From: Keith Busch <kbusch@kernel.org>
To: Jon Derrick <jonathan.derrick@intel.com>
Cc: linux-pci@vger.kernel.org, iommu@lists.linux-foundation.org,
Bjorn Helgaas <helgaas@kernel.org>,
David Woodhouse <dwmw2@infradead.org>,
Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v5 6/7] PCI: vmd: Stop overriding dma_map_ops
Date: Thu, 23 Jan 2020 01:56:14 +0900 [thread overview]
Message-ID: <20200122165614.GA6571@redsun51.ssa.fujisawa.hgst.com> (raw)
In-Reply-To: <1579613871-301529-7-git-send-email-jonathan.derrick@intel.com>
On Tue, Jan 21, 2020 at 06:37:50AM -0700, Jon Derrick wrote:
> Devices on the VMD domain use the VMD endpoint's requester ID and have
> been relying on the VMD endpoint's DMA operations. The problem with this
> was that VMD domain devices would use the VMD endpoint's attributes when
> doing DMA and IOMMU mapping. We can be smarter about this by only using
> the VMD endpoint when mapping and providing the correct child device's
> attributes during DMA operations.
>
> This patch removes the dma_map_ops redirect.
>
> Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Looks good.
Reviewed-by: Keith Busch <kbusch@kernel.org>
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next prev parent reply other threads:[~2020-01-22 16:56 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-21 13:37 [PATCH v5 0/7] Clean up VMD DMA Map Ops Jon Derrick
2020-01-21 13:37 ` [PATCH v5 1/7] x86/PCI: Add a to_pci_sysdata helper Jon Derrick
2020-01-21 13:37 ` [PATCH v5 2/7] x86/PCI: Expose VMD's PCI Device in pci_sysdata Jon Derrick
2020-01-21 13:37 ` [PATCH v5 3/7] PCI: Introduce pci_real_dma_dev() Jon Derrick
2020-01-22 21:12 ` Bjorn Helgaas
2020-01-23 16:08 ` Lorenzo Pieralisi
2020-01-21 13:37 ` [PATCH v5 4/7] iommu/vt-d: Use pci_real_dma_dev() for mapping Jon Derrick
2020-01-22 4:37 ` Lu Baolu
2020-01-21 13:37 ` [PATCH v5 5/7] iommu/vt-d: Remove VMD child device sanity check Jon Derrick
2020-01-22 4:37 ` Lu Baolu
2020-01-21 13:37 ` [PATCH v5 6/7] PCI: vmd: Stop overriding dma_map_ops Jon Derrick
2020-01-22 16:56 ` Keith Busch [this message]
2020-01-21 13:37 ` [PATCH v5 7/7] x86/PCI: Remove X86_DEV_DMA_OPS Jon Derrick
2020-01-24 21:02 ` [PATCH v5 0/7] Clean up VMD DMA Map Ops Bjorn Helgaas
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