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Re: [Xen-devel] Re: [PATCH] Xen Guest Kexec
On 2 Mar 2006, at 09:16, Gerd Hoffmann wrote:
Thanks, it at least doesn't crash any more. It doesn't work yet either,but that most likely is a bug in setting up my page tables ...btw: What happens if I try to install a gdt with zero entries? Can I dothat? Are there some default code/data/stack segments (full 4G minus xen hole) available I can use then? IIRC the domain builders don'tsetup a gdt, so there must be some which are used at boot time until theOS kernel installes its own ...
The default segment descriptors are *always* available. A guest can only install up to a 14-page GDT: the 15th and 16th pages are reserved by Xen and always present.
-- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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