From: Roger Pau Monne <roger.pau@citrix.com>
To: David Vrabel <david.vrabel@citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Ian Campbell <Ian.Campbell@citrix.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
"Tim (Xen.org)" <tim@xen.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Stefano Stabellini <Stefano.Stabellini@eu.citrix.com>
Subject: Re: [Xen-devel] [PATCH WIP 2/6] xen/arm: Introduce xen_guest_init
Date: Thu, 12 Jul 2012 12:49:08 +0100 [thread overview]
Message-ID: <4FFEB9B4.2040307@citrix.com> (raw)
In-Reply-To: <4FFAF3E3.7070306@citrix.com>
David Vrabel wrote:
> On 09/07/12 15:45, Konrad Rzeszutek Wilk wrote:
>> On Fri, Jun 22, 2012 at 05:14:41PM +0100, Stefano Stabellini wrote:
>>> We used to rely on a core_initcall to initialize Xen on ARM, however
>>> core_initcalls are actually called after early consoles are initialized.
>>> That means that hvc_xen.c is going to be initialized before Xen.
>>>
>>> Given the lack of a better alternative, just call a new Xen
>>> initialization function (xen_guest_init) from xen_cons_init.
>>>
>>> xen_guest_init has to be arch independant, so write both an ARM and an
>>> x86 implementation. The x86 implementation is currently empty because we
>>> can be sure that xen_hvm_guest_init is called early enough.
>>>
>>> Probably we can get rid of this as soon as we have better DT support.
>> What is DT?
>
> Device Tree. It's a binary describing the hardware and some system
> configuration that is passed to the kernel by the boot loader or (in
> this case) the hypervisor. Vaguely analogous to ACPI except it's not
> crazy ;).
>
> We really should get the device tree bindings sorted out before
> accepting any kernel side patches. I think we can do this even if Xen's
> device tree support is incomplete.
Will this be passed from the hypervisor to the linux kernel using a
specific mechanism (different than the native one)?
next prev parent reply other threads:[~2012-07-12 11:49 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-22 16:13 [PATCH WIP 0/6] xen/arm: PV console support Stefano Stabellini
2012-06-22 16:14 ` [PATCH WIP 1/6] xen/arm: fix the shared_info and vcpu_info structs Stefano Stabellini
2012-06-22 16:14 ` [PATCH WIP 2/6] xen/arm: Introduce xen_guest_init Stefano Stabellini
2012-07-09 14:45 ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-07-09 15:08 ` David Vrabel
2012-07-12 11:49 ` Roger Pau Monne [this message]
2012-07-12 12:04 ` David Vrabel
2012-07-12 17:50 ` Stefano Stabellini
2012-07-12 18:00 ` Ian Campbell
2012-07-13 16:38 ` Stefano Stabellini
2012-06-22 16:14 ` [PATCH WIP 3/6] xen/arm: get privilege status Stefano Stabellini
2012-07-09 14:41 ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-07-12 17:43 ` Stefano Stabellini
2012-06-22 16:14 ` [PATCH WIP 4/6] xen/arm: implement hvm_op Stefano Stabellini
2012-06-22 16:14 ` [PATCH WIP 5/6] xen: fix unmask_evtchn for HVM guests Stefano Stabellini
2012-06-22 16:14 ` [PATCH WIP 6/6] xen/arm: enable evtchn irqs Stefano Stabellini
2012-07-09 14:40 ` Konrad Rzeszutek Wilk
2012-07-13 17:14 ` Stefano Stabellini
2012-07-16 14:57 ` Konrad Rzeszutek Wilk
2012-07-18 16:51 ` Stefano Stabellini
2012-07-19 23:30 ` Konrad Rzeszutek Wilk
2012-07-20 11:09 ` Stefano Stabellini
2012-07-20 14:36 ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-07-20 15:23 ` Stefano Stabellini
2012-07-25 18:43 ` Konrad Rzeszutek Wilk
2012-07-26 13:53 ` Stefano Stabellini
2012-06-22 16:26 ` [PATCH] xen/events: fix unmask_evtchn for PV on HVM guests Stefano Stabellini
2012-07-09 14:19 ` [Xen-devel] " Konrad Rzeszutek Wilk
2012-07-13 17:48 ` Stefano Stabellini
2012-07-16 15:14 ` Konrad Rzeszutek Wilk
2012-07-18 18:17 ` Stefano Stabellini
2012-08-22 11:20 ` Stefano Stabellini
2012-08-22 14:03 ` Konrad Rzeszutek Wilk
2012-08-22 15:01 ` Stefano Stabellini
2012-07-09 14:41 ` [PATCH WIP 1/6] xen/arm: fix the shared_info and vcpu_info structs Konrad Rzeszutek Wilk
2012-07-13 16:48 ` Stefano Stabellini
2012-07-13 17:08 ` Ian Campbell
2012-07-16 14:57 ` Konrad Rzeszutek Wilk
2012-07-18 16:46 ` Stefano Stabellini
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