OpenBIOS May 2009

openbios@openbios.org

13 participants
28 discussions

"Error 7: Loading below 1MB is not supported"
by FORTH 20 May '09

20 May '09

Dear Sirs, with my openbios tests I find a propblem (look at subject). I think the cause of this is in "arch/x86/ldscript", but I'm not shure. My doing on Debian/Lenny was: - Error: "undefined reference to `__stack_chk_fail' " ==> obj-x86/Makefile "CFLAGS+= -fno-stack-protector" - Stopped on GRUB-Bootloader: "Error 7: Loading below 1MB is not supported" mbchk obj-x86/openbios.multiboot openbios.multiboot: The Multiboot header is found at the offset 184 openbios.multiboot: Page alignment openbios.multiboot: Memory information is turned on openbios.multiboot: Address fields is turned on ==> openbios.multiboot: header_addr is less than load_addr (0x0 > 0x8) Can you help particularly with regard to the second point ? Best regards gerd /"\ \ / ASCII Ribbon Campaign X Against HTML Mail / \

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.. Boot XP in 1sec Boot from RAM, by making Virtual HDD on RAM
by Alex Street 19 May '09

19 May '09

Can we boot Pure XP on RAM, (RAM limitation is 4GB RAM) using XPlite & NLite XP could be reduce to less about 1GB. it can be done by making VIRTUAL HDD on RAM, using *.img files from USB flashdisk, IDE CompactFlash, SD MMC to IDE (All are Slow Storage, has limited Read/Write ability) With this, GAME would be Bloddy FAST. turning on PC like turning on a TV. Sound GREATS. Ps. Grub4Dos, could do something like this, but it destroy whole geometry structure AFTER Win XP Started.

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[PATCH 1/5] Remove struct ata_sector and all references to it
by Pavel Roskin 17 May '09

17 May '09

struct ata_sector was meant to facilitate taking upper and lower byte of the sector. However, the implementation is incorrect, as "struct" and "union" are swapped in the definition. What's worse, it's an overkill for that simple task. The code should be transparent without knowing how struct ata_sector is defined. --- drivers/ide.c | 10 +++------- drivers/ide.h | 14 -------------- 2 files changed, 3 insertions(+), 21 deletions(-) diff --git a/drivers/ide.c b/drivers/ide.c index 1166f57..4d1e58c 100644 --- a/drivers/ide.c +++ b/drivers/ide.c @@ -764,7 +764,6 @@ ob_ide_read_ata_chs(struct ide_drive *drive, unsigned long long block, unsigned int sect = (block % drive->sect) + 1; unsigned int head = (track % drive->head); unsigned int cyl = (track / drive->head); - struct ata_sector ata_sector; /* * fill in chs command to read from disk at given location @@ -772,8 +771,7 @@ ob_ide_read_ata_chs(struct ide_drive *drive, unsigned long long block, cmd->buffer = buf; cmd->buflen = sectors * 512; - ata_sector.all = sectors; - cmd->nsector = ata_sector.low; + cmd->nsector = sectors & 0xff; cmd->sector = sect; cmd->lcyl = cyl; cmd->hcyl = cyl >> 8; @@ -815,19 +813,17 @@ ob_ide_read_ata_lba48(struct ide_drive *drive, unsigned long long block, unsigned char *buf, unsigned int sectors) { struct ata_command *cmd = &drive->channel->ata_cmd; - struct ata_sector ata_sector; memset(cmd, 0, sizeof(*cmd)); cmd->buffer = buf; cmd->buflen = sectors * 512; - ata_sector.all = sectors; /* * we are using tasklet addressing here */ - cmd->task[2] = ata_sector.low; - cmd->task[3] = ata_sector.high; + cmd->task[2] = sectors & 0xff; + cmd->task[3] = (sectors >> 8) & 0xff; cmd->task[4] = block; cmd->task[5] = block >> 8; cmd->task[6] = block >> 16; diff --git a/drivers/ide.h b/drivers/ide.h index fec0e0e..da79a71 100644 --- a/drivers/ide.h +++ b/drivers/ide.h @@ -208,20 +208,6 @@ enum { atapi_ddir_write, }; -struct ata_sector { - u16 all; - union { -#ifdef CONFIG_BIG_ENDIAN - u8 high; - u8 low; -#endif -#ifdef CONFIG_LITTLE_ENDIAN - u8 low; - u8 high; -#endif - }; -}; - static int ob_ide_atapi_request_sense(struct ide_drive *drive); #endif

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r489 - trunk/openbios-devel/drivers
by svn＠openbios.org 17 May '09

17 May '09

Author: laurent Date: 2009-05-17 20:59:32 +0200 (Sun, 17 May 2009) New Revision: 489 Modified: trunk/openbios-devel/drivers/ide.c trunk/openbios-devel/drivers/ide.h Log: Author: Pavel Roskin <proski(a)gnu.org> struct ata_sector was meant to facilitate taking upper and lower byte of the sector. However, the implementation is incorrect, as "struct" and "union" are swapped in the definition. What's worse, it's an overkill for that simple task. The code should be transparent without knowing how struct ata_sector is defined. [laurent: Original patch modified to remove useless "& 0xff"] Modified: trunk/openbios-devel/drivers/ide.c =================================================================== --- trunk/openbios-devel/drivers/ide.c 2009-05-17 17:14:01 UTC (rev 488) +++ trunk/openbios-devel/drivers/ide.c 2009-05-17 18:59:32 UTC (rev 489) @@ -764,7 +764,6 @@ unsigned int sect = (block % drive->sect) + 1; unsigned int head = (track % drive->head); unsigned int cyl = (track / drive->head); - struct ata_sector ata_sector; /* * fill in chs command to read from disk at given location @@ -772,8 +771,7 @@ cmd->buffer = buf; cmd->buflen = sectors * 512; - ata_sector.all = sectors; - cmd->nsector = ata_sector.low; + cmd->nsector = sectors & 0xff; cmd->sector = sect; cmd->lcyl = cyl; cmd->hcyl = cyl >> 8; @@ -815,19 +813,17 @@ unsigned char *buf, unsigned int sectors) { struct ata_command *cmd = &drive->channel->ata_cmd; - struct ata_sector ata_sector; memset(cmd, 0, sizeof(*cmd)); cmd->buffer = buf; cmd->buflen = sectors * 512; - ata_sector.all = sectors; /* * we are using tasklet addressing here */ - cmd->task[2] = ata_sector.low; - cmd->task[3] = ata_sector.high; + cmd->task[2] = sectors; + cmd->task[3] = sectors >> 8; cmd->task[4] = block; cmd->task[5] = block >> 8; cmd->task[6] = block >> 16; Modified: trunk/openbios-devel/drivers/ide.h =================================================================== --- trunk/openbios-devel/drivers/ide.h 2009-05-17 17:14:01 UTC (rev 488) +++ trunk/openbios-devel/drivers/ide.h 2009-05-17 18:59:32 UTC (rev 489) @@ -208,20 +208,6 @@ atapi_ddir_write, }; -struct ata_sector { - u16 all; - union { -#ifdef CONFIG_BIG_ENDIAN - u8 high; - u8 low; -#endif -#ifdef CONFIG_LITTLE_ENDIAN - u8 low; - u8 high; -#endif - }; -}; - static int ob_ide_atapi_request_sense(struct ide_drive *drive); #endif

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r488 - trunk/openbios-devel/arch/ppc/qemu
by svn＠openbios.org 17 May '09

17 May '09

Author: laurent Date: 2009-05-17 19:14:01 +0200 (Sun, 17 May 2009) New Revision: 488 Modified: trunk/openbios-devel/arch/ppc/qemu/ldscript Log: Author: Pavel Roskin <proski(a)gnu.org> This is needed on Fedora 11 (GNU ld 2.19.51.0.2). Otherwise, qemu reports on statup: invalid/unsupported opcode: 00 - 18 - 01 (00004070) 00000004 1 invalid/unsupported opcode: 00 - 04 - 17 (000095c8) 000095ec 0 I checked Linux sources (arch/powerpc/kernel/vmlinux.lds.S) and I see that .sbss is put to the .bss section in front of .bss itself. The problem is discussed at https://bugzilla.redhat.com/show_bug.cgi?id=494075 Modified: trunk/openbios-devel/arch/ppc/qemu/ldscript =================================================================== --- trunk/openbios-devel/arch/ppc/qemu/ldscript 2009-05-12 18:38:03 UTC (rev 487) +++ trunk/openbios-devel/arch/ppc/qemu/ldscript 2009-05-17 17:14:01 UTC (rev 488) @@ -46,6 +46,8 @@ .bss ALIGN(4096): { _bss = .; + *(.sbss) + *(.sbss.*) *(.bss) *(.bss.*) *(COMMON)

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r487 - trunk/openbios-devel/drivers
by svn＠openbios.org 12 May '09

12 May '09

Author: blueswirl Date: 2009-05-12 20:38:03 +0200 (Tue, 12 May 2009) New Revision: 487 Modified: trunk/openbios-devel/drivers/pci.c Log: Fix typo (Igor Kovalenko) Modified: trunk/openbios-devel/drivers/pci.c =================================================================== --- trunk/openbios-devel/drivers/pci.c 2009-05-05 17:57:18 UTC (rev 486) +++ trunk/openbios-devel/drivers/pci.c 2009-05-12 18:38:03 UTC (rev 487) @@ -110,7 +110,7 @@ n = hi & IS_NOT_RELOCATABLE; p = hi & IS_PREFETCHABLE; t = hi & IS_ALIASED; - ss = (hi >> 24) && 0x03; + ss = (hi >> 24) & 0x03; bus = (hi >> 16) & 0xFF; dev = (hi >> 11) & 0x1F;

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OpenBios compatibility...
by Jav 09 May '09

09 May '09

Hi everyone, I'm really interested on your project, I was trying to figure out if I can flash my laptop with your openbios but I couldn't find any compatibility list of something like that. I have an Acer Aspire 5100 with AMD Turion X2 64 and an Ati Radeon Xpress 1100 chipset. I would apreciate your help. Greetings from Mexico... -- Mi Blog: <a href="http://manoinvisibleinexistente.blogspot.com">La mano invisible e inexistente de Adam Smith</a>

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r486 - trunk/openbios-devel/drivers
by svn＠openbios.org 05 May '09

05 May '09

Author: blueswirl Date: 2009-05-05 19:57:18 +0200 (Tue, 05 May 2009) New Revision: 486 Modified: trunk/openbios-devel/drivers/floppy.c Log: Fix device_type property Modified: trunk/openbios-devel/drivers/floppy.c =================================================================== --- trunk/openbios-devel/drivers/floppy.c 2009-04-28 16:40:49 UTC (rev 485) +++ trunk/openbios-devel/drivers/floppy.c 2009-05-05 17:57:18 UTC (rev 486) @@ -1076,8 +1076,7 @@ int props[3]; phandle_t ph = find_dev(path); - push_str("block"); - fword("device-type"); + set_property(ph, "device_type", "block", sizeof("block")); // Set dummy reg properties props[0] = __cpu_to_be32(0); props[1] = __cpu_to_be32(0); props[2] = __cpu_to_be32(0);

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