From 0706ac0f860896a73299cb4d2de50a9216e2f5bb Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Thu, 21 Apr 2022 08:17:18 -0700 Subject: target/nios2: Enable unaligned traps for system mode Unaligned traps are optional, but required with an mmu. Turn them on always, because the fallback behaviour undefined. Enable alignment checks in the config file. Unwind the guest pc properly from do_unaligned_access. Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-Id: <20220421151735.31996-48-richard.henderson@linaro.org> --- target/nios2/helper.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'target') diff --git a/target/nios2/helper.c b/target/nios2/helper.c index c5a2dd65b1..2e9fea4a01 100644 --- a/target/nios2/helper.c +++ b/target/nios2/helper.c @@ -241,8 +241,8 @@ void nios2_cpu_do_unaligned_access(CPUState *cs, vaddr addr, CPUNios2State *env = &cpu->env; env->ctrl[CR_BADADDR] = addr; - env->ctrl[CR_EXCEPTION] = FIELD_DP32(0, CR_EXCEPTION, CAUSE, EXCP_UNALIGN); - helper_raise_exception(env, EXCP_UNALIGN); + cs->exception_index = EXCP_UNALIGN; + cpu_loop_exit_restore(cs, retaddr); } bool nios2_cpu_tlb_fill(CPUState *cs, vaddr address, int size, -- cgit v1.2.3