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From: Dan Williams <dan.j.williams@intel.com>
To: Andi Kleen <ak@linux.intel.com>
Cc: "Kuppuswamy,
	Sathyanarayanan"  <sathyanarayanan.kuppuswamy@linux.intel.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Peter Zijlstra <peterz@infradead.org>,
	Andy Lutomirski <luto@kernel.org>,
	Hans de Goede <hdegoede@redhat.com>,
	Mark Gross <mgross@linux.intel.com>,
	Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	Andrii Nakryiko <andrii@kernel.org>,
	Peter H Anvin <hpa@zytor.com>,
	Dave Hansen <dave.hansen@intel.com>,
	Tony Luck <tony.luck@intel.com>,
	Kirill Shutemov <kirill.shutemov@linux.intel.com>,
	Sean Christopherson <seanjc@google.com>,
	Kuppuswamy Sathyanarayanan <knsathya@kernel.org>,
	X86 ML <x86@kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	platform-driver-x86@vger.kernel.org, bpf@vger.kernel.org,
	Netdev <netdev@vger.kernel.org>
Subject: Re: [PATCH v2 5/6] platform/x86: intel_tdx_attest: Add TDX Guest attestation interface driver
Date: Thu, 8 Jul 2021 19:04:40 -0700	[thread overview]
Message-ID: <CAPcyv4jPqv43Hh836bpDUwMYAsPHDrjUhXoJ0Ufgjbqc3h2eyQ@mail.gmail.com> (raw)
In-Reply-To: <ca608162-2a48-0816-4302-c2a5b2766a7a@linux.intel.com>

On Thu, Jul 8, 2021 at 6:44 PM Andi Kleen <ak@linux.intel.com> wrote:
>
>
> > One allocation for the life of the driver that can have its direct map
> > permissions changed rather than an allocation per-file descriptor and
> > fragmenting the direct map.
>
> The vmap() approach discussed in another mail will solve that.

Ok, not my first choice for how to handle the allocation side of that,
but not broken.

I'd still feel better if there was an actual data structure assigned
to file->private_data rather than using that 'void *' pointer directly
and casting throughout the driver.

  reply	other threads:[~2021-07-09  2:04 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-07 20:42 [PATCH v2 0/6] Add TDX Guest Support (Attestation support) Kuppuswamy Sathyanarayanan
2021-07-07 20:42 ` [PATCH v2 1/6] x86/tdx: Add TDREPORT TDX Module call support Kuppuswamy Sathyanarayanan
2021-07-08  8:16   ` Xiaoyao Li
2021-07-08 14:07     ` Kuppuswamy, Sathyanarayanan
2021-07-08 14:20       ` Hans de Goede
2021-07-08 17:06         ` Kuppuswamy, Sathyanarayanan
2021-07-07 20:42 ` [PATCH v2 2/6] x86/tdx: Add GetQuote TDX hypercall support Kuppuswamy Sathyanarayanan
2021-07-07 20:42 ` [PATCH v2 3/6] x86/tdx: Add SetupEventNotifyInterrupt " Kuppuswamy Sathyanarayanan
2021-07-07 20:42 ` [PATCH v2 4/6] x86/tdx: Add TDX Guest event notify interrupt vector support Kuppuswamy Sathyanarayanan
2021-07-07 20:42 ` [PATCH v2 5/6] platform/x86: intel_tdx_attest: Add TDX Guest attestation interface driver Kuppuswamy Sathyanarayanan
2021-07-08 22:21   ` Andy Lutomirski
2021-07-08 22:35     ` Dave Hansen
2021-07-09  0:38       ` Andi Kleen
2021-07-13  0:33         ` Kuppuswamy, Sathyanarayanan
2021-07-13  0:44           ` Dave Hansen
2021-07-08 23:34     ` Kuppuswamy, Sathyanarayanan
2021-07-08 23:36   ` Dan Williams
2021-07-08 23:57     ` Kuppuswamy, Sathyanarayanan
2021-07-09  0:20       ` Dan Williams
2021-07-09  0:36         ` Andi Kleen
2021-07-09  1:37           ` Dan Williams
2021-07-09  1:44             ` Andi Kleen
2021-07-09  2:04               ` Dan Williams [this message]
2021-07-09  2:43                 ` Kuppuswamy, Sathyanarayanan
2021-07-07 20:42 ` [PATCH v2 6/6] tools/tdx: Add a sample attestation user app Kuppuswamy Sathyanarayanan
2021-07-15  8:36   ` Mian Yousaf Kaukab
2021-07-15 15:19     ` Kuppuswamy, Sathyanarayanan
2022-03-30 22:17 [PATCH v2 0/6] Add TDX Guest Attestation support Kuppuswamy Sathyanarayanan
2022-03-30 22:18 ` [PATCH v2 5/6] platform/x86: intel_tdx_attest: Add TDX Guest attestation interface driver Kuppuswamy Sathyanarayanan
2022-04-04 10:07   ` Hans de Goede
2022-04-04 19:56     ` Sathyanarayanan Kuppuswamy
2022-04-11 14:38       ` Hans de Goede
2022-04-04 10:09   ` Hans de Goede
2022-04-04 10:11     ` Hans de Goede

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