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From: KY Srinivasan <kys@microsoft.com>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Yinghai Lu <yinghai@kernel.org>,
	"mingo@kernel.org" <mingo@kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"hpa@linux.intel.com" <hpa@linux.intel.com>,
	"linux-tip-commits@vger.kernel.org" 
	<linux-tip-commits@vger.kernel.org>
Subject: RE: [tip:x86/hyperv] X86: Handle Hyper-V vmbus interrupts as special hypervisor interrupts
Date: Wed, 13 Feb 2013 03:49:18 +0000	[thread overview]
Message-ID: <f6d62df8f3cb4076a2d3fe8a4f054a99@SN2PR03MB061.namprd03.prod.outlook.com> (raw)
In-Reply-To: <511B0C84.5040806@zytor.com>

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> -----Original Message-----
> From: H. Peter Anvin [mailto:hpa@zytor.com]
> Sent: Tuesday, February 12, 2013 10:46 PM
> To: KY Srinivasan
> Cc: Yinghai Lu; mingo@kernel.org; linux-kernel@vger.kernel.org;
> tglx@linutronix.de; hpa@linux.intel.com; linux-tip-commits@vger.kernel.org
> Subject: Re: [tip:x86/hyperv] X86: Handle Hyper-V vmbus interrupts as special
> hypervisor interrupts
> 
> On 02/12/2013 07:32 PM, KY Srinivasan wrote:
> >>>
> >>> +#if IS_ENABLED(CONFIG_HYPERV)
> >>> +apicinterrupt HYPERVISOR_CALLBACK_VECTOR \
> >>> +       hyperv_callback_vector hyperv_vector_handler
> >>> +#endif /* CONFIG_HYPERV */
> >>> +
> >>
> >> so #ifdef CONFIG_HYPERV does not work here?
> >
> > 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!

K. Y
> 
> 	-hpa
> 
> --
> H. Peter Anvin, Intel Open Source Technology Center
> I work for Intel.  I don't speak on their behalf.
> 
> 

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  reply	other threads:[~2013-02-13  3:49 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-02-04  1:21 [PATCH 0/3] X86: Deliver Hyper-V interrupts on a seperate IDT vector K. Y. Srinivasan
2013-02-04  1:22 ` [PATCH 1/3] x86: Hyper-V: register clocksource only if its advertised K. Y. Srinivasan
2013-02-04  1:22   ` [PATCH 2/3] X86: Add a check to catch Xen emulation of Hyper-V K. Y. Srinivasan
2013-02-13  0:57     ` [tip:x86/hyperv] " tip-bot for K. Y. Srinivasan
2013-04-17  7:06     ` [PATCH 2/3] " Michael S. Tsirkin
2013-04-17  9:10       ` KVM "Hyper-V emulation" -- this can be related "Linux on Hyper-V" ? Or "KVM emulates Hyper-V" as "Hyper-V emulates Hyper-V" ? " Victor Miasnikov
2013-04-17 10:16         ` Michael S. Tsirkin
2013-04-17 12:12           ` Jan Beulich
2013-04-17 12:15             ` Michael S. Tsirkin
     [not found]             ` <CAP2xkNqGgbYz1gdS85xjA8gwROGY89fAsiaRiGSE90xnzjJ4Xw@mail.gmail.com>
2013-04-17 12:43               ` Michael S. Tsirkin
2013-04-17 14:08                 ` Victor Miasnikov
2013-04-17 13:20       ` KY Srinivasan
2013-04-17 12:48         ` Michael S. Tsirkin
2013-04-17 14:12           ` KY Srinivasan
2013-04-17 13:25             ` Michael S. Tsirkin
2013-04-17 14:34               ` KY Srinivasan
2013-04-17 13:48                 ` Michael S. Tsirkin
2013-04-17 15:31                   ` KY Srinivasan
2013-04-17 15:50                     ` Jan Beulich
2013-04-17 16:28                       ` KY Srinivasan
2013-04-18  7:48                         ` Michael S. Tsirkin
2013-04-18 13:23                           ` KY Srinivasan
2013-04-18 13:30                             ` KY Srinivasan
2013-04-17 13:52         ` Jan Beulich
2013-04-17 13:01           ` Michael S. Tsirkin
2013-04-17 13:11             ` Michael S. Tsirkin
2013-04-17 14:09             ` Jan Beulich
2013-04-17 15:17               ` H. Peter Anvin
2013-02-04  1:22   ` [PATCH 3/3] X86: Handle Hyper-V vmbus interrupts as special hypervisor interrupts K. Y. Srinivasan
2013-02-13  0:58     ` [tip:x86/hyperv] " tip-bot for K. Y. Srinivasan
2013-02-13  1:58       ` [tip:x86/hyperv] x86, hyperv: HYPERV depends on X86_LOCAL_APIC tip-bot for H. Peter Anvin
2013-02-13  2:05         ` KY Srinivasan
2013-02-13  2:56       ` [tip:x86/hyperv] X86: Handle Hyper-V vmbus interrupts as special hypervisor interrupts Yinghai Lu
2013-02-13  3:32         ` KY Srinivasan
2013-02-13  3:46           ` H. Peter Anvin
2013-02-13  3:49             ` KY Srinivasan [this message]
2013-02-13  3:54               ` H. Peter Anvin
2013-02-13  3:58                 ` KY Srinivasan
2013-02-13  4:42                   ` Yinghai Lu
2013-02-13 12:47                     ` KY Srinivasan
2013-02-13  0:56   ` [tip:x86/hyperv] x86: Hyper-V: register clocksource only if its advertised tip-bot for Olaf Hering
2013-02-05 11:16 ` [PATCH 0/3] X86: Deliver Hyper-V interrupts on a seperate IDT vector KY Srinivasan

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