diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index 7693699..009a268 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -31,6 +31,8 @@
 	SBI_EXT_DBCN = 0x4442434E,
 	SBI_EXT_SUSP = 0x53555350,
 	SBI_EXT_CPPC = 0x43505043,
+	SBI_EXT_NACL = 0x4E41434C,
+	SBI_EXT_STA = 0x535441,
 };
 
 enum sbi_ext_base_fid {
diff --git a/cmd/riscv/sbi.c b/cmd/riscv/sbi.c
index c4707fe..32761c5 100644
--- a/cmd/riscv/sbi.c
+++ b/cmd/riscv/sbi.c
@@ -27,6 +27,8 @@
 	{ 4, "RustSBI" },
 	{ 5, "Diosix" },
 	{ 6, "Coffer" },
+	{ 7, "Xen Project" },
+	{ 8, "PolarFire Hart Software Services" },
 };
 
 static struct sbi_ext extensions[] = {
@@ -49,6 +51,8 @@
 	{ SBI_EXT_DBCN,			      "Debug Console Extension" },
 	{ SBI_EXT_SUSP,			      "System Suspend Extension" },
 	{ SBI_EXT_CPPC,			      "Collaborative Processor Performance Control Extension" },
+	{ SBI_EXT_NACL,			      "Nested Acceleration Extension" },
+	{ SBI_EXT_STA,			      "Steal-time Accounting Extension" },
 };
 
 static int do_sbi(struct cmd_tbl *cmdtp, int flag, int argc,