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authorYi Liu <yi.l.liu@intel.com>2023-10-24 08:00:11 -0700
committerJason Gunthorpe <jgg@nvidia.com>2023-10-26 11:16:11 -0300
commita2cdecdf9d234455fdfc8f539bbf5818711bc29d (patch)
treecdc9e010626db90fe25ce92e549d7a710d779cb9 /tools/perf/scripts/python/exported-sql-viewer.py
parent55a01657cbee07d772b1d3cb144f867a326e4673 (diff)
iommu/vt-d: Enhance capability check for nested parent domain allocation
This adds the scalable mode check before allocating the nested parent domain as checking nested capability is not enough. User may turn off scalable mode which also means no nested support even if the hardware supports it. Fixes: c97d1b20d383 ("iommu/vt-d: Add domain_alloc_user op") Link: https://lore.kernel.org/r/20231024150011.44642-1-yi.l.liu@intel.com Signed-off-by: Yi Liu <yi.l.liu@intel.com> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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