From: Keir Fraser <keir@xensource.com>
To: Guillaume Thouvenin <guillaume.thouvenin@ext.bull.net>,
Ian Campbell <Ian.Campbell@xensource.com>
Cc: Xen devel ML <xen-devel@lists.xensource.com>
Subject: Re: [RFC] change provided physical RAM map to add EBDA
Date: Thu, 15 Mar 2007 10:55:26 +0000 [thread overview]
Message-ID: <C21ED69E.B893%keir@xensource.com> (raw)
In-Reply-To: <20070315084501.GA4830@bull.net>
On 15/3/07 08:45, "Guillaume Thouvenin" <guillaume.thouvenin@ext.bull.net>
wrote:
> My idea is to map the real memory region that contains EBDA to dom0. So
> dom0 will see the real machine memory region under 640Ko (0xa0000) in is
> own physical map.
You're creating difficulties where there are none: dom0 already has a
mapping of all memory below 1MB. Just use isa_bus_to_virt(0x40e).
-- Keir
next prev parent reply other threads:[~2007-03-15 10:55 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-14 11:02 [RFC] change provided physical RAM map to add EBDA Guillaume Thouvenin
2007-03-14 12:25 ` Ian Campbell
2007-03-15 8:45 ` Guillaume Thouvenin
2007-03-15 9:24 ` Ian Campbell
2007-03-15 10:55 ` Keir Fraser [this message]
2007-03-16 7:50 ` Guillaume Thouvenin
2007-03-15 11:57 ` Alan Cox
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