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Message-Id: <20240927-dev-maxh-svukte-rebase-2-v2-1-9afe57c33aee@sifive.com>
Date: Fri, 27 Sep 2024 21:41:43 +0800
From: Max Hsu <max.hsu@...ive.com>
To: Conor Dooley <conor@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Anup Patel <anup@...infault.org>, Atish Patra <atishp@...shpatra.org>
Cc: Palmer Dabbelt <palmer@...ive.com>, linux-riscv@...ts.infradead.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 kvm@...r.kernel.org, kvm-riscv@...ts.infradead.org, 
 Max Hsu <max.hsu@...ive.com>, Samuel Holland <samuel.holland@...ive.com>
Subject: [PATCH RFC v2 1/3] dt-bindings: riscv: Add Svukte entry

Add an entry for the Svukte extension to the riscv,isa-extensions
property.

Reviewed-by: Samuel Holland <samuel.holland@...ive.com>
Signed-off-by: Max Hsu <max.hsu@...ive.com>
---
 Documentation/devicetree/bindings/riscv/extensions.yaml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/devicetree/bindings/riscv/extensions.yaml b/Documentation/devicetree/bindings/riscv/extensions.yaml
index 2cf2026cff574d39793157418a4d4211df87315f..9f730e3aaae949debc18396183b989b504dcb899 100644
--- a/Documentation/devicetree/bindings/riscv/extensions.yaml
+++ b/Documentation/devicetree/bindings/riscv/extensions.yaml
@@ -171,6 +171,15 @@ properties:
             memory types as ratified in the 20191213 version of the privileged
             ISA specification.
 
+        - const: svukte
+          description:
+            The standard Svukte supervisor-level extensions for making user-mode
+            accesses to supervisor memory raise page faults in constant time,
+            mitigating attacks that attempt to discover the supervisor
+            software's address-space layout. Currently under review as Pull
+            Request number 1564 at commit 81dc9277 ("Svukte v0.3") of
+            riscv-isa-manual.
+
         - const: svvptc
           description:
             The standard Svvptc supervisor-level extension for

-- 
2.43.2


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