From 4dc0001b09477c20856ece363ecf50346e7ddddb Mon Sep 17 00:00:00 2001 From: Anup Patel <anup.patel@wdc.com> Date: Fri, 9 Apr 2021 10:01:11 +0530 Subject: lib: sbi: Add sbi_domain_root_add_memregion() API We should allow platform support to add more root memory regions before domains are finalized. This will help platform support to protect critical M-mode only resources. This patch adds sbi_domain_root_add_memregion() API for above described purpose. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Xiang W <wxjstz@126.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> --- include/sbi/sbi_domain.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include') diff --git a/include/sbi/sbi_domain.h b/include/sbi/sbi_domain.h index f9f4f7d..84d17da 100644 --- a/include/sbi/sbi_domain.h +++ b/include/sbi/sbi_domain.h @@ -170,6 +170,14 @@ void sbi_domain_dump_all(const char *suffix); int sbi_domain_register(struct sbi_domain *dom, const struct sbi_hartmask *assign_mask); +/** + * Add a memory region to the root domain + * @param reg pointer to the memory region to be added + * + * @return 0 on success and negative error code on failure + */ +int sbi_domain_root_add_memregion(const struct sbi_domain_memregion *reg); + /** Finalize domain tables and startup non-root domains */ int sbi_domain_finalize(struct sbi_scratch *scratch, u32 cold_hartid); -- cgit v1.2.3