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From: Sinan Kaya <okaya@kernel.org>
To: sathyanarayanan.kuppuswamy@linux.intel.com, bhelgaas@google.com,
	joro@8bytes.org, dwmw2@infradead.org
Cc: linux-pci@vger.kernel.org, iommu@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org, Ashok Raj <ashok.raj@intel.com>,
	Jacob Pan <jacob.jun.pan@linux.intel.com>,
	Keith Busch <keith.busch@intel.com>
Subject: Re: [PATCH v1 1/2] PCI: ATS: Add function to check ATS page aligned request status.
Date: Thu, 7 Feb 2019 20:58:39 -0500	[thread overview]
Message-ID: <32ec3293-28ea-8f0f-f801-0370b4cf0453@kernel.org> (raw)
In-Reply-To: <a5a29eee-2e33-ba0c-67a6-69983fd0796d@linux.intel.com>


On 2/7/2019 5:16 PM, sathyanarayanan kuppuswamy wrote:
>> If I remember this right, aligned request is only supported on ATS v1.1
>> but not supported on v1.0.
> Its added in v1.1.

This means that you should probably have some kind of version check
here.

  reply	other threads:[~2019-02-08  1:58 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-07 18:41 [PATCH v1 0/2] Add page alignment check in Intel IOMMU sathyanarayanan.kuppuswamy
2019-02-07 18:41 ` [PATCH v1 1/2] PCI: ATS: Add function to check ATS page aligned request status sathyanarayanan.kuppuswamy
2019-02-07 20:07   ` Bjorn Helgaas
2019-02-07 20:39     ` sathyanarayanan kuppuswamy
2019-02-07 20:38   ` Sinan Kaya
2019-02-07 22:16     ` sathyanarayanan kuppuswamy
2019-02-08  1:58       ` Sinan Kaya [this message]
2019-02-09  1:02         ` sathyanarayanan kuppuswamy
2019-02-09  4:49           ` Sinan Kaya
2019-02-11 19:15             ` Raj, Ashok
2019-02-11 19:24               ` sathyanarayanan kuppuswamy
2019-02-11 20:35               ` Sinan Kaya
2019-02-07 18:41 ` [PATCH v1 2/2] iommu/vt-d: Enable ATS only if the device uses page aligned address sathyanarayanan.kuppuswamy

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