RE: [tip:x86/hyperv] X86: Handle Hyper-V vmbus interrupts asspecial hypervisor interrupts
From: KY Srinivasan
Date: Tue Feb 12 2013 - 22:59:12 EST
> -----Original Message-----
> From: H. Peter Anvin [mailto:hpa@xxxxxxxxx]
> Sent: Tuesday, February 12, 2013 10:55 PM
> To: KY Srinivasan
> Cc: Yinghai Lu; mingo@xxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> tglx@xxxxxxxxxxxxx; hpa@xxxxxxxxxxxxxxx; linux-tip-commits@xxxxxxxxxxxxxxx
> Subject: Re: [tip:x86/hyperv] X86: Handle Hyper-V vmbus interrupts as special
> hypervisor interrupts
> On 02/12/2013 07:49 PM, KY Srinivasan wrote:
> >>> The issue was that you could turn on CONFIG_HYPERV without enabling
> >>> CONFIG_X86_LOCAL_APIC. Peter fixed it.
> >> He is asking why you are using IS_ENABLED() instead of #ifdef. The
> >> difference is that IS_ENABLED() works even for modules.
> > My mistake!
> Well, which one do you need?
I chose the IS_ENABLED() because I wanted to cover the case where HYPERV is configured as a module as well.
> H. Peter Anvin, Intel Open Source Technology Center
> I work for Intel. I don't speak on their behalf.