From 18be07289f8cfc733097c2f759676fbcacd7db1e Mon Sep 17 00:00:00 2001
From: Gabe Black <gblack@eecs.umich.edu>
Date: Mon, 30 Jul 2007 13:29:33 -0700
Subject: X86: Implement a stub CPUID function which is hardcode to return
 certain values.

--HG--
extra : convert_revision : 4085e04fd13e834646106faa55726d07d9631f42
---
 src/arch/x86/isa/insts/processor_information.py | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/arch/x86/isa/insts/processor_information.py b/src/arch/x86/isa/insts/processor_information.py
index b9c8a407e..f7ef4db98 100644
--- a/src/arch/x86/isa/insts/processor_information.py
+++ b/src/arch/x86/isa/insts/processor_information.py
@@ -53,7 +53,20 @@
 #
 # Authors: Gabe Black
 
-microcode = ""
+microcode = '''
+def macroop CPUID_R {
+    #
+    # For now, the CPUID function number will be hard wired to 0x8000_0000.
+    # Getting it to work more robustly will likely require microcode branching
+    # which probably doesn't work at the moment.
+    #
+
+    limm rax, 0x80000018, dataSize=4
+    limm rbx, 0x68747541, dataSize=4
+    limm rdx, 0x69746e65, dataSize=4
+    limm rcx, 0x444d4163, dataSize=4
+};
+'''
 #let {{
 #    class CPUID(Inst):
 #	"GenFault ${new UnimpInstFault}"
-- 
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