x86: Use __nostackprotect for sme_encrypt_kernel
Commitbacf6b499e
("x86/mm: Use a struct to reduce parameters for SME PGD mapping") moved some parameters into a structure. The structure was large enough to trigger the stack protection canary in sme_encrypt_kernel which doesn't work this early, causing reboots. Mark sme_encrypt_kernel appropriately to not use the canary. Fixes:bacf6b499e
("x86/mm: Use a struct to reduce parameters for SME PGD mapping") Signed-off-by: Laura Abbott <labbott@redhat.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Ingo Molnar <mingo@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -738,7 +738,7 @@ static unsigned long __init sme_pgtable_calc(unsigned long len)
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return total;
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}
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void __init sme_encrypt_kernel(struct boot_params *bp)
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void __init __nostackprotector sme_encrypt_kernel(struct boot_params *bp)
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{
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unsigned long workarea_start, workarea_end, workarea_len;
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unsigned long execute_start, execute_end, execute_len;
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