From: Peter Dinda <pdinda@northwestern.edu>
Date: Mon, 11 Feb 2008 22:00:27 +0000 (+0000)
Subject: Partially working - looking at the load sector for vm kernel
X-Git-Tag: JACK-WORKING-STATIC-GEEKOS~7
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=commitdiff_plain;h=291ff6cdccbaf928d7cfd094bc67fe666f49de2c

Partially working - looking at the load sector for vm kernel
---

diff --git a/palacios/src/geekos/defs.asm b/palacios/src/geekos/defs.asm
index 0135f31..73483b6 100644
--- a/palacios/src/geekos/defs.asm
+++ b/palacios/src/geekos/defs.asm
@@ -1,6 +1,6 @@
 ; Definitions for use in GeekOS boot code
 ; Copyright (c) 2001, David H. Hovemeyer <daveho@cs.umd.edu>
-; $Revision: 1.3 $
+; $Revision: 1.4 $
 
 ; This is free software.  You are permitted to use,
 ; redistribute, and modify it as specified in the file "COPYING".
@@ -23,7 +23,7 @@ VM_KERNEL_TARGET	equ 0x100000
 	
 ; BIOS loads the boot sector at offset 0 in this segment
 BOOTSEG equ 0x07C0
-
+ 
 ; We'll move the boot sector up to higher memory.
 ; Note that the "ISA hole" begins at segment 0xA000 == 640K.
 INITSEG equ 0x9000
@@ -40,7 +40,7 @@ KERNSEG equ 0x1000
 ;; Note that this segment must not colide with where the VMM kernel
 ;; is initially loaded.  At this point, we just place it in the last
 ;; 64K of RAM available before the ISA hole and hope for the best
-VMSEG equ 0x9000		;
+VMSEG equ 0x8000		;
 
 ; Size of PFAT boot record.
 ; Keep up to date with <geekos/pfat.h>.
diff --git a/palacios/src/geekos/fd_boot.asm b/palacios/src/geekos/fd_boot.asm
index 0c0e5ec..9df0880 100644
--- a/palacios/src/geekos/fd_boot.asm
+++ b/palacios/src/geekos/fd_boot.asm
@@ -1,7 +1,7 @@
 ; Boot sector for GeekOS
 ; Copyright (c) 2001,2004 David H. Hovemeyer <daveho@cs.umd.edu>
 ; Copyright (c) 2003, Jeffrey K. Hollingsworth <hollings@cs.umd.edu>
-; $Revision: 1.3 $
+; $Revision: 1.4 $
 
 ; This is free software.  You are permitted to use,
 ; redistribute, and modify it as specified in the file "COPYING".
@@ -162,9 +162,9 @@ load_vm:
 	mov	ax, VMSEG		;  ...to get base relative to VMSEG
 	push	ax			; 2nd param to ReadSector (seg base)
 	
-	mov     dx, ax
-	call    PrintHex
-	call    PrintNL
+;	mov     dx, ax		; 
+;	call    PrintHex
+;	call    PrintNL
 
 	mov	ax, 2000h		; Always write at the start of the segment
 	push    ax              ; 3rd parameter
@@ -177,7 +177,14 @@ load_vm:
 	call	ReadSector
 	add	sp, 6			; clear 3 word params
 
+	push    9000h
+	pop     es
 
+	mov	dx, word [es:2000] ;
+	call    PrintHex
+	call    PrintNL
+	
+	
 
 ; execute bios call
 
@@ -191,6 +198,7 @@ load_vm:
 	mov     si, bootsect_gdt
 	mov     ax, 0x8700	;
 	int     0x15
+	adc     ax, 0
 
 	mov     dx, ax
 	call    PrintHex
@@ -222,8 +230,11 @@ load_vm:
 
 	mov	bx, word [max_sector]
 	cmp	word [sec_count], bx
+
+	jmp	.out 
 	jl	.again2
 
+.out:	
 	; Now we've loaded the setup code and the kernel image.
 	; Jump to setup code.
 	jmp	SETUPSEG:0
diff --git a/palacios/src/geekos/main.c b/palacios/src/geekos/main.c
index c0410c1..7066111 100644
--- a/palacios/src/geekos/main.c
+++ b/palacios/src/geekos/main.c
@@ -3,7 +3,7 @@
  * Copyright (c) 2001,2003,2004 David H. Hovemeyer <daveho@cs.umd.edu>
  * Copyright (c) 2003, Jeffrey K. Hollingsworth <hollings@cs.umd.edu>
  * Copyright (c) 2004, Iulian Neamtiu <neamtiu@cs.umd.edu>
- * $Revision: 1.4 $
+ * $Revision: 1.5 $
  * 
  * This is free software.  You are permitted to use,
  * redistribute, and modify it as specified in the file "COPYING".
@@ -283,7 +283,7 @@ void Main(struct Boot_Info* bootInfo)
   ulong_t doIBuzz = 0;
 
 
-   while(1);
+    while(1);
   
 
   Init_BSS();
@@ -320,8 +320,8 @@ void Main(struct Boot_Info* bootInfo)
 #endif
 
 #if 1
-  SerialPrint("Dumping GUEST KERNEL CODE (first 512 bytes @ 0x100000)\n");
-  SerialMemDump((unsigned char *)0x100000, 512);
+  SerialPrint("Dumping GUEST KERNEL CODE (first 512*10 bytes @ 0x100000)\n");
+  SerialMemDump((unsigned char *)0x100000, 512*10);
 #endif
 
   while(1);