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Re: [Xen-devel] Re: [PATCH 0 of 3] Patches for PCI passthrough with modi

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [PATCH 0 of 3] Patches for PCI passthrough with modified E820 (v3) - resent.
From: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>
Date: Tue, 10 May 2011 16:09:58 +0100
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx>
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References: <patchbomb.1304518670@xxxxxxxxxxxxxxxxxxxxxxx> <1304931630.26692.205.camel@xxxxxxxxxxxxxxxxxxxxxx> <20110509210140.GA29498@xxxxxxxxxxxx> <1305016202.26692.255.camel@xxxxxxxxxxxxxxxxxxxxxx> <20110510145322.GA17128@xxxxxxxxxxxx>
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On Tue, 2011-05-10 at 15:53 +0100, Konrad Rzeszutek Wilk wrote:
> > > > > This has been tested with 2.6.18 (RHEL5), 2.6.27(SLES11), 2.6.36, 
> > > > > 2.6.37, 2.6.38,
> > > > > and 2.6.39 kernels. Also tested with PV NetBSD 5.1.
> > 
> > They all saw the full amount of RAM? Since the domain builder does not
> Correct. So if the guest had 6GB passed in, roughly 3GB ended below the
> 4GB mark, and then rest - 3GB got stuck behind the 4GB.

Do you happen to know what caused that to work? I wasn't aware of any
code which moved the p2m around based on e820 in older guests (and I
can't find any right now) and I didn't think the builder itself paid any
attention to the e820 either.


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