From: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@linux.intel.com>
To: Borislav Petkov <bp@alien8.de>, Kai Huang <kai.huang@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Dave Hansen <dave.hansen@linux.intel.com>,
x86@kernel.org, Hans de Goede <hdegoede@redhat.com>,
Mark Gross <mgross@linux.intel.com>,
"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>,
linux-kernel@vger.kernel.org,
platform-driver-x86@vger.kernel.org
Subject: Re: [PATCH v3 4/4] platform/x86: intel_tdx_attest: Add TDX Guest attestation interface driver
Date: Tue, 19 Apr 2022 05:48:57 -0700 [thread overview]
Message-ID: <9198cc36-67d6-9365-5d18-f23ba4075151@linux.intel.com> (raw)
In-Reply-To: <Yl5vGIfUFp4TfTWk@zn.tnic>
On 4/19/22 1:13 AM, Borislav Petkov wrote:
> On Tue, Apr 19, 2022 at 07:47:33PM +1200, Kai Huang wrote:
>> From this perspective, I am not sure what's the value of having a dedicated
>> INTEL_TDX_ATTESTATION Kconfig. The attestation support code should be turned on
>> unconditionally when CONFIG_INTEL_TDX_GUEST is on. The code can also be just
>> under arch/x86/coco/tdx/ I guess?
>>
>> But I'll leave this to maintainers.
>
> Similar story with the unaccepted memory gunk. If it is not going to
> be used outside of encrypted guests, why are we polluting our already
> insanely humongous Kconfig space with more symbols?
>
Make sense. We can just go with CONFIG_INTEL_TDX_ATTESTATION.
Boris, this is a simple platform driver which adds IOCTL interfaces to
allow user space to get TDREPORT and TDQuote support.
So, would prefer to leave in platform/x86 or move it to arch/x86/coco/tdx/ ?
--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer
next prev parent reply other threads:[~2022-04-19 12:49 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-15 22:01 [PATCH v3 0/4] Add TDX Guest Attestation support Kuppuswamy Sathyanarayanan
2022-04-15 22:01 ` [PATCH v3 1/4] x86/tdx: Add tdx_mcall_tdreport() API support Kuppuswamy Sathyanarayanan
2022-04-19 2:29 ` Kai Huang
2022-04-19 3:37 ` Sathyanarayanan Kuppuswamy
2022-04-19 3:51 ` Kai Huang
2022-04-19 3:53 ` Sathyanarayanan Kuppuswamy
2022-04-15 22:01 ` [PATCH v3 2/4] x86/tdx: Add tdx_hcall_get_quote() " Kuppuswamy Sathyanarayanan
2022-04-19 2:59 ` Kai Huang
2022-04-19 4:04 ` Sathyanarayanan Kuppuswamy
2022-04-19 4:40 ` Kai Huang
2022-04-19 5:28 ` Sathyanarayanan Kuppuswamy
2022-04-19 7:21 ` Kai Huang
2022-04-20 3:39 ` Aubrey Li
2022-04-20 7:16 ` Sathyanarayanan Kuppuswamy
2022-04-20 8:08 ` Aubrey Li
2022-04-22 17:24 ` Isaku Yamahata
2022-04-25 3:06 ` Aubrey Li
2022-04-15 22:01 ` [PATCH v3 3/4] x86/tdx: Add TDX Guest event notify interrupt support Kuppuswamy Sathyanarayanan
2022-04-15 22:01 ` [PATCH v3 4/4] platform/x86: intel_tdx_attest: Add TDX Guest attestation interface driver Kuppuswamy Sathyanarayanan
2022-04-19 7:47 ` Kai Huang
2022-04-19 8:13 ` Borislav Petkov
2022-04-19 12:48 ` Sathyanarayanan Kuppuswamy [this message]
2022-04-20 22:00 ` Borislav Petkov
2022-04-20 22:09 ` Sathyanarayanan Kuppuswamy
2022-04-21 9:10 ` Borislav Petkov
2022-04-21 14:54 ` Sathyanarayanan Kuppuswamy
2022-04-19 8:16 ` Kai Huang
2022-04-19 14:00 ` Sathyanarayanan Kuppuswamy
2022-04-19 22:38 ` Kai Huang
2022-04-19 14:13 ` Dave Hansen
2022-04-19 14:19 ` Sathyanarayanan Kuppuswamy
2022-04-19 14:24 ` Dave Hansen
2022-04-19 14:26 ` Sathyanarayanan Kuppuswamy
2022-04-19 22:21 ` Kai Huang
2022-04-19 22:49 ` Dave Hansen
2022-04-19 23:02 ` Kai Huang
2022-04-20 1:20 ` Isaku Yamahata
2022-04-20 1:26 ` Sathyanarayanan Kuppuswamy
2022-04-21 7:04 ` Isaku Yamahata
2022-04-21 14:44 ` Sathyanarayanan Kuppuswamy
2022-04-20 23:18 ` Kai Huang
2022-04-20 23:45 ` Sathyanarayanan Kuppuswamy
2022-04-21 0:11 ` Kai Huang
2022-04-21 2:42 ` Sathyanarayanan Kuppuswamy
2022-04-21 6:57 ` Isaku Yamahata
2022-04-21 10:33 ` Kai Huang
2022-04-21 14:53 ` Sathyanarayanan Kuppuswamy
2022-04-21 16:53 ` Isaku Yamahata
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