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Re: [Xen-devel] [PATCH 4/4] hvmloader: add support to load extra ACPI tables from qemu
- To: Juergen Gross <jgross@xxxxxxxx>
- From: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
- Date: Tue, 26 Jan 2016 09:44:08 -0500
- Cc: Jun Nakajima <jun.nakajima@xxxxxxxxx>, Haozhong Zhang <haozhong.zhang@xxxxxxxxx>, Kevin Tian <kevin.tian@xxxxxxxxx>, Wei Liu <wei.liu2@xxxxxxxxxx>, Ian Campbell <ian.campbell@xxxxxxxxxx>, Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>, George Dunlap <George.Dunlap@xxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Ian Jackson <ian.jackson@xxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxx>, Jan Beulich <JBeulich@xxxxxxxx>, Xiao Guangrong <guangrong.xiao@xxxxxxxxxxxxxxx>, Keir Fraser <keir@xxxxxxx>
- Delivery-date: Tue, 26 Jan 2016 14:44:34 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
> Last year at Linux Plumbers Conference I attended a session dedicated
> to NVDIMM support. I asked the very same question and the INTEL guy
> there told me there is indeed something like a partition table meant
> to describe the layout of the memory areas and their contents.
It is described in details at pmem.io, look at Documents, see
http://pmem.io/documents/NVDIMM_Namespace_Spec.pdf see Namespaces section.
Then I would recommend you read:
http://pmem.io/documents/NVDIMM_Driver_Writers_Guide.pdf
followed by http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf
And then for dessert:
https://www.kernel.org/doc/Documentation/nvdimm/nvdimm.txt
which explains it in more technical terms.
>
> It would be nice to have a pointer to such information. Without anything
> like this it might be rather difficult to find the best solution how to
> implement NVDIMM support in Xen or any other product.
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