x86/paravirt, 64-bit: don't restore user rsp within sysret
authorJeremy Fitzhardinge <jeremy@goop.org>
Wed, 25 Jun 2008 04:19:27 +0000 (00:19 -0400)
committerIngo Molnar <mingo@elte.hu>
Tue, 8 Jul 2008 11:13:37 +0000 (13:13 +0200)
commitc7245da6ae7e5208504ff027c4e0eec69b788651
tree47767af25940999d36f4682dd3e0820c1580092a
parentd75cd22fdd5f7d203fb60014d426942df33dd9a6
x86/paravirt, 64-bit: don't restore user rsp within sysret

There's no need to combine restoring the user rsp within the sysret
pvop, so split it out.  This makes the pvop's semantics closer to the
machine instruction.

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/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