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Re: [Xen-devel] Fw: bigphysarea patch on xen capable linux
| To: | Jan Beulich <JBeulich@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Fw: bigphysarea patch on xen capable linux |
| From: | "Kashmira. K." <chimnee@xxxxxxxxx> |
| Date: | Tue, 12 Jan 2010 12:49:58 -0800 (PST) |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Tue, 12 Jan 2010 12:50:26 -0800 |
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Hi Jan, I looked at the linux code xen_create_contiguous_region(). It appears the 2MB limit comes from the #define MAX_CONIG_ORGER 9. Could that be modified to get more than 2MB. If not would you have other suggestions of how I can I get around 500M or more of physically contiguous memory on Xen in Dom0 linux. Thanks Kashmira --- On Tue, 1/12/10, Jan Beulich <JBeulich@xxxxxxxxxx> wrote: > From: Jan Beulich <JBeulich@xxxxxxxxxx> > Subject: Re: [Xen-devel] Fw: bigphysarea patch on xen capable linux > To: "Kashmira. K." <chimnee@xxxxxxxxx> > Cc: xen-devel@xxxxxxxxxxxxxxxxxxx > Date: Tuesday, January 12, 2010, 12:53 AM > >>> "Kashmira. K." <chimnee@xxxxxxxxx> > 08.01.10 02:10 >>> > > 1. Is the bigphysarea patch supported on Xen capable > > linux? If not what is the maximum physically > > contiguous memory Xen provides. > > 2Mb is the maximum you can create. > > > 2. If I were to run my application in DomU instead of > Dom0, > > can the bigphysarea patch be used then. > > In a fully virtualized DomU this should be possible (unless > you imply to > be able to use 1G pages). > > Jan > > _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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