Reported by syzkaller:
The kvm-intel.unrestricted_guest=0
WARNING: CPU: 5 PID: 1014 at /home/kernel/data/kvm/arch/x86/kvm//x86.c:7227 kvm_arch_vcpu_ioctl_run+0x38b/0x1be0 [kvm]
CPU: 5 PID: 1014 Comm: warn_test Tainted: G W OE 4.13.0-rc3+ #8
RIP: 0010:kvm_arch_vcpu_ioctl_run+0x38b/0x1be0 [kvm]
Call Trace:
? put_pid+0x3a/0x50
? rcu_read_lock_sched_held+0x79/0x80
? kmem_cache_free+0x2f2/0x350
kvm_vcpu_ioctl+0x340/0x700 [kvm]
? kvm_vcpu_ioctl+0x340/0x700 [kvm]
? __fget+0xfc/0x210
do_vfs_ioctl+0xa4/0x6a0
? __fget+0x11d/0x210
SyS_ioctl+0x79/0x90
entry_SYSCALL_64_fastpath+0x23/0xc2
? __this_cpu_preempt_check+0x13/0x20
The syszkaller folks reported a residual mmio emulation request to userspace
due to vm86 fails to emulate inject real mode interrupt(fails to read CS) and
incurs a triple fault. The vCPU returns to userspace with vcpu->mmio_needed == true
and KVM_EXIT_SHUTDOWN exit reason. However, the syszkaller testcase constructs
several threads to launch the same vCPU, the thread which lauch this vCPU after
the thread whichs get the vcpu->mmio_needed == true and KVM_EXIT_SHUTDOWN will
trigger the warning.
#define _GNU_SOURCE
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/wait.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <unistd.h>
#include <linux/kvm.h>
#include <stdio.h>
int kvmcpu;
struct kvm_run *run;
void* thr(void* arg)
{
int res;
res = ioctl(kvmcpu, KVM_RUN, 0);
printf("ret1=%d exit_reason=%d suberror=%d\n",
res, run->exit_reason, run->internal.suberror);
return 0;
}
void test()
{
int i, kvm, kvmvm;
pthread_t th[4];
kvm = open("/dev/kvm", O_RDWR);
kvmvm = ioctl(kvm, KVM_CREATE_VM, 0);
kvmcpu = ioctl(kvmvm, KVM_CREATE_VCPU, 0);
run = (struct kvm_run*)mmap(0, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, kvmcpu, 0);
srand(getpid());
for (i = 0; i < 4; i++) {
pthread_create(&th[i], 0, thr, 0);
usleep(rand() % 10000);
}
for (i = 0; i < 4; i++)
pthread_join(th[i], 0);
}
int main()
{
for (;;) {
int pid = fork();
if (pid < 0)
exit(1);
if (pid == 0) {
test();
exit(0);
}
int status;
while (waitpid(pid, &status, __WALL) != pid) {}
}
return 0;
}
This patch fixes it by resetting the vcpu->mmio_needed once we receive
the triple fault to avoid the residue.
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Tested-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This implements the kvm_arch_vcpu_in_kernel() for ARM, and adjusts
the calls to kvm_vcpu_on_spin().
Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This implements kvm_arch_vcpu_in_kernel() for s390. DIAG is a privileged
operation, so it cannot be called from problem state (user mode).
Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
get_cpl requires vcpu_load, so we must cache the result (whether the
vcpu was preempted when its cpl=0) in kvm_vcpu_arch.
Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
If a vcpu exits due to request a user mode spinlock, then
the spinlock-holder may be preempted in user mode or kernel mode.
(Note that not all architectures trap spin loops in user mode,
only AMD x86 and ARM/ARM64 currently do).
But if a vcpu exits in kernel mode, then the holder must be
preempted in kernel mode, so we should choose a vcpu in kernel mode
as a more likely candidate for the lock holder.
This introduces kvm_arch_vcpu_in_kernel() to decide whether the
vcpu is in kernel-mode when it's preempted. kvm_vcpu_on_spin's
new argument says the same of the spinning VCPU.
Signed-off-by: Longpeng(Mike) <longpeng2@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Add guest_cpuid_clear() and use it instead of kvm_find_cpuid_entry().
Also replace some uses of kvm_find_cpuid_entry() with guest_cpuid_has().
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch turns guest_cpuid_has_XYZ(cpuid) into guest_cpuid_has(cpuid,
X86_FEATURE_XYZ), which gets rid of many very similar helpers.
When seeing a X86_FEATURE_*, we can know which cpuid it belongs to, but
this information isn't in common code, so we recreate it for KVM.
Add some BUILD_BUG_ONs to make sure that it runs nicely.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
bit(X86_FEATURE_NRIPS) is 3 since 2ccd71f1b2 ("x86/cpufeature: Move
some of the scattered feature bits to x86_capability"), so we can
simplify the code.
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
When L2 uses vmfunc, L0 utilizes the associated vmexit to
emulate a switching of the ept pointer by reloading the
guest MMU.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Bandan Das <bsd@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Expose VMFUNC in MSRs and VMCS fields. No actual VMFUNCs are enabled.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Bandan Das <bsd@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Enable VMFUNC in the secondary execution controls. This simplifies the
changes necessary to expose it to nested hypervisors. VMFUNCs still
cause #UD when invoked.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Bandan Das <bsd@redhat.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Let's also just use the underlying functions directly here.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
[Rebased on top of 9f744c5974 ("KVM: nVMX: do not pin the VMCS12")]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
nested_get_page() just sounds confusing. All we want is a page from G1.
This is even unrelated to nested.
Let's introduce kvm_vcpu_gpa_to_page() so we don't get too lengthy
lines.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
[Squash pasto fix from Wanpeng Li. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Expose the "Enable INVPCID" secondary execution control to the guest
and properly reflect the exit reason.
In addition, before this patch the guest was always running with
INVPCID enabled, causing pcid.flat's "Test on INVPCID when disabled"
test to fail.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It has been experimentally confirmed that supporting these two MSRs is one
of the necessary conditions for nested Hyper-V to use the TSC page. Modern
Windows guests are noticeably slower when they fall back to reading
timestamps from the HV_X64_MSR_TIME_REF_COUNT MSR instead of using the TSC
page.
The newly supported MSRs are advertised with the AccessFrequencyRegs
partition privilege flag and CPUID.40000003H:EDX[8] "Support for
determining timer frequencies is available" (both outside of the scope of
this KVM patch).
Reviewed-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Ladi Prosek <lprosek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fix loop preventing some platforms from waking up via the power
button in s2idle.
intel-vbtn:
- match power button on press rather than release
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Merge tag 'platform-drivers-x86-v4.13-4' of git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fix from Darren Hart:
"Fix loop preventing some platforms from waking up via the power button
in s2idle:
- intel-vbtn: match power button on press rather than release"
* tag 'platform-drivers-x86-v4.13-4' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: intel-vbtn: match power button on press rather than release
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"A large number of ext4 bug fixes and cleanups for v4.13"
* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: fix copy paste error in ext4_swap_extents()
ext4: fix overflow caused by missing cast in ext4_resize_fs()
ext4, project: expand inode extra size if possible
ext4: cleanup ext4_expand_extra_isize_ea()
ext4: restructure ext4_expand_extra_isize
ext4: fix forgetten xattr lock protection in ext4_expand_extra_isize
ext4: make xattr inode reads faster
ext4: inplace xattr block update fails to deduplicate blocks
ext4: remove unused mode parameter
ext4: fix warning about stack corruption
ext4: fix dir_nlink behaviour
ext4: silence array overflow warning
ext4: fix SEEK_HOLE/SEEK_DATA for blocksize < pagesize
ext4: release discard bio after sending discard commands
ext4: convert swap_inode_data() over to use swap() on most of the fields
ext4: error should be cleared if ea_inode isn't added to the cache
ext4: Don't clear SGID when inheriting ACLs
ext4: preserve i_mode if __ext4_set_acl() fails
ext4: remove unused metadata accounting variables
ext4: correct comment references to ext4_ext_direct_IO()
Pull MIPS fixes from Ralf Baechle:
"This fixes two build issues for ralink platforms, both due to missing
#includes which used to be included indirectly via other headers"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
MIPS: ralink: mt7620: Add missing header
MIPS: ralink: Fix build error due to missing header
The latest change of compat_sys_sigpending in commit 8f13621abc
("sigpending(): move compat to native") has broken it in two ways.
First, it tries to write 4 bytes more than userspace expects:
sizeof(old_sigset_t) == sizeof(long) == 8 instead of
sizeof(compat_old_sigset_t) == sizeof(u32) == 4.
Second, on big endian architectures these bytes are being written in the
wrong order.
This bug was found by strace test suite.
Reported-by: Anatoly Pugachev <matorola@gmail.com>
Inspired-by: Eugene Syromyatnikov <evgsyr@gmail.com>
Fixes: 8f13621abc ("sigpending(): move compat to native")
Signed-off-by: Dmitry V. Levin <ldv@altlinux.org>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This bug was found by a static code checker tool for copy paste
problems.
Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Signed-off-by: Vaneet Narang <v.narang@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
On a 32-bit platform, the value of n_blcoks_count may be wrong during
the file system is resized to size larger than 2^32 blocks. This may
caused the superblock being corrupted with zero blocks count.
Fixes: 1c6bd7173d
Signed-off-by: Jerry Lee <jerrylee@qnap.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org # 3.7+
When upgrading from old format, try to set project id
to old file first time, it will return EOVERFLOW, but if
that file is dirtied(touch etc), changing project id will
be allowed, this might be confusing for users, we could
try to expand @i_extra_isize here too.
Reported-by: Zhang Yi <yi.zhang@huawei.com>
Signed-off-by: Miao Xie <miaoxie@huawei.com>
Signed-off-by: Wang Shilong <wshilong@ddn.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Clean up some goto statement, make ext4_expand_extra_isize_ea() clearer.
Signed-off-by: Miao Xie <miaoxie@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Wang Shilong <wshilong@ddn.com>
Current ext4_expand_extra_isize just tries to expand extra isize, if
someone is holding xattr lock or some check fails, it will give up.
So rename its name to ext4_try_to_expand_extra_isize.
Besides that, we clean up unnecessary check and move some relative checks
into it.
Signed-off-by: Miao Xie <miaoxie@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Wang Shilong <wshilong@ddn.com>
We should avoid the contention between the i_extra_isize update and
the inline data insertion, so move the xattr trylock in front of
i_extra_isize update.
Signed-off-by: Miao Xie <miaoxie@huawei.com>
Reviewed-by: Wang Shilong <wshilong@ddn.com>
ext4_xattr_inode_read() currently reads each block sequentially while
waiting for io operation to complete before moving on to the next
block. This prevents request merging in block layer.
Add a ext4_bread_batch() function that starts reads for all blocks
then optionally waits for them to complete. A similar logic is used
in ext4_find_entry(), so update that code to use the new function.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
When an xattr block has a single reference, block is updated inplace
and it is reinserted to the cache. Later, a cache lookup is performed
to see whether an existing block has the same contents. This cache
lookup will most of the time return the just inserted entry so
deduplication is not achieved.
Running the following test script will produce two xattr blocks which
can be observed in "File ACL: " line of debugfs output:
mke2fs -b 1024 -I 128 -F -O extent /dev/sdb 1G
mount /dev/sdb /mnt/sdb
touch /mnt/sdb/{x,y}
setfattr -n user.1 -v aaa /mnt/sdb/x
setfattr -n user.2 -v bbb /mnt/sdb/x
setfattr -n user.1 -v aaa /mnt/sdb/y
setfattr -n user.2 -v bbb /mnt/sdb/y
debugfs -R 'stat x' /dev/sdb | cat
debugfs -R 'stat y' /dev/sdb | cat
This patch defers the reinsertion to the cache so that we can locate
other blocks with the same contents.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
ext4_alloc_file_blocks() does not use its mode parameter. Remove it.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
After commit 62d1034f53e3 ("fortify: use WARN instead of BUG for now"),
we get a warning about possible stack overflow from a memcpy that
was not strictly bounded to the size of the local variable:
inlined from 'ext4_mb_seq_groups_show' at fs/ext4/mballoc.c:2322:2:
include/linux/string.h:309:9: error: '__builtin_memcpy': writing between 161 and 1116 bytes into a region of size 160 overflows the destination [-Werror=stringop-overflow=]
We actually had a bug here that would have been found by the warning,
but it was already fixed last year in commit 30a9d7afe7 ("ext4: fix
stack memory corruption with 64k block size").
This replaces the fixed-length structure on the stack with a variable-length
structure, using the correct upper bound that tells the compiler that
everything is really fine here. I also change the loop count to check
for the same upper bound for consistency, but the existing code is
already correct here.
Note that while clang won't allow certain kinds of variable-length arrays
in structures, this particular instance is fine, as the array is at the
end of the structure, and the size is strictly bounded.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
The dir_nlink feature has been enabled by default for new ext4
filesystems since e2fsprogs-1.41 in 2008, and was automatically
enabled by the kernel for older ext4 filesystems since the
dir_nlink feature was added with ext4 in kernel 2.6.28+ when
the subdirectory count exceeded EXT4_LINK_MAX-1.
Automatically adding the file system features such as dir_nlink is
generally frowned upon, since it could cause the file system to not be
mountable on older kernel, thus preventing the administrator from
rolling back to an older kernel if necessary.
In this case, the administrator might also want to disable the feature
because glibc's fts_read() function does not correctly optimize
directory traversal for directories that use st_nlinks field of 1 to
indicate that the number of links in the directory are not tracked by
the file system, and could fail to traverse the full directory
hierarchy. Fortunately, in the past ten years very few users have
complained about incomplete file system traversal by glibc's
fts_read().
This commit also changes ext4_inc_count() to allow i_nlinks to reach
the full EXT4_LINK_MAX links on the parent directory (including "."
and "..") before changing i_links_count to be 1.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196405
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
I get a static checker warning:
fs/ext4/ext4.h:3091 ext4_set_de_type()
error: buffer overflow 'ext4_type_by_mode' 15 <= 15
It seems unlikely that we would hit this read overflow in real life, but
it's also simple enough to make the array 16 bytes instead of 15.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
ext4_find_unwritten_pgoff() does not properly handle a situation when
starting index is in the middle of a page and blocksize < pagesize. The
following command shows the bug on filesystem with 1k blocksize:
xfs_io -f -c "falloc 0 4k" \
-c "pwrite 1k 1k" \
-c "pwrite 3k 1k" \
-c "seek -a -r 0" foo
In this example, neither lseek(fd, 1024, SEEK_HOLE) nor lseek(fd, 2048,
SEEK_DATA) will return the correct result.
Fix the problem by neglecting buffers in a page before starting offset.
Reported-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
CC: stable@vger.kernel.org # 3.8+
This fixes a problem where the system gets stuck in a loop
unable to wakeup via power button in s2idle.
The problem happens because:
- press power button:
- system emits 0xc0 (power press), event ignored
- system emits 0xc1 (power release), event processed,
emited as KEY_POWER
- set wakeup_mode to true
- system goes to s2idle
- press power button
- system emits 0xc0 (power press), wakeup_mode is true,
system wakes
- system emits 0xc1 (power release), event processed,
emited as KEY_POWER
- system goes to s2idle again
To avoid this situation, process the presses (which matches what
intel-hid does too).
Verified on an Dell XPS 9365
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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Merge tag 'media/v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media fixes from Mauro Carvalho Chehab:
"This series is larger than I would like to submit for -rc4. My
original intent were to sent it to either -rc2 or -rc3. Unfortunately,
due to my vacations, I got a lot of pending stuff after my return, and
had to do some biz trips, with prevented me to send this earlier.
Several fixes:
- some fixes at atomisp staging driver
- several gcc 7 warning fixes
- cleanup media SVG files, in order to fix PDF build on some distros
- fix random Kconfig build of venus driver
- some fixes for the venus driver
- some changes from semaphone to mutex in ngene's driver
- some locking fixes at dib0700 driver
- several fixes on ngene's driver and frontends to make it properly
support some new boards added on Kernel 4.13
- some fixes to CEC drivers
- omap_vout: vrfb: convert to dmaengine
- docs-rst: document EBUSY for VIDIOC_S_FMT
Please notice that the big diffstat changes here are at the SVG files.
Visually, the images look the same, but the file size is now a lot
smaller than before, and they don't use some XML tags that would cause
them to be badly parsed by some ImageMagick versions, or to require a
lot of memory by TeTex, with would break PDF output on some
distributions"
* tag 'media/v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (68 commits)
media: atomisp2: array underflow in imx_enum_frame_size()
media: atomisp2: array underflow in ap1302_enum_frame_size()
media: atomisp2: Array underflow in atomisp_enum_input()
media: platform: davinci: drop VPFE_CMD_S_CCDC_RAW_PARAMS
media: platform: davinci: return -EINVAL for VPFE_CMD_S_CCDC_RAW_PARAMS ioctl
media: venus: don't abuse dma_alloc for non-DMA allocations
media: venus: hfi: fix error handling in hfi_sys_init_done()
media: venus: fix compile-test build on non-qcom ARM platform
media: venus: mark PM functions as __maybe_unused
media: cec-notifier: small improvements
media: pulse8-cec: persistent_config should be off by default
media: cec: cec_transmit_attempt_done: ignore CEC_TX_STATUS_MAX_RETRIES
media: staging: atomisp: array underflow in ioctl
media: lirc: LIRC_GET_REC_RESOLUTION should return microseconds
media: svg: avoid too long lines
media: svg files: simplify files
media: selection.svg: simplify the SVG file
media: vimc: set id_table for platform drivers
media: staging: atomisp: disable warnings with cc-disable-warning
media: davinci: variable 'common' set but not used
...
We've changed the discard command handling into parallel manner.
But, in this change, I forgot decreasing the usage count of the bio
which was used to send discard request. I'm sorry about that.
Fixes: a015434480 ("ext4: send parallel discards on commit completions")
Signed-off-by: Daeho Jeong <daeho.jeong@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
- LP87565: set the proper output level for direction_output.
- stm32: fix the kernel build by selecting the hierarchical
irqdomain symbol properly - this happens to be done in the
pin control framework but whatever, it had dependencies to
GPIO so we need to apply it here.
- Select the hierarchical IRQ domain also for Xgene.
- Fix wakeups to work on MXC.
- Fix up the device tree binding on Exar that went astray,
also add the right bindings.
- Fix the unwanted events for edges from the library.
- Fix the unbalanced chanined IRQ on the Tegra.
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Merge tag 'gpio-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
- LP87565: set the proper output level for direction_output.
- stm32: fix the kernel build by selecting the hierarchical irqdomain
symbol properly - this happens to be done in the pin control
framework but whatever, it had dependencies to GPIO so we need to
apply it here.
- Select the hierarchical IRQ domain also for Xgene.
- Fix wakeups to work on MXC.
- Fix up the device tree binding on Exar that went astray, also add the
right bindings.
- Fix the unwanted events for edges from the library.
- Fix the unbalanced chanined IRQ on the Tegra.
* tag 'gpio-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: tegra: fix unbalanced chained_irq_enter/exit
gpiolib: skip unwanted events, don't convert them to opposite edge
gpio: exar: Use correct property prefix and document bindings
gpio: gpio-mxc: Fix: higher 16 GPIOs usable as wake source
gpio: xgene-sb: select IRQ_DOMAIN_HIERARCHY
pinctrl: stm32: select IRQ_DOMAIN_HIERARCHY instead of depends on
gpio: lp87565: Set proper output level and direction for direction_output
MAINTAINERS: Add entry for Whiskey Cove PMIC GPIO driver
sci_clk_get() API was pretty broken and nobody noticed. There were some
CPUfreq crashes on C.H.I.P devices because we failed to propagate rates
up the clk tree. Also, the Intel Atom PMC clk driver needs to mark a clk
critical if the firmware has it enabled already so that audio doesn't get
killed on Baytrail. Gemini devices have a dead serial console because
the reset control usage in the serial driver assume one method of reset
that gemini doesn't support (this will be fixed in the next version in
the reset framework so this is the small fix for -rc series). Finally
we have two rate calculation fixes, one for Exynos and one for Meson SoCs,
that fix rate inconsistencies.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"A handful of critical fixes for changes introduce this merge window.
- The TI sci_clk_get() API was pretty broken and nobody noticed.
- There were some CPUfreq crashes on C.H.I.P devices because we
failed to propagate rates up the clk tree.
- Also, the Intel Atom PMC clk driver needs to mark a clk critical if
the firmware has it enabled already so that audio doesn't get
killed on Baytrail.
- Gemini devices have a dead serial console because the reset control
usage in the serial driver assume one method of reset that gemini
doesn't support (this will be fixed in the next version in the
reset framework so this is the small fix for -rc series).
- Finally we have two rate calculation fixes, one for Exynos and one
for Meson SoCs, that fix rate inconsistencies"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: keystone: sci-clk: Fix sci_clk_get
clk: meson: mpll: fix mpll0 fractional part ignored
clk: samsung: exynos5420: The EPLL rate table corrections
clk: sunxi-ng: sun5i: Add clk_set_rate_parent to the CPU clock
clk: x86: Do not gate clocks enabled by the firmware
clk: gemini: Fix reset regression
ARM:
- Yet another race with VM destruction plugged
- A set of small vgic fixes
x86:
- Preserve pending INIT
- RCU fixes in paravirtual async pf, VM teardown, and VMXOFF emulation
- nVMX interrupt injection and dirty tracking fixes
- initialize to make UBSAN happy
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- Yet another race with VM destruction plugged
- A set of small vgic fixes
x86:
- Preserve pending INIT
- RCU fixes in paravirtual async pf, VM teardown, and VMXOFF
emulation
- nVMX interrupt injection and dirty tracking fixes
- initialize to make UBSAN happy"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: arm/arm64: vgic: Use READ_ONCE fo cmpxchg
KVM: nVMX: Fix interrupt window request with "Acknowledge interrupt on exit"
KVM: nVMX: mark vmcs12 pages dirty on L2 exit
kvm: nVMX: don't flush VMCS12 during VMXOFF or VCPU teardown
KVM: nVMX: do not pin the VMCS12
KVM: avoid using rcu_dereference_protected
KVM: X86: init irq->level in kvm_pv_kick_cpu_op
KVM: X86: Fix loss of pending INIT due to race
KVM: async_pf: make rcu irq exit if not triggered from idle task
KVM: nVMX: fixes to nested virt interrupt injection
KVM: nVMX: do not fill vm_exit_intr_error_code in prepare_vmcs12
KVM: arm/arm64: Handle hva aging while destroying the vm
KVM: arm/arm64: PMU: Fix overflow interrupt injection
KVM: arm/arm64: Fix bug in advertising KVM_CAP_MSI_DEVID capability
Pull x86 fix from Thomas Gleixner:
"The recent irq core changes unearthed API abuse in the HPET code,
which manifested itself in a suspend/resume regression.
The fix replaces the cruft with the proper function calls and cures
the regression"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/hpet: Cure interface abuse in the resume path
Pull timer fix from Thomas Gleixner:
"A single fix for a multiplication overflow in the timer code on 32bit
systems"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
timers: Fix overflow in get_next_timer_interrupt
This comes a bit later than I planned, and as a consequence is a larger
than it should be.
Most of the changes are devicetree fixes, across lots of platforms:
Renesas, Samsung Exynos, Marvell EBU, TI OMAP, Rockchips, Amlogic Meson,
Sigma Desings Tango, Allwinner SUNxi and TI Davinci.
Also across many platforms, I applied an older series of simple randconfig
build fixes. This includes making the CONFIG_MTD_XIP option compile again,
which had been broken for many years and probably has not been missed, but
it felt wrong to just remove it completely.
The only other changes are:
- We enable HWSPINLOCK in defconfig to get some Qualcomm boards
to work out of the box.
- A few regression fixes for Texas Instruments OMAP2+.
- A boot regression fix for the Renesas regulator quirk.
- A suspend/resume fix for Uniphier SoCs, fixing the resume of the
system bus.
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Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"This comes a bit later than I planned, and as a consequence is a
larger than it should be.
Most of the changes are devicetree fixes, across lots of platforms:
Renesas, Samsung Exynos, Marvell EBU, TI OMAP, Rockchips, Amlogic
Meson, Sigma Desings Tango, Allwinner SUNxi and TI Davinci.
Also across many platforms, I applied an older series of simple
randconfig build fixes. This includes making the CONFIG_MTD_XIP option
compile again, which had been broken for many years and probably has
not been missed, but it felt wrong to just remove it completely.
The only other changes are:
- We enable HWSPINLOCK in defconfig to get some Qualcomm boards to
work out of the box.
- A few regression fixes for Texas Instruments OMAP2+.
- A boot regression fix for the Renesas regulator quirk.
- A suspend/resume fix for Uniphier SoCs, fixing the resume of the
system bus"
* tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits)
ARM: dts: tango4: Request RGMII RX and TX clock delays
bus: uniphier-system-bus: set up registers when resuming
ARM64: dts: marvell: armada-37xx: Fix the number of GPIO on south bridge
ARM: shmobile: rcar-gen2: Fix deadlock in regulator quirk
arm64: defconfig: enable missing HWSPINLOCK
ARM: pxa: select both FB and FB_W100 for eseries
ARM: ixp4xx: fix ioport_unmap definition
ARM: ep93xx: use ARM_PATCH_PHYS_VIRT correctly
ARM: mmp: mark usb_dma_mask as __maybe_unused
ARM: omap2: mark unused functions as __maybe_unused
ARM: omap1: avoid unused variable warning
ARM: sirf: mark sirfsoc_init_late as __maybe_unused
ARM: ixp4xx: use normal prototype for {read,write}s{b,w,l}
ARM: omap1/ams-delta: warn about failed regulator enable
ARM: rpc: rename RAM_SIZE macro
ARM: w90x900: normalize clk API
ARM: ep93xx: normalize clk API
ARM: dts: sun8i: a83t: Switch to CCU device tree binding macros
arm64: allwinner: sun50i-a64: Correct emac register size
ARM: dts: sunxi: h3/h5: Correct emac register size
...
- Report correct timer frequency to userspace when trapping CNTFRQ_EL0
- Fix race with hardware page table updates when updating access flags
- Silence clang overflow warning in VA_START and PAGE_OFFSET calculations
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Here are some more arm64 fixes for 4.13. The main one is the PTE race
with the hardware walker, but there are a couple of other things too.
- Report correct timer frequency to userspace when trapping
CNTFRQ_EL0
- Fix race with hardware page table updates when updating access
flags
- Silence clang overflow warning in VA_START and PAGE_OFFSET
calculations"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: avoid overflow in VA_START and PAGE_OFFSET
arm64: Fix potential race with hardware DBM in ptep_set_access_flags()
arm64: Use arch_timer_get_rate when trapping CNTFRQ_EL0
Pull sparc fixes from David Miller:
- block interrupts properly across the entire MMU context change (both
the hw MMU context change and the TSB table change) so that we don't
get a perf event interrupt in the middle. From Rob Gardner.
- be sure to register hugepages early enough, from Nitin Gupta.
- UltraSPARC-III user copy exception handling would return garbage for
the copied length in some circumstances.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
sparc64: Fix exception handling in UltraSPARC-III memcpy.
sbus: Convert to using %pOF instead of full_name
sparc: defconfig: Cleanup from old Kconfig options
sparc64: Register hugepages during arch init
sparc64: Prevent perf from running during super critical sections
->reencode_message() and last minute RADOS semantic changes in v12.1.2.
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Merge tag 'ceph-for-4.13-rc4' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"A bunch of fixes and follow-ups for -rc1 Luminous patches: issues with
->reencode_message() and last minute RADOS semantic changes in
v12.1.2"
* tag 'ceph-for-4.13-rc4' of git://github.com/ceph/ceph-client:
libceph: make RECOVERY_DELETES feature create a new interval
libceph: upmap semantic changes
crush: assume weight_set != null imples weight_set_size > 0
libceph: fallback for when there isn't a pool-specific choose_arg
libceph: don't call ->reencode_message() more than once per message
libceph: make encode_request_*() work with r_mempool requests
Now we hit the usual ASoC-fix-flood in the middle of release.
Most of changes are trivial and device-specific, while one significant
change is the fix for unbalanced of_graph_*() refcounts. This
involved with the change in the graph API itself that had been a bit
messy.
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Merge tag 'sound-4.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Now we hit the usual ASoC-fix-flood in the middle of release.
Most of the changes are trivial and device-specific, while one
significant change is the fix for unbalanced of_graph_*() refcounts.
This involved a change in the graph API itself that had been a bit
messy"
* tag 'sound-4.13-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda - Fix speaker output from VAIO VPCL14M1R
device property: Fix usecount for of_graph_get_port_parent()
ASoC: rt5665: fix wrong register for bclk ratio control
ASoC: Intel: Use MCLK instead of BLCK as the sysclock for RT5514 codec on kabylake platform
ASoC: Intel: Enabling ASRC for RT5663 codec on kabylake platform
ASoC: codecs: msm8916-analog: fix DIG_CLK_CTL_RXD3_CLK_EN define
ASoC: Intel: Skylake: Fix missing sentinels in sst_acpi_mach
ASoC: sh: hac: add missing "int ret"
ASoC: samsung: odroid: Fix EPLL frequency values
ASoC: sgtl5000: Use snd_soc_kcontrol_codec()
ASoC: rt5665: fix GPIO6 pin function define
ASoC: ux500: Restore platform DAI assignments
ASoC: fix pcm-creation regression
ASoC: do not close shared backend dailink
ASoC: pxa: SND_PXA2XX_SOC should depend on HAS_DMA
ASoC: Intel: Skylake: Fix default dma_buffer_size
ASoC: rt5663: Update the HW default values based on the shipping version
ASoC: imx-ssi: add check on platform_get_irq return value
Including:
- Fix a scheduling-while-atomic bug in the AMD IOMMU driver. It
was found after the checker was enabled earlier.
- A fix for the virtual APIC code in the AMD IOMMU driver which
delivers device interrupts directly into KVM guests for
assigned devices.
- Fixes for the recently merged lock-less page-table code for
ARM. The redundant TLB syncs got reverted and locks added
again around the TLB sync code.
- Fix for error handling in arm_smmu_add_device()
- Address sanitization fix for arm io-pgtable code
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Merge tag 'iommu-fixes-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU fixes from Joerg Roedel:
- fix a scheduling-while-atomic bug in the AMD IOMMU driver. It was
found after the checker was enabled earlier.
- a fix for the virtual APIC code in the AMD IOMMU driver which
delivers device interrupts directly into KVM guests for assigned
devices.
- fixes for the recently merged lock-less page-table code for ARM. The
redundant TLB syncs got reverted and locks added again around the TLB
sync code.
- fix for error handling in arm_smmu_add_device()
- address sanitization fix for arm io-pgtable code
* tag 'iommu-fixes-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
iommu/amd: Fix schedule-while-atomic BUG in initialization code
iommu/amd: Enable ga_log_intr when enabling guest_mode
iommu/io-pgtable: Sanitise map/unmap addresses
iommu/arm-smmu: Fix the error path in arm_smmu_add_device
Revert "iommu/io-pgtable: Avoid redundant TLB syncs"
iommu/mtk: Avoid redundant TLB syncs locally
iommu/arm-smmu: Reintroduce locking around TLB sync operations
- Fix NULL pointer dereference for block I/O during hotplug
MMC host:
- sdhci-of-at91: Fix card detect for non-removable cards
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Merge tag 'mmc-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"A couple of mmc fixes intended for v4.13-rc4.
MMC core:
- Fix NULL pointer dereference for block I/O during hotplug
MMC host:
- sdhci-of-at91: Fix card detect for non-removable cards"
* tag 'mmc-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: block: bypass the queue even if usage is present for hotplug
mmc: sdhci-of-at91: force card detect value for non removable devices
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Merge tag 'drm-fixes-for-v4.13-rc4' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Either my email ate everything or everyone is on holidays, either way
all I can find is some lonely AMD fixes"
[ Europe might be on vacation, and the Pacific NW is too hot for work. ]
* tag 'drm-fixes-for-v4.13-rc4' of git://people.freedesktop.org/~airlied/linux:
drm/amdgpu: Use list_del_init in amdgpu_mn_unregister
drm/amdgpu: Fix undue fallthroughs in golden registers initialization
drm/amdgpu: fix header on gfx9 clear state
Fixes for recently merged code:
- a fix for the _PAGE_DEVMAP support, which was breaking KVM on Power9 radix
- avoid a (harmless) lockdep warning in the early SMP code
- return failure for some uses of dma_set_mask() rather than falling back to 32-bits
- fix stack setup in watchdog soft_nmi_common() to use emergency stack
- fix of_irq_to_resource() error check in of_fsl_spi_probe()
Two fixes going to stable:
- fix saving of Transactional Memory SPRs in core dump
- fix __check_irq_replay missing decrementer interrupt
And two misc:
- fix 64-bit boot wrapper build with non-biarch compiler
- work around a POWER9 PMU hang after state-loss idle
Thanks to:
Alistair Popple, Aneesh Kumar K.V, Cyril Bur, Gustavo Romero, Jose Ricardo
Ziviani, Laurent Vivier, Nicholas Piggin, Oliver O'Halloran, Sergei Shtylyov,
Suraj Jitindar Singh, Thomas Gleixner.
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Merge tag 'powerpc-4.13-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Fixes for recently merged code:
- a fix for the _PAGE_DEVMAP support, which was breaking KVM on
Power9 radix
- avoid a (harmless) lockdep warning in the early SMP code
- return failure for some uses of dma_set_mask() rather than falling
back to 32-bits
- fix stack setup in watchdog soft_nmi_common() to use emergency
stack
- fix of_irq_to_resource() error check in of_fsl_spi_probe()
Two fixes going to stable:
- fix saving of Transactional Memory SPRs in core dump
- fix __check_irq_replay missing decrementer interrupt
And two misc:
- fix 64-bit boot wrapper build with non-biarch compiler
- work around a POWER9 PMU hang after state-loss idle
Thanks to: Alistair Popple, Aneesh Kumar K.V, Cyril Bur, Gustavo
Romero, Jose Ricardo Ziviani, Laurent Vivier, Nicholas Piggin, Oliver
O'Halloran, Sergei Shtylyov, Suraj Jitindar Singh, Thomas Gleixner"
* tag 'powerpc-4.13-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/64: Fix __check_irq_replay missing decrementer interrupt
powerpc/perf: POWER9 PMU stops after idle workaround
powerpc/83xx/mpc832x_rdb: fix of_irq_to_resource() error check
powerpc/64s: Fix stack setup in watchdog soft_nmi_common()
powerpc/powernv/pci: Return failure for some uses of dma_set_mask()
powerpc/boot: Fix 64-bit boot wrapper build with non-biarch compiler
powerpc/smp: Call smp_ops->setup_cpu() directly on the boot CPU
powerpc/tm: Fix saving of TM SPRs in core dump
powerpc/mm: Fix pmd/pte_devmap() on non-leaf entries
