]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
iommu/vt-d: Fix status code for Allocate/Free PASID command
authorZenghui Yu <yuzenghui@huawei.com>
Sat, 27 Feb 2021 07:39:09 +0000 (15:39 +0800)
committerJoerg Roedel <jroedel@suse.de>
Thu, 4 Mar 2021 12:32:04 +0000 (13:32 +0100)
commit444d66a23c1f1e4c4d12aed4812681d0ad835d60
treef627941289e91f74fd9c64a94063e3dc08f2a155
parent82c3cefb9f1652e7470f442ff96c613e8c8ed8f4
iommu/vt-d: Fix status code for Allocate/Free PASID command

As per Intel vt-d spec, Rev 3.0 (section 10.4.45 "Virtual Command Response
Register"), the status code of "No PASID available" error in response to
the Allocate PASID command is 2, not 1. The same for "Invalid PASID" error
in response to the Free PASID command.

We will otherwise see confusing kernel log under the command failure from
guest side. Fix it.

Fixes: 24f27d32ab6b ("iommu/vt-d: Enlightened PASID allocation")
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20210227073909.432-1-yuzenghui@huawei.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
drivers/iommu/intel/pasid.h