linux-kernel - [ACS PATCH v5 2/2] adding xen dom0 checking

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Message-Id: <1254936471-18602-1-git-send-email-allen.m.kay@intel.com>
Date:	Wed,  7 Oct 2009 10:27:51 -0700
From:	Allen Kay <allen.m.kay@...el.com>
To:	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Cc:	jbarnes@...tuousgeek.org, matthew@....cx, chris@...s-sol.org,
	jeremy@...p.org, don.dugger@...el.com,
	Allen Kay <allen.m.kay@...el.com>
Subject: [ACS PATCH v5 2/2] adding xen dom0 checking

This patch is predicated on Jeremy's patch in include/xen/xen.h.

Signed-off-by: Allen Kay <allen.m.kay@...el.com>
---
 drivers/pci/probe.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index aa98258..e9b347e 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -11,6 +11,7 @@
 #include <linux/cpumask.h>
 #include <linux/pci-aspm.h>
 #include <linux/iommu.h>
+#include <xen/xen.h>
 #include "pci.h"
 
 #define CARDBUS_LATENCY_TIMER	176	/* secondary latency timer */
@@ -1017,7 +1018,7 @@ static void pci_init_capabilities(struct pci_dev *dev)
 	pci_iov_init(dev);
 
 	/* Enable ACS P2P upstream forwarding */
-	if (iommu_found())
+	if (iommu_found() || xen_initial_domain())
 		pci_enable_acs(dev);
 }
 
-- 
1.6.0.6

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