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From: Konrad Rzeszutek Wilk <konrad@kernel.org>
To: "Liu, Jinsong" <jinsong.liu@intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Jan Beulich <jbeulich@suse.com>,
	"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: Re: [Xen-devel] [PATCH 1/2] Xen acpi pad implement
Date: Tue, 30 Oct 2012 09:37:22 -0400	[thread overview]
Message-ID: <20121030133720.GA27463@phenom.dumpdata.com> (raw)
In-Reply-To: <DE8DF0795D48FD4CA783C40EC8292335374C86@SHSMSX101.ccr.corp.intel.com>

> > +config XEN_ACPI_PAD_STUB
> > +	bool
> > +	depends on XEN_DOM0 && X86_64 && ACPI
> > +	default n
> > +
> 
> This Kconfig is pointless, if CONFIG_XEN_ACPI_PAD_STUB = n, native pad would successfully registerred, and then mwait #UD (we would revert df88b2d96e36d9a9e325bfcd12eb45671cbbc937, right?). So xen stub logic should unconditionally built-in kernel.


Potentially. Keep in mind that there is no need to built this if the
kernel is not built with ACPI.
.. snip.
> > +subsys_initcall(xen_acpi_pad_stub_init);
> 
> I'm still confused. In this way there are xen-acpi-pad-stub.c and xen-acpi-pad.c, and you want to let xen-acpi-pad loaded as module, right? how can xen-acpi-pad logic work when it was insmoded?

Via the register/unregister calls that this provides? Or does ACPI bus
drivers get immediately called once the call acpi_bus_register_driver?

Or can one 'poke' the 'add' and 'remove' calls so that once the "true"
PAD driver is loaded it will restart the ops->add call?

  reply	other threads:[~2012-10-30 13:49 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-25 12:19 Liu, Jinsong
2012-10-25 14:23 ` [Xen-devel] " Jan Beulich
2012-10-26  6:18   ` Liu, Jinsong
2012-10-26 12:02     ` Jan Beulich
2012-10-26 12:37       ` Liu, Jinsong
2012-10-26 14:00         ` Liu, Jinsong
2012-10-26 20:14           ` Konrad Rzeszutek Wilk
2012-10-29  3:38             ` Liu, Jinsong
2012-10-29 12:39               ` Konrad Rzeszutek Wilk
2012-10-30  7:58                 ` Liu, Jinsong
2012-10-30 13:37                   ` Konrad Rzeszutek Wilk [this message]
2012-10-30 15:18                     ` Liu, Jinsong
2012-10-31 13:51                       ` Konrad Rzeszutek Wilk
2012-10-31 15:07                         ` Liu, Jinsong
2012-11-01  6:34             ` Liu, Jinsong
2012-11-02 16:49               ` Konrad Rzeszutek Wilk
2012-11-03 12:16                 ` Liu, Jinsong
2012-11-05  8:29                   ` Jan Beulich
2012-11-05 15:16                 ` Stefano Stabellini
2012-11-06  5:48                   ` Liu, Jinsong
2012-11-06  6:15                     ` Liu, Jinsong
2012-11-06 14:56                       ` Stefano Stabellini
2012-11-06 16:23                         ` Liu, Jinsong
2012-11-06 16:43                           ` Konrad Rzeszutek Wilk
2012-11-07 12:58                             ` Liu, Jinsong
2012-11-07 16:03                               ` Konrad Rzeszutek Wilk
2012-11-07 16:52                                 ` Liu, Jinsong
2012-11-08  1:08                                   ` Konrad Rzeszutek Wilk
2012-11-06 18:28 ` Shuah Khan
2012-11-07 13:06   ` Liu, Jinsong

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