Re: [Xen-devel] [PATCH v8 10/13] x86/xen: Bypass intr mode setup in enlighten_pv system

[Dou Liyang <douly.fnst@xxxxxxxxxxxxxx>]

Hi Juergen,

At 08/28/2017 12:32 PM, Juergen Gross wrote:
> On 28/08/17 06:25, Juergen Gross wrote:
> > On 28/08/17 05:20, Dou Liyang wrote:
> > > XEN PV overrides smp_prepare_cpus(). xen_pv_smp_prepare_cpus()
> > > initializes interrupts in the XEN PV specific way and does not invoke
> > > native_smp_prepare_cpus(). As a consequence, x86_init.intr_mode_init() is
> > > not invoked either.
> > >
> > > The invocation of x86_init.intr_mode_init() will be moved from
> > > native_smp_prepare_cpus() in a follow up patch to solve <INSERT
> > > REASON/PROBLEM>.
> > Can you be a little bit more precise here, please? :-)
> >
> > > That move would cause the invocation of x86_init.intr_mode_init() for XEN
> > > PV platforms. To prevent that, override the default x86_init.
> > > intr_mode_init() callback with a noop().
> > >
> > > [Rewrited by Thomas Gleixner <tglx@xxxxxxxxxxxxx>]
> > >
> > > Signed-off-by: Dou Liyang <douly.fnst@xxxxxxxxxxxxxx>
> > > Cc: xen-devel@xxxxxxxxxxxxxxxxxxxx
> > > Cc: boris.ostrovsky@xxxxxxxxxx
> > On which tree does this apply? Would be nice to get a hint against which
> > source this can be reviewed.
> Aah, just found the rest of the series. In case a single patch of a
> series isn't stand alone it would be nice to receive at least the cover
> letter of the series in order to know what its all about.
Sorry to confuse you, It's my fault.

Thank you for your reply. I understood. will CC the cover letter to
linux-xen and linux-acpi.

Thanks,
        dou.

> Juergen


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel