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[Xen-devel] new domain builder breaks compatibility

from [John Levon]

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Subject:	[Xen-devel] new domain builder breaks compatibility
From:	John Levon <levon@xxxxxxxxxxxxxxxxx>
Date:	Wed, 31 Jan 2007 21:48:43 +0000
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To quote xen.h:

495  *  9. There is guaranteed to be at least 512kB padding after the final
496  *     bootstrap element. If necessary, the bootstrap virtual region is
497  *     extended by an extra 4MB to ensure this.

The new domain builder forgot this:

763     if (dom->alloc_bootstack)
764         dom->bootstack_pfn = xc_dom_alloc_page(dom, "boot stack");
765     xc_dom_printf("%-20s: virt_alloc_end : 0x%" PRIx64 "\n",
766                   __FUNCTION__, dom->virt_alloc_end);

which, predictably enough, breaks Solaris, which tries to use this area as
ecratch memory during early boot.

regards
john

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