Xen devel - Apr 2005 - [PATCH] libxc x86-64 enablement addons (almost working)

These patches add code needed to allow x86-64 to launch 64bit domains.
You still cannot 100% boot a full domU domain just yet (but you can see
it being created in xm list). There is still one more issue where when
calling the last hypercall to set the domain up you get EINVAL. I
believe this could be due to how I am initializing the page tables
(which is probably wrong...if you see this is wrong don''t hesitate to
say so :-) ). I want to go ahead and get this code in the tree as it
will not affect x86 xen building in anyway...and perhaps could resolve
the problem with more folks giving input.



-- 
Jerone Young
IBM Linux Technology Center
jyoung5@us.ibm.com
512-838-1157 (T/L: 678-1157)




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> 	These patches add code needed to allow x86-64 to launch 64bit domains.
> You still cannot 100% boot a full domU domain just yet (but you can see
> it being created in xm list). There is still one more issue where when
> calling the last hypercall to set the domain up you get EINVAL. I
> believe this could be due to how I am initializing the page tables
> (which is probably wrong...if you see this is wrong don''t hesitate
to
> say so :-) ). I want to go ahead and get this code in the tree as it
> will not affect x86 xen building in anyway...and perhaps could resolve
> the problem with more folks giving input.
Can x86_64 building be added to xc_linux_build.c rather than having a
new file?

If you look at the dom0 builder (domain_builder.c) I was able to share
code almost entirely, except for actually building the intial
pagetables. 

I''d like to see more merging in the builders rather than less as we
risk having six builders with fair chunks of shared code between them
(32- and 64-bit versions of linux/plan9/vmx builders).

 -- Keir

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