linux-kernel - [PATCH 3/7] Xen: Add Xen implementation of wbinvd

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Message-Id: <1219341888-23191-3-git-send-email-alex.nixon@citrix.com>
Date:	Thu, 21 Aug 2008 19:04:44 +0100
From:	Alex Nixon <alex.nixon@...rix.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Cc:	Alex Nixon <alex.nixon@...rix.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Ingo Molnar <mingo@...e.hu>
Subject: [PATCH 3/7] Xen:  Add Xen implementation of wbinvd_halt

Signed-off-by: Alex Nixon <alex.nixon@...rix.com>
Cc: Jeremy Fitzhardinge <jeremy@...p.org>
Cc: Ingo Molnar <mingo@...e.hu>
---
 arch/x86/xen/irq.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/x86/xen/irq.c b/arch/x86/xen/irq.c
index bb04260..4e3f7f7 100644
--- a/arch/x86/xen/irq.c
+++ b/arch/x86/xen/irq.c
@@ -122,12 +122,19 @@ static void xen_halt(void)
 		xen_safe_halt();
 }
 
+static void xen_wbinvd_halt(void)
+{
+	native_wbinvd();
+	xen_halt();
+}
+
 static const struct pv_irq_ops xen_irq_ops __initdata = {
 	.init_IRQ = __xen_init_IRQ,
 	.save_fl = xen_save_fl,
 	.restore_fl = xen_restore_fl,
 	.irq_disable = xen_irq_disable,
 	.irq_enable = xen_irq_enable,
+	.wb_invd_halt = xen_wbinvd_halt,
 	.safe_halt = xen_safe_halt,
 	.halt = xen_halt,
 #ifdef CONFIG_X86_64
-- 
1.5.4.3

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