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Hedi Berriche 7212e37cbd x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls 
commit f331e766c4be33f4338574f3c9f7f77e98ab4571 upstream.

Calls into UV firmware must be protected against concurrency, expose the
efi_runtime_lock to the UV platform, and use it to serialise UV BIOS
calls.

Signed-off-by: Hedi Berriche <hedi.berriche@hpe.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Russ Anderson <rja@hpe.com>
Reviewed-by: Dimitri Sivanich <sivanich@hpe.com>
Reviewed-by: Mike Travis <mike.travis@hpe.com>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: Bhupesh Sharma <bhsharma@redhat.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-efi <linux-efi@vger.kernel.org>
Cc: platform-driver-x86@vger.kernel.org
Cc: stable@vger.kernel.org # v4.9+
Cc: Steve Wahl <steve.wahl@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20190213193413.25560-5-hedi.berriche@hpe.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-02-20 10:13:23 +01:00
..
alpha
alpha: Fix Eiger NR_IRQS to 128
2019-02-20 10:13:22 +01:00
arc
ARC: perf: map generic branches to correct hardware condition
2019-02-06 19:43:03 +01:00
arm
gpio: pl061: handle failed allocations
2019-02-20 10:13:21 +01:00
arm64
arm64: ftrace: don't adjust the LR value
2019-02-20 10:13:07 +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
mm: replace get_user_pages() write/force parameters with gup_flags
2018-12-17 21:55:16 +01:00
frv
futex: Remove duplicated code and fix undefined behaviour
2018-05-26 08:48:50 +02:00
h8300
h8300/ptrace: Fix incorrect register transfer count
2017-03-31 09:49:53 +02:00
hexagon
hexagon: modify ffs() and fls() to return int
2018-10-10 08:52:12 +02:00
ia64
mm: replace get_user_pages() write/force parameters with gup_flags
2018-12-17 21:55:16 +01:00
m32r
m32r: fix __get_user()
2016-09-24 10:07:43 +02:00
m68k
m68k: fix "bad page state" oops on ColdFire boot
2018-08-24 13:26:57 +02:00
metag
metag/uaccess: Check access_ok in strncpy_from_user
2017-05-25 14:30:16 +02:00
microblaze
microblaze: Fix simpleImage format generation
2018-08-06 16:24:39 +02:00
mips
MIPS: VDSO: Include $(ccflags-vdso) in o32,n32 .lds builds
2019-02-20 10:13:19 +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
kthread: fix boot hang (regression) on MIPS/OpenRISC
2018-09-19 22:48:55 +02:00
parisc
parisc: Fix map_pages() to not overwrite existing pte entries
2018-11-21 09:27:30 +01:00
powerpc
powerpc/uaccess: fix warning/error with access_ok()
2019-02-20 10:13:10 +01:00
s390
s390/smp: Fix calling smp_call_ipl_cpu() from ipl CPU
2019-02-06 19:43:05 +01:00
score
score: fix copy_from_user() and friends
2016-09-24 10:07:44 +02:00
sh
mm: replace get_user_pages_unlocked() write/force parameters with gup_flags
2018-12-17 21:55:16 +01:00
sparc
mm: replace get_user_pages_unlocked() write/force parameters with gup_flags
2018-12-17 21:55:16 +01:00
tile
futex: Remove duplicated code and fix undefined behaviour
2018-05-26 08:48:50 +02:00
um
um: Avoid marking pages with "changed protection"
2019-02-20 10:13:13 +01:00
unicore32
pwm: Changes for v4.4-rc1
2015-11-11 09:16:10 -08:00
x86
x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls
2019-02-20 10:13:23 +01:00
xtensa
xtensa: fix coprocessor context offset definitions
2018-12-13 09:21:26 +01:00
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