From: Lu Baolu baolu.lu@linux.intel.com
[ Upstream commit 2c13012e09190174614fd6901857a1b8c199e17d ]
We will use a global static identity domain. Reserve a static domain ID for it.
Signed-off-by: Lu Baolu baolu.lu@linux.intel.com Reviewed-by: Jason Gunthorpe jgg@nvidia.com Reviewed-by: Kevin Tian kevin.tian@intel.com Reviewed-by: Jerry Snitselaar jsnitsel@redhat.com Link: https://lore.kernel.org/r/20240809055431.36513-4-baolu.lu@linux.intel.com Signed-off-by: Joerg Roedel jroedel@suse.de Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/iommu/intel/iommu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index e9bea0305c268..eed67326976d3 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -1462,10 +1462,10 @@ static int iommu_init_domains(struct intel_iommu *iommu) * entry for first-level or pass-through translation modes should * be programmed with a domain id different from those used for * second-level or nested translation. We reserve a domain id for - * this purpose. + * this purpose. This domain id is also used for identity domain + * in legacy mode. */ - if (sm_supported(iommu)) - set_bit(FLPT_DEFAULT_DID, iommu->domain_ids); + set_bit(FLPT_DEFAULT_DID, iommu->domain_ids);
return 0; }