diff options
author | Simon Horman <horms@verge.net.au> | 2008-10-07 08:40:11 +1100 |
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committer | Simon Horman <horms@verge.net.au> | 2008-10-07 08:40:11 +1100 |
commit | a5e8546a8bff5d2047adc279df5753c44ba7b1a1 (patch) | |
tree | d9ca91f74d8279adbb1d3e942cc7ab145780ee29 /drivers/pci/intel-iommu.c | |
parent | cb7f6a7b716e801097b564dec3ccb58d330aef56 (diff) | |
parent | c7004482e8dcb7c3c72666395cfa98a216a4fb70 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6 into lvs-next-2.6
Diffstat (limited to 'drivers/pci/intel-iommu.c')
-rw-r--r-- | drivers/pci/intel-iommu.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index 8d0e60ac849..c3edcdc08e7 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c @@ -2348,11 +2348,34 @@ static void __init iommu_exit_mempool(void) } +static int blacklist_iommu(const struct dmi_system_id *id) +{ + printk(KERN_INFO "%s detected; disabling IOMMU\n", + id->ident); + dmar_disabled = 1; + return 0; +} + +static struct dmi_system_id __initdata intel_iommu_dmi_table[] = { + { /* Some DG33BU BIOS revisions advertised non-existent VT-d */ + .callback = blacklist_iommu, + .ident = "Intel DG33BU", + { DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"), + DMI_MATCH(DMI_BOARD_NAME, "DG33BU"), + } + }, + { } +}; + + void __init detect_intel_iommu(void) { if (swiotlb || no_iommu || iommu_detected || dmar_disabled) return; if (early_dmar_detect()) { + dmi_check_system(intel_iommu_dmi_table); + if (dmar_disabled) + return; iommu_detected = 1; } } |