Changes in Kconfig

f4b369c6fe0ceaba2da2daff8c9eb415f85926dd - Merge branch 'next' into for-linus

Mon, 20 Apr 2026 03:28:57 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.1 merge window. List of files: /linux/drivers/iommu/intel/Kconfig

0421ccdfad0d92713a812a5aeb7d07b0ea7213c8 - Merge tag 'v7.0-rc3' into next

Thu, 12 Mar 2026 18:44:42 +0100

Merge tag 'v7.0-rc3' into nextSync up with the mainline to brig up the latest changes, specificallychanges to ALPS driver. List of files: /linux/drivers/iommu/intel/Kconfig

ec496f77b4c11036cc835d6f045fb5e5ef1e6530 - Merge branch 'for-6.20/sony' into for-linus

Mon, 09 Feb 2026 17:33:26 +0100

Merge branch 'for-6.20/sony' into for-linus- Support for Rock band 4 PS4 and PS5 guitars (Rosalie Wanders) List of files: /linux/drivers/iommu/intel/Kconfig

cc4adab164b772a34b3340d644b7c4728498581e - Merge tag 'v6.19-rc1' into msm-next

Tue, 20 Jan 2026 23:06:55 +0100

Merge tag 'v6.19-rc1' into msm-nextMerge Linux 6.19-rc1 in order to catch up with other changes (e.g. UBWCconfig database defining UBWC_6).Signed-off-by: Dmitry Baryshkov List of files: /linux/drivers/iommu/intel/Kconfig

5add3c3c280a35f7e258e9cef7607db5a2e56fdc - Merge drm/drm-next into drm-xe-next

Fri, 19 Dec 2025 11:51:22 +0100

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 6.19-rc1. An important upstream bugfix andto help unblock PTL CI.Signed-off-by: Thomas Hellström List of files: /linux/drivers/iommu/intel/Kconfig

ec439c38013550420aecc15988ae6acb670838c1 - Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.19-rc1

Wed, 17 Dec 2025 06:29:38 +0100

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after 6.19-rc1Cross-merge BPF and other fixes after downstream PR.Signed-off-by: Alexei Starovoitov List of files: /linux/drivers/iommu/intel/Kconfig

b8304863a3990d0f18c38e5b94191830a63ee1af - Merge drm/drm-next into drm-intel-next

Mon, 15 Dec 2025 14:24:02 +0100

Merge drm/drm-next into drm-intel-nextSync-up some display code needed for Async flips refactor.Signed-off-by: Rodrigo Vivi List of files: /linux/drivers/iommu/intel/Kconfig

7f790dd21a931c61167f7bdc327aecf2cebad327 - Merge drm/drm-next into drm-misc-next

Mon, 15 Dec 2025 09:27:39 +0100

Merge drm/drm-next into drm-misc-nextLet's kickstart the v6.20 (7.0?) release cycle.Signed-off-by: Maxime Ripard List of files: /linux/drivers/iommu/intel/Kconfig

24f171c7e145f43b9f187578e89b0982ce87e54c - Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

Sun, 21 Dec 2025 11:11:11 +0100

Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linusASoC: Fixes for v6.19We've been quite busy with fixes since the merge window, though not inany particularly exciting ways - the standout thing is the fix for _SXcontrols which were broken by a change to how we do clamping, otherwiseit's all fairly run of the mill fixes and quirks. List of files: /linux/drivers/iommu/intel/Kconfig

84318277d6334c6981ab326d4acc87c6a6ddc9b8 - Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Mon, 15 Dec 2025 12:53:27 +0100

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixesPull in rc1 to include all changes since the merge window closed,and grab all fixes and changes from drm/drm-next.Signed-off-by: Maarten Lankhorst List of files: /linux/drivers/iommu/intel/Kconfig

ce5cfb0fa20dc6454da039612e34325b7b4a8243 - Merge tag 'iommu-updates-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux

Fri, 05 Dec 2025 03:05:06 +0100

Merge tag 'iommu-updates-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linuxPull iommu updates from Joerg Roedel: - Introduction of the generic IO page-table framework with support for Intel and AMD IOMMU formats from Jason. This has good potential for unifying more IO page-table implementations and making future enhancements more easy. But this also needed quite some fixes during development. All known issues have been fixed, but my feeling is that there is a higher potential than usual that more might be needed. - Intel VT-d updates: - Use right invalidation hint in qi_desc_iotlb() - Reduce the scope of INTEL_IOMMU_FLOPPY_WA - ARM-SMMU updates: - Qualcomm device-tree binding updates for Kaanapali and Glymur SoCs and a new clock for the TBU. - Fix error handling if level 1 CD table allocation fails. - Permit more than the architectural maximum number of SMRs for funky Qualcomm mis-implementations of SMMUv2. - Mediatek driver: - MT8189 iommu support - Move ARM IO-pgtable selftests to kunit - Device leak fixes for a couple of drivers - Random smaller fixes and improvements* tag 'iommu-updates-v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (81 commits) iommupt/vtd: Support mgaw's less than a 4 level walk for first stage iommupt/vtd: Allow VT-d to have a larger table top than the vasz requires powerpc/pseries/svm: Make mem_encrypt.h self contained genpt: Make GENERIC_PT invisible iommupt: Avoid a compiler bug with sw_bit iommu/arm-smmu-qcom: Enable use of all SMR groups when running bare-metal iommupt: Fix unlikely flows in increase_top() iommu/amd: Propagate the error code returned by __modify_irte_ga() in modify_irte_ga() MAINTAINERS: Update my email address iommu/arm-smmu-v3: Fix error check in arm_smmu_alloc_cd_tables dt-bindings: iommu: qcom_iommu: Allow 'tbu' clock iommu/vt-d: Restore previous domain::aperture_end calculation iommu/vt-d: Fix unused invalidation hint in qi_desc_iotlb iommu/vt-d: Set INTEL_IOMMU_FLOPPY_WA depend on BLK_DEV_FD iommu/tegra: fix device leak on probe_device() iommu/sun50i: fix device leak on of_xlate() iommu/omap: simplify probe_device() error handling iommu/omap: fix device leaks on probe_device() iommu/mediatek-v1: add missing larb count sanity check iommu/mediatek-v1: fix device leaks on probe() ... List of files: /linux/drivers/iommu/intel/Kconfig

0d081b16946ef449fcb35b6edc1ef6f9fea6f0a0 - Merge branches 'arm/smmu/updates', 'arm/smmu/bindings', 'mediatek', 'nvidia/tegra', 'intel/vt-d', 'amd/amd-vi' and 'core' into next

Fri, 28 Nov 2025 08:44:21 +0100

Merge branches 'arm/smmu/updates', 'arm/smmu/bindings', 'mediatek', 'nvidia/tegra', 'intel/vt-d', 'amd/amd-vi' and 'core' into next List of files: /linux/drivers/iommu/intel/Kconfig

cb3db5a39e2a6b6396df1780d39a250f649d2e3a - iommu/vt-d: Set INTEL_IOMMU_FLOPPY_WA depend on BLK_DEV_FD

Wed, 19 Nov 2025 06:16:12 +0100

iommu/vt-d: Set INTEL_IOMMU_FLOPPY_WA depend on BLK_DEV_FDINTEL_IOMMU_FLOPPY_WA workaround was introduced to create direct mappingsfor first 16MB for floppy devices as the floppy drivers were not usingdma apis. We need not do this direct map if floppy driver is notenabled.INTEL_IOMMU_FLOPPY_WA is generally not a good idea. Iommu will bemapping pages in this address range while kernel would also beallocating from this range(mostly on memory stress). A misbehavingdevice using this domain will have access to the pages that thekernel might be actively using. We noticed this while running a testthat was trying to figure out if any pages used by kernel is in iommupage tables.This patch reduces the scope of the above issue by disabling theworkaround when floppy driver is not enabled. But we would still need tofix the floppy driver to use dma apis so that we need not do direct mapwithout reserving the pages. Or the other option is to reserve thismemory range in firmware so that kernel will not use the pages.Fixes: d850c2ee5fe2 ("iommu/vt-d: Expose ISA direct mapping region via iommu_get_resv_regions")Fixes: 49a0429e53f2 ("Intel IOMMU: Iommu floppy workaround")Signed-off-by: Vineeth Pillai (Google) Link: https://lore.kernel.org/r/20251002161625.1155133-1-vineeth@bitbyteword.orgSigned-off-by: Lu Baolu Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/intel/Kconfig

d373449d8e97891434db0c64afca79d903c1194e - iommu/vt-d: Use the generic iommu page table

Thu, 23 Oct 2025 20:22:36 +0200

iommu/vt-d: Use the generic iommu page tableReplace the VT-d iommu_domain implementation of the VT-d second stage andfirst stage page tables with the iommupt VTDSS and x86_64pagetables. x86_64 is shared with the AMD driver.There are a couple notable things in VT-d:- Like AMD the second stage format is not sign extended, unlike AMD it cannot decode a full 64 bits. The first stage format is a normal sign extended x86 page table- The HW caps can indicate how many levels, how many address bits and what leaf page sizes are supported in HW. As before the highest number of levels that can translate the entire supported address width is used. The supported page sizes are adjusted directly from the dedicated first/second stage cap bits.- VTD requires flushing 'write buffers'. This logic is left unchanged, the write buffer flushes on any gather flush or through iotlb_sync_map.- Like ARM, VTD has an optional non-coherent page table walker that requires cache flushing. This is supported through PT_FEAT_DMA_INCOHERENT the same as ARM, however x86 can't use the DMA API for flush, it must call the arch function clflush_cache_range()- The PT_FEAT_DYNAMIC_TOP can probably be supported on VT-d someday for the second stage when it uses 128 bit atomic stores for the HW context structures.- PT_FEAT_VTDSS_FORCE_WRITEABLE is used to work around ERRATA_772415_SPR17- A kernel command line parameter "sp_off" disables all page sizes except 4kRemove all the unused iommu_domain page table code. The debugfs paths havetheir own independent page table walker that is left alone for now.This corrects a race with the non-coherent walker that the ARMimplementations have fixed: CPU 0 CPU 1 pfn_to_dma_pte() pfn_to_dma_pte() pte = &parent[offset]; if (!dma_pte_present(pte)) { try_cmpxchg64(&pte->val) pte = &parent[offset]; .. dma_pte_present(pte) .. [...] // iommu_map() completes // Device does DMA domain_flush_cache(pte)The CPU 1 mapping operation shares a page table level with the CPU 0mapping operation. CPU 0 installed a new page table level but has notflushed it yet. CPU1 returns from iommu_map() and the device does DMA. Thenon coherent walker fails to see the new table level installed by CPU 0and fails the DMA with non-present.The iommupt PT_FEAT_DMA_INCOHERENT implementation uses the ARM design ofstoring a flag when CPU 0 completes the flush. If the flag is not set CPU1 will also flush to ensure the HW can fully walk to the PTE beinginstalled.Cc: Tina Zhang Reviewed-by: Lu Baolu Reviewed-by: Kevin Tian Signed-off-by: Jason Gunthorpe Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/intel/Kconfig

c771600c6af14749609b49565ffb4cac2959710d - Merge drm/drm-next into drm-intel-gt-next

Wed, 05 Feb 2025 10:29:14 +0100

Merge drm/drm-next into drm-intel-gt-nextWe need4ba4f1afb6a9 ("perf: Generic hotplug support for a PMU with a scope")in order to land a i915 PMU simplification and a fix. That landed in 6.12and we are stuck at 6.9 so lets bump things forward.Signed-off-by: Tvrtko Ursulin List of files: /linux/drivers/iommu/intel/Kconfig

60675d4ca1ef0857e44eba5849b74a3a998d0c0f - Merge branch 'linus' into x86/mm, to pick up fixes

Fri, 20 Dec 2024 10:25:44 +0100

Merge branch 'linus' into x86/mm, to pick up fixesSigned-off-by: Ingo Molnar List of files: /linux/drivers/iommu/intel/Kconfig

25768de50b1f2dbb6ea44bd5148a87fe2c9c3688 - Merge branch 'next' into for-linus

Tue, 21 Jan 2025 06:37:39 +0100

Merge branch 'next' into for-linusPrepare input updates for 6.14 merge window. List of files: /linux/drivers/iommu/intel/Kconfig

6d4a0f4ea72319c9a37c1a7191695467006dd272 - Merge tag 'v6.13-rc3' into next

Tue, 17 Dec 2024 18:40:45 +0100

Merge tag 'v6.13-rc3' into nextSync up with the mainline. List of files: /linux/drivers/iommu/intel/Kconfig

c5fb51b71788926feef0d07f30c8af1d5e4af1a6 - Merge remote-tracking branch 'pm/opp/linux-next' into HEAD

Fri, 03 Jan 2025 16:13:45 +0100

Merge remote-tracking branch 'pm/opp/linux-next' into HEADMerge pm/opp tree to get dev_pm_opp_get_bw()Signed-off-by: Rob Clark List of files: /linux/drivers/iommu/intel/Kconfig

e7f0a3a6f7339af55f1ca2c27131739d75569c08 - Merge drm/drm-next into drm-intel-next

Wed, 11 Dec 2024 21:06:05 +0100

Merge drm/drm-next into drm-intel-nextCatching up with 6.13-rc2.Signed-off-by: Rodrigo Vivi List of files: /linux/drivers/iommu/intel/Kconfig