user/sven/linux.git/include/linux/efi.h, branch v6.9.3

Merge tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2024-03-15T00:43:30Z

Pull MM updates from Andrew Morton: - Sumanth Korikkar has taught s390 to allocate hotplug-time page frames from hotplugged memory rather than only from main memory. Series "implement "memmap on memory" feature on s390". - More folio conversions from Matthew Wilcox in the series "Convert memcontrol charge moving to use folios" "mm: convert mm counter to take a folio" - Chengming Zhou has optimized zswap's rbtree locking, providing significant reductions in system time and modest but measurable reductions in overall runtimes. The series is "mm/zswap: optimize the scalability of zswap rb-tree". - Chengming Zhou has also provided the series "mm/zswap: optimize zswap lru list" which provides measurable runtime benefits in some swap-intensive situations. - And Chengming Zhou further optimizes zswap in the series "mm/zswap: optimize for dynamic zswap_pools". Measured improvements are modest. - zswap cleanups and simplifications from Yosry Ahmed in the series "mm: zswap: simplify zswap_swapoff()". - In the series "Add DAX ABI for memmap_on_memory", Vishal Verma has contributed several DAX cleanups as well as adding a sysfs tunable to control the memmap_on_memory setting when the dax device is hotplugged as system memory. - Johannes Weiner has added the large series "mm: zswap: cleanups", which does that. - More DAMON work from SeongJae Park in the series "mm/damon: make DAMON debugfs interface deprecation unignorable" "selftests/damon: add more tests for core functionalities and corner cases" "Docs/mm/damon: misc readability improvements" "mm/damon: let DAMOS feeds and tame/auto-tune itself" - In the series "mm/mempolicy: weighted interleave mempolicy and sysfs extension" Rakie Kim has developed a new mempolicy interleaving policy wherein we allocate memory across nodes in a weighted fashion rather than uniformly. This is beneficial in heterogeneous memory environments appearing with CXL. - Christophe Leroy has contributed some cleanup and consolidation work against the ARM pagetable dumping code in the series "mm: ptdump: Refactor CONFIG_DEBUG_WX and check_wx_pages debugfs attribute". - Luis Chamberlain has added some additional xarray selftesting in the series "test_xarray: advanced API multi-index tests". - Muhammad Usama Anjum has reworked the selftest code to make its human-readable output conform to the TAP ("Test Anything Protocol") format. Amongst other things, this opens up the use of third-party tools to parse and process out selftesting results. - Ryan Roberts has added fork()-time PTE batching of THP ptes in the series "mm/memory: optimize fork() with PTE-mapped THP". Mainly targeted at arm64, this significantly speeds up fork() when the process has a large number of pte-mapped folios. - David Hildenbrand also gets in on the THP pte batching game in his series "mm/memory: optimize unmap/zap with PTE-mapped THP". It implements batching during munmap() and other pte teardown situations. The microbenchmark improvements are nice. - And in the series "Transparent Contiguous PTEs for User Mappings" Ryan Roberts further utilizes arm's pte's contiguous bit ("contpte mappings"). Kernel build times on arm64 improved nicely. Ryan's series "Address some contpte nits" provides some followup work. - In the series "mm/hugetlb: Restore the reservation" Breno Leitao has fixed an obscure hugetlb race which was causing unnecessary page faults. He has also added a reproducer under the selftest code. - In the series "selftests/mm: Output cleanups for the compaction test", Mark Brown did what the title claims. - Kinsey Ho has added the series "mm/mglru: code cleanup and refactoring". - Even more zswap material from Nhat Pham. The series "fix and extend zswap kselftests" does as claimed. - In the series "Introduce cpu_dcache_is_aliasing() to fix DAX regression" Mathieu Desnoyers has cleaned up and fixed rather a mess in our handling of DAX on archiecctures which have virtually aliasing data caches. The arm architecture is the main beneficiary. - Lokesh Gidra's series "per-vma locks in userfaultfd" provides dramatic improvements in worst-case mmap_lock hold times during certain userfaultfd operations. - Some page_owner enhancements and maintenance work from Oscar Salvador in his series "page_owner: print stacks and their outstanding allocations" "page_owner: Fixup and cleanup" - Uladzislau Rezki has contributed some vmalloc scalability improvements in his series "Mitigate a vmap lock contention". It realizes a 12x improvement for a certain microbenchmark. - Some kexec/crash cleanup work from Baoquan He in the series "Split crash out from kexec and clean up related config items". - Some zsmalloc maintenance work from Chengming Zhou in the series "mm/zsmalloc: fix and optimize objects/page migration" "mm/zsmalloc: some cleanup for get/set_zspage_mapping()" - Zi Yan has taught the MM to perform compaction on folios larger than order=0. This a step along the path to implementaton of the merging of large anonymous folios. The series is named "Enable >0 order folio memory compaction". - Christoph Hellwig has done quite a lot of cleanup work in the pagecache writeback code in his series "convert write_cache_pages() to an iterator". - Some modest hugetlb cleanups and speedups in Vishal Moola's series "Handle hugetlb faults under the VMA lock". - Zi Yan has changed the page splitting code so we can split huge pages into sizes other than order-0 to better utilize large folios. The series is named "Split a folio to any lower order folios". - David Hildenbrand has contributed the series "mm: remove total_mapcount()", a cleanup. - Matthew Wilcox has sought to improve the performance of bulk memory freeing in his series "Rearrange batched folio freeing". - Gang Li's series "hugetlb: parallelize hugetlb page init on boot" provides large improvements in bootup times on large machines which are configured to use large numbers of hugetlb pages. - Matthew Wilcox's series "PageFlags cleanups" does that. - Qi Zheng's series "minor fixes and supplement for ptdesc" does that also. S390 is affected. - Cleanups to our pagemap utility functions from Peter Xu in his series "mm/treewide: Replace pXd_large() with pXd_leaf()". - Nico Pache has fixed a few things with our hugepage selftests in his series "selftests/mm: Improve Hugepage Test Handling in MM Selftests". - Also, of course, many singleton patches to many things. Please see the individual changelogs for details. * tag 'mm-stable-2024-03-13-20-04' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (435 commits) mm/zswap: remove the memcpy if acomp is not sleepable crypto: introduce: acomp_is_async to expose if comp drivers might sleep memtest: use {READ,WRITE}_ONCE in memory scanning mm: prohibit the last subpage from reusing the entire large folio mm: recover pud_leaf() definitions in nopmd case selftests/mm: skip the hugetlb-madvise tests on unmet hugepage requirements selftests/mm: skip uffd hugetlb tests with insufficient hugepages selftests/mm: dont fail testsuite due to a lack of hugepages mm/huge_memory: skip invalid debugfs new_order input for folio split mm/huge_memory: check new folio order when split a folio mm, vmscan: retry kswapd's priority loop with cache_trim_mode off on failure mm: add an explicit smp_wmb() to UFFDIO_CONTINUE mm: fix list corruption in put_pages_list mm: remove folio from deferred split list before uncharging it filemap: avoid unnecessary major faults in filemap_fault() mm,page_owner: drop unnecessary check mm,page_owner: check for null stack_record before bumping its refcount mm: swap: fix race between free_swap_and_cache() and swapoff() mm/treewide: align up pXd_leaf() retval across archs mm/treewide: drop pXd_large() ...

efi/libstub: Add get_event_log() support for CC platforms

2024-03-09T10:37:17Z

To allow event log info access after boot, EFI boot stub extracts the event log information and installs it in an EFI configuration table. Currently, EFI boot stub only supports installation of event log only for TPM 1.2 and TPM 2.0 protocols. Extend the same support for CC protocol. Since CC platform also uses TCG2 format, reuse TPM2 support code as much as possible. Link: https://uefi.org/specs/UEFI/2.10/38_Confidential_Computing.html#efi-cc-measurement-protocol [1] Signed-off-by: Kuppuswamy Sathyanarayanan Link: https://lkml.kernel.org/r/0229a87e-fb19-4dad-99fc-4afd7ed4099a%40collabora.com [ardb: Split out final events table handling to avoid version confusion] Signed-off-by: Ard Biesheuvel

efi/libstub: Add Confidential Computing (CC) measurement typedefs

2024-03-09T10:36:56Z

If the virtual firmware implements TPM support, TCG2 protocol will be used for kernel measurements and event logging support. But in CC environment, not all platforms support or enable the TPM feature. UEFI specification [1] exposes protocol and interfaces used for kernel measurements in CC platforms without TPM support. More details about the EFI CC measurements and logging can be found in [1]. Link: https://uefi.org/specs/UEFI/2.10/38_Confidential_Computing.html#efi-cc-measurement-protocol [1] Signed-off-by: Kuppuswamy Sathyanarayanan [ardb: Drop code changes, keep typedefs and #define's only] Signed-off-by: Ard Biesheuvel

efi/tpm: Use symbolic GUID name from spec for final events table

2024-03-09T10:36:56Z

The LINUX_EFI_ GUID identifiers are only intended to be used to refer to GUIDs that are part of the Linux implementation, and are not considered external ABI. (Famous last words). GUIDs that already have a symbolic name in the spec should use that name, to avoid confusion between firmware components. So use the official name EFI_TCG2_FINAL_EVENTS_TABLE_GUID for the TCG2 'final events' configuration table. Reviewed-by: Kuppuswamy Sathyanarayanan Reviewed-by: Ilias Apalodimas Signed-off-by: Ard Biesheuvel

arm64/mm: wire up PTE_CONT for user mappings

2024-02-22T23:27:18Z

With the ptep API sufficiently refactored, we can now introduce a new "contpte" API layer, which transparently manages the PTE_CONT bit for user mappings. In this initial implementation, only suitable batches of PTEs, set via set_ptes(), are mapped with the PTE_CONT bit. Any subsequent modification of individual PTEs will cause an "unfold" operation to repaint the contpte block as individual PTEs before performing the requested operation. While, a modification of a single PTE could cause the block of PTEs to which it belongs to become eligible for "folding" into a contpte entry, "folding" is not performed in this initial implementation due to the costs of checking the requirements are met. Due to this, contpte mappings will degrade back to normal pte mappings over time if/when protections are changed. This will be solved in a future patch. Since a contpte block only has a single access and dirty bit, the semantic here changes slightly; when getting a pte (e.g. ptep_get()) that is part of a contpte mapping, the access and dirty information are pulled from the block (so all ptes in the block return the same access/dirty info). When changing the access/dirty info on a pte (e.g. ptep_set_access_flags()) that is part of a contpte mapping, this change will affect the whole contpte block. This is works fine in practice since we guarantee that only a single folio is mapped by a contpte block, and the core-mm tracks access/dirty information per folio. In order for the public functions, which used to be pure inline, to continue to be callable by modules, export all the contpte_* symbols that are now called by those public inline functions. The feature is enabled/disabled with the ARM64_CONTPTE Kconfig parameter at build time. It defaults to enabled as long as its dependency, TRANSPARENT_HUGEPAGE is also enabled. The core-mm depends upon TRANSPARENT_HUGEPAGE to be able to allocate large folios, so if its not enabled, then there is no chance of meeting the physical contiguity requirement for contpte mappings. Link: https://lkml.kernel.org/r/20240215103205.2607016-13-ryan.roberts@arm.com Signed-off-by: Ryan Roberts Acked-by: Ard Biesheuvel Tested-by: John Hubbard Acked-by: Mark Rutland Reviewed-by: Catalin Marinas Cc: Alistair Popple Cc: Andrey Ryabinin Cc: Barry Song <21cnbao@gmail.com> Cc: Borislav Petkov (AMD) Cc: Dave Hansen Cc: David Hildenbrand Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: James Morse Cc: Kefeng Wang Cc: Marc Zyngier Cc: Matthew Wilcox (Oracle) Cc: Thomas Gleixner Cc: Will Deacon Cc: Yang Shi Cc: Zi Yan Signed-off-by: Andrew Morton

efivarfs: automatically update super block flag

2023-12-11T10:19:18Z

efivar operation is updated when the tee_stmm_efi module is probed. tee_stmm_efi module supports SetVariable runtime service, but user needs to manually remount the efivarfs as RW to enable the write access if the previous efivar operation does not support SetVariable and efivarfs is mounted as read-only. This commit notifies the update of efivar operation to efivarfs subsystem, then drops SB_RDONLY flag if the efivar operation supports SetVariable. Signed-off-by: Masahisa Kojima [ardb: use per-superblock instance of the notifier block] Signed-off-by: Ard Biesheuvel

efi: Add EFI_ACCESS_DENIED status code

2023-12-11T10:19:18Z

This commit adds the EFI_ACCESS_DENIED status code. Acked-by: Sumit Garg Co-developed-by: Ilias Apalodimas Signed-off-by: Ilias Apalodimas Signed-off-by: Masahisa Kojima Signed-off-by: Ard Biesheuvel

efi: expose efivar generic ops register function

2023-12-11T10:19:18Z

This is a preparation for supporting efivar operations provided by other than efi subsystem. Both register and unregister functions are exposed so that non-efi subsystem can revert the efi generic operation. Acked-by: Sumit Garg Co-developed-by: Ilias Apalodimas Signed-off-by: Ilias Apalodimas Signed-off-by: Masahisa Kojima Signed-off-by: Ard Biesheuvel

arch: Remove Itanium (IA-64) architecture

2023-09-11T08:13:17Z

The Itanium architecture is obsolete, and an informal survey [0] reveals that any residual use of Itanium hardware in production is mostly HP-UX or OpenVMS based. The use of Linux on Itanium appears to be limited to enthusiasts that occasionally boot a fresh Linux kernel to see whether things are still working as intended, and perhaps to churn out some distro packages that are rarely used in practice. None of the original companies behind Itanium still produce or support any hardware or software for the architecture, and it is listed as 'Orphaned' in the MAINTAINERS file, as apparently, none of the engineers that contributed on behalf of those companies (nor anyone else, for that matter) have been willing to support or maintain the architecture upstream or even be responsible for applying the odd fix. The Intel firmware team removed all IA-64 support from the Tianocore/EDK2 reference implementation of EFI in 2018. (Itanium is the original architecture for which EFI was developed, and the way Linux supports it deviates significantly from other architectures.) Some distros, such as Debian and Gentoo, still maintain [unofficial] ia64 ports, but many have dropped support years ago. While the argument is being made [1] that there is a 'for the common good' angle to being able to build and run existing projects such as the Grid Community Toolkit [2] on Itanium for interoperability testing, the fact remains that none of those projects are known to be deployed on Linux/ia64, and very few people actually have access to such a system in the first place. Even if there were ways imaginable in which Linux/ia64 could be put to good use today, what matters is whether anyone is actually doing that, and this does not appear to be the case. There are no emulators widely available, and so boot testing Itanium is generally infeasible for ordinary contributors. GCC still supports IA-64 but its compile farm [3] no longer has any IA-64 machines. GLIBC would like to get rid of IA-64 [4] too because it would permit some overdue code cleanups. In summary, the benefits to the ecosystem of having IA-64 be part of it are mostly theoretical, whereas the maintenance overhead of keeping it supported is real. So let's rip off the band aid, and remove the IA-64 arch code entirely. This follows the timeline proposed by the Debian/ia64 maintainer [5], which removes support in a controlled manner, leaving IA-64 in a known good state in the most recent LTS release. Other projects will follow once the kernel support is removed. [0] https://lore.kernel.org/all/CAMj1kXFCMh_578jniKpUtx_j8ByHnt=s7S+yQ+vGbKt9ud7+kQ@mail.gmail.com/ [1] https://lore.kernel.org/all/0075883c-7c51-00f5-2c2d-5119c1820410@web.de/ [2] https://gridcf.org/gct-docs/latest/index.html [3] https://cfarm.tetaneutral.net/machines/list/ [4] https://lore.kernel.org/all/87bkiilpc4.fsf@mid.deneb.enyo.de/ [5] https://lore.kernel.org/all/ff58a3e76e5102c94bb5946d99187b358def688a.camel@physik.fu-berlin.de/ Acked-by: Tony Luck Signed-off-by: Ard Biesheuvel

Merge tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm

2023-08-30T20:34:34Z

Pull drm updates from Dave Airlie: "The drm core grew a new generic gpu virtual address manager, and new execution locking helpers. These are used by nouveau now to provide uAPI support for the userspace Vulkan driver. AMD had a bunch of new IP core support, loads of refactoring around fbdev, but mostly just the usual amount of stuff across the board. core: - fix gfp flags in drmm_kmalloc gpuva: - add new generic GPU VA manager (for nouveau initially) syncobj: - add new DRM_IOCTL_SYNCOBJ_EVENTFD ioctl dma-buf: - acquire resv lock for mmap() in exporters - support dma-buf self import automatically - docs fixes backlight: - fix fbdev interactions atomic: - improve logging prime: - remove struct gem_prim_mmap plus driver updates gem: - drm_exec: add locking over multiple GEM objects - fix lockdep checking fbdev: - make fbdev userspace interfaces optional - use linux device instead of fbdev device - use deferred i/o helper macros in various drivers - Make FB core selectable without drivers - Remove obsolete flags FBINFO_DEFAULT and FBINFO_FLAG_DEFAULT - Add helper macros and Kconfig tokens for DMA-allocated framebuffer ttm: - support init_on_free - swapout fixes panel: - panel-edp: Support AUO B116XAB01.4 - Support Visionox R66451 plus DT bindings - ld9040: - Backlight support - magic improved - Kconfig fix - Convert to of_device_get_match_data() - Fix Kconfig dependencies - simple: - Set bpc value to fix warning - Set connector type for AUO T215HVN01 - Support Innolux G156HCE-L01 plus DT bindings - ili9881: Support TDO TL050HDV35 LCD panel plus DT bindings - startek: Support KD070FHFID015 MIPI-DSI panel plus DT bindings - sitronix-st7789v: - Support Inanbo T28CP45TN89 plus DT bindings - Support EDT ET028013DMA plus DT bindings - Various cleanups - edp: Add timings for N140HCA-EAC - Allow panels and touchscreens to power sequence together - Fix Innolux G156HCE-L01 LVDS clock bridge: - debugfs for chains support - dw-hdmi: - Improve support for YUV420 bus format - CEC suspend/resume - update EDID on HDMI detect - dw-mipi-dsi: Fix enable/disable of DSI controller - lt9611uxc: Use MODULE_FIRMWARE() - ps8640: Remove broken EDID code - samsung-dsim: Fix command transfer - tc358764: - Handle HS/VS polarity - Use BIT() macro - Various cleanups - adv7511: Fix low refresh rate - anx7625: - Switch to macros instead of hardcoded values - locking fixes - tc358767: fix hardware delays - sitronix-st7789v: - Support panel orientation - Support rotation property - Add support for Jasonic JT240MHQS-HWT-EK-E3 plus DT bindings amdgpu: - SDMA 6.1.0 support - HDP 6.1 support - SMUIO 14.0 support - PSP 14.0 support - IH 6.1 support - Lots of checkpatch cleanups - GFX 9.4.3 updates - Add USB PD and IFWI flashing documentation - GPUVM updates - RAS fixes - DRR fixes - FAMS fixes - Virtual display fixes - Soft IH fixes - SMU13 fixes - Rework PSP firmware loading for other IPs - Kernel doc fixes - DCN 3.0.1 fixes - LTTPR fixes - DP MST fixes - DCN 3.1.6 fixes - SMU 13.x fixes - PSP 13.x fixes - SubVP fixes - GC 9.4.3 fixes - Display bandwidth calculation fixes - VCN4 secure submission fixes - Allow building DC on RISC-V - Add visible FB info to bo_print_info - HBR3 fixes - GFX9 MCBP fix - GMC10 vmhub index fix - GMC11 vmhub index fix - Create a new doorbell manager - SR-IOV fixes - initial freesync panel replay support - revert zpos properly until igt regression is fixeed - use TTM to manage doorbell BAR - Expose both current and average power via hwmon if supported amdkfd: - Cleanup CRIU dma-buf handling - Use KIQ to unmap HIQ - GFX 9.4.3 debugger updates - GFX 9.4.2 debugger fixes - Enable cooperative groups fof gfx11 - SVM fixes - Convert older APUs to use dGPU path like newer APUs - Drop IOMMUv2 path as it is no longer used - TBA fix for aldebaran i915: - ICL+ DSI modeset sequence - HDCP improvements - MTL display fixes and cleanups - HSW/BDW PSR1 restored - Init DDI ports in VBT order - General display refactors - Start using plane scale factor for relative data rate - Use shmem for dpt objects - Expose RPS thresholds in sysfs - Apply GuC SLPC min frequency softlimit correctly - Extend Wa_14015795083 to TGL, RKL, DG1 and ADL - Fix a VMA UAF for multi-gt platform - Do not use stolen on MTL due to HW bug - Check HuC and GuC version compatibility on MTL - avoid infinite GPU waits due to premature release of request memory - Fixes and updates for GSC memory allocation - Display SDVO fixes - Take stolen handling out of FBC code - Make i915_coherent_map_type GT-centric - Simplify shmem_create_from_object map_type msm: - SM6125 MDSS support - DPU: SM6125 DPU support - DSI: runtime PM support, burst mode support - DSI PHY: SM6125 support in 14nm DSI PHY driver - GPU: prepare for a7xx - fix a690 firmware - disable relocs on a6xx and newer radeon: - Lots of checkpatch cleanups ast: - improve device-model detection - Represent BMV as virtual connector - Report DP connection status nouveau: - add new exec/bind interface to support Vulkan - document some getparam ioctls - improve VRAM detection - various fixes/cleanups - workraound DPCD issues ivpu: - MMU updates - debugfs support - Support vpu4 virtio: - add sync object support atmel-hlcdc: - Support inverted pixclock polarity etnaviv: - runtime PM cleanups - hang handling fixes exynos: - use fbdev DMA helpers - fix possible NULL ptr dereference komeda: - always attach encoder omapdrm: - use fbdev DMA helpers ingenic: - kconfig regmap fixes loongson: - support display controller mediatek: - Small mtk-dpi cleanups - DisplayPort: support eDP and aux-bus - Fix coverity issues - Fix potential memory leak if vmap() fail mgag200: - minor fixes mxsfb: - support disabling overlay planes panfrost: - fix sync in IRQ handling ssd130x: - Support per-controller default resolution plus DT bindings - Reduce memory-allocation overhead - Improve intermediate buffer size computation - Fix allocation of temporary buffers - Fix pitch computation - Fix shadow plane allocation tegra: - use fbdev DMA helpers - Convert to devm_platform_ioremap_resource() - support bridge/connector - enable PM tidss: - Support TI AM625 plus DT bindings - Implement new connector model plus driver updates vkms: - improve write back support - docs fixes - support gamma LUT zynqmp-dpsub: - misc fixes" * tag 'drm-next-2023-08-30' of git://anongit.freedesktop.org/drm/drm: (1327 commits) drm/gpuva_mgr: remove unused prev pointer in __drm_gpuva_sm_map() drm/tests/drm_kunit_helpers: Place correct function name in the comment header drm/nouveau: uapi: don't pass NO_PREFETCH flag implicitly drm/nouveau: uvmm: fix unset region pointer on remap drm/nouveau: sched: avoid job races between entities drm/i915: Fix HPD polling, reenabling the output poll work as needed drm: Add an HPD poll helper to reschedule the poll work drm/i915: Fix TLB-Invalidation seqno store drm/ttm/tests: Fix type conversion in ttm_pool_test drm/msm/a6xx: Bail out early if setting GPU OOB fails drm/msm/a6xx: Move LLC accessors to the common header drm/msm/a6xx: Introduce a6xx_llc_read drm/ttm/tests: Require MMU when testing drm/panel: simple: Fix Innolux G156HCE-L01 LVDS clock Revert "Revert "drm/amdgpu/display: change pipe policy for DCN 2.0"" drm/amdgpu: Add memory vendor information drm/amd: flush any delayed gfxoff on suspend entry drm/amdgpu: skip fence GFX interrupts disable/enable for S0ix drm/amdgpu: Remove gfxoff check in GFX v9.4.3 drm/amd/pm: Update pci link speed for smu v13.0.6 ...