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From: Yu-Chien Peter Lin <peter.lin@sifive.com>
To: opensbi@lists.infradead.org
Cc: zong.li@sifive.com, greentime.hu@sifive.com, wxjstz@126.com,
	alvinga@andestech.com, anup@brainfault.org,
	Yu-Chien Peter Lin <peter.lin@sifive.com>
Subject: [PATCH v2 5/8] lib: sbi_domain: add SBI_DOMAIN_MEMREGION_FW memregion flag
Date: Wed,  8 Oct 2025 16:44:41 +0800	[thread overview]
Message-ID: <20251008084444.3525615-6-peter.lin@sifive.com> (raw)
In-Reply-To: <20251008084444.3525615-1-peter.lin@sifive.com>

Add a new memregion flag, SBI_DOMAIN_MEMREGION_FW and mark the
OpenSBI code and data regions.

Signed-off-by: Yu-Chien Peter Lin <peter.lin@sifive.com>
---
 include/sbi/sbi_domain.h | 1 +
 lib/sbi/sbi_domain.c     | 8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/sbi/sbi_domain.h b/include/sbi/sbi_domain.h
index a6ee553b..9193feb0 100644
--- a/include/sbi/sbi_domain.h
+++ b/include/sbi/sbi_domain.h
@@ -157,6 +157,7 @@ struct sbi_domain_memregion {
 				 SBI_DOMAIN_MEMREGION_M_EXECUTABLE)
 
 #define SBI_DOMAIN_MEMREGION_MMIO		(1UL << 31)
+#define SBI_DOMAIN_MEMREGION_FW			(1UL << 30)
 	unsigned long flags;
 };
 
diff --git a/lib/sbi/sbi_domain.c b/lib/sbi/sbi_domain.c
index 798e68b3..968fe61b 100644
--- a/lib/sbi/sbi_domain.c
+++ b/lib/sbi/sbi_domain.c
@@ -540,6 +540,8 @@ void sbi_domain_dump(const struct sbi_domain *dom, const char *suffix)
 		sbi_printf("M: ");
 		if (reg->flags & SBI_DOMAIN_MEMREGION_MMIO)
 			sbi_printf("%cI", (k++) ? ',' : '(');
+		if (reg->flags & SBI_DOMAIN_MEMREGION_FW)
+			sbi_printf("%cF", (k++) ? ',' : '(');
 		if (reg->flags & SBI_DOMAIN_MEMREGION_M_READABLE)
 			sbi_printf("%cR", (k++) ? ',' : '(');
 		if (reg->flags & SBI_DOMAIN_MEMREGION_M_WRITABLE)
@@ -893,13 +895,15 @@ int sbi_domain_init(struct sbi_scratch *scratch, u32 cold_hartid)
 	/* Root domain firmware memory region */
 	sbi_domain_memregion_init(scratch->fw_start, scratch->fw_rw_offset,
 				  (SBI_DOMAIN_MEMREGION_M_READABLE |
-				   SBI_DOMAIN_MEMREGION_M_EXECUTABLE),
+				   SBI_DOMAIN_MEMREGION_M_EXECUTABLE |
+				   SBI_DOMAIN_MEMREGION_FW),
 				  &root_memregs[root_memregs_count++]);
 
 	sbi_domain_memregion_init((scratch->fw_start + scratch->fw_rw_offset),
 				  (scratch->fw_size - scratch->fw_rw_offset),
 				  (SBI_DOMAIN_MEMREGION_M_READABLE |
-				   SBI_DOMAIN_MEMREGION_M_WRITABLE),
+				   SBI_DOMAIN_MEMREGION_M_WRITABLE |
+				   SBI_DOMAIN_MEMREGION_FW),
 				  &root_memregs[root_memregs_count++]);
 
 	root.fw_region_inited = true;
-- 
2.48.0


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  parent reply	other threads:[~2025-10-08  8:45 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-08  8:44 [PATCH v2 0/8] SmePMP bugfixes and improvement Yu-Chien Peter Lin
2025-10-08  8:44 ` [PATCH v2 1/8] lib: sbi_hart: move sbi_hart_get_smepmp_flags() to sbi_domain Yu-Chien Peter Lin
2025-11-02 10:27   ` Anup Patel
2025-10-08  8:44 ` [PATCH v2 2/8] lib: sbi_domain: allow specifying inaccessible region Yu-Chien Peter Lin
2025-11-02 10:32   ` Anup Patel
2025-10-08  8:44 ` [PATCH v2 3/8] lib: sbi_domain: print unsupported SmePMP permissions Yu-Chien Peter Lin
2025-11-02 10:40   ` Anup Patel
2025-10-08  8:44 ` [PATCH v2 4/8] lib: sbi_hart: return error when insufficient PMP entries available Yu-Chien Peter Lin
2025-11-02 10:55   ` Anup Patel
2025-10-08  8:44 ` Yu-Chien Peter Lin [this message]
2025-11-02 10:55   ` [PATCH v2 5/8] lib: sbi_domain: add SBI_DOMAIN_MEMREGION_FW memregion flag Anup Patel
2025-10-08  8:44 ` [PATCH v2 6/8] lib: sbi_domain: ensure consistent firmware PMP entries Yu-Chien Peter Lin
2025-11-02 11:04   ` Anup Patel
2025-10-08  8:44 ` [PATCH v2 7/8] lib: sbi: sbi_hart: track firmware PMP entries when configuring SmePMP Yu-Chien Peter Lin
2025-11-02 11:28   ` Anup Patel
2025-10-08  8:44 ` [PATCH v2 8/8] lib: sbi_domain_context: preserve firmware PMP entries during domain context switch Yu-Chien Peter Lin
2025-11-02 11:41   ` Anup Patel
2025-11-02 12:29 ` [PATCH v2 0/8] SmePMP bugfixes and improvement Anup Patel

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