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| author | Peter Zijlstra <peterz@infradead.org> | 2020-05-29 23:27:37 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 15:15:23 +0200 |
| commit | f9912ada82862df341b3e86864cbd532d0d24b84 (patch) | |
| tree | 4f66fac62be28d505c49dd4b974f7660d4c23c25 /arch/x86/kernel/idt.c | |
| parent | 84b6a3491567a540f955e18d8e615493afa36df0 (diff) | |
| download | linux-next-f9912ada82862df341b3e86864cbd532d0d24b84.tar.gz | |
x86/entry: Remove debug IDT frobbing
This is all unused now.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200529213321.245019500@infradead.org
Diffstat (limited to 'arch/x86/kernel/idt.c')
| -rw-r--r-- | arch/x86/kernel/idt.c | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c index bc9b0d1d7bb8..226c99229886 100644 --- a/arch/x86/kernel/idt.c +++ b/arch/x86/kernel/idt.c @@ -158,14 +158,6 @@ static const __initconst struct idt_data apic_idts[] = { static const __initconst struct idt_data early_pf_idts[] = { INTG(X86_TRAP_PF, asm_exc_page_fault), }; - -/* - * Override for the debug_idt. Same as the default, but with interrupt - * stack set to DEFAULT_STACK (0). Required for NMI trap handling. - */ -static const __initconst struct idt_data dbg_idts[] = { - INTG(X86_TRAP_DB, asm_exc_debug), -}; #endif /* Must be page-aligned because the real IDT is used in a fixmap. */ @@ -177,9 +169,6 @@ struct desc_ptr idt_descr __ro_after_init = { }; #ifdef CONFIG_X86_64 -/* No need to be aligned, but done to keep all IDTs defined the same way. */ -gate_desc debug_idt_table[IDT_ENTRIES] __page_aligned_bss; - /* * The exceptions which use Interrupt stacks. They are setup after * cpu_init() when the TSS has been initialized. @@ -192,15 +181,6 @@ static const __initconst struct idt_data ist_idts[] = { ISTG(X86_TRAP_MC, asm_exc_machine_check, IST_INDEX_MCE), #endif }; - -/* - * Override for the debug_idt. Same as the default, but with interrupt - * stack set to DEFAULT_STACK (0). Required for NMI trap handling. - */ -const struct desc_ptr debug_idt_descr = { - .size = IDT_ENTRIES * 16 - 1, - .address = (unsigned long) debug_idt_table, -}; #endif static inline void idt_init_desc(gate_desc *gate, const struct idt_data *d) @@ -292,16 +272,6 @@ void __init idt_setup_ist_traps(void) { idt_setup_from_table(idt_table, ist_idts, ARRAY_SIZE(ist_idts), true); } - -/** - * idt_setup_debugidt_traps - Initialize the debug idt table with debug traps - */ -void __init idt_setup_debugidt_traps(void) -{ - memcpy(&debug_idt_table, &idt_table, IDT_ENTRIES * 16); - - idt_setup_from_table(debug_idt_table, dbg_idts, ARRAY_SIZE(dbg_idts), false); -} #endif /** |