X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/4452a7af2eac33dbad800bcc91f2399d62c18f53..5ba3f43ea354af8ad55bea84372a2bc834d8757c:/osfmk/i386/postcode.h

diff --git a/osfmk/i386/postcode.h b/osfmk/i386/postcode.h
index a9a637e6d..82a4c0849 100644
--- a/osfmk/i386/postcode.h
+++ b/osfmk/i386/postcode.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2008 Apple Computer, Inc. All rights reserved.
  *
  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
@@ -29,12 +29,15 @@
 #ifndef	_I386_POSTCODE_H_
 #define	_I386_POSTCODE_H_
 
-#ifndef DEBUG
-#include <debug.h>
-#endif
+/*
+ * Postcodes are no longer enabled by default in the DEBUG kernel
+ * because platforms may not have builtin port 0x80 support.
+ * To re-enable postcode outpout, uncomment the following define:
+ */
+//#define DEBUG_POSTCODE 1
 
 /* Define this to delay about 1 sec after posting each code */
-/* #define POSTCODE_DELAY 1 */
+//#define POSTCODE_DELAY 1
 
 /* The POSTCODE is port 0x80 */
 #define	POSTPORT 0x80
@@ -42,12 +45,11 @@
 #define	SPINCOUNT	300000000
 #define CPU_PAUSE()	rep; nop
 
-#if DEBUG
+#if DEBUG_POSTCODE
 /*
  * Macro to output byte value to postcode, destoying register al.
  * Additionally, if POSTCODE_DELAY, spin for about a second.
  */
-
 #if POSTCODE_DELAY
 #define POSTCODE_AL			\
         outb    %al,$(POSTPORT);	\
@@ -56,15 +58,28 @@
 	CPU_PAUSE();			\
 	decl	%eax;			\
 	jne	1b
+#define POSTCODE_AX			\
+        outw    %ax,$(POSTPORT);	\
+	movl	$(SPINCOUNT), %eax;	\
+1:					\
+	CPU_PAUSE();			\
+	decl	%eax;			\
+	jne	1b
 #else
 #define POSTCODE_AL			\
         outb    %al,$(POSTPORT)
+#define POSTCODE_AX			\
+        outw    %ax,$(POSTPORT)
 #endif /* POSTCODE_DELAY */
 
 #define POSTCODE(XX)			\
 	mov	$(XX), %al;		\
 	POSTCODE_AL
 
+#define POSTCODE2(XXXX)			\
+	mov	$(XXXX), %ax;		\
+	POSTCODE_AX
+
 /* Output byte value to postcode, without destoying register eax */ 
 #define	POSTCODE_SAVE_EAX(XX)		\
 	push	%eax;			\
@@ -93,60 +108,59 @@
 	movl	%ebx, %eax;		\
 	POSTCODE_AL
 
-#else	/* DEBUG */
+#else	/* DEBUG_POSTCODE */
 #define POSTCODE_AL
+#define POSTCODE_AX
 #define POSTCODE(X)
+#define POSTCODE2(X)
+#define POSTCODE_SAVE_EAX(X)
 #define POSTCODE32_EBX
-#endif	/* DEBUG */
+#endif	/* DEBUG_POSTCODE */
 
 /*
  * The following postcodes are defined for stages of early startup:
  */
 
-#define	_PSTART_ENTRY			0xFF
-#define	_PSTART_RELOC			0xFE
-#define	PSTART_ENTRY			0xFD
-#define PSTART_PAGE_TABLES		0xFC
-#define PSTART_BEFORE_PAGING		0xFB
-#define VSTART_ENTRY			0xFA
-#define VSTART_STACK_SWITCH		0xF9
-#define VSTART_EXIT			0xF8
-#define	I386_INIT_ENTRY			0xF7
-#define	CPU_INIT_D			0xF6
-#define	PE_INIT_PLATFORM_D		0xF5
-
-#define	SLAVE_RSTART_ENTRY		0xEF
-#define	SLAVE_REAL_TO_PROT_ENTRY	0xEE
-#define	SLAVE_REAL_TO_PROT_EXIT		0xED
-#define	SLAVE_STARTPROG_ENTRY		0xEC
-#define	SLAVE_STARTPROG_EXIT		0xEB
-#define	SLAVE_PSTART_ENTRY		0xEA
-#define	SLAVE_PSTART_EXIT		0xE9
-#define	SLAVE_VSTART_ENTRY		0xE8
-#define	SLAVE_VSTART_DESC_INIT		0xE7
-#define	SLAVE_VSTART_STACK_SWITCH	0xE6
-#define	SLAVE_VSTART_EXIT		0xE5
-#define	I386_INIT_SLAVE			0xE4
+#define	PSTART_ENTRY			0xFF
+#define PSTART_REBASE			0xFE
+#define PSTART_BEFORE_PAGING		0xFE
+#define	PSTART_VSTART			0xFD
+#define VSTART_ENTRY			0xFC
+#define VSTART_IDT_INIT			0xFB
+#define VSTART_IDLE_PTS_INIT		0xFA
+#define VSTART_PHYSMAP_INIT		0xF9
+#define VSTART_DESC_ALIAS_INIT		0xF8
+#define VSTART_SET_CR3			0xF7
+#define VSTART_CPU_DESC_INIT		0xF6
+#define VSTART_CPU_MODE_INIT		0xF5
+#define VSTART_EXIT			0xF4
+#define	I386_INIT_ENTRY			0xF3
+#define	CPU_INIT_D			0xF2
+#define	PE_INIT_PLATFORM_D		0xF1
+
+#define	SLAVE_STARTPROG_ENTRY		0xEF
+#define	SLAVE_PSTART			0xEE
+#define	I386_INIT_SLAVE			0xED
 
 #define	PANIC_DOUBLE_FAULT		0xDF	/* Double Fault exception */
-#define	PANIC_MACHINE_CHECK		0xDE	/* Machine-Check */
-#define	MP_KDP_ENTER			0xDB	/* Machine in kdp DeBugger */
+#define	PANIC_MACHINE_CHECK		0xDC	/* Machine-Check */
+#define	MP_KDP_ENTER			0xDB	/* Debugger Begin */
+#define	MP_KDP_EXIT			0xDE	/* Debugger End */
 #define	PANIC_HLT			0xD1	/* Die an early death */ 
-#define	NO_64BIT			0x64	/* No 64-bit support yet */
+#define	BOOT_TRAP_HLT			0xD0	/* D'oh! even earlier */ 
 
 #define ACPI_WAKE_START_ENTRY		0xCF
 #define ACPI_WAKE_PROT_ENTRY		0xCE
 #define ACPI_WAKE_PAGED_ENTRY		0xCD
 
-#define	CPU_IA32_ENABLE_ENTRY		0xBF
-#define	CPU_IA32_ENABLE_EXIT		0xBE
-#define ML_LOAD_DESC64_ENTRY		0xBD
-#define ML_LOAD_DESC64_GDT		0xBC
-#define ML_LOAD_DESC64_IDT		0xBB
-#define ML_LOAD_DESC64_LDT		0xBA
-#define ML_LOAD_DESC64_EXIT		0xB9
-#define	CPU_IA32_DISABLE_ENTRY		0xB8
-#define	CPU_IA32_DISABLE_EXIT		0xB7
+#define CPU_DESC_LOAD_ENTRY		0xBF
+#define CPU_DESC_LOAD_GS_BASE		0xBE
+#define CPU_DESC_LOAD_KERNEL_GS_BASE	0xBD
+#define CPU_DESC_LOAD_GDT		0xBC
+#define CPU_DESC_LOAD_IDT		0xBB
+#define CPU_DESC_LOAD_LDT		0xBA
+#define CPU_DESC_LOAD_TSS		0xB9
+#define CPU_DESC_LOAD_EXIT		0xB7
 
 #ifndef ASSEMBLER
 inline static void
@@ -163,7 +177,12 @@ _postcode(uint8_t	xx)
 {
 	asm volatile("outb %0, %1" : : "a" (xx), "N" (POSTPORT));
 }
-#if	DEBUG
+inline static void
+_postcode2(uint16_t	xxxx)
+{
+	asm volatile("outw %0, %1" : : "a" (xxxx), "N" (POSTPORT));
+}
+#if	DEBUG_POSTCODE
 inline static void
 postcode(uint8_t	xx)
 {
@@ -172,8 +191,17 @@ postcode(uint8_t	xx)
 	_postcode_delay(SPINCOUNT);
 #endif
 }
+inline static void
+postcode2(uint8_t	xxxx)
+{
+	_postcode2(xxxx);
+#if	POSTCODE_DELAY
+	_postcode_delay(SPINCOUNT);
+#endif
+}
 #else
-#define postcode(xx)
+#define postcode(xx) do {} while(0)
+#define postcode2(xxxx) do {} while(0)
 #endif
 #endif