diff mbox series

[RFC,11/19] iommu/amd: Print access/dirty bits if supported

Message ID 20220428210933.3583-12-joao.m.martins@oracle.com (mailing list archive)
State New, archived
Headers show
Series IOMMUFD Dirty Tracking | expand

Commit Message

Joao Martins April 28, 2022, 9:09 p.m. UTC 
Print the feature, much like other kernel-supported features.

One can still probe its actual hw support via sysfs, regardless
of what the kernel does.

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
---
 drivers/iommu/amd/init.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c
index 27f2cf61d0c6..c410d127eb58 100644
--- a/drivers/iommu/amd/init.c
+++ b/drivers/iommu/amd/init.c
@@ -1936,6 +1936,10 @@  static void print_iommu_info(void)
 
 			if (iommu->features & FEATURE_GAM_VAPIC)
 				pr_cont(" GA_vAPIC");
+			if (iommu->features & FEATURE_HASUP)
+				pr_cont(" HASup");
+			if (iommu->features & FEATURE_HDSUP)
+				pr_cont(" HDSup");
 
 			pr_cont("\n");
 		}