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| author |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-09-19 17:44:56 +0000 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2011-09-20 16:09:48 +1000 |
| commit | 817c21ad9a1f00926f080265493923ada3458c63 (patch) | |
| tree | 84733af08a403e6f1c1846a2e9a21cf49276660d /arch/powerpc/kernel/prom.c | |
| parent | powerpc/powernv: Add OPAL takeover from PowerVM (diff) | |
| download | linux-dev-817c21ad9a1f00926f080265493923ada3458c63.tar.xz linux-dev-817c21ad9a1f00926f080265493923ada3458c63.zip | |
powerpc/powernv: Get kernel command line accross OPAL takeover
We stash it in boot_command_line which isn't in BSS and so won't
be overwritten. We then use that as a default cmd_line before
we walk the device-tree.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/prom.c')
| -rw-r--r-- | arch/powerpc/kernel/prom.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index 174e1e96175e..7b90c564e932 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -712,6 +712,13 @@ void __init early_init_devtree(void *params) of_scan_flat_dt(early_init_dt_scan_phyp_dump, NULL); #endif + /* Pre-initialize the cmd_line with the content of boot_commmand_line, + * which will be empty except when the content of the variable has + * been overriden by a bootloading mechanism. This happens typically + * with HAL takeover + */ + strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE); + /* Retrieve various informations from the /chosen node of the * device-tree, including the platform type, initrd location and * size, TCE reserve, and more ... |