mirror of https://github.com/torvalds/linux.git
2799 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
|
|
87dbc209ea |
local64.h: make <asm/local64.h> mandatory
Make <asm-generic/local64.h> mandatory in include/asm-generic/Kbuild and remove all arch/*/include/asm/local64.h arch-specific files since they only #include <asm-generic/local64.h>. This fixes build errors on arch/c6x/ and arch/nios2/ for block/blk-iocost.c. Build-tested on 21 of 25 arch-es. (tools problems on the others) Yes, we could even rename <asm-generic/local64.h> to <linux/local64.h> and change all #includes to use <linux/local64.h> instead. Link: https://lkml.kernel.org/r/20201227024446.17018-1-rdunlap@infradead.org Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Suggested-by: Christoph Hellwig <hch@infradead.org> Reviewed-by: Masahiro Yamada <masahiroy@kernel.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Aurelien Jacquiot <jacquiot.aurelien@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
|
6a447b0e31 |
ARM:
* PSCI relay at EL2 when "protected KVM" is enabled * New exception injection code * Simplification of AArch32 system register handling * Fix PMU accesses when no PMU is enabled * Expose CSV3 on non-Meltdown hosts * Cache hierarchy discovery fixes * PV steal-time cleanups * Allow function pointers at EL2 * Various host EL2 entry cleanups * Simplification of the EL2 vector allocation s390: * memcg accouting for s390 specific parts of kvm and gmap * selftest for diag318 * new kvm_stat for when async_pf falls back to sync x86: * Tracepoints for the new pagetable code from 5.10 * Catch VFIO and KVM irqfd events before userspace * Reporting dirty pages to userspace with a ring buffer * SEV-ES host support * Nested VMX support for wait-for-SIPI activity state * New feature flag (AVX512 FP16) * New system ioctl to report Hyper-V-compatible paravirtualization features Generic: * Selftest improvements -----BEGIN PGP SIGNATURE----- iQFIBAABCAAyFiEE8TM4V0tmI4mGbHaCv/vSX3jHroMFAl/bdL4UHHBib256aW5p QHJlZGhhdC5jb20ACgkQv/vSX3jHroNgQQgAnTH6rhXa++Zd5F0EM2NwXwz3iEGb lOq1DZSGjs6Eekjn8AnrWbmVQr+CBCuGU9MrxpSSzNDK/awryo3NwepOWAZw9eqk BBCVwGBbJQx5YrdgkGC0pDq2sNzcpW/VVB3vFsmOxd9eHblnuKSIxEsCCXTtyqIt XrLpQ1UhvI4yu102fDNhuFw2EfpzXm+K0Lc0x6idSkdM/p7SyeOxiv8hD4aMr6+G bGUQuMl4edKZFOWFigzr8NovQAvDHZGrwfihu2cLRYKLhV97QuWVmafv/yYfXcz2 drr+wQCDNzDOXyANnssmviazrhOX0QmTAhbIXGGX/kTxYKcfPi83ZLoI3A== =ISud -----END PGP SIGNATURE----- Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm Pull KVM updates from Paolo Bonzini: "Much x86 work was pushed out to 5.12, but ARM more than made up for it. ARM: - PSCI relay at EL2 when "protected KVM" is enabled - New exception injection code - Simplification of AArch32 system register handling - Fix PMU accesses when no PMU is enabled - Expose CSV3 on non-Meltdown hosts - Cache hierarchy discovery fixes - PV steal-time cleanups - Allow function pointers at EL2 - Various host EL2 entry cleanups - Simplification of the EL2 vector allocation s390: - memcg accouting for s390 specific parts of kvm and gmap - selftest for diag318 - new kvm_stat for when async_pf falls back to sync x86: - Tracepoints for the new pagetable code from 5.10 - Catch VFIO and KVM irqfd events before userspace - Reporting dirty pages to userspace with a ring buffer - SEV-ES host support - Nested VMX support for wait-for-SIPI activity state - New feature flag (AVX512 FP16) - New system ioctl to report Hyper-V-compatible paravirtualization features Generic: - Selftest improvements" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (171 commits) KVM: SVM: fix 32-bit compilation KVM: SVM: Add AP_JUMP_TABLE support in prep for AP booting KVM: SVM: Provide support to launch and run an SEV-ES guest KVM: SVM: Provide an updated VMRUN invocation for SEV-ES guests KVM: SVM: Provide support for SEV-ES vCPU loading KVM: SVM: Provide support for SEV-ES vCPU creation/loading KVM: SVM: Update ASID allocation to support SEV-ES guests KVM: SVM: Set the encryption mask for the SVM host save area KVM: SVM: Add NMI support for an SEV-ES guest KVM: SVM: Guest FPU state save/restore not needed for SEV-ES guest KVM: SVM: Do not report support for SMM for an SEV-ES guest KVM: x86: Update __get_sregs() / __set_sregs() to support SEV-ES KVM: SVM: Add support for CR8 write traps for an SEV-ES guest KVM: SVM: Add support for CR4 write traps for an SEV-ES guest KVM: SVM: Add support for CR0 write traps for an SEV-ES guest KVM: SVM: Add support for EFER write traps for an SEV-ES guest KVM: SVM: Support string IO operations for an SEV-ES guest KVM: SVM: Support MMIO for an SEV-ES guest KVM: SVM: Create trace events for VMGEXIT MSR protocol processing KVM: SVM: Create trace events for VMGEXIT processing ... |
|
|
|
a087241716 |
- Always initialize kernel stack backchain when entering the kernel, so
that unwinding works properly.
- Fix stack unwinder test case to avoid rare interrupt stack corruption.
- Simplify udelay() and just let it busy loop instead of implementing a
complex logic.
- arch_cpu_idle() cleanup.
- Some other minor improvements.
-----BEGIN PGP SIGNATURE-----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=1l0g
-----END PGP SIGNATURE-----
Merge tag 's390-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Heiko Carstens:
"This is mainly to decouple udelay() and arch_cpu_idle() and simplify
both of them.
Summary:
- Always initialize kernel stack backchain when entering the kernel,
so that unwinding works properly.
- Fix stack unwinder test case to avoid rare interrupt stack
corruption.
- Simplify udelay() and just let it busy loop instead of implementing
a complex logic.
- arch_cpu_idle() cleanup.
- Some other minor improvements"
* tag 's390-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/zcrypt: convert comma to semicolon
s390/idle: allow arch_cpu_idle() to be kprobed
s390/idle: remove raw_local_irq_save()/restore() from arch_cpu_idle()
s390/idle: merge enabled_wait() and arch_cpu_idle()
s390/delay: remove udelay_simple()
s390/irq: select HAVE_IRQ_EXIT_ON_IRQ_STACK
s390/delay: simplify udelay
s390/test_unwind: use timer instead of udelay
s390/test_unwind: fix CALL_ON_STACK tests
s390: make calls to TRACE_IRQS_OFF/TRACE_IRQS_ON balanced
s390: always clear kernel stack backchain before calling functions
|
|
|
|
09c0796adf |
Tracing updates for 5.11
The major update to this release is that there's a new arch config option called: CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS. Currently, only x86_64 enables it. All the ftrace callbacks now take a struct ftrace_regs instead of a struct pt_regs. If the architecture has HAVE_DYNAMIC_FTRACE_WITH_ARGS enabled, then the ftrace_regs will have enough information to read the arguments of the function being traced, as well as access to the stack pointer. This way, if a user (like live kernel patching) only cares about the arguments, then it can avoid using the heavier weight "regs" callback, that puts in enough information in the struct ftrace_regs to simulate a breakpoint exception (needed for kprobes). New config option that audits the timestamps of the ftrace ring buffer at most every event recorded. The "check_buffer()" calls will conflict with mainline, because I purposely added the check without including the fix that it caught, which is in mainline. Running a kernel built from the commit of the added check will trigger it. Ftrace recursion protection has been cleaned up to move the protection to the callback itself (this saves on an extra function call for those callbacks). Perf now handles its own RCU protection and does not depend on ftrace to do it for it (saving on that extra function call). New debug option to add "recursed_functions" file to tracefs that lists all the places that triggered the recursion protection of the function tracer. This will show where things need to be fixed as recursion slows down the function tracer. The eval enum mapping updates done at boot up are now offloaded to a work queue, as it caused a noticeable pause on slow embedded boards. Various clean ups and last minute fixes. -----BEGIN PGP SIGNATURE----- iIoEABYIADIWIQRRSw7ePDh/lE+zeZMp5XQQmuv6qgUCX9uq8xQccm9zdGVkdEBn b29kbWlzLm9yZwAKCRAp5XQQmuv6qtrwAQCHevqWMjKc1Q76bnCgwB0AbFKB6vqy 5b6g/co5+ihv8wD/eJPWlZMAt97zTVW7bdp5qj/GTiCDbAsODMZ597LsxA0= =rZEz -----END PGP SIGNATURE----- Merge tag 'trace-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace Pull tracing updates from Steven Rostedt: "The major update to this release is that there's a new arch config option called CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS. Currently, only x86_64 enables it. All the ftrace callbacks now take a struct ftrace_regs instead of a struct pt_regs. If the architecture has HAVE_DYNAMIC_FTRACE_WITH_ARGS enabled, then the ftrace_regs will have enough information to read the arguments of the function being traced, as well as access to the stack pointer. This way, if a user (like live kernel patching) only cares about the arguments, then it can avoid using the heavier weight "regs" callback, that puts in enough information in the struct ftrace_regs to simulate a breakpoint exception (needed for kprobes). A new config option that audits the timestamps of the ftrace ring buffer at most every event recorded. Ftrace recursion protection has been cleaned up to move the protection to the callback itself (this saves on an extra function call for those callbacks). Perf now handles its own RCU protection and does not depend on ftrace to do it for it (saving on that extra function call). New debug option to add "recursed_functions" file to tracefs that lists all the places that triggered the recursion protection of the function tracer. This will show where things need to be fixed as recursion slows down the function tracer. The eval enum mapping updates done at boot up are now offloaded to a work queue, as it caused a noticeable pause on slow embedded boards. Various clean ups and last minute fixes" * tag 'trace-v5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace: (33 commits) tracing: Offload eval map updates to a work queue Revert: "ring-buffer: Remove HAVE_64BIT_ALIGNED_ACCESS" ring-buffer: Add rb_check_bpage in __rb_allocate_pages ring-buffer: Fix two typos in comments tracing: Drop unneeded assignment in ring_buffer_resize() tracing: Disable ftrace selftests when any tracer is running seq_buf: Avoid type mismatch for seq_buf_init ring-buffer: Fix a typo in function description ring-buffer: Remove obsolete rb_event_is_commit() ring-buffer: Add test to validate the time stamp deltas ftrace/documentation: Fix RST C code blocks tracing: Clean up after filter logic rewriting tracing: Remove the useless value assignment in test_create_synth_event() livepatch: Use the default ftrace_ops instead of REGS when ARGS is available ftrace/x86: Allow for arguments to be passed in to ftrace_regs by default ftrace: Have the callbacks receive a struct ftrace_regs instead of pt_regs MAINTAINERS: assign ./fs/tracefs to TRACING tracing: Fix some typos in comments ftrace: Remove unused varible 'ret' ring-buffer: Add recording of ring buffer recursion into recursed_functions ... |
|
|
|
69f637c335 |
for-5.11/drivers-2020-12-14
-----BEGIN PGP SIGNATURE-----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=ayp2
-----END PGP SIGNATURE-----
Merge tag 'for-5.11/drivers-2020-12-14' of git://git.kernel.dk/linux-block
Pull block driver updates from Jens Axboe:
"Nothing major in here:
- NVMe pull request from Christoph:
- nvmet passthrough improvements (Chaitanya Kulkarni)
- fcloop error injection support (James Smart)
- read-only support for zoned namespaces without Zone Append
(Javier González)
- improve some error message (Minwoo Im)
- reject I/O to offline fabrics namespaces (Victor Gladkov)
- PCI queue allocation cleanups (Niklas Schnelle)
- remove an unused allocation in nvmet (Amit Engel)
- a Kconfig spelling fix (Colin Ian King)
- nvme_req_qid simplication (Baolin Wang)
- MD pull request from Song:
- Fix race condition in md_ioctl() (Dae R. Jeong)
- Initialize read_slot properly for raid10 (Kevin Vigor)
- Code cleanup (Pankaj Gupta)
- md-cluster resync/reshape fix (Zhao Heming)
- Move null_blk into its own directory (Damien Le Moal)
- null_blk zone and discard improvements (Damien Le Moal)
- bcache race fix (Dongsheng Yang)
- Set of rnbd fixes/improvements (Gioh Kim, Guoqing Jiang, Jack Wang,
Lutz Pogrell, Md Haris Iqbal)
- lightnvm NULL pointer deref fix (tangzhenhao)
- sr in_interrupt() removal (Sebastian Andrzej Siewior)
- FC endpoint security support for s390/dasd (Jan Höppner, Sebastian
Ott, Vineeth Vijayan). From the s390 arch guys, arch bits included
as it made it easier for them to funnel the feature through the
block driver tree.
- Follow up fixes (Colin Ian King)"
* tag 'for-5.11/drivers-2020-12-14' of git://git.kernel.dk/linux-block: (64 commits)
block: drop dead assignments in loop_init()
sr: Remove in_interrupt() usage in sr_init_command().
sr: Switch the sector size back to 2048 if sr_read_sector() changed it.
cdrom: Reset sector_size back it is not 2048.
drivers/lightnvm: fix a null-ptr-deref bug in pblk-core.c
null_blk: Move driver into its own directory
null_blk: Allow controlling max_hw_sectors limit
null_blk: discard zones on reset
null_blk: cleanup discard handling
null_blk: Improve implicit zone close
null_blk: improve zone locking
block: Align max_hw_sectors to logical blocksize
null_blk: Fail zone append to conventional zones
null_blk: Fix zone size initialization
bcache: fix race between setting bdev state to none and new write request direct to backing
block/rnbd: fix a null pointer dereference on dev->blk_symlink_name
block/rnbd-clt: Dynamically alloc buffer for pathname & blk_symlink_name
block/rnbd: call kobject_put in the failure path
Documentation/ABI/rnbd-srv: add document for force_close
block/rnbd-srv: close a mapped device from server side.
...
|
|
|
|
005b2a9dc8 |
tif-task_work.arch-2020-12-14
-----BEGIN PGP SIGNATURE----- iQJEBAABCAAuFiEEwPw5LcreJtl1+l5K99NY+ylx4KYFAl/YJxsQHGF4Ym9lQGtl cm5lbC5kawAKCRD301j7KXHgpjpyEACBdW+YjenjTbkUPeEXzQgkBkTZUYw3g007 DPcUT1g8PQZXYXlQvBKCvGhhIr7/KVcjepKoowiNQfBNGcIPJTVopW58nzpqAfTQ goI2WYGn5EKFFKBPvtH04cJD/Wo8muXdxynKtqyZbnGGgZjQxPrE259b8dpHjBSR 6L7HHkk0D1oU/5b6h6Ocpg9mc/0iIUCZylySAYY3eGO0JaVPJaXgZSJZYgHxCHll Lb+/y/fXdtm/0PmQ3ko0ev54g3yEWqZIX0NsZW1asrButIy+KLzQ2Mz1xFLFDMag prtIfwb8tzgc4dFPY090C/azjCh5CPpxqYS6FkRwS0p86n6OhkyXrqfily5Hs4/B NC7CBPBSH/j+NKUK7CYZcpTzTpxPjUr9p0anUdlvMJz8FhTb/3YEEZ1UTeWOeHmk Yo5SxnFghLeZZeZ1ok6rdymnVa7WEX12SCLGQX31BB2mld0tNbKb4b+FsBF6OUMk IUaX6OjwDFVRaysC88BQ4hjcIP1HxsViG4/VZDX15gjAAH2Pvb+7tev+lcDcOhjz TCD4GNFspTFzRhh9nT7oxQ679qCh9G9zHbzuIRewnrS6iqvo5SJQB3dR2yrWZRRH ySkQFiHpYOlnLJYv0jg9COlGwo2FUdcvKhCvkjQKKBz48rzW/IC0LwKdRQWZDFk3 FKGzP/NBig== =cadT -----END PGP SIGNATURE----- Merge tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block Pull TIF_NOTIFY_SIGNAL updates from Jens Axboe: "This sits on top of of the core entry/exit and x86 entry branch from the tip tree, which contains the generic and x86 parts of this work. Here we convert the rest of the archs to support TIF_NOTIFY_SIGNAL. With that done, we can get rid of JOBCTL_TASK_WORK from task_work and signal.c, and also remove a deadlock work-around in io_uring around knowing that signal based task_work waking is invoked with the sighand wait queue head lock. The motivation for this work is to decouple signal notify based task_work, of which io_uring is a heavy user of, from sighand. The sighand lock becomes a huge contention point, particularly for threaded workloads where it's shared between threads. Even outside of threaded applications it's slower than it needs to be. Roman Gershman <romger@amazon.com> reported that his networked workload dropped from 1.6M QPS at 80% CPU to 1.0M QPS at 100% CPU after io_uring was changed to use TIF_NOTIFY_SIGNAL. The time was all spent hammering on the sighand lock, showing 57% of the CPU time there [1]. There are further cleanups possible on top of this. One example is TIF_PATCH_PENDING, where a patch already exists to use TIF_NOTIFY_SIGNAL instead. Hopefully this will also lead to more consolidation, but the work stands on its own as well" [1] https://github.com/axboe/liburing/issues/215 * tag 'tif-task_work.arch-2020-12-14' of git://git.kernel.dk/linux-block: (28 commits) io_uring: remove 'twa_signal_ok' deadlock work-around kernel: remove checking for TIF_NOTIFY_SIGNAL signal: kill JOBCTL_TASK_WORK io_uring: JOBCTL_TASK_WORK is no longer used by task_work task_work: remove legacy TWA_SIGNAL path sparc: add support for TIF_NOTIFY_SIGNAL riscv: add support for TIF_NOTIFY_SIGNAL nds32: add support for TIF_NOTIFY_SIGNAL ia64: add support for TIF_NOTIFY_SIGNAL h8300: add support for TIF_NOTIFY_SIGNAL c6x: add support for TIF_NOTIFY_SIGNAL alpha: add support for TIF_NOTIFY_SIGNAL xtensa: add support for TIF_NOTIFY_SIGNAL arm: add support for TIF_NOTIFY_SIGNAL microblaze: add support for TIF_NOTIFY_SIGNAL hexagon: add support for TIF_NOTIFY_SIGNAL csky: add support for TIF_NOTIFY_SIGNAL openrisc: add support for TIF_NOTIFY_SIGNAL sh: add support for TIF_NOTIFY_SIGNAL um: add support for TIF_NOTIFY_SIGNAL ... |
|
|
|
e994cc240a |
seccomp updates for v5.11-rc1
- Improve seccomp performance via constant-action bitmaps (YiFei Zhu & Kees Cook)
- Fix bogus __user annotations (Jann Horn)
- Add missed CONFIG for improved selftest coverage (Mickaël Salaün)
-----BEGIN PGP SIGNATURE-----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=jJwG
-----END PGP SIGNATURE-----
Merge tag 'seccomp-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull seccomp updates from Kees Cook:
"The major change here is finally gaining seccomp constant-action
bitmaps, which internally reduces the seccomp overhead for many
real-world syscall filters to O(1), as discussed at Plumbers this
year.
- Improve seccomp performance via constant-action bitmaps (YiFei Zhu
& Kees Cook)
- Fix bogus __user annotations (Jann Horn)
- Add missed CONFIG for improved selftest coverage (Mickaël Salaün)"
* tag 'seccomp-v5.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
selftests/seccomp: Update kernel config
seccomp: Remove bogus __user annotations
seccomp/cache: Report cache data through /proc/pid/seccomp_cache
xtensa: Enable seccomp architecture tracking
sh: Enable seccomp architecture tracking
s390: Enable seccomp architecture tracking
riscv: Enable seccomp architecture tracking
powerpc: Enable seccomp architecture tracking
parisc: Enable seccomp architecture tracking
csky: Enable seccomp architecture tracking
arm: Enable seccomp architecture tracking
arm64: Enable seccomp architecture tracking
selftests/seccomp: Compare bitmap vs filter overhead
x86: Enable seccomp architecture tracking
seccomp/cache: Add "emulator" to check if filter is constant allow
seccomp/cache: Lookup syscall allowlist bitmap for fast path
|
|
|
|
44292c8684 |
s390/idle: merge enabled_wait() and arch_cpu_idle()
The only caller of enabled_wait() besides arch_cpu_idle() was udelay(). Since that call doesn't exist anymore, merge enabled_wait() and arch_cpu_idle(). Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
e0d62dcb20 |
s390/delay: remove udelay_simple()
udelay_simple() callers can make use of the now simplified udelay() implementation. No need to keep it. Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
dd6cfe5532 |
s390/delay: simplify udelay
udelay is implemented by using quite subtle details to make it possible to load an idle psw and waiting for an interrupt even in irq context or when interrupts are disabled. Also handling (or better: no handling) of softirqs is taken into account. All this is done to optimize for something which should in normal circumstances never happen: calling udelay to busy wait. Therefore get rid of the whole complexity and just busy loop like other architectures are doing it also. It could have been possible to use diag 0x44 instead of cpu_relax() in the busy loop, however we have seen too many bad things happen with diag 0x44 that it seems to be better to simply busy loop. Also note that with this new implementation kernel preemption does work when within the udelay loop. This did not work before. To get a feeling what the former code optimizes for: IPL'ing a kernel with 'defconfig' and afterwards compiling a kernel ends with a total of zero udelay calls. Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
157807123c |
asm-generic: mmu-context cleanup
This is a cleanup series from Nicholas Piggin, preparing for later changes. The asm/mmu_context.h header are generalized and common code moved to asm-gneneric/mmu_context.h. This saves a bit of code and makes it easier to change in the future. Signed-off-by: Arnd Bergmann <arnd@arndb.de> -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEo6/YBQwIrVS28WGKmmx57+YAGNkFAl/Y1LsACgkQmmx57+YA GNm6kBAAq4/n6nuNnh6b9LhjXaZRG75gEyW7JvHl8KE5wmZHwDHqbwiQgU1b3lUs JJGbfKqi5ASKxNg6MpfYodmCOqeTUUYG0FUCb6lMhcxxMdfLTLYBvkNd6Y143M+T boi5b/iz+OUQdNPzlVeSsUEVsD59FIXmP/GhscWZN9VAyf/aLV2MDBIOhrDSJlPo ObexnP0Iw1E1NRQYDQ6L2dKTHa6XmHyUtw40ABPmd/6MSd1S+D+j3FGg+CYmvnzG k9g8FbNby8xtUfc0pZV4W/322WN8cDFF9bc04eTDZiAv1bk9lmfvWJ2bWjs3s2qt RO/suiZEOAta/WUX9vVLgYn2td00ef+AyjNUgffiUfvQfl++fiCDFTGl+MoCLjbh xQUPcRuRdED7bMKNrC0CcDOSwWEBWVXvkU/szBLDeE1sPjXzGQ80q1Y72k9y961I mqg7FrHqjZsxT9luXMAzClHNhXAtvehkJZBIdHlFok83EFoTQp48Da4jaDuOOhlq p/lkPJWOHegIQMWtGwRyGmG1qzil7b/QBNAPLgu9pF4TA+ySRBEB2BOr2jRSkj6N mNTHQbSYxBoktdt+VhtrSsxR+i8lwlegx+RNRFmKK3VH5da2nfiBaOY7zBQQHxCK yxQvXvsljSVpfkFKLc/S2nLQL1zTkRfFKV1Xmd3+3owR+EoqM60= =NpMX -----END PGP SIGNATURE----- Merge tag 'asm-generic-mmu-context-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic mmu-context cleanup from Arnd Bergmann: "This is a cleanup series from Nicholas Piggin, preparing for later changes. The asm/mmu_context.h header are generalized and common code moved to asm-gneneric/mmu_context.h. This saves a bit of code and makes it easier to change in the future" * tag 'asm-generic-mmu-context-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: (25 commits) h8300: Fix generic mmu_context build m68k: mmu_context: Fix Sun-3 build xtensa: use asm-generic/mmu_context.h for no-op implementations x86: use asm-generic/mmu_context.h for no-op implementations um: use asm-generic/mmu_context.h for no-op implementations sparc: use asm-generic/mmu_context.h for no-op implementations sh: use asm-generic/mmu_context.h for no-op implementations s390: use asm-generic/mmu_context.h for no-op implementations riscv: use asm-generic/mmu_context.h for no-op implementations powerpc: use asm-generic/mmu_context.h for no-op implementations parisc: use asm-generic/mmu_context.h for no-op implementations openrisc: use asm-generic/mmu_context.h for no-op implementations nios2: use asm-generic/mmu_context.h for no-op implementations nds32: use asm-generic/mmu_context.h for no-op implementations mips: use asm-generic/mmu_context.h for no-op implementations microblaze: use asm-generic/mmu_context.h for no-op implementations m68k: use asm-generic/mmu_context.h for no-op implementations ia64: use asm-generic/mmu_context.h for no-op implementations hexagon: use asm-generic/mmu_context.h for no-op implementations csky: use asm-generic/mmu_context.h for no-op implementations ... |
|
|
|
2cffa11e2a |
Generic interrupt and irqchips subsystem:
Core:
- Consolidation and robustness changes for irq time accounting
- Cleanup and consolidation of irq stats
- Remove the fasteoi IPI flow which has been proved useless
- Provide an interface for converting legacy interrupt mechanism into
irqdomains
Drivers:
The rare event of not having completely new chip driver code, just new
DT bindings and extensions of existing drivers to accomodate new
variants!
- Preliminary support for managed interrupts on platform devices
- Correctly identify allocation of MSIs proxyied by another device
- Generalise the Ocelot support to new SoCs
- Improve GICv4.1 vcpu entry, matching the corresponding KVM optimisation
- Work around spurious interrupts on Qualcomm PDC
- Random fixes and cleanups
Thanks,
tglx
-----BEGIN PGP SIGNATURE-----
iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAl/YwZgTHHRnbHhAbGlu
dXRyb25peC5kZQAKCRCmGPVMDXSYoW4CD/90rTi1OQrMe3nb5okVjUZmktz/K3BN
Cl5+evFiXiNoH+yJSMIVP+8eMAtBH6RgoaD0EUtSYmgzb9h/JRRQYwtPxobXcMb2
2xcWyLPJkVJL431JKNM8BBRYjLA2VnQ6Ia+Kx3BxqpgKXn5+cEMh1dwIy27Ll2rj
+2NHAQe1sHL7o/KcCDhYqbVIDjw5K/d7YPwjEuPeEoNv1DOxrOCdCEfgFN0jBtRE
CoaRTBskeAaHIzHNp47Mxyz43g4tA/D8kB68X0OjpEykVkPUbgNK1FHSwaPbIsFT
FTSPU3zg8Q6DZ+RGyjNJykIFgUbirlJxARk2c6Ct8Kc3DN6K1jQt4EsU7CXRCc98
BTBjUNeFeNj3irZ4GHhyMKOQJCA1Z5nCRfBUGiW6gK8183us3BLfH5DM1zEsAYUh
DCp+UKsLuXhbB80EWq7kl82/2mNGZ8En8EerE6XJA7Z3JN8FplOHEuLezYYzwzbb
RIes971Vc50J2u2Wf/M2c3PDz3D/4FzfwUeA4LJfTnmOL09RYZ8CsqSckpx4ku/F
XiBnjwtGEpDXWJ8z13DC7yONrxFGByV19+sqHTBlub5DmIs0gXjhC0dKAPAruUIS
iCC+Vx6xLgOpTDu8shFsjibbi9Hb6vuZrF2Te+WR5Rf7d80C0J4b5K5PS4daUjr6
IuD2tz+3CtPjHw==
=iytv
-----END PGP SIGNATURE-----
Merge tag 'irq-core-2020-12-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"Generic interrupt and irqchips subsystem updates. Unusually, there is
not a single completely new irq chip driver, just new DT bindings and
extensions of existing drivers to accomodate new variants!
Core:
- Consolidation and robustness changes for irq time accounting
- Cleanup and consolidation of irq stats
- Remove the fasteoi IPI flow which has been proved useless
- Provide an interface for converting legacy interrupt mechanism into
irqdomains
Drivers:
- Preliminary support for managed interrupts on platform devices
- Correctly identify allocation of MSIs proxyied by another device
- Generalise the Ocelot support to new SoCs
- Improve GICv4.1 vcpu entry, matching the corresponding KVM
optimisation
- Work around spurious interrupts on Qualcomm PDC
- Random fixes and cleanups"
* tag 'irq-core-2020-12-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits)
irqchip/qcom-pdc: Fix phantom irq when changing between rising/falling
driver core: platform: Add devm_platform_get_irqs_affinity()
ACPI: Drop acpi_dev_irqresource_disabled()
resource: Add irqresource_disabled()
genirq/affinity: Add irq_update_affinity_desc()
irqchip/gic-v3-its: Flag device allocation as proxied if behind a PCI bridge
irqchip/gic-v3-its: Tag ITS device as shared if allocating for a proxy device
platform-msi: Track shared domain allocation
irqchip/ti-sci-intr: Fix freeing of irqs
irqchip/ti-sci-inta: Fix printing of inta id on probe success
drivers/irqchip: Remove EZChip NPS interrupt controller
Revert "genirq: Add fasteoi IPI flow"
irqchip/hip04: Make IPIs use handle_percpu_devid_irq()
irqchip/bcm2836: Make IPIs use handle_percpu_devid_irq()
irqchip/armada-370-xp: Make IPIs use handle_percpu_devid_irq()
irqchip/gic, gic-v3: Make SGIs use handle_percpu_devid_irq()
irqchip/ocelot: Add support for Jaguar2 platforms
irqchip/ocelot: Add support for Serval platforms
irqchip/ocelot: Add support for Luton platforms
irqchip/ocelot: prepare to support more SoC
...
|
|
|
|
3c41e57a1e |
irqchip updates for Linux 5.11
- Preliminary support for managed interrupts on platform devices - Correctly identify allocation of MSIs proxyied by another device - Remove the fasteoi IPI flow which has been proved useless - Generalise the Ocelot support to new SoCs - Improve GICv4.1 vcpu entry, matching the corresponding KVM optimisation - Work around spurious interrupts on Qualcomm PDC - Random fixes and cleanups -----BEGIN PGP SIGNATURE----- iQJDBAABCgAtFiEEn9UcU+C1Yxj9lZw9I9DQutE9ekMFAl/Uxq8PHG1hekBrZXJu ZWwub3JnAAoJECPQ0LrRPXpDoW0P/0ZMDvFPxrfnJD46exUgUOPuuFF8jZxAlxD8 7UExqar7u6yX7bbq394jPgtOOxldDagfCx/jCXgb9ja7DK5EHKRcrfjaDT8knHi2 Keg5RaRMRi9TVltvWQTxAkXwSv0Atl881qqsndPeZCez0GNZp+HB34s+rNkZwBOu MBrWihMQOSv5QE6milsNc7HXLSHM1eLZ7Y2XgumNtKrIGEX9yZI7qwdMofwP8Za3 ayMOvc1WAWaTJI7Mg5ac1yTCVbqLmRHhCtws6c6DMgaRu6SI0itmbpQzkDuJJIe3 k9h4KQPaKAFcQsoo3GV0MKTMm63eq82XT3CAdv+htYRY1z95D2+nzNK+mJtsGptX gJ2zeJkUb4u+yVtNguL9qjo5ssCXV/6IybJxv6baaEFnSwQMUwqa066NdxmtqfIe 1BOWnc153a7SRbQ34M9/llje+v8YJbueGMS2RFR2LQ6IjjpaHsXh+YCZokfA/kdk zGbOUD5WWFtFD1T3UoaJ4gFt+pzHjNqym4CcEj4S1Vf5y+POUkNmC+GYK+xfm2Fp WJMbdIUxJhHFRD9L1ShtfAVUSbp712VOOdILp9rYAkOdqfb51BVUiMUP++s2dGp1 ZIT78qt7kTKT1CxbDdFAjzsi7RoMqdSGYgKmG4sVprELeZnFwq47nBkBr8XEQ1TT 0ccEUOY8 =7Z24 -----END PGP SIGNATURE----- Merge tag 'irqchip-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core Pull irqchip updates for 5.11 from Marc Zyngier: - Preliminary support for managed interrupts on platform devices - Correctly identify allocation of MSIs proxyied by another device - Remove the fasteoi IPI flow which has been proved useless - Generalise the Ocelot support to new SoCs - Improve GICv4.1 vcpu entry, matching the corresponding KVM optimisation - Work around spurious interrupts on Qualcomm PDC - Random fixes and cleanups Link: https://lore.kernel.org/r/20201212135626.1479884-1-maz@kernel.org |
|
|
|
0ca2ce81eb |
arm64 updates for 5.11:
- Expose tag address bits in siginfo. The original arm64 ABI did not
expose any of the bits 63:56 of a tagged address in siginfo. In the
presence of user ASAN or MTE, this information may be useful. The
implementation is generic to other architectures supporting tags (like
SPARC ADI, subject to wiring up the arch code). The user will have to
opt in via sigaction(SA_EXPOSE_TAGBITS) so that the extra bits, if
available, become visible in si_addr.
- Default to 32-bit wide ZONE_DMA. Previously, ZONE_DMA was set to the
lowest 1GB to cope with the Raspberry Pi 4 limitations, to the
detriment of other platforms. With these changes, the kernel scans the
Device Tree dma-ranges and the ACPI IORT information before deciding
on a smaller ZONE_DMA.
- Strengthen READ_ONCE() to acquire when CONFIG_LTO=y. When building
with LTO, there is an increased risk of the compiler converting an
address dependency headed by a READ_ONCE() invocation into a control
dependency and consequently allowing for harmful reordering by the
CPU.
- Add CPPC FFH support using arm64 AMU counters.
- set_fs() removal on arm64. This renders the User Access Override (UAO)
ARMv8 feature unnecessary.
- Perf updates: PMU driver for the ARM DMC-620 memory controller, sysfs
identifier file for SMMUv3, stop event counters support for i.MX8MP,
enable the perf events-based hard lockup detector.
- Reorganise the kernel VA space slightly so that 52-bit VA
configurations can use more virtual address space.
- Improve the robustness of the arm64 memory offline event notifier.
- Pad the Image header to 64K following the EFI header definition
updated recently to increase the section alignment to 64K.
- Support CONFIG_CMDLINE_EXTEND on arm64.
- Do not use tagged PC in the kernel (TCR_EL1.TBID1==1), freeing up 8
bits for PtrAuth.
- Switch to vmapped shadow call stacks.
- Miscellaneous clean-ups.
-----BEGIN PGP SIGNATURE-----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=zXFk
-----END PGP SIGNATURE-----
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- Expose tag address bits in siginfo. The original arm64 ABI did not
expose any of the bits 63:56 of a tagged address in siginfo. In the
presence of user ASAN or MTE, this information may be useful. The
implementation is generic to other architectures supporting tags
(like SPARC ADI, subject to wiring up the arch code). The user will
have to opt in via sigaction(SA_EXPOSE_TAGBITS) so that the extra
bits, if available, become visible in si_addr.
- Default to 32-bit wide ZONE_DMA. Previously, ZONE_DMA was set to the
lowest 1GB to cope with the Raspberry Pi 4 limitations, to the
detriment of other platforms. With these changes, the kernel scans
the Device Tree dma-ranges and the ACPI IORT information before
deciding on a smaller ZONE_DMA.
- Strengthen READ_ONCE() to acquire when CONFIG_LTO=y. When building
with LTO, there is an increased risk of the compiler converting an
address dependency headed by a READ_ONCE() invocation into a control
dependency and consequently allowing for harmful reordering by the
CPU.
- Add CPPC FFH support using arm64 AMU counters.
- set_fs() removal on arm64. This renders the User Access Override
(UAO) ARMv8 feature unnecessary.
- Perf updates: PMU driver for the ARM DMC-620 memory controller, sysfs
identifier file for SMMUv3, stop event counters support for i.MX8MP,
enable the perf events-based hard lockup detector.
- Reorganise the kernel VA space slightly so that 52-bit VA
configurations can use more virtual address space.
- Improve the robustness of the arm64 memory offline event notifier.
- Pad the Image header to 64K following the EFI header definition
updated recently to increase the section alignment to 64K.
- Support CONFIG_CMDLINE_EXTEND on arm64.
- Do not use tagged PC in the kernel (TCR_EL1.TBID1==1), freeing up 8
bits for PtrAuth.
- Switch to vmapped shadow call stacks.
- Miscellaneous clean-ups.
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (78 commits)
perf/imx_ddr: Add system PMU identifier for userspace
bindings: perf: imx-ddr: add compatible string
arm64: Fix build failure when HARDLOCKUP_DETECTOR_PERF is enabled
arm64: mte: fix prctl(PR_GET_TAGGED_ADDR_CTRL) if TCF0=NONE
arm64: mark __system_matches_cap as __maybe_unused
arm64: uaccess: remove vestigal UAO support
arm64: uaccess: remove redundant PAN toggling
arm64: uaccess: remove addr_limit_user_check()
arm64: uaccess: remove set_fs()
arm64: uaccess cleanup macro naming
arm64: uaccess: split user/kernel routines
arm64: uaccess: refactor __{get,put}_user
arm64: uaccess: simplify __copy_user_flushcache()
arm64: uaccess: rename privileged uaccess routines
arm64: sdei: explicitly simulate PAN/UAO entry
arm64: sdei: move uaccess logic to arch/arm64/
arm64: head.S: always initialize PSTATE
arm64: head.S: cleanup SCTLR_ELx initialization
arm64: head.S: rename el2_setup -> init_kernel_el
arm64: add C wrappers for SET_PSTATE_*()
...
|
|
|
|
ff98cc986a |
s390/crypto: add arch_get_random_long() support
The random longs to be pulled by arch_get_random_long() are prepared in an 4K buffer which is filled from the NIST 800-90 compliant s390 drbg. By default the random long buffer is refilled 256 times before the drbg itself needs a reseed. The reseed of the drbg is done with 32 bytes fetched from the high quality (but slow) trng which is assumed to deliver 100% entropy. So the 32 * 8 = 256 bits of entropy are spread over 256 * 4KB = 1MB serving 131072 arch_get_random_long() invocations before reseeded. How often the 4K random long buffer is refilled with the drbg before the drbg is reseeded can be adjusted. There is a module parameter 's390_arch_rnd_long_drbg_reseed' accessible via /sys/module/arch_random/parameters/rndlong_drbg_reseed or as kernel command line parameter arch_random.rndlong_drbg_reseed=<value> This parameter tells how often the drbg fills the 4K buffer before it is re-seeded by fresh entropy from the trng. A value of 16 results in reseeding the drbg at every 16 * 4 KB = 64 KB with 32 bytes of fresh entropy pulled from the trng. So a value of 16 would result in 256 bits entropy per 64 KB. A value of 256 results in 1MB of drbg output before a reseed of the drbg is done. So this would spread the 256 bits of entropy among 1MB. Setting this parameter to 0 forces the reseed to take place every time the 4K buffer is depleted, so the entropy rises to 256 bits entropy per 4K or 0.5 bit entropy per arch_get_random_long(). With setting this parameter to negative values all this effort is disabled, arch_get_random long() returns false and thus indicating that the arch_get_random_long() feature is disabled at all. arch_get_random_long() is used by random.c among others to provide an initial hash value to be mixed with the entropy pool on every random data pull. For about 64 bytes read from /dev/urandom there is one call to arch_get_random_long(). So these additional random long values count for performance of /dev/urandom with measurable but low penalty. Signed-off-by: Harald Freudenberger <freude@linux.ibm.com> Reviewed-by: Ingo Franzki <ifranzki@linux.ibm.com> Reviewed-by: Juergen Christ <jchrist@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
50a05be484 |
KVM: s390: track synchronous pfault events in kvm_stat
Right now we do count pfault (pseudo page faults aka async page faults start and completion events). What we do not count is, if an async page fault would have been possible by the host, but it was disabled by the guest (e.g. interrupts off, pfault disabled, secure execution....). Let us count those as well in the pfault_sync counter. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com> Link: https://lore.kernel.org/r/20201125090658.38463-1-borntraeger@de.ibm.com |
|
|
|
b4d70a6134 |
s390/mm: use invalid asce for user space when switching to init_mm
Currently only idle_task_exit() explicitly switches (switch_mm) to init_mm. This causes the kernel asce to be loaded into cr7 and therefore it would be used for potential user space accesses. This is currently no problem since idle_task_exit() is nearly the last thing a CPU executes before it is taken down. However things might change - and therefore make sure that always the invalid asce is used for cr7 when active_mm is init_mm. This makes sure that all potential user space accesses will fail, instead of accessing kernel address space. Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
2b91ec9f55 |
s390/vtime: Use the generic IRQ entry accounting
s390 has its own version of IRQ entry accounting because it doesn't account the idle time the same way the other architectures do. Only the actual idle sleep time is accounted as idle time, the rest of the idle task execution is accounted as system time. Make the generic IRQ entry accounting aware of architectures that have their own way of accounting idle time and convert s390 to use it. This prepares s390 to get involved in further consolidations of IRQ time accounting. Signed-off-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/r/20201202115732.27827-3-frederic@kernel.org |
|
|
|
8cc0dcfdc1 |
s390/cio: remove pm support from ccw bus driver
As part of removing broken pm-support from s390 arch, remove
the pm callbacks from ccw-bus driver.The power-management functions
are unused since the 'commit
|
|
|
|
1d82b7898f |
arch: move SA_* definitions to generic headers
Most architectures with the exception of alpha, mips, parisc and sparc use the same values for these flags. Move their definitions into asm-generic/signal-defs.h and allow the architectures with non-standard values to override them. Also, document the non-standard flag values in order to make it easier to add new generic flags in the future. A consequence of this change is that on powerpc and x86, the constants' values aside from SA_RESETHAND change signedness from unsigned to signed. This is not expected to impact realistic use of these constants. In particular the typical use of the constants where they are or'ed together and assigned to sa_flags (or another int variable) would not be affected. Signed-off-by: Peter Collingbourne <pcc@google.com> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Reviewed-by: Dave Martin <Dave.Martin@arm.com> Link: https://linux-review.googlesource.com/id/Ia3849f18b8009bf41faca374e701cdca36974528 Link: https://lkml.kernel.org/r/b6d0d1ec34f9ee93e1105f14f288fba5f89d1f24.1605235762.git.pcc@google.com Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> |
|
|
|
80f0630624 |
s390/vdso: reimplement getcpu vdso syscall
Implement the previously removed getcpu vdso syscall by using the TOD programmable field to pass the cpu number to user space. Reviewed-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
062e527956 |
s390/mm: add debug user asce support
Verify on exit to user space that always - the primary ASCE (cr1) is set to kernel ASCE - the secondary ASCE (cr7) is set to user ASCE If this is not the case: panic since something went terribly wrong. Reviewed-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
0290c9e328 |
s390/mm: use invalid asce instead of kernel asce
Create a region 3 page table which contains only invalid entries, and use that via "s390_invalid_asce" instead of the kernel ASCE whenever there is either - no user address space available, e.g. during early startup - as an intermediate ASCE when address spaces are switched This makes sure that user space accesses in such situations are guaranteed to fail. Reviewed-by: Sven Schnelle <svens@linux.ibm.com> Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
87d5986345 |
s390/mm: remove set_fs / rework address space handling
Remove set_fs support from s390. With doing this rework address space handling and simplify it. As a result address spaces are now setup like this: CPU running in | %cr1 ASCE | %cr7 ASCE | %cr13 ASCE ----------------------------|-----------|-----------|----------- user space | user | user | kernel kernel, normal execution | kernel | user | kernel kernel, kvm guest execution | gmap | user | kernel To achieve this the getcpu vdso syscall is removed in order to avoid secondary address mode and a separate vdso address space in for user space. The getcpu vdso syscall will be implemented differently with a subsequent patch. The kernel accesses user space always via secondary address space. This happens in different ways: - with mvcos in home space mode and directly read/write to secondary address space - with mvcs/mvcp in primary space mode and copy from primary space to secondary space or vice versa - with e.g. cs in secondary space mode and access secondary space Switching translation modes happens with sacf before and after instructions which access user space, like before. Lazy handling of control register reloading is removed in the hope to make everything simpler, but at the cost of making kernel entry and exit a bit slower. That is: on kernel entry the primary asce is always changed to contain the kernel asce, and on kernel exit the primary asce is changed again so it contains the user asce. In kernel mode there is only one exception to the primary asce: when kvm guests are executed the primary asce contains the gmap asce (which describes the guest address space). The primary asce is reset to kernel asce whenever kvm guest execution is interrupted, so that this doesn't has to be taken into account for any user space accesses. Reviewed-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
c09058eda2 |
s390: Enable seccomp architecture tracking
To enable seccomp constant action bitmaps, we need to have a static mapping to the audit architecture and system call table size. Add these for s390. Signed-off-by: YiFei Zhu <yifeifz2@illinois.edu> Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/a381b10aa2c5b1e583642f3cd46ced842d9d4ce5.1605101222.git.yifeifz2@illinois.edu |
|
|
|
8977ab65b8 |
s390/decompressor: add stacktrace support
Decompressor works on a single statically allocated stack. Stacktrace implementation with -mbackchain just takes few lines of code. Linux version 5.10.0-rc3-22793-g0f84a355b776-dirty (gor@tuxmaker) #27 SMP PREEMPT Mon Nov 9 17:30:18 CET 2020 Kernel fault: interruption code 0005 ilc:2 PSW : 0000000180000000 0000000000012f92 (parse_boot_command_line+0x27a/0x46c) R:0 T:0 IO:0 EX:0 Key:0 M:0 W:0 P:0 AS:0 CC:0 PM:0 RI:0 EA:3 GPRS: 0000000000000000 00ffffffffffffff 0000000000000000 000000000001a62c 000000000000bf60 0000000000000000 00000000000003c0 0000000000000000 0000000000000080 000000000002322d 000000007f29ef20 0000000000efd018 000000000311c000 0000000000010070 0000000000012f82 000000000000bea8 Call Trace: (sp:000000000000bea8 [<000000000002016e>] 000000000002016e) sp:000000000000bf18 [<0000000000012408>] startup_kernel+0x88/0x2fc sp:000000000000bf60 [<00000000000100c4>] startup_normal+0xb0/0xb0 Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
c9343637d6 |
s390/ftrace: assume -mhotpatch or -mrecord-mcount always available
Currently the kernel minimal compiler requirement is gcc 4.9 or clang 10.0.1. * gcc -mhotpatch option is supported since 4.8. * A combination of -pg -mrecord-mcount -mnop-mcount -mfentry flags is supported since gcc 9 and since clang 10. Drop support for old -pg function prologues. Which leaves binary compatible -mhotpatch / -mnop-mcount -mfentry prologues in a form: brcl 0,0 Which are also do not require initial nop optimization / conversion and presence of _mcount symbol. Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
73045a08cf |
s390: unify identity mapping limits handling
Currently we have to consider too many different values which in the end only affect identity mapping size. These are: 1. max_physmem_end - end of physical memory online or standby. Always <= end of the last online memory block (get_mem_detect_end()). 2. CONFIG_MAX_PHYSMEM_BITS - the maximum size of physical memory the kernel is able to support. 3. "mem=" kernel command line option which limits physical memory usage. 4. OLDMEM_BASE which is a kdump memory limit when the kernel is executed as crash kernel. 5. "hsa" size which is a memory limit when the kernel is executed during zfcp/nvme dump. Through out kernel startup and run we juggle all those values at once but that does not bring any amusement, only confusion and complexity. Unify all those values to a single one we should really care, that is our identity mapping size. Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Acked-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
5ec11d0966 |
s390/cio: fix kernel-doc markups in cio driver.
Fix typo in the kernel-doc markups 1. ccw driver -> ccw_driver 2. ccw_device_id_is_equal() -> ccw_dev_id_is_equal Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Reviewed-by: Cornelia Huck <cohuck@redhat.com> [vneethv@linux.ibm.com: slight modification in the changelog] Reviewed-by: Vineeth Vijayan <vneethv@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
b971cbd03e |
s390/sclp: provide extended sccb support
As the number of cpus increases, the sccb response can exceed 4k for read cpu and read scp info sclp commands. Hence, all cpu info entries cant be embedded within a sccb response Solution: To overcome this limitation, extended sccb facility is provided by sclp. 1. Check if the extended sccb facility is installed. 2. If extended sccb is installed, perform the read scp and read cpu command considering a max sccb length of three page size. This max length is based on factors like max cpus, sccb header. 3. If extended sccb is not installed, perform the read scp and read cpu sclp command considering a max sccb length of one page size. Signed-off-by: Sumanth Korikkar <sumanthk@linux.ibm.com> Reviewed-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
32ef938815 |
s390/cio: Add support for FCES status notification
Fibre Channel Endpoint-Security event is received as an sei:nt0 type in the CIO layer. This information needs to be shared with the CCW device drivers using the path_events callback. Co-developed-by: Sebastian Ott <sebott@linux.ibm.com> Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.ibm.com> Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Acked-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
|
|
|
4cd6094d9d |
s390/cio: Provide Endpoint-Security Mode per CU
Add an interface in the CIO layer to retrieve the information about the Endpoint-Security Mode (ESM) of the specified CU. The ESM values are defined as 0-None, 1-Authenticated or 2, 3-Encrypted. [vneethv@linux.ibm.com: cleaned-up and modified description] Signed-off-by: Sebastian Ott <sebott@linux.ibm.com> Signed-off-by: Vineeth Vijayan <vneethv@linux.ibm.com> Signed-off-by: Stefan Haberland <sth@linux.ibm.com> Reviewed-by: Peter Oberparleiter <oberpar@linux.ibm.com> Acked-by: Vasily Gorbik <gor@linux.ibm.com> Acked-by: Cornelia Huck <cohuck@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
|
|
|
2860cd8a23 |
livepatch: Use the default ftrace_ops instead of REGS when ARGS is available
When CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS is available, the ftrace call will be able to set the ip of the calling function. This will improve the performance of live kernel patching where it does not need all the regs to be stored just to change the instruction pointer. If all archs that support live kernel patching also support HAVE_DYNAMIC_FTRACE_WITH_ARGS, then the architecture specific function klp_arch_set_pc() could be made generic. It is possible that an arch can support HAVE_DYNAMIC_FTRACE_WITH_ARGS but not HAVE_DYNAMIC_FTRACE_WITH_REGS and then have access to live patching. Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: live-patching@vger.kernel.org Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Miroslav Benes <mbenes@suse.cz> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> |
|
|
|
ab177c5d00 |
s390/mm: remove unused clear_user_asce()
Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
75309018a2 |
s390: add support for TIF_NOTIFY_SIGNAL
Wire up TIF_NOTIFY_SIGNAL handling for s390. Cc: linux-s390@vger.kernel.org Acked-by: Heiko Carstens <hca@linux.ibm.com> Acked-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Jens Axboe <axboe@kernel.dk> |
|
|
|
0c4ec024a4 |
s390/kasan: move memory needs estimation into a function
Also correct rounding downs in estimation calculations. Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
e385b550fa |
s390/kasan: make kasan header self-contained
It is relying on _REGION1_SHIFT / _REGION2_SHIFT values which come from asm/pgtable.h, so include it. Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
54b52981bb |
s390/kasan: remove obvious parameter with the only possible value
Kasan early code is only working on init_mm, remove unneeded pgd parameter from kasan_copy_shadow and rename it to kasan_copy_shadow_mapping. Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
fc67c880e3 |
s390/mm: extend default vmalloc area size to 512GB
We've seen several occurences in the past where the default vmalloc size of 128GB is not sufficient. Therefore extend the default size. Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com> Reviewed-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
a3453d923e |
s390/kasan: remove 3-level paging support
Compiling the kernel with Kasan disables automatic 3-level vs 4-level kernel space paging selection, because the shadow memory offset has to be known at compile time and there is no such offset which would be acceptable for both 3 and 4-level paging. Instead S390_4_LEVEL_PAGING option was introduced which allowed to pick how many paging levels to use under Kasan. With the introduction of protected virtualization, kernel memory layout may be affected due to ultravisor secure storage limit. This adds additional complexity into how memory layout would look like in combination with Kasan predefined shadow memory offsets. To simplify this make Kasan 4-level paging default and remove Kasan 3-level paging support. Suggested-by: Heiko Carstens <hca@linux.ibm.com> Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
f38b0a7439 |
s390: remove unused s390_base_ext_handler
s390_base_ext_handler_fn haven't been used since its introduction in
commit
|
|
|
|
85cde0192a |
s390/udelay: make it work for the early code
Currently udelay relies on working EXT interrupts handler, which is not the case during early startup. In such cases udelay_simple() has to be used instead. To avoid mistakes of calling udelay too early, which could happen from the common code as well - make udelay work for the early code by introducing static branch and redirecting all udelay calls to udelay_simple until EXT interrupts handler is fully initialized and async stack is allocated. Reviewed-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com> Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
e99198661e |
s390/vdso: remove empty unused file
Signed-off-by: Heiko Carstens <hca@linux.ibm.com> |
|
|
|
b0e98aa9c4 |
s390/mm: make pmd/pud_deref() large page aware
pmd/pud_deref() assume that they will never operate on large pmd/pud entries, and therefore only use the non-large _xxx_ENTRY_ORIGIN mask. With commit |
|
|
|
93e2dfd394 |
s390: use asm-generic/mmu_context.h for no-op implementations
Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Christian Borntraeger <borntraeger@de.ibm.com> Cc: linux-s390@vger.kernel.org Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
|
|
|
8e90b4b130 |
s390: correct __bootdata / __bootdata_preserved macros
Currently s390 build is broken. SECTCMP .boot.data error: section .boot.data differs between vmlinux and arch/s390/boot/compressed/vmlinux make[2]: *** [arch/s390/boot/section_cmp.boot.data] Error 1 SECTCMP .boot.preserved.data error: section .boot.preserved.data differs between vmlinux and arch/s390/boot/compressed/vmlinux make[2]: *** [arch/s390/boot/section_cmp.boot.preserved.data] Error 1 make[1]: *** [bzImage] Error 2 Commit |
|
|
|
33def8498f |
treewide: Convert macro and uses of __section(foo) to __section("foo")
Use a more generic form for __section that requires quotes to avoid
complications with clang and gcc differences.
Remove the quote operator # from compiler_attributes.h __section macro.
Convert all unquoted __section(foo) uses to quoted __section("foo").
Also convert __attribute__((section("foo"))) uses to __section("foo")
even if the __attribute__ has multiple list entry forms.
Conversion done using the script at:
https://lore.kernel.org/lkml/75393e5ddc272dc7403de74d645e6c6e0f4e70eb.camel@perches.com/2-convert_section.pl
Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@gooogle.com>
Reviewed-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
|
|
|
fc996db970 |
VFIO updates for v5.10-rc1
- New fsl-mc vfio bus driver supporting userspace drivers of objects
within NXP's DPAA2 architecture (Diana Craciun)
- Support for exposing zPCI information on s390 (Matthew Rosato)
- Fixes for "detached" VFs on s390 (Matthew Rosato)
- Fixes for pin-pages and dma-rw accesses (Yan Zhao)
- Cleanups and optimize vconfig regen (Zenghui Yu)
- Fix duplicate irq-bypass token registration (Alex Williamson)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.14 (GNU/Linux)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=LDPo
-----END PGP SIGNATURE-----
Merge tag 'vfio-v5.10-rc1' of git://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- New fsl-mc vfio bus driver supporting userspace drivers of objects
within NXP's DPAA2 architecture (Diana Craciun)
- Support for exposing zPCI information on s390 (Matthew Rosato)
- Fixes for "detached" VFs on s390 (Matthew Rosato)
- Fixes for pin-pages and dma-rw accesses (Yan Zhao)
- Cleanups and optimize vconfig regen (Zenghui Yu)
- Fix duplicate irq-bypass token registration (Alex Williamson)
* tag 'vfio-v5.10-rc1' of git://github.com/awilliam/linux-vfio: (30 commits)
vfio iommu type1: Fix memory leak in vfio_iommu_type1_pin_pages
vfio/pci: Clear token on bypass registration failure
vfio/fsl-mc: fix the return of the uninitialized variable ret
vfio/fsl-mc: Fix the dead code in vfio_fsl_mc_set_irq_trigger
vfio/fsl-mc: Fixed vfio-fsl-mc driver compilation on 32 bit
MAINTAINERS: Add entry for s390 vfio-pci
vfio-pci/zdev: Add zPCI capabilities to VFIO_DEVICE_GET_INFO
vfio/fsl-mc: Add support for device reset
vfio/fsl-mc: Add read/write support for fsl-mc devices
vfio/fsl-mc: trigger an interrupt via eventfd
vfio/fsl-mc: Add irq infrastructure for fsl-mc devices
vfio/fsl-mc: Added lock support in preparation for interrupt handling
vfio/fsl-mc: Allow userspace to MMAP fsl-mc device MMIO regions
vfio/fsl-mc: Implement VFIO_DEVICE_GET_REGION_INFO ioctl call
vfio/fsl-mc: Implement VFIO_DEVICE_GET_INFO ioctl
vfio/fsl-mc: Scan DPRC objects on vfio-fsl-mc driver bind
vfio: Introduce capability definitions for VFIO_DEVICE_GET_INFO
s390/pci: track whether util_str is valid in the zpci_dev
s390/pci: stash version in the zpci_dev
vfio/fsl-mc: Add VFIO framework skeleton for fsl-mc devices
...
|
|
|
|
847d4287a0 |
s390 updates for the 5.10 merge window
- Remove address space overrides using set_fs(). - Convert to generic vDSO. - Convert to generic page table dumper. - Add ARCH_HAS_DEBUG_WX support. - Add leap seconds handling support. - Add NVMe firmware-assisted kernel dump support. - Extend NVMe boot support with memory clearing control and addition of kernel parameters. - AP bus and zcrypt api code rework. Add adapter configure/deconfigure interface. Extend debug features. Add failure injection support. - Add ECC secure private keys support. - Add KASan support for running protected virtualization host with 4-level paging. - Utilize destroy page ultravisor call to speed up secure guests shutdown. - Implement ioremap_wc() and ioremap_prot() with MIO in PCI code. - Various checksum improvements. - Other small various fixes and improvements all over the code. -----BEGIN PGP SIGNATURE----- iQEzBAABCAAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAl+JXIIACgkQjYWKoQLX FBgIWAf9FKpnIsy/aNI2RpvojfySEhgH3T5zxGDTjghCSUQzAu0hIBPKhQOs/YfV /apflXxNPneq7FsQPPpNqfdz2DXQrtgDfecK+7GyEVoOawFArgxiwP+tDVy4dmPT 30PNfr+BpGs7GjKuj33fC0c5U33HYvKzUGJn/GQB2Fhw+5tTDxxCubuS1GVR9iuw /U1cQhG4KN0lwEeF2gO7BWWgqTH9C1t60+WzOQhIAbdvgtBRr1ctGu//F5S94BYL NBw5Wxb9vUHrMm2mL0n8bi16hSn2MWHmAMQLkxPXI2osBYun3soaHUWFSA3ryFMw 4BGU+g7T66Pv3ZmLP4jH5UGrn8HWmg== =4zdC -----END PGP SIGNATURE----- Merge tag 's390-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 updates from Vasily Gorbik: - Remove address space overrides using set_fs() - Convert to generic vDSO - Convert to generic page table dumper - Add ARCH_HAS_DEBUG_WX support - Add leap seconds handling support - Add NVMe firmware-assisted kernel dump support - Extend NVMe boot support with memory clearing control and addition of kernel parameters - AP bus and zcrypt api code rework. Add adapter configure/deconfigure interface. Extend debug features. Add failure injection support - Add ECC secure private keys support - Add KASan support for running protected virtualization host with 4-level paging - Utilize destroy page ultravisor call to speed up secure guests shutdown - Implement ioremap_wc() and ioremap_prot() with MIO in PCI code - Various checksum improvements - Other small various fixes and improvements all over the code * tag 's390-5.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (85 commits) s390/uaccess: fix indentation s390/uaccess: add default cases for __put_user_fn()/__get_user_fn() s390/zcrypt: fix wrong format specifications s390/kprobes: move insn_page to text segment s390/sie: fix typo in SIGP code description s390/lib: fix kernel doc for memcmp() s390/zcrypt: Introduce Failure Injection feature s390/zcrypt: move ap_msg param one level up the call chain s390/ap/zcrypt: revisit ap and zcrypt error handling s390/ap: Support AP card SCLP config and deconfig operations s390/sclp: Add support for SCLP AP adapter config/deconfig s390/ap: add card/queue deconfig state s390/ap: add error response code field for ap queue devices s390/ap: split ap queue state machine state from device state s390/zcrypt: New config switch CONFIG_ZCRYPT_DEBUG s390/zcrypt: introduce msg tracking in zcrypt functions s390/startup: correct early pgm check info formatting s390: remove orphaned extern variables declarations s390/kasan: make sure int handler always run with DAT on s390/ipl: add support to control memory clearing for nvme re-IPL ... |
|
|
|
9ff9b0d392 |
networking changes for the 5.10 merge window
Add redirect_neigh() BPF packet redirect helper, allowing to limit stack traversal in common container configs and improving TCP back-pressure. Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain. Expand netlink policy support and improve policy export to user space. (Ge)netlink core performs request validation according to declared policies. Expand the expressiveness of those policies (min/max length and bitmasks). Allow dumping policies for particular commands. This is used for feature discovery by user space (instead of kernel version parsing or trial and error). Support IGMPv3/MLDv2 multicast listener discovery protocols in bridge. Allow more than 255 IPv4 multicast interfaces. Add support for Type of Service (ToS) reflection in SYN/SYN-ACK packets of TCPv6. In Multi-patch TCP (MPTCP) support concurrent transmission of data on multiple subflows in a load balancing scenario. Enhance advertising addresses via the RM_ADDR/ADD_ADDR options. Support SMC-Dv2 version of SMC, which enables multi-subnet deployments. Allow more calls to same peer in RxRPC. Support two new Controller Area Network (CAN) protocols - CAN-FD and ISO 15765-2:2016. Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit kernel problem. Add TC actions for implementing MPLS L2 VPNs. Improve nexthop code - e.g. handle various corner cases when nexthop objects are removed from groups better, skip unnecessary notifications and make it easier to offload nexthops into HW by converting to a blocking notifier. Support adding and consuming TCP header options by BPF programs, opening the doors for easy experimental and deployment-specific TCP option use. Reorganize TCP congestion control (CC) initialization to simplify life of TCP CC implemented in BPF. Add support for shipping BPF programs with the kernel and loading them early on boot via the User Mode Driver mechanism, hence reusing all the user space infra we have. Support sleepable BPF programs, initially targeting LSM and tracing. Add bpf_d_path() helper for returning full path for given 'struct path'. Make bpf_tail_call compatible with bpf-to-bpf calls. Allow BPF programs to call map_update_elem on sockmaps. Add BPF Type Format (BTF) support for type and enum discovery, as well as support for using BTF within the kernel itself (current use is for pretty printing structures). Support listing and getting information about bpf_links via the bpf syscall. Enhance kernel interfaces around NIC firmware update. Allow specifying overwrite mask to control if settings etc. are reset during update; report expected max time operation may take to users; support firmware activation without machine reboot incl. limits of how much impact reset may have (e.g. dropping link or not). Extend ethtool configuration interface to report IEEE-standard counters, to limit the need for per-vendor logic in user space. Adopt or extend devlink use for debug, monitoring, fw update in many drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx, dpaa2-eth). In mlxsw expose critical and emergency SFP module temperature alarms. Refactor port buffer handling to make the defaults more suitable and support setting these values explicitly via the DCBNL interface. Add XDP support for Intel's igb driver. Support offloading TC flower classification and filtering rules to mscc_ocelot switches. Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as fixed interval period pulse generator and one-step timestamping in dpaa-eth. Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3) offload. Add Lynx PHY/PCS MDIO module, and convert various drivers which have this HW to use it. Convert mvpp2 to split PCS. Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as 7-port Mediatek MT7531 IP. Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver, and wcn3680 support in wcn36xx. Improve performance for packets which don't require much offloads on recent Mellanox NICs by 20% by making multiple packets share a descriptor entry. Move chelsio inline crypto drivers (for TLS and IPsec) from the crypto subtree to drivers/net. Move MDIO drivers out of the phy directory. Clean up a lot of W=1 warnings, reportedly the actively developed subsections of networking drivers should now build W=1 warning free. Make sure drivers don't use in_interrupt() to dynamically adapt their code. Convert tasklets to use new tasklet_setup API (sadly this conversion is not yet complete). Signed-off-by: Jakub Kicinski <kuba@kernel.org> -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEE6jPA+I1ugmIBA4hXMUZtbf5SIrsFAl+ItRwACgkQMUZtbf5S IrtTMg//UxpdR/MirT1DatBU0K/UGAZY82hV7F/UC8tPgjfHZeHvWlDFxfi3YP81 PtPKbhRZ7DhwBXefUp6nY3UdvjftrJK2lJm8prJUPSsZRye8Wlcb7y65q7/P2y2U Efucyopg6RUrmrM0DUsIGYGJgylQLHnMYUl/keCsD4t5Bp4ksyi9R2t5eitGoWzh r3QGdbSa0AuWx4iu0i+tqp6Tj0ekMBMXLVb35dtU1t0joj2KTNEnSgABN3prOa8E iWYf2erOau68Ogp3yU3miCy0ZU4p/7qGHTtzbcp677692P/ekak6+zmfHLT9/Pjy 2Stq2z6GoKuVxdktr91D9pA3jxG4LxSJmr0TImcGnXbvkMP3Ez3g9RrpV5fn8j6F mZCH8TKZAoD5aJrAJAMkhZmLYE1pvDa7KolSk8WogXrbCnTEb5Nv8FHTS1Qnk3yl wSKXuvutFVNLMEHCnWQLtODbTST9DI/aOi6EctPpuOA/ZyL1v3pl+gfp37S+LUTe owMnT/7TdvKaTD0+gIyU53M6rAWTtr5YyRQorX9awIu/4Ha0F0gYD7BJZQUGtegp HzKt59NiSrFdbSH7UdyemdBF4LuCgIhS7rgfeoUXMXmuPHq7eHXyHZt5dzPPa/xP 81P0MAvdpFVwg8ij2yp2sHS7sISIRKq17fd1tIewUabxQbjXqPc= =bc1U -----END PGP SIGNATURE----- Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next Pull networking updates from Jakub Kicinski: - Add redirect_neigh() BPF packet redirect helper, allowing to limit stack traversal in common container configs and improving TCP back-pressure. Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain. - Expand netlink policy support and improve policy export to user space. (Ge)netlink core performs request validation according to declared policies. Expand the expressiveness of those policies (min/max length and bitmasks). Allow dumping policies for particular commands. This is used for feature discovery by user space (instead of kernel version parsing or trial and error). - Support IGMPv3/MLDv2 multicast listener discovery protocols in bridge. - Allow more than 255 IPv4 multicast interfaces. - Add support for Type of Service (ToS) reflection in SYN/SYN-ACK packets of TCPv6. - In Multi-patch TCP (MPTCP) support concurrent transmission of data on multiple subflows in a load balancing scenario. Enhance advertising addresses via the RM_ADDR/ADD_ADDR options. - Support SMC-Dv2 version of SMC, which enables multi-subnet deployments. - Allow more calls to same peer in RxRPC. - Support two new Controller Area Network (CAN) protocols - CAN-FD and ISO 15765-2:2016. - Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit kernel problem. - Add TC actions for implementing MPLS L2 VPNs. - Improve nexthop code - e.g. handle various corner cases when nexthop objects are removed from groups better, skip unnecessary notifications and make it easier to offload nexthops into HW by converting to a blocking notifier. - Support adding and consuming TCP header options by BPF programs, opening the doors for easy experimental and deployment-specific TCP option use. - Reorganize TCP congestion control (CC) initialization to simplify life of TCP CC implemented in BPF. - Add support for shipping BPF programs with the kernel and loading them early on boot via the User Mode Driver mechanism, hence reusing all the user space infra we have. - Support sleepable BPF programs, initially targeting LSM and tracing. - Add bpf_d_path() helper for returning full path for given 'struct path'. - Make bpf_tail_call compatible with bpf-to-bpf calls. - Allow BPF programs to call map_update_elem on sockmaps. - Add BPF Type Format (BTF) support for type and enum discovery, as well as support for using BTF within the kernel itself (current use is for pretty printing structures). - Support listing and getting information about bpf_links via the bpf syscall. - Enhance kernel interfaces around NIC firmware update. Allow specifying overwrite mask to control if settings etc. are reset during update; report expected max time operation may take to users; support firmware activation without machine reboot incl. limits of how much impact reset may have (e.g. dropping link or not). - Extend ethtool configuration interface to report IEEE-standard counters, to limit the need for per-vendor logic in user space. - Adopt or extend devlink use for debug, monitoring, fw update in many drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx, dpaa2-eth). - In mlxsw expose critical and emergency SFP module temperature alarms. Refactor port buffer handling to make the defaults more suitable and support setting these values explicitly via the DCBNL interface. - Add XDP support for Intel's igb driver. - Support offloading TC flower classification and filtering rules to mscc_ocelot switches. - Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as fixed interval period pulse generator and one-step timestamping in dpaa-eth. - Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3) offload. - Add Lynx PHY/PCS MDIO module, and convert various drivers which have this HW to use it. Convert mvpp2 to split PCS. - Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as 7-port Mediatek MT7531 IP. - Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver, and wcn3680 support in wcn36xx. - Improve performance for packets which don't require much offloads on recent Mellanox NICs by 20% by making multiple packets share a descriptor entry. - Move chelsio inline crypto drivers (for TLS and IPsec) from the crypto subtree to drivers/net. Move MDIO drivers out of the phy directory. - Clean up a lot of W=1 warnings, reportedly the actively developed subsections of networking drivers should now build W=1 warning free. - Make sure drivers don't use in_interrupt() to dynamically adapt their code. Convert tasklets to use new tasklet_setup API (sadly this conversion is not yet complete). * tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits) Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH" net, sockmap: Don't call bpf_prog_put() on NULL pointer bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo bpf, sockmap: Add locking annotations to iterator netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements net: fix pos incrementment in ipv6_route_seq_next net/smc: fix invalid return code in smcd_new_buf_create() net/smc: fix valid DMBE buffer sizes net/smc: fix use-after-free of delayed events bpfilter: Fix build error with CONFIG_BPFILTER_UMH cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info bpf: Fix register equivalence tracking. rxrpc: Fix loss of final ack on shutdown rxrpc: Fix bundle counting for exclusive connections netfilter: restore NF_INET_NUMHOOKS ibmveth: Identify ingress large send packets. ibmveth: Switch order of ibmveth_helper calls. cxgb4: handle 4-tuple PEDIT to NAT mode translation selftests: Add VRF route leaking tests ... |