Linus Torvalds
b970afcfca
powerpc updates for 5.2 ...
Highlights:
- Support for Kernel Userspace Access/Execution Prevention (like
SMAP/SMEP/PAN/PXN) on some 64-bit and 32-bit CPUs. This prevents the kernel
from accidentally accessing userspace outside copy_to/from_user(), or
ever executing userspace.
- KASAN support on 32-bit.
- Rework of where we map the kernel, vmalloc, etc. on 64-bit hash to use the
same address ranges we use with the Radix MMU.
- A rewrite into C of large parts of our idle handling code for 64-bit Book3S
(ie. power8 & power9).
- A fast path entry for syscalls on 32-bit CPUs, for a 12-17% speedup in the
null_syscall benchmark.
- On 64-bit bare metal we have support for recovering from errors with the time
base (our clocksource), however if that fails currently we hang in __delay()
and never crash. We now have support for detecting that case and short
circuiting __delay() so we at least panic() and reboot.
- Add support for optionally enabling the DAWR on Power9, which had to be
disabled by default due to a hardware erratum. This has the effect of
enabling hardware breakpoints for GDB, the downside is a badly behaved
program could crash the machine by pointing the DAWR at cache inhibited
memory. This is opt-in obviously.
- xmon, our crash handler, gets support for a read only mode where operations
that could change memory or otherwise disturb the system are disabled.
Plus many clean-ups, reworks and minor fixes etc.
Thanks to:
Christophe Leroy, Akshay Adiga, Alastair D'Silva, Alexey Kardashevskiy, Andrew
Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Anton Blanchard, Ben Hutchings,
Bo YU, Breno Leitao, Cédric Le Goater, Christopher M. Riedl, Christoph
Hellwig, Colin Ian King, David Gibson, Ganesh Goudar, Gautham R. Shenoy,
George Spelvin, Greg Kroah-Hartman, Greg Kurz, Horia Geantă, Jagadeesh
Pagadala, Joel Stanley, Joe Perches, Julia Lawall, Laurentiu Tudor, Laurent
Vivier, Lukas Bulwahn, Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu
Malaterre, Michael Neuling, Mukesh Ojha, Nathan Fontenot, Nathan Lynch,
Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran, Peng Hao, Qian Cai, Ravi
Bangoria, Rick Lindsley, Russell Currey, Sachin Sant, Stewart Smith, Sukadev
Bhattiprolu, Thomas Huth, Tobin C. Harding, Tyrel Datwyler, Valentin
Schneider, Wei Yongjun, Wen Yang, YueHaibing.
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Merge tag 'powerpc-5.2-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Slightly delayed due to the issue with printk() calling
probe_kernel_read() interacting with our new user access prevention
stuff, but all fixed now.
The only out-of-area changes are the addition of a cpuhp_state, small
additions to Documentation and MAINTAINERS updates.
Highlights:
- Support for Kernel Userspace Access/Execution Prevention (like
SMAP/SMEP/PAN/PXN) on some 64-bit and 32-bit CPUs. This prevents
the kernel from accidentally accessing userspace outside
copy_to/from_user(), or ever executing userspace.
- KASAN support on 32-bit.
- Rework of where we map the kernel, vmalloc, etc. on 64-bit hash to
use the same address ranges we use with the Radix MMU.
- A rewrite into C of large parts of our idle handling code for
64-bit Book3S (ie. power8 & power9).
- A fast path entry for syscalls on 32-bit CPUs, for a 12-17% speedup
in the null_syscall benchmark.
- On 64-bit bare metal we have support for recovering from errors
with the time base (our clocksource), however if that fails
currently we hang in __delay() and never crash. We now have support
for detecting that case and short circuiting __delay() so we at
least panic() and reboot.
- Add support for optionally enabling the DAWR on Power9, which had
to be disabled by default due to a hardware erratum. This has the
effect of enabling hardware breakpoints for GDB, the downside is a
badly behaved program could crash the machine by pointing the DAWR
at cache inhibited memory. This is opt-in obviously.
- xmon, our crash handler, gets support for a read only mode where
operations that could change memory or otherwise disturb the system
are disabled.
Plus many clean-ups, reworks and minor fixes etc.
Thanks to: Christophe Leroy, Akshay Adiga, Alastair D'Silva, Alexey
Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar,
Anton Blanchard, Ben Hutchings, Bo YU, Breno Leitao, Cédric Le Goater,
Christopher M. Riedl, Christoph Hellwig, Colin Ian King, David Gibson,
Ganesh Goudar, Gautham R. Shenoy, George Spelvin, Greg Kroah-Hartman,
Greg Kurz, Horia Geantă, Jagadeesh Pagadala, Joel Stanley, Joe
Perches, Julia Lawall, Laurentiu Tudor, Laurent Vivier, Lukas Bulwahn,
Madhavan Srinivasan, Mahesh Salgaonkar, Mathieu Malaterre, Michael
Neuling, Mukesh Ojha, Nathan Fontenot, Nathan Lynch, Nicholas Piggin,
Nick Desaulniers, Oliver O'Halloran, Peng Hao, Qian Cai, Ravi
Bangoria, Rick Lindsley, Russell Currey, Sachin Sant, Stewart Smith,
Sukadev Bhattiprolu, Thomas Huth, Tobin C. Harding, Tyrel Datwyler,
Valentin Schneider, Wei Yongjun, Wen Yang, YueHaibing"
* tag 'powerpc-5.2-1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (205 commits)
powerpc/64s: Use early_mmu_has_feature() in set_kuap()
powerpc/book3s/64: check for NULL pointer in pgd_alloc()
powerpc/mm: Fix hugetlb page initialization
ocxl: Fix return value check in afu_ioctl()
powerpc/mm: fix section mismatch for setup_kup()
powerpc/mm: fix redundant inclusion of pgtable-frag.o in Makefile
powerpc/mm: Fix makefile for KASAN
powerpc/kasan: add missing/lost Makefile
selftests/powerpc: Add a signal fuzzer selftest
powerpc/booke64: set RI in default MSR
ocxl: Provide global MMIO accessors for external drivers
ocxl: move event_fd handling to frontend
ocxl: afu_irq only deals with IRQ IDs, not offsets
ocxl: Allow external drivers to use OpenCAPI contexts
ocxl: Create a clear delineation between ocxl backend & frontend
ocxl: Don't pass pci_dev around
ocxl: Split pci.c
ocxl: Remove some unused exported symbols
ocxl: Remove superfluous 'extern' from headers
ocxl: read_pasid never returns an error, so make it void
...
2019-05-10 05:29:27 -07:00
Merge branch 'clk-ti' into clk-next
2019-05-07 11:46:02 -07:00
dmaengine: idma64: Move driver name to the header
2019-04-26 16:55:23 +05:30
net: dsa: sja1105: Add support for traffic through standalone ports
2019-05-05 21:52:42 -07:00
EDAC/altera, firmware/intel: Add Stratix10 ECC DBE SMC call
2019-04-02 17:42:15 +02:00
include/fsl: add common FlexTimer #defines in a separate header.
2019-04-25 21:33:41 +02:00
iio: trigger: stm32-timer: fix build issue when disabled
2019-04-22 11:34:14 +01:00
lockd: Store the lockd client credential in struct nlm_host
2019-04-26 17:51:23 -04:00
LED updates for 5.2-rc1.
2019-05-07 18:02:51 -07:00
5.2 Merge Window pull request
2019-05-09 09:02:46 -07:00
mmc: sdio: Add helper macro for sdio_driver boilerplate
2019-04-23 18:09:07 +02:00
ipset: drop ipset_nest_start() and ipset_nest_end()
2019-04-27 17:03:44 -04:00
phy: core: Add *release* phy_ops invoked when the consumer relinquishes PHY
2019-04-17 14:13:17 +05:30
Merge branch 'i2c/for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
2019-05-09 14:41:55 -07:00
drivers: Remove explicit invocations of mmiowb()
2019-04-08 12:01:02 +01:00
rtc: ds1685: use threaded interrupt
2019-04-16 18:03:48 +02:00
Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2019-05-09 13:52:12 -07:00
soundwire: remove multiple blank lines
2019-05-02 17:17:52 +02:00
spi: expand mode support
2019-05-02 10:37:55 +09:00
SUNRPC: Cache cred of process creating the rpc_client
2019-04-26 16:00:48 -04:00
USB: changes for v5.2 merge window
2019-05-03 18:05:27 +02:00
Driver core/kobject patches for 5.2-rc1
2019-05-07 13:01:40 -07:00
perf/smmuv3: Enable HiSilicon Erratum 162001800 quirk
2019-04-04 16:49:22 +01:00
mmc: alcor: work with multiple-entry sglists
2019-05-06 11:55:39 +02:00
ntp: Audit NTP parameters adjustment
2019-04-15 18:14:01 -04:00
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
include/linux/bitrev.h: fix constant bitrev
2019-04-05 16:02:30 -10:00
block: add a SPDX tag to blk-mq-rdma.h
2019-04-30 16:12:02 -06:00
blk-mq: always free hctx after request queue is freed
2019-05-04 07:24:08 -06:00
block: bio: ensure newly added bio flags don't override BVEC_POOL_IDX
2019-04-04 09:30:37 -06:00
blk-mq: always free hctx after request queue is freed
2019-05-04 07:24:08 -06:00
bpf: Add file_pos field to bpf_sysctl ctx
2019-04-12 13:54:58 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
2019-05-02 22:14:21 -04:00
bpf: Introduce bpf sk local storage
2019-04-27 09:07:04 -07:00
bpf: remove global variables
2019-04-23 01:50:43 +02:00
block: switch all files cleared marked as GPLv2 or later to SPDX tags
2019-04-30 16:11:59 -06:00
bpf: allow for key-less BTF in array map
2019-04-09 17:05:46 -07:00
block: fix mismerge in bvec_advance
2019-05-07 08:39:02 -06:00
cgroup: cgroup v2 freezer
2019-04-19 11:26:48 -07:00
cgroup: get rid of cgroup_freezer_frozen_exit()
2019-05-06 08:39:11 -07:00
Merge branch 'clk-parent-rewrite-1' into clk-next
2019-05-07 11:46:13 -07:00
clk: Add missing stubs for a few functions
2019-04-25 08:19:15 -07:00
tracing: Improve "if" macro code generation
2019-04-03 09:36:27 +02:00
coresight: etm4x: Add kernel configuration for CONTEXTID
2019-04-25 22:00:16 +02:00
coresight: Communicate perf event to sink buffer allocation functions
2019-04-25 22:00:17 +02:00
counter: Introduce the Generic Counter interface
2019-04-25 21:33:37 +02:00
counter: Introduce the Generic Counter interface
2019-04-25 21:33:37 +02:00
Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-06 14:44:49 -07:00
cpufreq: intel_pstate: Update max frequency on global turbo changes
2019-04-08 11:26:09 +02:00
powerpc updates for 5.2
2019-05-10 05:29:27 -07:00
cpuidle: Export the next timer expiration for CPUs
2019-04-10 00:32:34 +02:00
security: don't use RCU accessors for cred->session_keyring
2019-04-10 10:28:21 -07:00
Clean up fscrypt's dcache revalidation support, and other
2019-05-07 21:28:04 -07:00
We have a couple new features and changes in the core clk framework this time
2019-05-09 14:50:09 -07:00
dma-buf: explicitely note that dma-fence-chains use 64bit seqno
2019-04-16 14:49:10 +02:00
dma-mapping: remove leftover NULL device support
2019-04-08 17:52:46 +02:00
dma-mapping: add a Kconfig symbol to indicate arch_dma_prep_coherent presence
2019-05-06 15:04:40 +02:00
RDMA/core: Introduce RDMA subsystem ibdev_* print functions
2019-05-01 12:29:28 -04:00
x86/reboot, efi: Use EFI reboot for Acer TravelMate X514-51T
2019-04-16 10:01:24 +02:00
bfq: update internal depth state when queue depth changes
2019-04-13 19:08:22 -06:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2019-04-28 08:42:41 -04:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2019-05-07 22:03:58 -07:00
Add as a feature case-insensitive directories (the casefold feature)
2019-05-07 21:12:44 -07:00
fscrypt: cache decrypted symlink target in ->i_link
2019-04-17 12:43:29 -04:00
fsnotify(): switch to passing const struct qstr * for file_name
2019-04-26 13:37:25 -04:00
fsnotify: switch send_to_group() and ->handle_event to const struct qstr *
2019-04-26 13:51:03 -04:00
tracing: Cleanup stack trace code
2019-04-29 12:37:46 +02:00
block: fix use-after-free on gendisk
2019-04-22 09:48:12 -06:00
Merge branches 'for-5.1/upstream-fixes', 'for-5.2/core', 'for-5.2/ish', 'for-5.2/logitech', 'for-5.2/macally', 'for-5.2/picolcd', 'for-5.2/sensor' and 'for-5.2/u2fzero' into for-linus
2019-05-06 15:45:18 +02:00
hwmon: Add support for samples attributes
2019-04-15 17:19:53 -07:00
Drivers: hv: vmbus: Fix race condition with new ring_buffer_info mutex
2019-04-10 18:58:56 -04:00
i2c: algo: bit: add flag to whitelist atomic transfers
2019-04-16 13:08:16 +02:00
i2c: core: ratelimit 'transfer when suspended' errors
2019-05-03 15:25:00 +02:00
ieee80211: update HE IEs to D4.0 spec
2019-04-26 13:02:11 +02:00
bridge: broute: make broute a real ebtables table
2019-04-12 01:47:50 +02:00
s390/kexec_file: Disable kexec_load when IPLed secure
2019-04-29 10:44:03 +02:00
iommu: io-pgtable: Add ARM Mali midgard MMU page table format
2019-04-12 12:52:38 -05:00
iomap: Add a page_prepare callback
2019-05-01 07:47:37 -07:00
crypto: shash - remove shash_desc::flags
2019-04-25 15:38:12 +08:00
time: Introduce jiffies64_to_msecs()
2019-04-08 22:56:14 +02:00
locking/static_key: Add support for deferred static branches
2019-04-29 08:29:20 +02:00
Linux 5.1-rc6
2019-04-22 09:47:36 -06:00
selinux/stable-5.2 PR 20190507
2019-05-07 18:48:09 -07:00
kobject: Add support for default attribute groups to kobj_type
2019-04-25 22:06:10 +02:00
x86/kprobes: Verify stack frame on kretprobe
2019-04-19 14:26:05 +02:00
KVM: fix spectrev1 gadgets
2019-04-16 15:38:07 +02:00
livepatch: Remove custom kobject state handling
2019-05-03 21:11:22 +02:00
Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-06 13:50:15 -07:00
Merge branch 'work.mount-syscalls' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-05-07 20:17:51 -07:00
net: phy: marvell: add new default led configure for m88e151x
2019-04-23 10:40:32 -07:00
math64: New DIV64_U64_ROUND_CLOSEST helper
2019-04-02 09:50:48 +02:00
net: mdio: rename mdio_device reset to reset_gpio
2019-04-18 17:42:54 -07:00
mm: writeback: use exact memcg dirty counts
2019-04-05 16:02:31 -10:00
mm/hibernation: Make hibernation handle unmapped pages
2019-04-30 12:37:57 +02:00
mm: fix vm_fault_t cast in VM_FAULT_GET_HINDEX()
2019-04-05 16:02:31 -10:00
Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
2019-05-09 12:54:40 -07:00
moduleparam: Save information about built-in modules in separate file
2019-05-07 21:50:24 +09:00
acct_on(): don't mess with freeze protection
2019-04-04 21:04:13 -04:00
net: rework SIOCGSTAMP ioctl handling
2019-04-19 14:07:40 -07:00
net/tls: move definition of tls ops into net/tls.h
2019-04-27 16:52:21 -04:00
netfilter: slightly optimize nf_inet_addr_mask
2019-05-06 01:18:58 +02:00
netfilter: nf_tables: merge route type into core
2019-04-08 23:01:42 +02:00
NFS: Replace custom error reporting mechanism with generic one
2019-04-25 14:18:14 -04:00
NFS: Store the credential of the mount process in the nfs_server
2019-04-26 16:11:54 -04:00
NFS: Remove redundant open context from nfs_page
2019-04-25 14:18:15 -04:00
node: Add memory-side caching attributes
2019-04-04 18:41:21 +02:00
scsi: scsi_transport_fc: nvme: display FC-NVMe port roles
2019-04-12 20:09:34 -04:00
nvme-rdma: fix typo in struct comment
2019-04-25 16:51:42 +02:00
nvmet: fix discover log page when offsets are used
2019-04-11 17:28:30 +02:00
nvmem: core: add nvmem_cell_read_u16
2019-04-25 19:43:12 +02:00
of: fix clang -Wunsequenced for be32_to_cpu()
2019-05-01 14:26:36 -05:00
crypto: ecrdsa - add EC-RDSA (GOST 34.10) algorithm
2019-04-18 22:15:02 +08:00
lib: Add support for generic packing operations
2019-05-03 10:49:17 -04:00
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2019-05-06 14:16:36 -07:00
net: phy: improve resuming from hibernation
2019-05-04 00:50:58 -04:00
clone: add CLONE_PIDFD
2019-05-07 14:31:03 +02:00
There tracing fixes:
2019-04-26 11:09:55 -07:00
PM / Domains: Allow to attach a CPU via genpd_dev_pm_attach_by_id|name()
2019-04-25 23:18:03 +02:00
OPP: Introduce dev_pm_opp_find_freq_ceil_by_volt()
2019-04-10 12:13:31 +05:30
printk: Tie printk_once / printk_deferred_once into .data.once for reset
2019-04-15 10:23:53 +02:00
device property: Add fwnode_graph_get_endpoint_by_id()
2019-04-18 16:44:05 +02:00
crypto: ccp - introduce SEV_GET_ID2 command
2019-04-08 14:36:16 +08:00
ptrace: Remove maxargs from task_current_syscall()
2019-04-04 09:17:15 -04:00
random: move rand_initialize() earlier
2019-04-19 23:27:05 -04:00
rcuwait: Annotate task_struct with __rcu
2019-04-03 12:34:31 +02:00
rhashtable: use bit_spin_locks to protect hash bucket.
2019-04-07 19:12:12 -07:00
rhashtable: use BIT(0) for locking.
2019-04-12 17:34:45 -07:00
rtc: drop set_mms and set_mmss64
2019-05-08 22:14:36 +02:00
locking/rwsem: Optimize rwsem structure for uncontended lock acquisition
2019-04-10 10:56:06 +02:00
lib/scatterlist: Remove leftover from sg_page_iter comment
2019-05-07 12:47:47 -03:00
Merge branch 'for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2019-05-09 13:52:12 -07:00
Merge branch 'work.mount-syscalls' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2019-05-07 20:17:51 -07:00
block: switch all files cleared marked as GPLv2 to SPDX tags
2019-04-30 16:11:57 -06:00
vt: selection: allow functions to be called from inside kernel
2019-04-19 15:09:10 +02:00
docs: serial: convert docs to ReST and rename to *.rst
2019-04-25 11:37:42 +02:00
x86/mm/cpa: Add set_direct_map_*() functions
2019-04-30 12:37:56 +02:00
mm: swapoff: shmem_unuse() stop eviction without igrab()
2019-04-19 09:46:04 -07:00
bpf: support BPF_PROG_QUERY for BPF_FLOW_DISSECTOR attach_type
2019-04-25 23:49:06 +02:00
smpboot: Place the __percpu annotation correctly
2019-04-24 12:17:08 +02:00
mmiowb: Hook up mmiowb helpers to spinlocks and generic I/O accessors
2019-04-08 11:59:47 +01:00
lib/stackdepot: Remove obsolete functions
2019-04-29 12:37:57 +02:00
stacktrace: Provide common infrastructure
2019-04-29 12:37:57 +02:00
lib/string: Add strscpy_pad() function
2019-04-08 16:44:21 -06:00
PM / sleep: Refactor filesystems sync to reduce duplication
2019-04-02 10:53:19 +02:00
thunderbolt: Add XDomain UUID exchange support
2019-04-18 11:18:53 +03:00
Power management updates for 5.2-rc1
2019-05-06 19:40:31 -07:00
bpf: add writable context for raw tracepoints
2019-04-26 19:04:19 -07:00
block: remove CONFIG_LBDAF
2019-04-06 10:48:35 -06:00
x86/uaccess: Introduce user_access_{save,restore}()
2019-04-03 11:02:19 +02:00
iov_iter: fix iov_iter_type
2019-05-01 08:38:47 -06:00
unicode: implement higher level API for string handling
2019-04-25 13:51:22 -04:00
uprobes: Initialize uprobes earlier
2019-04-30 12:37:51 +02:00
USB/PHY patches for 5.2-rc1
2019-05-08 10:03:52 -07:00
virtio: Honour 'may_reduce_num' in vring_create_virtqueue
2019-04-08 17:05:52 -04:00
mm/vmalloc: Add flag for freeing of special permsissions
2019-04-30 12:37:58 +02:00
VMCI: Use BIT() macro for bit definitions
2019-04-02 16:58:30 +02:00
docs: Add colon clearing sphinx warning
2019-04-09 15:14:49 -06:00
