Changes in Makefile

6e869de3a1b9ef9f096223e0e7f30c727de4f6bc - Merge tag 'hyperv-next-signed-20260621' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Mon, 22 Jun 2026 17:06:13 +0200

Merge tag 'hyperv-next-signed-20260621' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linuxPull hyperv updates from Wei Liu: - Use wakeup mailbox to boot APs in Hyper-V VTL2 TDX guests (Yunhong Jiang, Ricardo Neri) - Move the Hyper-V IOMMU to its own subdirectory (Mukesh Rathor) - Cosmetic changes to mshv and balloon driver (Junrui Luo, Markus Elfring)* tag 'hyperv-next-signed-20260621' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: mshv: add bounds check on vp_index in mshv_intercept_isr() hv_balloon: Simplify data output in hv_balloon_debug_show() x86/hyperv: Cosmetic changes in irqdomain.c for readability iommu/hyperv: Create hyperv subdirectory under drivers/iommu x86/hyperv/vtl: Use the wakeup mailbox to boot secondary CPUs x86/hyperv/vtl: Mark the wakeup mailbox page as private x86/acpi: Add a helper to get the address of the wakeup mailbox x86/hyperv/vtl: Setup the 64-bit trampoline for TDX guests x86/realmode: Make the location of the trampoline configurable x86/hyperv/vtl: Set real_mode_header in hv_vtl_init_platform() x86/dt: Parse the Wakeup Mailbox for Intel processors dt-bindings: reserved-memory: Wakeup Mailbox for Intel processors x86/acpi: Add functions to setup and access the wakeup mailbox x86/topology: Add missing struct declaration and attribute dependency List of files: /linux/drivers/iommu/Makefile

c14efec1452098ec97d30423e4120e4fa90e0663 - iommu/hyperv: Create hyperv subdirectory under drivers/iommu

Thu, 04 Jun 2026 00:50:10 +0200

iommu/hyperv: Create hyperv subdirectory under drivers/iommuCreate hyperv subdirectory under drivers/iommu in anticipation of moreHyper-V related files from upcoming PCI passthrough and PV-IOMMU patches.Also, the current file hyperv-iommu.c actually implements irq remapping onx86, so rename to more appropriate hv-irq-remap-x86.c and move it underthe new hyperv subdirectory. Since this file implements irq_remap_opsexposed by drivers/iommu/irq_remapping.h, it cannot be relocated to theirq directory. This is in sync with other backend directories like amdand intel there.Lastly, this file should not be tied to CONFIG_HYPERV_IOMMU, but toCONFIG_HYPERV and CONFIG_IRQ_REMAP.Signed-off-by: Mukesh R Reviewed-by: Jacob Pan Signed-off-by: Wei Liu List of files: /linux/drivers/iommu/Makefile

917ace84b7702ab067572e3e9bff03a4e4dce7b9 - iommu: Add verisilicon IOMMU driver

Wed, 15 Apr 2026 09:23:39 +0200

iommu: Add verisilicon IOMMU driverThe Verisilicon IOMMU hardware block can be found in combinationwith Verisilicon hardware video codecs (encoders or decoders) ondifferent SoCs.Enable it will allow us to use non contiguous memory allocatorsfor Verisilicon video codecs.Signed-off-by: Benjamin Gaignard Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

466ae6978a5b8c6022bd4537fbfd00e94bb07219 - iommu: Add page_ext for IOMMU_DEBUG_PAGEALLOC

Fri, 09 Jan 2026 18:18:02 +0100

iommu: Add page_ext for IOMMU_DEBUG_PAGEALLOCAdd a new config IOMMU_DEBUG_PAGEALLOC, which registers new data topage_ext.This config will be used by the IOMMU API to track pages mapped inthe IOMMU to catch drivers trying to free kernel memory that theystill map in their domains, causing all types of memory corruption.This behaviour is disabled by default and can be enabled usingkernel cmdline iommu.debug_pagealloc.Acked-by: David Hildenbrand (Red Hat) Reviewed-by: Pranjal Shrivastava Reviewed-by: Lu Baolu Signed-off-by: Mostafa Saleh Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

7e06063a43d317c1ca9278b6662555f687f43f03 - iommu/io-pgtable-arm-selftests: Use KUnit

Mon, 03 Nov 2025 13:33:52 +0100

iommu/io-pgtable-arm-selftests: Use KUnitIntegrate the selftests as part of kunit.Now instead of the test only being run at boot, it can run:- With CONFIG_IOMMU_IO_PGTABLE_LPAE_KUNIT_TEST=y It will automatically run at boot as before.- Otherwise with CONFIG_IOMMU_IO_PGTABLE_LPAE_KUNIT_TEST=m: 1) on module load: Once the module load the self test will run # modprobe io-pgtable-arm-selftests 2) debugfs With CONFIG_KUNIT_DEBUGFS=y You can run the test with # echo 1 > /sys/kernel/debug/kunit/io-pgtable-arm-test/run 3) Using kunit.py You can also use the helper script which uses Qemu in the background # ./tools/testing/kunit/kunit.py run --build_dir build_kunit_arm64 --arch arm64 \ --make_options LLVM=1 --kunitconfig ./kunit/kunitconfig [18:01:09] ============= io-pgtable-arm-test (1 subtest) ============== [18:01:09] [PASSED] arm_lpae_do_selftests [18:01:09] =============== [PASSED] io-pgtable-arm-test =============== [18:01:09] ============================================================Suggested-by: Jason Gunthorpe Reviewed-by: Jason Gunthorpe Reviewed-by: Pranjal Shrivastava Signed-off-by: Mostafa Saleh Acked-by: Will Deacon Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

699b059962add22b2a324645b6ae2a607fc1a93e - iommu/io-pgtable-arm: Move selftests to a separate file

Mon, 03 Nov 2025 13:33:50 +0100

iommu/io-pgtable-arm: Move selftests to a separate fileClean up the io-pgtable-arm library by moving the selftests out.Next the tests will be registered with kunit.This is useful also to factor out kernel specific code out, soit can compiled as part of the hypervisor object.Reviewed-by: Jason Gunthorpe Reviewed-by: Pranjal Shrivastava Signed-off-by: Mostafa Saleh Acked-by: Will Deacon Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

879ced2bab1ba95e98fac56c9503791183bc7cbb - iommupt: Add the AMD IOMMU v1 page table format

Tue, 04 Nov 2025 19:30:02 +0100

iommupt: Add the AMD IOMMU v1 page table formatAMD IOMMU v1 is unique in supporting contiguous pages with a variable sizeand it can decode the full 64 bit VA space. Unlike other x86 page tablesthis explicitly does not do sign extension as part of allowing the entire64 bit VA space to be supported.The general design is quite similar to the x86 PAE format, except with a6th level and quite different PTE encoding.This format is the only one that uses the PT_FEAT_DYNAMIC_TOP feature inthe existing code as the existing AMDv1 code starts out with a 3 leveltable and adds levels on the fly if more IOVA is needed.Comparing the performance of several operations to the existing version:iommu_map() pgsz ,avg new,old ns, min new,old ns , min % (+ve is better) 2^12, 65,64 , 62,61 , -1.01 2^13, 70,66 , 67,62 , -8.08 2^14, 73,69 , 71,65 , -9.09 2^15, 78,75 , 75,71 , -5.05 2^16, 89,89 , 86,84 , -2.02 2^17, 128,121 , 124,112 , -10.10 2^18, 175,175 , 170,163 , -4.04 2^19, 264,306 , 261,279 , 6.06 2^20, 444,525 , 438,489 , 10.10 2^21, 60,62 , 58,59 , 1.01 256*2^12, 381,1833 , 367,1795 , 79.79 256*2^21, 375,1623 , 356,1555 , 77.77 256*2^30, 356,1338 , 349,1277 , 72.72iommu_unmap() pgsz ,avg new,old ns, min new,old ns , min % (+ve is better) 2^12, 76,89 , 71,86 , 17.17 2^13, 79,89 , 75,86 , 12.12 2^14, 78,90 , 74,86 , 13.13 2^15, 82,89 , 74,86 , 13.13 2^16, 79,89 , 74,86 , 13.13 2^17, 81,89 , 77,87 , 11.11 2^18, 90,92 , 87,89 , 2.02 2^19, 91,93 , 88,90 , 2.02 2^20, 96,95 , 91,92 , 1.01 2^21, 72,88 , 68,85 , 20.20 256*2^12, 372,6583 , 364,6251 , 94.94 256*2^21, 398,6032 , 392,5758 , 93.93 256*2^30, 396,5665 , 389,5258 , 92.92The ~5-17x speedup when working with mutli-PTE map/unmaps is because theAMD implementation rewalks the entire table on every new PTE while thisversion retains its position. The same speedup will be seen with dirtys aswell.The old implementation triggers a compiler optimization that ends upgenerating a "rep stos" memset for contiguous PTEs. Since AMD can havecontiguous PTEs that span 2Kbytes of table this is a huge win compared toa normal movq loop. It is why the unmap side has a fairly flat runtime asthe contiguous PTE sides increases. This version makes it explicit with amemset64() call.Reviewed-by: Kevin Tian Reviewed-by: Vasant Hegde Tested-by: Alejandro Jimenez Tested-by: Pasha Tatashin Signed-off-by: Jason Gunthorpe Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

01c13a1d0e347a47d705fa16419d24569f3b00c4 - iommu: make inclusion of riscv directory conditional

Mon, 12 May 2025 15:13:43 +0200

iommu: make inclusion of riscv directory conditionalNothing in there is active if CONFIG_RISCV_IOMMU is not enabled, so the wholedirectory can depend on that switch as well.Fixes: 5c0ebbd3c6c6 ("iommu/riscv: Add RISC-V IOMMU platform device driver")Signed-off-by: Rolf Eike Beer Reviewed-by: Lu Baolu Link: https://lore.kernel.org/r/2235451.Icojqenx9y@devpool92.emlix.comSigned-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

85ef671f9727aac580924cc1ce1ca0892524beee - iommu: make inclusion of amd directory conditional

Mon, 12 May 2025 15:12:52 +0200

iommu: make inclusion of amd directory conditionalNothing in there is active if CONFIG_AMD_IOMMU is not enabled, so the wholedirectory can depend on that switch as well.Fixes: cbe94c6e1a7d ("iommu/amd: Move Kconfig and Makefile bits down into amd directory")Signed-off-by: Rolf Eike Beer Reviewed-by: Lu Baolu Link: https://lore.kernel.org/r/1894970.atdPhlSkOF@devpool92.emlix.comSigned-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

ddcc66cfe83ad0d6ec7cc5f94084767772fe5c9e - iommu: make inclusion of intel directory conditional

Mon, 12 May 2025 15:11:51 +0200

iommu: make inclusion of intel directory conditionalNothing in there is active if CONFIG_INTEL_IOMMU is not enabled, so the wholedirectory can depend on that switch as well.Fixes: ab65ba57e3ac ("iommu/vt-d: Move Kconfig and Makefile bits down into intel directory")Signed-off-by: Rolf Eike Beer Reviewed-by: Lu Baolu Link: https://lore.kernel.org/r/3818749.MHq7AAxBmi@devpool92.emlix.comSigned-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

f5af4a4f7ccb58c0022175b3457c840a77463e7a - iommu/pages: De-inline the substantial functions

Tue, 08 Apr 2025 18:53:55 +0200

iommu/pages: De-inline the substantial functionsThese are called in a lot of places and are not trivial. Move them to thecore module.Tidy some of the comments and function arguments, fold__iommu_alloc_account() into its only caller, change__iommu_free_account() into __iommu_free_page() to remove someduplication.Reviewed-by: Lu Baolu Reviewed-by: Mostafa Saleh Tested-by: Nicolin Chen Tested-by: Alejandro Jimenez Signed-off-by: Jason Gunthorpe Link: https://lore.kernel.org/r/7-v4-c8663abbb606+3f7-iommu_pages_jgg@nvidia.comSigned-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

5c0ebbd3c6c6e00af112fe053e81ac0c7cafe647 - iommu/riscv: Add RISC-V IOMMU platform device driver

Wed, 16 Oct 2024 08:52:14 +0200

iommu/riscv: Add RISC-V IOMMU platform device driverIntroduce platform device driver for implementation of RISC-V IOMMUarchitected hardware.Hardware interface definition located in file iommu-bits.h is based onratified RISC-V IOMMU Architecture Specification version 1.0.0.This patch implements platform device initialization, early check andconfiguration of the IOMMU interfaces and enables global pass-throughaddress translation mode (iommu_mode == BARE), without registeringhardware instance in the IOMMU subsystem.Link: https://github.com/riscv-non-isa/riscv-iommuCo-developed-by: Nick Kossifidis Signed-off-by: Nick Kossifidis Co-developed-by: Sebastien Boeuf Signed-off-by: Sebastien Boeuf Reviewed-by: Lu Baolu Signed-off-by: Tomasz Jeznach Acked-by: Palmer Dabbelt Link: https://lore.kernel.org/r/2f2e4530c0ee4a81385efa90f1da932f5179f3fb.1729059707.git.tjeznach@rivosinc.comSigned-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

17c51a0ea36b800e7a5998a92d83016c82935dff - iommu: Separate SVA and IOPF

Mon, 12 Feb 2024 02:22:21 +0100

iommu: Separate SVA and IOPFAdd CONFIG_IOMMU_IOPF for page fault handling framework and select itfrom its real consumer. Move iopf function declaration from iommu-sva.hto iommu.h and remove iommu-sva.h as it's empty now.Consolidate all SVA related code into iommu-sva.c:- Move iommu_sva_domain_alloc() from iommu.c to iommu-sva.c.- Move sva iopf handling code from io-pgfault.c to iommu-sva.c.Consolidate iommu_report_device_fault() and iommu_page_response() intoio-pgfault.c.Export iopf_free_group() and iopf_group_response() for iopf handlersimplemented in modules. Some functions are renamed with more meaningfulnames. No other intentional functionality changes.Signed-off-by: Lu Baolu Reviewed-by: Jason Gunthorpe Reviewed-by: Kevin Tian Tested-by: Yan Zhao Tested-by: Longfang Liu Link: https://lore.kernel.org/r/20240212012227.119381-11-baolu.lu@linux.intel.comSigned-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

c462944901319cb52ec0d0382dcea64f4f6f70e8 - iommu/tegra-gart: Remove tegra-gart

Wed, 13 Sep 2023 15:43:39 +0200

iommu/tegra-gart: Remove tegra-gartThierry says this is not used anymore, and doesn't think it makes sense asan iommu driver. The HW it supports is about 10 years old now and newer HWuses different IOMMU drivers.As this is the only driver with a GART approach, and it doesn't reallymeet the driver expectations from the IOMMU core, let's just remove itso we don't have to think about how to make it fit in.It has a number of identified problems: - The assignment of iommu_groups doesn't match the HW behavior - It claims to have an UNMANAGED domain but it is really an IDENTITY domain with a translation aperture. This is inconsistent with the core expectation for security sensitive operations - It doesn't implement a SW page table under struct iommu_domain so * It can't accept a map until the domain is attached * It forgets about all maps after the domain is detached * It doesn't clear the HW of maps once the domain is detached (made worse by having the wrong groups)Cc: Thierry Reding Cc: Dmitry Osipenko Acked-by: Thierry Reding Reviewed-by: Lu Baolu Reviewed-by: Jerry Snitselaar Signed-off-by: Jason Gunthorpe Link: https://lore.kernel.org/r/6-v8-81230027b2fa+9d-iommu_all_defdom_jgg@nvidia.comSigned-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

99b5726b44230329f35b4c4d7fe1577d4f4edb31 - iommu: Remove ioasid infrastructure

Wed, 22 Mar 2023 21:08:03 +0100

iommu: Remove ioasid infrastructureThis has no use anymore, delete it all.Reviewed-by: Kevin Tian Reviewed-by: Lu Baolu Signed-off-by: Jason Gunthorpe Signed-off-by: Jacob Pan Link: https://lore.kernel.org/r/20230322200803.869130-8-jacob.jun.pan@linux.intel.comSigned-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

2ff4bed7fee72ba1abfcff5f11ae8f8e570353f2 - iommufd: File descriptor, context, kconfig and makefiles

Tue, 29 Nov 2022 21:29:29 +0100

iommufd: File descriptor, context, kconfig and makefilesThis is the basic infrastructure of a new miscdevice to hold the iommufdIOCTL API.It provides: - A miscdevice to create file descriptors to run the IOCTL interface over - A table based ioctl dispatch and centralized extendable pre-validation step - An xarray mapping userspace ID's to kernel objects. The design has multiple inter-related objects held within in a single IOMMUFD fd - A simple usage count to build a graph of object relations and protect against hostile userspace racing ioctlsThe only IOCTL provided in this patch is the generic 'destroy any objectby handle' operation.Link: https://lore.kernel.org/r/6-v6-a196d26f289e+11787-iommufd_jgg@nvidia.comReviewed-by: Lu Baolu Reviewed-by: Kevin Tian Reviewed-by: Eric Auger Tested-by: Nicolin Chen Tested-by: Yi Liu Tested-by: Lixiao Yang Tested-by: Matthew Rosato Signed-off-by: Yi Liu Signed-off-by: Jason Gunthorpe List of files: /linux/drivers/iommu/Makefile

757636ed2607a3269cd2764e3e4a0480384c6c26 - iommu: Rename iommu-sva-lib.{c,h}

Mon, 31 Oct 2022 01:59:17 +0100

iommu: Rename iommu-sva-lib.{c,h}Rename iommu-sva-lib.c[h] to iommu-sva.c[h] as it contains all codefor SVA implementation in iommu core.Signed-off-by: Lu Baolu Reviewed-by: Jean-Philippe Brucker Reviewed-by: Kevin Tian Reviewed-by: Jason Gunthorpe Tested-by: Zhangfei Gao Tested-by: Tony Zhu Link: https://lore.kernel.org/r/20221031005917.45690-14-baolu.lu@linux.intel.comSigned-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

745ef1092bcfcf3bca8d82c260947ca498022dde - iommu/io-pgtable: Move Apple DART support to its own file

Fri, 16 Sep 2022 11:41:49 +0200

iommu/io-pgtable: Move Apple DART support to its own fileThe pte format used by the DARTs found in the Apple M1 (t8103) is notfully compatible with io-pgtable-arm. The 24 MSB are used for subpageprotection (mapping only parts of page) and conflict with the addressmask. In addition bit 1 is not available for tagging entries but disablessubpage protection. Subpage protection could be useful to support a CPUgranule of 4k with the fixed IOMMU page size of 16k.The DARTs found on Apple M1 Pro/Max/Ultra use another different pteformat which is even less compatible. To support an output address sizeof 42 bit the address is shifted down by 4. Subpage protection ismandatory and bit 1 signifies uncached mappings used by the displaycontroller.It would be advantageous to share code for all known Apple DARTvariants to support common features. The page table allocator for DARTsis less complex since it uses a two levels of translation table withoutsupport for huge pages.Signed-off-by: Janne Grunau Acked-by: Robin Murphy Acked-by: Sven Peter Acked-by: Hector Martin Link: https://lore.kernel.org/r/20220916094152.87137-3-j@jannau.net[ joro: Fix compile warning in __dart_alloc_pages()]Signed-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile

7ba564722d98e3e7bc3922ad4f2885ca0336674e - iommu/sva: Rename CONFIG_IOMMU_SVA_LIB to CONFIG_IOMMU_SVA

Tue, 08 Feb 2022 00:02:44 +0100

iommu/sva: Rename CONFIG_IOMMU_SVA_LIB to CONFIG_IOMMU_SVAThis CONFIG option originally only referred to the SharedVirtual Address (SVA) library. But it is now also used fornon-library portions of code.Drop the "_LIB" suffix so that there is just one configurationoption for all code relating to SVA.Signed-off-by: Fenghua Yu Signed-off-by: Borislav Petkov Reviewed-by: Tony Luck Reviewed-by: Thomas Gleixner Reviewed-by: Lu Baolu Link: https://lore.kernel.org/r/20220207230254.3342514-2-fenghua.yu@intel.com List of files: /linux/drivers/iommu/Makefile

46d1fb072e76b161b0fb1ada9e37bf7e4d1f123f - iommu/dart: Add DART iommu driver

Tue, 03 Aug 2021 14:16:51 +0200

iommu/dart: Add DART iommu driverApple's new SoCs use iommus for almost all peripherals. These DeviceAddress Resolution Tables must be setup before these peripherals canact as DMA masters.Tested-by: Alyssa Rosenzweig Signed-off-by: Sven Peter Link: https://lore.kernel.org/r/20210803121651.61594-4-sven@svenpeter.devSigned-off-by: Joerg Roedel List of files: /linux/drivers/iommu/Makefile