Messages in this thread | | | From | Alexander Kuleshov <> | Subject | [PATCH 0/2] x86/earlyprintk: setup earlyprintk as early as possible | Date | Mon, 11 May 2015 01:13:45 +0600 |
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As setup_early_printk passed to the early_param, it will be usable only after 'parse_early_param' function will be called from the 'setup_arch'. So we have earlyprintk during early boot and decompression. Next point after decompression of the kernel where we can use early_printk is after call of the 'parse_early_param'.
These patchset provides two patches where:
1. Move handling of the builtin command line to the separate function from the setup_arch. Now we can call it from the arch/x86/kernel/head{32,64}.c, and find 'earlyprintk' kernel command line paramter there.
2. Provide setup_serial_console function to setup serial earlyprintk in the arch/x86/kernel/head{32,64}.c
Alexander Kuleshov (2): x86/setup: update boot_command_line with builtin_cmdline in separate function x86/earlyprintk: setup earlyprintk as early as possible
arch/x86/include/asm/serial.h | 2 ++ arch/x86/include/asm/setup.h | 3 ++- arch/x86/kernel/early_printk.c | 25 +++++++++++++++++++++++++ arch/x86/kernel/head32.c | 6 ++++++ arch/x86/kernel/head64.c | 7 +++++++ arch/x86/kernel/setup.c | 28 +++++++++++++++------------- 6 files changed, 57 insertions(+), 14 deletions(-)
-- 2.4.0
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