From: beth kon <eak@us.ibm.com>
To: Xen-devel@lists.xensource.com
Subject: Question about x86_compat
Date: Mon, 03 Dec 2007 21:56:26 -0500 [thread overview]
Message-ID: <4754C1DA.109@us.ibm.com> (raw)
arch_setup_meminit ignores the return code from x86_compat. Is this
intentional? I see that the message printed in x86_compat is a warning
if the do_domctl fails, so assume ignoring the return code in
arch_setup_meminit may be intentional. If so, what does this imply when
a 32 bit guest attempts to start on a 64 bit machine?
I followed up the call chain from x86_compat (trying to understand its
intent) and it appears to be a pretty integral part of creating any
domain, so I assume that XEN_DOMCTL_set_address_size is the call that
actually specifies to Xen whether a domain is 32 or 64? So if that call
fails, is the domain just set to be the machine's native size by
default? But what would that mean for a 32 on 64 guest?
I hope my questions are clear. This area is a little muddy for me. Thanks!
--
Elizabeth Kon (Beth)
IBM Linux Technology Center
Open Hypervisor Team
email: eak@us.ibm.com
next reply other threads:[~2007-12-04 2:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-04 2:56 beth kon [this message]
2007-12-04 9:45 ` Question about x86_compat Keir Fraser
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