From: "Huang, Kai" <kai.huang@intel.com>
To: "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"ak@linux.intel.com" <ak@linux.intel.com>
Cc: "Hansen, Dave" <dave.hansen@intel.com>,
"Luck, Tony" <tony.luck@intel.com>,
"bagasdotme@gmail.com" <bagasdotme@gmail.com>,
"Wysocki, Rafael J" <rafael.j.wysocki@intel.com>,
"kirill.shutemov@linux.intel.com"
<kirill.shutemov@linux.intel.com>, "Christopherson,,
Sean" <seanjc@google.com>,
"Chatre, Reinette" <reinette.chatre@intel.com>,
"pbonzini@redhat.com" <pbonzini@redhat.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"Yamahata, Isaku" <isaku.yamahata@intel.com>,
"peterz@infradead.org" <peterz@infradead.org>,
"Shahar, Sagi" <sagis@google.com>,
"imammedo@redhat.com" <imammedo@redhat.com>,
"Gao, Chao" <chao.gao@intel.com>,
"Brown, Len" <len.brown@intel.com>,
"sathyanarayanan.kuppuswamy@linux.intel.com"
<sathyanarayanan.kuppuswamy@linux.intel.com>,
"Williams, Dan J" <dan.j.williams@intel.com>
Subject: Re: [PATCH v6 21/21] Documentation/x86: Add documentation for TDX host support
Date: Fri, 28 Oct 2022 02:31:11 +0000 [thread overview]
Message-ID: <4c382e9983d577d4895257a606e5d03876cc82ff.camel@intel.com> (raw)
In-Reply-To: <b210d6f3-868c-9711-7703-1363dcd9269f@linux.intel.com>
On Thu, 2022-10-27 at 05:38 -0700, Andi Kleen wrote:
> > +The current implementation doesn't explicitly prevent adding any non-TDX
> > +memory to system-wide memory pool, but depends on the machine owner to
> > +make sure such operation won't happen. For example, the machine owner
> > +should never plug any NVDIMM or CXL memory to the machine, or use kmem
> > +driver to hot-add any to the core-mm.
>
>
> I assume that will be fixed in some form, so doesn't need to be in the
> documentation.
Based on we need to handle this in some way so yes this will go away.
>
>
> > +
> > +To keep things simple, this series doesn't handle memory hotplug at all,
> > +but depends on the machine owner to not do any memory hotplug operation.
> > +For example, the machine owner should not plug any NVDIMM or CXL memory
> > +into the machine, or use kmem driver to plug NVDIMM or CXL memory to the
> > +core-mm.
>
>
> Dito. Documentation/* shouldn't contain temporary things like a commit log.
Oops. I just copied from some commit log. Thanks for catching!
next prev parent reply other threads:[~2022-10-28 2:31 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-10-26 23:15 [PATCH v6 00/21] TDX host kernel support Kai Huang
2022-10-26 23:16 ` [PATCH v6 01/21] x86/tdx: Use enum to define page level of TDX supported page sizes Kai Huang
2022-10-27 7:08 ` Xiaoyao Li
2022-10-27 8:42 ` Huang, Kai
2022-10-27 13:51 ` Kirill A. Shutemov
2022-10-28 0:47 ` Huang, Kai
2022-10-27 22:28 ` Isaku Yamahata
2022-10-27 15:27 ` Dave Hansen
2022-10-28 0:10 ` Huang, Kai
2022-10-26 23:16 ` [PATCH v6 02/21] x86/virt/tdx: Detect TDX during kernel boot Kai Huang
2022-10-26 23:16 ` [PATCH v6 03/21] x86/virt/tdx: Disable TDX if X2APIC is not enabled Kai Huang
2022-10-26 23:16 ` [PATCH v6 04/21] x86/virt/tdx: Use all boot-time system memory as TDX memory Kai Huang
2022-10-26 23:16 ` [PATCH v6 05/21] x86/virt/tdx: Add skeleton to initialize TDX on demand Kai Huang
2022-10-26 23:16 ` [PATCH v6 06/21] x86/virt/tdx: Implement functions to make SEAMCALL Kai Huang
2022-10-26 23:16 ` [PATCH v6 07/21] x86/virt/tdx: Shut down TDX module in case of error Kai Huang
2022-10-26 23:16 ` [PATCH v6 08/21] x86/virt/tdx: Do TDX module global initialization Kai Huang
2022-10-26 23:16 ` [PATCH v6 09/21] x86/virt/tdx: Do logical-cpu scope TDX module initialization Kai Huang
2022-10-26 23:16 ` [PATCH v6 10/21] x86/virt/tdx: Get information about TDX module and TDX-capable memory Kai Huang
2022-10-26 23:16 ` [PATCH v6 11/21] x86/virt/tdx: Sanity check all TDX memory ranges are convertible memory Kai Huang
2022-10-26 23:16 ` [PATCH v6 12/21] x86/virt/tdx: Add placeholder to construct TDMRs to cover all TDX memory regions Kai Huang
2022-10-27 15:31 ` Andi Kleen
2022-10-28 2:21 ` Huang, Kai
2022-11-03 8:55 ` Huang, Kai
2022-11-03 15:05 ` Dave Hansen
2022-11-03 22:07 ` Huang, Kai
2022-10-26 23:16 ` [PATCH v6 13/21] x86/virt/tdx: Create " Kai Huang
2022-10-26 23:16 ` [PATCH v6 14/21] x86/virt/tdx: Allocate and set up PAMTs for TDMRs Kai Huang
2022-10-26 23:16 ` [PATCH v6 15/21] x86/virt/tdx: Set up reserved areas for all TDMRs Kai Huang
2022-10-26 23:16 ` [PATCH v6 16/21] x86/virt/tdx: Reserve TDX module global KeyID Kai Huang
2022-10-27 12:40 ` Andi Kleen
2022-10-28 1:24 ` Huang, Kai
2022-10-26 23:16 ` [PATCH v6 17/21] x86/virt/tdx: Configure TDX module with TDMRs and " Kai Huang
2022-10-26 23:16 ` [PATCH v6 18/21] x86/virt/tdx: Configure global KeyID on all packages Kai Huang
2022-10-27 12:35 ` Andi Kleen
2022-10-28 1:07 ` Huang, Kai
2022-10-26 23:16 ` [PATCH v6 19/21] x86/virt/tdx: Initialize all TDMRs Kai Huang
2022-10-27 12:30 ` Andi Kleen
2022-10-28 1:08 ` Huang, Kai
2022-10-26 23:16 ` [PATCH v6 20/21] x86/virt/tdx: Flush cache in kexec() when TDX is enabled Kai Huang
2022-10-26 23:16 ` [PATCH v6 21/21] Documentation/x86: Add documentation for TDX host support Kai Huang
2022-10-27 12:38 ` Andi Kleen
2022-10-28 2:31 ` Huang, Kai [this message]
2022-10-28 12:52 ` Bagas Sanjaya
2022-10-28 14:16 ` Dave Hansen
2022-10-26 23:26 ` [PATCH v6 00/21] TDX host kernel support Dave Hansen
2022-10-26 23:51 ` Huang, Kai
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