[coreboot] ADLO for buildrom
Jordan Crouse
jordan.crouse at amd.com
Wed Apr 30 18:07:32 CEST 2008
I don't know what the history of the ADLO code is - any reason why we can't
give it a home in payloads/ on SVN instead of living in the buildrom
code?
Jordan
On 30/04/08 09:58 -0600, Myles Watson wrote:
> This patch adds ADLO to buildrom using the gcc ported BOCHS BIOS. It
> boots Windows XP in QEMU. It still needs as86 to be installed because
> I didn't port the loader yet. Other things like making the loader
> understand the coreboot information to get the RAM map would be nice
> too.
>
> I'm attaching the ELF headers, since svn diff doesn't include binary files.
>
> Signed-off-by: Myles Watson <mylesgw at gmail.com>
>
> Thanks,
> Myles
> Index: config/payloads/payloads.conf
> ===================================================================
> --- config/payloads/payloads.conf (revision 170)
> +++ config/payloads/payloads.conf (working copy)
> @@ -16,6 +16,7 @@
> ### Include the correct payload configuration
>
> PCONF-y=
> +PCONF-$(CONFIG_PAYLOAD_ADLO) = adlo.conf
> PCONF-$(CONFIG_PAYLOAD_LAB) = lab.conf
> PCONF-$(CONFIG_PAYLOAD_ETHERBOOT) = etherboot.conf
> PCONF-$(CONFIG_PAYLOAD_GPXE) = gpxe.conf
> @@ -28,6 +29,10 @@
> PCONF-$(CONFIG_PAYLOAD_TINT) = tint.conf
> PCONF-$(CONFIG_PAYLOAD_GRUB2) = grub2.conf
>
> +ifeq ($(PCONF-y),)
> +$(error No payload .conf file specified.)
> +endif
> +
> DEPENDS-y=
> include $(CONFIG_DIR)/payloads/$(PCONF-y)
>
> Index: config/payloads/adlo.conf
> ===================================================================
> --- config/payloads/adlo.conf (revision 0)
> +++ config/payloads/adlo.conf (revision 0)
> @@ -0,0 +1,15 @@
> +# Configuration file for the ADLO payload
> +
> +# Common configuration options
> +
> +PAYLOAD_BUILD=scripts/Makefile.generic
> +
> +PAYLOAD_ELF=$(OUTPUT_DIR)/adlo-payload.elf
> +PAYLOAD_COMPRESSED=$(OUTPUT_DIR)/adlo-payload.elf.lzma
> +
> +PAYLOAD=adlo
> +PAYLOAD-y=adlo
> +
> +# Add legacybios as a dependency
> +PAYLOAD_AND_DEP_MK=$(PACKAGE_DIR)/legacybios/legacybios.mk $(PACKAGE_DIR)/adlo/adlo.mk
> +DEPENDS-y +=legacybios
> Index: config/payloads/Config.in
> ===================================================================
> --- config/payloads/Config.in (revision 170)
> +++ config/payloads/Config.in (working copy)
> @@ -9,6 +9,9 @@
> help
> Buildrom can build a number of different payloads for the ROM
>
> +config PAYLOAD_ADLO
> + bool "ADLO (Bochs BIOS with a wrapper for Coreboot)"
> +
> config PAYLOAD_COREINFO
> bool "Coreinfo"
>
> Index: packages/adlo/adlo/STATUS
> ===================================================================
> --- packages/adlo/adlo/STATUS (revision 0)
> +++ packages/adlo/adlo/STATUS (revision 0)
> @@ -0,0 +1,154 @@
> +$Id: STATUS,v 1.1 2002/11/25 02:07:53 rminnich Exp $
> +==========================================
> +==========================================
> +
> + STATUS
> +
> +==========================================
> +==========================================
> +
> +LILO
> + fully supported
> +
> + ==========================================
> +
> +GRUB
> + fully supported
> +
> + notes
> + int15/eAX=00C0 - not supported
> + int15/Eax=5300 - not supported
> + int 13 ; fn 41 -> dev 81
> + int 13 ; fn 08 -> dev 81
> +
> + ==========================================
> +
> +LINUX
> + fully supported
> +
> + notes
> + won't reboot
> + fix fb?
> +
> + ==========================================
> +
> +openbsd
> + fully supported
> +
> + notes
> + won't reboot
> +
> + ==========================================
> +Win2k
> +
> + fully supported
> +
> + notes
> + network?
> + better gfx?
> +
> + ==========================================
> +
> +freebsd
> + somewhat supported
> +
> + notes
> + won't reboot
> +
> + right now it hangs somewhere around fsck/net startup
> +
> + probably due to bad PIRQ table,
> + it probably switches to polled IO and is dog slow.
> +
> + ==========================================
> +
> +Win98
> + somewhat supported
> +
> + lots of ata issues, but if get past
> + ata hurdles, desktop will show up
> +
> + press F8 for safe mode.
> + the desktop comes up
> + (can see "safe mode")
> +
> + int 15 D8 (?) not supporte
> + int 15 ?? not supported
> + int 15 fn 24 (set A20 gate) not suported)
> +
> + ==========================================
> +
> +winXP
> +
> + no go
> +
> +safe/normal boot
> +
> + progress bar finishes, switches to gfx mode
> + and immediatelly STOP 7B, no sub error.
> +
> +more timing problems!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
> + more likely "unexpected previous state" problems.
> +
> +cold reboot, normal boot and safe mode
> + missing hal
> + \system32\hal.dll
> +
> + missing system
> +-------------------
> +no lba - ie none
> + function 02, error 11 - drv not ready.
> +
> +
> + ==========================================
> + ==========================================
> +
> +syslinux
> +netbsd
> +hurd
> +dos
> +other applications
> +
> + not supported/tested at present time
> +
> + ==========================================
> +TODO:
> +
> +timing in ide read code (int13) [WIP]
> + grub boot
> + sometimes it work, sometimes it doesn't
> +
> + openbsd boot /WinXP boot.
> + (AH=0x02) misreads sometimes.
> +
> +fix int15 memory functions. (E820, etc)
> + so that mem size is not hard coded.
> + (see prep "fixup" section in loader.s)
> +
> +fix bios to properly handle reboot
> +
> +setup PIRQ table for P6STMT mbo.
> + have it extract from coreboot somehow..
> + find it in ram and copy...
> +
> +hack gcc to support 16 bit real mode.
> +
> +
> +port 80 card broken?
> +
> +hack dev86 to support rdmsr and wrmsr [done]
> +
> +
> + ==========================================
> +problems:
> + -binary only video bios required
> + -binary only bios required
> + -warm reboot from pc bios is required
> + chipset timings or something
> + P6STMT board only.
> +
> +
> + int 12 not stable, multiple reboot required
> + debug msg for slowing down required
> +
> + ==========================================
> Index: packages/adlo/adlo/README.1st
> ===================================================================
> --- packages/adlo/adlo/README.1st (revision 0)
> +++ packages/adlo/adlo/README.1st (revision 0)
> @@ -0,0 +1,37 @@
> +Date: Sat, 23 Nov 2002 22:20:57 -0500
> +From: Adam Sulmicki <adam at cfar.umd.edu>
> +To: LinuxBIOS <linuxbios at clustermatic.org>
> +Cc: William Arbaugh <waa at cs.umd.edu>, Adam Agnew <agnew at cs.umd.edu>
> +Subject: [ANNOUNCE] LinuxBIOS boots Windows 2000, GRUB, and OpenBSD.
> +
> +We're happy to announce that we've been able to successfully boot
> +Windows 2000 without a legacy BIOS. We accomplished this by developing
> +software that combined elements from two very successful projects:
> +LinuxBIOS and BOCHS. The Etherboot project also helped in various ways.
> +
> +As a result now, we have a completely open source replacement for the
> +BIOS that can use (without modification) either LILO or GRUB as
> +bootloaders, and Linux, OpenBSD, and Windows 2000 as operating systems
> +(NOTE: We're still working on supporting FreeBSD and Windows XP. We
> +expect that improving ATA support will permit Win98 and WinXP to boot,
> +and finishing PIRQ support will permit FreeBSD to boot.) Motherboard
> +support is also limited at this time, but we hope to expand that along
> +with LinuxBIOS.
> +
> +More details can be found at:
> +
> +http://www.missl.cs.umd.edu/Projects/sebos/main.shtml
> +
> +and
> +
> +http://www.missl.cs.umd.edu/Projects/sebos/phase2.shtml
> +
> +Ironically, twenty years ago this month Compaq introduced their Compaq
> +portable computer with the first BIOS outside of IBM, see
> +http://www.old-computers.com/museum/computer.asp?st=1&c=547 .
> +
> +Adam Sulmicki
> +Adam Agnew
> +William Arbaugh
> +
> +This work has been funded by a grant from DARPA under the CHATS program.
> Index: packages/adlo/adlo/HACKING
> ===================================================================
> --- packages/adlo/adlo/HACKING (revision 0)
> +++ packages/adlo/adlo/HACKING (revision 0)
> @@ -0,0 +1,16 @@
> +DEVELOPER/HACKING/DESIGN
> +
> +- bochs bios.
> +
> + we expect most of the bochs patches will be rolled back into
> + the bochs mainline.
> +
> + thus when designing an patch for rombios.c both needs of
> + coreboot as well as bochs needed to be taken into
> + consideration.
> +
> +- there are motherboard specific code in loader.s. until this issue
> + is fixed, you need to adjust various motherboard specific
> + settings in loader.s In particular control of the
> + shadow ram.
> +
> Index: packages/adlo/adlo/elf/elf-header-065kb.payload
> ===================================================================
> Cannot display: file marked as a binary type.
> svn:mime-type = application/octet-stream
>
> Property changes on: packages/adlo/adlo/elf/elf-header-065kb.payload
> ___________________________________________________________________
> Name: svn:executable
> + *
> Name: svn:mime-type
> + application/octet-stream
>
> Index: packages/adlo/adlo/elf/elf-header-068kb.payload
> ===================================================================
> Cannot display: file marked as a binary type.
> svn:mime-type = application/octet-stream
>
> Property changes on: packages/adlo/adlo/elf/elf-header-068kb.payload
> ___________________________________________________________________
> Name: svn:executable
> + *
> Name: svn:mime-type
> + application/octet-stream
>
> Index: packages/adlo/adlo/INSTALL
> ===================================================================
> --- packages/adlo/adlo/INSTALL (revision 0)
> +++ packages/adlo/adlo/INSTALL (revision 0)
> @@ -0,0 +1,47 @@
> +1) Are you familar with coreboot?
> +
> + no : abort
> + yes: go to next step.
> +
> +2) do you have Matsonic 7308e motherboard?
> +
> + no : you are on your own (untested).
> + yes: go to next step.
> +
> +3) do you have LiuxBIOS running on Matsonic 7308e motherboard?
> +
> + no : get it working first on your motherboard.
> + yes: go to next step.
> +
> +4) Acquire copy of your VIDEO BIOS.
> +
> + -Put in your PC BIOS into the system,
> + -Boot into linux.
> + -as root run "make videobios" from ADLO's root dir.
> + -copy the file to video directory
> + adjust make file as needed.
> +
> +5) Acquire copy of your PIRQ table.
> +
> + At present time it is not necessary to do this
> + and you can use supplied PIRQ table.
> +
> +6) Acquire copy of BOCHS bios.
> +
> + At present time it is not necessary to do this
> + and you can use supplied rombios.c.
> +
> + In fact you should use supplied rombios.c
> + file as the one used with BOCHS is not
> + complete at the present time.
> +
> +7) Examine make file to see that it does what u want.
> +
> +8) compile
> +
> + make
> +
> +9) use the resulting elf "payload" file with coreboot as you would
> + have used any other elf file. For example put it on the same
> + EERPOM as coreboot is, or use EtherBOOT to load the payload
> + file from hdd or network.
> Index: packages/adlo/adlo/loader.s
> ===================================================================
> --- packages/adlo/adlo/loader.s (revision 0)
> +++ packages/adlo/adlo/loader.s (revision 0)
> @@ -0,0 +1,467 @@
> +;*****************************************************
> +; $Id: loader.s,v 1.1 2002/11/25 02:07:53 rminnich Exp $
> +;*****************************************************
> +USE32
> +; code it is loaded into memory at 0x7C00
> +;*****************************************************
> +nop
> +nop
> +;*****************************************************
> +; A) setup GDT, so that we do not depend on program
> +; that loaded us for GDT.
> +; Ex: Coreboot and EtherBOOT use different GDT's.
> +
> +;-----------------------------------------------------
> +; 0)
> +
> +cli
> +
> +;-----------------------------------------------------
> +; I)
> +
> +lgdt [0x7C00+protected_gdt]
> +
> +;-----------------------------------------------------
> +; II) setup CS
> +
> +jmp 0x08:0x7C00+newpgdt
> +
> +newpgdt: nop
> +
> +;-----------------------------------------------------
> +; III) setup all other segments
> +
> +mov ax, #0x10
> +mov ss, ax
> +mov ds, ax
> +mov es, ax
> +mov fs, ax
> +mov gs, ax
> +
> +;-----------------------------------------------------
> +; IV)
> +
> +; not now
> +;sti
> +
> +;*****************************************************
> +nop
> +nop
> +;*****************************************************
> +; B) shadow - ON (enable/read/write)
> +
> +mov eax, #0x80000070
> +mov dx, #0x0cf8
> +out dx, eax
> +
> +mov eax, #0xFFFFFFFF
> +mov dx, #0x0cfc
> +out dx, eax
> +
> +;*****************************************************
> +nop
> +nop
> +;*****************************************************
> +; C) copy -- boch bios
> +
> +; counter - 64kb.
> +mov ecx, #0x10000
> +
> +; source - 0x8000 ( 0x7C00+0x400 = 0x8000 )
> +mov ax, #0x10 ; src-segment - 2nd entry in GDT
> +mov ds, ax
> +mov eax, #0x8000 ; src-offset - 0x8000
> +mov esi, eax
> +
> +; destination - 0xF0000
> +mov ax, #0x10 ; dst-segment - 2nd entry in GDT
> +mov es, ax
> +mov eax, #0xF0000 ; dst-offset - 0xF0000
> +mov edi, eax
> +
> +; clear direction flag
> +cld
> +
> +; the copy
> +rep
> + movsb
> +
> +;*****************************************************
> +nop
> +nop
> +;*****************************************************
> +; X) copy -- Coreboot table into safe place.
> +
> + ;; TODO.
> + ;; Q1 : what is the size of table.
> + ;; Q2 : where to copy?
> +
> +;*****************************************************
> +nop
> +nop
> +;*****************************************************
> +; E) shadow - OFF (write)
> +
> +mov eax, #0x80000070
> +mov dx, #0x0cf8
> +out dx, eax
> +
> +;mov eax, #0xFFFFFFFF
> +mov eax, #0x0000FFFF
> +mov dx, #0x0cfc
> +out dx, eax
> +
> +;*****************************************************
> +nop
> +nop
> +;*****************************************************
> +; F) do a little prep work.
> +
> +;-----------------------------------------------------
> +; I) disable cache
> +
> +; if you disable cache, GRUB's GFX mode will be VERY slow.
> +; so DO NOT DISABLE
> +
> +;mov eax, cr0
> +;or eax, #0x60000000
> +;wbinvd
> +;mov cr0, eax
> +;wbinvd
> +
> +;-----------------------------------------------------
> +; II) disable MTRR
> +; clear the "E" (0x800) and "FE" (0x400) flags in
> +; IA32_MTRRdefType register (0x2FF)
> +
> +;-----------------------
> +
> +;mov ECX,#0x2FF
> +
> +; select either of the two below
> +; depending on if your compiler suports
> +; {RD,WR}MSR or not
> +;rdmsr
> +; .byte 0x0F, 0x32
> +
> +;xor edx, edx
> +; xor eax, eax
> +;and eax, #0xFFFFF3FF
> +
> +; select either of the two below
> +; depending on if your compiler suports
> +; {RD,WR}MSR or not
> +;wrmsr
> +; .byte 0x0F, 0x30
> +
> +;-----------------------
> +;; This is what PC BIOS is setting. -- P6STMT.
> +; add VIDEO BIOS cacheable!!!!
> +;-----------------------
> +; Fixed Range C0--C8
> +;mov ECX,#0x268
> +;mov EDX,#0x05050505
> +;mov EAX,#0x05050505
> +;wrmsr
> +;-----------------------
> +; Fixed Range C8--CF
> +;mov ECX,#0x269
> +;mov EDX,#0x0
> +;mov EAX,#0x05050505
> +;wrmsr
> +;-----------------------
> +
> +;-----------------------------------------------------
> +; III) tell BOCHS' BIOS we want to boot from hdd.
> +; 0x00 - floppy
> +; 0x02 - hdd
> +; It's changed now //With El Torito enabled
> +; 0x0 - none
> +; 0x1 - floppy
> +; 0x2 - hdd
> +; 0x3 - cdrom
> +; i.e., 0x23 means try the cdrom first, then the hdd
> +; In future there will be 'fd failover'option in bochs.
> +
> +mov al, #0x3d ;; cmos_reg
> +out 0x70, al
> +mov al, #0x23 ;; val (cd then hdd)
> +out 0x71, al
> +
> +;-----------------------------------------------------
> +; IV) tell BOCHS' BIOS length of our mem block @ 1mb.
> +; This is for Int 15 / EAX=E820
> +; 119mb = 0x77 00 00 00
> +; (this is for 128mb of ram)
> +; (FIXME: this value is currently hard coded)
> +; (it should be being passed from coreboot )
> +
> +; for WinFast 6300
> +; 07 70 = 0770
> +; 06 80 = 0770 - 00F0 << ALT (for unpatched bochs)
> +
> +; for P6STMT - 10kb less ram
> +; 077F - 10 = 07 6F
> +; 07 6F - 00 F0 = 06 7F
> +
> +mov al, #0x35 ;; cmos_reg
> +out 0x70, al
> +mov al, #0x06 ;; val
> +out 0x71, al
> +
> +mov al, #0x34 ;; cmos_reg
> +out 0x70, al
> +mov al, #0x7F ;; val
> +out 0x71, al
> +
> +mov al, #0x31 ;; cmos_reg
> +out 0x70, al
> +mov al, #0x00 ;; val
> +out 0x71, al
> +
> +mov al, #0x30 ;; cmos_reg
> +out 0x70, al
> +mov al, #0x00 ;; val
> +out 0x71, al
> +
> +;-----------------------------------------------------
> +; V) tell BOCHS' BIOS we want to have LBA translation.
> +; 0x00 - NONE
> +; 0x01 - LBA <<<<
> +; 0x02 - LARGE
> +; 0x03 - R-CHS
> +; In future there will be 'fd failover'option in bochs.
> +
> +mov al, #0x39 ;; cmos_reg
> +out 0x70, al
> +mov al, #0x05 ;; val 5 = (LBA and LBA) 0 = none
> +out 0x71, al
> +
> +;*****************************************************
> +nop
> +nop
> +;*****************************************************
> +; G) the switch -- protected to real mode
> +
> +; IASDM, Vol 3
> +; (8-14) 8.8.2 Switching Back to Real-Address Mode
> +
> +;=====================================================
> +; 1) disable interrupts
> +
> +cli
> +
> +;=====================================================
> +nop
> +;=====================================================
> +; 2) paging
> +
> +;not enabled, so not applicable.
> +
> +;=====================================================
> +; 3) setup CS segment limit (64kb)
> +; I)
> +
> +lgdt [0x7C00+new_gdt]
> +
> +;-----------------------------------------------------
> +; II)
> +
> +jmp 0x08:0x7C00+new64lim
> +
> +new64lim: nop
> +
> +;=====================================================
> +nop
> +;=====================================================
> +; 4) setup all other segments
> +
> +mov ax, #0x10
> +mov ss, ax
> +mov ds, ax
> +mov es, ax
> +mov fs, ax
> +mov gs, ax
> +
> +;=====================================================
> +nop
> +;=====================================================
> +; 5) LIDT
> +; I)
> +
> +; set up Real Mode IDT table (0...3FF)
> +
> +; for BOCH's BIOS the address 0xF000:0xFF53
> +; cantains value 0xCF which is IRET opcode.
> +
> +; counter
> +mov cx, #0xFF ;1024 bytes(255 interrupts)(4*255=0x3FF)
> +
> +; destination - 0x00000 = ES:EDI
> +mov ax, #0x10 ; dst-segment - 2nd entry in GDT
> +mov es, ax
> +mov eax, #0x00000 ; dst-offset - 0x00000
> +mov edi, eax
> +
> +; data to store -- 0xF000:FF53
> +mov eax, #0xF000FF53
> +
> +; clear direction flag
> +cld
> +
> +; the store
> +rep
> + stosd
> +
> +;-----------------------------------------------------
> +; II)
> +; load interrupt descriptor table
> +
> +lidt [0x7C00+new_idt]
> +
> +;=====================================================
> +nop
> +nop
> +;=====================================================
> +; 6) clear the PE flag in CR0 register.
> +; I)
> +
> +; switch to 16 bit segments
> +mov ax, #0x20
> +mov ss, ax
> +mov ds, ax
> +mov es, ax
> +mov fs, ax
> +mov gs, ax
> +
> +;-----------------------------------------------------
> +; II)
> +
> +; switch to 16 bit CS
> +
> +jmp 0x018:0x7C00+new16bit
> +
> +USE16
> +
> +new16bit: nop
> +
> +;-----------------------------------------------------
> +; III)
> +; the switch
> +
> +;xor eax, eax
> +
> +mov eax, cr0
> +and eax, #0xFFFFFFFE
> +mov cr0, eax ;switch to RM
> +
> +;=====================================================
> +nop
> +nop
> +;=====================================================
> +; 7) far jump -- (to real mode address)
> +
> +jmp 0x0:0x7C00+realcs
> +
> +realcs: nop
> +
> +;=====================================================
> +; 8) set all segment registers to 0's
> +
> +mov ax, #0x0
> +mov ss, ax
> +mov ds, ax
> +mov es, ax
> +mov fs, ax
> +mov gs, ax
> +
> +;=====================================================
> +; 9) re-enable interrupts
> +
> +sti
> +
> +;*****************************************************
> +nop
> +nop
> +;*****************************************************
> +; H) jump to BIOS.
> +
> +jmp 0xFFFF:0x0000
> +;jmp 0xF000:0xFFF0
> +
> +;*****************************************************
> +;*****************************************************
> +nop
> +nop
> +nop
> +nop
> +;*****************************************************
> +;*****************************************************
> +
> +USE32
> +
> +new_idt:
> +dw 0x03ff ;; limit 15:00
> +dw 0x0000 ;; base 15:00
> +dw 0x0000 ;; base 23:16
> +
> +new_gdt:
> +dw 0x0028 ;; limit 15:00
> +dw 0x7C00+new_gdt_table ;; base 15:00
> +dw 0x0000 ;; base 23:16
> +
> +protected_gdt:
> +dw 0x0018 ;; limit 15:00
> +dw 0x7C00+pmode_gdt_table ;; base 15:00
> +dw 0x0000 ;; base 23:16
> +
> +;-----------------------------------------------------
> +
> +new_gdt_table:
> +;// 1 2 3 4
> +;//0
> +dd 0x00000000
> +dd 0x00000000
> +
> +;//8
> +dd 0x0000ffff
> +dd 0x00409E00
> +
> +;//10
> +dd 0x0000ffff
> +dd 0x00409200
> +
> +;//18
> +dd 0x0000ffff
> +dd 0x00009a00
> +
> +;//20
> +dd 0x0000ffff
> +dd 0x00009200
> +
> +;-------------------------
> +
> +pmode_gdt_table:
> +;// 1 2 3 4
> +;//0
> +dd 0x00000000
> +dd 0x00000000
> +
> +;//8
> +dd 0x0000ffff
> +dd 0x00CF9E00
> +
> +;//10
> +dd 0x0000ffff
> +dd 0x00CF9200
> +
> +;*****************************************************
> +;*****************************************************
> +; the file size must be 1024 bytes.
> +
> +
> +.org 0x400-1
> +; dd 0xdeadbeef
> +db 0x0
> +
> +;*****************************************************
> Index: packages/adlo/adlo/align.patch
> ===================================================================
> --- packages/adlo/adlo/align.patch (revision 0)
> +++ packages/adlo/adlo/align.patch (revision 0)
> @@ -0,0 +1,105 @@
> +--- loader.s 2008-02-13 12:12:04.000000000 -0700
> ++++ loader_4K.s 2008-04-11 15:57:01.000000000 -0600
> +@@ -2,7 +2,7 @@
> + ; $Id: loader.s,v 1.1 2002/11/25 02:07:53 rminnich Exp $
> + ;*****************************************************
> + USE32
> +-; code it is loaded into memory at 0x7C00
> ++; code it is loaded into memory at 0x7000
> + ;*****************************************************
> + nop
> + nop
> +@@ -19,12 +19,12 @@
> + ;-----------------------------------------------------
> + ; I)
> +
> +-lgdt [0x7C00+protected_gdt]
> ++lgdt [0x7000+protected_gdt]
> +
> + ;-----------------------------------------------------
> + ; II) setup CS
> +
> +-jmp 0x08:0x7C00+newpgdt
> ++jmp 0x08:0x7000+newpgdt
> +
> + newpgdt: nop
> +
> +@@ -67,7 +67,7 @@
> + ; counter - 64kb.
> + mov ecx, #0x10000
> +
> +-; source - 0x8000 ( 0x7C00+0x400 = 0x8000 )
> ++; source - 0x8000 ( 0x7000+0x1000 = 0x8000 )
> + mov ax, #0x10 ; src-segment - 2nd entry in GDT
> + mov ds, ax
> + mov eax, #0x8000 ; src-offset - 0x8000
> +@@ -262,12 +262,12 @@
> + ; 3) setup CS segment limit (64kb)
> + ; I)
> +
> +-lgdt [0x7C00+new_gdt]
> ++lgdt [0x7000+new_gdt]
> +
> + ;-----------------------------------------------------
> + ; II)
> +
> +-jmp 0x08:0x7C00+new64lim
> ++jmp 0x08:0x7000+new64lim
> +
> + new64lim: nop
> +
> +@@ -317,7 +317,7 @@
> + ; II)
> + ; load interrupt descriptor table
> +
> +-lidt [0x7C00+new_idt]
> ++lidt [0x7000+new_idt]
> +
> + ;=====================================================
> + nop
> +@@ -339,7 +339,7 @@
> +
> + ; switch to 16 bit CS
> +
> +-jmp 0x018:0x7C00+new16bit
> ++jmp 0x018:0x7000+new16bit
> +
> + USE16
> +
> +@@ -361,7 +361,7 @@
> + ;=====================================================
> + ; 7) far jump -- (to real mode address)
> +
> +-jmp 0x0:0x7C00+realcs
> ++jmp 0x0:0x7000+realcs
> +
> + realcs: nop
> +
> +@@ -407,12 +407,12 @@
> +
> + new_gdt:
> + dw 0x0028 ;; limit 15:00
> +-dw 0x7C00+new_gdt_table ;; base 15:00
> ++dw 0x7000+new_gdt_table ;; base 15:00
> + dw 0x0000 ;; base 23:16
> +
> + protected_gdt:
> + dw 0x0018 ;; limit 15:00
> +-dw 0x7C00+pmode_gdt_table ;; base 15:00
> ++dw 0x7000+pmode_gdt_table ;; base 15:00
> + dw 0x0000 ;; base 23:16
> +
> + ;-----------------------------------------------------
> +@@ -457,10 +457,10 @@
> +
> + ;*****************************************************
> + ;*****************************************************
> +-; the file size must be 1024 bytes.
> ++; the file size must be 4096 bytes.
> +
> +
> +-.org 0x400-1
> ++.org 0x1000-1
> + ; dd 0xdeadbeef
> + db 0x0
> +
> Index: packages/adlo/adlo/COPYING
> ===================================================================
> --- packages/adlo/adlo/COPYING (revision 0)
> +++ packages/adlo/adlo/COPYING (revision 0)
> @@ -0,0 +1,340 @@
> + GNU GENERAL PUBLIC LICENSE
> + Version 2, June 1991
> +
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> + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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> +
> +This General Public License does not permit incorporating your program into
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> +library. If this is what you want to do, use the GNU Library General
> +Public License instead of this License.
> Index: packages/adlo/adlo/CAST
> ===================================================================
> --- packages/adlo/adlo/CAST (revision 0)
> +++ packages/adlo/adlo/CAST (revision 0)
> @@ -0,0 +1,9 @@
> +Most of the analysis, design and implementation of the project was done by
> +me, Adam Sulmicki. I have received invaluable help from Adam Agnew. Bill
> +Arbaugh was the person who made it all possible.
> +
> +I also received help from Christophe Bothamy, Bochs' developer, on all
> +Boch's bios related issues. Thanks!
> +
> +I also got tips from Eric W. Biederman, as well as other members of the
> +coreboot mailing list.
> Index: packages/adlo/adlo/NEWS
> ===================================================================
> --- packages/adlo/adlo/NEWS (revision 0)
> +++ packages/adlo/adlo/NEWS (revision 0)
> @@ -0,0 +1,38 @@
> +initial release
> +
> + boots LILO
> +
> +"linux_alpha" release
> +
> + fixed keyboard in lilo
> +
> + boots linux
> + (must use "linux mem=100mb ro init=/bin/sh ")
> +
> +"win2k" release
> +
> + lilo works
> + no restrictions
> + grub works
> + no restrictions
> + linux works
> + no restrictions
> + openbsd works
> + no restrictions
> + win2k
> + no restrictions
> +
> + freebsd
> + hangs at /sbin/init
> + win98
> + sometimes boots up to desktop
> + winXP
> + finish text mode bar,
> + switch to gfx mode
> + stop 7b
> +
> +"public" release
> +
> + just bit of cleanups, other than that same as
> + "win2k" release.
> +
> Index: packages/adlo/adlo/README
> ===================================================================
> --- packages/adlo/adlo/README (revision 0)
> +++ packages/adlo/adlo/README (revision 0)
> @@ -0,0 +1,231 @@
> +==========================================
> +$Id: README,v 1.1 2002/11/25 02:07:53 rminnich Exp $
> +==========================================
> +
> +ADLO
> +
> + A project to combine coreboot and BOCHS BIOS to add support
> + for booting legacy applications, such as Microsoft Windows.
> +
> +==========================================
> +
> +Boot Overvew:
> +
> + ADLO requires an boot loader with ELF support.
> + In our case it is either coreboot or EtherBOOT.
> +
> + Sample execution paths:
> +
> +coreboot -> ADLO -> LILO -> LINUX
> +
> +coreboot -> EtherBOOT -> ADLO -> LILO -> LINUX
> +
> + Then it can start any real mode application.
> + In our case it could be LILO or GRUB, but
> + choices are not limited to this.
> +
> +==========================================
> +
> +ADLO overview:
> +
> + -Elf header
> + -mainteance routines
> + -bochs bios
> + -vga bios
> +
> +------------------------------------------
> +
> +Elf header
> +
> + hand crafted binary. Currently there are 3 diff binaries
> + for three different sizes of payload (65kb,113kb,129kb).
> +
> + they are catted at beginning of file
> +
> +------------------------------------------
> +
> +mainteance routines
> +
> + this is the loader.s file which gets compiled into loader.o binary
> +
> + it is catted 2nd right after elf header and it is where
> + control is being transfered when the elf is executed.
> +
> + it consist of :
> + -tuneups:
> + select device to boot
> + set memory for Int15/EAX=E820
> + enable LBA
> + copy coreboot table [TODO]
> + -shadow :
> + enable/write/read
> + -copy:
> + bochs @ 0xF00000
> + video bios (binary only) @ 0xC00000
> + -switch
> + from Real to Protected Mode
> + -jump
> + jmp to the bios at 0xFFFF:0x0000
> +
> + we must have bios payload always at 1kb
> + offset from start of ELF payload so loader.o
> + must be always 1024 bytes.
> +
> +------------------------------------------
> +
> +BOCHS BIOS
> +
> + we have taken the boch's project and just extracted
> + its bios from it only. it took us (so far) only
> + minor modifications in order to make it work.
> +
> + basically it is the following directory in the
> + bochs sources
> +
> + bochs-cvs/bochs/bios
> +
> + of all files there the rombios.c is the key file.
> + Most of the times our patches are against current
> + version of the rombios.c file. We try to feed back
> + the patches to bochs maintainers so that's possible
> + to use the bochs bios as is.
> +
> + the boch's related stuff are in bochs subdirectory.
> +
> + building boch's bios is as simple as
> +
> + cd bochs/bochs-cvs/bochs/bios
> + make
> +
> + the resulting file rombios.bin is our bios image.
> +
> + -----
> + At present time, it is recommended to use
> + dev86-0.16.3 + my patch in order to compile
> + bochs' bios. The dev86 package can be found
> + at:
> +
> + http://www.cix.co.uk/~mayday/
> +
> + prepatched sources at:
> +
> + http://www.missl.cs.umd.edu/~adam/dev86-0.16.3-MSR.tgz
> +
> +------------------------------------------
> +
> +Video BIOS
> +
> + Video BIOS we use is binary only, so far.
> +
> + At the present time we are using the original
> + Video BIOS as supplied from the system.
> +
> + To get the image simply type:
> +
> + make makevideobios
> +
> + The right thing will happen. For refernece the
> + magic line in the Makefile is:
> +
> + videobios:
> + dd if=/proc/kcore \
> + of=./video.bios.bin \
> + bs=1 count=65536 skip=790528
> +
> + ---------------
> +
> + We assume it is located at 0xC00000-0xE00000
> + and we use 'dd and /proc/kcore to extract it
> + (obviously it works as root only).
> +
> + Obviously it needs to be done with original
> + (as shipped by manufactuer bios) so it should
> + be done as the first step of the ADLO setup.
> +
> + ---------------
> +
> + The /proc/kcore is in ELF format (linux kernel
> + 2.4.x and later) so if we want to get accurate
> + image of ram we must skip the ELF header.
> + The magic command is :
> +
> + readelf -a /proc/kcore
> +
> +Program Headers:
> + Type Offset VirtAddr PhysAddr FileSiz MemSiz
> + NOTE 0x0007d4 0x00000000 0x00000000 0x005b0 0x00000
> + LOAD 0x001000 0xc0000000 0x00000000 0xff60000 0xff60000
> + ^^^^^^^^
> +
> + There we look for the first LOAD section, and see what
> + is its offset (for us it is 0x1000)
> +
> + ---------------
> +
> + 64KiB = 65536
> +
> + 0x0C 00 00 + 0x10 00 = 790528
> +
> + ---------------
> +
> + On technical note in our case video bios
> + is just 48kb, but for paranoia sake we copy
> + 64kb.
> +
> +==========================================
> +
> +Environment overview
> +
> +ADLO is an ELF file and thus can be loaded either directly from 1)
> +coreboot, or 2) via EtherBOOT, or 3) via EtherBOOT+ AA patch for FS
> +support.
> +
> +1)
> +Both coreboot and ADLO are on the same EEPROM chip. From end-user
> +viewpoint it is probably the most similar to the bios classic.
> +(computer boots up and just loads whatever is in MBR).
> +
> +2)
> +Set it up in /tftpboot directory on dhcp/tftp server and have it served
> +from there. (this is how we did the development)
> +
> +3)
> +Use AA patch and put it as /kernel file and it will be then loaded by
> +etherboot from local hard disk.
> +
> +
> +------------------------------------------
> +
> +Before ADLO starts.
> +
> + ADLO requires an boot loader with ELF support.
> + In our case it is:
> +
> + -coreboot
> + -coreboot and EtherBOOT
> + -coreboot and EtherBOOT + AA polled I/O patch (w/ FS support).
> +
> + As little as coreboot only is required to get ADLO
> + up and running.
> +
> + For development purposes it is recommended full set of
> + coreboot + EtherBOOT and boot via DHCP/TFTP.
> +
> +------------------------------------------
> +
> +After ADLO finish.
> +
> + ADLO will attempt to locate the first hard disk
> + and read MBR from it and execute.
> +
> + Then it can start any real mode application.
> + In our case it could be LILO or GRUB
> + but choices are not limited to this.
> +
> + In our case it would cause LILO to load
> + (fully usable) and from there it was able to
> + execute simple programs. so far the list
> + of the program is limited to linux which
> + runs somewhat. More to come in future.
> +
> +==========================================
> Index: packages/adlo/adlo/Makefile
> ===================================================================
> --- packages/adlo/adlo/Makefile (revision 0)
> +++ packages/adlo/adlo/Makefile (revision 0)
> @@ -0,0 +1,42 @@
> +#-------------------------------------------------
> +# $Id: Makefile,v 1.2 2003/05/22 12:52:38 aip Exp $
> +#-------------------------------------------------
> +
> +ELF065=elf/elf-header-065kb.payload
> +ELF068=elf/elf-header-068kb.payload
> +
> +LOADER=loader
> +LOADER_4K=loader_4K
> +
> +LOADERS= ${LOADER_4K}.o ${LOADER}.o
> +
> +BOCHS_PATH=legacybios
> +
> +BIOS=${BOCHS_PATH}/rom.bin
> +
> +PAYLOAD=adlo.elf
> +PAYLOAD_KEXEC=adlo.aligned.elf
> +
> +#-------------------------------------------------
> +
> +all: ${LOADERS} ${BIOS}
> + cat ${ELF065} ${LOADER}.o ${BIOS} > ${PAYLOAD}
> + cat ${ELF068} ${LOADER_4K}.o ${BIOS} > ${PAYLOAD_KEXEC}
> +
> +#-------------------------------------------------
> +
> +${LOADER}.o: ${LOADER}.s
> + as86 $< -b $@
> +
> +${LOADER_4K}.s: ${LOADER}.s
> + patch $< -o $@ < align.patch
> +
> +${LOADER_4K}.o: ${LOADER_4K}.s
> + as86 $< -b $@
> +
> +#-------------------------------------------------
> +
> +clean:
> + rm -rf *.o ${PAYLOAD} ${PAYLOAD_KEXEC}
> + rm -rf ${LOADER_4K}.s
> +
> Index: packages/adlo/adlo.mk
> ===================================================================
> --- packages/adlo/adlo.mk (revision 0)
> +++ packages/adlo/adlo.mk (revision 0)
> @@ -0,0 +1,54 @@
> +ADLO_DIR=$(BUILD_DIR)/adlo
> +ADLO_SRC_DIR=$(ADLO_DIR)/adlo
> +ADLO_STAMP_DIR=$(ADLO_DIR)/stamps
> +ADLO_LOG_DIR=$(ADLO_DIR)/logs
> +
> +ADLO_PATCHES=
> +
> +ifeq ($(CONFIG_VERBOSE),y)
> +ADLO_FETCH_LOG=/dev/stdout
> +ADLO_BUILD_LOG=/dev/stdout
> +ADLO_INSTALL_LOG=/dev/stdout
> +else
> +ADLO_BUILD_LOG=$(ADLO_LOG_DIR)/build.log
> +ADLO_INSTALL_LOG=$(ADLO_LOG_DIR)/install.log
> +ADLO_FETCH_LOG=$(ADLO_LOG_DIR)/fetch.log
> +endif
> +
> +# Make sure we have the tools we need to accomplish this
> +HAVE_AS86:=$(call find-tool,as86)
> +
> +ifeq ($(HAVE_AS86),n)
> +$(error To build ADLO, you need to install as86, available in dev86)
> +endif
> +
> +$(ADLO_STAMP_DIR)/.unpacked: | $(ADLO_STAMP_DIR) $(ADLO_DIR) $(ADLO_LOG_DIR)
> + @ echo "Unpacking adlo..."
> + @ cp -r $(PACKAGE_DIR)/adlo/adlo $(ADLO_DIR)
> + @ ln -s $(LEGACYBIOS_SRC_DIR)/out/ $(ADLO_DIR)/adlo/legacybios
> + @ touch $@
> +
> +$(ADLO_SRC_DIR)/adlo.elf: $(ADLO_STAMP_DIR)/.unpacked $(LEGACYBIOS_SRC_DIR)/out/rom.bin
> + @ echo "Building adlo..."
> + @ make -C $(ADLO_SRC_DIR) > $(ADLO_BUILD_LOG) 2>&1
> +
> +$(ADLO_STAMP_DIR)/.copied: $(ADLO_SRC_DIR)/adlo.elf
> + @ mkdir -p $(shell dirname $(PAYLOAD_ELF))
> + @ cp $(ADLO_SRC_DIR)/adlo.elf $(PAYLOAD_ELF)
> + @ touch $@
> +
> +$(ADLO_STAMP_DIR) $(ADLO_LOG_DIR):
> + @ mkdir -p $@
> +
> +adlo: $(ADLO_STAMP_DIR)/.copied
> +
> +adlo-clean:
> + @ echo "Cleaning adlo..."
> + @ rm -f $(ADLO_STAMP_DIR)/.copied
> +ifneq ($(wildcard $(ADLO_SRC_DIR)/Makefile),)
> + @ $(MAKE) -C $(ADLO_SRC_DIR) clean > /dev/null 2>&1
> +endif
> +
> +adlo-distclean:
> + @ rm -rf $(ADLO_DIR)/*
> +
> Index: packages/legacybios/legacybios.mk
> ===================================================================
> --- packages/legacybios/legacybios.mk (revision 0)
> +++ packages/legacybios/legacybios.mk (revision 0)
> @@ -0,0 +1,56 @@
> +LEGACYBIOS_URL=http://linuxtogo.org/~kevin/legacybios/
> +LEGACYBIOS_TAG=0.2.0
> +
> +LEGACYBIOS_DIR=$(BUILD_DIR)/legacybios
> +LEGACYBIOS_SRC_DIR=$(LEGACYBIOS_DIR)/legacybios-$(LEGACYBIOS_TAG)
> +LEGACYBIOS_STAMP_DIR=$(LEGACYBIOS_DIR)/stamps
> +LEGACYBIOS_LOG_DIR=$(LEGACYBIOS_DIR)/logs
> +
> +LEGACYBIOS_PATCHES=
> +
> +ifeq ($(CONFIG_VERBOSE),y)
> +LEGACYBIOS_FETCH_LOG=/dev/stdout
> +LEGACYBIOS_BUILD_LOG=/dev/stdout
> +LEGACYBIOS_INSTALL_LOG=/dev/stdout
> +else
> +LEGACYBIOS_BUILD_LOG=$(LEGACYBIOS_LOG_DIR)/build.log
> +LEGACYBIOS_INSTALL_LOG=$(LEGACYBIOS_LOG_DIR)/install.log
> +LEGACYBIOS_FETCH_LOG=$(LEGACYBIOS_LOG_DIR)/fetch.log
> +endif
> +
> +LEGACYBIOS_TARBALL=legacybios-$(LEGACYBIOS_TAG).tar.gz
> +LEGACYBIOS_SOURCE=legacybios-$(LEGACYBIOS_TAG).tar.gz
> +
> +ifeq ($(shell if [ -f $(PACKAGE_DIR)/legacybios/conf/customconfig--$(PAYLOAD)--$(COREBOOT_VENDOR)-$(COREBOOT_BOARD) ]; then echo 1; fi),1)
> + LEGACYBIOS_CONFIG = customconfig--$(PAYLOAD)--$(COREBOOT_VENDOR)-$(COREBOOT_BOARD)
> +endif
> +
> +$(SOURCE_DIR)/$(LEGACYBIOS_TARBALL):
> + @ mkdir -p $(SOURCE_DIR)
> + @ wget $(WGET_Q) -P $(SOURCE_DIR) $(LEGACYBIOS_URL)/$(LEGACYBIOS_SOURCE) --output-document=$(SOURCE_DIR)/$(LEGACYBIOS_TARBALL)
> +
> +$(LEGACYBIOS_STAMP_DIR)/.unpacked: $(SOURCE_DIR)/$(LEGACYBIOS_TARBALL) | $(LEGACYBIOS_STAMP_DIR) $(LEGACYBIOS_DIR) $(LEGACYBIOS_LOG_DIR)
> + @ echo "Unpacking legacybios..."
> + @ tar -C $(LEGACYBIOS_DIR) -zxf $(SOURCE_DIR)/$(LEGACYBIOS_TARBALL)
> + @ touch $@
> +
> +$(LEGACYBIOS_SRC_DIR)/out/rom.bin: $(LEGACYBIOS_STAMP_DIR)/.unpacked
> + @ echo "Building legacybios..."
> + @ echo $(LEGACYBIOS_SRC_DIR)
> + @ make -C $(LEGACYBIOS_SRC_DIR) > $(LEGACYBIOS_BUILD_LOG) 2>&1
> +
> +$(LEGACYBIOS_STAMP_DIR) $(LEGACYBIOS_LOG_DIR):
> + @ mkdir -p $@
> +
> +legacybios: $(LEGACYBIOS_SRC_DIR)/out/rom.bin
> +
> +legacybios-clean:
> + @ echo "Cleaning legacybios..."
> + @ rm -f $(LEGACYBIOS_STAMP_DIR)/.copied
> +ifneq ($(wildcard $(LEGACYBIOS_SRC_DIR)/Makefile),)
> + @ $(MAKE) -C $(LEGACYBIOS_SRC_DIR) clean > /dev/null 2>&1
> +endif
> +
> +legacybios-distclean:
> + @ rm -rf $(LEGACYBIOS_DIR)/*
> +
> --
> coreboot mailing list
> coreboot at coreboot.org
> http://www.coreboot.org/mailman/listinfo/coreboot
--
Jordan Crouse
Systems Software Development Engineer
Advanced Micro Devices, Inc.
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