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From: Thomas Gleixner <tglx@linutronix.de>
To: Feng Wu <feng.wu@intel.com>
Cc: mingo@redhat.com, hpa@zytor.com, linux-kernel@vger.kernel.org,
	jiang.liu@linux.intel.com
Subject: Re: [v4 3/3] x86, irq: Define a global vector for VT-d Posted-Interrupts
Date: Fri, 15 May 2015 15:27:11 +0200 (CEST)	[thread overview]
Message-ID: <alpine.DEB.2.11.1505151520260.4225@nanos> (raw)
In-Reply-To: <1430377608-10490-4-git-send-email-feng.wu@intel.com>

On Thu, 30 Apr 2015, Feng Wu wrote:
>  #ifdef CONFIG_HAVE_KVM
> +void (*wakeup_handler_callback)(void);
> +EXPORT_SYMBOL_GPL(wakeup_handler_callback);

The matching entry in a header file is going to come later again?

>  /*
>   * Handler for POSTED_INTERRUPT_VECTOR.
>   */
> @@ -256,6 +259,30 @@ __visible void smp_kvm_posted_intr_ipi(struct pt_regs *regs)
>  
>  	set_irq_regs(old_regs);
>  }
> +
> +/*
> + * Handler for POSTED_INTERRUPT_WAKEUP_VECTOR.
> + */
> +__visible void smp_kvm_posted_intr_wakeup_ipi(struct pt_regs *regs)
> +{
> +	struct pt_regs *old_regs = set_irq_regs(regs);
> +
> +	ack_APIC_irq();
> +
> +	irq_enter();
> +
> +	exit_idle();

  entering_ack_irq() please

> +	inc_irq_stat(kvm_posted_intr_wakeup_ipis);
> +
> +	if (wakeup_handler_callback)
> +		wakeup_handler_callback();
> +
> +	irq_exit();
> +
> +	set_irq_regs(old_regs);
> +}

Thanks,

	tglx

  reply	other threads:[~2015-05-15 13:27 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-30  7:06 [v4 0/3] prerequisite changes for VT-d posted-interrupts Feng Wu
2015-04-30  7:06 ` [v4 1/3] genirq: Introduce irq_set_vcpu_affinity() to target an interrupt to a VCPU Feng Wu
2015-05-13  8:09   ` Jiang Liu
2015-05-13 21:03     ` Thomas Gleixner
2015-05-14  1:04       ` Wu, Feng
2015-05-15 13:18   ` Thomas Gleixner
2015-05-18  2:42     ` Wu, Feng
2015-04-30  7:06 ` [v4 2/3] x86, irq: Implement irq_set_vcpu_affinity for pci_msi_ir_controller Feng Wu
2015-05-15 13:19   ` Thomas Gleixner
2015-04-30  7:06 ` [v4 3/3] x86, irq: Define a global vector for VT-d Posted-Interrupts Feng Wu
2015-05-15 13:27   ` Thomas Gleixner [this message]
2015-05-18  2:44     ` Wu, Feng
2015-05-07  2:05 ` [v4 0/3] prerequisite changes for VT-d posted-interrupts Wu, Feng

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