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x86, espfix: Make espfix64 a Kconfig option, fix UML
Make espfix64 a hidden Kconfig option. This fixes the x86-64 UML build which had broken due to the non-existence of init_espfix_bsp() in UML: since UML uses its own Kconfig, this option does not appear in the UML build. This also makes it possible to make support for 16-bit segments a configuration option, for the people who want to minimize the size of the kernel. Reported-by: Ingo Molnar <[email protected]> Signed-off-by: H. Peter Anvin <[email protected]> Cc: Richard Weinberger <[email protected]> Link: http://lkml.kernel.org/r/[email protected]
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4 changed files with 7 additions and 3 deletions
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@ -617,7 +617,7 @@ asmlinkage void __init start_kernel(void)
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if (efi_enabled(EFI_RUNTIME_SERVICES))
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efi_enter_virtual_mode();
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#endif
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#ifdef CONFIG_X86_64
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#ifdef CONFIG_X86_ESPFIX64
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/* Should be run before the first non-init thread is created */
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init_espfix_bsp();
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#endif
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