From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751831AbdH1Gyx (ORCPT ); Mon, 28 Aug 2017 02:54:53 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:45879 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751600AbdH1Gxf (ORCPT ); Mon, 28 Aug 2017 02:53:35 -0400 Message-Id: <20170828064959.340209198@linutronix.de> User-Agent: quilt/0.63-1 Date: Mon, 28 Aug 2017 08:47:55 +0200 From: Thomas Gleixner To: LKML Cc: Ingo Molnar , Peter Anvin , Peter Zijlstra , Andy Lutomirski , Borislav Petkov , Steven Rostedt Subject: [patch V3 40/44] x86/idt: Move interrupt gate initialization to IDT code References: <20170828064715.802987421@linutronix.de> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-15 Content-Disposition: inline; filename=x86-idt--Move-interrupt-gate-initialization-to-idt-code.patch Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Move the gate intialization from interrupt init to the IDT code so all IDT related operations are at a single place. Signed-off-by: Thomas Gleixner --- arch/x86/kernel/idt.c | 18 ++++++++++++++++++ arch/x86/kernel/irqinit.c | 18 ------------------ 2 files changed, 18 insertions(+), 18 deletions(-) --- a/arch/x86/kernel/idt.c +++ b/arch/x86/kernel/idt.c @@ -286,7 +286,25 @@ void __init idt_setup_debugidt_traps(voi */ void __init idt_setup_apic_and_irq_gates(void) { + int i = FIRST_EXTERNAL_VECTOR; + void *entry; + idt_setup_from_table(idt_table, apic_idts, ARRAY_SIZE(apic_idts)); + + for_each_clear_bit_from(i, used_vectors, FIRST_SYSTEM_VECTOR) { + entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR); + set_intr_gate(i, entry); + } + + for_each_clear_bit_from(i, used_vectors, NR_VECTORS) { +#ifdef CONFIG_X86_LOCAL_APIC + set_bit(i, used_vectors); + set_intr_gate(i, spurious_interrupt); +#else + entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR); + set_intr_gate(i, entry); +#endif + } } /** --- a/arch/x86/kernel/irqinit.c +++ b/arch/x86/kernel/irqinit.c @@ -89,29 +89,11 @@ void __init init_IRQ(void) void __init native_init_IRQ(void) { - int i; - /* Execute any quirks before the call gates are initialised: */ x86_init.irqs.pre_vector_init(); idt_setup_apic_and_irq_gates(); - /* - * Cover the whole vector space, no vector can escape - * us. (some of these will be overridden and become - * 'special' SMP interrupts) - */ - i = FIRST_EXTERNAL_VECTOR; - for_each_clear_bit_from(i, used_vectors, FIRST_SYSTEM_VECTOR) { - /* IA32_SYSCALL_VECTOR could be used in trap_init already. */ - set_intr_gate(i, irq_entries_start + - 8 * (i - FIRST_EXTERNAL_VECTOR)); - } -#ifdef CONFIG_X86_LOCAL_APIC - for_each_clear_bit_from(i, used_vectors, NR_VECTORS) - set_intr_gate(i, spurious_interrupt); -#endif - if (!acpi_ioapic && !of_ioapic && nr_legacy_irqs()) setup_irq(2, &irq2);