From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>, Peter Anvin <hpa@zytor.com>,
Peter Zijlstra <peterz@infradead.org>,
Andy Lutomirski <luto@kernel.org>, Borislav Petkov <bp@alien8.de>,
Steven Rostedt <rostedt@goodmis.org>
Subject: [patch V3 40/44] x86/idt: Move interrupt gate initialization to IDT code
Date: Mon, 28 Aug 2017 08:47:55 +0200 [thread overview]
Message-ID: <20170828064959.340209198@linutronix.de> (raw)
In-Reply-To: 20170828064715.802987421@linutronix.de
[-- Attachment #1: x86-idt--Move-interrupt-gate-initialization-to-idt-code.patch --]
[-- Type: text/plain, Size: 1982 bytes --]
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 <tglx@linutronix.de>
---
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);
next prev parent reply other threads:[~2017-08-28 6:54 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-28 6:47 [patch V3 00/44] x86: Cleanup IDT code Thomas Gleixner
2017-08-28 6:47 ` [patch V3 01/44] x86/irq: Remove vector_used_by_percpu_irq() Thomas Gleixner
2017-08-29 11:04 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 02/44] x86/irq: Unexport used_vectors Thomas Gleixner
2017-08-29 11:04 ` [tip:x86/apic] x86/irq: Unexport used_vectors[] tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 03/44] x86/irq: Get rid of the first_system_vector bogisity Thomas Gleixner
2017-08-29 11:04 ` [tip:x86/apic] x86/irq: Get rid of the 'first_system_vector' indirection bogosity tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 04/44] x86/irq: Remove duplicated used_vectors definition Thomas Gleixner
2017-08-29 11:05 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 05/44] x86/boot: Move EISA setup to a proper place Thomas Gleixner
2017-08-29 11:05 ` [tip:x86/apic] x86/boot: Move EISA setup to a separate file tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 06/44] x86/tracing: Introduce a static key for exception tracing Thomas Gleixner
2017-08-29 11:06 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 07/44] x86/traps: Simplify pagefault tracing logic Thomas Gleixner
2017-08-29 11:06 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 08/44] x86/apic: Remove the duplicated tracing version of local_timer_interrupt Thomas Gleixner
2017-08-29 11:07 ` [tip:x86/apic] x86/apic: Remove the duplicated tracing version of local_timer_interrupt() tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 09/44] x86/apic: Use this_cpu_ptr in local_timer_interrupt Thomas Gleixner
2017-08-29 11:07 ` [tip:x86/apic] x86/apic: Use this_cpu_ptr() in local_timer_interrupt() tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 10/44] x86/irq: Get rid of duplicated trace_x86_platform_ipi() code Thomas Gleixner
2017-08-29 11:07 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 11/44] x86/apic: Remove the duplicated tracing versions of interrupts Thomas Gleixner
2017-08-29 11:08 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 12/44] x86/irqwork: Get rid of duplicated tracing interrupt code Thomas Gleixner
2017-08-29 11:08 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 13/44] x86/mce: Remove " Thomas Gleixner
2017-08-29 11:08 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 14/44] x86/smp: Remove pointless duplicated " Thomas Gleixner
2017-08-29 11:09 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 15/44] x86/smp: Use static key for reschedule interrupt tracing Thomas Gleixner
2017-08-29 11:09 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 16/44] x86/idt: Remove tracing idt completely Thomas Gleixner
2017-08-29 11:10 ` [tip:x86/apic] x86/idt: Remove the tracing IDT completely tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 17/44] x86/idt: Cleanup the i386 low level entry macros Thomas Gleixner
2017-08-29 11:10 ` [tip:x86/apic] x86/idt: Clean up " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 18/44] x86/tracing: Disentangle pagefault and resched IPI tracing key Thomas Gleixner
2017-08-29 11:10 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 19/44] x86/ipi: Make platform IPI depend on APIC Thomas Gleixner
2017-08-29 11:11 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 20/44] x86/irq_work: Make it " Thomas Gleixner
2017-08-29 11:11 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 21/44] x86/tracing: Build tracepoints only when they are used Thomas Gleixner
2017-08-29 11:12 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 22/44] x86/idt: Unify gate_struct handling for 32/64bit Thomas Gleixner
2017-08-29 11:12 ` [tip:x86/apic] x86/idt: Unify gate_struct handling for 32/64-bit kernels tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 23/44] x86/percpu: Use static initializer for GDT entry Thomas Gleixner
2017-08-29 11:13 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 24/44] x86/fpu: Use bitfield accessors for desc_struct Thomas Gleixner
2017-08-29 11:13 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 25/44] x86: Replace access to desc_struct:a/b fields Thomas Gleixner
2017-08-29 11:13 ` [tip:x86/apic] x86/asm: " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 26/44] x86/gdt: Use bitfields for initialization Thomas Gleixner
2017-08-29 11:14 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 27/44] x86/ldttss: Cleanup 32bit descriptors Thomas Gleixner
2017-08-29 11:14 ` [tip:x86/apic] x86/ldttss: Clean up 32-bit descriptors tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 28/44] x86/idt: Create file for IDT related code Thomas Gleixner
2017-08-29 11:15 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 29/44] x86/idt: Move 32bit idt_descr to C code Thomas Gleixner
2017-08-29 11:15 ` [tip:x86/apic] x86/idt: Move 32-bit " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 30/44] x86/idt: Remove unused set_trap_gate() Thomas Gleixner
2017-08-29 11:16 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 31/44] x86/idt: Consolidate IDT invalidation Thomas Gleixner
2017-08-29 11:16 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 32/44] x86/idt: Move early IDT handler setup to IDT code Thomas Gleixner
2017-08-29 11:16 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 33/44] x86/idt: Move early IDT setup out of 32bit asm Thomas Gleixner
2017-08-29 11:17 ` [tip:x86/apic] x86/idt: Move early IDT setup out of 32-bit asm tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 34/44] x86/idt: Prepare for table based init Thomas Gleixner
2017-08-29 11:17 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 35/44] x86/idt: Switch early trap init to IDT tables Thomas Gleixner
2017-08-29 11:18 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 36/44] x86/idt: Move debug stack init to table based Thomas Gleixner
2017-08-29 11:18 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 37/44] x86/idt: Move ist stack based traps to table init Thomas Gleixner
2017-08-29 11:18 ` [tip:x86/apic] x86/idt: Move IST " tip-bot for Thomas Gleixner
2017-09-01 6:28 ` Andrei Vagin
2017-09-01 8:26 ` [PATCH] x86/idt: Fix the X86_TRAP_BP gate Ingo Molnar
2017-09-01 8:59 ` Thomas Gleixner
2017-09-01 9:09 ` [tip:x86/apic] " tip-bot for Ingo Molnar
2017-09-01 14:39 ` [PATCH] " Andrei Vagin
2017-08-28 6:47 ` [patch V3 38/44] x86/idt: Move regular trap init to tables Thomas Gleixner
2017-08-29 11:19 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 39/44] x86/idt: Move APIC gate initialization " Thomas Gleixner
2017-08-29 11:19 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` Thomas Gleixner [this message]
2017-08-29 11:20 ` [tip:x86/apic] x86/idt: Move interrupt gate initialization to IDT code tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 41/44] x86/idt: Remove unused functions/inlines Thomas Gleixner
2017-08-29 11:20 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 42/44] x86/idt: Deinline setup functions Thomas Gleixner
2017-08-29 11:20 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 43/44] x86/idt: Simplify alloc_intr_gate Thomas Gleixner
2017-08-28 14:35 ` KY Srinivasan
2017-08-29 11:21 ` [tip:x86/apic] x86/idt: Simplify alloc_intr_gate() tip-bot for Thomas Gleixner
2017-08-28 6:47 ` [patch V3 44/44] x86/idt: Hide set_intr_gate() Thomas Gleixner
2017-08-29 11:21 ` [tip:x86/apic] " tip-bot for Thomas Gleixner
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