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Re: [PATCH 2/2] Honor 'quiet' command line option in real mode boot decompressor.
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From:
Kristian <krh@...>
To: H. Peter Anvin <hpa@...>
Cc: <linux-kernel@...>
Subject:
Re: [PATCH 2/2] Honor 'quiet' command line option in real mode boot decompressor.
Date: Thursday, May 29, 2008 - 6:25 pm
On Thu, 2008-05-29 at 13:30 -0700, H. Peter Anvin wrote:
quoted text
> Kristian Høgsberg wrote: > >> You know... we already have a command-line parser in the real-mode part > >> of the boot code, and it already extracts the "quiet" option: we should > >> be able to do this by passing a bit in "loadflags" (bit 5 suggested.) > > > > Hmm, as far as I understand the boot code, the decompressor consists of > > just head_32/64.S and misc.c plus the #included inflate.c and the > > compressed image in piggy.o. In this environment there is no command > > line parser, it's only available once the image has been decompressed. > > > Or are you suggesting parsing the "quiet" option in the bootloader and > > then setting the loadflags bit from there? That's certainly doable, and > > I can update grub accordingly, but just parsing the command line seems > > like a simple, more local fix. I don't have a strong preference, > > though. > > I think you're missing something: the decompressor is the *second stage* > of the boot code; the first stage is the real-mode code (arch/x86/boot). > I'm suggesting passing the flag from the real-mode code to the > decompressor, not from the boot loader (in the common case.)
Indeed, I had it the wrong way around. I like the bootflag approach, updated patches coming up. thanks, Kristian --
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Messages in current thread:
[PATCH 1/2 v3] Use structs instead of hardcoded offsets in x...
, Kristian Høgsberg
, (Thu May 29, 1:27 pm)
Re: [PATCH 1/2 v3] Use structs instead of hardcoded offsets ...
, H. Peter Anvin
, (Thu May 29, 2:48 pm)
Re: [PATCH 1/2 v3] Use structs instead of hardcoded offsets ...
, Kristian
, (Thu May 29, 3:58 pm)
[PATCH 2/2] Honor 'quiet' command line option in real mode b...
, Kristian Høgsberg
, (Thu May 29, 1:27 pm)
Re: [PATCH 2/2] Honor 'quiet' command line option in real mo...
, H. Peter Anvin
, (Thu May 29, 2:43 pm)
Re: [PATCH 2/2] Honor 'quiet' command line option in real mo...
, Kristian
, (Thu May 29, 3:55 pm)
Re: [PATCH 2/2] Honor 'quiet' command line option in real mo...
, H. Peter Anvin
, (Thu May 29, 4:30 pm)
Re: [PATCH 2/2] Honor 'quiet' command line option in real mo...
, Kristian
, (Thu May 29, 6:25 pm)
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