linux-kernel - [PATCH v3 0/2] PCI: dwc: fix two MSI issues

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: <20200925163435.680b8e08@xhacker.debian>
Date:   Fri, 25 Sep 2020 16:34:35 +0800
From:   Jisheng Zhang <Jisheng.Zhang@...aptics.com>
To:     Jingoo Han <jingoohan1@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Rob Herring <robh@...nel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Ard Biesheuvel <ardb@...nel.org>
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v3 0/2] PCI: dwc: fix two MSI issues

Fix two MSI issues. One to skip PCIE_MSI_INTR0* programming is MSI is
disabled, another to use an address in the driver data for MSI address,
the side effect of this patch is fixing the MSI page leakage during
suspend/resume.

Since v2:
  - add Acked-by tag
  - use an address in the driver data for MSI address. Thank Ard and Rob
    for pointing out this correct direction.
  - Since the MSI page has gone, the leak issue doesn't exist anymore,
    remove unnecessary patches.
  - Remove dw_pcie_free_msi rename and the last patch. They could be
    targeted to next. So will send out patches in a separate series.

Since v1:
  - add proper error handling patches.
  - solve the msi page leakage by moving dw_pcie_msi_init() from each
    users to designware host

Jisheng Zhang (2):
  PCI: dwc: Skip PCIE_MSI_INTR0* programming if MSI is disabled
  PCI: dwc: Use an address in the driver data for MSI address

 .../pci/controller/dwc/pcie-designware-host.c | 24 +++----------------
 drivers/pci/controller/dwc/pcie-designware.h  |  1 -
 2 files changed, 3 insertions(+), 22 deletions(-)

-- 
2.28.0