On 16/11/17 07:39, Manish Jaggi wrote:
On 11/14/2017 6:53 PM, Julien Grall wrote:
3. IORT for Dom0
-----------------
IORT for Dom0 is based on host iort. Few nodes could be removed or
modified.
For instance
- Host SMMU nodes should not be present as Xen should only touch it.
- platform nodes (named components) may be controlled by xen command
line.
I am not sure where does this example come from? As I said, there are
no plan to support Platform Device passthrough with ACPI. A better
example here would removing PMCG.
It came from review comments on my previous IORT SMMU hiding patch.
Andre suggested that Platform Nodes are needed.
After some brainstorming with Julien we found two problems:
1) This only covers RC nodes, but not "named components" (platform
devices), which we will need. ...
From: https://www.mail-archive.com/xen-devel@lists.xen.org/msg123434.html
I think you misunderstood my comment here... What I call "device
passthrough" is giving access to a device to a domain other than the
Hardware Domain
There are no plan for supporting platform device-passthrough on ACPI and
I don't understand why you would like to control that using the command
line.
What Andre was saying is your series was not covering the "named
components" for the Hardware Domain.
Cheers,
--
Julien Grall
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