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Fri, 28 Mar 2025 15:30:41 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay01.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 52SFUb4i26214746 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 28 Mar 2025 15:30:37 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8F9692004D; Fri, 28 Mar 2025 15:30:37 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 1C09520040; Fri, 28 Mar 2025 15:30:37 +0000 (GMT) Received: from localhost (unknown [9.171.72.54]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTPS; Fri, 28 Mar 2025 15:30:37 +0000 (GMT) Date: Fri, 28 Mar 2025 16:30:35 +0100 From: Vasily Gorbik To: Linus Torvalds Cc: Heiko Carstens , Alexander Gordeev , linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org Subject: [GIT PULL] s390 patches for the 6.15 merge window Message-ID: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline X-TM-AS-GCONF: 00 X-Proofpoint-GUID: jDex3tPHNeX906VFVeCH6INaOQ8THr6d X-Proofpoint-ORIG-GUID: jDex3tPHNeX906VFVeCH6INaOQ8THr6d X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-28_07,2025-03-27_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 phishscore=0 bulkscore=0 lowpriorityscore=0 impostorscore=0 adultscore=0 mlxlogscore=999 priorityscore=1501 mlxscore=0 suspectscore=0 malwarescore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2502280000 definitions=main-2503280104 Hello Linus, Please pull s390 changes for 6.15. There are couple of small merge conflicts: With the tip tree (pulled already), reported from linux-next: https://lore.kernel.org/all/20250319155410.3cdf01cb@canb.auug.org.au/ --- +++ b/kernel/sysctl.c @@@ -1828,15 -1888,15 +1828,6 @@@ static const struct ctl_table kern_tabl .proc_handler = proc_dointvec, }, #endif - #if defined(CONFIG_S390) && defined(CONFIG_SMP) -#if defined(CONFIG_ACPI_SLEEP) && defined(CONFIG_X86) -- { - .procname = "spin_retry", - .data = &spin_retry, - .maxlen = sizeof (int), - .procname = "acpi_video_flags", - .data = &acpi_realmode_flags, - .maxlen = sizeof (unsigned long), -- .mode = 0644, - .proc_handler = proc_dointvec, - .proc_handler = proc_doulongvec_minmax, -- }, --#endif #ifdef CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN { .procname = "ignore-unaligned-usertrap", -- And with the s390 fixes (pulled for 6.14-rc6): --- +++ b/arch/s390/kernel/traps.c @@@ -283,12 -257,12 +257,12 @@@ static void __init test_monitor_call(vo if (!IS_ENABLED(CONFIG_BUG)) return; - asm volatile( + asm_inline volatile( " mc 0,0\n" - "0: xgr %0,%0\n" + "0: lhi %[val],0\n" "1:\n" - EX_TABLE(0b,1b) - : "+d" (val)); + EX_TABLE(0b, 1b) + : [val] "+d" (val)); if (!val) panic("Monitor call doesn't work!\n"); } -- Thank you, Vasily The following changes since commit a64dcfb451e254085a7daee5fe51bf22959d52d3: Linux 6.14-rc2 (2025-02-09 12:45:03 -0800) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux.git tags/s390-6.15-1 for you to fetch changes up to 0dafe9968ac7c78c67ee6bb2d970d413fb493b95: s390: Use inline qualifier for all EX_TABLE and ALTERNATIVE inline assemblies (2025-03-18 17:13:51 +0100) ---------------------------------------------------------------- s390 updates for 6.15 merge window - Add sorting of mcount locations at build time - Rework uaccess functions with C exception handling to shorten inline assembly size and enable full inlining. This yields near-optimal code for small constant copies with a ~40kb kernel size increase - Add support for a configurable STRICT_MM_TYPECHECKS which allows to generate better code, but also allows to have type checking for debug builds - Optimize get_lowcore() for common callers with alternatives that nearly revert to the pre-relocated lowcore code, while also slightly reducing syscall entry and exit time - Convert MACHINE_HAS_* checks for single facility tests into cpu_has_* style macros that call test_facility(), and for features with additional conditions, add a new ALT_TYPE_FEATURE alternative to provide a static branch via alternative patching. Also, move machine feature detection to the decompressor for early patching and add debugging functionality to easily show which alternatives are patched - Add exception table support to early boot / startup code to get rid of the open coded exception handling - Use asm_inline for all inline assemblies with EX_TABLE or ALTERNATIVE to ensure correct inlining and unrolling decisions - Remove 2k page table leftovers now that s390 has been switched to always allocate 4k page tables - Split kfence pool into 4k mappings in arch_kfence_init_pool() and remove the architecture-specific kfence_split_mapping() - Use READ_ONCE_NOCHECK() in regs_get_kernel_stack_nth() to silence spurious KASAN warnings from opportunistic ftrace argument tracing - Force __atomic_add_const() variants on s390 to always return void, ensuring compile errors for improper usage - Remove s390's ioremap_wt() and pgprot_writethrough() due to mismatched semantics and lack of known users, relying on asm-generic fallbacks - Signal eventfd in vfio-ap to notify userspace when the guest AP configuration changes, including during mdev removal - Convert mdev_types from an array to a pointer in vfio-ccw and vfio-ap drivers to avoid fake flex array confusion - Cleanup trap code - Remove references to the outdated linux390@de.ibm.com address - Other various small fixes and improvements all over the code ---------------------------------------------------------------- Halil Pasic (2): s390/vfio-ap: Make mdev_types not look like a fake flex array s390/vfio-ccw: Make mdev_types not look like a fake flex array Haoxiang Li (2): s390/sclp: Add check for get_zeroed_page() s390/tty: Fix a potential memory leak bug Heiko Carstens (63): s390/cio: Remove outdated email address s390: Sort mcount locations at build time s390/mm: Remove have_store_indication static key s390/uaccess: Shorten raw_copy_from_user() / raw_copy_to_user() inline assemblies s390/uaccess: Separate key uaccess functions s390/uaccess: Define INLINE_COPY_FROM_USER and INLINE_COPY_TO_USER s390/uaccess: Optimize raw_copy_from_user() / raw_copy_to_user() for constant sizes s390/uaccess: Inline __clear_user() s390/zfcp: Remove outdated email address s390/cpufeature: Convert MACHINE_HAS_SEQ_INSN to cpu_has_seq_insn() s390/cpufeature: Convert MACHINE_HAS_RDP to cpu_has_rdp() s390/cpufeature: Convert MACHINE_HAS_GS to cpu_has_gs() s390/cpufeature: Convert MACHINE_HAS_NX to cpu_has_nx() s390/cpufeature: Convert MACHINE_HAS_TLB_LC to cpu_has_tlb_lc() s390/cpufeature: Convert MACHINE_HAS_TOPOLOGY to cpu_has_topology() s390/cpufeature: Convert MACHINE_HAS_EDAT1 to cpu_has_edat1() s390/cpufeature: Convert MACHINE_HAS_EDAT2 to cpu_has_edat2() s390/cpufeature: Convert MACHINE_HAS_IDTE to cpu_has_idte() s390: Static branches for machine features infrastructure s390/lowcore: Convert relocated lowcore alternative to machine feature s390/pci: Get rid of MACHINE_HAS_PCI_MIO s390/time: Convert MACHINE_HAS_SCC to machine_has_scc() s390/tlb: Convert MACHINE_HAS_TLB_GUEST to machine_has_tlb_guest() s390/tx: Convert MACHINE_HAS_TE to machine_has_tx() s390/kvm: Convert MACHINE_HAS_ESOP to machine_has_esop() s390/diag: Convert MACHINE_HAS_DIAG9C to machine_has_diag9c() s390/sysinfo: Remove exception handling from __stsi() s390/sysinfo: Cleanup stsi() inline assembly s390/sysinfo: Move stsi() to header file s390: Convert MACHINE_IS_[LPAR|VM|KVM], etc, machine_is_[lpar|vm|kvm]() s390/vx: Convert cpu_has_vx() to cpu feature function s390/bear: Convert cpu_has_bear() to cpu feature function s390/setup: Add decompressor_handled_param() wrapper s390/alternatives: Add debug functionality s390: Use system header file variant of include directive s390/asm-offsets: Rename __LC_PGM_INT_CODE s390/boot: Pass pt_regs to program check handler s390/boot: Add exception table support s390/boot: Convert cmma_test_essa() to extable s390/boot: Convert __diag260() to extable s390/boot: Convert tprot() to extable s390/boot: Convert diag500_storage_limit() to extable s390/boot: Convert detect_diag9c() to extable s390/boot: Convert __diag308() to extable s390/traps: Cleanup get_user() handling in illegal_op() s390/traps: Use pr_emerg() instead of printk() s390/traps: Get rid of superfluous cpu_has_vx() check s390/traps: Cleanup coding style s390/atomic_ops: Let __atomic_add_const() variants always return void s390/mm: Use pgprot_val() instead of open coding s390/mm: Convert pgprot_val() into function s390/mm: Convert pgste_val() into function s390/mm: Add configurable STRICT_MM_TYPECHECKS s390/lowcore: Use inline qualifier for get_lowcore() inline assembly s390/current: Implement current with inline assembly s390/smp: Implement raw_smp_processor_id() with inline assembly s390/spinlock: Implement SPINLOCK_LOCKVAL with inline assembly s390/syscall: Merge __do_syscall() and do_syscall() s390/lowcore: Use lghi instead llilh to clear register s390/tlb: Use mm_has_pgste() instead of mm_alloc_pgste() s390: Remove 2k vs 4k page table leftovers s390/sysctl: Remove "vm/allocate_pgste" sysctl s390: Use inline qualifier for all EX_TABLE and ALTERNATIVE inline assemblies Niklas Schnelle (1): s390: Remove ioremap_wt() and pgprot_writethrough() Qasim Ijaz (1): s390/mm: Simplify gap clamping in mmap_base() using clamp() Rorie Reyes (2): s390/vfio-ap: Signal eventfd when guest AP configuration is changed s390/vfio-ap: Notify userspace that guest's AP config changed when mdev removed Sven Schnelle (2): s390/traps: Change stack overflow message s390/syscall: Simplify syscall_get_arguments() Thorsten Blum (1): s390/vfio-ap: Fix indentation in vfio_ap_mdev_ioctl() Vasily Gorbik (3): Merge branch 'strict-mm-typechecks-support' into features s390/ptrace: Avoid KASAN false positives in regs_get_kernel_stack_nth() s390/kfence: Split kfence pool into 4k mappings in arch_kfence_init_pool() WangYuli (1): s390/boot: Ignore vmlinux.map joel granados (1): s390: Move s390 sysctls into their own file under arch/s390 arch/s390/Kconfig | 2 +- arch/s390/Kconfig.debug | 10 ++ arch/s390/boot/.gitignore | 1 + arch/s390/boot/Makefile | 2 +- arch/s390/boot/alternative.c | 135 +++++++++++++++ arch/s390/boot/boot.h | 8 +- arch/s390/boot/head.S | 25 +-- arch/s390/boot/ipl_parm.c | 33 ++-- arch/s390/boot/{pgm_check_info.c => pgm_check.c} | 48 +++-- arch/s390/boot/physmem_info.c | 84 +++------ arch/s390/boot/printk.c | 4 +- arch/s390/boot/startup.c | 114 ++++++++---- arch/s390/boot/vmem.c | 8 +- arch/s390/boot/vmlinux.lds.S | 2 +- arch/s390/configs/debug_defconfig | 2 + arch/s390/configs/mmtypes.config | 2 + arch/s390/hypfs/hypfs_diag0c.c | 5 +- arch/s390/hypfs/hypfs_diag_fs.c | 3 +- arch/s390/hypfs/hypfs_vm.c | 5 +- arch/s390/hypfs/inode.c | 5 +- arch/s390/include/asm/abs_lowcore.h | 7 - arch/s390/include/asm/alternative.h | 11 +- arch/s390/include/asm/appldata.h | 3 +- arch/s390/include/asm/asm-extable.h | 8 + arch/s390/include/asm/atomic_ops.h | 8 +- arch/s390/include/asm/cpu_mf.h | 6 +- arch/s390/include/asm/cpufeature.h | 14 ++ arch/s390/include/asm/current.h | 18 +- arch/s390/include/asm/diag.h | 2 +- arch/s390/include/asm/elf.h | 32 ---- arch/s390/include/asm/fpu.h | 7 +- arch/s390/include/asm/hugetlb.h | 3 +- arch/s390/include/asm/io.h | 2 - arch/s390/include/asm/kfence.h | 17 +- arch/s390/include/asm/lowcore.h | 18 +- arch/s390/include/asm/machine.h | 103 +++++++++++ arch/s390/include/asm/mmu.h | 3 - arch/s390/include/asm/mmu_context.h | 3 - arch/s390/include/asm/page.h | 71 ++++---- arch/s390/include/asm/pgalloc.h | 1 - arch/s390/include/asm/pgtable.h | 23 ++- arch/s390/include/asm/processor.h | 6 +- arch/s390/include/asm/ptrace.h | 2 - arch/s390/include/asm/sclp.h | 1 + arch/s390/include/asm/setup.h | 42 ----- arch/s390/include/asm/smp.h | 24 ++- arch/s390/include/asm/spinlock.h | 20 ++- arch/s390/include/asm/syscall.h | 6 +- arch/s390/include/asm/sysinfo.h | 28 ++- arch/s390/include/asm/thread_info.h | 2 - arch/s390/include/asm/timex.h | 5 +- arch/s390/include/asm/tlb.h | 2 +- arch/s390/include/asm/tlbflush.h | 8 +- arch/s390/include/asm/uaccess.h | 212 ++++++++++------------- arch/s390/include/asm/word-at-a-time.h | 2 +- arch/s390/kernel/abs_lowcore.c | 1 - arch/s390/kernel/alternative.c | 65 ++++++- arch/s390/kernel/asm-offsets.c | 5 +- arch/s390/kernel/cert_store.c | 2 +- arch/s390/kernel/diag/diag.c | 4 +- arch/s390/kernel/early.c | 116 ++----------- arch/s390/kernel/entry.S | 19 +- arch/s390/kernel/entry.h | 2 +- arch/s390/kernel/ftrace.c | 11 +- arch/s390/kernel/guarded_storage.c | 3 +- arch/s390/kernel/head64.S | 4 +- arch/s390/kernel/hiperdispatch.c | 3 +- arch/s390/kernel/ipl.c | 23 +-- arch/s390/kernel/irq.c | 8 +- arch/s390/kernel/kprobes.c | 5 +- arch/s390/kernel/machine_kexec.c | 6 +- arch/s390/kernel/nmi.c | 9 +- arch/s390/kernel/processor.c | 10 +- arch/s390/kernel/ptrace.c | 25 +-- arch/s390/kernel/setup.c | 23 +-- arch/s390/kernel/smp.c | 8 +- arch/s390/kernel/syscall.c | 51 ++---- arch/s390/kernel/sysinfo.c | 48 +---- arch/s390/kernel/time.c | 4 +- arch/s390/kernel/topology.c | 19 +- arch/s390/kernel/traps.c | 111 +++++------- arch/s390/kvm/interrupt.c | 6 +- arch/s390/kvm/kvm-s390.c | 18 +- arch/s390/lib/spinlock.c | 31 +++- arch/s390/lib/uaccess.c | 122 +++++++++---- arch/s390/mm/dump_pagetables.c | 8 +- arch/s390/mm/extable.c | 47 +++++ arch/s390/mm/extmem.c | 9 +- arch/s390/mm/fault.c | 33 ++-- arch/s390/mm/gmap.c | 19 +- arch/s390/mm/hugetlbpage.c | 7 +- arch/s390/mm/init.c | 6 +- arch/s390/mm/mmap.c | 9 +- arch/s390/mm/pageattr.c | 9 +- arch/s390/mm/pfault.c | 4 +- arch/s390/mm/pgalloc.c | 25 --- arch/s390/mm/pgtable.c | 88 +++++----- arch/s390/mm/vmem.c | 9 +- arch/s390/pci/pci.c | 5 +- arch/s390/pci/pci_clp.c | 4 +- arch/s390/pci/pci_insn.c | 12 +- arch/s390/pci/pci_mmio.c | 6 +- drivers/s390/block/dasd.c | 3 +- drivers/s390/block/dasd_devmap.c | 3 +- drivers/s390/block/dasd_diag.c | 5 +- drivers/s390/block/dasd_eckd.c | 3 +- drivers/s390/char/con3215.c | 3 +- drivers/s390/char/con3270.c | 3 +- drivers/s390/char/diag_ftp.c | 2 +- drivers/s390/char/hmcdrv_ftp.c | 6 +- drivers/s390/char/monreader.c | 3 +- drivers/s390/char/monwriter.c | 3 +- drivers/s390/char/raw3270.c | 3 +- drivers/s390/char/sclp.h | 9 +- drivers/s390/char/sclp_cmd.c | 3 +- drivers/s390/char/sclp_con.c | 17 ++ drivers/s390/char/sclp_early.c | 6 +- drivers/s390/char/sclp_early_core.c | 13 ++ drivers/s390/char/sclp_tty.c | 16 +- drivers/s390/char/vmcp.c | 5 +- drivers/s390/char/vmlogrdr.c | 3 +- drivers/s390/char/vmur.c | 3 +- drivers/s390/cio/crw.c | 5 +- drivers/s390/cio/device_id.c | 3 +- drivers/s390/cio/ioasm.c | 8 +- drivers/s390/cio/vfio_ccw_drv.c | 6 +- drivers/s390/cio/vfio_ccw_private.h | 2 +- drivers/s390/crypto/ap_bus.c | 3 +- drivers/s390/crypto/vfio_ap_ops.c | 68 +++++++- drivers/s390/crypto/vfio_ap_private.h | 4 +- drivers/s390/net/qeth_l2_main.c | 3 +- drivers/s390/net/smsgiucv.c | 3 +- drivers/s390/net/smsgiucv_app.c | 3 +- drivers/s390/scsi/zfcp_aux.c | 2 +- drivers/tty/hvc/hvc_iucv.c | 7 +- drivers/watchdog/diag288_wdt.c | 7 +- include/uapi/linux/vfio.h | 1 + kernel/sysctl.c | 18 -- lib/raid6/s390vx.uc | 1 + net/iucv/af_iucv.c | 3 +- net/iucv/iucv.c | 3 +- 141 files changed, 1446 insertions(+), 1096 deletions(-) rename arch/s390/boot/{pgm_check_info.c => pgm_check.c} (66%) create mode 100644 arch/s390/configs/mmtypes.config create mode 100644 arch/s390/include/asm/machine.h diff --cc kernel/sysctl.c index 88b83fb504c8,6c70fb3b2376..64acbfdb5e8a --- a/kernel/sysctl.c diff --cc arch/s390/kernel/traps.c index b746213d3110,9705929d256f..19687dab32f7 --- a/arch/s390/kernel/traps.c