x86, cpu: Add forcepae parameter for booting PAE kernels on PAE-disabled Pentium M
Many Pentium M systems disable PAE but may have a functionally usable PAE implementation. This adds the "forcepae" parameter which bypasses the boot check for PAE, and sets the CPU as being PAE capable. Using this parameter will taint the kernel with TAINT_CPU_OUT_OF_SPEC. Signed-off-by: NChris Bainbridge <chris.bainbridge@gmail.com> Link: http://lkml.kernel.org/r/20140307114040.GA4997@localhostAcked-by: NBorislav Petkov <bp@suse.de> Signed-off-by: NH. Peter Anvin <hpa@zytor.com>
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