linux-kernel - [PATCH v4 0/3] PCIe Host request to reserve IOVA

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1555038815-31916-1-git-send-email-srinath.mannam@broadcom.com>
Date:   Fri, 12 Apr 2019 08:43:32 +0530
From:   Srinath Mannam <srinath.mannam@...adcom.com>
To:     Bjorn Helgaas <bhelgaas@...gle.com>,
        Robin Murphy <robin.murphy@....com>,
        Joerg Roedel <joro@...tes.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        poza@...eaurora.org, Ray Jui <rjui@...adcom.com>
Cc:     bcm-kernel-feedback-list@...adcom.com, linux-pci@...r.kernel.org,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Srinath Mannam <srinath.mannam@...adcom.com>
Subject: [PATCH v4 0/3] PCIe Host request to reserve IOVA

Few SOCs have limitation that their PCIe host can't allow few inbound
address ranges. Allowed inbound address ranges are listed in dma-ranges
DT property and this address ranges are required to do IOVA mapping.
Remaining address ranges have to be reserved in IOVA mapping.

PCIe Host driver of those SOCs has to list resource entries of allowed
address ranges given in dma-ranges DT property in sorted order. This
sorted list of resources will be processed and reserve IOVA address for
inaccessible address holes while initializing IOMMU domain.

This patch set is based on Linux-5.0-rc2.

Changes from v3:
  - Addressed Robin Murphy review comments.
    - pcie-iproc: parse dma-ranges and make sorted resource list.
    - dma-iommu: process list and reserve gaps between entries

Changes from v2:
  - Patch set rebased to Linux-5.0-rc2

Changes from v1:
  - Addressed Oza review comments.

Srinath Mannam (3):
  PCI: Add dma_ranges window list
  iommu/dma: Reserve IOVA for PCIe inaccessible DMA address
  PCI: iproc: Add sorted dma ranges resource entries to host bridge

 drivers/iommu/dma-iommu.c           | 19 ++++++++++++++++
 drivers/pci/controller/pcie-iproc.c | 44 ++++++++++++++++++++++++++++++++++++-
 drivers/pci/probe.c                 |  3 +++
 include/linux/pci.h                 |  1 +
 4 files changed, 66 insertions(+), 1 deletion(-)

-- 
2.7.4