IF YOU WOULD LIKE TO GET AN ACCOUNT, please write an
email to Administrator. User accounts are meant only to access repo
and report issues and/or generate pull requests.
This is a purpose-specific Git hosting for
BaseALT
projects. Thank you for your understanding!
Только зарегистрированные пользователи имеют доступ к сервису!
Для получения аккаунта, обратитесь к администратору.
Currently pmd_mknotpresent will use a zero entry to respresent an
invalidated pmd.
Unfortunately this definition clashes with pmd_none, thus it is
possible for a race condition to occur if zap_pmd_range sees pmd_none
whilst __split_huge_pmd_locked is running too with pmdp_invalidate
just called.
This patch fixes the race condition by modifying pmd_mknotpresent to
create non-zero faulting entries (as is done in other architectures),
removing the ambiguity with pmd_none.
[catalin.marinas@arm.com: using L_PMD_SECT_VALID instead of PMD_TYPE_SECT]
Fixes: 8d9625070073 ("ARM: mm: Transparent huge page support for LPAE systems.")
Cc: <stable@vger.kernel.org> # 3.11+
Reported-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Signed-off-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
In a subsequent patch, pmd_mknotpresent will clear the valid bit of the
pmd entry, resulting in a not-present entry from the hardware's
perspective. Unfortunately, pmd_present simply checks for a non-zero pmd
value and will therefore continue to return true even after a
pmd_mknotpresent operation. Since pmd_mknotpresent is only used for
managing huge entries, this is only an issue for the 3-level case.
This patch fixes the 3-level pmd_present implementation to take into
account the valid bit. For bisectability, the change is made before the
fix to pmd_mknotpresent.
[catalin.marinas@arm.com: comment update regarding pmd_mknotpresent patch]
Fixes: 8d9625070073 ("ARM: mm: Transparent huge page support for LPAE systems.")
Cc: <stable@vger.kernel.org> # 3.11+
Cc: Russell King <linux@armlinux.org.uk>
Cc: Steve Capper <Steve.Capper@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
The value used for Micrel PHY mask is not correct. Use the
MICREL_PHY_ID_MASK definition instead.
Thanks to Jiri Luznicky for proposing the fix at
https://community.freescale.com/thread/387739
Cc: <stable@vger.kernel.org>
Fixes: 709bc0657fe6f9f55 ("ARM: imx6ul: add fec MAC refrence clock and phy fixup init")
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
AM43XX SoCs make use of the omap_l3_noc driver so explicitly select
OMAP_INTERCONNECT in the Kconfig for SOC_AM43XX to ensure it always gets
enabled for AM43XX only builds.
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
DSS's 'pll2_clkctrl' and 'pll2' have wrong addresses in the dra74x.dtsi
file. Video PLL2 has not been used so wrong addresses went unnoticed.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Enable Erratum 430973 similar to commit 5c86c5339c56 ("ARM:
omap2plus_defconfig: Enable ARM erratum 430973 for omap3") - Since
multiple defconfigs can exist from various points of view (multi_v7,
omap2plus etc.. it is always better to enable the erratum from the
Kconfig selection point of view so that downstream kernels dont have
to rediscover this all over again.
Reported-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
We need to reenable the topology extensions CPUID leafs on newer models
too, if BIOS has disabled them, as we rely on them to get proper compute
unit topology.
Make the printk a once thing, while at it.
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
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: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rui Huang <ray.huang@amd.com>
Cc: Sherry Hurwitz <sherry.hurwitz@amd.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-hwmon@vger.kernel.org
Link: http://lkml.kernel.org/r/1464775468-23355-1-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Problem:
We have a boatload of open-coded family-6 model numbers. Half of
them have these model numbers in hex and the other half in
decimal. This makes grepping for them tons of fun, if you were
to try.
Solution:
Consolidate all the magic numbers. Put all the definitions in
one header.
The names here are closely derived from the comments describing
the models from arch/x86/events/intel/core.c. We could easily
make them shorter by doing things like s/SANDYBRIDGE/SNB/, but
they seemed fine even with the longer versions to me.
Do not take any of these names too literally, like "DESKTOP"
or "MOBILE". These are all colloquial names and not precise
descriptions of everywhere a given model will show up.
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Dave Hansen <dave@sr71.net>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jacob Pan <jacob.jun.pan@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Len Brown <lenb@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Rajneesh Bhardwaj <rajneesh.bhardwaj@intel.com>
Cc: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>
Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Vishwanath Somayaji <vishwanath.somayaji@intel.com>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: jacob.jun.pan@intel.com
Cc: linux-acpi@vger.kernel.org
Cc: linux-edac@vger.kernel.org
Cc: linux-mmc@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: platform-driver-x86@vger.kernel.org
Link: http://lkml.kernel.org/r/20160603001927.F2A7D828@viggo.jf.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Commit 66dbd6e61a52 ("arm64: Implement ptep_set_access_flags() for
hardware AF/DBM") ensured that pte flags are updated atomically in the
face of potential concurrent, hardware-assisted updates. However, Alex
reports that:
| This patch breaks swapping for me.
| In the broken case, you'll see either systemd cpu time spike (because
| it's stuck in a page fault loop) or the system hang (because the
| application owning the screen is stuck in a page fault loop).
It turns out that this is because the 'dirty' argument to
ptep_set_access_flags is always 0 for read faults, and so we can't use
it to set PTE_RDONLY. The failing sequence is:
1. We put down a PTE_WRITE | PTE_DIRTY | PTE_AF pte
2. Memory pressure -> pte_mkold(pte) -> clear PTE_AF
3. A read faults due to the missing access flag
4. ptep_set_access_flags is called with dirty = 0, due to the read fault
5. pte is then made PTE_WRITE | PTE_DIRTY | PTE_AF | PTE_RDONLY (!)
6. A write faults, but pte_write is true so we get stuck
The solution is to check the new page table entry (as would be done by
the generic, non-atomic definition of ptep_set_access_flags that just
calls set_pte_at) to establish the dirty state.
Cc: <stable@vger.kernel.org> # 4.3+
Fixes: 66dbd6e61a52 ("arm64: Implement ptep_set_access_flags() for hardware AF/DBM")
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Alexander Graf <agraf@suse.de>
Tested-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
PowerISA 3.0 encodes the segment size in the second half of hash page
table entry. Update hpte_decode() accordingly.
Fixes: 50de596de8be ("powerpc/mm/hash: Add support for Power9 Hash")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In some of the radix TLB flush routines, we use a local to store the
mm->context.id, AKA the PID.
Currently we use an int, but the PID is unsigned long, so large values
of PID will be truncated. In particular MMU_NO_CONTEXT is -1, which
means all our comparisons against that value can never be true.
This means we'll issue TLB flushes when we shouldn't on radix enabled
machines.
Fix it by using an unsigned long for the local. Discovered by Coverity.
Fixes: 1a472c9dba6b ("powerpc/mm/radix: Add tlbflush routines")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: Balbir Singh <bsingharora@gmail.com>
[mpe: Write change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Pull vfs fixes from Al Viro:
"Fixes for crap of assorted ages: EOPENSTALE one is 4.2+, autofs one is
4.6, d_walk - 3.2+.
The atomic_open() and coredump ones are regressions from this window"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
coredump: fix dumping through pipes
fix a regression in atomic_open()
fix d_walk()/non-delayed __d_free() race
autofs braino fix for do_last()
fix EOPENSTALE bug in do_last()
The offset in the core file used to be tracked with ->written field of
the coredump_params structure. The field was retired in favour of
file->f_pos.
However, ->f_pos is not maintained for pipes which leads to breakage.
Restore explicit tracking of the offset in coredump_params. Introduce
->pos field for this purpose since ->written was already reused.
Fixes: a00839395103 ("get rid of coredump_params->written").
Reported-by: Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
Signed-off-by: Mateusz Guzik <mguzik@redhat.com>
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
The recent commit 7cc851039d64 ("powerpc/pseries: Add POWER8NVL support
to ibm,client-architecture-support call") added a new PVR mask & value
to the start of the ibm_architecture_vec[] array.
However it missed the fact that further down in the array, we hard code
the offset of one of the fields, and then at boot use that value to
patch the value in the array. This means every update to the array must
also update the #define, ugh.
This means that on pseries machines we will misreport to firmware the
number of cores we support, by a factor of threads_per_core.
Fix it for now by updating the #define.
Fixes: 7cc851039d64 ("powerpc/pseries: Add POWER8NVL support to ibm,client-architecture-support call")
Cc: stable@vger.kernel.org # v4.0+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
stragglers that didn't get merged by anyone this time around. Better to
do it now than wait for another one to pop up. There's also a minor
maintainers update and a Kconfig fix.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=JewH
-----END PGP SIGNATURE-----
Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"This finally removes the CLK_IS_ROOT flag by picking up the last few
stragglers that didn't get merged by anyone this time around.
Better to do it now than wait for another one to pop up. There's also
a minor maintainers update and a Kconfig fix"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: nxp: Select MFD_SYSCON for creg driver
MAINTAINERS: Add file patterns for clock device tree bindings
clk: Remove CLK_IS_ROOT flag
clk: microchip: Remove CLK_IS_ROOT
powerpc/512x: clk: Remove CLK_IS_ROOT
vexpress/spc: Remove CLK_IS_ROOT
For newer versions of Syslinux, we need ldlinux.c32 in addition to
isolinux.bin to reside on the boot disk, so if the latter is found,
copy it, too, to the isoimage tree.
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: Linux Stable Tree <stable@vger.kernel.org>
Commit bea7eef6949c ("ARM: dts: exynos: Fix DTC unit name warnings in
Peach Pit") fixed the DTC warnings about mismatches between unit names
and reg properties in the Exynos5420 Peach Pit DTS.
But unfortunately it also added a regression on the Peach Pit when
changing the port node names since the OF graph logic expects the port
nodes to be always named 'port'.
The Documentation/devicetree/bindings/graph.txt binding document says
that when there is more than one port, '#address-cells', '#size-cells'
and 'reg' properties should be used to number the port nodes.
Fixes: bea7eef6949c ("ARM: dts: exynos: Fix DTC unit name warnings in Peach Pit")
Reported-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Commit 5c9cbade0629 ("ARM: dts: exynos: Fix DTC unit name warnings in
Exynos5250") fixed all the DTC warnings about mismatchs between unit
names and reg properties in Exynos5250 boards DTS.
But unfortunately it also added a regression on the Exynos5250 Snow
Chromebook when changing the port node names since the OF graph logic
expects the port nodes to be always named 'port'.
The Documentation/devicetree/bindings/graph.txt binding document says
that when there is more than one port, '#address-cells', '#size-cells'
and 'reg' properties should be used to number the port nodes.
Fixes: 5c9cbade0629 ("ARM: dts: exynos: Fix DTC unit name warnings in Exynos5250")
Reported-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
In commit 8445a87f7092 "powerpc/iommu: Remove the dependency on EEH
struct in DDW mechanism", the PE address was replaced with the PCI
config address in order to remove dependency on EEH. According to PAPR
spec, firmware (pHyp or QEMU) should accept "xxBBSSxx" format PCI config
address, not "xxxxBBSS" provided by the patch. Note that "BB" is PCI bus
number and "SS" is the combination of slot and function number.
This fixes the PCI address passed to DDW RTAS calls.
Fixes: 8445a87f7092 ("powerpc/iommu: Remove the dependency on EEH struct in DDW mechanism")
Cc: stable@vger.kernel.org # v3.4+
Reported-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Tested-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
gcc-6 correctly warns about a out of bounds access
arch/powerpc/kernel/ptrace.c:407:24: warning: index 32 denotes an offset greater than size of 'u64[32][1] {aka long long unsigned int[32][1]}' [-Warray-bounds]
offsetof(struct thread_fp_state, fpr[32][0]));
^
check the end of array instead of beginning of next element to fix this
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Segher Boessenkool <segher@kernel.crashing.org>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
One of the debian buildd servers had this crash in the syslog without
any other information:
Unaligned handler failed, ret = -2
clock_adjtime (pid 22578): Unaligned data reference (code 28)
CPU: 1 PID: 22578 Comm: clock_adjtime Tainted: G E 4.5.0-2-parisc64-smp #1 Debian 4.5.4-1
task: 000000007d9960f8 ti: 00000001bde7c000 task.ti: 00000001bde7c000
YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111100000001111 Tainted: G E
r00-03 000000ff0804f80f 00000001bde7c2b0 00000000402d2be8 00000001bde7c2b0
r04-07 00000000409e1fd0 00000000fa6f7fff 00000001bde7c148 00000000fa6f7fff
r08-11 0000000000000000 00000000ffffffff 00000000fac9bb7b 000000000002b4d4
r12-15 000000000015241c 000000000015242c 000000000000002d 00000000fac9bb7b
r16-19 0000000000028800 0000000000000001 0000000000000070 00000001bde7c218
r20-23 0000000000000000 00000001bde7c210 0000000000000002 0000000000000000
r24-27 0000000000000000 0000000000000000 00000001bde7c148 00000000409e1fd0
r28-31 0000000000000001 00000001bde7c320 00000001bde7c350 00000001bde7c218
sr00-03 0000000001200000 0000000001200000 0000000000000000 0000000001200000
sr04-07 0000000000000000 0000000000000000 0000000000000000 0000000000000000
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402d2e84 00000000402d2e88
IIR: 0ca0d089 ISR: 0000000001200000 IOR: 00000000fa6f7fff
CPU: 1 CR30: 00000001bde7c000 CR31: ffffffffffffffff
ORIG_R28: 00000002369fe628
IAOQ[0]: compat_get_timex+0x2dc/0x3c0
IAOQ[1]: compat_get_timex+0x2e0/0x3c0
RP(r2): compat_get_timex+0x40/0x3c0
Backtrace:
[<00000000402d4608>] compat_SyS_clock_adjtime+0x40/0xc0
[<0000000040205024>] syscall_exit+0x0/0x14
This means the userspace program clock_adjtime called the clock_adjtime()
syscall and then crashed inside the compat_get_timex() function.
Syscalls should never crash programs, but instead return EFAULT.
The IIR register contains the executed instruction, which disassebles
into "ldw 0(sr3,r5),r9".
This load-word instruction is part of __get_user() which tried to read the word
at %r5/IOR (0xfa6f7fff). This means the unaligned handler jumped in. The
unaligned handler is able to emulate all ldw instructions, but it fails if it
fails to read the source e.g. because of page fault.
The following program reproduces the problem:
#define _GNU_SOURCE
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/mman.h>
int main(void) {
/* allocate 8k */
char *ptr = mmap(NULL, 2*4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
/* free second half (upper 4k) and make it invalid. */
munmap(ptr+4096, 4096);
/* syscall where first int is unaligned and clobbers into invalid memory region */
/* syscall should return EFAULT */
return syscall(__NR_clock_adjtime, 0, ptr+4095);
}
To fix this issue we simply need to check if the faulting instruction address
is in the exception fixup table when the unaligned handler failed. If it
is, call the fixup routine instead of crashing.
While looking at the unaligned handler I found another issue as well: The
target register should not be modified if the handler was unsuccessful.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
This patch fixes backtrace on PA-RISC
There were several problems:
1) The code that decodes instructions handles instructions that subtract
from the stack pointer incorrectly. If the instruction subtracts the
number X from the stack pointer the code increases the frame size by
(0x100000000-X). This results in invalid accesses to memory and
recursive page faults.
2) Because gcc reorders blocks, handling instructions that subtract from
the frame pointer is incorrect. For example, this function
int f(int a)
{
if (__builtin_expect(a, 1))
return a;
g();
return a;
}
is compiled in such a way, that the code that decreases the stack
pointer for the first "return a" is placed before the code for "g" call.
If we recognize this decrement, we mistakenly believe that the frame
size for the "g" call is zero.
To fix problems 1) and 2), the patch doesn't recognize instructions that
decrease the stack pointer at all. To further safeguard the unwind code
against nonsense values, we don't allow frame size larger than
Total_frame_size.
3) The backtrace is not locked. If stack dump races with module unload,
invalid table can be accessed.
This patch adds a spinlock when processing module tables.
Note, that for correct backtrace, you need recent binutils.
Binutils 2.18 from Debian 5 produce garbage unwind tables.
Binutils 2.21 work better (it sometimes forgets function frames, but at
least it doesn't generate garbage).
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Pull irq fixes from Thomas Gleixner:
- a few simple fixes for fallout from the recent gic-v3 changes
- a workaround for a Cavium thunderX erratum
- a bugfix for the pic32 irqchip to make external interrupts work proper
- a missing return value in the generic IPI management code
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/irq-pic32-evic: Fix bug with external interrupts.
irqchip/gicv3-its: numa: Enable workaround for Cavium thunderx erratum 23144
irqchip/gic-v3: Fix quiescence check in gic_enable_redist
irqchip/gic-v3: Fix copy+paste mistakes in defines
irqchip/gic-v3: Fix ICC_SGI1R_EL1.INTID decoding mask
genirq: Fix missing return value in irq_destroy_ipi()
Pull ARM fix from Russell King:
"Just one fix to the ptrace code, spotted by Simon Marchi, where if a
thread migrates to a different CPU and the VFP registers are changed
through ptrace, the application doesn't see the updated VFP registers"
* 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: fix PTRACE_SETVFPREGS on SMP systems
- Revert a previous revert and get hugetlb going with contiguous hints
- Wire up missing compat syscalls
- Enable CONFIG_SET_MODULE_RONX by default
- Add missing line to our compat /proc/cpuinfo output
- Clarify levels in our page table dumps
- Fix booting with RANDOMIZE_TEXT_OFFSET enabled
- Misc fixes to the ARM CPU PMU driver (refcounting, probe failure)
- Remove some dead code and update a comment
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABCgAGBQJXUZzdAAoJELescNyEwWM0Fm4H/215TJBXcohdIpTYX/Nr3+Bh
5jOqMgEWKe6ipmXCnzWpZ1F1GHoxLxndSWhJbi1Gwpdc+EYdXWxT5Z/IsQMKZXOb
n81RzJbit6hXlebZ99YbEjfokfpMATno/9pD8sr1F2Xg/LsrD00O/0aPk9Fp38vX
VRK2TlaVdBQbF80rMI6fUEEVksbJBqS+jBlqwkRri9JPusP+F5F4Qg8f4VqXDSef
ZDEBzaI1BjrIQhDGSf0baXQ9EvuyotT2VR1NKAbYzdK8JoLTYiacIDviU2TCsuYZ
ujB3MTOUytxAJbFhC2KBiDJfukSNY8vg+fLFg7rM3qUj6TMw6ESe1goYVScljHY=
=cAlD
-----END PGP SIGNATURE-----
Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"The main thing here is reviving hugetlb support using contiguous ptes,
which we ended up reverting at the last minute in 4.5 pending a fix
which went into the core mm/ code during the recent merge window.
- Revert a previous revert and get hugetlb going with contiguous hints
- Wire up missing compat syscalls
- Enable CONFIG_SET_MODULE_RONX by default
- Add missing line to our compat /proc/cpuinfo output
- Clarify levels in our page table dumps
- Fix booting with RANDOMIZE_TEXT_OFFSET enabled
- Misc fixes to the ARM CPU PMU driver (refcounting, probe failure)
- Remove some dead code and update a comment"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: fix alignment when RANDOMIZE_TEXT_OFFSET is enabled
arm64: move {PAGE,CONT}_SHIFT into Kconfig
arm64: mm: dump: log span level
arm64: update stale PAGE_OFFSET comment
drivers/perf: arm_pmu: Avoid leaking pmu->irq_affinity on error
drivers/perf: arm_pmu: Defer the setting of __oprofile_cpu_pmu
drivers/perf: arm_pmu: Fix reference count of a device_node in of_pmu_irq_cfg
arm64: report CPU number in bad_mode
arm64: unistd32.h: wire up missing syscalls for compat tasks
arm64: Provide "model name" in /proc/cpuinfo for PER_LINUX32 tasks
arm64: enable CONFIG_SET_MODULE_RONX by default
arm64: Remove orphaned __addr_ok() definition
Revert "arm64: hugetlb: partial revert of 66b3923a1a0f"
- Handle RTAS delay requests in configure_bridge from Russell Currey
- Refactor the configure_bridge RTAS tokens from Russell Currey
- Fix definition of SIAR and SDAR registers from Thomas Huth
- Use privileged SPR number for MMCR2 from Thomas Huth
- Update LPCR only if it is powernv from Aneesh Kumar K.V
- Fix the reference bit update when handling hash fault from Aneesh Kumar K.V
- Add missing tlb flush from Aneesh Kumar K.V
- Add POWER8NVL support to ibm,client-architecture-support call from Thomas Huth
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=OkUs
-----END PGP SIGNATURE-----
Merge tag 'powerpc-4.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Handle RTAS delay requests in configure_bridge from Russell Currey
- Refactor the configure_bridge RTAS tokens from Russell Currey
- Fix definition of SIAR and SDAR registers from Thomas Huth
- Use privileged SPR number for MMCR2 from Thomas Huth
- Update LPCR only if it is powernv from Aneesh Kumar K.V
- Fix the reference bit update when handling hash fault from Aneesh
Kumar K.V
- Add missing tlb flush from Aneesh Kumar K.V
- Add POWER8NVL support to ibm,client-architecture-support call from
Thomas Huth
* tag 'powerpc-4.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/pseries: Add POWER8NVL support to ibm,client-architecture-support call
powerpc/mm/radix: Add missing tlb flush
powerpc/mm/hash: Fix the reference bit update when handling hash fault
powerpc/mm/radix: Update LPCR only if it is powernv
powerpc: Use privileged SPR number for MMCR2
powerpc: Fix definition of SIAR and SDAR registers
powerpc/pseries/eeh: Refactor the configure_bridge RTAS tokens
powerpc/pseries/eeh: Handle RTAS delay requests in configure_bridge
This is the same issue fixed in commit dcf5341f0150 ("ARM: dts:
sun8i-q8-common: Do not set constraints on dc1sw regulator").
Commit message copied:
dc1sw is an on/off only regulator and as such it cannot have constraints.
This is a limitation of the kernel regulator implementation which resolves
supplies on the first regulator_get(), which is done after applying
constraints, and applying the constrains will fail because it calls
_regulator_get_voltage() and _regulator_do_set_voltage() both of which
will fail on a switch regulator when there is no supply (yet).
This causes registering of all axp22x regulators to fail with the
following errors:
[ 1.395249] vcc-lcd: failed to get the current voltage(-22)
[ 1.405131] axp20x-regulator axp20x-regulator: Failed to register dc1sw
[ 1.412436] axp20x-regulator: probe of axp20x-regulator failed with error -22
This commit removes the constrains on dc1sw / vcc-lcd fixing this problem.
Note that dcdc1 itself is contrained to the exact same values, so this
does not change anything.
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Cc: <stable@vger.kernel.org> # 4.6
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
This is the same issue fixed in commit dcf5341f0150 ("ARM: dts:
sun8i-q8-common: Do not set constraints on dc1sw regulator").
Commit message copied:
dc1sw is an on/off only regulator and as such it cannot have constraints.
This is a limitation of the kernel regulator implementation which resolves
supplies on the first regulator_get(), which is done after applying
constraints, and applying the constrains will fail because it calls
_regulator_get_voltage() and _regulator_do_set_voltage() both of which
will fail on a switch regulator when there is no supply (yet).
This causes registering of all axp22x regulators to fail with the
following errors:
[ 1.395249] vcc-lcd: failed to get the current voltage(-22)
[ 1.405131] axp20x-regulator axp20x-regulator: Failed to register dc1sw
[ 1.412436] axp20x-regulator: probe of axp20x-regulator failed with error -22
This commit removes the constrains on dc1sw / vcc-lcd fixing this problem.
Note that dcdc1 itself is contrained to the exact same values, so this
does not change anything.
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Cc: <stable@vger.kernel.org> # 4.6
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
with patches in Linux next:
- Fix omap5 and am57xx-idk input voltages to fix micro-sd
probing at least for some omap5-uevm configurations
- Fix unhandled fault for igepv5 audio
- Fix UART wakeirqs for omap5 by removing WAKUP_EN flags,
those are managed by the wakeirq and can currently confuse
the wakeirqs as there is no handler necessarily registered
- Fix LDO7 source for igepv5
Also included are few minor changes not strictly fixes
are good to have merged:
- Fix HP T410 boot time warnings for eMMC and disable the
unused MMC interfaces while at it
- Add dra7 gpmc dma channel
- Add igep00x0 SD card detect and write protect GPIOs
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=vMZg
-----END PGP SIGNATURE-----
Merge tag 'omap-for-v4.7-dts-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
DTS fixes for omaps for v4.7 merge window for issues noted
with patches in Linux next:
- Fix omap5 and am57xx-idk input voltages to fix micro-sd
probing at least for some omap5-uevm configurations
- Fix unhandled fault for igepv5 audio
- Fix UART wakeirqs for omap5 by removing WAKUP_EN flags,
those are managed by the wakeirq and can currently confuse
the wakeirqs as there is no handler necessarily registered
- Fix LDO7 source for igepv5
Also included are few minor changes not strictly fixes
are good to have merged:
- Fix HP T410 boot time warnings for eMMC and disable the
unused MMC interfaces while at it
- Add dra7 gpmc dma channel
- Add igep00x0 SD card detect and write protect GPIOs
* tag 'omap-for-v4.7-dts-fixes1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: igep0020: Add SD card write-protect pin.
ARM: dts: igep00x0: Add SD card-detect.
ARM: dts: am57xx-idk-common: Fix input supply names
ARM: dts: dra7: Add gpmc dma channel
ARM: dts: disable mmc by default and enable when needed for dm814x
ARM: dts: Add non-removable to hsmmc on hp-t410
ARM: dts: Fix ldo7 source for HDMI on igepv5
ARM: dts: Fix uart wakeirq on omap5 by removing WAKEUP_EN for omaps
ARM: dts: Fix igepv5 audiopwon-gpio
ARM: dts: omap5-board-common: Describe the voltage supply mapping accurately
Signed-off-by: Olof Johansson <olof@lixom.net>
ARM errata for am437x, and the other to add ARM errtum
workaround for dra7.
AFAIK these both can wait for v4.7, we can then request them
for stable kernels as needed.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=0ahk
-----END PGP SIGNATURE-----
Merge tag 'omap-for-v4.7/fixes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Two fixes for omaps for v4.7 merge window, one to enable
ARM errata for am437x, and the other to add ARM errtum
workaround for dra7.
AFAIK these both can wait for v4.7, we can then request them
for stable kernels as needed.
* tag 'omap-for-v4.7/fixes-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: AM43XX: Enable fixes for Cortex-A9 errata
ARM: OMAP5 / DRA7: Introduce workaround for 801819
Signed-off-by: Olof Johansson <olof@lixom.net>
commit 27dd9af6bc000ab21fd ("ARM: dts: sunxi: Add a olinuxino-lime2-emmc")
added the new emmc equipped lime2 but forgot its Makefile.
This patch adds an entry to the Makefile.
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
1. Fix samsung-keypad build error if INPUT is selected as module.
The error though depends on some uncommon build settings so it
is not as easy to trigger.
2. Get rid of 'samsung_device_dma_mask' defined but not used warning.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=LR9t
-----END PGP SIGNATURE-----
Merge tag 'samsung-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes
Two fixes for v4.7 cycle for build issues:
1. Fix samsung-keypad build error if INPUT is selected as module.
The error though depends on some uncommon build settings so it
is not as easy to trigger.
2. Get rid of 'samsung_device_dma_mask' defined but not used warning.
* tag 'samsung-fixes-4.7' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux:
ARM: exynos: don't select keyboard driver
ARM: samsung: improve static dma_mask definition
Signed-off-by: Olof Johansson <olof@lixom.net>
Tree-wide replacement was done by commit 2ef7d5f342c1 (ARM, ARM64:
dts: drop "arm,amba-bus" in favor of "simple-bus"), but we have some
new users of "arm,amba-bus" at Linux 4.7-rc1. Eliminate them now.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Chanho Min <chanho.min@lge.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
With ARM64_64K_PAGES and RANDOMIZE_TEXT_OFFSET enabled, we hit the
following issue on the boot:
kernel BUG at arch/arm64/mm/mmu.c:480!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 4.6.0 #310
Hardware name: ARM Juno development board (r2) (DT)
task: ffff000008d58a80 ti: ffff000008d30000 task.ti: ffff000008d30000
PC is at map_kernel_segment+0x44/0xb0
LR is at paging_init+0x84/0x5b0
pc : [<ffff000008c450b4>] lr : [<ffff000008c451a4>] pstate: 600002c5
Call trace:
[<ffff000008c450b4>] map_kernel_segment+0x44/0xb0
[<ffff000008c451a4>] paging_init+0x84/0x5b0
[<ffff000008c42728>] setup_arch+0x198/0x534
[<ffff000008c40848>] start_kernel+0x70/0x388
[<ffff000008c401bc>] __primary_switched+0x30/0x74
Commit 7eb90f2ff7e3 ("arm64: cover the .head.text section in the .text
segment mapping") removed the alignment between the .head.text and .text
sections, and used the _text rather than the _stext interval for mapping
the .text segment.
Prior to this commit _stext was always section aligned and didn't cause
any issue even when RANDOMIZE_TEXT_OFFSET was enabled. Since that
alignment has been removed and _text is used to map the .text segment,
we need ensure _text is always page aligned when RANDOMIZE_TEXT_OFFSET
is enabled.
This patch adds logic to TEXT_OFFSET fuzzing to ensure that the offset
is always aligned to the kernel page size. To ensure this, we rely on
the PAGE_SHIFT being available via Kconfig.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reported-by: Sudeep Holla <sudeep.holla@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Fixes: 7eb90f2ff7e3 ("arm64: cover the .head.text section in the .text segment mapping")
Signed-off-by: Will Deacon <will.deacon@arm.com>
In some cases (e.g. the awk for CONFIG_RANDOMIZE_TEXT_OFFSET) we would
like to make use of PAGE_SHIFT outside of code that can include the
usual header files.
Add a new CONFIG_ARM64_PAGE_SHIFT for this, likewise with
ARM64_CONT_SHIFT for consistency.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
The page table dump code logs spans of entries at the same level
(pgd/pud/pmd/pte) which have the same attributes. While we log the
(decoded) attributes, we don't log the level, which leaves the output
ambiguous and/or confusing in some cases.
For example:
0xffff800800000000-0xffff800980000000 6G RW NX SHD AF BLK UXN MEM/NORMAL
If using 4K pages, this may describe a span of 6 1G block entries at the
PGD/PUD level, or 3072 2M block entries at the PMD level.
This patch adds the page table level to each output line, removing this
ambiguity. For the example above, this will produce:
0xffffffc800000000-0xffffffc980000000 6G PUD RW NX SHD AF BLK UXN MEM/NORMAL
When 3 level tables are in use, and we use the asm-generic/nopud.h
definitions, the dump code treats each entry in the PGD as a 1 element
table at the PUD level, and logs spans as being PUDs, which can be
confusing. To counteract this, the "PUD" mnemonic is replaced with "PGD"
when CONFIG_PGTABLE_LEVELS <= 3. Likewise for "PMD" when
CONFIG_PGTABLE_LEVELS <= 2.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Huang Shijie <shijie.huang@arm.com>
Cc: Laura Abbott <labbott@fedoraproject.org>
Cc: Steve Capper <steve.capper@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Commit ab893fb9f1b17f02 ("arm64: introduce KIMAGE_VADDR as the virtual
base of the kernel region") logically split KIMAGE_VADDR from
PAGE_OFFSET, and since commit f9040773b7bbbd9e ("arm64: move kernel
image to base of vmalloc area") the two have been distinct values.
Unfortunately, neither commit updated the comment above these
definitions, which now erroneously states that PAGE_OFFSET is the start
of the kernel image rather than the start of the linear mapping.
This patch fixes said comment, and introduces an explanation of
KIMAGE_VADDR.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
If we take an exception we don't expect (e.g. SError), we report this in
the bad_mode handler with pr_crit. Depending on the configured log
level, we may or may not log additional information in functions called
subsequently. Notably, the messages in dump_stack (including the CPU
number) are printed with KERN_DEFAULT and may not appear.
Some exceptions have an IMPLEMENTATION DEFINED ESR_ELx.ISS encoding, and
knowing the CPU number is crucial to correctly decode them. To ensure
that this is always possible, we should log the CPU number along with
the ESR_ELx value, so we are not reliant on subsequent logs or
additional printk configuration options.
This patch logs the CPU number in bad_mode such that it is possible for
a developer to decode these exceptions, provided access to sufficient
documentation.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reported-by: Al Grant <Al.Grant@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Martin <dave.martin@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
There was a report that on certain Broadwell-EP systems writing any bit of
the SBOX PMU initialization MSR would #GP at boot. This did not happen
on all systems. My test systems booted fine.
Considering both DE and EP may have such issues, this patch removes SBOX
support for all Broadwell platforms for now.
Reported-and-tested-by: Mark van Dijk <mark@voidzero.net>
Signed-off-by: Kan Liang <kan.liang@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Link: http://lkml.kernel.org/r/1464347540-5763-1-git-send-email-kan.liang@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
- two fixes for 4.6 vgic [Christoffer]
(cc stable)
- six fixes for 4.7 vgic [Marc]
x86:
- six fixes from syzkaller reports [Paolo]
(two of them cc stable)
- allow OS X to boot [Dmitry]
- don't trust compilers [Nadav]
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABCAAGBQJXUI6+AAoJEED/6hsPKofof70H/iL+tri1Mu9q+8+EtANPp9i1
XWjjAQCGszq27H/A1Io+igszW/ghhp0OoVYSB8wSUBubTSjjyba90dWe41UpBywt
r2W41xbGUBRdC6aK5rZ0+Zw2MIv5+ubSsbDKqfY8IsWQzWln+NHo+q5UU8+NfdZ7
Nu7+lRhXJfJWy31k/FeDp3FeZXPZk9b9iZBafmnNcg/i1JMjrrVK8nSBXOSUvZ22
Dy/b3ln+8emv4lvOX0jfostQH0HkfulpBmJouZ5TadoegBtQEDEKpkglxSyUHAcT
TmMhRwRyx4K6i5Bp3zAJ0LtjEks9/ayHVmerMJ+LH1MBaJqNmvxUzSPXvKGA8JE=
=PCWN
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- two fixes for 4.6 vgic [Christoffer] (cc stable)
- six fixes for 4.7 vgic [Marc]
x86:
- six fixes from syzkaller reports [Paolo] (two of them cc stable)
- allow OS X to boot [Dmitry]
- don't trust compilers [Nadav]"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: fix OOPS after invalid KVM_SET_DEBUGREGS
KVM: x86: avoid vmalloc(0) in the KVM_SET_CPUID
KVM: irqfd: fix NULL pointer dereference in kvm_irq_map_gsi
KVM: fail KVM_SET_VCPU_EVENTS with invalid exception number
KVM: x86: avoid vmalloc(0) in the KVM_SET_CPUID
kvm: x86: avoid warning on repeated KVM_SET_TSS_ADDR
KVM: Handle MSR_IA32_PERF_CTL
KVM: x86: avoid write-tearing of TDP
KVM: arm/arm64: vgic-new: Removel harmful BUG_ON
arm64: KVM: vgic-v3: Relax synchronization when SRE==1
arm64: KVM: vgic-v3: Prevent the guest from messing with ICC_SRE_EL1
arm64: KVM: Make ICC_SRE_EL1 access return the configured SRE value
KVM: arm/arm64: vgic-v3: Always resample level interrupts
KVM: arm/arm64: vgic-v2: Always resample level interrupts
KVM: arm/arm64: vgic-v3: Clear all dirty LRs
KVM: arm/arm64: vgic-v2: Clear all dirty LRs
The erratum fixes the hang of ITS SYNC command by avoiding inter node
io and collections/cpu mapping on thunderx dual-socket platform.
This fix is only applicable for Cavium's ThunderX dual-socket platform.
Reviewed-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Ganapatrao Kulkarni <gkulkarni@caviumnetworks.com>
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Intel CPUs having Turbo Boost feature implement an MSR to provide a
control interface via rdmsr/wrmsr instructions. One could detect the
presence of this feature by issuing one of these instructions and
handling the #GP exception which is generated in case the referenced MSR
is not implemented by the CPU.
KVM's vCPU model behaves exactly as a real CPU in this case by injecting
a fault when MSR_IA32_PERF_CTL is called (which KVM does not support).
However, some operating systems use this register during an early boot
stage in which their kernel is not capable of handling #GP correctly,
causing #DP and finally a triple fault effectively resetting the vCPU.
This patch implements a dummy handler for MSR_IA32_PERF_CTL to avoid the
crashes.
Signed-off-by: Dmitry Bilunov <kmeaw@yandex-team.ru>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
