[RFC PATCH 1/5] riscv: Add Smsdid and Smmpt hart extensions
Rahul Pathak
rahul.pathak at oss.qualcomm.com
Tue Jul 21 20:34:50 PDT 2026
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 at oss.qualcomm.com>
---
include/sbi/sbi_hart.h | 5 ++++-
lib/sbi/sbi_hart.c | 2 ++
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h
index 543393bb..38aacd70 100644
--- a/include/sbi/sbi_hart.h
+++ b/include/sbi/sbi_hart.h
@@ -95,8 +95,11 @@ 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),
--
2.51.0
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