From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: Keir Fraser <keir@xen.org>,
Ian Jackson <Ian.Jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>,
Ian Campbell <Ian.Campbell@eu.citrix.com>,
Andrew Cooper <andrew.cooper3@citrix.com>,
xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: [PATCH 3/4] console: adjust IRQ initialization
Date: Mon, 7 Mar 2016 17:10:19 -0500 [thread overview]
Message-ID: <20160307221018.GC11098@x230.dumpdata.com> (raw)
In-Reply-To: <56CC50C902000078000D52D7@prv-mh.provo.novell.com>
On Tue, Feb 23, 2016 at 04:30:01AM -0700, Jan Beulich wrote:
> In order for a Xen internal PCI device driver to enable MSI on the
> device, we need another hook which the driver can use to create the IRQ
> (doing this in the init_preirq hook is too early, since IRQ code hasn't
> got initialized at that time yet, and doing it in init_postirq is too
> late because at least on x86 smp_intr_init() needs to know the IRQ
> number).
>
> On x86 this additionally requires a slight ordering change to IRQ
> initialization, to facilitate calling the new hook between basic
> initialization and the call path leading to smp_intr_init().
>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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next prev parent reply other threads:[~2016-03-07 22:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-02-23 11:22 [PATCH 0/4] ns16550: enable support for Pericom controllers Jan Beulich
2016-02-23 11:28 ` [PATCH 1/4] ns16550: store pointer to config parameters for PCI Jan Beulich
2016-03-07 21:06 ` Konrad Rzeszutek Wilk
2016-02-23 11:28 ` [PATCH 2/4] ns16550: enable Pericom controller support Jan Beulich
2016-03-07 22:04 ` Konrad Rzeszutek Wilk
2016-03-08 8:48 ` Jan Beulich
2016-03-09 16:52 ` Konrad Rzeszutek Wilk
2016-03-09 17:01 ` Jan Beulich
2016-03-11 2:31 ` Konrad Rzeszutek Wilk
2016-03-11 11:02 ` Jan Beulich
2016-03-22 13:19 ` [PATCH v2 " Jan Beulich
2016-03-28 14:46 ` Konrad Rzeszutek Wilk
2016-02-23 11:30 ` [PATCH 3/4] console: adjust IRQ initialization Jan Beulich
2016-03-07 22:10 ` Konrad Rzeszutek Wilk [this message]
2016-02-23 11:30 ` [PATCH RFC 4/4] ns16550: enable use of PCI MSI Jan Beulich
2016-02-29 16:56 ` [PATCH 0/4] ns16550: enable support for Pericom controllers Konrad Rzeszutek Wilk
2016-02-29 17:03 ` Jan Beulich
2016-03-04 13:19 ` Ping: " Jan Beulich
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