x86/apic/uv: Update the UV APIC driver check
Fix a bug in the OEM check function that determines if the system is a UV system and the BIOS is compatible with the kernel's UV apic driver. This prevents some possibly obscure panics and guards the system against being started on SGI hardware that does not have the required kernel support. Signed-off-by: NMike Travis <travis@sgi.com> Acked-by: NHedi Berriche <hedi@sgi.com> Acked-by: NDimitri Sivanich <sivanich@sgi.com> Link: http://lkml.kernel.org/r/20150409182629.112998930@asylum.americas.sgi.comSigned-off-by: NIngo Molnar <mingo@kernel.org>
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