From: Jeremy Fitzhardinge <Jeremy.Fitzhardinge@citrix.com>
To: Jan Beulich <JBeulich@novell.com>
Cc: "ketuzsezr@darnok.org" <ketuzsezr@darnok.org>,
"pjones@redhat.com" <pjones@redhat.com>,
Martin Wilck <Martin.Wilck@fujitsu-siemens.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] iSCSI/iBFT: use proper address translation
Date: Thu, 01 Oct 2009 14:46:52 -0700 [thread overview]
Message-ID: <4AC5234C.5030409@citrix.com> (raw)
In-Reply-To: <4AC47DED0200007800017743@vpn.id2.novell.com>
On 10/01/09 01:01, Jan Beulich wrote:
> In virtual environments (namely, Xen Dom0) virt <-> phys and
> virt <-> isa-bus translations cannot be freely interchanged. When
> looking at memory below 1M, the latter translations should always
> be used.
>
Do you have a different definition for isa_virt_to_bus in your kernel?
As far as I can see it is defined to be the same as virt_to_phys. Also,
the ISA memory is identity mapped into the domain's physical mapping
space, so it should be directly accessible without any problems.
J
next prev parent reply other threads:[~2009-10-01 21:56 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-01 8:01 [PATCH] iSCSI/iBFT: use proper address translation Jan Beulich
2009-10-01 13:35 ` Peter Jones
2009-10-01 21:46 ` Jeremy Fitzhardinge [this message]
2009-10-02 1:28 ` Konrad Rzeszutek
2009-10-02 7:25 ` Jan Beulich
2009-10-02 14:32 ` Peter Jones
2009-10-02 14:58 ` Konrad Rzeszutek Wilk
2009-10-02 7:23 ` Jan Beulich
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