PERFORCE change 28686 for review

[Peter Wemm]

http://perforce.freebsd.org/chv.cgi?CH=28686

Change 28686 by peter at peter_daintree on 2003/04/09 20:55:38

	create a %cs for userland

Affected files ...

.. //depot/projects/hammer/sys/x86_64/include/segments.h#14 edit
.. //depot/projects/hammer/sys/x86_64/x86_64/machdep.c#60 edit

Differences ...

==== //depot/projects/hammer/sys/x86_64/include/segments.h#14 (text+ko) ====

@@ -178,7 +178,8 @@
 #define	GDATA_SEL	2	/* Kernel Data Descriptor */
 #define	GPROC0_SEL	3	/* Task state process slot zero and up */
 /* slot 4 is second half of GPROC0_SEL */
-#define NGDT 		5
+#define	GUCODE_SEL	5	/* Kernel Code Descriptor */
+#define	NGDT 		6
 
 #ifdef _KERNEL
 extern struct user_segment_descriptor gdt[];

==== //depot/projects/hammer/sys/x86_64/x86_64/machdep.c#60 (text+ko) ====

@@ -573,7 +573,7 @@
 {	0x0,			/* segment base address  */
 	0xfffff,		/* length - all address space */
 	SDT_MEMERA,		/* segment type */
-	0,			/* segment descriptor priority level */
+	SEL_KPL,		/* segment descriptor priority level */
 	1,			/* segment descriptor present */
 	1,			/* long */
 	0,			/* default 32 vs 16 bit size */
@@ -582,7 +582,7 @@
 {	0x0,			/* segment base address  */
 	0xfffff,		/* length - all address space */
 	SDT_MEMRWA,		/* segment type */
-	0,			/* segment descriptor priority level */
+	SEL_KPL,		/* segment descriptor priority level */
 	1,			/* segment descriptor present */
 	1,			/* long */
 	1,			/* default 32 vs 16 bit size */
@@ -592,7 +592,7 @@
 	0x0,			/* segment base address */
 	sizeof(struct x86_64tss)-1,/* length - all address space */
 	SDT_SYSTSS,		/* segment type */
-	0,			/* segment descriptor priority level */
+	SEL_KPL,		/* segment descriptor priority level */
 	1,			/* segment descriptor present */
 	0,			/* long */
 	0,			/* unused - default 32 vs 16 bit size */
@@ -606,6 +606,15 @@
 	0,			/* long */
 	0,			/* default 32 vs 16 bit size */
 	0  			/* limit granularity (byte/page units)*/ },
+/* GUCODE_SEL	5 Code Descriptor for user */
+{	0x0,			/* segment base address  */
+	0xfffff,		/* length - all address space */
+	SDT_MEMERA,		/* segment type */
+	SEL_UPL,		/* segment descriptor priority level */
+	1,			/* segment descriptor present */
+	1,			/* long */
+	0,			/* default 32 vs 16 bit size */
+	1  			/* limit granularity (byte/page units)*/ },
 };
 
 void