Dan Williams 355e059499 x86/kvm: Update spectre-v1 mitigation ...

(cherry picked from commit 085331dfc6)

Commit 75f139aaf8 "KVM: x86: Add memory barrier on vmcs field lookup"
added a raw 'asm("lfence");' to prevent a bounds check bypass of
'vmcs_field_to_offset_table'.

The lfence can be avoided in this path by using the array_index_nospec()
helper designed for these types of fixes.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Cc: Andrew Honig <ahonig@google.com>
Cc: kvm@vger.kernel.org
Cc: Jim Mattson <jmattson@google.com>
Link: https://lkml.kernel.org/r/151744959670.6342.3001723920950249067.stgit@dwillia2-desk3.amr.corp.intel.com
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
[jwang: cherry pick to 4.4]
Signed-off-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-02-25 11:03:54 +01:00

..

alpha

alpha: fix reboot on Avanti platform

2018-02-16 20:09:46 +01:00

arc

ARC: uaccess: dont use "l" gcc inline asm constraint modifier

2018-01-10 09:27:11 +01:00

arm

ARM: tegra: select USB_ULPI from EHCI rather than platform

2018-02-25 11:03:51 +01:00

arm64

ARM: tegra: select USB_ULPI from EHCI rather than platform

2018-02-25 11:03:51 +01:00

avr32

avr32: off by one in at32_init_pio()

2016-10-07 15:23:45 +02:00

blackfin

pinctrl: adi2: Fix Kconfig build problem

2017-12-20 10:05:00 +01:00

c6x

c6x/ptrace: Remove useless PTRACE_SETREGSET implementation

2017-03-31 09:49:53 +02:00

cris

cris: Only build flash rescue image if CONFIG_ETRAX_AXISFLASHMAP is selected

2017-01-12 11:22:48 +01:00

frv

mm: larger stack guard gap, between vmas

2017-06-26 07:13:11 +02:00

h8300

h8300/ptrace: Fix incorrect register transfer count

2017-03-31 09:49:53 +02:00

hexagon

hexagon: fix strncpy_from_user() error return

2016-09-24 10:07:44 +02:00

ia64

ia64: copy_from_user() should zero the destination on access_ok() failure

2016-09-24 10:07:46 +02:00

m32r

m32r: fix __get_user()

2016-09-24 10:07:43 +02:00

m68k

m68k: Fix ndelay() macro

2016-12-15 08:49:23 -08:00

metag

metag/uaccess: Check access_ok in strncpy_from_user

2017-05-25 14:30:16 +02:00

microblaze

microblaze: fix copy_from_user()

2016-09-24 10:07:43 +02:00

mips

MIPS: AR7: ensure the port type's FCR value is used

2018-01-23 19:50:18 +01:00

mn10300

mn10300/misalignment: Use SIGSEGV SEGV_MAPERR to report a failed user copy

2018-02-16 20:09:47 +01:00

nios2

nios2: reserve boot memory for device tree

2017-04-12 12:38:34 +02:00

openrisc

signal/openrisc: Fix do_unaligned_access to send the proper signal

2018-02-16 20:09:46 +01:00

parisc

parisc: Fix alignment of pa_tlb_lock in assembly on 32-bit SMP kernel

2018-01-10 09:27:12 +01:00

powerpc

powerpc/perf: Fix oops when grouping different pmu events

2018-02-25 11:03:40 +01:00

s390

s390: fix handling of -1 in set{,fs}[gu]id16 syscalls

2018-02-22 15:44:58 +01:00

score

score: fix copy_from_user() and friends

2016-09-24 10:07:44 +02:00

sh

signal/sh: Ensure si_signo is initialized in do_divide_error

2018-02-16 20:09:46 +01:00

sparc

sparc64/mm: set fields in deferred pages

2017-12-16 10:33:55 +01:00

tile

mm: larger stack guard gap, between vmas

2017-06-26 07:13:11 +02:00

um

um: link vmlinux with -no-pie

2018-01-31 12:06:12 +01:00

unicore32

Merge tag 'pwm/for-4.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm

2015-11-11 09:16:10 -08:00

x86

x86/kvm: Update spectre-v1 mitigation

2018-02-25 11:03:54 +01:00

xtensa

xtensa: fix futex_atomic_cmpxchg_inatomic

2018-02-16 20:09:47 +01:00

.gitignore

…

Kconfig

kexec: split kexec_load syscall from kexec core code

2015-09-10 13:29:01 -07:00