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From: "Huang, Kai" <kai.huang@intel.com>
To: "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	"nik.borisov@suse.com" <nik.borisov@suse.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: "Raj, Ashok" <ashok.raj@intel.com>,
	"Hansen, Dave" <dave.hansen@intel.com>,
	"david@redhat.com" <david@redhat.com>,
	"bagasdotme@gmail.com" <bagasdotme@gmail.com>,
	"Luck, Tony" <tony.luck@intel.com>,
	"ak@linux.intel.com" <ak@linux.intel.com>,
	"Wysocki, Rafael J" <rafael.j.wysocki@intel.com>,
	"kirill.shutemov@linux.intel.com"
	<kirill.shutemov@linux.intel.com>, "Christopherson,,
	Sean" <seanjc@google.com>, "mingo@redhat.com" <mingo@redhat.com>,
	"pbonzini@redhat.com" <pbonzini@redhat.com>,
	"tglx@linutronix.de" <tglx@linutronix.de>,
	"Yamahata, Isaku" <isaku.yamahata@intel.com>,
	"Chatre, Reinette" <reinette.chatre@intel.com>,
	"hpa@zytor.com" <hpa@zytor.com>,
	"peterz@infradead.org" <peterz@infradead.org>,
	"Shahar, Sagi" <sagis@google.com>,
	"imammedo@redhat.com" <imammedo@redhat.com>,
	"bp@alien8.de" <bp@alien8.de>, "Gao, Chao" <chao.gao@intel.com>,
	"Brown, Len" <len.brown@intel.com>,
	"sathyanarayanan.kuppuswamy@linux.intel.com" 
	<sathyanarayanan.kuppuswamy@linux.intel.com>,
	"Huang, Ying" <ying.huang@intel.com>,
	"Williams, Dan J" <dan.j.williams@intel.com>,
	"x86@kernel.org" <x86@kernel.org>
Subject: Re: [PATCH v13 00/22] TDX host kernel support
Date: Thu, 28 Sep 2023 10:19:17 +0000	[thread overview]
Message-ID: <6d71cb084b03f2bc3fc195fa76eb60c2d2bfc917.camel@intel.com> (raw)
In-Reply-To: <01c42d09-c24c-2611-ff2e-e1079b6df157@suse.com>

On Thu, 2023-09-28 at 10:48 +0300, Nikolay Borisov wrote:
> 
> On 25.08.23 г. 15:14 ч., Kai Huang wrote:
> > Intel Trusted Domain Extensions (TDX) protects guest VMs from malicious
> > host and certain physical attacks.  TDX specs are available in [1].
> > 
> > This series is the initial support to enable TDX with minimal code to
> > allow KVM to create and run TDX guests.  KVM support for TDX is being
> > developed separately[2].  A new KVM "guest_memfd()" to support private
> > memory is also being developed[3].  KVM will only support the new
> > "guest_memfd()" infrastructure for TDX.
> > 
> > Also, a few first generations of TDX hardware have an erratum[4], and
> > require additional handing.
> > 
> > This series doesn't aim to support all functionalities, and doesn't aim
> > to resolve all things perfectly.  All other optimizations will be posted
> > as follow-up once this initial TDX support is upstreamed.
> > 
> > Hi Dave/Kirill/Peter/Tony/David and all,
> > 
> > Thanks for your review on the previous versions.  Appreciate your review
> > on this version and any tag if patches look good to you.  Thanks!
> > 
> > This version was based on "Unify TDCALL/SEAMCALL and TDVMCALL assembly"
> > series, which was based on latest tip/x86/tdx, requested by Peter:
> > 
> > https://lore.kernel.org/lkml/cover.1692096753.git.kai.huang@intel.com/
> > 
> > Please also help to review that series.  Thanks!
> > 
> 
> 
> Are there any major outstanding issues preventing this to be merged? The 
> review has been somewhat quiet and most of the outstanding issues seems 
> to be nitpicks?

Hi Nikolay,

I am addressing comments from Rick, e.g., some additional handling to
S3/hibernation is needed.  I'll post the next version soon, which I hope can be
the candidate to be merged.  Thanks!

      reply	other threads:[~2023-09-28 10:19 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-08-25 12:14 Kai Huang
2023-08-25 12:14 ` [PATCH v13 01/22] x86/virt/tdx: Detect TDX during kernel boot Kai Huang
2023-09-08 15:19   ` Dave Hansen
2023-08-25 12:14 ` [PATCH v13 02/22] x86/tdx: Define TDX supported page sizes as macros Kai Huang
2023-08-25 12:14 ` [PATCH v13 03/22] x86/virt/tdx: Make INTEL_TDX_HOST depend on X86_X2APIC Kai Huang
2023-08-25 12:14 ` [PATCH v13 04/22] x86/cpu: Detect TDX partial write machine check erratum Kai Huang
2023-09-08 15:22   ` Dave Hansen
2023-09-11 12:39     ` Huang, Kai
2023-08-25 12:14 ` [PATCH v13 05/22] x86/virt/tdx: Handle SEAMCALL no entropy error in common code Kai Huang
2023-09-08 16:21   ` Dave Hansen
2023-09-11 11:41     ` Huang, Kai
2023-08-25 12:14 ` [PATCH v13 06/22] x86/virt/tdx: Add SEAMCALL error printing for module initialization Kai Huang
2023-09-07 12:45   ` Nikolay Borisov
2023-09-08 10:33     ` Huang, Kai
2023-09-08 10:38       ` Nikolay Borisov
2023-09-08 11:00         ` Huang, Kai
2023-09-08 16:31   ` Dave Hansen
2023-09-11 12:07     ` Huang, Kai
2023-08-25 12:14 ` [PATCH v13 07/22] x86/virt/tdx: Add skeleton to enable TDX on demand Kai Huang
2023-09-07 14:19   ` Nikolay Borisov
2023-09-08 10:16     ` Huang, Kai
2023-08-25 12:14 ` [PATCH v13 08/22] x86/virt/tdx: Get information about TDX module and TDX-capable memory Kai Huang
2023-08-25 12:14 ` [PATCH v13 09/22] x86/virt/tdx: Use all system memory when initializing TDX module as TDX memory Kai Huang
2023-08-25 12:14 ` [PATCH v13 10/22] x86/virt/tdx: Add placeholder to construct TDMRs to cover all TDX memory regions Kai Huang
2023-08-25 12:14 ` [PATCH v13 11/22] x86/virt/tdx: Fill out " Kai Huang
2023-08-25 12:14 ` [PATCH v13 12/22] x86/virt/tdx: Allocate and set up PAMTs for TDMRs Kai Huang
2023-08-25 12:14 ` [PATCH v13 13/22] x86/virt/tdx: Designate reserved areas for all TDMRs Kai Huang
2023-08-25 12:14 ` [PATCH v13 14/22] x86/virt/tdx: Configure TDX module with the TDMRs and global KeyID Kai Huang
2023-08-25 12:14 ` [PATCH v13 15/22] x86/virt/tdx: Configure global KeyID on all packages Kai Huang
2023-08-25 12:14 ` [PATCH v13 16/22] x86/virt/tdx: Initialize all TDMRs Kai Huang
2023-08-25 12:14 ` [PATCH v13 17/22] x86/kexec: Flush cache of TDX private memory Kai Huang
2023-09-15 17:43   ` Edgecombe, Rick P
2023-09-15 17:50     ` Dave Hansen
2023-09-18 12:08       ` Huang, Kai
2023-09-18 15:44         ` Dave Hansen
2023-09-18 22:14           ` Huang, Kai
2023-08-25 12:14 ` [PATCH v13 18/22] x86/virt/tdx: Keep TDMRs when module initialization is successful Kai Huang
2023-09-15 23:10   ` Edgecombe, Rick P
2023-09-15 23:10   ` Edgecombe, Rick P
2023-08-25 12:14 ` [PATCH v13 19/22] x86/virt/tdx: Improve readibility of module initialization error handling Kai Huang
2023-09-15 23:14   ` Edgecombe, Rick P
2023-08-25 12:14 ` [PATCH v13 20/22] x86/kexec(): Reset TDX private memory on platforms with TDX erratum Kai Huang
2023-09-14 21:36   ` Edgecombe, Rick P
2023-09-15 11:42     ` Huang, Kai
2023-09-15 16:42       ` Edgecombe, Rick P
2023-09-18  4:36         ` Huang, Kai
2023-08-25 12:14 ` [PATCH v13 21/22] x86/mce: Improve error log of kernel space TDX #MC due to erratum Kai Huang
2023-08-25 12:14 ` [PATCH v13 22/22] Documentation/x86: Add documentation for TDX host support Kai Huang
2023-09-11 11:32   ` Nikolay Borisov
2023-09-13 11:27     ` Huang, Kai
2023-09-28  7:48 ` [PATCH v13 00/22] TDX host kernel support Nikolay Borisov
2023-09-28 10:19   ` Huang, Kai [this message]

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