Messages in this thread | | | From | "Wu, Feng" <> | Subject | RE: [v4 3/3] x86, irq: Define a global vector for VT-d Posted-Interrupts | Date | Mon, 18 May 2015 02:44:53 +0000 |
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> -----Original Message----- > From: Thomas Gleixner [mailto:tglx@linutronix.de] > Sent: Friday, May 15, 2015 9:27 PM > To: Wu, Feng > 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 > > 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?
I will add the declaration in a header file in this patch.
> > > /* > > * 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
Good idea!
Thanks, Feng
> > > + inc_irq_stat(kvm_posted_intr_wakeup_ipis); > > + > > + if (wakeup_handler_callback) > > + wakeup_handler_callback(); > > + > > + irq_exit(); > > + > > + set_irq_regs(old_regs); > > +} > > Thanks, > > tglx
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