diff options
| author | Lu Baolu <baolu.lu@linux.intel.com> | 2020-01-02 08:18:02 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-01-07 14:05:57 +0100 |
| commit | 046182525db611964da0db113dde9d3a2969085c (patch) | |
| tree | b9cfcd1f9d6abf3e8f9ee661a462022af4f0cd9f /drivers/iommu/intel-iommu.c | |
| parent | 46cf053efec6a3a5f343fead837777efe8252a46 (diff) | |
iommu/vt-d: Add Kconfig option to enable/disable scalable mode
This adds Kconfig option INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON
to make it easier for distributions to enable or disable the
Intel IOMMU scalable mode by default during kernel build.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel-iommu.c')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 42966611a192..26c40134817e 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -355,9 +355,14 @@ static phys_addr_t intel_iommu_iova_to_phys(struct iommu_domain *domain, int dmar_disabled = 0; #else int dmar_disabled = 1; -#endif /*CONFIG_INTEL_IOMMU_DEFAULT_ON*/ +#endif /* CONFIG_INTEL_IOMMU_DEFAULT_ON */ +#ifdef INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON +int intel_iommu_sm = 1; +#else int intel_iommu_sm; +#endif /* INTEL_IOMMU_SCALABLE_MODE_DEFAULT_ON */ + int intel_iommu_enabled = 0; EXPORT_SYMBOL_GPL(intel_iommu_enabled); |