x86: Use section .data.page_aligned for the idt_table. (07e81d61) · Commits · 戴 / test

The .data.idt section is just squashed into the .data.page_aligned output section by the linker script anyway, so it might as well be in the .data.page_aligned section. This eliminates all references to .data.idt on x86. Signed-off-by:

Tim Abbott <tabbott@ksplice.com> Cc: Ingo Molnar <mingo@redhat.com> Signed-off-by:

H. Peter Anvin <hpa@zytor.com>

arch/x86/kernel/traps.c

+2 −4

Original line number	Diff line number	Diff line
		@@ -73,11 +73,9 @@ char ignore_fpu_irq;

		/*
		* The IDT has to be page-aligned to simplify the Pentium
		* F0 0F bug workaround.. We have a special link segment
		* for this.
		* F0 0F bug workaround.
		*/
		gate_desc idt_table[NR_VECTORS]
		__attribute__((__section__(".data.idt"))) = { { { { 0, 0 } } }, };
		gate_desc idt_table[NR_VECTORS] __page_aligned_data = { { { { 0, 0 } } }, };
		#endif

		DECLARE_BITMAP(used_vectors, NR_VECTORS);

arch/x86/kernel/vmlinux.lds.S

+0 −1

Original line number	Diff line number	Diff line
		@@ -112,7 +112,6 @@ SECTIONS
		#endif

		PAGE_ALIGNED_DATA(PAGE_SIZE)
		*(.data.idt)

		CACHELINE_ALIGNED_DATA(CONFIG_X86_L1_CACHE_BYTES)

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