From mboxrd@z Thu Jan 1 00:00:00 1970 From: Haozhong Zhang Subject: Re: [PATCH 4/4] hvmloader: add support to load extra ACPI tables from qemu Date: Tue, 26 Jan 2016 23:57:48 +0800 Message-ID: <20160126155748.GD6293@hz-desktop.sh.intel.com> References: <56A0AA8A02000078000C977D@prv-mh.provo.novell.com> <56A0A09A.2050101@linux.intel.com> <56A0C02A02000078000C9823@prv-mh.provo.novell.com> <20160121140103.GB6362@hz-desktop.sh.intel.com> <56A0FEA102000078000C9A44@prv-mh.provo.novell.com> <56A7785802000078000CB0CD@prv-mh.provo.novell.com> <56A76C74.5010506@suse.com> <20160126144408.GE19666@char.us.oracle.com> <56A7A0DD02000078000CB26D@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <56A7A0DD02000078000CB26D@prv-mh.provo.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Jan Beulich Cc: Juergen Gross , Kevin Tian , Wei Liu , Ian Campbell , George Dunlap , Andrew Cooper , Stefano Stabellini , Ian Jackson , "xen-devel@lists.xen.org" , Jun Nakajima , Xiao Guangrong , Keir Fraser List-Id: xen-devel@lists.xenproject.org On 01/26/16 08:37, Jan Beulich wrote: > >>> On 26.01.16 at 15:44, wrote: > >> 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. > > Well, that's about how PMEM and PBLK ranges get marked, but not > about how use of the space inside a PMEM range is coordinated. > How a NVDIMM is partitioned into pmem and pblk is described by ACPI NFIT table. Namespace to pmem is something like partition table to disk. Haozhong