X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Farch%2Fx86%2Fdesctab.asm;h=8c7d320eba90201412fb483ab031b82a5741816e;hb=a20cfd571f504f5c7f2d29516442a12c200441d5;hp=fa7b84b239f31f778e5002706ad622e01be1e580;hpb=2ffc5de855d609cf0486c3dad331621341e48175;p=tpg%2Facess2.git

diff --git a/Kernel/arch/x86/desctab.asm b/Kernel/arch/x86/desctab.asm
index fa7b84b2..8c7d320e 100644
--- a/Kernel/arch/x86/desctab.asm
+++ b/Kernel/arch/x86/desctab.asm
@@ -3,30 +3,8 @@
 ; desctab.asm
 [BITS 32]
 
-%if USE_MP
-MAX_CPUS	equ	8
-%else
-MAX_CPUS	equ	1
-%endif
-GDT_SIZE	equ	(1+2*2+1+MAX_CPUS)*8
 
 [section .data]
-; GDT
-[global gGDT]
-gGDT:
-	; PL0 - Kernel
-	; PL3 - User
-	dd 0x00000000, 0x00000000	; 00 NULL Entry
-	dd 0x0000FFFF, 0x00CF9A00	; 08 PL0 Code
-	dd 0x0000FFFF, 0x00CF9200	; 10 PL0 Data
-	dd 0x0000FFFF, 0x00CFFA00	; 18 PL3 Code
-	dd 0x0000FFFF, 0x00CFF200	; 20 PL3 Data
-	dd 26*4-1, 0x00408900	; 28 Double Fault TSS
-	times MAX_CPUS	dd 26*4-1, 0x00408900	; 30+ TSSes
-[global gGDTPtr]
-gGDTPtr:
-	dw	GDT_SIZE-1
-	dd	gGDT
 ; IDT
 ALIGN 8
 [global gIDT]
@@ -42,17 +20,6 @@ gIDTPtr:
 
 [global Desctab_Install]
 Desctab_Install:
-	; Set GDT
-	lgdt [gGDTPtr]
-	mov ax, 0x10	; PL0 Data
-	mov ss, ax
-	mov ds, ax
-	mov es, ax
-	mov gs, ax
-	mov fs, ax
-	jmp 0x08:.pl0code
-.pl0code:
-
 	; Set up IDT
 	; Helper Macros
 	; - Set an IDT entry to an ISR
@@ -89,6 +56,7 @@ Desctab_Install:
 	
 	; MP ISRs
 	%if USE_MP
+	SETISR	0xED	; 0xED Inter-processor HALT
 	SETISR	0xEE	; 0xEE Timer
 	SETISR	0xEF	; 0xEF Spurious Interrupt
 	%endif
@@ -206,12 +174,21 @@ ISR_NOERR	31; 31: Reserved
 DEF_SYSCALL	0xAC	; Acess System Call
 
 %if USE_MP
+[global Isr0xED]
+; 0xED - Interprocessor HALT
+Isr0xED:
+	cli
+.jmp:	hlt
+	jmp .jmp
+
 [global Isr0xEE]
 [extern SchedulerBase]
 ; AP's Timer Interrupt
 Isr0xEE:
-	push 0	; Line up with interrupt number
-	xchg bx, bx	; MAGIC BREAK
+	push eax	; Line up with interrupt number
+	mov eax, dr1	; CPU Number
+	push eax
+	mov eax, [esp-4]	; Load EAX back
 	jmp SchedulerBase
 ; Spurious Interrupt
 [global Isr0xEF]