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Re: [Xen-devel] Vanilla Linux 64-bit paravirt guest support

To: Michael Abd-El-Malek <mabdelmalek@xxxxxxx>
Subject: Re: [Xen-devel] Vanilla Linux 64-bit paravirt guest support
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Thu, 10 Apr 2008 10:40:24 -0500
Cc: Mark McLoughlin <markmc@xxxxxxxxxx>, xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Eduardo Habkost <ehabkost@xxxxxxxxxx>
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Michael Abd-El-Malek wrote:
For my purposes, suspend/resume/migrate isn't required. But I might need ballooning. Would I be able to take the balloon driver from and use it in those new trees? The new tree seems to have all the hypercalls and defines the increase_reservation/decrease_reservation op codes. I can add the stub code for these calls.

I have pending patches for balloon support in x86.git (http://people.redhat.com/mingo/x86.git/README)

(I'm not sure what you mean by "allow all hypercalls"; do you mean "all features"?)

I was thinking along the lines of grant hypercalls for mapping another domU's grants. HVM can't let me do that. But I need to be able to do this for my work.

If you have a kernel driver, then you can use those hypercalls.


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