[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Vanilla Linux 64-bit paravirt guest support
On Apr 10, 2008, at 10:57 AM, Jeremy Fitzhardinge wrote: Michael Abd-El-Malek wrote:On Apr 10, 2008, at 10:11 AM, Mark McLoughlin wrote:On Thu, 2008-04-10 at 09:01 -0500, Jeremy Fitzhardinge wrote:Michael Abd-El-Malek wrote:Is 64-bit domU support available anywhere at the moment? For example,what is the status of the git://git.et.redhat.com/xen-pvops-64.gittree? I pulled that tree and tried building 64-bit Xen domU support(since this tree allows you to configure the kernel with thatcapability, unlike the vanilla Linux tree). But compilation failed inenlighten.c because xen_smp_ops isn't defined in x86_64.Try building without CONFIG_SMP, it doesn't support that yet.Other than SMP support, does the tree represent a fully functional 64-bit PV domU support? Does it also allow all hypercalls? Put another way: is a 64-bit PV domU from that tree less capable than a 64-bit PV domU from Xen's linux-2.6.18.8 tree?The 32-bit domU implementation is less capable than 2.6.18-xen. For example, it does not yet support suspend/resume/migrate or ballooning, and a number of interesting features are not yet in a released kernel (pvfb). Further out I hope we'll get things like dom0 support in as well. For my purposes, suspend/resume/migrate isn't required. But I might need ballooning. Would I be able to take the balloon driver from 2.6.18.8 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'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. Thanks, Mike _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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