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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-05-21 22:05:42 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-06-11 15:15:15 +0200 |
| commit | 9c3b1f4975c46fc2932fd6d53e63c14f0ddf985f (patch) | |
| tree | d4d168ef93b060a87c13c5350602dab47b652164 /arch/x86/include | |
| parent | 720909a7abd351535bfb485a0ecce03c2e4467e2 (diff) | |
| download | linux-9c3b1f4975c46fc2932fd6d53e63c14f0ddf985f.tar.gz linux-9c3b1f4975c46fc2932fd6d53e63c14f0ddf985f.tar.bz2 linux-9c3b1f4975c46fc2932fd6d53e63c14f0ddf985f.zip | |
x86/entry: Convert KVM vectors to IDTENTRY_SYSVEC*
Convert KVM specific system vectors to IDTENTRY_SYSVEC*:
The two empty stub handlers which only increment the stats counter do no
need to run on the interrupt stack. Use IDTENTRY_SYSVEC_SIMPLE for them.
The wakeup handler does more work and runs on the interrupt stack.
None of these handlers need to save and restore the irq_regs pointer.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Andy Lutomirski <luto@kernel.org>
Link: https://lore.kernel.org/r/20200521202119.555715519@linutronix.de
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/entry_arch.h | 7 | ||||
| -rw-r--r-- | arch/x86/include/asm/hw_irq.h | 4 | ||||
| -rw-r--r-- | arch/x86/include/asm/idtentry.h | 6 | ||||
| -rw-r--r-- | arch/x86/include/asm/irq.h | 3 |
4 files changed, 6 insertions, 14 deletions
diff --git a/arch/x86/include/asm/entry_arch.h b/arch/x86/include/asm/entry_arch.h index 69a5320a4673..a01bb74244ac 100644 --- 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 - diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h index 7281c7e3a0f6..fd5e7c8825e1 100644 --- 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 diff --git a/arch/x86/include/asm/idtentry.h b/arch/x86/include/asm/idtentry.h index cd752e6cf5af..7f7c80bd272c 100644 --- a/arch/x86/include/asm/idtentry.h +++ b/arch/x86/include/asm/idtentry.h @@ -628,6 +628,12 @@ DECLARE_IDTENTRY_SYSVEC(IRQ_WORK_VECTOR, sysvec_irq_work); # 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 diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h index c7c43e86805a..f73dd3f8b043 100644 --- 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); |