kernel/git/next/linux-next.git/drivers/xen, branch master

Merge branch 'headers' of git://git.infradead.org/users/willy/pagecache.git

2026-09-11T15:17:01+00:00

# Conflicts: # net/ceph/osd_client.c

Merge branch into tip/master: 'sched/core'

2026-09-11T08:05:59+00:00

# New commits in sched/core: e81ee0630837 ("sched/fair: Reset NUMA fault locality after scan period update") ef9293b3b797 ("sched: dynamic: Fix preemption model strings") 879eaa76e608 ("sched: Remove unneeded function type cast in do_balance_callbacks()") f549101187c8 ("sched/deadline: check start_dl_timer expiry with ktime_before()") 2a672daa4b27 ("sched/feat: Use the new static key API for sched_feat") a5576ebce920 ("sched: Convert paravirt_steal to new static key APIs") 9650ce11f2e3 ("sched: dynamic: Simplify preempt model accessors") 5b9a28eeed37 ("sched: dynamic: Remove HAVE_PREEMPT_DYNAMIC_{CALL,KEY}") aa4178f63847 ("sched: dynamic: Simplify irqentry_exit_cond_resched()") b9d267b9d632 ("sched: dynamic: Simplify preempt_schedule{,_notrace}()") 88e0b3bb9930 ("sched: dynamic: Simplify {cond,might}_resched()") d3d16750693b ("sched: dynamic: Make PREEMPT_DYNAMIC depend on ARCH_HAS_PREEMPT_LAZY") 772d9ffbfd26 ("sched: Migrate whole chain in proxy_migrate_task()") 6b73a09e943f ("sched: Break out core of attach_tasks() helper into sched.h") 1f8805138593 ("sched: Switch rq->next_class in proxy_reset_donor()") 09351db90a28 ("sched/core: Don't proxy-exec unmatched cookie lock owners") 9be817f991e2 ("sched/core: Avoid migrating blocked_on tasks") 3dd95f077371 ("sched/core: Don't steal a proxy-exec donor") Signed-off-by: Ingo Molnar

treewide: refresh kmalloc_obj() conversions

2026-09-05T04:37:00+00:00

This is another run of the Coccinelle script for converting kmalloc() family of allocations to kmalloc_obj() via the existing rules in scripts/coccinelle/api/kmalloc_objs.cocci This catches both the set of kmalloc() uses added since the first kmalloc_obj() conversions in v7.0 and adds a large group missed in the first pass due to Coccinelle not interacting well with the cleanup.h scoped_...() family of macros[1]. I worked around this with spatch's "--macro-file" argument to a file with all the scoped_...() macros mapped to Coccinelle's YACFE_ITERATOR[2] as that was the closest viable control flow indicator I could find. Build tested allmodconfig on x86, arm64, arm, loongarch, mips, powerpc, riscv, and s390 with no new warnings. Link: https://lore.kernel.org/lkml/202609021314.8A9C0B8@keescook/ [1] Link: https://github.com/coccinelle/coccinelle/blob/master/standard.h [2] Signed-off-by: Kees Cook

sched: Convert paravirt_steal to new static key APIs

2026-09-02T08:28:24+00:00

paravirt_steal_rq_enabled and paravirt_steal_enabled use raw static_key APIs which are now deprecated. Use the new API instead. No functional change. Signed-off-by: Hongyan Xia Signed-off-by: Peter Zijlstra (Intel) Acked-by: Juergen Gross Link: https://patch.msgid.link/20260819081207.12150-1-hongyan.xia@transsion.com

headers: Remove swap.h from suspend.h

2026-08-25T19:12:26+00:00

Nothing in suspend.h needs swap.h. However, many files indirectly depend on some of swap.h's dependencies, so this is a large cross-subsystem patch. Stats: 42 are missing includes of interrupt.h (the question of why swap.h brings in interrupt.h remains unanswered). 10 missing includes of seq_file.h 5 missing includes of swap.h (obviously all files could have just added swap.h, but I preferred to bring in a more minimal inclusion set) 3 missing includes of highmem.h 2 missing includes of device.h 2 missing includes of string_choices.h 1 missing include of cacheflush.h 1 missing include of dma-direction.h 1 missing include of kthread.h 1 missing include of pagemap.h 1 missing include of string_helpers.h 1 missing include of writeback.h I tried to follow whatever conventions appeared to be in use for the various subsystems I touched; for example I added string_choices.h to drm_print.h instead of individually to each driver which used the functions declared there. Signed-off-by: Matthew Wilcox (Oracle)

Merge tags 'dma-mapping-7.3-2026-08-24' and 'dma-mapping-7.3-2026-08-24-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux

2026-08-24T18:35:46+00:00

Pull dma-mapping updates from Marek Szyprowski: - swiotlb: - new configuration option for the default pool size (Jagadeesh Pagadala) - reduce overhead for high watermark tracking (chenhuguanshen) - minor code cleanups and improvements (Vova Sharaienko, Honglei Huang and Marek Szyprowski) - add proper tracking of the shared DMA state through direct, pool and swiotlb paths (Aneesh Kumar K.V) This is important for confidential-computing * tag 'dma-mapping-7.3-2026-08-24' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: dma/swiotlb: decouple high watermark tracking from CONFIG_DEBUG_FS MAINTAINERS: update tree for DMA MAPPING HELPERS dma/swiotlb: introduce Kconfig option for compile-time default pool size dma-direct: Improve readability of the dma_direct_map_sg() for P2PDMA case iommu/dma: simplify dma_iova_destroy() and drop the free_iova helper dma-coherent: use KiB in DMA allocation logs dma-coherent: fix spacing coding style issue * tag 'dma-mapping-7.3-2026-08-24-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux: (23 commits) swiotlb: remove unused SWIOTLB_FORCE flag dma: swiotlb: handle set_memory_decrypted() failures dma: swiotlb: free dynamic pools from process context dma-direct: rename ret to cpu_addr in alloc helpers dma-direct: select DMA address encoding from __DMA_ATTR_ALLOC_CC_SHARED dma-direct: set decrypted flag for remapped DMA allocations dma-direct: make dma_direct_map_phys() honor DMA_ATTR_CC_SHARED dma-direct: Move dma_direct_map_phys() to dma/direct.c dma-direct: pass attrs to dma_capable() for DMA_ATTR_CC_SHARED checks dma-mapping: make dma_pgprot() honor __DMA_ATTR_ALLOC_CC_SHARED dma: swiotlb: track pool encryption state and honor DMA_ATTR_CC_SHARED dma: swiotlb: pass mapping attributes by reference dma-pool: track decrypted atomic pools and select them via attrs dma-direct: use __DMA_ATTR_ALLOC_CC_SHARED in alloc/free paths dma-mapping: Add internal shared allocation attribute coco: arm64: s390: powerpc: Mark secure guests with CC_ATTR_GUEST_MEM_ENCRYPT dma-direct: swiotlb: handle swiotlb alloc/free outside __dma_direct_alloc_pages s390: Expose protected virtualization through cc_platform_has() swiotlb: Preserve allocation virtual address for dynamic pools dma: free atomic pool pages by physical address ...

xenbus: Unregister reboot notifier on init failure

2026-08-13T10:48:57+00:00

xs_init() registers xs_reboot_nb before initializing XenStore communications and starting xenwatch. If either operation fails, the notifier remains registered and a later initialization attempt can hit a duplicate registration. Check the notifier registration result and unregister it on every subsequent failure path. Fixes: fd8aa9095a95 ("xen: optimize xenbus driver for multiple concurrent xenstore accesses") Signed-off-by: Yuho Choi Reviewed-by: Juergen Gross Signed-off-by: Juergen Gross Message-ID: <20260807032326.940377-1-dbgh9129@gmail.com>

xen: Drop CONFIG_XEN_AUTO_XLATE

2026-08-06T11:18:32+00:00

CONFIG_XEN_AUTO_XLATE is referenced only in code built with CONFIG_XEN enabled. As it is enabled for all architectures supporting Xen, it can be just dropped. Reviewed-by: Stefano Stabellini Signed-off-by: Juergen Gross Message-ID: <20260805082137.1214967-4-jgross@suse.com>

xen: Drop CONFIG_XEN_PVHVM

2026-08-06T11:18:31+00:00

On x86 CONFIG_XEN_PVHVM is now a synonym of CONFIG_XEN. In Xen specific x86 code it can be just dropped, in non-Xen specific x86 code it can be replaced with CONFIG_XEN. In architecture independent code it is used only where CONFIG_XEN is defined, so it can be replaced with CONFIG_X86 there. Reviewed-by: Stefano Stabellini Signed-off-by: Juergen Gross Message-ID: <20260805082137.1214967-3-jgross@suse.com>

x86/xen: fix init of balloon stats again

2026-08-05T12:06:58+00:00

The handling of extra memory regions done in balloon_add_regions() is not correct for PV guests, since the initial target is set to reflect the real memory the system has, not what's described on the memory map, which can be higher if memory != maxmem. Introduce separate logic for addition vs subtraction in balloon_add_regions() and handle extra regions correctly by adding them to the total amount of pages, instead of subtracting from the current and target pages amounts. In the common case PV domU/dom0 and PVH dom0 will use the addition path, since the initial target reflects the real assigned memory. HVM and PVH domUs use the subtraction path, since the target is set based on the amount of memory reported in the memory map, without accounting for released regions. Fixes: 87af633689ce ("x86/xen: fix balloon target initialization for PVH dom0") Fixes: 0949c646d646 ("Partial revert "x86/xen: fix balloon target initialization for PVH dom0"") Signed-off-by: Roger Pau Monné Cc: stable@vger.kernel.org Reviewed-by: Juergen Gross Tested-by: Matthias Goergens Signed-off-by: Juergen Gross Message-ID: <20260805094008.95778-1-roger@xenproject.org>