From: "Jan Beulich" <JBeulich@suse.com>
To: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
Roberto Luongo <rluongo@ready.it>,
Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>,
Xen-devel <xen-devel@lists.xen.org>
Subject: Re: [PATCH] AMD/guest_iommu: Disable guest iommu support
Date: Mon, 06 Oct 2014 08:59:59 +0100 [thread overview]
Message-ID: <5432681F020000780003C541@mail.emea.novell.com> (raw)
In-Reply-To: <54323AC3.5050200@amd.com>
>>> On 06.10.14 at 08:46, <Suravee.Suthikulpanit@amd.com> wrote:
> The function guest_iommu_set_base() was added by Wei before my time. I
> checked the log and didn't see the evidence that this code has ever been
> used. Do you remember why he added this code to begin with, and how this
> was planned to be used?
The plan here clearly was to allow guests to see a virtual IOMMU,
and the setting of the respective base address would then be
a requirement for tool stack and/or virtual firmware to set up the
environment for the guest.
Jan
next prev parent reply other threads:[~2014-10-06 7:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-02 14:02 [PATCH] AMD/guest_iommu: Disable guest iommu support Andrew Cooper
2014-10-02 14:08 ` Andrew Cooper
2014-10-02 14:50 ` Jan Beulich
2014-10-02 15:16 ` Konrad Rzeszutek Wilk
2014-10-06 6:46 ` Suravee Suthikulpanit
2014-10-06 7:59 ` Jan Beulich [this message]
2014-10-06 9:11 ` Andrew Cooper
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