Messages in this thread | | | Date | Thu, 04 Nov 2004 15:49:02 +0100 | From | Carl-Daniel Hailfinger <> | Subject | Re: boot option for CONFIG_EDD_SKIP_MBR? |
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Dave Jones schrieb: > On Thu, Nov 04, 2004 at 07:45:34AM -0600, Matt Domsch wrote: > > On Thu, Nov 04, 2004 at 02:35:58PM +0100, Carl-Daniel Hailfinger wrote: > > > [please CC: me on replies] > > > having had problems (inifinte hang on boot) with some Fujitsu > > > Siemens Scenic computers when EDD was enabled, I asked myself > > > if it would be possible to add a boot option edd=nombr and > > > possibly also another boot option edd=off to the EDD code in > > > the kernel. These would correspond to CONFIG_EDD_SKIP_MBR > > > and CONFIG_EDD, respectively. > > > > > > Yes, option parsing before entering protected mode is ugly, > > > but the vga setup code does it, too. > > > > > > What do you think? > > > > I'd love it. I hadn't done it as I thought it would be ugly, and so > > far I could blame buggy BIOSes for the delay. If you want to work up > > a patch, I'll gladly review and apply something that does such. > > But would this actually be useful for the cases where EDD has been > broken so far ? AFAIR, the bootparam parsing happens /after/ > we do the 16-bit EDD asm foo.
AFAIR the VGA setup code does its bootparam parsing by hand because it suffers from the same problem.
Regards, Carl-Daniel -- http://www.hailfinger.org/ - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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