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[RFC,v4,2/4] riscv: Add Smsdid and Smmpt hart extensions

Message ID 20260824020953.2438946-3-rahul.pathak@oss.qualcomm.com
State New
Headers show
Series Add Smsdid and Smmpt supervisor domain protection | expand

Commit Message

Rahul Pathak Aug. 24, 2026, 2:09 a.m. UTC 
Add hart extension identifiers for the RISC-V Smsdid (supervisor
domain ID) and Smmpt (supervisor domain memory protection) extensions.

Signed-off-by: Rahul Pathak <rahul.pathak@oss.qualcomm.com>
Reviewed-by: Pawandeep Oza <pawandeep.oza@oss.qualcomm.com>
Reviewed-by: Ranbir Singh <ranbir.singh@oss.qualcomm.com>
---
 include/sbi/sbi_hart.h | 4 ++++
 lib/sbi/sbi_hart.c     | 2 ++
 2 files changed, 6 insertions(+)
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Patch

diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h
index 543393bb..cbad94d4 100644
--- a/include/sbi/sbi_hart.h
+++ b/include/sbi/sbi_hart.h
@@ -95,6 +95,10 @@  enum sbi_hart_extensions {
 	SBI_HART_EXT_F,
 	/** Hart has D extension */
 	SBI_HART_EXT_D,
+	/** Hart has SMMTT - SMSDID extension */
+	SBI_HART_EXT_SMSDID,
+	/** Hart has SMMTT - SMMPT extension */
+	SBI_HART_EXT_SMMPT,
 
 	/** Maximum index of Hart extension */
 	SBI_HART_EXT_MAX,
diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c
index bee88557..4261fea8 100644
--- a/lib/sbi/sbi_hart.c
+++ b/lib/sbi/sbi_hart.c
@@ -360,6 +360,8 @@  const struct sbi_hart_ext_data sbi_hart_ext[] = {
 	__SBI_HART_EXT_DATA(v, SBI_HART_EXT_V),
 	__SBI_HART_EXT_DATA(f, SBI_HART_EXT_F),
 	__SBI_HART_EXT_DATA(d, SBI_HART_EXT_D),
+	__SBI_HART_EXT_DATA(smsdid, SBI_HART_EXT_SMSDID),
+	__SBI_HART_EXT_DATA(smmpt,  SBI_HART_EXT_SMMPT),
 };
 
 _Static_assert(SBI_HART_EXT_MAX == array_size(sbi_hart_ext),