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xen-devel
[Xen-devel] Re: [patch 13/26] Xen-paravirt_ops: Consistently wrap paravi
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[Xen-devel] Re: [patch 13/26] Xen-paravirt_ops: Consistently wrap paravirt ops callsites to make them patchable |
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David Miller <davem@xxxxxxxxxxxxx> |
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Date: |
Fri, 16 Mar 2007 02:33:31 -0700 (PDT) |
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zach@xxxxxxxxxx, jeremy@xxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, ak@xxxxxx, rusty@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, chrisw@xxxxxxxxxxxx, virtualization@xxxxxxxxxxxxxx, anthony@xxxxxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, torvalds@xxxxxxxxxxxxxxxxxxxx |
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From: Ingo Molnar <mingo@xxxxxxx>
Date: Fri, 16 Mar 2007 10:24:45 +0100
> ugh. This is beyond ugly! Why dont we just compile two images, one for
> Xen and one for native, do two passes to get those two images and
> 'merge' them into a single vmlinuz (so that we still have a 'single'
> kernel unit to deal with on the distro side). This way we avoid all this
> crazy, limited, fragile patchery business...
Perhaps the problem can be dealt with using ELF relocations.
There is another case, discussed yesterday on netdev, where run-time
resolution of ELF relocations would be useful (for
very-very-very-read-only variables) so if it can solve this problem
too it would be nice to have a generic infrastructure for it.
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