[PATCH v4 11/12] x86: reserve setup_data ranges late after parsing memmap cmdline
bp at alien8.de
Fri Nov 29 11:56:56 EST 2013
On Fri, Nov 29, 2013 at 04:35:52PM +0800, Dave Young wrote:
> Is below changes ok to you?
Almost perfect! Just a micro-nitpick below:
> Currently e820_reserve_setup_data is called before parsing early params,
> it works in normal case. But for memmap=exactmap, the final memory ranges
> are created after parsing memmap= cmdline params, so the previous
> e820_reserve_setup_data has no effect. For example for setup_data ranges
> will still be marked as normal system ram, thus when later sysfs driver
> ioremap them kernel will warn about mapping normal ram.
> This patch fix it by moving the e820_reserve_setup_data callback after
> parsing early params so they can be set as reserved ranges and later
> ioremap will be fine with it.
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