From c99b13d90456637e68ef91845a10688900f8bf48 Mon Sep 17 00:00:00 2001 From: Binh Pham Date: Fri, 18 Jul 2014 22:05:51 -0700 Subject: [PATCH] x86: make PioBus return BadAddress errors Stop setting the use_default_range flag in PioBus in order to have random bad addresses result in a BadAddress response and not a gem5 fatal error. This is necessary in Ruby as Ruby is connected directly to PioBus, so misspeculated addresses will be sent there directly. For the classic memory system, this change has no effect, as bad addresses are caught by the memory bus before being sent to the PioBus. This work was done while Binh was an intern at AMD Research. --- src/dev/x86/Pc.py | 1 - 1 file changed, 1 deletion(-) diff --git a/src/dev/x86/Pc.py b/src/dev/x86/Pc.py index bd8b2ad98..1f1f3ca89 100644 --- a/src/dev/x86/Pc.py +++ b/src/dev/x86/Pc.py @@ -79,4 +79,3 @@ class Pc(Platform): self.fake_com_4.pio = bus.master self.fake_floppy.pio = bus.master self.pciconfig.pio = bus.default - bus.use_default_range = True