From: Dionna Amalie Glaze <dionnaglaze@google.com>
To: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: 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, Shuah Khan <shuah@kernel.org>,
Jonathan Corbet <corbet@lwn.net>,
"H . Peter Anvin" <hpa@zytor.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
Tony Luck <tony.luck@intel.com>,
Wander Lairson Costa <wander@redhat.com>,
Erdem Aktas <erdemaktas@google.com>,
Chong Cai <chongc@google.com>, Qinkun Bao <qinkun@apache.org>,
Guorui Yu <GuoRui.Yu@linux.alibaba.com>,
Du Fan <fan.du@intel.com>,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-doc@vger.kernel.org
Subject: Re: [PATCH v2 2/3] virt: tdx-guest: Add Quote generation support
Date: Thu, 27 Apr 2023 18:29:07 -0700 [thread overview]
Message-ID: <CAAH4kHbRmeK3SuEeryWnaU_daFcqPF==gU0H=fneJ2q9OmdG0g@mail.gmail.com> (raw)
In-Reply-To: <35a7839d-b970-fbe6-3dff-7774255dda62@linux.intel.com>
>
> How about the following?
>
> Although this method reserves a fixed chunk of memory for GetQuote
> requests, such one-time allocation is preferable to the alternative
> choice of repeatedly allocating/freeing the shared buffer in the
> TDX_CMD_GET_QUOTE IOCTL handler, which will damage the direct map (because
> the sharing/unsharing process modifies the direct map). This allocation
> model is similar to that used by the AMD SEV guest driver.
>
>
Yes, this is clear, thank you.
--
-Dionna Glaze, PhD (she/her)
next prev parent reply other threads:[~2023-04-28 1:29 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-13 3:41 [PATCH v2 0/3] TDX Guest Quote generation support Kuppuswamy Sathyanarayanan
2023-04-13 3:41 ` [PATCH v2 1/3] x86/tdx: Add TDX Guest event notify interrupt support Kuppuswamy Sathyanarayanan
2023-04-14 13:34 ` Huang, Kai
2023-04-25 23:47 ` Sathyanarayanan Kuppuswamy
2023-04-26 1:59 ` Huang, Kai
2023-04-26 6:07 ` Sathyanarayanan Kuppuswamy
2023-04-28 13:50 ` Huang, Kai
2023-04-13 3:41 ` [PATCH v2 2/3] virt: tdx-guest: Add Quote generation support Kuppuswamy Sathyanarayanan
2023-04-26 15:40 ` Dionna Amalie Glaze
2023-04-27 18:27 ` Sathyanarayanan Kuppuswamy
2023-04-28 1:29 ` Dionna Amalie Glaze [this message]
2023-04-28 13:49 ` Huang, Kai
2023-05-01 6:03 ` Sathyanarayanan Kuppuswamy
2023-05-01 12:48 ` Huang, Kai
2023-05-04 7:12 ` Sathyanarayanan Kuppuswamy
2023-05-04 12:00 ` Huang, Kai
2023-05-02 22:27 ` Chong Cai
2023-04-13 3:41 ` [PATCH v2 3/3] selftests/tdx: Test GetQuote TDX attestation feature Kuppuswamy Sathyanarayanan
2023-04-26 15:47 ` Dionna Amalie Glaze
2023-04-27 19:10 ` Sathyanarayanan Kuppuswamy
2023-04-27 19:56 ` Dave Hansen
2023-04-27 19:53 ` Dave Hansen
2023-05-10 0:10 ` [PATCH v2 0/3] TDX Guest Quote generation support Erdem Aktas
2023-05-10 0:14 ` Sathyanarayanan Kuppuswamy
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