[PATCH 2/4] lib: sbi: Add domains_init to sbi_console_device

[Xiang W]

To initialize the console before the domain is initialized, an
interface needs to be reserved for adding the mem region to the
root domain after the console is initialized.

Signed-off-by: Xiang W <wxjstz at 126.com>
---
 include/sbi/sbi_console.h |  3 +++
 lib/sbi/sbi_domain.c      | 10 ++++++++++
 2 files changed, 13 insertions(+)

diff --git a/include/sbi/sbi_console.h b/include/sbi/sbi_console.h
index 0979765..5c7eae7 100644
--- a/include/sbi/sbi_console.h
+++ b/include/sbi/sbi_console.h
@@ -24,6 +24,9 @@ struct sbi_console_device {
 
 	/** Read a character from the console input */
 	int (*console_getc)(void);
+
+	/* This function is used to add memregion to the root domain. */
+	int (*domains_init)(void);
 };
 
 #define __printf(a, b) __attribute__((format(printf, a, b)))
diff --git a/lib/sbi/sbi_domain.c b/lib/sbi/sbi_domain.c
index 374ac36..eb392b7 100644
--- a/lib/sbi/sbi_domain.c
+++ b/lib/sbi/sbi_domain.c
@@ -696,6 +696,16 @@ int sbi_domain_finalize(struct sbi_scratch *scratch, u32 cold_hartid)
 	struct sbi_domain *dom;
 	const struct sbi_platform *plat = sbi_platform_ptr(scratch);
 
+	/* Initialize and populate domains for the console */
+	if (sbi_console_get_device()->domains_init) {
+		rc = sbi_console_get_device()->domains_init();
+		if (rc) {
+			sbi_printf("%s: console domains_init() failed (error %d)\n",
+			   __func__, rc);
+			return rc;
+		}
+	}
+
 	/* Initialize and populate domains for the platform */
 	rc = sbi_platform_domains_init(plat);
 	if (rc) {
-- 
2.43.0