diff options
| author | Lu Baolu <baolu.lu@linux.intel.com> | 2024-09-02 10:27:13 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2024-09-02 18:14:55 +0200 |
| commit | 2c13012e09190174614fd6901857a1b8c199e17d (patch) | |
| tree | 08afc4bb6c5dd00cd9d608bd078f41731eb0dd6f /drivers/iommu/intel | |
| parent | 9e74e1b8198fd07fcbb4266771ca0f5195c71d9c (diff) | |
iommu/vt-d: Always reserve a domain ID for identity setup
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>
Diffstat (limited to 'drivers/iommu/intel')
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 723ea9f3f501..c019fb3b3e78 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -1440,10 +1440,10 @@ 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; } |