linux-kernel - [PATCH v2 for-next 0/3] RDMA: Provide an API for drivers to disassociate mmap pages

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 for Android: free password hash cracker in your pocket

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

Message-ID: <20240812125640.1003948-1-huangjunxian6@hisilicon.com>
Date: Mon, 12 Aug 2024 20:56:37 +0800
From: Junxian Huang <huangjunxian6@...ilicon.com>
To: <jgg@...pe.ca>, <leon@...nel.org>
CC: <linux-rdma@...r.kernel.org>, <linuxarm@...wei.com>,
	<linux-kernel@...r.kernel.org>, <huangjunxian6@...ilicon.com>
Subject: [PATCH v2 for-next 0/3] RDMA: Provide an API for drivers to disassociate mmap pages

Provide an API rdma_user_mmap_disassociate() for drivers to disassociate
mmap pages. Use this API in hns to prevent userspace from ringing doorbell
when HW is reset.

v1 -> v2:
* Keep uverbs_user_mmap_disassociate() in uverbs_main.c. The new api
  rdma_user_mmap_disassociate() is also moved to this file.
* Add "#if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS)" to hns's
  rdma_user_mmap_disassociate() call.

Chengchang Tang (3):
  RDMA/core: Provide rdma_user_mmap_disassociate() to disassociate mmap
    pages
  RDMA/hns: Link all uctx to uctx_list on a device
  RDMA/hns: Disassociate mmap pages for all uctx when HW is being reset

 drivers/infiniband/core/uverbs_main.c       | 21 +++++++++++++++++++++
 drivers/infiniband/hw/hns/hns_roce_device.h |  4 ++++
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c  | 17 +++++++++++++++++
 drivers/infiniband/hw/hns/hns_roce_main.c   | 13 +++++++++++++
 include/rdma/ib_verbs.h                     |  1 +
 5 files changed, 56 insertions(+)

--
2.33.0