[PATCH 3/6] riscv: Implement test for architecture ID register

[cem@kernel.org <cem@kernel.org>]

From: Carlos Maiolino <cem@kernel.org>

Probe the MARCHID register and compare it to the specified MARCHID environment
variable

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
---
 riscv/sbi.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/riscv/sbi.c b/riscv/sbi.c
index 636f907a..fa28d7c8 100644
--- a/riscv/sbi.c
+++ b/riscv/sbi.c
@@ -60,6 +60,17 @@ static void check_base(void)
 	}
 	report_prefix_pop();
 
+	report_prefix_push("marchid");
+	if (env_is_defined("MARCHID")) {
+		expected = strtol(getenv("MARCHID"), NULL, 0);
+
+		ret = sbi_ecall(SBI_EXT_BASE, SBI_EXT_BASE_PROBE_EXT,
+				SBI_EXT_BASE_GET_MARCHID, 0, 0, 0, 0, 0);
+
+		gen_report(&ret, expected);
+	}
+	report_prefix_pop();
+
 	report_prefix_pop();
 }
 
-- 
2.43.2