diff options
| author | Joerg Roedel <jroedel@suse.de> | 2015-06-12 12:27:16 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2015-06-16 10:59:34 +0200 |
| commit | 86080ccc223aabf8d0b85a504f4f06aa88e82fb3 (patch) | |
| tree | 12ecb1693240725446127943322382fc1844cc82 /drivers | |
| parent | cf484d0e6939ce287e65880ffe48860165fe5cb5 (diff) | |
iommu/vt-d: Allocate si_domain in init_dmars()
This seperates the allocation of the si_domain from its
assignment to devices. It makes sure that the iommu=pt case
still works in the kdump kernel, when we have to defer the
assignment of devices to domains to device driver
initialization time.
Tested-by: ZhenHua Li <zhen-hual@hp.com>
Tested-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index e5a03f84d2f5..b43f04933015 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -2763,10 +2763,6 @@ static int __init iommu_prepare_static_identity_mapping(int hw) int i; int ret = 0; - ret = si_domain_init(hw); - if (ret) - return -EFAULT; - for_each_pci_dev(pdev) { ret = dev_prepare_static_identity_mapping(&pdev->dev, hw); if (ret) @@ -2780,7 +2776,7 @@ static int __init iommu_prepare_static_identity_mapping(int hw) if (dev->bus != &acpi_bus_type) continue; - + adev= to_acpi_device(dev); mutex_lock(&adev->physical_node_lock); list_for_each_entry(pn, &adev->physical_node_list, node) { @@ -3114,6 +3110,12 @@ static int __init init_dmars(void) iommu_identity_mapping |= IDENTMAP_GFX; #endif + if (iommu_identity_mapping) { + ret = si_domain_init(hw_pass_through); + if (ret) + goto free_iommu; + } + check_tylersburg_isoch(); /* |