xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
포크 0
코드 이슈 풀 리퀘스트 Actions Packages Projects 릴리즈 위키 활동

x86/entry: Remove debug IDT frobbing

소스 검색 
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
This commit is contained in:
Peter Zijlstra
2020-05-29 23:27:37 +02:00
committed by Thomas Gleixner
부모 84b6a34915
커밋 f9912ada82
5개의 변경된 파일과 1개의 추가작업 그리고 108개의 파일을 삭제
Download Patch File Download Diff File Expand all files Collapse all files

30
arch/x86/kernel/idt.c
파일 보기

@@ -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
/**