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)
commit2be29982a08009c731307f4a39053b70ac4700da
treef01fcf847f36b9da5cd87cefa7ee6c13d193077d
parentc7245da6ae7e5208504ff027c4e0eec69b788651
x86/paravirt: add sysret/sysexit pvops for returning to 32-bit compatibility userspace

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>
arch/x86/ia32/ia32entry.S
arch/x86/kernel/asm-offsets_64.c
arch/x86/kernel/entry_64.S
arch/x86/kernel/paravirt.c
arch/x86/kernel/paravirt_patch_64.c
include/asm-x86/irqflags.h
include/asm-x86/paravirt.h