[PATCH 1/3] lib: sbi: Don't handle VS-mode ecall in sbi_trap_handler()

Atish Patra atishp at atishpatra.org
Tue Sep 8 01:48:15 EDT 2020


On Fri, Sep 4, 2020 at 5:14 AM Anup Patel <anup.patel at wdc.com> wrote:
>
> The VS-mode ecall is supposed to be handled by HS-mode so
> sbi_trap_handler() should fallback to default case for
> VS-mode ecall trap.
>
> Signed-off-by: Anup Patel <anup.patel at wdc.com>
> ---
>  lib/sbi/sbi_trap.c | 1 -
>  1 file changed, 1 deletion(-)
>
> diff --git a/lib/sbi/sbi_trap.c b/lib/sbi/sbi_trap.c
> index c2bd061..8fe6753 100644
> --- a/lib/sbi/sbi_trap.c
> +++ b/lib/sbi/sbi_trap.c
> @@ -251,7 +251,6 @@ void sbi_trap_handler(struct sbi_trap_regs *regs)
>                 rc  = sbi_misaligned_store_handler(mtval, mtval2, mtinst, regs);
>                 msg = "misaligned store handler failed";
>                 break;
> -       case CAUSE_SUPERVISOR_ECALL:
>         case CAUSE_HYPERVISOR_ECALL:
>                 rc  = sbi_ecall_handler(regs);
>                 msg = "ecall handler failed";
> --
> 2.25.1
>
>
> --
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Reviewed-by: Atish Patra <atish.patra at wdc.com>

-- 
Regards,
Atish



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