This prevents guest from proceeding with uninitialised garbage returned
from unimplemented simcalls.
Signed-off-by: Max Filippov <jcmvb...@gmail.com>
---
target-xtensa/xtensa-semi.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/target-xtensa/xtensa-semi.c b/target-xtensa/xtensa-semi.c
index 1c8a19e..9afa99d 100644
--- a/target-xtensa/xtensa-semi.c
+++ b/target-xtensa/xtensa-semi.c
@@ -218,6 +218,8 @@ void HELPER(simcall)(CPUXtensaState *env)
default:
qemu_log("%s(%d): not implemented\n", __func__, regs[2]);
+ regs[2] = -1;
+ regs[3] = EINVAL;
break;
}
}
--
1.7.7.6
