Messages in this thread | | | Date | Tue, 8 Oct 2019 09:18:45 +0200 | From | Borislav Petkov <> | Subject | Re: [PATCH v22 07/24] x86/sgx: Add wrappers for ENCLS leaf functions |
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On Mon, Oct 07, 2019 at 09:04:05PM -0700, Sean Christopherson wrote: > > BIT(30) > > This is intentionally open coded so that it can be stringified in asm.
It stringifies just fine with the BIT() macro too:
# 187 "arch/x86/kernel/cpu/sgx/encls.h" 1 1: .byte 0x0f, 0x01, 0xcf; 2: .section .fixup,"ax" 3: orl $((((1UL))) << (30)),%eax jmp 2b .previous
and the resulting object:
Disassembly of section .fixup:
0000000000000000 <.fixup>: 0: 0d 00 00 00 40 or $0x40000000,%eax 5: e9 00 00 00 00 jmpq a <__addressable_sgx_free_page107+0x2>
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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