From 751e77e06ec147046b4eae76777dc2e22774aee0 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 10 Jul 2015 13:37:00 +0200
Subject: enable caches at startup

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 cstart.S | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'cstart.S')

diff --git a/cstart.S b/cstart.S
index a92f1c1..9f2a269 100644
--- a/cstart.S
+++ b/cstart.S
@@ -11,7 +11,8 @@ ENTRY(pm_entry)
 	mov $0x7c00, %sp
 
         mov %cr0, %eax
-        or $1, %eax
+        and $~((1 << 30) | (1 << 29)), %eax   # clear CD and NW
+        or $1, %al
         mov %eax, %cr0
         lgdtl %cs:0xff80 + gdt32_descr - pm_entry
         ljmpl $8, $0xffffff80 + 2f - pm_entry
-- 
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