Hi all, I apologize for giving the wrong impression. While I agree that I was trying to avoid going through the source code. I had previously looked online and found that that Xen did not support MTRR. I guess that is true. Anyways, thanks for the feedback. I should be more careful in asking question in the mailing list. :) Probably culturing a bad habit due to overuse of stackoverflow.com, which thrives on this model. :)
Thanks and Regards, Ayush Ruia. Regards, Ayush Ruia. On Tue, Jan 13, 2015 at 4:36 AM, Ian Campbell <ian.campb...@citrix.com> wrote: > On Mon, 2015-01-12 at 19:59 -0600, ayush ruia wrote: > > Hi all, > > Hoping that you could answer a few of my queries regarding cache > > properties for Xen. > > > > Is there any support from Xen for supporting MTRRs or any similar > > caching mechanisms such as PAT? How does Xen handle I/O ranges because > > different memory regions may have different caching requirements and > > any domU can be allocated I/O regions? Is the control on x86 only on > > individual page basis? How does that reflect in terms of Intel VT-x > > and Intel VT-d extensions and VMCS structures? > > > > > > Any pointers regarding the above will be very helpful and highly > > appreciated. > > grep'ping for some of those keywords in the Xen source code and search > for "Xen $keyword" on a search engine should give you a reasonable > starting point. > > See also http://wiki.xen.org/wiki/Asking_Xen_Devel_Questions > > Ian. > > >
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