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When SmePMP is enabled, clearing firmware PMP entries during a domain context switch can temporarily revoke access to OpenSBI’s own code and data, leading to faults. Keep firmware PMP entries enabled across switches so firmware regions remain accessible and executable. Signed-off-by: Yu-Chien Peter Lin <peter.lin@sifive.com> Reviewed-by: Anup Patel <anup@brainfault.org> Link: https://lore.kernel.org/r/20251008084444.3525615-9-peter.lin@sifive.com Signed-off-by: Anup Patel <anup@brainfault.org>