the hvm param in the hypervisor to look up the page by its pfn within the guest physical address space. If you call decrease reservation, then the page is removed from the guest phys address space, and the hvm param will point to a hole. And the call will fail of course. So you need to call decrease reservation strictly after enable paging.
AndresÂ
Thanks and Regards, Dushyant Behl _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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