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afa0e3091b
When redirecting an exception to S-mode, transform the (v)stvec CSR value as described in the privileged spec to derive the S-mode PC. Since OpenSBI never redirects interrupts, only synchronous exceptions, the only action needed is to mask out the (v)stvec.MODE field. Reported-by: Jan Reinhard <jan.reinhard@sysgo.com> Closes: https://github.com/riscv-software-src/opensbi/issues/391 Signed-off-by: Samuel Holland <samuel.holland@sifive.com> Reviwed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20250305014729.3143535-1-samuel.holland@sifive.com Signed-off-by: Anup Patel <anup@brainfault.org>