lkml.org 
[lkml]   [2013]   [Jan]   [22]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
SubjectRe: [PATCH 1/1] X86: Handle Hyper-V vmbus interrupts as special hypervisor interrupts
On Fri, Jan 18, 2013 at 03:27:33PM +0000, KY Srinivasan wrote:
>
>
> > -----Original Message-----
> > From: Borislav Petkov [mailto:bp@alien8.de]
> > Sent: Friday, January 18, 2013 8:11 AM
> > To: KY Srinivasan
> > Cc: gregkh@linuxfoundation.org; linux-kernel@vger.kernel.org;
> > devel@linuxdriverproject.org; olaf@aepfle.de; apw@canonical.com;
> > jasowang@redhat.com; tglx@linutronix.de; H. Peter Anvin; Ingo Molnar
> > Subject: Re: [PATCH 1/1] X86: Handle Hyper-V vmbus interrupts as special
> > hypervisor interrupts
> >
> > On Thu, Jan 17, 2013 at 04:39:37PM -0800, K. Y. Srinivasan wrote:
> > >
> > > Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
> > > ---
> > > arch/x86/include/asm/irq_vectors.h | 2 +
> > > arch/x86/include/asm/mshyperv.h | 4 +++
> > > arch/x86/kernel/cpu/mshyperv.c | 39
> > ++++++++++++++++++++++++++++++++++++
> > > arch/x86/kernel/entry_32.S | 7 ++++++
> > > arch/x86/kernel/entry_64.S | 5 ++++
> > > 5 files changed, 57 insertions(+), 0 deletions(-)
> > >
> > > diff --git a/arch/x86/include/asm/irq_vectors.h
> > b/arch/x86/include/asm/irq_vectors.h
> > > index 1508e51..c2ff239 100644
> > > --- a/arch/x86/include/asm/irq_vectors.h
> > > +++ b/arch/x86/include/asm/irq_vectors.h
> > > @@ -112,6 +112,8 @@
> > > /* Xen vector callback to receive events in a HVM domain */
> > > #define XEN_HVM_EVTCHN_CALLBACK 0xf3
> > >
> > > +/* Hyper-V vector callback to receive vmbus interrupts*/
> > > +#define HYPER_V_CALLBACK_VECTOR 0xf2
> >
> > Btw, could those hypervisor vectors be merged into one VIRT_INTR_VECTOR
> > and be shared between the hypervisors? I mean, you can't have a xen and
> > hyperv hypervisor running next to each other and fihgting over that
> > vector, right?
>
> You are right; we could just have one vector for this. Let me wait for other comments and
> input from Xen maintainers before I make this change.
>
> Regards,
>

Looks OK to me.

> K. Y
> >
> > --
> > Regards/Gruss,
> > Boris.
> >
> > Sent from a fat crate under my desk. Formatting is fine.
> > --
> >
>


\
 
 \ /
  Last update: 2013-01-23 00:02    [W:0.141 / U:0.320 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site