[PATCH RFC 0/1] Support unknown NMI based on SSE

From: Yunhui Cui

Date: Fri Sep 19 2025 - 03:01:21 EST


This patch is based on the SSE features by Clément Léger:
https://lore.kernel.org/all/20250908181717.1997461-1-cleger@xxxxxxxxxxxx/

It mainly adds support for unknown NMI functionality. Since extension
development has not yet been implemented in SBI, an RFC version is
submitted first.

Yunhui Cui (1):
drivers: firmware: riscv: add unknown NMI support

arch/riscv/include/asm/sbi.h | 1 +
drivers/firmware/riscv/Kconfig | 10 +++++
drivers/firmware/riscv/Makefile | 1 +
drivers/firmware/riscv/sse_nmi.c | 77 ++++++++++++++++++++++++++++++++
4 files changed, 89 insertions(+)
create mode 100644 drivers/firmware/riscv/sse_nmi.c

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2.39.5