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617aebe6a9
28746 Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
617aebe6a9 |
Currently, hardened usercopy performs dynamic bounds checking on slab
cache objects. This is good, but still leaves a lot of kernel memory available to be copied to/from userspace in the face of bugs. To further restrict what memory is available for copying, this creates a way to whitelist specific areas of a given slab cache object for copying to/from userspace, allowing much finer granularity of access control. Slab caches that are never exposed to userspace can declare no whitelist for their objects, thereby keeping them unavailable to userspace via dynamic copy operations. (Note, an implicit form of whitelisting is the use of constant sizes in usercopy operations and get_user()/put_user(); these bypass all hardened usercopy checks since these sizes cannot change at runtime.) This new check is WARN-by-default, so any mistakes can be found over the next several releases without breaking anyone's system. The series has roughly the following sections: - remove %p and improve reporting with offset - prepare infrastructure and whitelist kmalloc - update VFS subsystem with whitelists - update SCSI subsystem with whitelists - update network subsystem with whitelists - update process memory with whitelists - update per-architecture thread_struct with whitelists - update KVM with whitelists and fix ioctl bug - mark all other allocations as not whitelisted - update lkdtm for more sensible test overage -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: Kees Cook <kees@outflux.net> iQIcBAABCgAGBQJabvleAAoJEIly9N/cbcAmO1kQAJnjVPutnLSbnUteZxtsv7W4 43Cggvokfxr6l08Yh3hUowNxZVKjhF9uwMVgRRg9Nl5WdYCN+vCQbHz+ZdzGJXKq cGqdKWgexMKX+aBdNDrK7BphUeD46sH7JWR+a/lDV/BgPxBCm9i5ZZCgXbPP89AZ NpLBji7gz49wMsnm/x135xtNlZ3dG0oKETzi7MiR+NtKtUGvoIszSKy5JdPZ4m8q 9fnXmHqmwM6uQFuzDJPt1o+D1fusTuYnjI7EgyrJRRhQ+BB3qEFZApXnKNDRS9Dm uB7jtcwefJCjlZVCf2+PWTOEifH2WFZXLPFlC8f44jK6iRW2Nc+wVRisJ3vSNBG1 gaRUe/FSge68eyfQj5OFiwM/2099MNkKdZ0fSOjEBeubQpiFChjgWgcOXa5Bhlrr C4CIhFV2qg/tOuHDAF+Q5S96oZkaTy5qcEEwhBSW15ySDUaRWFSrtboNt6ZVOhug d8JJvDCQWoNu1IQozcbv6xW/Rk7miy8c0INZ4q33YUvIZpH862+vgDWfTJ73Zy9H jR/8eG6t3kFHKS1vWdKZzOX1bEcnd02CGElFnFYUEewKoV7ZeeLsYX7zodyUAKyi Yp5CImsDbWWTsptBg6h9nt2TseXTxYCt2bbmpJcqzsqSCUwOQNQ4/YpuzLeG0ihc JgOmUnQNJWCTwUUw5AS1 =tzmJ -----END PGP SIGNATURE----- Merge tag 'usercopy-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardened usercopy whitelisting from Kees Cook: "Currently, hardened usercopy performs dynamic bounds checking on slab cache objects. This is good, but still leaves a lot of kernel memory available to be copied to/from userspace in the face of bugs. To further restrict what memory is available for copying, this creates a way to whitelist specific areas of a given slab cache object for copying to/from userspace, allowing much finer granularity of access control. Slab caches that are never exposed to userspace can declare no whitelist for their objects, thereby keeping them unavailable to userspace via dynamic copy operations. (Note, an implicit form of whitelisting is the use of constant sizes in usercopy operations and get_user()/put_user(); these bypass all hardened usercopy checks since these sizes cannot change at runtime.) This new check is WARN-by-default, so any mistakes can be found over the next several releases without breaking anyone's system. The series has roughly the following sections: - remove %p and improve reporting with offset - prepare infrastructure and whitelist kmalloc - update VFS subsystem with whitelists - update SCSI subsystem with whitelists - update network subsystem with whitelists - update process memory with whitelists - update per-architecture thread_struct with whitelists - update KVM with whitelists and fix ioctl bug - mark all other allocations as not whitelisted - update lkdtm for more sensible test overage" * tag 'usercopy-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (38 commits) lkdtm: Update usercopy tests for whitelisting usercopy: Restrict non-usercopy caches to size 0 kvm: x86: fix KVM_XEN_HVM_CONFIG ioctl kvm: whitelist struct kvm_vcpu_arch arm: Implement thread_struct whitelist for hardened usercopy arm64: Implement thread_struct whitelist for hardened usercopy x86: Implement thread_struct whitelist for hardened usercopy fork: Provide usercopy whitelisting for task_struct fork: Define usercopy region in thread_stack slab caches fork: Define usercopy region in mm_struct slab caches net: Restrict unwhitelisted proto caches to size 0 sctp: Copy struct sctp_sock.autoclose to userspace using put_user() sctp: Define usercopy region in SCTP proto slab cache caif: Define usercopy region in caif proto slab cache ip: Define usercopy region in IP proto slab cache net: Define usercopy region in struct proto slab cache scsi: Define usercopy region in scsi_sense_cache slab cache cifs: Define usercopy region in cifs_request slab cache vxfs: Define usercopy region in vxfs_inode slab cache ufs: Define usercopy region in ufs_inode_cache slab cache ... |
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Linus Torvalds
|
4bf772b146 |
drm/graphics pull request for v4.16-rc1
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|
Linus Torvalds
|
3879ae653a |
The core framework has a handful of patches this time around, mostly due
to the clk rate protection support added by Jerome Brunet. This feature
will allow consumers to lock in a certain rate on the output of a clk so
that things like audio playback don't hear pops when the clk frequency
changes due to shared parent clks changing rates. Currently the clk
API doesn't guarantee the rate of a clk stays at the rate you request
after clk_set_rate() is called, so this new API will allow drivers
to express that requirement. Beyond this, the core got some debugfs
pretty printing patches and a couple minor non-critical fixes.
Looking outside of the core framework diff we have some new driver
additions and the removal of a legacy TI clk driver. Both of these hit
high in the dirstat. Also, the removal of the asm-generic/clkdev.h file
causes small one-liners in all the architecture Kbuild files. Overall, the
driver diff seems to be the normal stuff that comes all the time to
fix little problems here and there and to support new hardware.
Core:
- Clk rate protection
- Symbolic clk flags in debugfs output
- Clk registration enabled clks while doing bookkeeping updates
New Drivers:
- Spreadtrum SC9860
- HiSilicon hi3660 stub
- Qualcomm A53 PLL, SPMI clkdiv, and MSM8916 APCS
- Amlogic Meson-AXG
- ASPEED BMC
Removed Drivers:
- TI OMAP 3xxx legacy clk (non-DT) support
- asm*/clkdev.h got removed (not really a driver)
Updates:
- Renesas FDP1-0 module clock on R-Car M3-W
- Renesas LVDS module clock on R-Car V3M
- Misc fixes to pr_err() prints
- Qualcomm MSM8916 audio fixes
- Qualcomm IPQ8074 rounded out support for more peripherals
- Qualcomm Alpha PLL variants
- Divider code was using container_of() on bad pointers
- Allwinner DE2 clks on H3
- Amlogic minor data fixes and dropping of CLK_IGNORE_UNUSED
- Mediatek clk driver compile test support
- AT91 PMC clk suspend/resume restoration support
- PLL issues fixed on si5351
- Broadcom IProc PLL calculation updates
- DVFS support for Armada mvebu CPU clks
- Allwinner fixed post-divider support
- TI clkctrl fixes and support for newer SoCs
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"The core framework has a handful of patches this time around, mostly
due to the clk rate protection support added by Jerome Brunet.
This feature will allow consumers to lock in a certain rate on the
output of a clk so that things like audio playback don't hear pops
when the clk frequency changes due to shared parent clks changing
rates. Currently the clk API doesn't guarantee the rate of a clk stays
at the rate you request after clk_set_rate() is called, so this new
API will allow drivers to express that requirement.
Beyond this, the core got some debugfs pretty printing patches and a
couple minor non-critical fixes.
Looking outside of the core framework diff we have some new driver
additions and the removal of a legacy TI clk driver. Both of these hit
high in the dirstat. Also, the removal of the asm-generic/clkdev.h
file causes small one-liners in all the architecture Kbuild files.
Overall, the driver diff seems to be the normal stuff that comes all
the time to fix little problems here and there and to support new
hardware.
Summary:
Core:
- Clk rate protection
- Symbolic clk flags in debugfs output
- Clk registration enabled clks while doing bookkeeping updates
New Drivers:
- Spreadtrum SC9860
- HiSilicon hi3660 stub
- Qualcomm A53 PLL, SPMI clkdiv, and MSM8916 APCS
- Amlogic Meson-AXG
- ASPEED BMC
Removed Drivers:
- TI OMAP 3xxx legacy clk (non-DT) support
- asm*/clkdev.h got removed (not really a driver)
Updates:
- Renesas FDP1-0 module clock on R-Car M3-W
- Renesas LVDS module clock on R-Car V3M
- Misc fixes to pr_err() prints
- Qualcomm MSM8916 audio fixes
- Qualcomm IPQ8074 rounded out support for more peripherals
- Qualcomm Alpha PLL variants
- Divider code was using container_of() on bad pointers
- Allwinner DE2 clks on H3
- Amlogic minor data fixes and dropping of CLK_IGNORE_UNUSED
- Mediatek clk driver compile test support
- AT91 PMC clk suspend/resume restoration support
- PLL issues fixed on si5351
- Broadcom IProc PLL calculation updates
- DVFS support for Armada mvebu CPU clks
- Allwinner fixed post-divider support
- TI clkctrl fixes and support for newer SoCs"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (125 commits)
clk: aspeed: Handle inverse polarity of USB port 1 clock gate
clk: aspeed: Fix return value check in aspeed_cc_init()
clk: aspeed: Add reset controller
clk: aspeed: Register gated clocks
clk: aspeed: Add platform driver and register PLLs
clk: aspeed: Register core clocks
clk: Add clock driver for ASPEED BMC SoCs
clk: mediatek: adjust dependency of reset.c to avoid unexpectedly being built
clk: fix reentrancy of clk_enable() on UP systems
clk: meson-axg: fix potential NULL dereference in axg_clkc_probe()
clk: Simplify debugfs registration
clk: Fix debugfs_create_*() usage
clk: Show symbolic clock flags in debugfs
clk: renesas: r8a7796: Add FDP clock
clk: Move __clk_{get,put}() into private clk.h API
clk: sunxi: Use CLK_IS_CRITICAL flag for critical clks
clk: Improve flags doc for of_clk_detect_critical()
arch: Remove clkdev.h asm-generic from Kbuild
clk: sunxi-ng: a83t: Add M divider to TCON1 clock
clk: Prepare to remove asm-generic/clkdev.h
...
|
||
|
Linus Torvalds
|
ab486bc9a5 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk updates from Petr Mladek:
- Add a console_msg_format command line option:
The value "default" keeps the old "[time stamp] text\n" format. The
value "syslog" allows to see the syslog-like "<log
level>[timestamp] text" format.
This feature was requested by people doing regression tests, for
example, 0day robot. They want to have both filtered and full logs
at hands.
- Reduce the risk of softlockup:
Pass the console owner in a busy loop.
This is a new approach to the old problem. It was first proposed by
Steven Rostedt on Kernel Summit 2017. It marks a context in which
the console_lock owner calls console drivers and could not sleep.
On the other side, printk() callers could detect this state and use
a busy wait instead of a simple console_trylock(). Finally, the
console_lock owner checks if there is a busy waiter at the end of
the special context and eventually passes the console_lock to the
waiter.
The hand-off works surprisingly well and helps in many situations.
Well, there is still a possibility of the softlockup, for example,
when the flood of messages stops and the last owner still has too
much to flush.
There is increasing number of people having problems with
printk-related softlockups. We might eventually need to get better
solution. Anyway, this looks like a good start and promising
direction.
- Do not allow to schedule in console_unlock() called from printk():
This reverts an older controversial commit. The reschedule helped
to avoid softlockups. But it also slowed down the console output.
This patch is obsoleted by the new console waiter logic described
above. In fact, the reschedule made the hand-off less effective.
- Deprecate "%pf" and "%pF" format specifier:
It was needed on ia64, ppc64 and parisc64 to dereference function
descriptors and show the real function address. It is done
transparently by "%ps" and "pS" format specifier now.
Sergey Senozhatsky found that all the function descriptors were in
a special elf section and could be easily detected.
- Remove printk_symbol() API:
It has been obsoleted by "%pS" format specifier, and this change
helped to remove few continuous lines and a less intuitive old API.
- Remove redundant memsets:
Sergey removed unnecessary memset when processing printk.devkmsg
command line option.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk: (27 commits)
printk: drop redundant devkmsg_log_str memsets
printk: Never set console_may_schedule in console_trylock()
printk: Hide console waiter logic into helpers
printk: Add console owner and waiter logic to load balance console writes
kallsyms: remove print_symbol() function
checkpatch: add pF/pf deprecation warning
symbol lookup: introduce dereference_symbol_descriptor()
parisc64: Add .opd based function descriptor dereference
powerpc64: Add .opd based function descriptor dereference
ia64: Add .opd based function descriptor dereference
sections: split dereference_function_descriptor()
openrisc: Fix conflicting types for _exext and _stext
lib: do not use print_symbol()
irq debug: do not use print_symbol()
sysfs: do not use print_symbol()
drivers: do not use print_symbol()
x86: do not use print_symbol()
unicore32: do not use print_symbol()
sh: do not use print_symbol()
mn10300: do not use print_symbol()
...
|
||
|
Linus Torvalds
|
2bed26606b |
DeviceTree updates for 4.16:
- Convert to use memblock_virt_alloc in DT code which supports bootmem
arches. With this we can remove the arch specific
early_init_dt_alloc_memory_arch() functions.
- Enable running the DT unittests on UML
- Use SPDX license tags on DT files
- Fix early FDT kconfig ifdef logic
- Clean-up unittest Makefile
- Fix function comment for of_irq_parse_raw
- Add missing documentation for linux,initrd-{start,end} properties
- Clean-up of binding examples using uppercase hex
- Add trivial devices W83773G and Infineon TLV493D-A1B6
- Add missing STM32 SoC bindings
- Various small binding doc fixes
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Merge tag 'devicetree-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
- Convert to use memblock_virt_alloc in DT code which supports
bootmem arches. With this we can remove the arch specific
early_init_dt_alloc_memory_arch() functions.
- Enable running the DT unittests on UML
- Use SPDX license tags on DT files
- Fix early FDT kconfig ifdef logic
- Clean-up unittest Makefile
- Fix function comment for of_irq_parse_raw
- Add missing documentation for linux,initrd-{start,end} properties
- Clean-up of binding examples using uppercase hex
- Add trivial devices W83773G and Infineon TLV493D-A1B6
- Add missing STM32 SoC bindings
- Various small binding doc fixes
* tag 'devicetree-for-4.16' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (23 commits)
xtensa: remove arch specific early DT functions
x86: remove arch specific early_init_dt_alloc_memory_arch
nios2: remove arch specific early_init_dt_alloc_memory_arch
mips: remove arch specific early_init_dt_alloc_memory_arch
metag: remove arch specific early DT functions
cris: remove arch specific early DT functions
libfdt: remove unnecessary include directive from <linux/libfdt.h>
of: unittest: refactor Makefile
of/fdt: use memblock_virt_alloc for early alloc
of: Use SPDX license tag for DT files
of/fdt: Fix #ifdef dependency of early flattree declarations
dt-bindings: h8300 clocksource: correct spelling of pulse
dt-bindings: imx6q-pcie: Add required property for i.MX6SX
mmc: Don't reference Linux-specific OF_GPIO_ACTIVE_LOW flag in DT binding
dt-bindings: Use lower case hex in unit-addresses
dt-bindings: display: panel: Fix compatible string for Toshiba LT089AC29000
dt-bindings: Add Infineon TLV493D-A1B6
dt-bindings: mailbox: ti,message-manager: Fix interrupt name error
dt-bindings: chosen: Document linux,initrd-{start,end}
dt-bindings: arm: document supported STM32 SoC family
...
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||
|
Linus Torvalds
|
f6cff79f1d |
Char/Misc driver patches for 4.16-rc1
Here is the big pull request for char/misc drivers for 4.16-rc1. There's a lot of stuff in here. Three new driver subsystems were added for various types of hardware busses: - siox - slimbus - soundwire as well as a new vboxguest subsystem for the VirtualBox hypervisor drivers. There's also big updates from the FPGA subsystem, lots of Android binder fixes, the usual handful of hyper-v updates, and lots of other smaller driver updates. All of these have been in linux-next for a long time, with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWnLuZw8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynS4QCcCrPmwfD5PJwaF+q2dPfyKaflkQMAn0x6Wd+u Gw3Z2scgjETUpwJ9ilnL =xcQ0 -----END PGP SIGNATURE----- Merge tag 'char-misc-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big pull request for char/misc drivers for 4.16-rc1. There's a lot of stuff in here. Three new driver subsystems were added for various types of hardware busses: - siox - slimbus - soundwire as well as a new vboxguest subsystem for the VirtualBox hypervisor drivers. There's also big updates from the FPGA subsystem, lots of Android binder fixes, the usual handful of hyper-v updates, and lots of other smaller driver updates. All of these have been in linux-next for a long time, with no reported issues" * tag 'char-misc-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (155 commits) char: lp: use true or false for boolean values android: binder: use VM_ALLOC to get vm area android: binder: Use true and false for boolean values lkdtm: fix handle_irq_event symbol for INT_HW_IRQ_EN EISA: Delete error message for a failed memory allocation in eisa_probe() EISA: Whitespace cleanup misc: remove AVR32 dependencies virt: vbox: Add error mapping for VERR_INVALID_NAME and VERR_NO_MORE_FILES soundwire: Fix a signedness bug uio_hv_generic: fix new type mismatch warnings uio_hv_generic: fix type mismatch warnings auxdisplay: img-ascii-lcd: add missing MODULE_DESCRIPTION/AUTHOR/LICENSE uio_hv_generic: add rescind support uio_hv_generic: check that host supports monitor page uio_hv_generic: create send and receive buffers uio: document uio_hv_generic regions doc: fix documentation about uio_hv_generic vmbus: add monitor_id and subchannel_id to sysfs per channel vmbus: fix ABI documentation uio_hv_generic: use ISR callback method ... |
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Linus Torvalds
|
47fcc0360c |
Driver Core updates for 4.16-rc1
Here is the set of "big" driver core patches for 4.16-rc1. The majority of the work here is in the firmware subsystem, with reworks to try to attempt to make the code easier to handle in the long run, but no functional change. There's also some tree-wide sysfs attribute fixups with lots of acks from the various subsystem maintainers, as well as a handful of other normal fixes and changes. And finally, some license cleanups for the driver core and sysfs code. All have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCWnLvPw8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynNzACgkzjPoBytJWbpWFt6SR6L33/u4kEAnRFvVCGL s6ygQPQhZIjKk2Lxa2hC =Zihy -----END PGP SIGNATURE----- Merge tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the set of "big" driver core patches for 4.16-rc1. The majority of the work here is in the firmware subsystem, with reworks to try to attempt to make the code easier to handle in the long run, but no functional change. There's also some tree-wide sysfs attribute fixups with lots of acks from the various subsystem maintainers, as well as a handful of other normal fixes and changes. And finally, some license cleanups for the driver core and sysfs code. All have been in linux-next for a while with no reported issues" * tag 'driver-core-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (48 commits) device property: Define type of PROPERTY_ENRTY_*() macros device property: Reuse property_entry_free_data() device property: Move property_entry_free_data() upper firmware: Fix up docs referring to FIRMWARE_IN_KERNEL firmware: Drop FIRMWARE_IN_KERNEL Kconfig option USB: serial: keyspan: Drop firmware Kconfig options sysfs: remove DEBUG defines sysfs: use SPDX identifiers drivers: base: add coredump driver ops sysfs: add attribute specification for /sysfs/devices/.../coredump test_firmware: fix missing unlock on error in config_num_requests_store() test_firmware: make local symbol test_fw_config static sysfs: turn WARN() into pr_warn() firmware: Fix a typo in fallback-mechanisms.rst treewide: Use DEVICE_ATTR_WO treewide: Use DEVICE_ATTR_RO treewide: Use DEVICE_ATTR_RW sysfs.h: Use octal permissions component: add debugfs support bus: simple-pm-bus: convert bool SIMPLE_PM_BUS to tristate ... |
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Linus Torvalds
|
73da9e1a9f |
Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton: - misc fixes - ocfs2 updates - most of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (118 commits) mm: remove PG_highmem description tools, vm: new option to specify kpageflags file mm/swap.c: make functions and their kernel-doc agree mm, memory_hotplug: fix memmap initialization mm: correct comments regarding do_fault_around() mm: numa: do not trap faults on shared data section pages. hugetlb, mbind: fall back to default policy if vma is NULL hugetlb, mempolicy: fix the mbind hugetlb migration mm, hugetlb: further simplify hugetlb allocation API mm, hugetlb: get rid of surplus page accounting tricks mm, hugetlb: do not rely on overcommit limit during migration mm, hugetlb: integrate giga hugetlb more naturally to the allocation path mm, hugetlb: unify core page allocation accounting and initialization mm/memcontrol.c: try harder to decrease [memory,memsw].limit_in_bytes mm/memcontrol.c: make local symbol static mm/hmm: fix uninitialized use of 'entry' in hmm_vma_walk_pmd() include/linux/mmzone.h: fix explanation of lower bits in the SPARSEMEM mem_map pointer mm/compaction.c: fix comment for try_to_compact_pages() mm/page_ext.c: make page_ext_init a noop when CONFIG_PAGE_EXTENSION but nothing uses it zsmalloc: use U suffix for negative literals being shifted ... |
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Kirill A. Shutemov
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86fa949b05 |
x86/mm: provide pmdp_establish() helper
We need an atomic way to setup pmd page table entry, avoiding races with CPU setting dirty/accessed bits. This is required to implement pmdp_invalidate() that doesn't lose these bits. On PAE we can avoid expensive cmpxchg8b for cases when new page table entry is not present. If it's present, fallback to cpmxchg loop. [akpm@linux-foundation.org: add missing `do' to do-while loop] Link: http://lkml.kernel.org/r/20171213105756.69879-10-kirill.shutemov@linux.intel.com Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Pavel Tatashin
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2e3ca40f03 |
mm: relax deferred struct page requirements
There is no need to have ARCH_SUPPORTS_DEFERRED_STRUCT_PAGE_INIT, as all the page initialization code is in common code. Also, there is no need to depend on MEMORY_HOTPLUG, as initialization code does not really use hotplug memory functionality. So, we can remove this requirement as well. This patch allows to use deferred struct page initialization on all platforms with memblock allocator. Tested on x86, arm64, and sparc. Also, verified that code compiles on PPC with CONFIG_MEMORY_HOTPLUG disabled. Link: http://lkml.kernel.org/r/20171117014601.31606-1-pasha.tatashin@oracle.com Signed-off-by: Pavel Tatashin <pasha.tatashin@oracle.com> Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com> [s390] Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Steven Sistare <steven.sistare@oracle.com> Cc: Daniel Jordan <daniel.m.jordan@oracle.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Cc: Reza Arbab <arbab@linux.vnet.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Mel Gorman <mgorman@techsingularity.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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b2fe5fa686 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
1) Significantly shrink the core networking routing structures. Result
of http://vger.kernel.org/~davem/seoul2017_netdev_keynote.pdf
2) Add netdevsim driver for testing various offloads, from Jakub
Kicinski.
3) Support cross-chip FDB operations in DSA, from Vivien Didelot.
4) Add a 2nd listener hash table for TCP, similar to what was done for
UDP. From Martin KaFai Lau.
5) Add eBPF based queue selection to tun, from Jason Wang.
6) Lockless qdisc support, from John Fastabend.
7) SCTP stream interleave support, from Xin Long.
8) Smoother TCP receive autotuning, from Eric Dumazet.
9) Lots of erspan tunneling enhancements, from William Tu.
10) Add true function call support to BPF, from Alexei Starovoitov.
11) Add explicit support for GRO HW offloading, from Michael Chan.
12) Support extack generation in more netlink subsystems. From Alexander
Aring, Quentin Monnet, and Jakub Kicinski.
13) Add 1000BaseX, flow control, and EEE support to mvneta driver. From
Russell King.
14) Add flow table abstraction to netfilter, from Pablo Neira Ayuso.
15) Many improvements and simplifications to the NFP driver bpf JIT,
from Jakub Kicinski.
16) Support for ipv6 non-equal cost multipath routing, from Ido
Schimmel.
17) Add resource abstration to devlink, from Arkadi Sharshevsky.
18) Packet scheduler classifier shared filter block support, from Jiri
Pirko.
19) Avoid locking in act_csum, from Davide Caratti.
20) devinet_ioctl() simplifications from Al viro.
21) More TCP bpf improvements from Lawrence Brakmo.
22) Add support for onlink ipv6 route flag, similar to ipv4, from David
Ahern.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1925 commits)
tls: Add support for encryption using async offload accelerator
ip6mr: fix stale iterator
net/sched: kconfig: Remove blank help texts
openvswitch: meter: Use 64-bit arithmetic instead of 32-bit
tcp_nv: fix potential integer overflow in tcpnv_acked
r8169: fix RTL8168EP take too long to complete driver initialization.
qmi_wwan: Add support for Quectel EP06
rtnetlink: enable IFLA_IF_NETNSID for RTM_NEWLINK
ipmr: Fix ptrdiff_t print formatting
ibmvnic: Wait for device response when changing MAC
qlcnic: fix deadlock bug
tcp: release sk_frag.page in tcp_disconnect
ipv4: Get the address of interface correctly.
net_sched: gen_estimator: fix lockdep splat
net: macb: Handle HRESP error
net/mlx5e: IPoIB, Fix copy-paste bug in flow steering refactoring
ipv6: addrconf: break critical section in addrconf_verify_rtnl()
ipv6: change route cache aging logic
i40e/i40evf: Update DESC_NEEDED value to reflect larger value
bnxt_en: cleanup DIM work on device shutdown
...
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Linus Torvalds
|
a103950e0d |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"API:
- Enforce the setting of keys for keyed aead/hash/skcipher
algorithms.
- Add multibuf speed tests in tcrypt.
Algorithms:
- Improve performance of sha3-generic.
- Add native sha512 support on arm64.
- Add v8.2 Crypto Extentions version of sha3/sm3 on arm64.
- Avoid hmac nesting by requiring underlying algorithm to be unkeyed.
- Add cryptd_max_cpu_qlen module parameter to cryptd.
Drivers:
- Add support for EIP97 engine in inside-secure.
- Add inline IPsec support to chelsio.
- Add RevB core support to crypto4xx.
- Fix AEAD ICV check in crypto4xx.
- Add stm32 crypto driver.
- Add support for BCM63xx platforms in bcm2835 and remove bcm63xx.
- Add Derived Key Protocol (DKP) support in caam.
- Add Samsung Exynos True RNG driver.
- Add support for Exynos5250+ SoCs in exynos PRNG driver"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (166 commits)
crypto: picoxcell - Fix error handling in spacc_probe()
crypto: arm64/sha512 - fix/improve new v8.2 Crypto Extensions code
crypto: arm64/sm3 - new v8.2 Crypto Extensions implementation
crypto: arm64/sha3 - new v8.2 Crypto Extensions implementation
crypto: testmgr - add new testcases for sha3
crypto: sha3-generic - export init/update/final routines
crypto: sha3-generic - simplify code
crypto: sha3-generic - rewrite KECCAK transform to help the compiler optimize
crypto: sha3-generic - fixes for alignment and big endian operation
crypto: aesni - handle zero length dst buffer
crypto: artpec6 - remove select on non-existing CRYPTO_SHA384
hwrng: bcm2835 - Remove redundant dev_err call in bcm2835_rng_probe()
crypto: stm32 - remove redundant dev_err call in stm32_cryp_probe()
crypto: axis - remove unnecessary platform_get_resource() error check
crypto: testmgr - test misuse of result in ahash
crypto: inside-secure - make function safexcel_try_push_requests static
crypto: aes-generic - fix aes-generic regression on powerpc
crypto: chelsio - Fix indentation warning
crypto: arm64/sha1-ce - get rid of literal pool
crypto: arm64/sha2-ce - move the round constant table to .rodata section
...
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Linus Torvalds
|
ae0cb7be35 |
Merge branch 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull tpm updates from James Morris:
- reduce polling delays in tpm_tis
- support retrieving TPM 2.0 Event Log through EFI before
ExitBootServices
- replace tpm-rng.c with a hwrng device managed by the driver for each
TPM device
- TPM resource manager synthesizes TPM_RC_COMMAND_CODE response instead
of returning -EINVAL for unknown TPM commands. This makes user space
more sound.
- CLKRUN fixes:
* Keep #CLKRUN disable through the entier TPM command/response flow
* Check whether #CLKRUN is enabled before disabling and enabling it
again because enabling it breaks PS/2 devices on a system where it
is disabled
* 'next-tpm' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
tpm: remove unused variables
tpm: remove unused data fields from I2C and OF device ID tables
tpm: only attempt to disable the LPC CLKRUN if is already enabled
tpm: follow coding style for variable declaration in tpm_tis_core_init()
tpm: delete the TPM_TIS_CLK_ENABLE flag
tpm: Update MAINTAINERS for Jason Gunthorpe
tpm: Keep CLKRUN enabled throughout the duration of transmit_cmd()
tpm_tis: Move ilb_base_addr to tpm_tis_data
tpm2-cmd: allow more attempts for selftest execution
tpm: return a TPM_RC_COMMAND_CODE response if command is not implemented
tpm: Move Linux RNG connection to hwrng
tpm: use struct tpm_chip for tpm_chip_find_get()
tpm: parse TPM event logs based on EFI table
efi: call get_event_log before ExitBootServices
tpm: add event log format version
tpm: rename event log provider files
tpm: move tpm_eventlog.h outside of drivers folder
tpm: use tpm_msleep() value as max delay
tpm: reduce tpm polling delay in tpm_tis_core
tpm: move wait_for_tpm_stat() to respective driver files
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Linus Torvalds
|
e1c70f3238 |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching
Pull livepatching updates from Jiri Kosina: - handle 'infinitely'-long sleeping tasks, from Miroslav Benes - remove 'immediate' feature, as it turns out it doesn't provide the originally expected semantics, and brings more issues than value * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/livepatching: livepatch: add locking to force and signal functions livepatch: Remove immediate feature livepatch: force transition to finish livepatch: send a fake signal to all blocking tasks |
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Linus Torvalds
|
2382dc9a3e |
dma mapping changes for Linux 4.16:
This pull requests contains a consolidation of the generic no-IOMMU code,
a well as the glue code for swiotlb. All the code is based on the x86
implementation with hooks to allow all architectures that aren't cache
coherent to use it. The x86 conversion itself has been deferred because
the x86 maintainers were a little busy in the last months.
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Merge tag 'dma-mapping-4.16' of git://git.infradead.org/users/hch/dma-mapping
Pull dma mapping updates from Christoph Hellwig:
"Except for a runtime warning fix from Christian this is all about
consolidation of the generic no-IOMMU code, a well as the glue code
for swiotlb.
All the code is based on the x86 implementation with hooks to allow
all architectures that aren't cache coherent to use it.
The x86 conversion itself has been deferred because the x86
maintainers were a little busy in the last months"
* tag 'dma-mapping-4.16' of git://git.infradead.org/users/hch/dma-mapping: (57 commits)
MAINTAINERS: add the iommu list for swiotlb and xen-swiotlb
arm64: use swiotlb_alloc and swiotlb_free
arm64: replace ZONE_DMA with ZONE_DMA32
mips: use swiotlb_{alloc,free}
mips/netlogic: remove swiotlb support
tile: use generic swiotlb_ops
tile: replace ZONE_DMA with ZONE_DMA32
unicore32: use generic swiotlb_ops
ia64: remove an ifdef around the content of pci-dma.c
ia64: clean up swiotlb support
ia64: use generic swiotlb_ops
ia64: replace ZONE_DMA with ZONE_DMA32
swiotlb: remove various exports
swiotlb: refactor coherent buffer allocation
swiotlb: refactor coherent buffer freeing
swiotlb: wire up ->dma_supported in swiotlb_dma_ops
swiotlb: add common swiotlb_map_ops
swiotlb: rename swiotlb_free to swiotlb_exit
x86: rename swiotlb_dma_ops
powerpc: rename swiotlb_dma_ops
...
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Linus Torvalds
|
168fe32a07 |
Merge branch 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull poll annotations from Al Viro: "This introduces a __bitwise type for POLL### bitmap, and propagates the annotations through the tree. Most of that stuff is as simple as 'make ->poll() instances return __poll_t and do the same to local variables used to hold the future return value'. Some of the obvious brainos found in process are fixed (e.g. POLLIN misspelled as POLL_IN). At that point the amount of sparse warnings is low and most of them are for genuine bugs - e.g. ->poll() instance deciding to return -EINVAL instead of a bitmap. I hadn't touched those in this series - it's large enough as it is. Another problem it has caught was eventpoll() ABI mess; select.c and eventpoll.c assumed that corresponding POLL### and EPOLL### were equal. That's true for some, but not all of them - EPOLL### are arch-independent, but POLL### are not. The last commit in this series separates userland POLL### values from the (now arch-independent) kernel-side ones, converting between them in the few places where they are copied to/from userland. AFAICS, this is the least disruptive fix preserving poll(2) ABI and making epoll() work on all architectures. As it is, it's simply broken on sparc - try to give it EPOLLWRNORM and it will trigger only on what would've triggered EPOLLWRBAND on other architectures. EPOLLWRBAND and EPOLLRDHUP, OTOH, are never triggered at all on sparc. With this patch they should work consistently on all architectures" * 'misc.poll' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (37 commits) make kernel-side POLL... arch-independent eventpoll: no need to mask the result of epi_item_poll() again eventpoll: constify struct epoll_event pointers debugging printk in sg_poll() uses %x to print POLL... bitmap annotate poll(2) guts 9p: untangle ->poll() mess ->si_band gets POLL... bitmap stored into a user-visible long field ring_buffer_poll_wait() return value used as return value of ->poll() the rest of drivers/*: annotate ->poll() instances media: annotate ->poll() instances fs: annotate ->poll() instances ipc, kernel, mm: annotate ->poll() instances net: annotate ->poll() instances apparmor: annotate ->poll() instances tomoyo: annotate ->poll() instances sound: annotate ->poll() instances acpi: annotate ->poll() instances crypto: annotate ->poll() instances block: annotate ->poll() instances x86: annotate ->poll() instances ... |
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Linus Torvalds
|
d4173023e6 |
Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull siginfo cleanups from Eric Biederman: "Long ago when 2.4 was just a testing release copy_siginfo_to_user was made to copy individual fields to userspace, possibly for efficiency and to ensure initialized values were not copied to userspace. Unfortunately the design was complex, it's assumptions unstated, and humans are fallible and so while it worked much of the time that design failed to ensure unitialized memory is not copied to userspace. This set of changes is part of a new design to clean up siginfo and simplify things, and hopefully make the siginfo handling robust enough that a simple inspection of the code can be made to ensure we don't copy any unitializied fields to userspace. The design is to unify struct siginfo and struct compat_siginfo into a single definition that is shared between all architectures so that anyone adding to the set of information shared with struct siginfo can see the whole picture. Hopefully ensuring all future si_code assignments are arch independent. The design is to unify copy_siginfo_to_user32 and copy_siginfo_from_user32 so that those function are complete and cope with all of the different cases documented in signinfo_layout. I don't think there was a single implementation of either of those functions that was complete and correct before my changes unified them. The design is to introduce a series of helpers including force_siginfo_fault that take the values that are needed in struct siginfo and build the siginfo structure for their callers. Ensuring struct siginfo is built correctly. The remaining work for 4.17 (unless someone thinks it is post -rc1 material) is to push usage of those helpers down into the architectures so that architecture specific code will not need to deal with the fiddly work of intializing struct siginfo, and then when struct siginfo is guaranteed to be fully initialized change copy siginfo_to_user into a simple wrapper around copy_to_user. Further there is work in progress on the issues that have been documented requires arch specific knowledge to sort out. The changes below fix or at least document all of the issues that have been found with siginfo generation. Then proceed to unify struct siginfo the 32 bit helpers that copy siginfo to and from userspace, and generally clean up anything that is not arch specific with regards to siginfo generation. It is a lot but with the unification you can of siginfo you can already see the code reduction in the kernel" * 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (45 commits) signal/memory-failure: Use force_sig_mceerr and send_sig_mceerr mm/memory_failure: Remove unused trapno from memory_failure signal/ptrace: Add force_sig_ptrace_errno_trap and use it where needed signal/powerpc: Remove unnecessary signal_code parameter of do_send_trap signal: Helpers for faults with specialized siginfo layouts signal: Add send_sig_fault and force_sig_fault signal: Replace memset(info,...) with clear_siginfo for clarity signal: Don't use structure initializers for struct siginfo signal/arm64: Better isolate the COMPAT_TASK portion of ptrace_hbptriggered ptrace: Use copy_siginfo in setsiginfo and getsiginfo signal: Unify and correct copy_siginfo_to_user32 signal: Remove the code to clear siginfo before calling copy_siginfo_from_user32 signal: Unify and correct copy_siginfo_from_user32 signal/blackfin: Remove pointless UID16_SIGINFO_COMPAT_NEEDED signal/blackfin: Move the blackfin specific si_codes to asm-generic/siginfo.h signal/tile: Move the tile specific si_codes to asm-generic/siginfo.h signal/frv: Move the frv specific si_codes to asm-generic/siginfo.h signal/ia64: Move the ia64 specific si_codes to asm-generic/siginfo.h signal/powerpc: Remove redefinition of NSIGTRAP on powerpc signal: Move addr_lsb into the _sigfault union for clarity ... |
||
|
Linus Torvalds
|
72906f3893 |
Merge branch 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 hyperv update from Ingo Molnar: "Enable PCID support on Hyper-V guests" * 'x86-hyperv-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/hyperv: Stop suppressing X86_FEATURE_PCID |
||
|
Linus Torvalds
|
3ccabd6d9d |
Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 cleanups from Ingo Molnar: "Misc cleanups" * 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86: Remove unused IOMMU_STRESS Kconfig x86/extable: Mark exception handler functions visible x86/timer: Don't inline __const_udelay x86/headers: Remove duplicate #includes |
||
|
Linus Torvalds
|
5289d3005a |
Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 apic cleanup from Ingo Molnar: "A single change simplifying the APIC code bit" * 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/apic: Remove local var in flat_send_IPI_allbutself() |
||
|
Linus Torvalds
|
a1c75e17e7 |
Merge branch 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 RAS updates from Ingo Molnar: - various AMD SMCA error parsing/reporting improvements (Yazen Ghannam) - extend Intel CMCI error reporting to more cases (Xie XiuQi) * 'ras-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/MCE: Make correctable error detection look at the Deferred bit x86/MCE: Report only DRAM ECC as memory errors on AMD systems x86/MCE/AMD: Define a function to get SMCA bank type x86/mce/AMD: Don't set DEF_INT_TYPE in MSR_CU_DEF_ERR on SMCA systems x86/MCE: Extend table to report action optional errors through CMCI too |
||
|
Linus Torvalds
|
d8b91dde38 |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"Kernel side changes:
- Clean up the x86 instruction decoder (Masami Hiramatsu)
- Add new uprobes optimization for PUSH instructions on x86 (Yonghong
Song)
- Add MSR_IA32_THERM_STATUS to the MSR events (Stephane Eranian)
- Fix misc bugs, update documentation, plus various cleanups (Jiri
Olsa)
There's a large number of tooling side improvements:
- Intel-PT/BTS improvements (Adrian Hunter)
- Numerous 'perf trace' improvements (Arnaldo Carvalho de Melo)
- Introduce an errno code to string facility (Hendrik Brueckner)
- Various build system improvements (Jiri Olsa)
- Add support for CoreSight trace decoding by making the perf tools
use the external openCSD (Mathieu Poirier, Tor Jeremiassen)
- Add ARM Statistical Profiling Extensions (SPE) support (Kim
Phillips)
- libtraceevent updates (Steven Rostedt)
- Intel vendor event JSON updates (Andi Kleen)
- Introduce 'perf report --mmaps' and 'perf report --tasks' to show
info present in 'perf.data' (Jiri Olsa, Arnaldo Carvalho de Melo)
- Add infrastructure to record first and last sample time to the
perf.data file header, so that when processing all samples in a
'perf record' session, such as when doing build-id processing, or
when specifically requesting that that info be recorded, use that
in 'perf report --time', that also got support for percent slices
in addition to absolute ones.
I.e. now it is possible to ask for the samples in the 10%-20% time
slice of a perf.data file (Jin Yao)
- Allow system wide 'perf stat --per-thread', sorting the result (Jin
Yao)
E.g.:
[root@jouet ~]# perf stat --per-thread --metrics IPC
^C
Performance counter stats for 'system wide':
make-22229 23,012,094,032 inst_retired.any # 0.8 IPC
cc1-22419 692,027,497 inst_retired.any # 0.8 IPC
gcc-22418 328,231,855 inst_retired.any # 0.9 IPC
cc1-22509 220,853,647 inst_retired.any # 0.8 IPC
gcc-22486 199,874,810 inst_retired.any # 1.0 IPC
as-22466 177,896,365 inst_retired.any # 0.9 IPC
cc1-22465 150,732,374 inst_retired.any # 0.8 IPC
gcc-22508 112,555,593 inst_retired.any # 0.9 IPC
cc1-22487 108,964,079 inst_retired.any # 0.7 IPC
qemu-system-x86-2697 21,330,550 inst_retired.any # 0.3 IPC
systemd-journal-551 20,642,951 inst_retired.any # 0.4 IPC
docker-containe-17651 9,552,892 inst_retired.any # 0.5 IPC
dockerd-current-9809 7,528,586 inst_retired.any # 0.5 IPC
make-22153 12,504,194,380 inst_retired.any # 0.8 IPC
python2-22429 12,081,290,954 inst_retired.any # 0.8 IPC
<SNIP>
python2-22429 15,026,328,103 cpu_clk_unhalted.thread
cc1-22419 826,660,193 cpu_clk_unhalted.thread
gcc-22418 365,321,295 cpu_clk_unhalted.thread
cc1-22509 279,169,362 cpu_clk_unhalted.thread
gcc-22486 210,156,950 cpu_clk_unhalted.thread
<SNIP>
5.638075538 seconds time elapsed
[root@jouet ~]#
- Improve shell auto-completion of perf events (Jin Yao)
- 'perf probe' improvements (Masami Hiramatsu)
- Improve PMU infrastructure to support amp64's ThunderX2
implementation defined core events (Ganapatrao Kulkarni)
- Various annotation related improvements and fixes (Thomas Richter)
- Clarify usage of 'overwrite' and 'backward' in the evlist/mmap
code, removing the 'overwrite' parameter from several functions as
it was always used it as 'false' (Wang Nan)
- Fix/improve 'perf record' reverse recording support (Wang Nan)
- Improve command line options documentation (Sihyeon Jang)
- Optimize sample parsing for ordering events, where we don't need to
parse all the PERF_SAMPLE_ bits, just the ones leading to the
timestamp needed to reorder events (Jiri Olsa)
- Generalize the annotation code to support other source information
besides objdump/DWARF obtained ones, starting with python scripts,
that will is slated to be merged soon (Jiri Olsa)
- ... and a lot more that I failed to list, see the shortlog and
changelog for details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (262 commits)
perf trace beauty flock: Move to separate object file
perf evlist: Remove fcntl.h from evlist.h
perf trace beauty futex: Beautify FUTEX_BITSET_MATCH_ANY
perf trace: Do not print from time delta for interrupted syscall lines
perf trace: Add --print-sample
perf bpf: Remove misplaced __maybe_unused attribute
MAINTAINERS: Adding entry for CoreSight trace decoding
perf tools: Add mechanic to synthesise CoreSight trace packets
perf tools: Add full support for CoreSight trace decoding
pert tools: Add queue management functionality
perf tools: Add functionality to communicate with the openCSD decoder
perf tools: Add support for decoding CoreSight trace data
perf tools: Add decoder mechanic to support dumping trace data
perf tools: Add processing of coresight metadata
perf tools: Add initial entry point for decoder CoreSight traces
perf tools: Integrating the CoreSight decoding library
perf vendor events intel: Update IvyTown files to V20
perf vendor events intel: Update IvyBridge files to V20
perf vendor events intel: Update BroadwellDE events to V7
perf vendor events intel: Update SkylakeX events to V1.06
...
|
||
Rob Herring
|
b75e250a90 |
x86: remove arch specific early_init_dt_alloc_memory_arch
Now that the DT core code handles bootmem arches, we can remove the x86 specific early_init_dt_alloc_memory_arch function. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: x86@kernel.org Signed-off-by: Rob Herring <robh@kernel.org> |
||
|
Linus Torvalds
|
6304672b7f |
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/pti updates from Thomas Gleixner:
"Another set of melted spectrum related changes:
- Code simplifications and cleanups for RSB and retpolines.
- Make the indirect calls in KVM speculation safe.
- Whitelist CPUs which are known not to speculate from Meltdown and
prepare for the new CPUID flag which tells the kernel that a CPU is
not affected.
- A less rigorous variant of the module retpoline check which merily
warns when a non-retpoline protected module is loaded and reflects
that fact in the sysfs file.
- Prepare for Indirect Branch Prediction Barrier support.
- Prepare for exposure of the Speculation Control MSRs to guests, so
guest OSes which depend on those "features" can use them. Includes
a blacklist of the broken microcodes. The actual exposure of the
MSRs through KVM is still being worked on"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/speculation: Simplify indirect_branch_prediction_barrier()
x86/retpoline: Simplify vmexit_fill_RSB()
x86/cpufeatures: Clean up Spectre v2 related CPUID flags
x86/cpu/bugs: Make retpoline module warning conditional
x86/bugs: Drop one "mitigation" from dmesg
x86/nospec: Fix header guards names
x86/alternative: Print unadorned pointers
x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support
x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes
x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown
x86/msr: Add definitions for new speculation control MSRs
x86/cpufeatures: Add AMD feature bits for Speculation Control
x86/cpufeatures: Add Intel feature bits for Speculation Control
x86/cpufeatures: Add CPUID_7_EDX CPUID leaf
module/retpoline: Warn about missing retpoline in module
KVM: VMX: Make indirect call speculation safe
KVM: x86: Make indirect calls in emulator speculation safe
|
||
|
Linus Torvalds
|
942633523c |
Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm update from Thomas Gleixner: "A single patch which excludes the GART aperture from vmcore as accessing that area from a dump kernel can crash the kernel. Not necessarily the nicest way to fix this, but curing this from ground up requires a more thorough rewrite of the whole kexec/kdump magic" * 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/gart: Exclude GART aperture from vmcore |
||
|
Linus Torvalds
|
36c289e72a |
Merge branch 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 timer updates from Thomas Gleixner:
"A small set of updates for x86 specific timers:
- Mark TSC invariant on a subset of Centaur CPUs
- Allow TSC calibration without PIT on mobile platforms which lack
legacy devices"
* 'x86-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/centaur: Mark TSC invariant
x86/tsc: Introduce early tsc clocksource
x86/time: Unconditionally register legacy timer interrupt
x86/tsc: Allow TSC calibration without PIT
|
||
|
Linus Torvalds
|
669c0f762e |
Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 platform updates from Thomas Gleixner:
"The platform support for x86 contains the following updates:
- A set of updates for the UV platform to support new CPUs and to fix
some of the UV4A BAU MRRs
- The initial platform support for the jailhouse hypervisor to allow
native Linux guests (inmates) in non-root cells.
- A fix for the PCI initialization on Intel MID platforms"
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
x86/jailhouse: Respect pci=lastbus command line settings
x86/jailhouse: Set X86_FEATURE_TSC_KNOWN_FREQ
x86/platform/intel-mid: Move PCI initialization to arch_init()
x86/platform/uv/BAU: Replace hard-coded values with MMR definitions
x86/platform/UV: Fix UV4A BAU MMRs
x86/platform/UV: Fix GAM MMR references in the UV x2apic code
x86/platform/UV: Fix GAM MMR changes in UV4A
x86/platform/UV: Add references to access fixed UV4A HUB MMRs
x86/platform/UV: Fix UV4A support on new Intel Processors
x86/platform/UV: Update uv_mmrs.h to prepare for UV4A fixes
x86/jailhouse: Add PCI dependency
x86/jailhouse: Hide x2apic code when CONFIG_X86_X2APIC=n
x86/jailhouse: Initialize PCI support
x86/jailhouse: Wire up IOAPIC for legacy UART ports
x86/jailhouse: Halt instead of failing to restart
x86/jailhouse: Silence ACPI warning
x86/jailhouse: Avoid access of unsupported platform resources
x86/jailhouse: Set up timekeeping
x86/jailhouse: Enable PMTIMER
x86/jailhouse: Enable APIC and SMP support
...
|
||
|
Linus Torvalds
|
f0b13428c9 |
Merge branch 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86/cache updates from Thomas Gleixner: "A set of patches which add support for L2 cache partitioning to the Intel RDT facility" * 'x86-cache-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/intel_rdt: Add command line parameter to control L2_CDP x86/intel_rdt: Enable L2 CDP in MSR IA32_L2_QOS_CFG x86/intel_rdt: Add two new resources for L2 Code and Data Prioritization (CDP) x86/intel_rdt: Enumerate L2 Code and Data Prioritization (CDP) feature x86/intel_rdt: Add L2CDP support in documentation x86/intel_rdt: Update documentation |
||
|
Linus Torvalds
|
1a9a126b50 |
ACPI updates for v4.16-rc1
- Update the ACPICA kernel code to upstream revision 20171215 including:
* Support for ACPI 6.0A changes in the NFIT table (Bob Moore).
* Local 64-bit divide in string conversions (Bob Moore).
* Fix for a regression in acpi_evaluate_object_type() (Bob Moore).
* Fixes for memory leaks during package object resolution (Bob Moore).
* Deployment of safe version of strncpy() (Bob Moore).
* Debug and messaging updates (Bob Moore).
* Support for PDTT, SDEV, TPM2 tables in iASL and tools (Bob Moore).
* Null pointer dereference avoidance in Op and cleanups (Colin Ian King).
* Fix for memory leak from building prefixed pathname (Erik Schmauss).
* Coding style fixes, disassembler and compiler updates (Hanjun Guo,
Erik Schmauss).
* Additional PPTT flags from ACPI 6.2 (Jeremy Linton).
* Fix for an off-by-one error in acpi_get_timer_duration() (Jung-uk Kim).
* Infinite loop detection timeout and utilities cleanups (Lv Zheng).
* Windows 10 version 1607 and 1703 OSI strings (Mario Limonciello).
- Update ACPICA information in MAINTAINERS to reflect the current
status of ACPICA maintenance and rename a local variable in one
function to match the corresponding upstream code (Rafael Wysocki).
- Clean up ACPI-related initialization on x86 (Andy Shevchenko).
- Add support for Intel Merrifield to the ACPI GPIO code (Andy
Shevchenko).
- Clean up ACPI PMIC drivers (Andy Shevchenko, Arvind Yadav).
- Fix the ACPI Generic Event Device (GED) driver to free IRQs on
shutdown and clean up the PCI IRQ Link driver (Sinan Kaya).
- Make the GHES code call into the AER driver on all errors and
clean up the ACPI APEI code (Colin Ian King, Tyler Baicar).
- Make the IA64 ACPI NUMA code parse all SRAT entries (Ganapatrao
Kulkarni).
- Add a lid switch blacklist to the ACPI button driver and make it
print extra debug messages on lid events (Hans de Goede).
- Add quirks for Asus GL502VSK and UX305LA to the ACPI battery
driver and clean it up somewhat (Bjørn Mork, Kai-Heng Feng).
- Add device link for CHT SD card dependency on I2C to the ACPI
LPSS (Intel SoCs) driver and make it avoid creating platform
device objects for devices without MMIO resources (Adrian Hunter,
Hans de Goede).
- Fix the ACPI GPE mask kernel command line parameter handling
(Prarit Bhargava).
- Fix the handling of (incorrectly exposed) backlight interfaces
without LCD (Hans de Goede).
- Fix the usage of debugfs_create_*() in the ACPI EC driver (Geert
Uytterhoeven).
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Merge tag 'acpi-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"The majority of this is an update of the ACPICA kernel code to
upstream revision 20171215 with a cosmetic change and a maintainers
information update on top of it.
The rest is mostly some minor fixes and cleanups in the ACPI drivers
and cleanups to initialization on x86.
Specifics:
- Update the ACPICA kernel code to upstream revision 20171215 including:
* Support for ACPI 6.0A changes in the NFIT table (Bob Moore)
* Local 64-bit divide in string conversions (Bob Moore)
* Fix for a regression in acpi_evaluate_object_type() (Bob Moore)
* Fixes for memory leaks during package object resolution (Bob
Moore)
* Deployment of safe version of strncpy() (Bob Moore)
* Debug and messaging updates (Bob Moore)
* Support for PDTT, SDEV, TPM2 tables in iASL and tools (Bob
Moore)
* Null pointer dereference avoidance in Op and cleanups (Colin Ian
King)
* Fix for memory leak from building prefixed pathname (Erik
Schmauss)
* Coding style fixes, disassembler and compiler updates (Hanjun
Guo, Erik Schmauss)
* Additional PPTT flags from ACPI 6.2 (Jeremy Linton)
* Fix for an off-by-one error in acpi_get_timer_duration()
(Jung-uk Kim)
* Infinite loop detection timeout and utilities cleanups (Lv
Zheng)
* Windows 10 version 1607 and 1703 OSI strings (Mario
Limonciello)
- Update ACPICA information in MAINTAINERS to reflect the current
status of ACPICA maintenance and rename a local variable in one
function to match the corresponding upstream code (Rafael Wysocki)
- Clean up ACPI-related initialization on x86 (Andy Shevchenko)
- Add support for Intel Merrifield to the ACPI GPIO code (Andy
Shevchenko)
- Clean up ACPI PMIC drivers (Andy Shevchenko, Arvind Yadav)
- Fix the ACPI Generic Event Device (GED) driver to free IRQs on
shutdown and clean up the PCI IRQ Link driver (Sinan Kaya)
- Make the GHES code call into the AER driver on all errors and clean
up the ACPI APEI code (Colin Ian King, Tyler Baicar)
- Make the IA64 ACPI NUMA code parse all SRAT entries (Ganapatrao
Kulkarni)
- Add a lid switch blacklist to the ACPI button driver and make it
print extra debug messages on lid events (Hans de Goede)
- Add quirks for Asus GL502VSK and UX305LA to the ACPI battery driver
and clean it up somewhat (Bjørn Mork, Kai-Heng Feng)
- Add device link for CHT SD card dependency on I2C to the ACPI LPSS
(Intel SoCs) driver and make it avoid creating platform device
objects for devices without MMIO resources (Adrian Hunter, Hans de
Goede)
- Fix the ACPI GPE mask kernel command line parameter handling
(Prarit Bhargava)
- Fix the handling of (incorrectly exposed) backlight interfaces
without LCD (Hans de Goede)
- Fix the usage of debugfs_create_*() in the ACPI EC driver (Geert
Uytterhoeven)"
* tag 'acpi-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (62 commits)
ACPI/PCI: pci_link: reduce verbosity when IRQ is enabled
ACPI / LPSS: Do not instiate platform_dev for devs without MMIO resources
ACPI / PMIC: Convert to use builtin_platform_driver() macro
ACPI / x86: boot: Propagate error code in acpi_gsi_to_irq()
ACPICA: Update version to 20171215
ACPICA: trivial style fix, no functional change
ACPICA: Fix a couple memory leaks during package object resolution
ACPICA: Recognize the Windows 10 version 1607 and 1703 OSI strings
ACPICA: DT compiler: prevent error if optional field at the end of table is not present
ACPICA: Rename a global variable, no functional change
ACPICA: Create and deploy safe version of strncpy
ACPICA: Cleanup the global variables and update comments
ACPICA: Debugger: fix slight indentation issue
ACPICA: Fix a regression in the acpi_evaluate_object_type() interface
ACPICA: Update for a few debug output statements
ACPICA: Debug output, no functional change
ACPI: EC: Fix debugfs_create_*() usage
ACPI / video: Default lcd_only to true on Win8-ready and newer machines
ACPI / x86: boot: Don't setup SCI on HW-reduced platforms
ACPI / x86: boot: Use INVALID_ACPI_IRQ instead of 0 for acpi_sci_override_gsi
...
|
||
|
Linus Torvalds
|
7f3fdd40a7 |
Power management updates for v4.16-rc1
- Define a PM driver flag allowing drivers to request that their
devices be left in suspend after system-wide transitions to the
working state if possible and add support for it to the PCI bus
type and the ACPI PM domain (Rafael Wysocki).
- Make the PM core carry out optimizations for devices with driver
PM flags set in some cases and make a few drivers set those flags
(Rafael Wysocki).
- Fix and clean up wrapper routines allowing runtime PM device
callbacks to be re-used for system-wide PM, change the generic
power domains (genpd) framework to stop using those routines
incorrectly and fix up a driver depending on that behavior of
genpd (Rafael Wysocki, Ulf Hansson, Geert Uytterhoeven).
- Fix and clean up the PM core's device wakeup framework and
re-factor system-wide PM core code related to device wakeup
(Rafael Wysocki, Ulf Hansson, Brian Norris).
- Make more x86-based systems use the Low Power Sleep S0 _DSM
interface by default (to fix power button wakeup from
suspend-to-idle on Surface Pro3) and add a kernel command line
switch to tell it to ignore the system sleep blacklist in the
ACPI core (Rafael Wysocki).
- Fix a race condition related to cpufreq governor module removal
and clean up the governor management code in the cpufreq core
(Rafael Wysocki).
- Drop the unused generic code related to the handling of the static
power energy usage model in the CPU cooling thermal driver along
with the corresponding documentation (Viresh Kumar).
- Add mt2712 support to the Mediatek cpufreq driver (Andrew-sh Cheng).
- Add a new operating point to the imx6ul and imx6q cpufreq drivers
and switch the latter to using clk_bulk_get() (Anson Huang, Dong
Aisheng).
- Add support for multiple regulators to the TI cpufreq driver along
with a new DT binding related to that and clean up that driver
somewhat (Dave Gerlach).
- Fix a powernv cpufreq driver regression leading to incorrect CPU
frequency reporting, fix that driver to deal with non-continguous
P-states correctly and clean it up (Gautham Shenoy, Shilpasri Bhat).
- Add support for frequency scaling on Armada 37xx SoCs through the
generic DT cpufreq driver (Gregory CLEMENT).
- Fix error code paths in the mvebu cpufreq driver (Gregory CLEMENT).
- Fix a transition delay setting regression in the longhaul cpufreq
driver (Viresh Kumar).
- Add Skylake X (server) support to the intel_pstate cpufreq driver
and clean up that driver somewhat (Srinivas Pandruvada).
- Clean up the cpufreq statistics collection code (Viresh Kumar).
- Drop cluster terminology and dependency on physical_package_id
from the PSCI driver and drop dependency on arm_big_little from
the SCPI cpufreq driver (Sudeep Holla).
- Add support for system-wide suspend and resume to the RAPL power
capping driver and drop a redundant semicolon from it (Zhen Han,
Luis de Bethencourt).
- Make SPI domain validation (in the SCSI SPI transport driver) and
system-wide suspend mutually exclusive as they rely on the same
underlying mechanism and cannot be carried out at the same time
(Bart Van Assche).
- Fix the computation of the amount of memory to preallocate in the
hibernation core and clean up one function in there (Rainer Fiebig,
Kyungsik Lee).
- Prepare the Operating Performance Points (OPP) framework for being
used with power domains and clean up one function in it (Viresh
Kumar, Wei Yongjun).
- Clean up the generic sysfs interface for device PM (Andy Shevchenko).
- Fix several minor issues in power management frameworks and clean
them up a bit (Arvind Yadav, Bjorn Andersson, Geert Uytterhoeven,
Gustavo Silva, Julia Lawall, Luis de Bethencourt, Paul Gortmaker,
Sergey Senozhatsky, gaurav jindal).
- Make it easier to disable PM via Kconfig (Mark Brown).
- Clean up the cpupower and intel_pstate_tracer utilities (Doug
Smythies, Laura Abbott).
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Merge tag 'pm-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"This includes some infrastructure changes in the PM core, mostly
related to integration between runtime PM and system-wide suspend and
hibernation, plus some driver changes depending on them and fixes for
issues in that area which have become quite apparent recently.
Also included are changes making more x86-based systems use the Low
Power Sleep S0 _DSM interface by default, which turned out to be
necessary to handle power button wakeups from suspend-to-idle on
Surface Pro3.
On the cpufreq front we have fixes and cleanups in the core, some new
hardware support, driver updates and the removal of some unused code
from the CPU cooling thermal driver.
Apart from this, the Operating Performance Points (OPP) framework is
prepared to be used with power domains in the future and there is a
usual bunch of assorted fixes and cleanups.
Specifics:
- Define a PM driver flag allowing drivers to request that their
devices be left in suspend after system-wide transitions to the
working state if possible and add support for it to the PCI bus
type and the ACPI PM domain (Rafael Wysocki).
- Make the PM core carry out optimizations for devices with driver PM
flags set in some cases and make a few drivers set those flags
(Rafael Wysocki).
- Fix and clean up wrapper routines allowing runtime PM device
callbacks to be re-used for system-wide PM, change the generic
power domains (genpd) framework to stop using those routines
incorrectly and fix up a driver depending on that behavior of genpd
(Rafael Wysocki, Ulf Hansson, Geert Uytterhoeven).
- Fix and clean up the PM core's device wakeup framework and
re-factor system-wide PM core code related to device wakeup
(Rafael Wysocki, Ulf Hansson, Brian Norris).
- Make more x86-based systems use the Low Power Sleep S0 _DSM
interface by default (to fix power button wakeup from
suspend-to-idle on Surface Pro3) and add a kernel command line
switch to tell it to ignore the system sleep blacklist in the ACPI
core (Rafael Wysocki).
- Fix a race condition related to cpufreq governor module removal and
clean up the governor management code in the cpufreq core (Rafael
Wysocki).
- Drop the unused generic code related to the handling of the static
power energy usage model in the CPU cooling thermal driver along
with the corresponding documentation (Viresh Kumar).
- Add mt2712 support to the Mediatek cpufreq driver (Andrew-sh
Cheng).
- Add a new operating point to the imx6ul and imx6q cpufreq drivers
and switch the latter to using clk_bulk_get() (Anson Huang, Dong
Aisheng).
- Add support for multiple regulators to the TI cpufreq driver along
with a new DT binding related to that and clean up that driver
somewhat (Dave Gerlach).
- Fix a powernv cpufreq driver regression leading to incorrect CPU
frequency reporting, fix that driver to deal with non-continguous
P-states correctly and clean it up (Gautham Shenoy, Shilpasri
Bhat).
- Add support for frequency scaling on Armada 37xx SoCs through the
generic DT cpufreq driver (Gregory CLEMENT).
- Fix error code paths in the mvebu cpufreq driver (Gregory CLEMENT).
- Fix a transition delay setting regression in the longhaul cpufreq
driver (Viresh Kumar).
- Add Skylake X (server) support to the intel_pstate cpufreq driver
and clean up that driver somewhat (Srinivas Pandruvada).
- Clean up the cpufreq statistics collection code (Viresh Kumar).
- Drop cluster terminology and dependency on physical_package_id from
the PSCI driver and drop dependency on arm_big_little from the SCPI
cpufreq driver (Sudeep Holla).
- Add support for system-wide suspend and resume to the RAPL power
capping driver and drop a redundant semicolon from it (Zhen Han,
Luis de Bethencourt).
- Make SPI domain validation (in the SCSI SPI transport driver) and
system-wide suspend mutually exclusive as they rely on the same
underlying mechanism and cannot be carried out at the same time
(Bart Van Assche).
- Fix the computation of the amount of memory to preallocate in the
hibernation core and clean up one function in there (Rainer Fiebig,
Kyungsik Lee).
- Prepare the Operating Performance Points (OPP) framework for being
used with power domains and clean up one function in it (Viresh
Kumar, Wei Yongjun).
- Clean up the generic sysfs interface for device PM (Andy
Shevchenko).
- Fix several minor issues in power management frameworks and clean
them up a bit (Arvind Yadav, Bjorn Andersson, Geert Uytterhoeven,
Gustavo Silva, Julia Lawall, Luis de Bethencourt, Paul Gortmaker,
Sergey Senozhatsky, gaurav jindal).
- Make it easier to disable PM via Kconfig (Mark Brown).
- Clean up the cpupower and intel_pstate_tracer utilities (Doug
Smythies, Laura Abbott)"
* tag 'pm-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (89 commits)
PCI / PM: Remove spurious semicolon
cpufreq: scpi: remove arm_big_little dependency
drivers: psci: remove cluster terminology and dependency on physical_package_id
powercap: intel_rapl: Fix trailing semicolon
dmaengine: rcar-dmac: Make DMAC reinit during system resume explicit
PM / runtime: Allow no callbacks in pm_runtime_force_suspend|resume()
PM / hibernate: Drop unused parameter of enough_swap
PM / runtime: Check ignore_children in pm_runtime_need_not_resume()
PM / runtime: Rework pm_runtime_force_suspend/resume()
PM / genpd: Stop/start devices without pm_runtime_force_suspend/resume()
cpufreq: powernv: Dont assume distinct pstate values for nominal and pmin
cpufreq: intel_pstate: Add Skylake servers support
cpufreq: intel_pstate: Replace bxt_funcs with core_funcs
platform/x86: surfacepro3: Support for wakeup from suspend-to-idle
ACPI / PM: Use Low Power S0 Idle on more systems
PM / wakeup: Print warn if device gets enabled as wakeup source during sleep
PM / domains: Don't skip driver's ->suspend|resume_noirq() callbacks
PM / core: Propagate wakeup_path status flag in __device_suspend_late()
PM / core: Re-structure code for clearing the direct_complete flag
powercap: add suspend and resume mechanism for SOC power limit
...
|
||
|
Linus Torvalds
|
49f9c3552c |
init_task out-of-lining
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Merge tag 'init_task-20180117' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
Pull init_task initializer cleanups from David Howells:
"It doesn't seem useful to have the init_task in a header file rather
than in a normal source file. We could consolidate init_task handling
instead and expand out various macros.
Here's a series of patches that consolidate init_task handling:
(1) Make THREAD_SIZE available to vmlinux.lds for cris, hexagon and
openrisc.
(2) Alter the INIT_TASK_DATA linker script macro to set
init_thread_union and init_stack rather than defining these in C.
Insert init_task and init_thread_into into the init_stack area in
the linker script as appropriate to the configuration, with
different section markers so that they end up correctly ordered.
We can then get merge ia64's init_task.c into the main one.
We then have a bunch of single-use INIT_*() macros that seem only
to be macros because they used to be used per-arch. We can then
expand these in place of the user and get rid of a few lines and
a lot of backslashes.
(3) Expand INIT_TASK() in place.
(4) Expand in place various small INIT_*() macros that are defined
conditionally. Expand them and surround them by #if[n]def/#endif
in the .c file as it takes fewer lines.
(5) Expand INIT_SIGNALS() and INIT_SIGHAND() in place.
(6) Expand INIT_STRUCT_PID in place.
These macros can then be discarded"
* tag 'init_task-20180117' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
Expand INIT_STRUCT_PID and remove
Expand the INIT_SIGNALS and INIT_SIGHAND macros and remove
Expand various INIT_* macros and remove
Expand INIT_TASK() in init/init_task.c and remove
Construct init thread stack in the linker script rather than by union
openrisc: Make THREAD_SIZE available to vmlinux.lds
hexagon: Make THREAD_SIZE available to vmlinux.lds
cris: Make THREAD_SIZE available to vmlinux.lds
|
||
David S. Miller
|
457740a903 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Alexei Starovoitov says:
====================
pull-request: bpf-next 2018-01-26
The following pull-request contains BPF updates for your *net-next* tree.
The main changes are:
1) A number of extensions to tcp-bpf, from Lawrence.
- direct R or R/W access to many tcp_sock fields via bpf_sock_ops
- passing up to 3 arguments to bpf_sock_ops functions
- tcp_sock field bpf_sock_ops_cb_flags for controlling callbacks
- optionally calling bpf_sock_ops program when RTO fires
- optionally calling bpf_sock_ops program when packet is retransmitted
- optionally calling bpf_sock_ops program when TCP state changes
- access to tclass and sk_txhash
- new selftest
2) div/mod exception handling, from Daniel.
One of the ugly leftovers from the early eBPF days is that div/mod
operations based on registers have a hard-coded src_reg == 0 test
in the interpreter as well as in JIT code generators that would
return from the BPF program with exit code 0. This was basically
adopted from cBPF interpreter for historical reasons.
There are multiple reasons why this is very suboptimal and prone
to bugs. To name one: the return code mapping for such abnormal
program exit of 0 does not always match with a suitable program
type's exit code mapping. For example, '0' in tc means action 'ok'
where the packet gets passed further up the stack, which is just
undesirable for such cases (e.g. when implementing policy) and
also does not match with other program types.
After considering _four_ different ways to address the problem,
we adapt the same behavior as on some major archs like ARMv8:
X div 0 results in 0, and X mod 0 results in X. aarch64 and
aarch32 ISA do not generate any traps or otherwise aborts
of program execution for unsigned divides.
Given the options, it seems the most suitable from
all of them, also since major archs have similar schemes in
place. Given this is all in the realm of undefined behavior,
we still have the option to adapt if deemed necessary.
3) sockmap sample refactoring, from John.
4) lpm map get_next_key fixes, from Yonghong.
5) test cleanups, from Alexei and Prashant.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
|
||
|
Linus Torvalds
|
24b1cccf92 |
Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 retpoline fixlet from Thomas Gleixner: "Remove the ESP/RSP thunks for retpoline as they cannot ever work. Get rid of them before they show up in a release" * 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/retpoline: Remove the esp/rsp thunk |
||
|
Linus Torvalds
|
32c6cdf75c |
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A set of small fixes for 4.15:
- Fix vmapped stack synchronization on systems with 4-level paging
and a large amount of memory caused by a missing 5-level folding
which made the pgd synchronization logic to fail and causing double
faults.
- Add a missing sanity check in the vmalloc_fault() logic on 5-level
paging systems.
- Bring back protection against accessing a freed initrd in the
microcode loader which was lost by a wrong merge conflict
resolution.
- Extend the Broadwell micro code loading sanity check.
- Add a missing ENDPROC annotation in ftrace assembly code which
makes ORC unhappy.
- Prevent loading the AMD power module on !AMD platforms. The load
itself is uncritical, but an unload attempt results in a kernel
crash.
- Update Peter Anvins role in the MAINTAINERS file"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ftrace: Add one more ENDPROC annotation
x86: Mark hpa as a "Designated Reviewer" for the time being
x86/mm/64: Tighten up vmalloc_fault() sanity checks on 5-level kernels
x86/mm/64: Fix vmapped stack syncing on very-large-memory 4-level systems
x86/microcode: Fix again accessing initrd after having been freed
x86/microcode/intel: Extend BDW late-loading further with LLC size check
perf/x86/amd/power: Do not load AMD power module on !AMD platforms
|
||
|
Linus Torvalds
|
39e383626c |
Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner: "Four patches which all address lock inversions and deadlocks in the perf core code and the Intel debug store" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86: Fix perf,x86,cpuhp deadlock perf/core: Fix ctx::mutex deadlock perf/core: Fix another perf,trace,cpuhp lock inversion perf/core: Fix lock inversion between perf,trace,cpuhp |
||
Josh Poimboeuf
|
dd085168a7 |
x86/ftrace: Add one more ENDPROC annotation
When ORC support was added for the ftrace_64.S code, an ENDPROC
for function_hook() was missed. This results in the following warning:
arch/x86/kernel/ftrace_64.o: warning: objtool: .entry.text+0x0: unreachable instruction
Fixes:
|
||
Borislav Petkov
|
64e16720ea |
x86/speculation: Simplify indirect_branch_prediction_barrier()
Make it all a function which does the WRMSR instead of having a hairy inline asm. [dwmw2: export it, fix CONFIG_RETPOLINE issues] Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: ak@linux.intel.com Cc: dave.hansen@intel.com Cc: karahmed@amazon.de Cc: arjan@linux.intel.com Cc: torvalds@linux-foundation.org Cc: peterz@infradead.org Cc: bp@alien8.de Cc: pbonzini@redhat.com Cc: tim.c.chen@linux.intel.com Cc: gregkh@linux-foundation.org Link: https://lkml.kernel.org/r/1517070274-12128-4-git-send-email-dwmw@amazon.co.uk |
||
Borislav Petkov
|
1dde7415e9 |
x86/retpoline: Simplify vmexit_fill_RSB()
Simplify it to call an asm-function instead of pasting 41 insn bytes at every call site. Also, add alignment to the macro as suggested here: https://support.google.com/faqs/answer/7625886 [dwmw2: Clean up comments, let it clobber %ebx and just tell the compiler] Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: ak@linux.intel.com Cc: dave.hansen@intel.com Cc: karahmed@amazon.de Cc: arjan@linux.intel.com Cc: torvalds@linux-foundation.org Cc: peterz@infradead.org Cc: bp@alien8.de Cc: pbonzini@redhat.com Cc: tim.c.chen@linux.intel.com Cc: gregkh@linux-foundation.org Link: https://lkml.kernel.org/r/1517070274-12128-3-git-send-email-dwmw@amazon.co.uk |
||
David Woodhouse
|
2961298efe |
x86/cpufeatures: Clean up Spectre v2 related CPUID flags
We want to expose the hardware features simply in /proc/cpuinfo as "ibrs", "ibpb" and "stibp". Since AMD has separate CPUID bits for those, use them as the user-visible bits. When the Intel SPEC_CTRL bit is set which indicates both IBRS and IBPB capability, set those (AMD) bits accordingly. Likewise if the Intel STIBP bit is set, set the AMD STIBP that's used for the generic hardware capability. Hide the rest from /proc/cpuinfo by putting "" in the comments. Including RETPOLINE and RETPOLINE_AMD which shouldn't be visible there. There are patches to make the sysfs vulnerabilities information non-readable by non-root, and the same should apply to all information about which mitigations are actually in use. Those *shouldn't* appear in /proc/cpuinfo. The feature bit for whether IBPB is actually used, which is needed for ALTERNATIVEs, is renamed to X86_FEATURE_USE_IBPB. Originally-by: Borislav Petkov <bp@suse.de> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: ak@linux.intel.com Cc: dave.hansen@intel.com Cc: karahmed@amazon.de Cc: arjan@linux.intel.com Cc: torvalds@linux-foundation.org Cc: peterz@infradead.org Cc: bp@alien8.de Cc: pbonzini@redhat.com Cc: tim.c.chen@linux.intel.com Cc: gregkh@linux-foundation.org Link: https://lkml.kernel.org/r/1517070274-12128-2-git-send-email-dwmw@amazon.co.uk |
||
Thomas Gleixner
|
e383095c7f |
x86/cpu/bugs: Make retpoline module warning conditional
If sysfs is disabled and RETPOLINE not defined:
arch/x86/kernel/cpu/bugs.c:97:13: warning: ‘spectre_v2_bad_module’ defined but not used
[-Wunused-variable]
static bool spectre_v2_bad_module;
Hide it.
Fixes:
|
||
Daniel Borkmann
|
3e5b1a39d7 |
bpf, x86_64: remove obsolete exception handling from div/mod
Since we've changed div/mod exception handling for src_reg in eBPF verifier itself, remove the leftovers from x86_64 JIT. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> |
||
Andy Lutomirski
|
36b3a77268 |
x86/mm/64: Tighten up vmalloc_fault() sanity checks on 5-level kernels
On a 5-level kernel, if a non-init mm has a top-level entry, it needs to
match init_mm's, but the vmalloc_fault() code skipped over the BUG_ON()
that would have checked it.
While we're at it, get rid of the rather confusing 4-level folded "pgd"
logic.
Cleans-up:
|
||
|
Andy Lutomirski
|
5beda7d54e |
x86/mm/64: Fix vmapped stack syncing on very-large-memory 4-level systems
Neil Berrington reported a double-fault on a VM with 768GB of RAM that uses
large amounts of vmalloc space with PTI enabled.
The cause is that load_new_mm_cr3() was never fixed to take the 5-level pgd
folding code into account, so, on a 4-level kernel, the pgd synchronization
logic compiles away to exactly nothing.
Interestingly, the problem doesn't trigger with nopti. I assume this is
because the kernel is mapped with global pages if we boot with nopti. The
sequence of operations when we create a new task is that we first load its
mm while still running on the old stack (which crashes if the old stack is
unmapped in the new mm unless the TLB saves us), then we call
prepare_switch_to(), and then we switch to the new stack.
prepare_switch_to() pokes the new stack directly, which will populate the
mapping through vmalloc_fault(). I assume that we're getting lucky on
non-PTI systems -- the old stack's TLB entry stays alive long enough to
make it all the way through prepare_switch_to() and switch_to() so that we
make it to a valid stack.
Fixes:
|
||
|
Borislav Petkov
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55fa19d3e5 |
x86/bugs: Drop one "mitigation" from dmesg
Make [ 0.031118] Spectre V2 mitigation: Mitigation: Full generic retpoline into [ 0.031118] Spectre V2: Mitigation: Full generic retpoline to reduce the mitigation mitigations strings. Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: riel@redhat.com Cc: ak@linux.intel.com Cc: peterz@infradead.org Cc: David Woodhouse <dwmw2@infradead.org> Cc: jikos@kernel.org Cc: luto@amacapital.net Cc: dave.hansen@intel.com Cc: torvalds@linux-foundation.org Cc: keescook@google.com Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: tim.c.chen@linux.intel.com Cc: pjt@google.com Link: https://lkml.kernel.org/r/20180126121139.31959-5-bp@alien8.de |
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Borislav Petkov
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7a32fc51ca |
x86/nospec: Fix header guards names
... to adhere to the _ASM_X86_ naming scheme. No functional change. Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: riel@redhat.com Cc: ak@linux.intel.com Cc: peterz@infradead.org Cc: David Woodhouse <dwmw2@infradead.org> Cc: jikos@kernel.org Cc: luto@amacapital.net Cc: dave.hansen@intel.com Cc: torvalds@linux-foundation.org Cc: keescook@google.com Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: tim.c.chen@linux.intel.com Cc: gregkh@linux-foundation.org Cc: pjt@google.com Link: https://lkml.kernel.org/r/20180126121139.31959-3-bp@alien8.de |
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Borislav Petkov
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0e6c16c652 |
x86/alternative: Print unadorned pointers
After commit
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David Woodhouse
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20ffa1caec |
x86/speculation: Add basic IBPB (Indirect Branch Prediction Barrier) support
Expose indirect_branch_prediction_barrier() for use in subsequent patches. [ tglx: Add IBPB status to spectre_v2 sysfs file ] Co-developed-by: KarimAllah Ahmed <karahmed@amazon.de> Signed-off-by: KarimAllah Ahmed <karahmed@amazon.de> Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Cc: gnomes@lxorguk.ukuu.org.uk Cc: ak@linux.intel.com Cc: ashok.raj@intel.com Cc: dave.hansen@intel.com Cc: arjan@linux.intel.com Cc: torvalds@linux-foundation.org Cc: peterz@infradead.org Cc: bp@alien8.de Cc: pbonzini@redhat.com Cc: tim.c.chen@linux.intel.com Cc: gregkh@linux-foundation.org Link: https://lkml.kernel.org/r/1516896855-7642-8-git-send-email-dwmw@amazon.co.uk |
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David Woodhouse
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a5b2966364 |
x86/cpufeature: Blacklist SPEC_CTRL/PRED_CMD on early Spectre v2 microcodes
This doesn't refuse to load the affected microcodes; it just refuses to
use the Spectre v2 mitigation features if they're detected, by clearing
the appropriate feature bits.
The AMD CPUID bits are handled here too, because hypervisors *may* have
been exposing those bits even on Intel chips, for fine-grained control
of what's available.
It is non-trivial to use x86_match_cpu() for this table because that
doesn't handle steppings. And the approach taken in commit
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David Woodhouse
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fec9434a12 |
x86/pti: Do not enable PTI on CPUs which are not vulnerable to Meltdown
Also, for CPUs which don't speculate at all, don't report that they're vulnerable to the Spectre variants either. Leave the cpu_no_meltdown[] match table with just X86_VENDOR_AMD in it for now, even though that could be done with a simple comparison, on the assumption that we'll have more to add. Based on suggestions from Dave Hansen and Alan Cox. Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Borislav Petkov <bp@suse.de> Acked-by: Dave Hansen <dave.hansen@intel.com> Cc: gnomes@lxorguk.ukuu.org.uk Cc: ak@linux.intel.com Cc: ashok.raj@intel.com Cc: karahmed@amazon.de Cc: arjan@linux.intel.com Cc: torvalds@linux-foundation.org Cc: peterz@infradead.org Cc: bp@alien8.de Cc: pbonzini@redhat.com Cc: tim.c.chen@linux.intel.com Cc: gregkh@linux-foundation.org Link: https://lkml.kernel.org/r/1516896855-7642-6-git-send-email-dwmw@amazon.co.uk |
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David Woodhouse
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1e340c60d0 |
x86/msr: Add definitions for new speculation control MSRs
Add MSR and bit definitions for SPEC_CTRL, PRED_CMD and ARCH_CAPABILITIES. See Intel's 336996-Speculative-Execution-Side-Channel-Mitigations.pdf Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: gnomes@lxorguk.ukuu.org.uk Cc: ak@linux.intel.com Cc: ashok.raj@intel.com Cc: dave.hansen@intel.com Cc: karahmed@amazon.de Cc: arjan@linux.intel.com Cc: torvalds@linux-foundation.org Cc: peterz@infradead.org Cc: bp@alien8.de Cc: pbonzini@redhat.com Cc: tim.c.chen@linux.intel.com Cc: gregkh@linux-foundation.org Link: https://lkml.kernel.org/r/1516896855-7642-5-git-send-email-dwmw@amazon.co.uk |