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authoraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2008-04-27 21:12:55 +0000
committeraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2008-04-27 21:12:55 +0000
commit00f82b8a3166514f634c1c010c3b6175bcc6403b (patch)
tree31d41d48d7207ee9be02483f6a3c951f9075c371 /target-i386/helper.c
parentc1d00dc0b432813f29baac7ec62e4cec09949765 (diff)
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Use correct types to enable > 2G support, based on a patch from
Anthony Liguori. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4265 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'target-i386/helper.c')
-rw-r--r--target-i386/helper.c16
1 files changed, 15 insertions, 1 deletions
diff --git a/target-i386/helper.c b/target-i386/helper.c
index b2c8299..c3d307e 100644
--- a/target-i386/helper.c
+++ b/target-i386/helper.c
@@ -1747,7 +1747,21 @@ void helper_cpuid(void)
break;
case 0x80000008:
/* virtual & phys address size in low 2 bytes. */
- EAX = 0x00003028;
+/* XXX: This value must match the one used in the MMU code. */
+#if defined(TARGET_X86_64)
+# if defined(USE_KQEMU)
+ EAX = 0x00003020; /* 48 bits virtual, 32 bits physical */
+# else
+/* XXX: The physical address space is limited to 42 bits in exec.c. */
+ EAX = 0x00003028; /* 48 bits virtual, 40 bits physical */
+# endif
+#else
+# if defined(USE_KQEMU)
+ EAX = 0x00000020; /* 32 bits physical */
+# else
+ EAX = 0x00000024; /* 36 bits physical */
+# endif
+#endif
EBX = 0;
ECX = 0;
EDX = 0;