From: Avi Kivity <avi@redhat.com>
To: Cam Macdonell <cam@cs.ualberta.ca>
Cc: Chris Wright <chrisw@redhat.com>,
"qemu-devel@nongnu.org Developers" <qemu-devel@nongnu.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [Qemu-devel] Re: ACPI error when mapping a 2GB BAR w/ 4GB of RAM
Date: Sun, 19 Sep 2010 19:08:18 +0200 [thread overview]
Message-ID: <4C964382.9000602@redhat.com> (raw)
In-Reply-To: <AANLkTikr7of6M142qTDkUx=2z-SUHWqOZd6hnC+BnEG4@mail.gmail.com>
On 09/17/2010 11:45 PM, Cam Macdonell wrote:
> > It seems most likely...< 2GB also means<= 1GB (which would fit in
> > the hole). Although, I have to admit, I'm not sure how seabios handles
> > the hole nowadays.
> >
> > What about 2GB with 32bit BAR?
>
> The bios seems to ignore it and the guest can't map it as it cannot
> find an alignment for it. Seems strange since with 1GB of RAM and 2GB
> BAR, everything should map below 4GB.
>
There are only two possible locations, 0-2GB and 2-4GB. The first
clashes with RAM, the second clashes with the bios and fixed-function
devices.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2010-09-19 17:08 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-17 20:00 [Qemu-devel] ACPI error when mapping a 2GB BAR w/ 4GB of RAM Cam Macdonell
2010-09-17 20:04 ` [Qemu-devel] " Chris Wright
2010-09-17 20:52 ` Cam Macdonell
2010-09-17 20:53 ` Cam Macdonell
2010-09-17 21:15 ` Chris Wright
2010-09-17 21:45 ` Cam Macdonell
2010-09-19 17:08 ` Avi Kivity [this message]
2010-09-19 17:15 ` [Qemu-devel] " Avi Kivity
2010-09-22 1:19 ` Robert Hancock
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