coreboot November 2002

coreboot@coreboot.org

65 participants
108 discussions

occurs segmentation fault, when I make a file system(ext3 or reiserfs)
by Munjun Kang 22 Nov '02

22 Nov '02

Dear linuxbios. Hello. I've worked for development of Embedded linux project in my corp. Following is decription of my projcet. CPU : VIA C3 800Mhz (EBGA) Reference Board : VT6015 Northbridge : VT8606 (include S3 twister video core) Southbridge : VT8231 (include VIA rhine II LAN core) Bootbios : Linuxbios OS : linux 2.4.19 ( ramdisk include glibc 2.3.1, busybox 0.60.5 and tinylogin 1.2 ) Now, It works well except hard disk. I try to boot the kernel in two way. First, it loads compressed kernel and ramdisk image via network using tftp protocol. Second, it loads elfImage, generated by 'mkelfImage' via network. All of them work great. (It means that I can see the prompt '\ '.) But, when I try to make a file system the harddisk, 'segmentation fault' occurs. mke2fs and mkreiserfs have same problem. For find out the cause, I try to make a file system in various method. 1. Buildin Bios + Redhat 8.0 installed harddisk + test harddisk 2. Linuxbios + Redhat 8.0 installed harddisk + test harddisk 3. Linuxbios + Kernel(newly compiled), own ramdisk + test harddisk After boot, I try to make a file system on test harddisk. In case 1, It works well. Of course, it must be. In case 2 and 3, I meet the segmentation fault. So, I think that this problem caused in Linuxbios. Maybe, this problem caused by harddisk initialization in linuxbios. But, there are no harddisk initialization code in linuxbios. Cound you help me? Thanks for reading. Regards, malas PS. In addition, memtest86 v3.0 works well without error. Follwing is boot messages. -------------------------------------------------------------------------- PDVR_Hx> tftp 01000000 linux.img ==> my own boot bios prompt like PPCboot PCI: Enabling bus mastering for device 00:90 rhine.c v1.0.0 2000-01-07 IO address 1400 Ethernet Address: 00:02:f1:80:21:00 Analyzing Media type,this will take several seconds........OK MII Addr. : 0x01 PHYID1 : 0x0101, PHYID2 : 0x8f25 Control : 0x3100, Status : 0x786d Auto-Nego. Adv. : 0x05e1, Link Partner Adv. : 0x41e1 Linespeed : 100Mbs, Full-duplex # ServerIP = 192.168.0.41 # ServerMAC = 00:50:fc:3a:46:cd # TFTP Ready : blocksize/dot = 1432 bytes # Loading ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ..... # TFTP Complete : 0x0010e0b0 bytes at address 0x01000000. PDVR_Hx> tftp 02000000 ramdisk.img # ServerIP = 192.168.0.41 # ServerMAC = 00:50:fc:3a:46:cd # TFTP Ready : blocksize/dot = 1432 bytes # Loading ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ................................................................ ........ # TFTP Complete : 0x0010f196 bytes at address 0x02000000. PDVR_Hx> boot 01000000 02000000 # Checking Image at 0x01000000. # Image Name: PDVR-H8 Kernel Image Image Type: Intel x86 Linux Kernel Image (gzip compressed) Data Size: 1106032 Bytes = 1080 kB = 1 MB Load Address: 00100000 Entry Point: 00100000 # Verifying Checksum ... OK # Uncompressing kernel image... # Checking Image at 0x02000000. # Image Name: PDVR Ramdisk Image Image Type: Intel x86 Linux RAMDisk Image (gzip compressed) Data Size: 1110358 Bytes = 1084 kB = 1 MB Load Address: 01000000 Entry Point: 01000000 # Verifying Checksum ... OK # command line - [root=/dev/ram console=ttyS0,115200n8 reboot=b] # boot kernel rhine disable ==> turn off the network device to do not receive packet during boot kernel Linux version 2.4.19-linuxbios_4 (malas@******) (gcc version 3.2) #62 Fri Nov 22 11:34:28 KST 2002 BIOS-provided physical RAM map: BIOS-e820: 0000000000000000 - 00000000000a0000 (usable) BIOS-e820: 00000000000a0000 - 0000000000100000 (reserved) BIOS-e820: 0000000000100000 - 0000000007800000 (usable) BIOS-e820: 00000000fffc0000 - 0000000100000000 (reserved) 120MB LOWMEM available. On node 0 totalpages: 30720 zone(0): 4096 pages. zone(1): 26624 pages. zone(2): 0 pages. Kernel command line: root=/dev/ram console=ttyS0,115200n8 reboot=b Initializing CPU#0 Detected 800.047 MHz processor. Calibrating delay loop... 1595.80 BogoMIPS Memory: 117456k/122880k available (1244k kernel code, 5040k reserved, 839k data, 224k init, 0k highmem) Checking if this processor honours the WP bit even in supervisor mode... Ok. kdb version 2.3 by Scott Lurndal, Keith Owens. Copyright SGI, All Rights Reserved Dentry cache hash table entries: 16384 (order: 5, 131072 bytes) Inode cache hash table entries: 8192 (order: 4, 65536 bytes) Mount-cache hash table entries: 2048 (order: 2, 16384 bytes) Buffer-cache hash table entries: 4096 (order: 2, 16384 bytes) Page-cache hash table entries: 32768 (order: 5, 131072 bytes) CPU: L1 I Cache: 64K (32 bytes/line), D cache 64K (32 bytes/line) CPU: L2 Cache: 64K (32 bytes/line) CPU: Centaur VIA Ezra stepping 08 Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX mtrr: v1.40 (20010327) Richard Gooch (rgooch(a)atnf.csiro.au) mtrr: detected mtrr type: Intel PCI: Using configuration type 1 PCI: Probing PCI hardware Unknown bridge resource 0: assuming transparent PCI: Using IRQ router VIA [1106/8231] at 00:11.0 PCI: Found IRQ 6 for device 00:12.0 PCI: Found IRQ 7 for device 01:00.0 Linux NET4.0 for Linux 2.4 Based upon Swansea University Computer Society NET3.039 Initializing RT netlink socket Starting kswapd Journalled Block Device driver loaded Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled ttyS00 at 0x03f8 (irq = 4) is a 16550A Real Time Clock Driver v1.10e Non-volatile memory driver v1.1 Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: IDE controller on PCI bus 00 dev 89 VP_IDE: chipset revision 6 VP_IDE: not 100% native mode: will probe irqs later ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: VIA vt8231 (rev 10) IDE UDMA100 controller on pci00:11.1 ide0: BM-DMA at 0x1820-0x1827, BIOS settings: hda:pio, hdb:pio ide1: BM-DMA at 0x1828-0x182f, BIOS settings: hdc:pio, hdd:pio hda: ST380020A, ATA DISK drive hdb: IBM-DTLA-305040, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 hda: 156301488 sectors (80026 MB) w/2048KiB Cache, CHS=155061/16/63, UDMA(100) hdb: 80418240 sectors (41174 MB) w/380KiB Cache, CHS=79780/16/63, UDMA(100) Partition check: hda: hda1 hdb: hdb1 RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize loop: loaded (max 8 devices) VIA Rhine Farmily Fast Ethernet Adapter Driver Ver. 4.11 Copyright (c) 2002 VIA Technologies, Inc. PCI: Found IRQ 6 for device 00:12.0 eth0: VIA VT6102 Rhine II Fast Ethernet Adapter eth0: MAC=00:02:F1:80:21:00 IO=0x1400 Mem=0xc8000000 IRQ=6 NET4: Linux TCP/IP 1.0 for NET4.0 IP Protocols: ICMP, UDP, TCP, IGMP IP: routing cache hash table of 512 buckets, 4Kbytes TCP: Hash tables configured (established 8192 bind 16384) NET4: Unix domain sockets 1.0/SMP for Linux NET4.0. RAMDISK: Compressed image found at block 0 Freeing initrd memory: 1084k freed VFS: Mounted root (ext2 filesystem). Freeing unused kernel memory: 224k freed init started: BusyBox v0.60.5 (2002.11.14-08:59+0000) multi-call binary ------------------------------------------------------------------------ Mounting local file systems: ok Starting system log daemon: ok setup network setting loop back interface setting network interface eth0: Link autonegation speed 100M bps full duplex pdvr_802100 login: root BusyBox v0.60.5 (2002.11.21-06:43+0000) Built-in shell (ash) Enter 'help' for a list of built-in commands. Welcome to ********** / # sfdisk -l Disk /dev/hda: 155061 cylinders, 16 heads, 63 sectors/track Units = cylinders of 516096 bytes, blocks of 1024 bytes, counting from 0 Device Boot Start End #cyls #blocks Id System /dev/hda1 0+ 155060 155061- 78150743+ 83 Linux /dev/hda2 0 - 0 0 0 Empty /dev/hda3 0 - 0 0 0 Empty /dev/hda4 0 - 0 0 0 Empty Disk /dev/hdb: 79780 cylinders, 16 heads, 63 sectors/track Units = cylinders of 516096 bytes, blocks of 1024 bytes, counting from 0 Device Boot Start End #cyls #blocks Id System /dev/hdb1 0+ 79779 79780- 40209119+ 83 Linux /dev/hdb2 0 - 0 0 0 Empty /dev/hdb3 0 - 0 0 0 Empty /dev/hdb4 0 - 0 0 0 Empty / # mkfs.ext3 /dev/hda1 mke2fs 1.32 (09-Nov-2002) ext2fs_check_if_mount: No such file or directory while determining whether /dev/hda1 is mounted. Filesystem label= OS type: Linux Block size=4096 (log=2) Fragment size=4096 (log=2) 9781248 inodes, 19537685 blocks 976884 blocks (5.00%) reserved for the super user First data block=0 597 block groups 32768 blocks per group, 32768 fragments per group 16384 inodes per group Superblock backups stored on blocks: 32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 4096000, 7962624, 11239424 Writing inode tables: 0/597 1/597 2/597 3/597 4/597 5/597 6/597 7/597 8/597Unable to handle kernel paging request at virtual address c58bc028 printing eip: c012c196 *pde = 00017063 *pte = 02a08f00 Oops: 0002 CPU: 0 EIP: 0010:[<c012c196>] Not tainted EFLAGS: 00010202 eax: c58bc0e0 ebx: 000000e0 ecx: 01000000 edx: c58bc020 esi: 00000020 edi: c125fdd4 ebp: c58bc000 esp: c6ff1e3c ds: 0018 es: 0018 ss: 0018 Process mkfs.ext3 (pid: 128, stackpage=c6ff1000) Stack: 00000001 000000f0 c125fddc c125fdd4 00000246 000000f0 c012c9a2 c125fdd4 000000f0 00000000 00000c00 00000400 00000001 c012c2ff c125fdd4 000000f0 c0135f44 c125fdd4 000000f0 c013601d 00000001 00000301 c12040a4 00001000 Call Trace: [<c012c9a2>] [<c012c2ff>] [<c0135f44>] [<c013601d>] [<c0136247>] [<c01367da>] [<c0135c3f>] [<c0136ea1>] [<c0139810>] [<c01398e9>] [<c0139810>] [<c012923f>] [<c01295bf>] [<c01340d5>] [<c0108ce3>] Code: 89 5a 08 c7 42 10 00 00 00 00 89 42 0c 89 d6 85 f6 0f 84 b0 Entering kdb (current=0xc6ff0000, pid 128) Oops: Oops due to oops @ 0xc012c196 eax = 0xc58bc0e0 ebx = 0x000000e0 ecx = 0x01000000 edx = 0xc58bc020 esi = 0x00000020 edi = 0xc125fdd4 esp = 0xc6ff1e3c eip = 0xc012c196 ebp = 0xc58bc000 xss = 0x00000018 xcs = 0x00000010 eflags = 0x00010202 xds = 0x00000018 xes = 0x00000018 origeax = 0xffffffff &regs = 0xc6ff1e08 kdb> go Segmentation fault / # / # mkreiserfs /dev/hdb1 <-------------mkreiserfs, 2002-------------> reiserfsprogs 3.6.4 mkreiserfs: Guessing about desired format.. mkreiserfs: Kernel 2.4.19-linuxbios_4 is running. Format 3.6 with standard journal Count of blocks on the device: 10052279 Number of blocks consumed by mkreiserfs formatting process: 8518 Blocksize: 4096 Hash function used to sort names: "r5" Journal Size 8193 blocks (first block 18) Journal Max transaction length 1024 inode generation number: 0 UUID: b6da3cd8-4519-46dc-a339-054a10774b88 ATTENTION: YOU SHOULD REBOOT AFTER FDISK! ALL DATA WILL BE LOST ON '/dev/hdb1'! Continue (y/n):y Initializing journal - 0%....20%....40%....Unable to handle kernel paging request at virtual address c58bc000 printing eip: c0234ea4 *pde = 00017063 *pte = 02828f00 Oops: 0002 CPU: 0 EIP: 0010:[<c0234ea4>] Not tainted EFLAGS: 00010246 eax: 00000000 ebx: c58bc000 ecx: 00001000 edx: 00000000 esi: 0806ed38 edi: c58bc000 ebp: c10152c8 esp: c6ff1f34 ds: 0018 es: 0018 ss: 0018 Process mkreiserfs (pid: 127, stackpage=c6ff1000) Stack: 00000000 00001000 00001000 c1204078 00000000 00001000 00000000 00000000 012e4000 00000000 c1015220 00000000 00000001 0806ed38 c101528c c1015220 c1285aa0 c01295bf c1285aa0 0806ed38 00001000 c1285ac0 0806ed38 c1285aa0 Call Trace: [<c01295bf>] [<c01340d5>] [<c0108ce3>] Code: f3 aa 58 59 e9 c0 43 ef ff b8 f2 ff ff ff 30 d2 e9 c8 78 ef Entering kdb (current=0xc6ff0000, pid 127) Oops: Oops due to oops @ 0xc0234ea4 eax = 0x00000000 ebx = 0xc58bc000 ecx = 0x00001000 edx = 0x00000000 esi = 0x0806ed38 edi = 0xc58bc000 esp = 0xc6ff1f34 eip = 0xc0234ea4 ebp = 0xc10152c8 xss = 0x00000018 xcs = 0x00000010 eflags = 0x00010246 xds = 0x00000018 xes = 0x00000018 origeax = 0xffffffff &regs = 0xc6ff1f00 kdb> go Segmentation fault / #

2 1

Problems with kexec-tools-1.7, missing library
by Gregg Levine 22 Nov '02

22 Nov '02

Hello from Gregg C Levine I just attempted to build the contents of kexec-tools-1.7, on a Slackware 8.0 system running the 2.2.19 kernel. It ran make all the way until it found a missing library to complain about. Basically, I don't know what one it is talking about. I promptly ran make again, after issuing a make clean. It repeated. I then created a script file, containing the efforts of my third time around. Also it happened when I issued the same commands, on version 1.0. Eric is the collection being built static, rather then dynamic? Anyway, I've attached the script file. Gregg C Levine drwho8(a)worldnet.att.net Magic word is "Grok!" Script started on Fri Nov 22 22:49:59 2002 root@drwho:/usr/src/lobos/kernel-patches/kexec/kexec-tools-1.7# make mkdir -p objdir/build/sbin gcc -Wall -g -O2 -fno-strict-aliasing -I./util_lib/include -DVERSION='"1.7"' -DRELEASE_DATE='"18 November 2002"' -static -o objdir/build/sbin/kexec ./objdir/kexec/kexec.o ./objdir/kexec/kexec-syscall.o ./objdir/kexec/kexec-x86.o ./objdir/kexec/kexec-elf32-x86.o ./objdir/kexec/kexec-bzImage.o ./objdir/kexec/ifdown.o ./objdir/kexec/x86-setup-32.o ./objdir/kexec/x86-setup-16.o ./objdir/kexec/x86-setup-16-debug.o ./objdir/libutil.a /usr/i386-slackware-linux/bin/ld: cannot find -lc collect2: ld returned 1 exit status make: *** [objdir/build/sbin/kexec] Error 1 root@drwho:/usr/src/lobos/kernel-patches/kexec/kexec-tools-1.7# exit Script done on Fri Nov 22 22:50:12 2002

2 1

SPARC
by Ian Molton 22 Nov '02

22 Nov '02

Hi. Has anyone ever flashed a javastation 'flash simm' somehow and gotten linux into it?

1 0

pci_set_method() and bochs
by Andrew Kohlsmith 21 Nov '02

21 Nov '02

I am debugging my bochs-makes-the-bios-jump-off-to-never-never-land problem and have just realized that the linuxbios_c.map file shows me the RAM addresses (bliss!). I've been tracking this back and have traced it down to lib/newpci.c, line 274, where a far call to a null pointer seems to occur because struct pci_ops *conf is never assigned a value. pci_set_method() assigns it a value, but under bochs neither PCI direct method 1 nor 2 works. I suppose I could hack around it but I'm wondering if anyone has done anything a little more slick than that. I'm reluctant to just flash one of these boards because if she don't boot, I have to unsolder a TQFP, buy an adaptor to reflash it, (probably buy a TQFP socket too while I'm at it), and try again. :-) Regards, Andrew

3 5

ELF Parameter Passing....
by ebiederman＠lnxi.com 20 Nov '02

20 Nov '02

While working on the itanium port of etherboot I have come to the issue of how best to pass parameters to the newly loaded kernel. What I would like to achieve is to have a single method that will work for all situations, not just etherboot. Currently I have three bootloaders I care about etherboot. kexec which runs under the Linux kernel. And the ELF loader in LinuxBIOS. Requirements. - Ability to pass different pieces of information, as different bootloaders have different information they want to pass. - C calling convention for ease of use, and cross platform predictability. - Backwards compatibility. Basically it should be possible to test to see if you were passed the new parameters instead of whatever legacy way of passing parameters is present. - Extensibility. Each bootloader can go their own way and add additional pieces of information without needing to sync with any universal authority. - Ignoreability. It should be legal and even recommended for the loaded image to ignore the options passed to it, if it has a better source for that information. Getting this right is important because on the Itanium, at least when running under efi I must pass the memory map to the loaded kernel. What I am thinking is something like: typedef uint16_t Elf_Half; typedef uint32_t Elf_Word; typedef struct { Elf_Word b_signature; /* 0xE1FB007 */ Elf_Word b_size; Elf_Half b_checksum; Elf_Half b_records; } Elf_Bhdr; typedef struct { Elf_Word n_namesz; Elf_Word n_desc; Elf_Word n_type; } Elf_Nhdr; Followed by an array of elf notes. int entry(Elf_Bhdr *table); The important parts are passing a single parameter that is a pointer, so the function signature never needs to change, and for a simple bootloader everything can be hardcoded. Tagged table entries, which know their length, so even unknown entries can be skipped. And tags on the table entries that do not need a central authority to assign. Plus enough redundancy to see that the passed data is valid. Roughly this is what I have proposed before for a standard except for using the C calling conventions. If there is a better proposal, or something more standard (say what the open firmware platforms are doing) I am still open to discussion. But if I don't hear anything this is what I will implement. Eric

1 0

[ANNOUNCE][CFT] kexec for v2.5.48 && kexec-tools-1.7
by ebiederm＠xmission.com 20 Nov '02

20 Nov '02

kexec is a set of systems call that allows you to load another kernel from the currently executing Linux kernel. The current implementation has only been tested, and had the kinks worked out on x86, but the generic code should work on any architecture. Could I get some feed back on where this work and where this breaks. With the maturation of kexec-tools to skip attempting bios calls, I expect a new the linux kernel to load for most people. Though I also expect some device drivers will not reinitialize after the reboot. The patch is archived at: http://www.xmission.com/~ebiederm/files/kexec/ And is currently kept in two pieces. The pure system call. http://www.xmission.com/~ebiederm/files/kexec/linux-2.5.48.x86kexec.diff And the set of hardware fixes known to help kexec. http://www.xmission.com/~ebiederm/files/kexec/linux-2.5.48.x86kexec-hwfixes… A compatible user space is at: http://www.xmission.com/~ebiederm/files/kexec/kexec-tools-1.7.tar.gz This code boots either a static ELF executable or a bzImage. As of version 1.6 /sbin/kexec now works much more like /sbin/reboot. It is recommend you place /sbin/kexec -e in /etc/init.d/reboot just before the the call to /sbin/reboot. If you haven't called /sbin/kexec previously it will fail, and you can then call /sbin/reboot. Given the similiarity it is now the plan to merge in reboot via kexec into /sbin/reboot. One bug was fixed in the move to 2.5.48. Previously I had failed to clear PAE and PSE in the kernel. This caused reboot failures when CONFIG_HIGHMEM_64G was enabled, as the new kernel would fail when enabling paging, as these bits remained set. Is %cr4 present on all 386+ intel cpus, or do I need to conditionalize the code that accesses it? As of version 1.6 /sbin/kexec when presented with a bzImage by default avoids all BIOS calls and jumps directly to the kernels 32 bit entry point. The information it would usually get from the BIOS is instead collected from the current kernel. Accurately getting things like the BIOS memory map from the current kernel is a challenge, still needs to be addressed. Safe defaults have been provided for the cases I do not currently have good code to gather the information from the running kernel. In bug reports please include the serial console output of kexec kexec_test. kexec_test exercises most of the interesting code paths that are needed to load a kernel (mainly BIOS calls) with lots of debugging print statements, so hangs can easily be detected. Eric MAINTAINERS | 7 arch/i386/Kconfig | 17 arch/i386/kernel/Makefile | 1 arch/i386/kernel/entry.S | 2 arch/i386/kernel/machine_kexec.c | 142 ++++++++ arch/i386/kernel/relocate_kernel.S | 107 ++++++ include/asm-i386/kexec.h | 25 + include/asm-i386/unistd.h | 2 include/linux/kexec.h | 45 ++ include/linux/reboot.h | 2 kernel/Makefile | 1 kernel/kexec.c | 640 +++++++++++++++++++++++++++++++++++++ kernel/sys.c | 23 + 13 files changed, 1012 insertions, 2 deletions diff -uNr linux-2.5.48/MAINTAINERS linux-2.5.48.x86kexec/MAINTAINERS --- linux-2.5.48/MAINTAINERS Mon Nov 11 00:22:33 2002 +++ linux-2.5.48.x86kexec/MAINTAINERS Sun Nov 17 22:53:09 2002 @@ -968,6 +968,13 @@ W: http://www.cse.unsw.edu.au/~neilb/patches/linux-devel/ S: Maintained +KEXEC +P: Eric Biederman +M: ebiederm(a)xmission.com +M: ebiederman(a)lnxi.com +L: linux-kernel(a)vger.kernel.org +S: Maintained + LANMEDIA WAN CARD DRIVER P: Andrew Stanley-Jones M: asj(a)lanmedia.com diff -uNr linux-2.5.48/arch/i386/Kconfig linux-2.5.48.x86kexec/arch/i386/Kconfig --- linux-2.5.48/arch/i386/Kconfig Sun Nov 17 22:51:14 2002 +++ linux-2.5.48.x86kexec/arch/i386/Kconfig Sun Nov 17 22:53:09 2002 @@ -784,6 +784,23 @@ depends on (SMP || PREEMPT) && X86_CMPXCHG default y +config KEXEC + bool "kexec system call (EXPERIMENTAL)" + depends on EXPERIMENTAL + help + kexec is a system call that implements the ability to shutdown your + current kernel, and to start another kernel. It is like a reboot + but it is indepedent of the system firmware. And like a reboot + you can start any kernel with it not just Linux. + + The name comes from the similiarity to the exec system call. + + It is on an going process to be certain the hardware in a machine + is properly shutdown, so do not be surprised if this code does not + initially work for you. It may help to enable device hotplugging + support. As of this writing the exact hardware interface is + strongly in flux, so no good recommendation can be made. + endmenu diff -uNr linux-2.5.48/arch/i386/kernel/Makefile linux-2.5.48.x86kexec/arch/i386/kernel/Makefile --- linux-2.5.48/arch/i386/kernel/Makefile Sun Nov 17 22:51:14 2002 +++ linux-2.5.48.x86kexec/arch/i386/kernel/Makefile Sun Nov 17 22:53:09 2002 @@ -24,6 +24,7 @@ obj-$(CONFIG_X86_MPPARSE) += mpparse.o obj-$(CONFIG_X86_LOCAL_APIC) += apic.o nmi.o obj-$(CONFIG_X86_IO_APIC) += io_apic.o +obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o obj-$(CONFIG_SOFTWARE_SUSPEND) += suspend.o suspend_asm.o obj-$(CONFIG_X86_NUMAQ) += numaq.o obj-$(CONFIG_PROFILING) += profile.o diff -uNr linux-2.5.48/arch/i386/kernel/entry.S linux-2.5.48.x86kexec/arch/i386/kernel/entry.S --- linux-2.5.48/arch/i386/kernel/entry.S Sun Nov 17 22:51:14 2002 +++ linux-2.5.48.x86kexec/arch/i386/kernel/entry.S Sun Nov 17 22:56:43 2002 @@ -768,7 +768,7 @@ .long sys_epoll_wait .long sys_remap_file_pages .long sys_set_tid_address - + .long sys_kexec_load .rept NR_syscalls-(.-sys_call_table)/4 .long sys_ni_syscall diff -uNr linux-2.5.48/arch/i386/kernel/machine_kexec.c linux-2.5.48.x86kexec/arch/i386/kernel/machine_kexec.c --- linux-2.5.48/arch/i386/kernel/machine_kexec.c Wed Dec 31 17:00:00 1969 +++ linux-2.5.48.x86kexec/arch/i386/kernel/machine_kexec.c Sun Nov 17 22:53:09 2002 @@ -0,0 +1,142 @@ +#include <linux/config.h> +#include <linux/mm.h> +#include <linux/kexec.h> +#include <linux/delay.h> +#include <asm/pgtable.h> +#include <asm/pgalloc.h> +#include <asm/tlbflush.h> +#include <asm/io.h> +#include <asm/apic.h> + + +/* + * machine_kexec + * ======================= + */ + + +static void set_idt(void *newidt, __u16 limit) +{ + unsigned char curidt[6]; + + /* ia32 supports unaliged loads & stores */ + (*(__u16 *)(curidt)) = limit; + (*(__u32 *)(curidt +2)) = (unsigned long)(newidt); + + __asm__ __volatile__ ( + "lidt %0\n" + : "=m" (curidt) + ); +}; + + +static void set_gdt(void *newgdt, __u16 limit) +{ + unsigned char curgdt[6]; + + /* ia32 supports unaliged loads & stores */ + (*(__u16 *)(curgdt)) = limit; + (*(__u32 *)(curgdt +2)) = (unsigned long)(newgdt); + + __asm__ __volatile__ ( + "lgdt %0\n" + : "=m" (curgdt) + ); +}; + +static void load_segments(void) +{ +#define __STR(X) #X +#define STR(X) __STR(X) + + __asm__ __volatile__ ( + "\tljmp $"STR(__KERNEL_CS)",$1f\n" + "\t1:\n" + "\tmovl $"STR(__KERNEL_DS)",%eax\n" + "\tmovl %eax,%ds\n" + "\tmovl %eax,%es\n" + "\tmovl %eax,%fs\n" + "\tmovl %eax,%gs\n" + "\tmovl %eax,%ss\n" + ); +#undef STR +#undef __STR +} + +static void identity_map_page(unsigned long address) +{ + /* This code is x86 specific... + * general purpose code must be more carful + * of caches and tlbs... + */ + pgd_t *pgd; + pmd_t *pmd; + struct mm_struct *mm = current->mm; + spin_lock(&mm->page_table_lock); + + pgd = pgd_offset(mm, address); + pmd = pmd_alloc(mm, pgd, address); + + if (pmd) { + pte_t *pte = pte_alloc_map(mm, pmd, address); + if (pte) { + set_pte(pte, + mk_pte(virt_to_page(phys_to_virt(address)), + PAGE_SHARED)); + __flush_tlb_one(address); + } + } + spin_unlock(&mm->page_table_lock); +} + + +typedef void (*relocate_new_kernel_t)( + unsigned long indirection_page, unsigned long reboot_code_buffer, + unsigned long start_address); + +const extern unsigned char relocate_new_kernel[]; +extern void relocate_new_kernel_end(void); +const extern unsigned int relocate_new_kernel_size; + +void machine_kexec(struct kimage *image) +{ + unsigned long *indirection_page; + void *reboot_code_buffer; + relocate_new_kernel_t rnk; + + /* Interrupts aren't acceptable while we reboot */ + local_irq_disable(); + reboot_code_buffer = image->reboot_code_buffer; + indirection_page = phys_to_virt(image->head & PAGE_MASK); + + identity_map_page(virt_to_phys(reboot_code_buffer)); + + /* copy it out */ + memcpy(reboot_code_buffer, relocate_new_kernel, + relocate_new_kernel_size); + + /* The segment registers are funny things, they are + * automatically loaded from a table, in memory wherever you + * set them to a specific selector, but this table is never + * accessed again you set the segment to a different selector. + * + * The more common model is are caches where the behide + * the scenes work is done, but is also dropped at arbitrary + * times. + * + * I take advantage of this here by force loading the + * segments, before I zap the gdt with an invalid value. + */ + load_segments(); + /* The gdt & idt are now invalid. + * If you want to load them you must set up your own idt & gdt. + */ + set_gdt(phys_to_virt(0),0); + set_idt(phys_to_virt(0),0); + + /* now call it */ + rnk = (relocate_new_kernel_t) virt_to_phys(reboot_code_buffer); + (*rnk)(virt_to_phys(indirection_page), virt_to_phys(reboot_code_buffer), + image->start); +} + diff -uNr linux-2.5.48/arch/i386/kernel/relocate_kernel.S linux-2.5.48.x86kexec/arch/i386/kernel/relocate_kernel.S --- linux-2.5.48/arch/i386/kernel/relocate_kernel.S Wed Dec 31 17:00:00 1969 +++ linux-2.5.48.x86kexec/arch/i386/kernel/relocate_kernel.S Sun Nov 17 23:58:29 2002 @@ -0,0 +1,107 @@ +#include <linux/config.h> +#include <linux/linkage.h> + + /* Must be relocatable PIC code callable as a C function, that once + * it starts can not use the previous processes stack. + * + */ + .globl relocate_new_kernel +relocate_new_kernel: + /* read the arguments and say goodbye to the stack */ + movl 4(%esp), %ebx /* indirection_page */ + movl 8(%esp), %ebp /* reboot_code_buffer */ + movl 12(%esp), %edx /* start address */ + + /* zero out flags, and disable interrupts */ + pushl $0 + popfl + + /* set a new stack at the bottom of our page... */ + lea 4096(%ebp), %esp + + /* store the parameters back on the stack */ + pushl %edx /* store the start address */ + + /* Set cr0 to a known state: + * 31 0 == Paging disabled + * 18 0 == Alignment check disabled + * 16 0 == Write protect disabled + * 3 0 == No task switch + * 2 0 == Don't do FP software emulation. + * 0 1 == Proctected mode enabled + */ + movl %cr0, %eax + andl $~((1<<31)|(1<<18)|(1<<16)|(1<<3)|(1<<2)), %eax + orl $(1<<0), %eax + movl %eax, %cr0 + + /* Set cr4 to a known state: + * Setting everything to zero seems safe. + */ + movl %cr4, %eax + andl $0, %eax + movl %eax, %cr4 + + jmp 1f +1: + + /* Flush the TLB (needed?) */ + xorl %eax, %eax + movl %eax, %cr3 + + /* Do the copies */ + cld +0: /* top, read another word for the indirection page */ + movl %ebx, %ecx + movl (%ebx), %ecx + addl $4, %ebx + testl $0x1, %ecx /* is it a destination page */ + jz 1f + movl %ecx, %edi + andl $0xfffff000, %edi + jmp 0b +1: + testl $0x2, %ecx /* is it an indirection page */ + jz 1f + movl %ecx, %ebx + andl $0xfffff000, %ebx + jmp 0b +1: + testl $0x4, %ecx /* is it the done indicator */ + jz 1f + jmp 2f +1: + testl $0x8, %ecx /* is it the source indicator */ + jz 0b /* Ignore it otherwise */ + movl %ecx, %esi /* For every source page do a copy */ + andl $0xfffff000, %esi + + movl $1024, %ecx + rep ; movsl + jmp 0b + +2: + + /* To be certain of avoiding problems with self modifying code + * I need to execute a serializing instruction here. + * So I flush the TLB, it's handy, and not processor dependent. + */ + xorl %eax, %eax + movl %eax, %cr3 + + /* set all of the registers to known values */ + /* leave %esp alone */ + + xorl %eax, %eax + xorl %ebx, %ebx + xorl %ecx, %ecx + xorl %edx, %edx + xorl %esi, %esi + xorl %edi, %edi + xorl %ebp, %ebp + ret +relocate_new_kernel_end: + + .globl relocate_new_kernel_size +relocate_new_kernel_size: + .long relocate_new_kernel_end - relocate_new_kernel diff -uNr linux-2.5.48/include/asm-i386/kexec.h linux-2.5.48.x86kexec/include/asm-i386/kexec.h --- linux-2.5.48/include/asm-i386/kexec.h Wed Dec 31 17:00:00 1969 +++ linux-2.5.48.x86kexec/include/asm-i386/kexec.h Sun Nov 17 22:53:09 2002 @@ -0,0 +1,25 @@ +#ifndef _I386_KEXEC_H +#define _I386_KEXEC_H + +#include <asm/fixmap.h> + +/* + * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return. + * I.e. Maximum page that is mapped directly into kernel memory, + * and kmap is not required. + * + * Someone correct me if FIXADDR_START - PAGEOFFSET is not the correct + * calculation for the amount of memory directly mappable into the + * kernel memory space. + */ + +/* Maximum physical address we can use pages from */ +#define KEXEC_SOURCE_MEMORY_LIMIT (FIXADDR_START - PAGE_OFFSET) +/* Maximum address we can reach in physical address mode */ +#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) + +#define KEXEC_REBOOT_CODE_SIZE 4096 +#define KEXEC_REBOOT_CODE_ALIGN 0 + + +#endif /* _I386_KEXEC_H */ diff -uNr linux-2.5.48/include/asm-i386/unistd.h linux-2.5.48.x86kexec/include/asm-i386/unistd.h --- linux-2.5.48/include/asm-i386/unistd.h Sun Nov 17 22:51:25 2002 +++ linux-2.5.48.x86kexec/include/asm-i386/unistd.h Sun Nov 17 22:54:03 2002 @@ -263,7 +263,7 @@ #define __NR_sys_epoll_wait 256 #define __NR_remap_file_pages 257 #define __NR_set_tid_address 258 - +#define __NR_sys_kexec_load 259 /* user-visible error numbers are in the range -1 - -124: see <asm-i386/errno.h> */ diff -uNr linux-2.5.48/include/linux/kexec.h linux-2.5.48.x86kexec/include/linux/kexec.h --- linux-2.5.48/include/linux/kexec.h Wed Dec 31 17:00:00 1969 +++ linux-2.5.48.x86kexec/include/linux/kexec.h Sun Nov 17 22:53:09 2002 @@ -0,0 +1,45 @@ +#ifndef LINUX_KEXEC_H +#define LINUX_KEXEC_H + +#if CONFIG_KEXEC +#include <linux/types.h> +#include <asm/kexec.h> + +/* + * This structure is used to hold the arguments that are used when loading + * kernel binaries. + */ + +typedef unsigned long kimage_entry_t; +#define IND_DESTINATION 0x1 +#define IND_INDIRECTION 0x2 +#define IND_DONE 0x4 +#define IND_SOURCE 0x8 + +struct kimage { + kimage_entry_t head; + kimage_entry_t *entry; + kimage_entry_t *last_entry; + + unsigned long destination; + unsigned long offset; + + unsigned long start; + void *reboot_code_buffer; +}; + +struct kexec_segment { + void *buf; + size_t bufsz; + void *mem; + size_t memsz; +}; + +/* kexec interface functions */ +extern void machine_kexec(struct kimage *image); +extern asmlinkage long sys_kexec(unsigned long entry, long nr_segments, + struct kexec_segment *segments); +extern struct kimage *kexec_image; +#endif +#endif /* LINUX_KEXEC_H */ + diff -uNr linux-2.5.48/include/linux/reboot.h linux-2.5.48.x86kexec/include/linux/reboot.h --- linux-2.5.48/include/linux/reboot.h Fri Oct 11 22:22:47 2002 +++ linux-2.5.48.x86kexec/include/linux/reboot.h Sun Nov 17 22:53:09 2002 @@ -21,6 +21,7 @@ * POWER_OFF Stop OS and remove all power from system, if possible. * RESTART2 Restart system using given command string. * SW_SUSPEND Suspend system using Software Suspend if compiled in + * KEXEC Restart the system using a different kernel. */ #define LINUX_REBOOT_CMD_RESTART 0x01234567 @@ -30,6 +31,7 @@ #define LINUX_REBOOT_CMD_POWER_OFF 0x4321FEDC #define LINUX_REBOOT_CMD_RESTART2 0xA1B2C3D4 #define LINUX_REBOOT_CMD_SW_SUSPEND 0xD000FCE2 +#define LINUX_REBOOT_CMD_KEXEC 0x45584543 #ifdef __KERNEL__ diff -uNr linux-2.5.48/kernel/Makefile linux-2.5.48.x86kexec/kernel/Makefile --- linux-2.5.48/kernel/Makefile Sun Nov 17 22:51:26 2002 +++ linux-2.5.48.x86kexec/kernel/Makefile Sun Nov 17 22:53:09 2002 @@ -21,6 +21,7 @@ obj-$(CONFIG_CPU_FREQ) += cpufreq.o obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o obj-$(CONFIG_SOFTWARE_SUSPEND) += suspend.o +obj-$(CONFIG_KEXEC) += kexec.o ifneq ($(CONFIG_IA64),y) # According to Alan Modra <alan(a)linuxcare.com.au>, the -fno-omit-frame-pointer is diff -uNr linux-2.5.48/kernel/kexec.c linux-2.5.48.x86kexec/kernel/kexec.c --- linux-2.5.48/kernel/kexec.c Wed Dec 31 17:00:00 1969 +++ linux-2.5.48.x86kexec/kernel/kexec.c Sun Nov 17 22:53:09 2002 @@ -0,0 +1,640 @@ +#include <linux/mm.h> +#include <linux/file.h> +#include <linux/slab.h> +#include <linux/fs.h> +#include <linux/version.h> +#include <linux/compile.h> +#include <linux/kexec.h> +#include <linux/spinlock.h> +#include <net/checksum.h> +#include <asm/page.h> +#include <asm/uaccess.h> +#include <asm/io.h> +#include <asm/system.h> + +/* As designed kexec can only use the memory that you don't + * need to use kmap to access. Memory that you can use virt_to_phys() + * on an call get_free_page to allocate. + * + * In the best case you need one page for the transition from + * virtual to physical memory. And this page must be identity + * mapped. Which pretty much leaves you with pages < PAGE_OFFSET + * as you can only mess with user pages. + * + * As the only subset of memory that it is easy to restrict allocation + * to is the physical memory mapped into the kernel, I do that + * with get_free_page and hope it is enough. + * + * I don't know of a good way to do this calcuate which pages get_free_page + * will return independent of architecture so I depend on + * <asm/kexec.h> to properly set + * KEXEC_SOURCE_MEMORY_LIMIT and KEXEC_DESTINATION_MEMORY_LIMIT + * + */ + +static struct kimage *kimage_alloc(void) +{ + struct kimage *image; + image = kmalloc(sizeof(*image), GFP_KERNEL); + if (!image) + return 0; + memset(image, 0, sizeof(*image)); + image->head = 0; + image->entry = &image->head; + image->last_entry = &image->head; + return image; +} +static int kimage_add_entry(struct kimage *image, kimage_entry_t entry) +{ + if (image->offset != 0) { + image->entry++; + } + if (image->entry == image->last_entry) { + kimage_entry_t *ind_page; + ind_page = (void *)__get_free_page(GFP_KERNEL); + if (!ind_page) { + return -ENOMEM; + } + *image->entry = virt_to_phys(ind_page) | IND_INDIRECTION; + image->entry = ind_page; + image->last_entry = + ind_page + ((PAGE_SIZE/sizeof(kimage_entry_t)) - 1); + } + *image->entry = entry; + image->entry++; + image->offset = 0; + return 0; +} + +static int kimage_verify_destination(unsigned long destination) +{ + int result; + + /* Assume the page is bad unless we pass the checks */ + result = -EADDRNOTAVAIL; + + if (destination >= KEXEC_DESTINATION_MEMORY_LIMIT) { + goto out; + } + + /* NOTE: The caller is responsible for making certain we + * don't attempt to load the new image into invalid or + * reserved areas of RAM. + */ + result = 0; +out: + return result; +} + +static int kimage_set_destination( + struct kimage *image, unsigned long destination) +{ + int result; + destination &= PAGE_MASK; + result = kimage_verify_destination(destination); + if (result) { + return result; + } + result = kimage_add_entry(image, destination | IND_DESTINATION); + if (result == 0) { + image->destination = destination; + } + return result; +} + + +static int kimage_add_page(struct kimage *image, unsigned long page) +{ + int result; + page &= PAGE_MASK; + result = kimage_verify_destination(image->destination); + if (result) { + return result; + } + result = kimage_add_entry(image, page | IND_SOURCE); + if (result == 0) { + image->destination += PAGE_SIZE; + } + return result; +} + + +static int kimage_terminate(struct kimage *image) +{ + int result; + result = kimage_add_entry(image, IND_DONE); + if (result == 0) { + /* Point at the terminating element */ + image->entry--; + } + return result; +} + +#define for_each_kimage_entry(image, ptr, entry) \ + for (ptr = &image->head; (entry = *ptr) && !(entry & IND_DONE); \ + ptr = (entry & IND_INDIRECTION)? \ + phys_to_virt((entry & PAGE_MASK)): ptr +1) + +static void kimage_free(struct kimage *image) +{ + kimage_entry_t *ptr, entry; + kimage_entry_t ind = 0; + if (!image) + return; + for_each_kimage_entry(image, ptr, entry) { + if (entry & IND_INDIRECTION) { + /* Free the previous indirection page */ + if (ind & IND_INDIRECTION) { + free_page((unsigned long)phys_to_virt(ind & PAGE_MASK)); + } + /* Save this indirection page until we are + * done with it. + */ + ind = entry; + } + else if (entry & IND_SOURCE) { + free_page((unsigned long)phys_to_virt(entry & PAGE_MASK)); + } + } + kfree(image); +} + +static int kimage_is_destination_page( + struct kimage *image, unsigned long page) +{ + kimage_entry_t *ptr, entry; + unsigned long destination; + destination = 0; + page &= PAGE_MASK; + for_each_kimage_entry(image, ptr, entry) { + if (entry & IND_DESTINATION) { + destination = entry & PAGE_MASK; + } + else if (entry & IND_SOURCE) { + if (page == destination) { + return 1; + } + destination += PAGE_SIZE; + } + } + return 0; +} + +static int kimage_get_unused_area( + struct kimage *image, unsigned long size, unsigned long align, + unsigned long *area) +{ + /* Walk through mem_map and find the first chunk of + * ununsed memory that is at least size bytes long. + */ + /* Since the kernel plays with Page_Reseved mem_map is less + * than ideal for this purpose, but it will give us a correct + * conservative estimate of what we need to do. + */ + /* For now we take advantage of the fact that all kernel pages + * are marked with PG_resereved to allocate a large + * contiguous area for the reboot code buffer. + */ + unsigned long addr; + unsigned long start, end; + unsigned long mask; + mask = ((1 << align) -1); + start = end = PAGE_SIZE; + for(addr = PAGE_SIZE; addr < KEXEC_SOURCE_MEMORY_LIMIT; addr += PAGE_SIZE) { + struct page *page; + unsigned long aligned_start; + page = virt_to_page(phys_to_virt(addr)); + if (PageReserved(page) || + kimage_is_destination_page(image, addr)) { + /* The current page is reserved so the start & + * end of the next area must be atleast at the + * next page. + */ + start = end = addr + PAGE_SIZE; + } + else { + /* O.k. The current page isn't reserved + * so push up the end of the area. + */ + end = addr; + } + aligned_start = (start + mask) & ~mask; + if (aligned_start > start) { + continue; + } + if (aligned_start > end) { + continue; + } + if (end - aligned_start >= size) { + *area = aligned_start; + return 0; + } + } + *area = 0; + return -ENOSPC; +} + +static kimage_entry_t *kimage_dst_conflict( + struct kimage *image, unsigned long page, kimage_entry_t *limit) +{ + kimage_entry_t *ptr, entry; + unsigned long destination = 0; + for_each_kimage_entry(image, ptr, entry) { + if (ptr == limit) { + return 0; + } + else if (entry & IND_DESTINATION) { + destination = entry & PAGE_MASK; + } + else if (entry & IND_SOURCE) { + if (page == destination) { + return ptr; + } + destination += PAGE_SIZE; + } + } + return 0; +} + +static kimage_entry_t *kimage_src_conflict( + struct kimage *image, unsigned long destination, kimage_entry_t *limit) +{ + kimage_entry_t *ptr, entry; + for_each_kimage_entry(image, ptr, entry) { + unsigned long page; + if (ptr == limit) { + return 0; + } + else if (entry & IND_DESTINATION) { + /* nop */ + } + else if (entry & IND_DONE) { + /* nop */ + } + else { + /* SOURCE & INDIRECTION */ + page = entry & PAGE_MASK; + if (page == destination) { + return ptr; + } + } + } + return 0; +} + +static int kimage_get_off_destination_pages(struct kimage *image) +{ + kimage_entry_t *ptr, *cptr, entry; + unsigned long buffer, page; + unsigned long destination = 0; + + /* Here we implement safe guards to insure that + * a source page is not copied to it's destination + * page before the data on the destination page is + * no longer useful. + * + * To make it work we actually wind up with a + * stronger condition. For every page considered + * it is either it's own destination page or it is + * not a destination page of any page considered. + * + * Invariants + * 1. buffer is not a destination of a previous page. + * 2. page is not a destination of a previous page. + * 3. destination is not a previous source page. + * + * Result: Either a source page and a destination page + * are the same or the page is not a destination page. + * + * These checks could be done when we allocate the pages, + * but doing it as a final pass allows us more freedom + * on how we allocate pages. + * + * Also while the checks are necessary, in practice nothing + * happens. The destination kernel wants to sit in the + * same physical addresses as the current kernel so we never + * actually allocate a destination page. + * + * BUGS: This is a O(N^2) algorithm. + */ + + + buffer = __get_free_page(GFP_KERNEL); + if (!buffer) { + return -ENOMEM; + } + buffer = virt_to_phys((void *)buffer); + for_each_kimage_entry(image, ptr, entry) { + /* Here we check to see if an allocated page */ + kimage_entry_t *limit; + if (entry & IND_DESTINATION) { + destination = entry & PAGE_MASK; + } + else if (entry & IND_INDIRECTION) { + /* Indirection pages must include all of their + * contents in limit checking. + */ + limit = phys_to_virt(page + PAGE_SIZE - sizeof(*limit)); + } + if (!((entry & IND_SOURCE) | (entry & IND_INDIRECTION))) { + continue; + } + page = entry & PAGE_MASK; + limit = ptr; + + /* See if a previous page has the current page as it's + * destination. + * i.e. invariant 2 + */ + cptr = kimage_dst_conflict(image, page, limit); + if (cptr) { + unsigned long cpage; + kimage_entry_t centry; + centry = *cptr; + cpage = centry & PAGE_MASK; + memcpy(phys_to_virt(buffer), phys_to_virt(page), PAGE_SIZE); + memcpy(phys_to_virt(page), phys_to_virt(cpage), PAGE_SIZE); + *cptr = page | (centry & ~PAGE_MASK); + *ptr = buffer | (entry & ~PAGE_MASK); + buffer = cpage; + } + if (!(entry & IND_SOURCE)) { + continue; + } + + /* See if a previous page is our destination page. + * If so claim it now. + * i.e. invariant 3 + */ + cptr = kimage_src_conflict(image, destination, limit); + if (cptr) { + unsigned long cpage; + kimage_entry_t centry; + centry = *cptr; + cpage = centry & PAGE_MASK; + memcpy(phys_to_virt(buffer), phys_to_virt(cpage), PAGE_SIZE); + memcpy(phys_to_virt(cpage), phys_to_virt(page), PAGE_SIZE); + *cptr = buffer | (centry & ~PAGE_MASK); + *ptr = cpage | ( entry & ~PAGE_MASK); + buffer = page; + } + /* If the buffer is my destination page do the copy now + * i.e. invariant 3 & 1 + */ + if (buffer == destination) { + memcpy(phys_to_virt(buffer), phys_to_virt(page), PAGE_SIZE); + *ptr = buffer | (entry & ~PAGE_MASK); + buffer = page; + } + } + free_page((unsigned long)phys_to_virt(buffer)); + return 0; +} + +static int kimage_add_empty_pages(struct kimage *image, + unsigned long len) +{ + unsigned long pos; + int result; + for(pos = 0; pos < len; pos += PAGE_SIZE) { + char *page; + result = -ENOMEM; + page = (void *)__get_free_page(GFP_KERNEL); + if (!page) { + goto out; + } + result = kimage_add_page(image, virt_to_phys(page)); + if (result) { + goto out; + } + } + result = 0; + out: + return result; +} + + +static int kimage_load_segment(struct kimage *image, + struct kexec_segment *segment) +{ + unsigned long mstart; + int result; + unsigned long offset; + unsigned long offset_end; + unsigned char *buf; + + result = 0; + buf = segment->buf; + mstart = (unsigned long)segment->mem; + + offset_end = segment->memsz; + + result = kimage_set_destination(image, mstart); + if (result < 0) { + goto out; + } + for(offset = 0; offset < segment->memsz; offset += PAGE_SIZE) { + char *page; + size_t size, leader; + page = (char *)__get_free_page(GFP_KERNEL); + if (page == 0) { + result = -ENOMEM; + goto out; + } + result = kimage_add_page(image, virt_to_phys(page)); + if (result < 0) { + goto out; + } + if (segment->bufsz < offset) { + /* We are past the end zero the whole page */ + memset(page, 0, PAGE_SIZE); + continue; + } + size = PAGE_SIZE; + leader = 0; + if ((offset == 0)) { + leader = mstart & ~PAGE_MASK; + } + if (leader) { + /* We are on the first page zero the unused portion */ + memset(page, 0, leader); + size -= leader; + page += leader; + } + if (size > (segment->bufsz - offset)) { + size = segment->bufsz - offset; + } + result = copy_from_user(page, buf + offset, size); + if (result) { + result = (result < 0)?result : -EIO; + goto out; + } + if (size < (PAGE_SIZE - leader)) { + /* zero the trailing part of the page */ + memset(page + size, 0, (PAGE_SIZE - leader) - size); + } + } + out: + return result; +} + + +/* do_kexec executes a new kernel + */ +static int do_kexec(unsigned long start, unsigned long nr_segments, + struct kexec_segment *arg_segments, struct kimage *image) +{ + struct kexec_segment *segments; + size_t segment_bytes; + int i; + + int result; + unsigned long reboot_code_buffer; + kimage_entry_t *end; + + /* Initialize variables */ + segments = 0; + + segment_bytes = nr_segments * sizeof(*segments); + segments = kmalloc(GFP_KERNEL, segment_bytes); + if (segments == 0) { + result = -ENOMEM; + goto out; + } + result = copy_from_user(segments, arg_segments, segment_bytes); + if (result) { + goto out; + } + + /* Read in the data from user space */ + image->start = start; + for(i = 0; i < nr_segments; i++) { + result = kimage_load_segment(image, &segments[i]); + if (result) { + goto out; + } + } + + /* Terminate early so I can get a place holder. */ + result = kimage_terminate(image); + if (result) + goto out; + end = image->entry; + + /* Usage of the reboot code buffer is subtle. We first + * find a continguous area of ram, that is not one + * of our destination pages. We do not allocate the ram. + * + * The algorithm to make certain we do not have address + * conflicts requires each destination region to have some + * backing store so we allocate abitrary source pages. + * + * Later in machine_kexec when we copy data to the + * reboot_code_buffer it still may be allocated for other + * purposes, but we do know there are no source or destination + * pages in that area. And since the rest of the kernel + * is already shutdown those pages are free for use, + * regardless of their page->count values. + * + * The kernel mapping is of the reboot code buffer is passed to + * the machine dependent code. If it needs something else + * it is free to set that up. + */ + result = kimage_get_unused_area( + image, KEXEC_REBOOT_CODE_SIZE, KEXEC_REBOOT_CODE_ALIGN, + &reboot_code_buffer); + if (result) + goto out; + + /* Allocating pages we should never need is silly but the + * code won't work correctly unless we have dummy pages to + * work with. + */ + result = kimage_set_destination(image, reboot_code_buffer); + if (result) + goto out; + result = kimage_add_empty_pages(image, KEXEC_REBOOT_CODE_SIZE); + if (result) + goto out; + image->reboot_code_buffer = phys_to_virt(reboot_code_buffer); + + result = kimage_terminate(image); + if (result) + goto out; + + result = kimage_get_off_destination_pages(image); + if (result) + goto out; + + /* Now hide the extra source pages for the reboot code buffer. + */ + image->entry = end; + result = kimage_terminate(image); + if (result) + goto out; + + result = 0; + out: + /* cleanup and exit */ + if (segments) kfree(segments); + return result; +} + + +/* + * Exec Kernel system call: for obvious reasons only root may call it. + * + * This call breaks up into three pieces. + * - A generic part which loads the new kernel from the current + * address space, and very carefully places the data in the + * allocated pages. + * + * - A generic part that interacts with the kernel and tells all of + * the devices to shut down. Preventing on-going dmas, and placing + * the devices in a consistent state so a later kernel can + * reinitialize them. + * + * - A machine specific part that includes the syscall number + * and the copies the image to it's final destination. And + * jumps into the image at entry. + * + * kexec does not sync, or unmount filesystems so if you need + * that to happen you need to do that yourself. + */ +struct kimage *kexec_image = 0; + +asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, + struct kexec_segment *segments, unsigned long flags) +{ + /* Am I using to much stack space here? */ + struct kimage *image, *old_image; + int result; + + /* We only trust the superuser with rebooting the system. */ + if (!capable(CAP_SYS_ADMIN)) + return -EPERM; + + /* In case we need just a little bit of special behavior for + * reboot on panic + */ + if (flags != 0) + return -EINVAL; + + image = 0; + if (nr_segments > 0) { + image = kimage_alloc(); + if (!image) { + return -ENOMEM; + } + result = do_kexec(entry, nr_segments, segments, image); + if (result) { + kimage_free(image); + return result; + } + } + + old_image = xchg(&kexec_image, image); + + kimage_free(old_image); + return 0; +} diff -uNr linux-2.5.48/kernel/sys.c linux-2.5.48.x86kexec/kernel/sys.c --- linux-2.5.48/kernel/sys.c Sun Nov 17 22:51:26 2002 +++ linux-2.5.48.x86kexec/kernel/sys.c Sun Nov 17 22:53:09 2002 @@ -16,6 +16,7 @@ #include <linux/init.h> #include <linux/highuid.h> #include <linux/fs.h> +#include <linux/kexec.h> #include <linux/workqueue.h> #include <linux/device.h> #include <linux/times.h> @@ -206,6 +207,7 @@ cond_syscall(sys_lookup_dcookie) cond_syscall(sys_swapon) cond_syscall(sys_swapoff) +cond_syscall(sys_kexec_load) cond_syscall(sys_init_module) cond_syscall(sys_delete_module) @@ -416,6 +418,27 @@ machine_restart(buffer); break; +#ifdef CONFIG_KEXEC + case LINUX_REBOOT_CMD_KEXEC: + { + struct kimage *image; + if (arg) { + unlock_kernel(); + return -EINVAL; + } + image = xchg(&kexec_image, 0); + if (!image) { + unlock_kernel(); + return -EINVAL; + } + notifier_call_chain(&reboot_notifier_list, SYS_RESTART, NULL); + system_running = 0; + device_shutdown(); + printk(KERN_EMERG "Starting new kernel\n"); + machine_kexec(image); + break; + } +#endif #ifdef CONFIG_SOFTWARE_SUSPEND case LINUX_REBOOT_CMD_SW_SUSPEND: if (!software_suspend_enabled) {

4 3

ELITEGROUP K7SEM. Linuxbios not boot [newbie]
by 진호 박 20 Nov '02

20 Nov '02

hi.. I install RH 8.0. I porting the linuxbios my k7sem board. I following method. linuxbios cvs downloading. cvs -d :pserver:anonymous@cvs.freebios.sourceforge.net:/cvsroot/freebios login cvs -z3 -d :pserver:anonymous@cvs.freebios.sourceforge.net:/cvsroot/freebios co freebios and then, download kernel linux-2.4.17 using ftp.(ftp.kernel.org) patch linux-2.4.17-sis.patch. kernel compile error mtd, video, sound when orginal config(cvs downloading) file using. my kernel config file is than. orignal config file is modified. ============================================ # # Automatically generated by make menuconfig: don't edit # CONFIG_X86=y CONFIG_ISA=y # CONFIG_SBUS is not set CONFIG_UID16=y # # Code maturity level options # CONFIG_EXPERIMENTAL=y # # Loadable module support # CONFIG_MODULES=y # CONFIG_MODVERSIONS is not set CONFIG_KMOD=y # # Processor type and features # # CONFIG_M386 is not set # CONFIG_M486 is not set # CONFIG_M586 is not set # CONFIG_M586TSC is not set # CONFIG_M586MMX is not set # CONFIG_M686 is not set # CONFIG_MPENTIUMIII is not set # CONFIG_MPENTIUM4 is not set # CONFIG_MK6 is not set CONFIG_MK7=y # CONFIG_MCRUSOE is not set # CONFIG_MWINCHIPC6 is not set # CONFIG_MWINCHIP2 is not set # CONFIG_MWINCHIP3D is not set # CONFIG_MCYRIXIII is not set CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INVLPG=y CONFIG_X86_CMPXCHG=y CONFIG_X86_XADD=y CONFIG_X86_BSWAP=y CONFIG_X86_POPAD_OK=y # CONFIG_RWSEM_GENERIC_SPINLOCK is not set CONFIG_RWSEM_XCHGADD_ALGORITHM=y CONFIG_X86_L1_CACHE_SHIFT=6 CONFIG_X86_TSC=y CONFIG_X86_GOOD_APIC=y CONFIG_X86_USE_3DNOW=y CONFIG_X86_PGE=y CONFIG_X86_USE_PPRO_CHECKSUM=y # CONFIG_TOSHIBA is not set # CONFIG_I8K is not set CONFIG_MICROCODE=y CONFIG_X86_MSR=y CONFIG_X86_CPUID=y CONFIG_NOHIGHMEM=y # CONFIG_HIGHMEM4G is not set # CONFIG_HIGHMEM64G is not set # CONFIG_MATH_EMULATION is not set CONFIG_MTRR=y # CONFIG_SMP is not set # CONFIG_X86_UP_APIC is not set # CONFIG_X86_UP_IOAPIC is not set # # General setup # CONFIG_NET=y CONFIG_PCI=y # CONFIG_PCI_GOBIOS is not set CONFIG_PCI_GODIRECT=y # CONFIG_PCI_GOANY is not set CONFIG_PCI_DIRECT=y CONFIG_PCI_NAMES=y # CONFIG_EISA is not set # CONFIG_MCA is not set # CONFIG_HOTPLUG is not set # CONFIG_PCMCIA is not set # CONFIG_HOTPLUG_PCI is not set CONFIG_SYSVIPC=y # CONFIG_BSD_PROCESS_ACCT is not set CONFIG_SYSCTL=y CONFIG_KCORE_ELF=y # CONFIG_KCORE_AOUT is not set # CONFIG_BINFMT_AOUT is not set CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_MISC is not set # CONFIG_PM is not set # CONFIG_ACPI is not set # CONFIG_APM is not set # # Memory Technology Devices (MTD) # CONFIG_MTD=y # CONFIG_MTD_DEBUG is not set CONFIG_MTD_PARTITIONS=y # CONFIG_MTD_REDBOOT_PARTS is not set CONFIG_MTD_CHAR=m # CONFIG_MTD_BLOCK is not set # CONFIG_MTD_BLOCK_RO is not set # CONFIG_FTL is not set CONFIG_NFTL=m # CONFIG_NFTL_RW is not set # # RAM/ROM/Flash chip drivers # # CONFIG_MTD_CFI is not set # CONFIG_MTD_JEDECPROBE is not set # CONFIG_MTD_GEN_PROBE is not set # CONFIG_MTD_CFI_INTELEXT is not set # CONFIG_MTD_CFI_AMDSTD is not set # CONFIG_MTD_RAM is not set # CONFIG_MTD_ROM is not set # CONFIG_MTD_ABSENT is not set # CONFIG_MTD_OBSOLETE_CHIPS is not set # CONFIG_MTD_AMDSTD is not set # CONFIG_MTD_SHARP is not set # CONFIG_MTD_JEDEC is not set # # Mapping drivers for chip access # # CONFIG_MTD_PHYSMAP is not set # CONFIG_MTD_PNC2000 is not set # CONFIG_MTD_SC520CDP is not set # CONFIG_MTD_NETSC520 is not set # CONFIG_MTD_SBC_GXX is not set # CONFIG_MTD_ELAN_104NC is not set # CONFIG_MTD_MIXMEM is not set # CONFIG_MTD_OCTAGON is not set # CONFIG_MTD_VMAX is not set # CONFIG_MTD_L440GX is not set # # Self-contained MTD device drivers # # CONFIG_MTD_PMC551 is not set # CONFIG_MTD_SLRAM is not set # CONFIG_MTD_MTDRAM is not set # CONFIG_MTD_BLKMTD is not set # CONFIG_MTD_DOC1000 is not set CONFIG_MTD_DOC2000=m CONFIG_MTD_DOC2001=m CONFIG_MTD_DOCPROBE=m CONFIG_MTD_DOCPROBE_ADVANCED=y CONFIG_MTD_DOCPROBE_ADDRESS=0000 CONFIG_MTD_DOCPROBE_HIGH=y # CONFIG_MTD_DOCPROBE_55AA is not set # # NAND Flash Device Drivers # # CONFIG_MTD_NAND is not set # # Parallel port support # # CONFIG_PARPORT is not set # # Plug and Play configuration # # CONFIG_PNP is not set # CONFIG_ISAPNP is not set # # Block devices # CONFIG_BLK_DEV_FD=y # CONFIG_BLK_DEV_XD is not set # CONFIG_PARIDE is not set # CONFIG_BLK_CPQ_DA is not set # CONFIG_BLK_CPQ_CISS_DA is not set # CONFIG_BLK_DEV_DAC960 is not set # CONFIG_BLK_DEV_LOOP is not set # CONFIG_BLK_DEV_NBD is not set # CONFIG_BLK_DEV_RAM is not set # CONFIG_BLK_DEV_INITRD is not set # # Multi-device support (RAID and LVM) # # CONFIG_MD is not set # CONFIG_BLK_DEV_MD is not set # CONFIG_MD_LINEAR is not set # CONFIG_MD_RAID0 is not set # CONFIG_MD_RAID1 is not set # CONFIG_MD_RAID5 is not set # CONFIG_MD_MULTIPATH is not set # CONFIG_BLK_DEV_LVM is not set # # Networking options # CONFIG_PACKET=y # CONFIG_PACKET_MMAP is not set # CONFIG_NETLINK_DEV is not set # CONFIG_NETFILTER is not set # CONFIG_FILTER is not set CONFIG_UNIX=y CONFIG_INET=y CONFIG_IP_MULTICAST=y # CONFIG_IP_ADVANCED_ROUTER is not set # CONFIG_IP_PNP is not set # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set # CONFIG_IP_MROUTE is not set # CONFIG_ARPD is not set # CONFIG_INET_ECN is not set # CONFIG_SYN_COOKIES is not set # CONFIG_IPV6 is not set # CONFIG_KHTTPD is not set # CONFIG_ATM is not set # CONFIG_VLAN_8021Q is not set # CONFIG_IPX is not set # CONFIG_ATALK is not set # CONFIG_DECNET is not set # CONFIG_BRIDGE is not set # CONFIG_X25 is not set # CONFIG_LAPB is not set # CONFIG_LLC is not set # CONFIG_NET_DIVERT is not set # CONFIG_ECONET is not set # CONFIG_WAN_ROUTER is not set # CONFIG_NET_FASTROUTE is not set # CONFIG_NET_HW_FLOWCONTROL is not set # # QoS and/or fair queueing # # CONFIG_NET_SCHED is not set # # Telephony Support # # CONFIG_PHONE is not set # CONFIG_PHONE_IXJ is not set # CONFIG_PHONE_IXJ_PCMCIA is not set # # ATA/IDE/MFM/RLL support # CONFIG_IDE=y # # IDE, ATA and ATAPI Block devices # CONFIG_BLK_DEV_IDE=y # CONFIG_BLK_DEV_HD_IDE is not set # CONFIG_BLK_DEV_HD is not set CONFIG_BLK_DEV_IDEDISK=y CONFIG_IDEDISK_MULTI_MODE=y # CONFIG_BLK_DEV_IDEDISK_VENDOR is not set # CONFIG_BLK_DEV_IDEDISK_FUJITSU is not set # CONFIG_BLK_DEV_IDEDISK_IBM is not set # CONFIG_BLK_DEV_IDEDISK_MAXTOR is not set # CONFIG_BLK_DEV_IDEDISK_QUANTUM is not set # CONFIG_BLK_DEV_IDEDISK_SEAGATE is not set # CONFIG_BLK_DEV_IDEDISK_WD is not set # CONFIG_BLK_DEV_COMMERIAL is not set # CONFIG_BLK_DEV_TIVO is not set # CONFIG_BLK_DEV_IDECS is not set CONFIG_BLK_DEV_IDECD=y # CONFIG_BLK_DEV_IDETAPE is not set # CONFIG_BLK_DEV_IDEFLOPPY is not set # CONFIG_BLK_DEV_IDESCSI is not set # CONFIG_BLK_DEV_CMD640 is not set # CONFIG_BLK_DEV_CMD640_ENHANCED is not set # CONFIG_BLK_DEV_ISAPNP is not set # CONFIG_BLK_DEV_RZ1000 is not set CONFIG_BLK_DEV_IDEPCI=y CONFIG_IDEPCI_SHARE_IRQ=y CONFIG_BLK_DEV_IDEDMA_PCI=y CONFIG_BLK_DEV_ADMA=y # CONFIG_BLK_DEV_OFFBOARD is not set CONFIG_IDEDMA_PCI_AUTO=y CONFIG_BLK_DEV_IDEDMA=y # CONFIG_IDEDMA_PCI_WIP is not set # CONFIG_IDEDMA_NEW_DRIVE_LISTINGS is not set # CONFIG_BLK_DEV_AEC62XX is not set # CONFIG_AEC62XX_TUNING is not set # CONFIG_BLK_DEV_ALI15X3 is not set # CONFIG_WDC_ALI15X3 is not set # CONFIG_BLK_DEV_AMD74XX is not set # CONFIG_AMD74XX_OVERRIDE is not set # CONFIG_BLK_DEV_CMD64X is not set # CONFIG_BLK_DEV_CY82C693 is not set # CONFIG_BLK_DEV_CS5530 is not set # CONFIG_BLK_DEV_HPT34X is not set # CONFIG_HPT34X_AUTODMA is not set # CONFIG_BLK_DEV_HPT366 is not set # CONFIG_BLK_DEV_PIIX is not set # CONFIG_PIIX_TUNING is not set # CONFIG_BLK_DEV_NS87415 is not set # CONFIG_BLK_DEV_OPTI621 is not set # CONFIG_BLK_DEV_PDC202XX is not set # CONFIG_PDC202XX_BURST is not set # CONFIG_PDC202XX_FORCE is not set # CONFIG_BLK_DEV_SVWKS is not set CONFIG_BLK_DEV_SIS5513=y # CONFIG_BLK_DEV_SLC90E66 is not set # CONFIG_BLK_DEV_TRM290 is not set # CONFIG_BLK_DEV_VIA82CXXX is not set # CONFIG_IDE_CHIPSETS is not set CONFIG_IDEDMA_AUTO=y # CONFIG_IDEDMA_IVB is not set # CONFIG_DMA_NONPCI is not set CONFIG_BLK_DEV_IDE_MODES=y # CONFIG_BLK_DEV_ATARAID is not set # CONFIG_BLK_DEV_ATARAID_PDC is not set # CONFIG_BLK_DEV_ATARAID_HPT is not set # # SCSI support # # CONFIG_SCSI is not set # # Fusion MPT device support # # CONFIG_FUSION is not set # CONFIG_FUSION_BOOT is not set # CONFIG_FUSION_ISENSE is not set # CONFIG_FUSION_CTL is not set # CONFIG_FUSION_LAN is not set # # IEEE 1394 (FireWire) support (EXPERIMENTAL) # # CONFIG_IEEE1394 is not set # # I2O device support # # CONFIG_I2O is not set # CONFIG_I2O_PCI is not set # CONFIG_I2O_BLOCK is not set # CONFIG_I2O_LAN is not set # CONFIG_I2O_SCSI is not set # CONFIG_I2O_PROC is not set # # Network device support # CONFIG_NETDEVICES=y # # ARCnet devices # # CONFIG_ARCNET is not set # CONFIG_DUMMY is not set # CONFIG_BONDING is not set # CONFIG_EQUALIZER is not set # CONFIG_TUN is not set # CONFIG_ETHERTAP is not set # # Ethernet (10 or 100Mbit) # CONFIG_NET_ETHERNET=y # CONFIG_SUNLANCE is not set # CONFIG_HAPPYMEAL is not set # CONFIG_SUNBMAC is not set # CONFIG_SUNQE is not set # CONFIG_SUNLANCE is not set # CONFIG_SUNGEM is not set # CONFIG_NET_VENDOR_3COM is not set # CONFIG_LANCE is not set # CONFIG_NET_VENDOR_SMC is not set # CONFIG_NET_VENDOR_RACAL is not set # CONFIG_AT1700 is not set # CONFIG_DEPCA is not set # CONFIG_HP100 is not set # CONFIG_NET_ISA is not set CONFIG_NET_PCI=y # CONFIG_PCNET32 is not set # CONFIG_ADAPTEC_STARFIRE is not set # CONFIG_AC3200 is not set # CONFIG_APRICOT is not set # CONFIG_CS89x0 is not set # CONFIG_TULIP is not set # CONFIG_DE4X5 is not set # CONFIG_DGRS is not set # CONFIG_DM9102 is not set # CONFIG_EEPRO100 is not set # CONFIG_LNE390 is not set # CONFIG_FEALNX is not set # CONFIG_NATSEMI is not set # CONFIG_NE2K_PCI is not set # CONFIG_NE3210 is not set # CONFIG_ES3210 is not set # CONFIG_8139CP is not set # CONFIG_8139TOO is not set # CONFIG_8139TOO_PIO is not set # CONFIG_8139TOO_TUNE_TWISTER is not set # CONFIG_8139TOO_8129 is not set CONFIG_SIS900=y # CONFIG_EPIC100 is not set # CONFIG_SUNDANCE is not set # CONFIG_TLAN is not set # CONFIG_VIA_RHINE is not set # CONFIG_VIA_RHINE_MMIO is not set # CONFIG_WINBOND_840 is not set # CONFIG_NET_POCKET is not set # # Ethernet (1000 Mbit) # # CONFIG_ACENIC is not set # CONFIG_DL2K is not set # CONFIG_MYRI_SBUS is not set # CONFIG_NS83820 is not set # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set # CONFIG_SK98LIN is not set # CONFIG_FDDI is not set # CONFIG_HIPPI is not set # CONFIG_PLIP is not set # CONFIG_PPP is not set # CONFIG_SLIP is not set # # Wireless LAN (non-hamradio) # # CONFIG_NET_RADIO is not set # # Token Ring devices # # CONFIG_TR is not set # CONFIG_NET_FC is not set # CONFIG_RCPCI is not set # CONFIG_SHAPER is not set # # Wan interfaces # # CONFIG_WAN is not set # # Amateur Radio support # # CONFIG_HAMRADIO is not set # # IrDA (infrared) support # # CONFIG_IRDA is not set # # ISDN subsystem # # CONFIG_ISDN is not set # # Old CD-ROM drivers (not SCSI, not IDE) # # CONFIG_CD_NO_IDESCSI is not set # # Input core support # # CONFIG_INPUT is not set # CONFIG_INPUT_KEYBDEV is not set # CONFIG_INPUT_MOUSEDEV is not set # CONFIG_INPUT_JOYDEV is not set # CONFIG_INPUT_EVDEV is not set # # Character devices # CONFIG_VT=y CONFIG_VT_CONSOLE=y CONFIG_SERIAL=y CONFIG_SERIAL_CONSOLE=y # CONFIG_SERIAL_EXTENDED is not set # CONFIG_SERIAL_NONSTANDARD is not set CONFIG_UNIX98_PTYS=y CONFIG_UNIX98_PTY_COUNT=256 # # I2C support # # CONFIG_I2C is not set # # Mice # # CONFIG_BUSMOUSE is not set CONFIG_MOUSE=y CONFIG_PSMOUSE=y # CONFIG_82C710_MOUSE is not set # CONFIG_PC110_PAD is not set # # Joysticks # # CONFIG_INPUT_GAMEPORT is not set # CONFIG_QIC02_TAPE is not set # # Watchdog Cards # # CONFIG_WATCHDOG is not set # CONFIG_INTEL_RNG is not set # CONFIG_NVRAM is not set # CONFIG_RTC is not set # CONFIG_DTLK is not set # CONFIG_R3964 is not set # CONFIG_APPLICOM is not set # CONFIG_SONYPI is not set # # Ftape, the floppy tape device driver # # CONFIG_FTAPE is not set # CONFIG_AGP is not set # CONFIG_DRM is not set # CONFIG_MWAVE is not set # # Multimedia devices # # CONFIG_VIDEO_DEV is not set # # File systems # # CONFIG_QUOTA is not set # CONFIG_AUTOFS_FS is not set # CONFIG_AUTOFS4_FS is not set # CONFIG_REISERFS_FS is not set # CONFIG_REISERFS_CHECK is not set # CONFIG_REISERFS_PROC_INFO is not set # CONFIG_ADFS_FS is not set # CONFIG_ADFS_FS_RW is not set # CONFIG_AFFS_FS is not set # CONFIG_HFS_FS is not set # CONFIG_BFS_FS is not set # CONFIG_EXT3_FS is not set # CONFIG_JBD is not set # CONFIG_JBD_DEBUG is not set CONFIG_FAT_FS=y CONFIG_MSDOS_FS=y # CONFIG_UMSDOS_FS is not set CONFIG_VFAT_FS=y # CONFIG_EFS_FS is not set # CONFIG_JFFS_FS is not set # CONFIG_JFFS2_FS is not set # CONFIG_CRAMFS is not set # CONFIG_TMPFS is not set # CONFIG_RAMFS is not set CONFIG_ISO9660_FS=y CONFIG_JOLIET=y # CONFIG_ZISOFS is not set # CONFIG_MINIX_FS is not set # CONFIG_VXFS_FS is not set # CONFIG_NTFS_FS is not set # CONFIG_NTFS_RW is not set # CONFIG_HPFS_FS is not set CONFIG_PROC_FS=y # CONFIG_DEVFS_FS is not set # CONFIG_DEVFS_MOUNT is not set # CONFIG_DEVFS_DEBUG is not set CONFIG_DEVPTS_FS=y # CONFIG_QNX4FS_FS is not set # CONFIG_QNX4FS_RW is not set # CONFIG_ROMFS_FS is not set CONFIG_EXT2_FS=y # CONFIG_SYSV_FS is not set # CONFIG_UDF_FS is not set # CONFIG_UDF_RW is not set # CONFIG_UFS_FS is not set # CONFIG_UFS_FS_WRITE is not set # # Network File Systems # # CONFIG_CODA_FS is not set # CONFIG_INTERMEZZO_FS is not set # CONFIG_NFS_FS is not set # CONFIG_NFS_V3 is not set # CONFIG_ROOT_NFS is not set # CONFIG_NFSD is not set # CONFIG_NFSD_V3 is not set # CONFIG_SUNRPC is not set # CONFIG_LOCKD is not set # CONFIG_SMB_FS is not set # CONFIG_NCP_FS is not set # CONFIG_NCPFS_PACKET_SIGNING is not set # CONFIG_NCPFS_IOCTL_LOCKING is not set # CONFIG_NCPFS_STRONG is not set # CONFIG_NCPFS_NFS_NS is not set # CONFIG_NCPFS_OS2_NS is not set # CONFIG_NCPFS_SMALLDOS is not set # CONFIG_NCPFS_NLS is not set # CONFIG_NCPFS_EXTRAS is not set # CONFIG_ZISOFS_FS is not set # CONFIG_ZLIB_FS_INFLATE is not set # # Partition Types # # CONFIG_PARTITION_ADVANCED is not set CONFIG_MSDOS_PARTITION=y # CONFIG_SMB_NLS is not set CONFIG_NLS=y # # Native Language Support # CONFIG_NLS_DEFAULT="iso8859-1" # CONFIG_NLS_CODEPAGE_437 is not set # CONFIG_NLS_CODEPAGE_737 is not set # CONFIG_NLS_CODEPAGE_775 is not set # CONFIG_NLS_CODEPAGE_850 is not set # CONFIG_NLS_CODEPAGE_852 is not set # CONFIG_NLS_CODEPAGE_855 is not set # CONFIG_NLS_CODEPAGE_857 is not set # CONFIG_NLS_CODEPAGE_860 is not set # CONFIG_NLS_CODEPAGE_861 is not set # CONFIG_NLS_CODEPAGE_862 is not set # CONFIG_NLS_CODEPAGE_863 is not set # CONFIG_NLS_CODEPAGE_864 is not set # CONFIG_NLS_CODEPAGE_865 is not set # CONFIG_NLS_CODEPAGE_866 is not set # CONFIG_NLS_CODEPAGE_869 is not set # CONFIG_NLS_CODEPAGE_936 is not set # CONFIG_NLS_CODEPAGE_950 is not set # CONFIG_NLS_CODEPAGE_932 is not set # CONFIG_NLS_CODEPAGE_949 is not set # CONFIG_NLS_CODEPAGE_874 is not set # CONFIG_NLS_ISO8859_8 is not set # CONFIG_NLS_CODEPAGE_1251 is not set # CONFIG_NLS_ISO8859_1 is not set # CONFIG_NLS_ISO8859_2 is not set # CONFIG_NLS_ISO8859_3 is not set # CONFIG_NLS_ISO8859_4 is not set # CONFIG_NLS_ISO8859_5 is not set # CONFIG_NLS_ISO8859_6 is not set # CONFIG_NLS_ISO8859_7 is not set # CONFIG_NLS_ISO8859_9 is not set # CONFIG_NLS_ISO8859_13 is not set # CONFIG_NLS_ISO8859_14 is not set # CONFIG_NLS_ISO8859_15 is not set # CONFIG_NLS_KOI8_R is not set # CONFIG_NLS_KOI8_U is not set # CONFIG_NLS_UTF8 is not set # # Console drivers # CONFIG_VGA_CONSOLE=y CONFIG_VIDEO_SELECT=y # CONFIG_MDA_CONSOLE is not set # # Frame-buffer support # CONFIG_FB=y CONFIG_DUMMY_CONSOLE=y # CONFIG_FB_RIVA is not set # CONFIG_FB_CLGEN is not set # CONFIG_FB_PM2 is not set # CONFIG_FB_CYBER2000 is not set CONFIG_FB_VESA=y # CONFIG_FB_VGA16 is not set # CONFIG_FB_HGA is not set CONFIG_VIDEO_SELECT=y # CONFIG_FB_MATROX is not set # CONFIG_FB_ATY is not set # CONFIG_FB_RADEON is not set # CONFIG_FB_ATY128 is not set # CONFIG_FB_SIS is not set # CONFIG_FB_3DFX is not set # CONFIG_FB_VOODOO1 is not set # CONFIG_FB_VIRTUAL is not set # CONFIG_FBCON_ADVANCED is not set CONFIG_FBCON_CFB8=y CONFIG_FBCON_CFB16=y CONFIG_FBCON_CFB24=y CONFIG_FBCON_CFB32=y # CONFIG_FBCON_FONTWIDTH8_ONLY is not set # CONFIG_FBCON_FONTS is not set CONFIG_FONT_8x8=y CONFIG_FONT_8x16=y # # Sound # # CONFIG_SOUND is not set # # USB support # CONFIG_USB=y # CONFIG_USB_DEBUG is not set # CONFIG_USB_DEVICEFS is not set # CONFIG_USB_BANDWIDTH is not set # CONFIG_USB_LONG_TIMEOUT is not set CONFIG_USB_UHCI_ALT=y # CONFIG_USB_OHCI is not set # CONFIG_USB_AUDIO is not set # CONFIG_USB_BLUETOOTH is not set # CONFIG_USB_STORAGE is not set # CONFIG_USB_STORAGE_DEBUG is not set # CONFIG_USB_STORAGE_DATAFAB is not set # CONFIG_USB_STORAGE_FREECOM is not set # CONFIG_USB_STORAGE_ISD200 is not set # CONFIG_USB_STORAGE_DPCM is not set # CONFIG_USB_STORAGE_HP8200e is not set # CONFIG_USB_STORAGE_SDDR09 is not set # CONFIG_USB_STORAGE_JUMPSHOT is not set # CONFIG_USB_ACM is not set # CONFIG_USB_PRINTER is not set # CONFIG_USB_DC2XX is not set # CONFIG_USB_MDC800 is not set # CONFIG_USB_SCANNER is not set # CONFIG_USB_MICROTEK is not set # CONFIG_USB_HPUSBSCSI is not set # CONFIG_USB_PEGASUS is not set # CONFIG_USB_KAWETH is not set # CONFIG_USB_CATC is not set # CONFIG_USB_CDCETHER is not set # CONFIG_USB_USBNET is not set # CONFIG_USB_USS720 is not set # # USB Serial Converter support # # CONFIG_USB_SERIAL is not set # CONFIG_USB_SERIAL_GENERIC is not set # CONFIG_USB_SERIAL_BELKIN is not set # CONFIG_USB_SERIAL_WHITEHEAT is not set # CONFIG_USB_SERIAL_DIGI_ACCELEPORT is not set # CONFIG_USB_SERIAL_EMPEG is not set # CONFIG_USB_SERIAL_FTDI_SIO is not set # CONFIG_USB_SERIAL_VISOR is not set # CONFIG_USB_SERIAL_IR is not set # CONFIG_USB_SERIAL_EDGEPORT is not set # CONFIG_USB_SERIAL_KEYSPAN_PDA is not set # CONFIG_USB_SERIAL_KEYSPAN is not set # CONFIG_USB_SERIAL_KEYSPAN_USA28 is not set # CONFIG_USB_SERIAL_KEYSPAN_USA28X is not set # CONFIG_USB_SERIAL_KEYSPAN_USA28XA is not set # CONFIG_USB_SERIAL_KEYSPAN_USA28XB is not set # CONFIG_USB_SERIAL_KEYSPAN_USA19 is not set # CONFIG_USB_SERIAL_KEYSPAN_USA18X is not set # CONFIG_USB_SERIAL_KEYSPAN_USA19W is not set # CONFIG_USB_SERIAL_KEYSPAN_USA49W is not set # CONFIG_USB_SERIAL_MCT_U232 is not set # CONFIG_USB_SERIAL_PL2303 is not set # CONFIG_USB_SERIAL_CYBERJACK is not set # CONFIG_USB_SERIAL_XIRCOM is not set # CONFIG_USB_SERIAL_OMNINET is not set # CONFIG_USB_RIO500 is not set # # Bluetooth support # # CONFIG_BLUEZ is not set # # Kernel hacking # # CONFIG_DEBUG_KERNEL is not set # # LinuxBIOS # CONFIG_LINUXBIOS=y # # Linuxbios Options # # CONFIG_LINUXBIOS_PM is not set ============================================ kernel compile folling method. make dep make vmlinux make modules make modules_install make bzImage making the vmlinux image. I modified the ~/freebios/src/mainboard/elitegroup/k7sem/config.example file then k7sem4.config file. ======================================================= # Note that this is RELATIVE TO WHERE YOU ARE WHEN YOU RUN THE # CONFIG TOOL. Make it absolute if you like target k7sem4 # Elitegroup K7sem mainboard elitegroup/k7sem ## Request this level of debugging output option DEFAULT_CONSOLE_LOGLEVEL=8 ## At a maximum only compile in this level of debugging option MAXIMUM_CONSOLE_LOGLEVEL=8 #option DEBUG # Enable Serial Console for debugging # It will come up at 115200,8n1 option SERIAL_CONSOLE=1 #option SERIAL_POST=1 # Use the internal VGA frame buffer device option HAVE_FRAMEBUFFER=1 #floppy is nice #option MUST_ENABLE_FLOPPY=1 # We're using disk on chip. Tell it where to find the docipl code option USE_DOC_MIL=1 docipl northsouthbridge/sis/730/ipl.S # Path to your kernel (vmlinux) # NOTE; you need a path to your test12 kernel here. #linux ~/src/linux-2.4.12-sis linux /root/root/linuxbios/kernel/linux-2.4.17/ # Kernel command line parameters commandline root=/dev/hda1 single console=ttyS0,115200 console=tty0 ======================================================= #option SERIAL_POST=1 SERIAL_POST option is comment. not comment make error. -_-;; python ./NLBConfig.py k7sem4.config ../../../freebios cd k7sem4 make (linuxbios compile) then, the make three files. ====================================================== docipl linuxbios.strip linux.bin.gz ====================================================== also, mtdutils dowloaing the cvs cvs -d :pserver:anoncvs@cvs.infradead.org:/home/cvs login (password: anoncvs) cvs -d :pserver:anoncvs@cvs.infradead.org:/home/cvs co mtd cd ./mtd/utils/ sh -x MAKEDEV make this creates the 'erase' utilty. edit .bashrc file. $PATH is modify. flash_on utililty make. ~/freebios/util/sis/flash_on.c using. edit .bashrc file. $PATH is modify. then, I pull bioschip (PMC Flash). I push Disk On Chip.(M-system. doc2001.) ~/freebios/util/mtd/burn_mtd (shell script file) copy the ~/freebios/util/config/k7sem4/. cd ~/freebios/util/config/k7sem4/ ./burn_mtd following message. ====================================================== DiskOnChip Millennium found at address 0xFFFC8000 Could not find valid boot recod Could not mount NFTL device Ignoring DiskOnChip Millennium at 0xFFFCA000 - already configured Ignoring DiskOnChip Millennium at 0xFFFCC000 - already configured Ignoring DiskOnChip Millennium at 0xFFFCE000 - already configured Ignoring DiskOnChip Millennium at 0xFFFD0000 - already configured Ignoring DiskOnChip Millennium at 0xFFFD2000 - already configured Ignoring DiskOnChip Millennium at 0xFFFD4000 - already configured Ignoring DiskOnChip Millennium at 0xFFFD6000 - already configured Ignoring DiskOnChip Millennium at 0xFFFD8000 - already configured Ignoring DiskOnChip Millennium at 0xFFFDA000 - already configured Ignoring DiskOnChip Millennium at 0xFFFDC000 - already configured Ignoring DiskOnChip Millennium at 0xFFFDE000 - already configured Ignoring DiskOnChip Millennium at 0xFFFE0000 - already configured Ignoring DiskOnChip Millennium at 0xFFFE2000 - already configured Ignoring DiskOnChip Millennium at 0xFFFE4000 - already configured Ignoring DiskOnChip Millennium at 0xFFFE6000 - already configured Ignoring DiskOnChip Millennium at 0xFFFE8000 - already configured Ignoring DiskOnChip Millennium at 0xFFFEA000 - already configured Ignoring DiskOnChip Millennium at 0xFFFEC000 - already configured Ignoring DiskOnChip Millennium at 0xFFFEE000 - already configured 11+1 records in 12+0 records out 0+1 records in 1+0 records out Erase Total 1024 Units Performing Flash Erase of length 8192 at offset 0x7fe000 done 1+0 records in 1+0 records out 1+0 records in 1+0 records out 126+0 records in 126+0 records out 1536+0 records in 1536+0 records out ====================================================== _____________________________________________________________________ 디지탈 카메라와 찰떡 궁합- 야후! 사진 http://kr.photos.yahoo.com/ 친구들과 함께 바꿔보세요. - 야후! 메신저 http://kr.messenger.yahoo.com/

1 0

ali chipset
by albert 20 Nov '02

20 Nov '02

Hi everybody: i got an old asus p2b mainboard, and i wnat to make it linuxbios run-able. BUT, i can not get any response for ali about requesting chipset datasheet. the chipset on p2b is ali m1541 northbridge and m1543 southbridge the memory type is sdram. i want to make it boot from the flashrom, not yet linux, then if it boot, use harddisk instead of dom, due to i do not have DOM now!! could anybody help me, i will very very appreciate your help or there are some other methods i can do, please be kind to tell me. thanks advance

1 0

Can't get a rom image below 512k?
by Andrew Kohlsmith 20 Nov '02

20 Nov '02

I *think* I did this right. I'm getting a 64k linuxbios.rom and a 512k romimage file. I'm using 2.4.19 with the SIS patch (as per the SBC710 port doc). If I run the bios inside of bochs, I get a segfault (yes, bochs crashes!) after saying "prefetch: running in bogus memory". It does this for either the 64k rom image or the 512k one. Now my biggest concern is that the target board has a 256k flash device. I don't think I can fit 512k into 256k. :-) I'm using the digitallogic smartcore-p5 as a guide, as my target board is also a 430tx-based board. I've written an SMC FDC37n958fr super io intializer (based on the 37c67x) but otherwise they're pretty similar. My intention is to use the LinuxBIOS to either boot a real kernel using etherboot (I have to compile in PCMCIA then though) or to boot from a IDE-attached CompactFlash card. At this stage in the game my kernel is pared down just about as much as I can think to do it. no VT (serial console only), IDE, direct PCI and that's about it. Am I missing something? Regards, Andrew

5 21

Reversing the default value of CONFIG_COMPRESS from 1 to 0
by Ronald G. Minnich 19 Nov '02

19 Nov '02

Eric, how much heartburn is there if we set the default value of CONFIG_COMPRESS to 0? I've just hit another platform where it is trouble. At this point I believe there are only a small number of platforms for which it works well if set to 1. Do you have any issues if we have it default to 0, not 1, so it is only enabled on platforms it is "known good" on? thanks ron

5 9

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coreboot November 2002