Commit Graph

139180 Commits

Author SHA1 Message Date
James Hogan a1286968c4 MIPS: generic: Fix NI 169445 its build
Since commit 04a85e087a ("MIPS: generic: Move NI 169445 FIT image
source to its own file"), a generic 32r2el_defconfig kernel fails to
build with the following build error:

  ITB     arch/mips/boot/vmlinux.gz.itb
Error: arch/mips/boot/vmlinux.gz.its:111.1-2 syntax error
FATAL ERROR: Unable to parse input tree
mkimage Can't read arch/mips/boot/vmlinux.gz.itb.tmp: Invalid argument

Fix arch/mips/generic/board-ni169445.its.S to include the necessary "/"
node path before the first open brace.

The original issue in arch/mips/generic/vmlinux.its.S was fixed directly
in the original commit 7aacf86b75 ("MIPS: NI 169445 board support")
after https://patchwork.linux-mips.org/patch/16941/ was submitted, but
the separate its.S file wasn't correctly fixed when resolving the
conflict in commit 04a85e087a ("MIPS: generic: Move NI 169445 FIT
image source to its own file").

Fixes: 04a85e087a ("MIPS: generic: Move NI 169445 FIT image source to its own file")
Signed-off-by: James Hogan <jhogan@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: Nathan Sullivan <nathan.sullivan@ni.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/17561/
Signed-off-by: James Hogan <jhogan@kernel.org>
2017-10-31 22:55:44 +00:00
Paul Burton 48c834be17 Update MIPS email addresses
MIPS will soon not be a part of Imagination Technologies, and as such
many @imgtec.com email addresses will no longer be valid. This patch
updates the addresses for those who:

 - Have 10 or more patches in mainline authored using an @imgtec.com
   email address, or any patches dated within the past year.

 - Are still with Imagination but leaving as part of the MIPS business
   unit, as determined from an internal email address list.

 - Haven't already updated their email address (ie. JamesH) or expressed
   a desire to be excluded (ie. Maciej).

 - Acked v2 or earlier of this patch, which leaves Deng-Cheng, Matt &
   myself.

New addresses are of the form firstname.lastname@mips.com, and all
verified against an internal email address list. An entry is added to
.mailmap for each person such that get_maintainer.pl will report the new
addresses rather than @imgtec.com addresses which will soon be dead.

Instances of the affected addresses throughout the tree are then
mechanically replaced with the new @mips.com address.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Cc: Deng-Cheng Zhu <dengcheng.zhu@mips.com>
Acked-by: Dengcheng Zhu <dengcheng.zhu@mips.com>
Cc: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Matt Redfearn <matt.redfearn@mips.com>
Acked-by: Matt Redfearn <matt.redfearn@mips.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: trivial@kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/17540/
Signed-off-by: James Hogan <jhogan@kernel.org>
2017-10-31 22:42:39 +00:00
Linus Torvalds 22450e03ac pci-v4.14-fixes-6
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZ83R4AAoJEFmIoMA60/r8RGIQAL/b2IX5UgeI31Ub+4IDqJa9
 C6CR1FqdBj9dMDGQElJGeQ9omPMrMB8f/MGWrVl2pLwp5leYMg9NtjeybmkOqQwn
 CfmyD9qkuEpsX7aFAXz0gy6yaE1+2YZ6ZWJirCR1IN/nkc1iaSIzVgBjBvrn3TiN
 WIWZVzsQEyGUEcFe+P/faSNaAplT92TOC09mhD4OrbjchDGTxzvXvnOYO+bf2+K0
 89If683jMLv9hJbnWXJRl3/zL2Zs/v8EV96F55hT5Yz1Tbb1qHOs+TxNYwKbxgTL
 U7L/rOHx9SRd+Rmw2vKAL0ka7wKKKVsuBxA27ipaRlCGrn+vwrNP86EIlk3qUbiT
 JOu07b69kkeZNzVgf+XHZfZle7+aobq1YgCkvp54yZwTNTdIvTIYw6ahqRwHP3vx
 AyhMK1ALsRZpbkmrfqQxRHjlWYRGdmVj6RDTThg/xsJ1+jFl78eA0foSy8Eubke2
 Y+UKyOCXaLb2UNFkcJhDCzAf4jvqTEULbLRCr7r0cJqfPL92/3g6Bqob6AJZLbpt
 mdlNTyMcg8Z/qJuA2uK1P87EYjpNzTBOMwORyph8C+EVIsgjcI1Ace0YqKxbVgfy
 YckVsuOH600L074sJVUxkV+WWQLORiayfOyUrsjVbm7eQXUFLgxw+wSz0QgM+MX5
 ZTYQH4J4eqXnKR/bahTu
 =edoi
 -----END PGP SIGNATURE-----

Merge tag 'pci-v4.14-fixes-6' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull PCI fix from Bjorn Helgaas:
 "Move alpha PCI IRQ map/swizzle functions out of initdata to fix
  regression from PCI core IRQ mapping changes (Lorenzo Pieralisi)"

* tag 'pci-v4.14-fixes-6' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  alpha/PCI: Move pci_map_irq()/pci_swizzle() out of initdata
2017-10-28 10:53:24 -07:00
Linus Torvalds 11224e1fc4 xen: fixes for 4.14-rc7
-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
 iQEcBAABAgAGBQJZ8uDpAAoJELDendYovxMvnYAH/iYlLBkNhw2yLScYxMNuMo60
 8W82/70UNdC2ZIWlIKQSDsvlU0Omy9Iu51zBrE6SEVKpISxrOvtYO5JiaZGhPAqY
 2/Jpeuawdm44uaFPFwajLRsHIhgyuAxMxj7Y+TLFGW/+X6FrmFg5G3CNt5pRf0Ah
 xraD8O5MYG6FfqxftCLMD8cKlxqslZwZUFuf5CjxSKbw4HTWcTEA7a86toONUI9L
 hJjmAD6VRW/PgEVrLklQBRRwiSsV1nyBLrY5Q+sSEy9BGGvblO/yEEg8uO6sYmJ0
 a9bycTASUbisV1LvCp7HcHFn6h60CZV2XwNgwRaToEF8ebycAw5hq6l7t8pFTNI=
 =EvbJ
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-4.14c-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - a fix for the Xen gntdev device repairing an issue in case of partial
   failure of mapping multiple pages of another domain

 - a fix of a regression in the Xen balloon driver introduced in 4.13

 - a build fix for Xen on ARM which will trigger e.g. for Linux RT

 - a maintainers update for pvops (not really Xen, but carrying through
   this tree just for convenience)

* tag 'for-linus-4.14c-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  maintainers: drop Chris Wright from pvops
  arm/xen: don't inclide rwlock.h directly.
  xen: fix booting ballooned down hvm guest
  xen/gntdev: avoid out of bounds access in case of partial gntdev_mmap()
2017-10-27 20:41:05 -07:00
Linus Torvalds 90e6872061 ARC fixes for 4.14-rc7
- Fixes for HSDK platform
  - module build error for !LLSC config
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZ85wFAAoJEGnX8d3iisJek7AP/15Lne5KOxOKbI086KQ+KUYr
 gv9AQF478heJVRT1BKe+CmLtljhIXH3UTpQQdsW5IO1wDKHPzTTzi9Orsb/XVgaK
 3hTvu0VwODK7FszlhCTkNfX/eQTuqLkoMtITpGTBkSfWOZqgTf5+DvVwszcpy77z
 baeMyyDRD54fCJeA5qe/HDa1FYxbzvf5ME9VhixvNOl7T6XaiCvkAQVlDXMi9gtQ
 D4UN1vujM3MX3zc2reINd55ZKNxCIW1wFCzPin6yQT1dVsg7djk1cixnjcLg09bi
 JENoEuaYbr3t8jpeO/B3sDKA0wzGDs2gd3mEzZedCfcpELHVmdFSOIdQ+mi36CIy
 Ah71ZiPjVMGHCEqRPBQcJ0/8QyxrwU2H9N4G/7LCmngICMlcQPWFcDDJ0sBaBxkS
 FFl1ni+x3XOWXq1TTKPW+oRp2Qkj/S0LB5C5J2EFvj0NyKqHNclu640cyExMJpBQ
 cApv1dvBDttMbUXUkYODBZkBHtHs2EIGN8OqqKNWy/R+riHbtjLD92YEYE3PEY5r
 g+V+q+xE4aplczhezHTwQuXbl/hB2aaHU/MhCdjLNF6aHkziS0/IGJIH+dbWZZMe
 bamgZFfy72QNQIJkbqANyv9R8Z77Xk0bFBCQ4OdlvQUAqwhGLAf5rDzl8QFLNk0B
 zqyKxfnZQdCQmrCYyYp3
 =bbQ3
 -----END PGP SIGNATURE-----

Merge tag 'arc-4.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc

Pull ARC fixes from Vineet Gupta:

 - Fixes for HSDK platform

 - module build error for !LLSC config

* tag 'arc-4.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: unbork module link errors with !CONFIG_ARC_HAS_LLSC
  ARC: [plat-hsdk] Increase SDIO CIU frequency to 50000000Hz
  ARC: [plat-hsdk] select CONFIG_RESET_HSDK from Kconfig
2017-10-27 20:38:47 -07:00
Linus Torvalds fe23429e6b Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fix from Martin Schwidefsky:
 "A fix for a regression in regard to machine check handling in KVM.

  Keeping my fingers crossed that this is the last s390 fix for v4.14"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/kvm: fix detection of guest machine checks
2017-10-27 20:32:24 -07:00
Linus Torvalds d3eab75a7f Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "Misc fixes:

   - revert a /dev/mem restriction change that crashes with certain boot
     parameters

   - an AMD erratum fix for cases where the BIOS doesn't apply it

   - fix unwinder debuginfo

   - improve ORC unwinder warning printouts"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "x86/mm: Limit mmap() of /dev/mem to valid physical addresses"
  x86/unwind: Show function name+offset in ORC error messages
  x86/entry: Fix idtentry unwind hint
  x86/cpu/AMD: Apply the Erratum 688 fix when the BIOS doesn't
2017-10-27 17:19:39 -07:00
Linus Torvalds 02c7dfc006 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fix from Ingo Molnar:
 "A fix for a misplaced permission check that can leave perf PT or LBR
  disabled (on Intel CPUs) permanently until the next reboot"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/bts: Fix exclusive event reference leak
2017-10-27 17:15:49 -07:00
Ingo Molnar 90edaac627 Revert "x86/mm: Limit mmap() of /dev/mem to valid physical addresses"
This reverts commit ce56a86e2a.

There's unanticipated interaction with some boot parameters like 'mem=',
which now cause the new checks via valid_mmap_phys_addr_range() to be too
restrictive, crashing a Qemu bootup in fact, as reported by Fengguang Wu.

So while the motivation of the change is still entirely valid, we
need a few more rounds of testing to get it right - it's way too late
after -rc6, so revert it for now.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Craig Bergstrom <craigb@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: dsafonov@virtuozzo.com
Cc: kirill.shutemov@linux.intel.com
Cc: mhocko@suse.com
Cc: oleg@redhat.com
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-27 10:06:49 +02:00
Sebastian Andrzej Siewior a494ee6cfd arm/xen: don't inclide rwlock.h directly.
rwlock.h should not be included directly. Instead linux/splinlock.h
should be included. One thing it does is to break the RT build.

Cc: Stefano Stabellini <sstabellini@kernel.org>
Cc: xen-devel@lists.xenproject.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
2017-10-26 16:58:17 -04:00
Lorenzo Pieralisi 814eae5982 alpha/PCI: Move pci_map_irq()/pci_swizzle() out of initdata
The introduction of {map/swizzle}_irq() hooks in the struct pci_host_bridge
allowed to replace the pci_fixup_irqs() PCI IRQ allocation in alpha arch
PCI code with per-bridge map/swizzle functions with commit 0e4c2eeb75
("alpha/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping
hooks").

As a side effect of converting PCI IRQ allocation to the struct
pci_host_bridge {map/swizzle}_irq() hooks mechanism, the actual PCI IRQ
allocation function (ie pci_assign_irq()) is carried out per-device in
pci_device_probe() that is called when a PCI device driver is about to be
probed.

This means that, for drivers compiled as loadable modules, the actual PCI
device IRQ allocation can now happen after the system has booted so the
struct pci_host_bridge {map/swizzle}_irq() hooks pci_assign_irq() relies on
must stay valid after the system has booted so that PCI core can carry out
PCI IRQ allocation correctly.

Most of the alpha board structures pci_map_irq() and pci_swizzle() hooks
(that are used to initialize their struct pci_host_bridge equivalent
through the alpha_mv global variable - that represents the struct
alpha_machine_vector of the running kernel) are marked as
__init/__initdata; this causes freed memory dereferences when PCI IRQ
allocation is carried out after the kernel has booted (ie when loading PCI
drivers as loadable module) because when the kernel tries to bind the PCI
device to its (module) driver, the function pci_assign_irq() is called,
that in turn retrieves the struct pci_host_bridge {map/swizzle}_irq() hooks
to carry out PCI IRQ allocation; if those hooks are marked as __init
code/__initdata they point at freed/invalid memory.

Fix the issue by removing the __init/__initdata markers from all subarch
struct alpha_machine_vector.pci_map_irq()/pci_swizzle() functions (and
data).

Fixes: 0e4c2eeb75 ("alpha/PCI: Replace pci_fixup_irqs() call with host bridge IRQ mapping hooks")
Link: http://lkml.kernel.org/r/alpine.LRH.2.21.1710251043170.7098@math.ut.ee
Reported-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Meelis Roos <mroos@linux.ee>
Cc: Matt Turner <mattst88@gmail.com>
2017-10-26 11:53:38 -05:00
Martin Schwidefsky 0a5e2ec264 s390/kvm: fix detection of guest machine checks
The new detection code for guest machine checks added a check based
on %r11 to .Lcleanup_sie to distinguish between normal asynchronous
interrupts and machine checks. But the funtion is called from the
program check handler as well with an undefined value in %r11.

The effect is that all program exceptions pointing to the SIE instruction
will set the CIF_MCCK_GUEST bit. The bit stays set for the CPU until the
 next machine check comes in which will incorrectly be interpreted as a
guest machine check.

The simplest fix is to stop using .Lcleanup_sie in the program check
handler and duplicate a few instructions.

Fixes: c929500d7a ("s390/nmi: s390: New low level handling for machine check happening in guest")
Cc: <stable@vger.kernel.org> # v4.13+
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-10-25 07:59:30 +02:00
Linus Torvalds ae59df0349 KVM fixes for v4.14-rc7
PPC fixes for potential host oops and hangs.
 -----BEGIN PGP SIGNATURE-----
 
 iQEcBAABCAAGBQJZ7yJGAAoJEED/6hsPKofoQuAIAK6iRlI7jCI3E5sDZGKSC7J0
 u+NT0rTjhdvwHyVBVRVhVvWMaJNtqVULdw8CZ2J/Nw1bpJKCzUeYgrniJf+cn/2I
 fMQGvhM07F242oJIyeKQuss57WaL16+5K1/6kEareSwLRGnineg02gBF1/udV3/v
 ACVz7IcA5jZgfD5/dwQlivH7WDnYGMP6Tv15ypDAXiewfqYgPjJMi88rtChuGfIX
 /xtwHbxnA0szolqbt55WjFHWkZ4IV5xjpqaA+sObQ6EnXE00wi/TRX3QfTW2mlgw
 bO2NaMQLWZMK7F02gYKgBd3HNfG2Rql52HFZtkoFHA8LuHpQLvzENHD/80+zOFg=
 =qbsF
 -----END PGP SIGNATURE-----

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull KVM fixes from Radim Krčmář:
 "PPC fixes for potential host oops and hangs"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: PPC: Book3S HV: Add more barriers in XIVE load/unload code
  KVM: PPC: Book3S: Protect kvmppc_gpa_to_ua() with SRCU
  KVM: PPC: Book3S HV: POWER9 more doorbell fixes
  KVM: PPC: Fix oops when checking KVM_CAP_PPC_HTM
2017-10-24 18:51:59 +02:00
Alexander Shishkin 2eece390bf perf/x86/intel/bts: Fix exclusive event reference leak
Commit:

  d2878d642a ("perf/x86/intel/bts: Disallow use by unprivileged users on paranoid systems")

... adds a privilege check in the exactly wrong place in the event init path:
after the 'LBR exclusive' reference has been taken, and doesn't release it
in the case of insufficient privileges. After this, nobody in the system
gets to use PT or LBR afterwards.

This patch moves the privilege check to where it should have been in the
first place.

Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: d2878d642a ("perf/x86/intel/bts: Disallow use by unprivileged users on paranoid systems")
Link: http://lkml.kernel.org/r/20171023123533.16973-1-alexander.shishkin@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-24 13:19:27 +02:00
Josh Poimboeuf 58c3862b52 x86/unwind: Show function name+offset in ORC error messages
Improve the warning messages to show the relevant function name+offset.
This makes it much easier to diagnose problems with the ORC metadata.

Before:

  WARNING: can't dereference iret registers at ffff8801c5f17fe0 for ip ffffffff95f0d94b

After:

  WARNING: can't dereference iret registers at ffff880178f5ffe0 for ip int3+0x5b/0x60

Reported-by: Andrei Vagin <avagin@virtuozzo.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: ee9f8fce99 ("x86/unwind: Add the ORC unwinder")
Link: http://lkml.kernel.org/r/6bada6b9eac86017e16bd79e1e77877935cb50bb.1508516398.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-23 13:30:36 +02:00
Josh Poimboeuf 98990a33b7 x86/entry: Fix idtentry unwind hint
This fixes the following ORC warning in the 'int3' entry code:

  WARNING: can't dereference iret registers at ffff8801c5f17fe0 for ip ffffffff95f0d94b

The ORC metadata had the wrong stack offset for the iret registers.

Their location on the stack is dependent on whether the exception has an
error code.

Reported-and-tested-by: Andrei Vagin <avagin@virtuozzo.com>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 8c1f75587a ("x86/entry/64: Add unwind hint annotations")
Link: http://lkml.kernel.org/r/931d57f0551ed7979d5e7e05370d445c8e5137f8.1508516398.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-23 13:30:35 +02:00
Borislav Petkov bfc1168de9 x86/cpu/AMD: Apply the Erratum 688 fix when the BIOS doesn't
Some F14h machines have an erratum which, "under a highly specific
and detailed set of internal timing conditions" can lead to skipping
instructions and RIP corruption.

Add the fix for those machines when their BIOS doesn't apply it or
there simply isn't BIOS update for them.

Tested-by: <mirh@protonmail.ch>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sherry Hurwitz <sherry.hurwitz@amd.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Yazen Ghannam <Yazen.Ghannam@amd.com>
Link: http://lkml.kernel.org/r/20171022104731.28249-1-bp@alien8.de
Link: https://bugzilla.kernel.org/show_bug.cgi?id=197285
[ Added pr_info() that we activated the workaround. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-22 13:06:02 +02:00
Linus Torvalds 936fd00549 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 couple of fixes addressing the following issues:

   - The last polishing for the TLB code, removing the last BUG_ON() and
     the debug file along with tidying up the lazy TLB code.

   - Prevent triple fault on 1st Gen. 486 caused by stupidly calling the
     early IDT setup after the first function which causes a fault which
     should be caught by the exception table.

   - Limit the mmap of /dev/mem to valid addresses

   - Prevent late microcode loading on Broadwell X

   - Remove a redundant assignment in the cache info code"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm: Limit mmap() of /dev/mem to valid physical addresses
  x86/mm: Remove debug/x86/tlb_defer_switch_to_init_mm
  x86/mm: Tidy up "x86/mm: Flush more aggressively in lazy TLB mode"
  x86/mm/64: Remove the last VM_BUG_ON() from the TLB code
  x86/microcode/intel: Disable late loading on model 79
  x86/idt: Initialize early IDT before cr4_init_shadow()
  x86/cpu/intel_cacheinfo: Remove redundant assignment to 'this_leaf'
2017-10-22 06:58:23 -04:00
Linus Torvalds 9c323bff13 Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
 "Three fixes this time around:

   - ensure sparse realises that we're building for a 32-bit arch on
     64-bit hosts.

   - use the correct instruction for semihosting on v7m (nommu) CPUs.

   - reserve address 0 to prevent the first page of memory being used on
     nommu systems"

* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
  ARM: 8704/1: semihosting: use proper instruction on v7m processors
  ARM: 8701/1: fix sparse flags for build on 64bit machines
  ARM: 8700/1: nommu: always reserve address 0 away
2017-10-20 18:20:17 -04:00
Linus Torvalds 545ea16f7c ARM: SoC fixes for 4.14
Here is another set of bugfixes for ARM SoCs, mostly harmless:
 
  - A boot regression fix on ux500
  - PCIe interrupts on NXP i.MX7 and on Marvell Armada 7K/8K were
    wired up wrong, in different ways
  - Armada XP support for large memory never worked
  - The socfpga reset controller now builds on 64-bit
  - minor device tree corrections on gemini, mvebu, r-pi 3,
    rockchip and at91
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIVAwUAWeppyWCrR//JCVInAQIfVQ//cQDz9jv//4tMhBJeLxpcTe62U0HL3gG/
 pCUXUxUKQxTTuvUm2Ecx+YpeFfS4hDEOAVi8wDAgJ6yBhW+jrIasiVq5XaspR6/C
 DicscLdW3YJ6hjBfk87mbC7F6wu8aTzZa4xkwjJ1L0XbNSq7oOBaoff8dhMNnzC8
 w1HuLu/laAaTEhiHZ1M/hkjx9VxA2j0AQvhdV7Ebrh3Wk+2wYB1QhWngLgHBIZsC
 1VVOtHCtRtfrIBSnHjjx/Wvcwln6fUNUXJGgp3K/oJeNE6M2D2FxA0ylB6YiYmmf
 jRdXypqiE6xjRJa7yru/Q1LfLzt5dQibSQYNsU+ljJ7Wp/3V9F1Ms43hXROunPRN
 Exebvi7BDjGO+/MxgD/FLFltndJRsmnZPD0+M8+zWcHIrC1N1ULrBO8HfdIWxm/x
 nNOvx17dEUCg8azwFlmfjxXIq4p/4qv+LzbkFVPOlPf1y4xzvMthkAyKiN1vGVoO
 d5O7HeTc4ciPG/qxcL4zdwDo4qgeMTDJNrTRJ+4oxjkKxHDHH3gpYXKdKWCFXT+W
 5/Y+kIYEQChNNRdXqQ1Xx4xgdZaHfu6J3QrfNs0291yjLDUyCjk4FtDZBzlWO/SH
 F8rE79QOwYbZGgth2b/RqX4/IxAzE7wviUVlBUja4NcPcDkwk2hPHqiyfkYmXaTn
 a80A7sWIjSM=
 =M8dW
 -----END PGP SIGNATURE-----

Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Here is another set of bugfixes for ARM SoCs, mostly harmless:

   - a boot regression fix on ux500

   - PCIe interrupts on NXP i.MX7 and on Marvell Armada 7K/8K were wired
     up wrong, in different ways

   - Armada XP support for large memory never worked

   - the socfpga reset controller now builds on 64-bit

   - minor device tree corrections on gemini, mvebu, r-pi 3, rockchip
     and at91"

* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
  ARM: ux500: Fix regression while init PM domains
  ARM: dts: fix PCLK name on Gemini and MOXA ART
  arm64: dts: rockchip: fix typo in iommu nodes
  arm64: dts: rockchip: correct vqmmc voltage for rk3399 platforms
  ARM: dts: imx7d: Invert legacy PCI irq mapping
  bus: mbus: fix window size calculation for 4GB windows
  ARM: dts: at91: sama5d2: add ADC hw trigger edge type
  ARM: dts: at91: sama5d2_xplained: enable ADTRG pin
  ARM: dts: at91: at91-sama5d27_som1: fix PHY ID
  ARM: dts: bcm283x: Fix console path on RPi3
  reset: socfpga: fix for 64-bit compilation
  ARM: dts: Fix I2C repeated start issue on Armada-38x
  arm64: dts: marvell: fix interrupt-map property for Armada CP110 PCIe controller
  arm64: dts: salvator-common: add 12V regulator to backlight
  ARM: dts: sun6i: Fix endpoint IDs in second display pipeline
  arm64: allwinner: a64: pine64: Use dcdc1 regulator for mmc0
2017-10-20 18:17:43 -04:00
Arnd Bergmann 6bf99a6cb6 Allwinner fixes for 4.14
Two fixes, one for the A31 DRM binding, and one for a missing regulator on
 the pine MMC controller.
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABAgAGBQJZ6axFAAoJEBx+YmzsjxAgRPQQAL8SNIbznqcV1ncW1SXBH/hg
 W1UCfclJfCJ1nrctsfXIgDpIJAGjVR+PEh8kBHgyqknqLJ6bQpJOqfHzSZk+SWF4
 1NuosdxLMW9V9wrwzNUUYD6Jh3VoJAgKDcWBPeY9eUvvLq6wnzXmSXPBtTUlXuNp
 XcXoT7TCSlUZ0rvJKPe2ON+BH1hjYhNnHs07TN2x2lbYQMbEcLLzqBOyfxESzQ5w
 hAb8gpJhGSDAk2pJXtyviSNokx5fqSePnKmfPNG42QHXq+cvt6aCcosqZ9u3OuAx
 eNTVTZPlvnQ/GfjEouG4NTjYbv5cXdN8itqaSypMeN+8xpOJ/mFDa8K/vzyzF2Kr
 6svpe4SC0YB6z4YtKFLR0Q6a/MlgMNq02WW5l+oq8e44pwyPRYFeTNNP8yD9ZO0k
 xlhgNyo+/KIXGx6XBga27x3IyaWopGslLK/UjG4El0jOAPISiuZcbF6GCsFht7dk
 YSVEVQ842v2iX817kaDy1zGTOy0b9j9/AOu6ctZlsP9XM9YaMxi7pFrb+UFu6FSJ
 yRR8TNZjjrSMsuDc8yrbH0/nWcgkmQtYXa2iQ4/2ILlW63zrm2yM7w8CKygyZ25D
 NhuK/yQ+PEsKYDAJ3s3T3hUbirAmQx3KUmv6Jr7UUPaj6V5a62Jl/pt5+oSlGQm7
 EBkvmIV+XXwmqng7Y/WF
 =Cvge
 -----END PGP SIGNATURE-----

Merge tag 'sunxi-fixes-for-4.14' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into fixes

Pull "Allwinner fixes for 4.14" from Maxime Ripard:

Two fixes, one for the A31 DRM binding, and one for a missing regulator on
the pine MMC controller.

* tag 'sunxi-fixes-for-4.14' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  ARM: dts: sun6i: Fix endpoint IDs in second display pipeline
  arm64: allwinner: a64: pine64: Use dcdc1 regulator for mmc0
2017-10-20 22:24:48 +02:00
Craig Bergstrom ce56a86e2a x86/mm: Limit mmap() of /dev/mem to valid physical addresses
Currently, it is possible to mmap() any offset from /dev/mem.  If a
program mmaps() /dev/mem offsets outside of the addressable limits
of a system, the page table can be corrupted by setting reserved bits.

For example if you mmap() offset 0x0001000000000000 of /dev/mem on an
x86_64 system with a 48-bit bus, the page fault handler will be called
with error_code set to RSVD.  The kernel then crashes with a page table
corruption error.

This change prevents this page table corruption on x86 by refusing
to mmap offsets higher than the highest valid address in the system.

Signed-off-by: Craig Bergstrom <craigb@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Luis R. Rodriguez <mcgrof@suse.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: dsafonov@virtuozzo.com
Cc: kirill.shutemov@linux.intel.com
Cc: mhocko@suse.com
Cc: oleg@redhat.com
Link: http://lkml.kernel.org/r/20171019192856.39672-1-craigb@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-20 09:48:00 +02:00
Arnd Bergmann 716479a39f Renesas ARM Based SoC Fixes for v4.14
Add 12V regulator to backlight allowing the power supply
 for the backlight to be found.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQIcBAABAgAGBQJZyLGhAAoJENfPZGlqN0++U5oQAKjIikenaz1ZlG25+cWCgkxa
 E+PMqSH49eUpHqtJlHC0nRF4H9terzMMLHYQPL1SZME8j56x5bjGI80OtnBKdD0V
 GxXrpPv9ekl5vBBroQM6/1ZS9v1aFWjlNzpV1jC+TQwtTEo2xzr4+DJ+z4vllyps
 bptOIn3ix/NuNSl5P146buSOKBumSB4advGh9emzrsGc41RUCgfaGZmIlyvmkorf
 3vW/NW9fBk+bauZT2AH1gYEsxlCMPBr6EmUJAiSLAAuEXf8SsSs16ls6E5sGEEhO
 AhuKh3lfK3TZNEGiC2pDv2WNqQyr+gNM2mDRnwcIXqDpvXYtFPUHN3EcSpf+stXa
 yrJMro9BJeKmzHj7jReArxMOJsLF8KIx6udUobJ1hKAxGQJlxopJmhldGXBarMV1
 enGhp7qGSVf5VpMf2iNJo6pU6MNRB3dnel+3LtwhwG0Uxu8Y2dsWcrwxSFipmlnJ
 nAsoC3cuewHuPHCYGvyRoQ6RtKcdJ1XVcMg9nYvbQVkyBUl8o+Y/4Ock17jpG5ro
 a+F8XBowk4q1INm3QQHIqSqi7G4K01Tnhw95hcudbJwc26wtGY79CqifiKmnOq6+
 MRAG0UvtMUOVgD++vSE5vTg/f8lfRFYUu+aCCzTjEzUs1/rawXyk8I4nEqZjZx3Q
 n0U8qQGkOeZ1jUpktZz3
 =zIL3
 -----END PGP SIGNATURE-----

Merge tag 'renesas-fixes-for-v4.14' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes

Pull "Renesas ARM Based SoC Fixes for v4.14" from Simon Horman:

Add 12V regulator to backlight allowing the power supply
for the backlight to be found.

* tag 'renesas-fixes-for-v4.14' of https://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  arm64: dts: salvator-common: add 12V regulator to backlight
2017-10-19 17:58:13 +02:00
Ulf Hansson 72ecd79386 ARM: ux500: Fix regression while init PM domains
The commit afece3ab9a ("PM / Domains: Add time accounting to various
genpd states") causes a boot regression for ux500.

The problem occurs when the ux500 machine code calls pm_genpd_init(), which
since the above change triggers a call to ktime_get(). More precisely,
because ux500 initializes PM domains in the init_IRQ() phase of the boot,
timekeeping has not yet been initialized.

Fix the problem by moving the initialization of the PM domains to after
timekeeping has been initialized.

Fixes: afece3ab9a ("PM / Domains: Add time accounting to various genpd..")
Cc: Thara Gopinath <thara.gopinath@linaro.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-10-19 17:46:36 +02:00
Linus Walleij 8633e4f2e9 ARM: dts: fix PCLK name on Gemini and MOXA ART
These platforms provide a clock to their watchdog, in each
case this is the peripheral clock (PCLK), so explicitly
name the clock in the device tree.

Take this opportunity to add the "faraday,ftwdt010"
compatible as fallback to the watchdog IP blocks.

Cc: Jonas Jensen <jonas.jensen@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2017-10-19 17:45:22 +02:00
Arnd Bergmann 611e91e15e The vqmmc voltages on rk3399 pose a risk for the chip if they
exceed 3.0V, so they got fixed to not be at 3.3V
 And Arnd found a typo in the recently added iommu nodes.
 -----BEGIN PGP SIGNATURE-----
 
 iQFEBAABCAAuFiEE7v+35S2Q1vLNA3Lx86Z5yZzRHYEFAlnmSIIQHGhlaWtvQHNu
 dGVjaC5kZQAKCRDzpnnJnNEdgeaQB/9JDBD545VzXqsNixEnJOcT+X8sUZpu6OmT
 j3v5kJDPOXLfSP/Ci9S10ldix/JUBZoT2fRJCK5QAzo+NnjYWrC5qPAwGVU90TqY
 KxFZu4f1763AU2ZLw9nGJlFeVHrjhpFdYfe9GpPPLmndjM32cRdGCRI5zDaSB7s8
 popUs6qNGvI5Q770x4/xTfEqDlfdQhmYyNfWumji7ACfLTHYZnpyq0SN/o4qp/rg
 UJaPx/7PGzHIDSrEKRE3i+waG3d7Ix4th9jkmrYFAK2nIiySlZg9WIKWEOqqt+sf
 H8W3ygdlaYZlzIPJhY2r6/W1rQoJSLxxKColLrV32hDkjPfcFon5
 =YPhS
 -----END PGP SIGNATURE-----

Merge tag 'v4.14-rockchip-dts64fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip into fixes

Pull "Rockchip dts64 Fixes for 4.14 part 2" from Heiko Stübner:

The vqmmc voltages on rk3399 pose a risk for the chip if they
exceed 3.0V, so they got fixed to not be at 3.3V
And Arnd found a typo in the recently added iommu nodes.

* tag 'v4.14-rockchip-dts64fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip:
  arm64: dts: rockchip: fix typo in iommu nodes
  arm64: dts: rockchip: correct vqmmc voltage for rk3399 platforms
2017-10-19 17:42:30 +02:00
Arnd Bergmann a777713c3a i.MX fixes for 4.14:
- Fix the legacy PCI interrupt numbers for i.MX7.  The numbers were
    wrongly coded in an inverted order than what Reference Manual tells.
    It causes problem for PCI devices using legacy interrupt.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJZ5F/UAAoJEFBXWFqHsHzOQCwH/3SfH9+Akv0M0noDacXyzD+2
 MvQGppmagSl8TNeeP0kYc7wk2TeuYc24LJyEAR5xhDwkxL5LGLbXtMr5LqxJszcB
 smQqS9MHpyuIboepw3xBcDBi+vOy9fmrLv7WUnM3yEXWh6gR6VYYU0D4jK/xYmUo
 urH0j8etj5sao02s7D3O0iSEvaxIxtjOHB6i9fCcHNtJXo7iw2lv0XhyQhE73IX2
 LFkRCdtj8EBb+gjPQrXMUE0gn67mvxuzwOOVunEGwl/13cI3WQoRh7pugTB7NBNQ
 fVyBW/8TLOqkKjPinqbnyMVdS1rwel+pfC2Q8jVnjfGNjrmnCxWbcR4R8YqQJsw=
 =+4ri
 -----END PGP SIGNATURE-----

Merge tag 'imx-fixes-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes

Pull "i.MX fixes for 4.14" from Shawn Guo:

 - Fix the legacy PCI interrupt numbers for i.MX7.  The numbers were
   wrongly coded in an inverted order than what Reference Manual tells.
   It causes problem for PCI devices using legacy interrupt.

* tag 'imx-fixes-4.14' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  ARM: dts: imx7d: Invert legacy PCI irq mapping
2017-10-19 17:41:22 +02:00
Arnd Bergmann 840907f941 mvebu fixes for 4.14 (part 2)
Two device tree related fixes:
 
 - One on Armada 38x using a other compatible string for I2C in order
   to cover an errata.
 
 - One for Armada 7K/8K fixing a typo on interrupt-map property for
   PCIe leading to fail PME and AER root port service initialization
 
 And the last one for the mbus fixing the window size calculation when
 it exceed 32bits
 -----BEGIN PGP SIGNATURE-----
 
 iIEEABECAEEWIQQYqXDMF3cvSLY+g9cLBhiOFHI71QUCWeDbriMcZ3JlZ29yeS5j
 bGVtZW50QGZyZWUtZWxlY3Ryb25zLmNvbQAKCRALBhiOFHI71RAJAJ9TyT+GrMdf
 HsM7V74bSWYAUlWZ0ACcCWjIdnbVlinP+iuVS462du4HpU0=
 =2AQR
 -----END PGP SIGNATURE-----

Merge tag 'mvebu-fixes-4.14-2' of git://git.infradead.org/linux-mvebu into fixes

Pull "mvebu fixes for 4.14 (part 2)" from Gregory CLEMENT

Two device tree related fixes:

- One on Armada 38x using a other compatible string for I2C in order
  to cover an errata.

- One for Armada 7K/8K fixing a typo on interrupt-map property for
  PCIe leading to fail PME and AER root port service initialization

And the last one for the mbus fixing the window size calculation when
it exceed 32bits

* tag 'mvebu-fixes-4.14-2' of git://git.infradead.org/linux-mvebu:
  bus: mbus: fix window size calculation for 4GB windows
  ARM: dts: Fix I2C repeated start issue on Armada-38x
  arm64: dts: marvell: fix interrupt-map property for Armada CP110 PCIe controller
2017-10-19 17:40:11 +02:00
Arnd Bergmann ca7325a2b1 Fixes: second batch for 4.14:
- one DT phy address fix for the new sama5d27 som1 ek
 - two DT ADC patches that were forgotten while moving to
   hardware triggers for sama5d2 (iio changes already applied)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJZ24QUAAoJEAf03oE53VmQHGAIAJcmiYj0qsO8ModMQjFSBR6Q
 YW/7r8TAvJDgABWdu1RcpBFhGuZepYEBNToDtYAP/fLWJ14s0PqpJFM0JKZWUh4Q
 SsX6zKuUcER09QyvFRmRRtF6HlyL/X84Rkf6wUfNvdaUOEUNF4qotG/6281ZlHxF
 +RdKQkvx6Tv9oZAKyk9dwiYj6YtmGhZ4JQNoj+4yCqQ+ImLVlbfkLGMSPIzE1/KO
 3+crrYTFl+hFcy+66hFgMz7RvbH0k+6djBkg2PDV1aD2EklStP6V98Wpxwm+fYhz
 ka2Up5w+aDlp5Snif7+pH6oP0A1FvveTlv3t1wp3q9B2iqF7Ps4A+9J1L7p0n/4=
 =W4R5
 -----END PGP SIGNATURE-----

Merge tag 'at91-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into fixes

Fixes: second batch for 4.14:
- one DT phy address fix for the new sama5d27 som1 ek
- two DT ADC patches that were forgotten while moving to
  hardware triggers for sama5d2 (iio changes already applied)

* tag 'at91-fixes2' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91:
  ARM: dts: at91: sama5d2: add ADC hw trigger edge type
  ARM: dts: at91: sama5d2_xplained: enable ADTRG pin
  ARM: dts: at91: at91-sama5d27_som1: fix PHY ID
2017-10-19 17:36:08 +02:00
Arnd Bergmann 4cb4261dc2 This pull request contains Broadcom ARM-based SoC Device Tree fixes for 4.14,
please pull the following:
 
 - Loic fixes the console path on the Raspberry Pi 3 which was not correctly set
   and would cause all sorts of confusion between the Bluetooth controller and the
   kernel console
 -----BEGIN PGP SIGNATURE-----
 
 iQIcBAABCAAGBQJZ2AFxAAoJEIfQlpxEBwcEFcsP/375LxHvuaw3Uo6HlrJ77+sF
 RM1E6DfDPkcfk9MQ+U3UUKWBk66HU76epVIX+8H/ERxB0Y7gShhHG7wX54YzsA5Z
 Wh/KiHC0HUGAhZWguOK88JSj9cO90k35tSp+JHktVbtI6lf2r14ZQeMgcnulFuHM
 rAbBmC+ap2ACOtGKg/Glj3205yqhllxUEBU3pu5kDZaRWTGqifJaa4DyKGGDx7KS
 YDqAYs3EB6i753CDwoztxtQj1gEVrFSmLEcbdrUnAPGFTv2IDy2faxjpfAdus6q4
 NMzSa0A4MRsEM/FaxYyF64y0SQyqeEFZ7Znj8bU7mEJrE0cpjPEXrRRqwCyceIv3
 4FjEIkd2x8b+drIm6yXaMAQuMSuIsWwO2RUGJnF8JG8XXMuUDL5bZpnn2RrsTmcb
 RjcOddgPgQusLJnRB86SkHWts8Bu/a8Q+gQQgfZsVXtpqZvyjEw3GPWnPoQEKmCI
 ZvDbIP7VQe+niCGMBu9jez+sNjOkvUz0SyWnPg/Va0lofKifp4ZZxlX9SwRFOQAy
 ii3b5O+WYCVNnWgGOBkSOHbqb6nnrpwgQk2CsdRuB86c/yzhv3/dpr+cXPSX0h+q
 4c5fNxfcJThgSL86lm/L/SZ1Fuc+MFbYaKcLJLMY1JZ7kxUcaKMqrRUojh9/AoiU
 89ksb1UE2vTclL8q1nyY
 =GeQi
 -----END PGP SIGNATURE-----

Merge tag 'arm-soc/for-4.14/devicetree-fixes' of http://github.com/Broadcom/stblinux into fixes

Pull "Broadcom devicetree fixes for 4.14" from Florian Fainelli:

This pull request contains Broadcom ARM-based SoC Device Tree fixes for 4.14,
please pull the following:

- Loic fixes the console path on the Raspberry Pi 3 which was not correctly set
  and would cause all sorts of confusion between the Bluetooth controller and the
  kernel console

* tag 'arm-soc/for-4.14/devicetree-fixes' of http://github.com/Broadcom/stblinux:
  ARM: dts: bcm283x: Fix console path on RPi3
2017-10-19 17:30:31 +02:00
Radim Krčmář cc9085b687 Merge branch 'kvm-ppc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
Fix potential host oops and hangs.
2017-10-19 14:42:09 +02:00
Helge Deller 8642b31ba9 parisc: Fix detection of nonsynchronous cr16 cycle counters
For CPUs which have an unknown or invalid CPU location (physical location)
assume that their cycle counters aren't syncronized across CPUs.

Signed-off-by: Helge Deller <deller@gmx.de>
Fixes: c8c3735997 ("parisc: Enhance detection of synchronous cr16 clocksources")
Cc: stable@vger.kernel.org # 4.13+
Signed-off-by: Helge Deller <deller@gmx.de>
2017-10-19 09:21:24 +02:00
Guenter Roeck 2aae008ca6 parisc: Export __cmpxchg_u64 unconditionally
__cmpxchg_u64 is built and used outside CONFIG_64BIT and thus needs to
be exported. This fixes the following build error seen when building
parisc:allmodconfig.

ERROR: "__cmpxchg_u64" [drivers/net/ethernet/intel/i40e/i40e.ko] undefined!

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Helge Deller <deller@gmx.de>
2017-10-19 08:48:45 +02:00
John David Anglin 374b3bf8e8 parisc: Fix double-word compare and exchange in LWS code on 32-bit kernels
As discussed on the debian-hppa list, double-wordcompare and exchange
operations fail on 32-bit kernels.  Looking at the code, I realized that
the ",ma" completer does the wrong thing in the  "ldw,ma  4(%r26), %r29"
instruction.  This increments %r26 and causes the following store to
write to the wrong location.

Note by Helge Deller:
The patch applies cleanly to stable kernel series if this upstream
commit is merged in advance:
f4125cfdb3 ("parisc: Avoid trashing sr2 and sr3 in LWS code").

Signed-off-by: John David Anglin <dave.anglin@bell.net>
Tested-by: Christoph Biedl <debian.axhn@manchmal.in-ulm.de>
Fixes: 8920649120 ("parisc: Implement new LWS CAS supporting 64 bit operations.")
Cc: stable@vger.kernel.org # 3.13+
Signed-off-by: Helge Deller <deller@gmx.de>
2017-10-19 08:48:44 +02:00
Andy Lutomirski 7ac7f2c315 x86/mm: Remove debug/x86/tlb_defer_switch_to_init_mm
Borislav thinks that we don't need this knob in a released kernel.
Get rid of it.

Requested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: b956575bed ("x86/mm: Flush more aggressively in lazy TLB mode")
Link: http://lkml.kernel.org/r/1fa72431924e81e86c164ff7881bf9240d1f1a6c.1508000261.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-18 15:25:02 +02:00
Andy Lutomirski 4e57b94664 x86/mm: Tidy up "x86/mm: Flush more aggressively in lazy TLB mode"
Due to timezones, commit:

  b956575bed ("x86/mm: Flush more aggressively in lazy TLB mode")

was an outdated patch that well tested and fixed the bug but didn't
address Borislav's review comments.

Tidy it up:

 - The name "tlb_use_lazy_mode()" was highly confusing.  Change it to
   "tlb_defer_switch_to_init_mm()", which describes what it actually
   means.

 - Move the static_branch crap into a helper.

 - Improve comments.

Actually removing the debugfs option is in the next patch.

Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: b956575bed ("x86/mm: Flush more aggressively in lazy TLB mode")
Link: http://lkml.kernel.org/r/154ef95428d4592596b6e98b0af1d2747d6cfbf8.1508000261.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-18 15:25:02 +02:00
Andy Lutomirski e8b9b0cc82 x86/mm/64: Remove the last VM_BUG_ON() from the TLB code
Let's avoid hard-to-diagnose crashes in the future.

Signed-off-by: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/f423bbc97864089fbdeb813f1ea126c6eaed844a.1508000261.git.luto@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-18 15:25:02 +02:00
Borislav Petkov 723f2828a9 x86/microcode/intel: Disable late loading on model 79
Blacklist Broadwell X model 79 for late loading due to an erratum.

Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: <stable@vger.kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20171018111225.25635-1-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-18 15:20:20 +02:00
Linus Torvalds 96b0e525af Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Martin Schwidefsky:
 "Two bug fixes:

   - A fix for cputime accounting vs CPU hotplug

   - Add two options to zfcpdump_defconfig to make SCSI dump work again"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: fix zfcpdump-config
  s390/cputime: fix guest/irq/softirq times after CPU hotplug
2017-10-18 06:45:52 -04:00
Arnd Bergmann b521102d93 arm64: dts: rockchip: fix typo in iommu nodes
The latest dtc warns about an extraneous cell in the interrupt
property of two of the iommu device nodes:

Warning (interrupts_property): interrupts size is (16), expected multiple of 12 in /iommu@ff373f00
Warning (interrupts_property): interrupts size is (16), expected multiple of 12 in /iommu@ff900800

This removes the typo.

Fixes: cede4c79de ("arm64: dts: rockchip: add rk3368 iommu nodes")
Fixes: 49c82f2b7c ("arm64: dts: rockchip: add rk3328 iommu nodes")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-10-17 20:13:52 +02:00
Shawn Lin b31ce30417 arm64: dts: rockchip: correct vqmmc voltage for rk3399 platforms
The vcc_sd or vcc_sdio used for IO voltage for sdmmc and sdio
interface on rk3399 platform have a limitation that it can't be
larger than 3.0v, otherwise it has a potential risk for the chip.
Correct all of them.

Fixes: 171582e00d ("arm64: dts: rockchip: add support for firefly-rk3399 board")
Fixes: 2c66fc34e9 ("arm64: dts: rockchip: add RK3399-Q7 (Puma) SoM")
Fixes: 8164a84cca ("arm64: dts: rockchip: Add support for rk3399 sapphire SOM")
Cc: stable@vger.kernel.org
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Tested-by: Klaus Goger <klaus.goger@theobroma-systems.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2017-10-17 20:07:00 +02:00
Thomas Gleixner 9c48c0965b x86/idt: Initialize early IDT before cr4_init_shadow()
Moving the early IDT setup out of assembly code breaks the boot on first
generation 486 systems.

The reason is that the call of idt_setup_early_handler, which sets up the
early handlers was added after the call to cr4_init_shadow().

cr4_init_shadow() tries to read CR4 which is not available on those
systems. The accessor function uses a extable fixup to handle the resulting
fault. As the IDT is not set up yet, the cr4 read exception causes an
instantaneous reboot for obvious reasons.

Call idt_setup_early_handler() before cr4_init_shadow() so IDT is set up
before the first exception hits.

Fixes: 87e81786b1 ("x86/idt: Move early IDT setup out of 32-bit asm")
Reported-and-tested-by:  Matthew Whitehead <whiteheadm@acm.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Andy Lutomirski <luto@kernel.org>
Link: https://lkml.kernel.org/r/alpine.DEB.2.20.1710161210290.1973@nanos
2017-10-16 20:47:37 +02:00
Colin Ian King e6fc454b77 x86/cpu/intel_cacheinfo: Remove redundant assignment to 'this_leaf'
The 'this_leaf' variable is assigned a value that is never
read and it is updated a little later with a newer value,
hence we can remove the redundant assignment.

Cleans up the following Clang warning:

  Value stored to 'this_leaf' is never read

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: kernel-janitors@vger.kernel.org
Link: http://lkml.kernel.org/r/20171015160203.12332-1-colin.king@canonical.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2017-10-16 09:25:18 +02:00
Dimitri John Ledkov 0015a978a2 s390: fix zfcpdump-config
zipl from s390-tools generates root=/dev/ram0 kernel cmdline for
zfcpdump, thus BLK_DEV_RAM is required.

zfcpdump initrd mounts DEBUG_FS, thus is also required.

Bug-Ubuntu: https://launchpad.net/bugs/1722735
Bug-Ubuntu: https://launchpad.net/bugs/1719290

Signed-off-by: Dimitri John Ledkov <xnox@ubuntu.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-10-16 08:19:01 +02:00
Christian Borntraeger b7662eef14 s390/cputime: fix guest/irq/softirq times after CPU hotplug
On CPU hotplug some cpu stats contain bogus values:

$ cat /proc/stat
cpu 0 0 49 1280 0 0 0 3 0 0
cpu0 0 0 49 618 0 0 0 3 0 0
cpu1 0 0 0 662 0 0 0 0 0 0
[...]
$ echo 0 > /sys/devices/system/cpu/cpu1/online
$ echo 1 > /sys/devices/system/cpu/cpu1/online
$ cat /proc/stat
cpu 0 0 49 3200 0 450359962737 450359962737 3 0 0
cpu0 0 0 49 1956 0 0 0 3 0 0
cpu1 0 0 0 1244 0 450359962737 450359962737 0 0 0
[...]

pcpu_attach_task() needs the same assignments as vtime_task_switch.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Fixes: b7394a5f4c ("sched/cputime, s390: Implement delayed accounting of system time")
Cc: stable@vger.kernel.org # 4.11+
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2017-10-16 08:19:01 +02:00
Benjamin Herrenschmidt ad98dd1a75 KVM: PPC: Book3S HV: Add more barriers in XIVE load/unload code
On POWER9 systems, we push the VCPU context onto the XIVE (eXternal
Interrupt Virtualization Engine) hardware when entering a guest,
and pull the context off the XIVE when exiting the guest.  The push
is done with cache-inhibited stores, and the pull with cache-inhibited
loads.

Testing has revealed that it is possible (though very rare) for
the stores to get reordered with the loads so that we end up with the
guest VCPU context still loaded on the XIVE after we have exited the
guest.  When that happens, it is possible for the same VCPU context
to then get loaded on another CPU, which causes the machine to
checkstop.

To fix this, we add I/O barrier instructions (eieio) before and
after the push and pull operations.  As partial compensation for the
potential slowdown caused by the extra barriers, we remove the eieio
instructions between the two stores in the push operation, and between
the two loads in the pull operation.  (The architecture requires
loads to cache-inhibited, guarded storage to be kept in order, and
requires stores to cache-inhibited, guarded storage likewise to be
kept in order, but allows such loads and stores to be reordered with
respect to each other.)

Reported-by: Carol L Soto <clsoto@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
2017-10-16 08:46:46 +11:00
Linus Torvalds e7a36a6ec9 Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Ingo Molnar:
 "A landry list of fixes:

   - fix reboot breakage on some PCID-enabled system

   - fix crashes/hangs on some PCID-enabled systems

   - fix microcode loading on certain older CPUs

   - various unwinder fixes

   - extend an APIC quirk to more hardware systems and disable APIC
     related warning on virtualized systems

   - various Hyper-V fixes

   - a macro definition robustness fix

   - remove jprobes IRQ disabling

   - various mem-encryption fixes"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/microcode: Do the family check first
  x86/mm: Flush more aggressively in lazy TLB mode
  x86/apic: Update TSC_DEADLINE quirk with additional SKX stepping
  x86/apic: Silence "FW_BUG TSC_DEADLINE disabled due to Errata" on hypervisors
  x86/mm: Disable various instrumentations of mm/mem_encrypt.c and mm/tlb.c
  x86/hyperv: Fix hypercalls with extended CPU ranges for TLB flushing
  x86/hyperv: Don't use percpu areas for pcpu_flush/pcpu_flush_ex structures
  x86/hyperv: Clear vCPU banks between calls to avoid flushing unneeded vCPUs
  x86/unwind: Disable unwinder warnings on 32-bit
  x86/unwind: Align stack pointer in unwinder dump
  x86/unwind: Use MSB for frame pointer encoding on 32-bit
  x86/unwind: Fix dereference of untrusted pointer
  x86/alternatives: Fix alt_max_short macro to really be a max()
  x86/mm/64: Fix reboot interaction with CR4.PCIDE
  kprobes/x86: Remove IRQ disabling from jprobe handlers
  kprobes/x86: Set up frame pointer in kprobe trampoline
2017-10-14 15:26:38 -04:00
Linus Torvalds 7b764cedcb Merge branch 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull RAS fixes from Ingo Molnar:
 "A boot parameter fix, plus a header export fix"

* 'ras-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Hide mca_cfg
  RAS/CEC: Use the right length for "cec_disable"
2017-10-14 15:19:11 -04:00
Linus Torvalds 26c923ab19 Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Ingo Molnar:
 "Some tooling fixes plus three kernel fixes: a memory leak fix, a
  statistics fix and a crash fix"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/uncore: Fix memory leaks on allocation failures
  perf/core: Fix cgroup time when scheduling descendants
  perf/core: Avoid freeing static PMU contexts when PMU is unregistered
  tools include uapi bpf.h: Sync kernel ABI header with tooling header
  perf pmu: Unbreak perf record for arm/arm64 with events with explicit PMU
  perf script: Add missing separator for "-F ip,brstack" (and brstackoff)
  perf callchain: Compare dsos (as well) for CCKEY_FUNCTION
2017-10-14 15:16:49 -04:00
Andrey Smirnov 1c86c9dd82 ARM: dts: imx7d: Invert legacy PCI irq mapping
According to i.MX7D reference manual (Rev. 0.1, table 7-1, page 1221)
legacy PCI interrupt mapping is as follows:

 - PCIE INT A is IRQ 122
 - PCIE INT B is IRQ 123
 - PCIE INT C is IRQ 124
 - PCIE INT D is IRQ 125

Invert the mapping information in corresponding DT node to reflect
that.

Cc: yurovsky@gmail.com
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Fixes: a816d5750e ("ARM: dts: imx7d: Add node for PCIe controller")
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2017-10-14 23:32:51 +08:00