9723 provide support for VMM's GDT handling
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Patrick Mooney <patrick.mooney@joyent.com>

@@ -11,39 +11,24 @@
 
 /*
  * Copyright 2018 Joyent, Inc.
  */
 
-#if !defined(__lint)
-        .file   "unix_sup.s"
-#endif /* __lint */
-
 /*
  * Support routines for the unix kmdb module
  */
 
-#include <sys/asm_linkage.h>
-
 #if defined(__lint)
 
 #include <sys/types.h>
 
-ulong_t
-kmdb_unix_getcr0(void)
-{ return (0); }
+#else
 
-ulong_t
-kmdb_unix_getcr3(void)
-{ return (0); }
+#include <sys/asm_linkage.h>
 
-ulong_t
-kmdb_unix_getcr4(void)
-{ return (0); }
+        .file   "unix_sup.s"
 
-#else   /* __lint */
-
-#if defined(__amd64)
         ENTRY(kmdb_unix_getcr0)
         movq %cr0, %rax
         ret
         SET_SIZE(kmdb_unix_getcr0)
 

@@ -60,29 +45,11 @@
         ENTRY(kmdb_unix_getcr4)
         movq %cr4, %rax
         ret
         SET_SIZE(kmdb_unix_getcr4)
 
-#elif defined (__i386)
-        ENTRY(kmdb_unix_getcr0)
-        movl %cr0, %eax
+        ENTRY(kmdb_unix_getgdtr)
+        sgdt (%rdi)
         ret
-        SET_SIZE(kmdb_unix_getcr0)
+        SET_SIZE(kmdb_unix_getgdtr)
 
-        ENTRY(kmdb_unix_getcr2)
-        movl %cr2, %eax
-        ret
-        SET_SIZE(kmdb_unix_getcr2)
-
-        ENTRY(kmdb_unix_getcr3)
-        movl %cr3, %eax
-        ret
-        SET_SIZE(kmdb_unix_getcr3)
-
-        ENTRY(kmdb_unix_getcr4)
-        movl %cr4, %eax
-        ret
-        SET_SIZE(kmdb_unix_getcr4)
-
-#endif  /* __i386 */
-
-#endif /* __lint */
+#endif /* !__lint */