x86/boot: Clear direction and interrupt flags in startup_64

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startup_32 already clears these flags on entry, do it in startup_64 as
well for consistency.

The direction flag in particular is not specified to be cleared in the
boot protocol documentation, and we currently call into C code
(paging_prepare) without explicitly clearing it.

Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Link: https://lore.kernel.org/r/20200202171353.3736319-5-nivedita@alum.mit.edu
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>

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Arvind Sankar 2020-02-02 12:13:50 -05:00 • committed by Ard Biesheuvel

parent 32d009137a

commit cae0e431a0

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arch/x86/boot/compressed/head_64.S

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