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



commit 28804c0ce9fde36feec04ad7f57b2683875da8a0
Author:     Julien Grall <jgrall@xxxxxxxxxx>
AuthorDate: Wed Sep 23 09:28:32 2020 +0100
Commit:     Julien Grall <jgrall@xxxxxxxxxx>
CommitDate: Mon Sep 28 18:44:48 2020 +0100

    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@xxxxxxxxxx>
    Reviewed-by: Bertrand Marquis <bertrand.marquis@xxxxxxx>
    Acked-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
---
 SUPPORT.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/SUPPORT.md b/SUPPORT.md
index 25987ec1df..f35943a432 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
--
generated by git-patchbot for /home/xen/git/xen.git#staging



 


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