x86/microcode: Initialize the driver late when facilities are up
Running microcode_init() from setup_arch() is a bad idea because not even kmalloc() is ready at that point and the loader does all kinds of allocations and init/registration with various subsystems. Make it a late initcall when required facilities are initialized so that the microcode driver initialization can succeed too. Reported-and-tested-by: Markus Trippelsdorf <markus@trippelsdorf.de> Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20151120112400.GC4028@pd.tnic Signed-off-by: Ingo Molnar <mingo@kernel.org>
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@ -698,3 +698,4 @@ int __init microcode_init(void)
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return error;
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}
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late_initcall(microcode_init);
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@ -1250,8 +1250,6 @@ void __init setup_arch(char **cmdline_p)
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if (efi_enabled(EFI_BOOT))
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efi_apply_memmap_quirks();
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#endif
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microcode_init();
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}
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#ifdef CONFIG_X86_32
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