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x86/paravirt: add sysret/sysexit pvops for returning to 32-bit compatibility userspace
authorJeremy Fitzhardinge <jeremy@goop.org>
Wed, 25 Jun 2008 04:19:28 +0000 (00:19 -0400)
committerIngo Molnar <mingo@elte.hu>
Tue, 8 Jul 2008 11:15:52 +0000 (13:15 +0200)
In a 64-bit system, we need separate sysret/sysexit operations to
return to a 32-bit userspace.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citirx.com>
Cc: xen-devel <xen-devel@lists.xensource.com>
Cc: Stephen Tweedie <sct@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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