From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: x86@kernel.org, "Paul E. McKenney" <paulmck@kernel.org>,
Andy Lutomirski <luto@kernel.org>,
Alexandre Chartre <alexandre.chartre@oracle.com>,
Frederic Weisbecker <frederic@kernel.org>,
Paolo Bonzini <pbonzini@redhat.com>,
Sean Christopherson <sean.j.christopherson@intel.com>,
Masami Hiramatsu <mhiramat@kernel.org>,
Petr Mladek <pmladek@suse.com>,
Steven Rostedt <rostedt@goodmis.org>,
Joel Fernandes <joel@joelfernandes.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>,
Juergen Gross <jgross@suse.com>, Brian Gerst <brgerst@gmail.com>,
Mathieu Desnoyers <mathieu.desnoyers@efficios.com>,
Josh Poimboeuf <jpoimboe@redhat.com>,
Will Deacon <will@kernel.org>
Subject: [patch V4 part 5 21/31] x86/entry: Convert KVM vectors to IDTENTRY_SYSVEC
Date: Tue, 05 May 2020 15:54:02 +0200 [thread overview]
Message-ID: <20200505135830.189161434@linutronix.de> (raw)
In-Reply-To: 20200505135341.730586321@linutronix.de
From: Thomas Gleixner <tglx@linutronix.de>
Convert KVM specific system vectors to IDTENTRY_SYSVEC
- Implement the C entry point with DEFINE_IDTENTRY_SYSVEC
- Emit the ASM stub with DECLARE_IDTENTRY_SYSVEC
- Remove the ASM idtentries in 64bit
- Remove the BUILD_INTERRUPT entries in 32bit
- Remove the old prototypes
No functional change.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
---
arch/x86/entry/entry_64.S | 7 -------
arch/x86/include/asm/entry_arch.h | 7 -------
arch/x86/include/asm/hw_irq.h | 4 ----
arch/x86/include/asm/idtentry.h | 6 ++++++
arch/x86/include/asm/irq.h | 3 ---
arch/x86/kernel/idt.c | 6 +++---
arch/x86/kernel/irq.c | 15 ++++++---------
7 files changed, 15 insertions(+), 33 deletions(-)
--- a/arch/x86/entry/entry_64.S
+++ b/arch/x86/entry/entry_64.S
@@ -957,13 +957,6 @@ apicinterrupt3 \num \sym \do_sym
POP_SECTION_IRQENTRY
.endm
-
-#ifdef CONFIG_HAVE_KVM
-apicinterrupt3 POSTED_INTR_VECTOR kvm_posted_intr_ipi smp_kvm_posted_intr_ipi
-apicinterrupt3 POSTED_INTR_WAKEUP_VECTOR kvm_posted_intr_wakeup_ipi smp_kvm_posted_intr_wakeup_ipi
-apicinterrupt3 POSTED_INTR_NESTED_VECTOR kvm_posted_intr_nested_ipi smp_kvm_posted_intr_nested_ipi
-#endif
-
#ifdef CONFIG_SMP
apicinterrupt RESCHEDULE_VECTOR reschedule_interrupt smp_reschedule_interrupt
#endif
--- a/arch/x86/include/asm/entry_arch.h
+++ b/arch/x86/include/asm/entry_arch.h
@@ -13,10 +13,3 @@
#ifdef CONFIG_SMP
BUILD_INTERRUPT(reschedule_interrupt,RESCHEDULE_VECTOR)
#endif
-
-#ifdef CONFIG_HAVE_KVM
-BUILD_INTERRUPT(kvm_posted_intr_ipi, POSTED_INTR_VECTOR)
-BUILD_INTERRUPT(kvm_posted_intr_wakeup_ipi, POSTED_INTR_WAKEUP_VECTOR)
-BUILD_INTERRUPT(kvm_posted_intr_nested_ipi, POSTED_INTR_NESTED_VECTOR)
-#endif
-
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -29,10 +29,6 @@
#include <asm/sections.h>
/* Interrupt handlers registered during init_IRQ */
-extern asmlinkage void kvm_posted_intr_ipi(void);
-extern asmlinkage void kvm_posted_intr_wakeup_ipi(void);
-extern asmlinkage void kvm_posted_intr_nested_ipi(void);
-
extern asmlinkage void reschedule_interrupt(void);
#ifdef CONFIG_X86_LOCAL_APIC
--- a/arch/x86/include/asm/idtentry.h
+++ b/arch/x86/include/asm/idtentry.h
@@ -602,6 +602,12 @@ DECLARE_IDTENTRY_SYSVEC(IRQ_WORK_VECTOR,
# endif
#endif
+#ifdef CONFIG_HAVE_KVM
+DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_VECTOR, sysvec_kvm_posted_intr_ipi);
+DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_WAKEUP_VECTOR, sysvec_kvm_posted_intr_wakeup_ipi);
+DECLARE_IDTENTRY_SYSVEC(POSTED_INTR_NESTED_VECTOR, sysvec_kvm_posted_intr_nested_ipi);
+#endif
+
#undef X86_TRAP_OTHER
#endif
--- a/arch/x86/include/asm/irq.h
+++ b/arch/x86/include/asm/irq.h
@@ -26,9 +26,6 @@ extern void fixup_irqs(void);
#ifdef CONFIG_HAVE_KVM
extern void kvm_set_posted_intr_wakeup_handler(void (*handler)(void));
-extern __visible void smp_kvm_posted_intr_ipi(struct pt_regs *regs);
-extern __visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs);
-extern __visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs);
#endif
extern void (*x86_platform_ipi_callback)(void);
--- a/arch/x86/kernel/idt.c
+++ b/arch/x86/kernel/idt.c
@@ -132,9 +132,9 @@ static const __initconst struct idt_data
INTG(LOCAL_TIMER_VECTOR, asm_sysvec_apic_timer_interrupt),
INTG(X86_PLATFORM_IPI_VECTOR, asm_sysvec_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),
+ INTG(POSTED_INTR_VECTOR, asm_sysvec_kvm_posted_intr_ipi),
+ INTG(POSTED_INTR_WAKEUP_VECTOR, asm_sysvec_kvm_posted_intr_wakeup_ipi),
+ INTG(POSTED_INTR_NESTED_VECTOR, asm_sysvec_kvm_posted_intr_nested_ipi),
# endif
# ifdef CONFIG_IRQ_WORK
INTG(IRQ_WORK_VECTOR, asm_sysvec_irq_work),
--- a/arch/x86/kernel/irq.c
+++ b/arch/x86/kernel/irq.c
@@ -293,40 +293,37 @@ EXPORT_SYMBOL_GPL(kvm_set_posted_intr_wa
/*
* Handler for POSTED_INTERRUPT_VECTOR.
*/
-__visible void smp_kvm_posted_intr_ipi(struct pt_regs *regs)
+DEFINE_IDTENTRY_SYSVEC(sysvec_kvm_posted_intr_ipi)
{
struct pt_regs *old_regs = set_irq_regs(regs);
- entering_ack_irq();
+ ack_APIC_irq();
inc_irq_stat(kvm_posted_intr_ipis);
- exiting_irq();
set_irq_regs(old_regs);
}
/*
* Handler for POSTED_INTERRUPT_WAKEUP_VECTOR.
*/
-__visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs)
+DEFINE_IDTENTRY_SYSVEC(sysvec_kvm_posted_intr_wakeup_ipi)
{
struct pt_regs *old_regs = set_irq_regs(regs);
- entering_ack_irq();
+ ack_APIC_irq();
inc_irq_stat(kvm_posted_intr_wakeup_ipis);
kvm_posted_intr_wakeup_handler();
- exiting_irq();
set_irq_regs(old_regs);
}
/*
* Handler for POSTED_INTERRUPT_NESTED_VECTOR.
*/
-__visible void smp_kvm_posted_intr_nested_ipi(struct pt_regs *regs)
+DEFINE_IDTENTRY_SYSVEC(sysvec_kvm_posted_intr_nested_ipi)
{
struct pt_regs *old_regs = set_irq_regs(regs);
- entering_ack_irq();
+ ack_APIC_irq();
inc_irq_stat(kvm_posted_intr_nested_ipis);
- exiting_irq();
set_irq_regs(old_regs);
}
#endif
next prev parent reply other threads:[~2020-05-05 14:17 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-05 13:53 [patch V4 part 5 00/31] x86/entry: Entry/exception code rework, Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 01/31] genirq: Provide irq_enter/exit_rcu() Thomas Gleixner
2020-05-15 5:53 ` Andy Lutomirski
2020-05-05 13:53 ` [patch V4 part 5 02/31] x86/entry: Provide helpers for execute on irqstack Thomas Gleixner
2020-05-06 8:20 ` Thomas Gleixner
2020-05-10 4:33 ` Lai Jiangshan
2020-05-11 9:07 ` Alexandre Chartre
2020-05-11 11:54 ` Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 03/31] x86/entry/64: Move softirq stack switch to C Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 04/31] x86/entry: Split idtentry_enter/exit() Thomas Gleixner
2020-05-11 12:42 ` Alexandre Chartre
2020-05-05 13:53 ` [patch V4 part 5 05/31] x86/entry: Switch XEN/PV hypercall entry to IDTENTRY Thomas Gleixner
2020-05-07 2:11 ` Boris Ostrovsky
2020-05-07 8:30 ` Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 06/31] x86/entry/64: Simplify idtentry_body Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 07/31] x86/entry: Provide idtentry_entry/exit_cond_rcu() Thomas Gleixner
2020-05-11 13:53 ` Alexandre Chartre
2020-05-11 14:13 ` Peter Zijlstra
2020-05-12 16:30 ` Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 08/31] x86/entry: Switch page fault exception to IDTENTRY_RAW Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 09/31] x86/entry: Remove the transition leftovers Thomas Gleixner
2020-05-11 14:11 ` Alexandre Chartre
2020-05-05 13:53 ` [patch V4 part 5 10/31] x86/entry: Change exit path of xen_failsafe_callback Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 11/31] x86/entry/64: Remove error_exit Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 12/31] x86/entry/32: Remove common_exception Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 13/31] x86/irq: Convey vector as argument and not in ptregs Thomas Gleixner
2020-05-10 2:44 ` Lai Jiangshan
2020-05-11 14:35 ` Thomas Gleixner
2020-05-11 15:11 ` Lai Jiangshan
2020-05-05 13:53 ` [patch V4 part 5 14/31] x86/irq/64: Provide handle_irq() Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 15/31] x86/entry: Add IRQENTRY_IRQ macro Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 16/31] x86/entry: Use idtentry for interrupts Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 17/31] x86/entry: Provide IDTENTRY_SYSVEC Thomas Gleixner
2020-05-05 13:53 ` [patch V4 part 5 18/31] x86/entry: Convert APIC interrupts to IDTENTRY_SYSVEC Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 19/31] x86/entry: Convert SMP system vectors " Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 20/31] x86/entry: Convert various system vectors Thomas Gleixner
2020-05-05 13:54 ` Thomas Gleixner [this message]
2020-05-05 13:54 ` [patch V4 part 5 22/31] x86/entry: Convert various hypervisor vectors to IDTENTRY_SYSVEC Thomas Gleixner
2020-05-06 16:56 ` Wei Liu
2020-05-06 17:11 ` Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 23/31] x86/entry: Convert XEN hypercall vector " Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 24/31] x86/entry: Convert reschedule interrupt to IDTENTRY_RAW Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 25/31] x86/entry: Remove the apic/BUILD interrupt leftovers Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 26/31] x86/entry/64: Remove IRQ stack switching ASM Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 27/31] x86/entry: Make enter_from_user_mode() static Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 28/31] x86/entry/32: Remove redundant irq disable code Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 29/31] x86/entry/64: Remove TRACE_IRQS_*_DEBUG Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 30/31] x86/entry: Move paranoid irq tracing out of ASM code Thomas Gleixner
2020-05-05 13:54 ` [patch V4 part 5 31/31] x86/entry: Remove the TRACE_IRQS cruft Thomas Gleixner
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