From: Luming Yu <luyu@redhat.com>
Date: Fri, 20 Aug 2010 06:33:37 -0400
Subject: [virt] xen: add dummy mwait for xen to make it compile
Message-id: <4C6E21C1.7030706@redhat.com>
Patchwork-id: 27729
O-Subject: [RHEL 5.6 PATCH 3/3] bz 573514: dummy mwait for xen to make it compile
Bugzilla: 573514
RH-Acked-by: Prarit Bhargava <prarit@redhat.com>
RH-Acked-by: Stefan Assmann <sassmann@redhat.com>

Bugzilla #573514

Description of problem:

There is compile time issue with mwait patch in xen. but I believe xen
does not use mwait.

Please review and ACk

Thanks,
Luming

Signed-off-by: Jarod Wilson <jarod@redhat.com>

diff --git a/arch/i386/kernel/process-xen.c b/arch/i386/kernel/process-xen.c
index 6cad288..4650962 100644
--- a/arch/i386/kernel/process-xen.c
+++ b/arch/i386/kernel/process-xen.c
@@ -198,6 +198,8 @@ EXPORT_SYMBOL_GPL(cpu_idle_wait);
 /* Always use xen_idle() instead. */
 void __devinit select_idle_routine(const struct cpuinfo_x86 *c) {}
 
+void mwait_idle_with_hints(unsigned long eax, unsigned long ecx) {}
+
 void show_regs(struct pt_regs * regs)
 {
 	unsigned long cr0 = 0L, cr2 = 0L, cr3 = 0L, cr4 = 0L;
diff --git a/arch/x86_64/kernel/process-xen.c b/arch/x86_64/kernel/process-xen.c
index 382068d..e458fca 100644
--- a/arch/x86_64/kernel/process-xen.c
+++ b/arch/x86_64/kernel/process-xen.c
@@ -205,6 +205,8 @@ EXPORT_SYMBOL_GPL(cpu_idle_wait);
 /* Always use xen_idle() instead. */
 void __cpuinit select_idle_routine(const struct cpuinfo_x86 *c) {}
 
+void mwait_idle_with_hints(unsigned long eax, unsigned long ecx) {}
+
 /* Prints also some state that isn't saved in the pt_regs */ 
 void __show_regs(struct pt_regs * regs)
 {