From: Ian Campbell <ian.campbell@citrix.com>
To: Oleksandr Dmytryshyn <oleksandr.dmytryshyn@globallogic.com>
Cc: Keir Fraser <keir@xen.org>,
Ian Jackson <ian.jackson@eu.citrix.com>, Tim Deegan <tim@xen.org>,
xen-devel <xen-devel@lists.xen.org>,
Stefano Stabellini <stefano.stabellini@citrix.com>,
Jan Beulich <jbeulich@suse.com>
Subject: Re: Question about mapping between domains
Date: Tue, 14 Jul 2015 16:49:32 +0100 [thread overview]
Message-ID: <1436888972.11153.4.camel@citrix.com> (raw)
In-Reply-To: <CAN58jitB6NFghT7kQ7QbuZydQwswtzAVzc5_FM3xj2i9BZgjXA@mail.gmail.com>
On Tue, 2015-07-14 at 18:31 +0300, Oleksandr Dmytryshyn wrote:
> > There is an additional quirk for a 1:1 mapped dom0 which is that we
> > don't actually decrease reservation when ballooning, but keep the 1:1
> > mfn in anticipation of ballooning it back in later.
> Could You please tell me a bit more information about this quirk. How this quirk
> can be enabled?
It's enabled by the same dom0_11_mapping which the dom0 domain_builder
uses, look for uses of is_domain_direct_mapped, in particular the ones
in xen/common/memory.c.
Ian.
next prev parent reply other threads:[~2015-07-14 15:49 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-09 13:31 Question about mapping between domains Oleksandr Dmytryshyn
2015-07-13 9:04 ` Ian Campbell
2015-07-14 15:31 ` Oleksandr Dmytryshyn
2015-07-14 15:41 ` Oleksandr Dmytryshyn
2015-07-14 15:50 ` Ian Campbell
2015-07-15 8:28 ` Oleksandr Dmytryshyn
2015-07-15 11:51 ` Stefano Stabellini
2015-07-15 12:00 ` Ian Campbell
2015-07-14 15:49 ` Ian Campbell [this message]
2015-07-17 7:43 ` Oleksandr Dmytryshyn
2015-07-17 8:59 ` Ian Campbell
2015-07-22 12:07 ` Oleksandr Dmytryshyn
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