From d5725c24c6ea04368d90bc0f5af3ec20862b4a3b Mon Sep 17 00:00:00 2001 From: Alistair Francis Date: Tue, 16 Jun 2020 17:06:15 -0700 Subject: [PATCH] lib: Don't print delegation CSRs if there is no S-Mode If the platform doesn't support S-Mode don't print the delegation registers. Signed-off-by: Alistair Francis Reviewed-by: Atish Patra Reviewed-by: Anup Patel --- lib/sbi/sbi_hart.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c index 88d0ac81..e943346b 100644 --- a/lib/sbi/sbi_hart.c +++ b/lib/sbi/sbi_hart.c @@ -122,6 +122,10 @@ static int delegate_traps(struct sbi_scratch *scratch, u32 hartid) void sbi_hart_delegation_dump(struct sbi_scratch *scratch) { + if (!misa_extension('S')) + /* No delegation possible as mideleg does not exist*/ + return; + #if __riscv_xlen == 32 sbi_printf("MIDELEG : 0x%08lx\n", csr_read(CSR_MIDELEG)); sbi_printf("MEDELEG : 0x%08lx\n", csr_read(CSR_MEDELEG));