Messages in this thread | | | Date | Tue, 15 Jan 2008 10:34:10 +0900 | From | Simon Horman <> | Subject | Re: [PATCH -mm 1/2] kexec/i386: kexec page table code clean up - add arch_kimage |
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On Mon, Jan 14, 2008 at 01:29:36PM +0000, Ian Campbell wrote: > > On Thu, 2008-01-10 at 17:15 +0900, Simon Horman wrote: > > > Have you tested Xen too? Does it run into issues with this change? > > > > Xen will need to be updated for this change but it shouldn't be a big > > deal. Basically right now it calls __ma() (which is kind of like __pa()) > > on kexec_pgd and friends. Updating the arguments to __ma() to use > > the new arch_kimage pointers should be easy enough. > > I think you mean the Xen specific parts of the kexec machinery in the > kernel.c would need updating rather than the hypervisor, right?
Yes, that is right. Sorry for the confusion.
> I don't think these changes will cause anything more than minor problems > for whoever ports the Xen kexec stuff upstream. > > > N.B: As this is Dom0 code (not DomU) it is maintained in the xen > > repository and has been merged into Linux. > > I don't think we would bother backporting these changes to there, would > we?
No, I was more thinking of the situation where Xen moves its kernel forwards.
-- Horms
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