[PATCH 5/6] riscv: Test for specific SBI implementation ID

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

From: Carlos Maiolino <cem@kernel.org>

Retrieve the ID from the SBI, and test it against the SBI_IMPLID enviroment
variable.

Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
---
 riscv/sbi.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/riscv/sbi.c b/riscv/sbi.c
index 8ad8f375..9daab9dc 100644
--- a/riscv/sbi.c
+++ b/riscv/sbi.c
@@ -54,6 +54,16 @@ static void check_base(void)
 	}
 	report_prefix_pop();
 
+	report_prefix_push("sbi_impl_id");
+	if (env_is_defined("SBI_IMPLID")) {
+		ret = sbi_ecall(SBI_EXT_BASE, SBI_EXT_BASE_GET_IMP_ID,
+				SBI_EXT_BASE, 0, 0, 0, 0, 0);
+		expected = strtol(getenv("SBI_IMPLID"), NULL, 0);
+
+		gen_report(&ret, expected);
+	}
+	report_prefix_pop();
+
 	report_prefix_push("probe_ext");
 	if (env_is_defined("PROBE_EXT")) {
 		expected = strtol(getenv("PROBE_EXT"), NULL, 0);
-- 
2.43.2