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| author | Allen Kay <allen.m.kay@intel.com> | 2009-10-07 10:27:51 -0700 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2009-11-04 08:47:26 -0800 |
| commit | df0e97c6f1f2fdca686036998fe816cefd8e27d7 (patch) | |
| tree | 8cef3a9d3dc141b804507fd8eed195ff8196a7c8 | |
| parent | ae21ee65e8bc228416bbcc8a1da01c56a847a60c (diff) | |
| download | kernel_samsung_crespo-df0e97c6f1f2fdca686036998fe816cefd8e27d7.zip kernel_samsung_crespo-df0e97c6f1f2fdca686036998fe816cefd8e27d7.tar.gz kernel_samsung_crespo-df0e97c6f1f2fdca686036998fe816cefd8e27d7.tar.bz2 | |
PCI: add xen dom0 checking before ACS initialization
This patch is predicated on Jeremy's patch in include/xen/xen.h. It'll
prevent ACS init unless the platform has both an IOMMU and we're running
as dom0.
Signed-off-by: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
| -rw-r--r-- | 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 aac5b15..bb2cc39 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 */ @@ -1007,7 +1008,7 @@ 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); } |