SUPPORT.MD: Clarify the support state for the Arm SMMUv{1, 2} drivers

SMMUv{1, 2} are both marked as security supported, so we would
technically have to issue an XSA for any IOMMU security bug.

However, at the moment, device passthrough is not security supported
on Arm and there is no plan to change that in the next few months.

Therefore, mark Arm SMMUv{1, 2} as supported but not security supported.

Signed-off-by: Julien Grall <jgrall@amazon.com>
Reviewed-by: Bertrand Marquis <bertrand.marquis@arm.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>
(cherry picked from commit 28804c0ce9fde36feec04ad7f57b2683875da8a0)

diff --git a/SUPPORT.md b/SUPPORT.md
index 3e2c8be75eb93c5ff3808963f2d86b6c20a231d2..3b7a1a0a1ad677a0f9084e466692a93fbef02836 100644 (file)
--- a/SUPPORT.md
+++ b/SUPPORT.md
@@ -62,8 +62,8 @@ supported in this document.
 
     Status, AMD IOMMU: Supported
     Status, Intel VT-d: Supported
-    Status, ARM SMMUv1: Supported
-    Status, ARM SMMUv2: Supported
+    Status, ARM SMMUv1: Supported, not security supported
+    Status, ARM SMMUv2: Supported, not security supported
     Status, Renesas IPMMU-VMSA: Tech Preview
 
 ### ARM/GICv3 ITS