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authorJoerg Roedel <joerg.roedel@amd.com>2009-12-10 11:12:25 +0100
committerJoerg Roedel <joerg.roedel@amd.com>2009-12-10 12:23:47 +0100
commit8638c4914f34fedc1c13b1cc13f6d1e5a78c46b4 (patch)
tree55cc1616c02f140a92f467ef493137d5085537ff /arch/x86/kernel/amd_iommu.c
parentb7cc9554bc73641c9ed4d7eb74b2d6e78f20abea (diff)
downloadop-kernel-dev-8638c4914f34fedc1c13b1cc13f6d1e5a78c46b4.zip
op-kernel-dev-8638c4914f34fedc1c13b1cc13f6d1e5a78c46b4.tar.gz
x86/amd-iommu: Fix PCI hotplug with passthrough mode
The device change notifier is initialized in the dma_ops initialization path. But this path is never executed for iommu=pt. Move the notifier initialization to IOMMU hardware init code to fix this. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/kernel/amd_iommu.c')
-rw-r--r--arch/x86/kernel/amd_iommu.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 450dd6a..a831850 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1624,6 +1624,11 @@ static struct notifier_block device_nb = {
.notifier_call = device_change_notifier,
};
+void amd_iommu_init_notifier(void)
+{
+ bus_register_notifier(&pci_bus_type, &device_nb);
+}
+
/*****************************************************************************
*
* The next functions belong to the dma_ops mapping/unmapping code.
@@ -2250,8 +2255,6 @@ int __init amd_iommu_init_dma_ops(void)
register_iommu(&amd_iommu_ops);
- bus_register_notifier(&pci_bus_type, &device_nb);
-
amd_iommu_stats_init();
return 0;
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