[PATCH v2 01/10] riscv: hwprobe.rst: Document EXT_ZICFISS

From: Guodong Xu

Date: Mon May 11 2026 - 09:42:35 EST


Commit 30c3099036a9 ("riscv/hwprobe: add zicfilp / zicfiss
enumeration in hwprobe") added RISCV_HWPROBE_EXT_ZICFISS as bit 0 of
RISCV_HWPROBE_KEY_IMA_EXT_1 but did not add a matching entry to
Documentation/arch/riscv/hwprobe.rst. Add it now.

Fixes: 30c3099036a9 ("riscv/hwprobe: add zicfilp / zicfiss enumeration in hwprobe")
Signed-off-by: Guodong Xu <guodong@xxxxxxxxxxxx>
---
v2: New patch.
---
Documentation/arch/riscv/hwprobe.rst | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/Documentation/arch/riscv/hwprobe.rst b/Documentation/arch/riscv/hwprobe.rst
index c420a8349bc68..b1a84ac06da75 100644
--- a/Documentation/arch/riscv/hwprobe.rst
+++ b/Documentation/arch/riscv/hwprobe.rst
@@ -391,3 +391,7 @@ The following keys are defined:
* :c:macro:`RISCV_HWPROBE_KEY_IMA_EXT_1`: A bitmask containing additional
extensions that are compatible with the
:c:macro:`RISCV_HWPROBE_BASE_BEHAVIOR_IMA`: base system behavior.
+
+ * :c:macro:`RISCV_HWPROBE_EXT_ZICFISS`: The Zicfiss extension is supported,
+ as defined in version 1.0 of the RISC-V Control-flow Integrity (CFI)
+ extensions specification, ratified 2024-07.

--
2.43.0