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From: Sathyanarayanan Kuppuswamy  <sathyanarayanan.kuppuswamy@linux.intel.com>
To: Kai Huang <kai.huang@intel.com>,
	Dave Hansen <dave.hansen@intel.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	x86@kernel.org
Cc: "H . Peter Anvin" <hpa@zytor.com>,
	"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
	Tony Luck <tony.luck@intel.com>, Andi Kleen <ak@linux.intel.com>,
	Wander Lairson Costa <wander@redhat.com>,
	Isaku Yamahata <isaku.yamahata@gmail.com>,
	marcelo.cerri@canonical.com, tim.gardner@canonical.com,
	khalid.elmously@canonical.com, philip.cox@canonical.com,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH v8 1/5] x86/tdx: Add TDX Guest attestation interface driver
Date: Wed, 6 Jul 2022 15:27:39 -0700	[thread overview]
Message-ID: <e92c570e-29c0-e6d1-88e8-cb6344c01859@linux.intel.com> (raw)
In-Reply-To: <932869b757b384426ada376cd9791697353c2247.camel@intel.com>



On 7/5/22 3:31 PM, Kai Huang wrote:
> On Tue, 2022-07-05 at 14:21 -0700, Sathyanarayanan Kuppuswamy wrote:
>> SGX is a related feature. It also uses IOCTL approach for enclave provisioning.
>>
>> arch/x86/kernel/cpu/sgx/ioctl.c
> 
> SGX isn't a good example here.  The IOCTLs are used to create enclaves, but not
> for attestation.  SGX attestation relies on enclave itself to get/verify the
> report, etc, so has no interaction with the kernel.

If you are looking for an attestation specific example, you can only check the AMD
code.

https://patchwork.kernel.org/project/linux-mm/patch/20220307213356.2797205-44-brijesh.singh@amd.com/

Also, sev_get_attestation_report() in arch/x86/kvm/svm/sev.c also implements attestation
IOCTL specific to KVM.

-- 
Sathyanarayanan Kuppuswamy
Linux Kernel Developer

  reply	other threads:[~2022-07-06 22:27 UTC|newest]

Thread overview: 77+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-09  2:52 [PATCH v8 0/5] Add TDX Guest Attestation support Kuppuswamy Sathyanarayanan
2022-06-09  2:52 ` [PATCH v8 1/5] x86/tdx: Add TDX Guest attestation interface driver Kuppuswamy Sathyanarayanan
2022-06-24 16:51   ` Dave Hansen
2022-06-27 14:50     ` Sathyanarayanan Kuppuswamy
2022-06-27 17:24       ` Dave Hansen
2022-06-30 23:50         ` Sathyanarayanan Kuppuswamy
2022-07-05 12:07           ` Kai Huang
2022-07-05 18:45             ` Sathyanarayanan Kuppuswamy
2022-07-05 18:52               ` Dave Hansen
2022-07-05 21:21                 ` Sathyanarayanan Kuppuswamy
2022-07-05 22:31                   ` Kai Huang
2022-07-06 22:27                     ` Sathyanarayanan Kuppuswamy [this message]
2022-07-06 22:59                       ` Kai Huang
2022-07-18 22:52                       ` Sathyanarayanan Kuppuswamy
2022-06-09  2:52 ` [PATCH v8 2/5] x86/tdx: Add TDX Guest event notify interrupt support Kuppuswamy Sathyanarayanan
2022-06-20 12:33   ` Kai Huang
2022-06-20 15:44     ` Sathyanarayanan Kuppuswamy
2022-06-23  9:46       ` Kai Huang
2022-06-23 10:24       ` Kai Huang
2022-06-24 22:23       ` Sathyanarayanan Kuppuswamy
2022-06-24 23:41       ` Nakajima, Jun
2022-06-25  3:35         ` Yao, Jiewen
2022-06-27 11:21           ` Kai Huang
2022-06-27 14:56             ` Sathyanarayanan Kuppuswamy
2022-07-14  0:46             ` Sathyanarayanan Kuppuswamy
2022-07-14 10:42               ` Kai Huang
2022-07-14 20:55                 ` Sathyanarayanan Kuppuswamy
2022-07-14 23:58                   ` Kai Huang
2022-06-09  2:52 ` [PATCH v8 3/5] x86/mm: Make tdx_enc_status_changed() vmalloc address compatible Kuppuswamy Sathyanarayanan
2022-06-09  2:52 ` [PATCH v8 4/5] x86/mm: Add noalias variants of set_memory_*crypted() functions Kuppuswamy Sathyanarayanan
2022-06-24 13:19   ` Dave Hansen
2022-06-27 15:12     ` Kirill A. Shutemov
2022-06-27 18:24       ` Dave Hansen
2022-06-28  1:15         ` Kai Huang
2022-07-05 15:29           ` Kirill A. Shutemov
2022-07-18 14:22             ` Sathyanarayanan Kuppuswamy
2022-07-19 16:13               ` Kirill A. Shutemov
2022-07-19 17:10                 ` Sathyanarayanan Kuppuswamy
2022-07-19 21:55                   ` Kirill A. Shutemov
2022-07-20 14:56                     ` Sathyanarayanan Kuppuswamy
2022-07-20 16:17                       ` Kirill A. Shutemov
2022-07-20 16:58                         ` Sathyanarayanan Kuppuswamy
2022-06-09  2:52 ` [PATCH v8 5/5] x86/tdx: Add Quote generation support Kuppuswamy Sathyanarayanan
2022-06-14 12:30   ` Wander Lairson Costa
2022-06-14 12:58     ` Sathyanarayanan Kuppuswamy
2022-07-21 16:08   ` Dave Hansen
2022-07-21 16:42     ` Sathyanarayanan Kuppuswamy
2022-07-21 16:49       ` Dave Hansen
2022-07-21 16:54         ` Sathyanarayanan Kuppuswamy
2022-07-21 17:02           ` Dave Hansen
2022-07-21 17:16             ` Sathyanarayanan Kuppuswamy
2022-07-21 17:19               ` Dave Hansen
2022-07-21 18:31                 ` Sathyanarayanan Kuppuswamy
2022-07-21 18:42                 ` Isaku Yamahata
2022-07-21 18:52                   ` Dave Hansen
2022-07-21 18:57                     ` Sathyanarayanan Kuppuswamy
2022-07-21 19:23                       ` Dave Hansen
2022-07-21 22:08                         ` Sathyanarayanan Kuppuswamy
2022-07-21 23:16                         ` Kai Huang
2022-07-21 23:32     ` Kai Huang
2022-07-22  0:27   ` Dave Hansen
2022-07-22 19:05     ` Isaku Yamahata
2022-07-22 19:13       ` Dave Hansen
2022-07-22 21:18         ` Sathyanarayanan Kuppuswamy
2022-07-22 21:24           ` Dave Hansen
2022-07-25 20:19           ` Nakajima, Jun
2022-07-25 20:23             ` Dave Hansen
2022-07-25 21:56               ` Nakajima, Jun
2022-07-25 22:06                 ` Sathyanarayanan Kuppuswamy
2022-08-09  6:20               ` Guorui Yu
2022-11-21  2:04                 ` Guorui Yu
2022-11-21  2:26                   ` Dave Hansen
2023-01-07  0:58                     ` Erdem Aktas
2022-07-25 11:05         ` Kai Huang
2022-06-24 18:24 ` [PATCH v8 0/5] Add TDX Guest Attestation support Dave Hansen
2022-06-27 14:51   ` Sathyanarayanan Kuppuswamy
2022-06-27 18:51     ` Dave Hansen

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