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

[Julien Grall <julien@xxxxxxx>]

From: Julien Grall <jgrall@xxxxxxxxxx>

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@xxxxxxxxxx>

---

Cc: Bertrand Marquis <Bertrand.Marquis@xxxxxxx>
---
 SUPPORT.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/SUPPORT.md b/SUPPORT.md
index 25987ec1dfb6..f35943a432f7 100644
--- 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: Supported, not security supported
 
 ### ARM/GICv3 ITS
-- 
2.17.1