linux-kernel - [PATCH RFC PREVIEW 2/6] iommu: Make IOMMU

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

Message-Id: <20240826-iopf-for-all-v1-2-59174e6a7528@samsung.com>
Date: Mon, 26 Aug 2024 13:40:28 +0200
From: Klaus Jensen <its@...elevant.dk>
To: David Woodhouse <dwmw2@...radead.org>, 
 Lu Baolu <baolu.lu@...ux.intel.com>, Joerg Roedel <joro@...tes.org>, 
 Will Deacon <will@...nel.org>, Robin Murphy <robin.murphy@....com>, 
 Jason Gunthorpe <jgg@...pe.ca>, Kevin Tian <kevin.tian@...el.com>
Cc: Minwoo Im <minwoo.im@...sung.com>, linux-kernel@...r.kernel.org, 
 iommu@...ts.linux.dev, Joel Granados <j.granados@...sung.com>, 
 Klaus Jensen <k.jensen@...sung.com>
Subject: [PATCH RFC PREVIEW 2/6] iommu: Make IOMMU_IOPF selectable in
 Kconfig

From: Joel Granados <j.granados@...sung.com>

IOMMU_IOPF is no longer selectable through INTEL_IOMMU_SVM effectively
severing their relation and allowing them to be used independently.

Signed-off-by: Joel Granados <j.granados@...sung.com>
---
 drivers/iommu/Kconfig       | 2 +-
 drivers/iommu/intel/Kconfig | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index a82f10054aec..d3ee8a0ad4a6 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -164,7 +164,7 @@ config IOMMU_SVA
 	bool
 
 config IOMMU_IOPF
-	bool
+	bool "Enable IO page fault in IOMMU"
 
 config FSL_PAMU
 	bool "Freescale IOMMU support"
diff --git a/drivers/iommu/intel/Kconfig b/drivers/iommu/intel/Kconfig
index f52fb39c968e..fb5a4593c197 100644
--- a/drivers/iommu/intel/Kconfig
+++ b/drivers/iommu/intel/Kconfig
@@ -51,7 +51,6 @@ config INTEL_IOMMU_SVM
 	depends on X86_64
 	select MMU_NOTIFIER
 	select IOMMU_SVA
-	select IOMMU_IOPF
 	help
 	  Shared Virtual Memory (SVM) provides a facility for devices
 	  to access DMA resources through process address space by

-- 
2.45.2