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[Xen-devel] Re: [Xen-changelog] [xen-unstable] Replace dom0_ops hypercal
| To: | xen-devel@xxxxxxxxxxxxxxxxxxx |
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| Subject: | [Xen-devel] Re: [Xen-changelog] [xen-unstable] Replace dom0_ops hypercall with three new hypercalls: |
| From: | Hollis Blanchard <hollisb@xxxxxxxxxx> |
| Date: | Mon, 28 Aug 2006 10:59:06 -0500 |
| Delivery-date: | Mon, 28 Aug 2006 08:58:57 -0700 |
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| In-reply-to: | <E1GGznZ-00046D-G5@xxxxxxxxxxxxxxxxxxxxx> |
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| Organization: | IBM Linux Technology Center |
| References: | <E1GGznZ-00046D-G5@xxxxxxxxxxxxxxxxxxxxx> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
On Sat, 2006-08-26 at 15:10 +0000, Xen patchbot-unstable wrote: > > >From here on we hope to maintain dom0 kernel compatibility. This > promise is not extended to tool compatibility beyond the existing > guarantee that compatibility will not be broken within a three-level > stable release [3.0.2, 3.0.3, etc.]. That's not going to be true for PowerPC and soon IA64. Because of Xen's use of pointers for hypercall parameters, we need the kernel to translate virtual addresses to physical addresses. That means any time a new hypercall is introduced to the tools, our kernel needs to change to translate the new data structure. The same thing is true because of the 32/64-bit data structure size changes -- the kernel needs to translate data structures because of that as well. -- Hollis Blanchard IBM Linux Technology Center _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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