From 636a7598f65938e1dbacafec74c2e3acdc66bd4d Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 28 Aug 2017 08:47:54 +0200
Subject: x86/idt: Move APIC gate initialization to tables

Replace the APIC/SMP vector gate initialization with the table based
mechanism.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170828064959.260177013@linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/idt.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

(limited to 'arch/x86/kernel/idt.c')

diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c
index 14d9eb29763c..4327104f5af8 100644
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -103,6 +103,46 @@ static const __initdata struct idt_data def_idts[] = {
 #endif
 };
 
+/*
+ * The APIC and SMP idt entries
+ */
+static const __initdata struct idt_data apic_idts[] = {
+#ifdef CONFIG_SMP
+	INTG(RESCHEDULE_VECTOR,		reschedule_interrupt),
+	INTG(CALL_FUNCTION_VECTOR,	call_function_interrupt),
+	INTG(CALL_FUNCTION_SINGLE_VECTOR, call_function_single_interrupt),
+	INTG(IRQ_MOVE_CLEANUP_VECTOR,	irq_move_cleanup_interrupt),
+	INTG(REBOOT_VECTOR,		reboot_interrupt),
+#endif
+
+#ifdef CONFIG_X86_THERMAL_VECTOR
+	INTG(THERMAL_APIC_VECTOR,	thermal_interrupt),
+#endif
+
+#ifdef CONFIG_X86_MCE_THRESHOLD
+	INTG(THRESHOLD_APIC_VECTOR,	threshold_interrupt),
+#endif
+
+#ifdef CONFIG_X86_MCE_AMD
+	INTG(DEFERRED_ERROR_VECTOR,	deferred_error_interrupt),
+#endif
+
+#ifdef CONFIG_X86_LOCAL_APIC
+	INTG(LOCAL_TIMER_VECTOR,	apic_timer_interrupt),
+	INTG(X86_PLATFORM_IPI_VECTOR,	x86_platform_ipi),
+# ifdef CONFIG_HAVE_KVM
+	INTG(POSTED_INTR_VECTOR,	kvm_posted_intr_ipi),
+	INTG(POSTED_INTR_WAKEUP_VECTOR, kvm_posted_intr_wakeup_ipi),
+	INTG(POSTED_INTR_NESTED_VECTOR, kvm_posted_intr_nested_ipi),
+# endif
+# ifdef CONFIG_IRQ_WORK
+	INTG(IRQ_WORK_VECTOR,		irq_work_interrupt),
+# endif
+	INTG(SPURIOUS_APIC_VECTOR,	spurious_interrupt),
+	INTG(ERROR_APIC_VECTOR,		error_interrupt),
+#endif
+};
+
 #ifdef CONFIG_X86_64
 /*
  * Early traps running on the DEFAULT_STACK because the other interrupt
@@ -241,6 +281,14 @@ void __init idt_setup_debugidt_traps(void)
 }
 #endif
 
+/**
+ * idt_setup_apic_and_irq_gates - Setup APIC/SMP and normal interrupt gates
+ */
+void __init idt_setup_apic_and_irq_gates(void)
+{
+	idt_setup_from_table(idt_table, apic_idts, ARRAY_SIZE(apic_idts));
+}
+
 /**
  * idt_setup_early_handler - Initializes the idt table with early handlers
  */
-- 
cgit