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Move the inline assemblies for the AP bus into a separate header file.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Now that the message type modules are linked with the zcrypt_api
into a single module the zcrypt_ops_list is initialized by
the module init function of the zcyppt.ko module. After that
the list is static and all message types are present.
Drop the zcrypt_ops_list_lock spinlock and the module handling
in regard to the message types.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Move the ap bus into the kernel and make it general available.
Additionally include the message types and the API layer as a
preparation for the workload management facility.
Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Signed-off-by: Harald Freudenberger <freude@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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While stressing memory and IO at the same time we changed SMT settings,
we were able to consistently trigger deadlocks in the mm system, which
froze the entire machine.
I think that under memory stress conditions, the large allocations
performed by blk_mq_init_rq_map may trigger a reclaim, which stalls
waiting on the block layer remmaping completion, thus deadlocking the
system. The trace below was collected after the machine stalled,
waiting for the hotplug event completion.
The simplest fix for this is to make allocations in this path
non-reclaimable, with GFP_NOIO. With this patch, We couldn't hit the
issue anymore.
This should apply on top of Jens's for-next branch cleanly.
Changes since v1:
- Use GFP_NOIO instead of GFP_NOWAIT.
Call Trace:
[c000000f0160aaf0] [c000000f0160ab50] 0xc000000f0160ab50 (unreliable)
[c000000f0160acc0] [c000000000016624] __switch_to+0x2e4/0x430
[c000000f0160ad20] [c000000000b1a880] __schedule+0x310/0x9b0
[c000000f0160ae00] [c000000000b1af68] schedule+0x48/0xc0
[c000000f0160ae30] [c000000000b1b4b0] schedule_preempt_disabled+0x20/0x30
[c000000f0160ae50] [c000000000b1d4fc] __mutex_lock_slowpath+0xec/0x1f0
[c000000f0160aed0] [c000000000b1d678] mutex_lock+0x78/0xa0
[c000000f0160af00] [d000000019413cac] xfs_reclaim_inodes_ag+0x33c/0x380 [xfs]
[c000000f0160b0b0] [d000000019415164] xfs_reclaim_inodes_nr+0x54/0x70 [xfs]
[c000000f0160b0f0] [d0000000194297f8] xfs_fs_free_cached_objects+0x38/0x60 [xfs]
[c000000f0160b120] [c0000000003172c8] super_cache_scan+0x1f8/0x210
[c000000f0160b190] [c00000000026301c] shrink_slab.part.13+0x21c/0x4c0
[c000000f0160b2d0] [c000000000268088] shrink_zone+0x2d8/0x3c0
[c000000f0160b380] [c00000000026834c] do_try_to_free_pages+0x1dc/0x520
[c000000f0160b450] [c00000000026876c] try_to_free_pages+0xdc/0x250
[c000000f0160b4e0] [c000000000251978] __alloc_pages_nodemask+0x868/0x10d0
[c000000f0160b6f0] [c000000000567030] blk_mq_init_rq_map+0x160/0x380
[c000000f0160b7a0] [c00000000056758c] blk_mq_map_swqueue+0x33c/0x360
[c000000f0160b820] [c000000000567904] blk_mq_queue_reinit+0x64/0xb0
[c000000f0160b850] [c00000000056a16c] blk_mq_queue_reinit_notify+0x19c/0x250
[c000000f0160b8a0] [c0000000000f5d38] notifier_call_chain+0x98/0x100
[c000000f0160b8f0] [c0000000000c5fb0] __cpu_notify+0x70/0xe0
[c000000f0160b930] [c0000000000c63c4] notify_prepare+0x44/0xb0
[c000000f0160b9b0] [c0000000000c52f4] cpuhp_invoke_callback+0x84/0x250
[c000000f0160ba10] [c0000000000c570c] cpuhp_up_callbacks+0x5c/0x120
[c000000f0160ba60] [c0000000000c7cb8] _cpu_up+0xf8/0x1d0
[c000000f0160bac0] [c0000000000c7eb0] do_cpu_up+0x120/0x150
[c000000f0160bb40] [c0000000006fe024] cpu_subsys_online+0x64/0xe0
[c000000f0160bb90] [c0000000006f5124] device_online+0xb4/0x120
[c000000f0160bbd0] [c0000000006f5244] online_store+0xb4/0xc0
[c000000f0160bc20] [c0000000006f0a68] dev_attr_store+0x68/0xa0
[c000000f0160bc60] [c0000000003ccc30] sysfs_kf_write+0x80/0xb0
[c000000f0160bca0] [c0000000003cbabc] kernfs_fop_write+0x17c/0x250
[c000000f0160bcf0] [c00000000030fe6c] __vfs_write+0x6c/0x1e0
[c000000f0160bd90] [c000000000311490] vfs_write+0xd0/0x270
[c000000f0160bde0] [c0000000003131fc] SyS_write+0x6c/0x110
[c000000f0160be30] [c000000000009204] system_call+0x38/0xec
Signed-off-by: Gabriel Krisman Bertazi <krisman@linux.vnet.ibm.com>
Cc: Brian King <brking@linux.vnet.ibm.com>
Cc: Douglas Miller <dougmill@linux.vnet.ibm.com>
Cc: linux-block@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
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Conflicts:
arch/arm/include/asm/unistd.h
arch/arm/include/uapi/asm/unistd.h
arch/arm/kernel/calls.S
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The new skcipher walk API may crash in the following way. (Interestingly,
the tcrypt boot time tests seem unaffected, while an explicit test using
the module triggers it)
Unable to handle kernel NULL pointer dereference at virtual address 00000000
...
[<ffff000008431d84>] __memcpy+0x84/0x180
[<ffff0000083ec0d0>] skcipher_walk_done+0x328/0x340
[<ffff0000080c5c04>] ctr_encrypt+0x84/0x100
[<ffff000008406d60>] simd_skcipher_encrypt+0x88/0x98
[<ffff0000083fa05c>] crypto_rfc3686_crypt+0x8c/0x98
[<ffff0000009b0900>] test_skcipher_speed+0x518/0x820 [tcrypt]
[<ffff0000009b31c0>] do_test+0x1408/0x3b70 [tcrypt]
[<ffff0000009bd050>] tcrypt_mod_init+0x50/0x1000 [tcrypt]
[<ffff0000080838f4>] do_one_initcall+0x44/0x138
[<ffff0000081aee60>] do_init_module+0x68/0x1e0
[<ffff0000081524d0>] load_module+0x1fd0/0x2458
[<ffff000008152c38>] SyS_finit_module+0xe0/0xf0
[<ffff0000080836f0>] el0_svc_naked+0x24/0x28
This is due to the fact that skcipher_done_slow() may be entered with
walk->buffer unset. Since skcipher_walk_done() already deals with the
case where walk->buffer == walk->page, it appears to be the intention
that walk->buffer point to walk->page after skcipher_next_slow(), so
ensure that is the case.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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When src and dst both are specified and they point to the same file
the sign-file utility will write only signature to the dst file and
the module (.ko file) body will not be written.
That happens because we open the same file with "rb" and "wb" flags,
from fopen man:
w Truncate file to zero length or create text file for writing.
The stream is positioned at the beginning of the file.
...
bm = BIO_new_file(module_name, "rb");
...
bd = BIO_new_file(dest_name, "wb");
...
while ((n = BIO_read(bm, buf, sizeof(buf))),
n > 0) {
ERR(BIO_write(bd, buf, n) < 0, "%s", dest_name);
}
...
Signed-off-by: Alex Yashchenko <alexhoppus111@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In function public_key_verify_signature(), returns variable ret on
error paths. When the call to kmalloc() fails, the value of ret is 0,
and it is not set to an errno before returning. This patch fixes the
bug.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=188891
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The comment for ntb_spad_count incorrectly referred to ntb_mw_count.
Signed-off-by: Aaron Sierra <asierra@xes-inc.com>
Acked-by: Allen Hubbe <Allen.Hubbe@dell.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Trivial fix to typo "repsonse" to "response" in error message.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Commit 4fd06960f120 ("Use the new x86 setup code for i386") introduced a
reference to the make variable LINUX_INCLUDE. That reference got moved
around a bit and copied twice and now there are three references to it.
There has never been a definition of that variable. (Presumably that is
because it started out as a mistyped reference to LINUXINCLUDE.) So this
reference has always been an empty string. Let's remove it before it
spreads any further.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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The build system stopped generating ikconfig.h in v2.6.8. Remove an entry
for it in dontdiff. There's also a reference to it in a small comment.
Remove that comment too, as it is of little help in any case.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This patch fix spelling typos in printk and kconfig.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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According to `man blockdev':
--getsize
Print device size (32-bit!) in sectors.
Deprecated in favor of the --getsz option.
...
--getsz
Get size in 512-byte sectors.
Hence, occurrences of `--getsize' should be replaced with `--getsz',
which this commit has achieved as follows:
$ cd "$repo"
$ git grep -l -e --getsz
Documentation/device-mapper/delay.txt
Documentation/device-mapper/dm-crypt.txt
Documentation/device-mapper/linear.txt
Documentation/device-mapper/log-writes.txt
Documentation/device-mapper/striped.txt
Documentation/device-mapper/switch.txt
$ cd Documentation/device-mapper
$ sed -i s/getsize/getsz/g *
Signed-off-by: Michael Witten <mfwitten@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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'for-4.10/i2c-hid-nopower', 'for-4.10/intel-ish', 'for-4.10/mayflash', 'for-4.10/microsoft-surface-3', 'for-4.10/multitouch', 'for-4.10/sony', 'for-4.10/udraw-ps3', 'for-4.10/upstream' and 'for-4.10/wacom/generic' into for-linus
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start_cpu() pushes a text address on the stack so that stack traces from
idle tasks will show start_cpu() at the end. But it currently shows the
wrong function offset. It's more correct to show the address
immediately after the 'lretq' instruction.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
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: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/2cadd9f16c77da7ee7957bfc5e1c67928c23ca48.1481685203.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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start_cpu() pushes a text address on the stack so that stack traces from
idle tasks will show start_cpu() at the end. But it uses a call
instruction to do that, which is rather obtuse. Use a straightforward
push instead.
Suggested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Andy Lutomirski <luto@kernel.org>
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: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/4d8a1952759721d42d1e62ba9e4a7e3ac5df8574.1481685203.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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For sync direct IO, generic_file_direct_write/generic_file_read_iter
will update file access position. Don't duplicate the update in
.direct_IO. This cause my raid array can't assemble.
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@fb.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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When debugging nvme controller crashes, it's nice to know whether
the controller died cleanly so that the failure is just reflected in
CSTS, it died and put an error in PCI_STATUS, or whether it died so
badly that it stopped responding to PCI configuration space reads.
I've seen a failure that gives 0xffff in PCI_STATUS on a Samsung
"SM951 NVMe SAMSUNG 256GB" with firmware "BXW75D0Q".
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andy Lutomirski <luto@kernel.org>
Reviewed-by: Keith Busch <keith.busch@intel.com>
Fixed up white space and hunk reject.
Signed-off-by: Jens Axboe <axboe@fb.com>
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bdev->bd_contains is not stable before calling __blkdev_get().
When __blkdev_get() is called on a parition with ->bd_openers == 0
it sets
bdev->bd_contains = bdev;
which is not correct for a partition.
After a call to __blkdev_get() succeeds, ->bd_openers will be > 0
and then ->bd_contains is stable.
When FMODE_EXCL is used, blkdev_get() calls
bd_start_claiming() -> bd_prepare_to_claim() -> bd_may_claim()
This call happens before __blkdev_get() is called, so ->bd_contains
is not stable. So bd_may_claim() cannot safely use ->bd_contains.
It currently tries to use it, and this can lead to a BUG_ON().
This happens when a whole device is already open with a bd_holder (in
use by dm in my particular example) and two threads race to open a
partition of that device for the first time, one opening with O_EXCL and
one without.
The thread that doesn't use O_EXCL gets through blkdev_get() to
__blkdev_get(), gains the ->bd_mutex, and sets bdev->bd_contains = bdev;
Immediately thereafter the other thread, using FMODE_EXCL, calls
bd_start_claiming() from blkdev_get(). This should fail because the
whole device has a holder, but because bdev->bd_contains == bdev
bd_may_claim() incorrectly reports success.
This thread continues and blocks on bd_mutex.
The first thread then sets bdev->bd_contains correctly and drops the mutex.
The thread using FMODE_EXCL then continues and when it calls bd_may_claim()
again in:
BUG_ON(!bd_may_claim(bdev, whole, holder));
The BUG_ON fires.
Fix this by removing the dependency on ->bd_contains in
bd_may_claim(). As bd_may_claim() has direct access to the whole
device, it can simply test if the target bdev is the whole device.
Fixes: 6b4517a7913a ("block: implement bd_claiming and claiming block")
Cc: stable@vger.kernel.org (v2.6.35+)
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
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This reverts commit 6d31e3ba232ea22458b2f36b6d3f2f9f11bf3fa4.
This causes bootup problems for me both on my laptop and my desktop.
What they have in common is that they have NVMe disks with dm-crypt, but
it's not the same controller, so it's not controller-specific.
Jens does not see it on his machine (also NVMe), so it's presumably
something that triggers just on bootup. Possibly related to dm-crypt
and the fact that I mark my luks volume with "allow-discards" in
/etc/crypttab.
It's 100% repeatable for me, which made it fairly straightforward to
bisect the problem to this commit. Small mercies.
So we don't know what the reason is yet, but the revert is needed to get
things going again.
Acked-by: Jens Axboe <axboe@fb.com>
Cc: Chaitanya Kulkarni <chaitanya.kulkarni@hgst.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* acpi-cppc:
ACPI / CPPC: Fix per-CPU pointer management in acpi_cppc_processor_probe()
ACPI / CPPC: Fix crash in acpi_cppc_processor_exit()
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Catalin Marinas:
- struct thread_info moved off-stack (also touching
include/linux/thread_info.h and include/linux/restart_block.h)
- cpus_have_cap() reworked to avoid __builtin_constant_p() for static
key use (also touching drivers/irqchip/irq-gic-v3.c)
- uprobes support (currently only for native 64-bit tasks)
- Emulation of kernel Privileged Access Never (PAN) using TTBR0_EL1
switching to a reserved page table
- CPU capacity information passing via DT or sysfs (used by the
scheduler)
- support for systems without FP/SIMD (IOW, kernel avoids touching
these registers; there is no soft-float ABI, nor kernel emulation for
AArch64 FP/SIMD)
- handling of hardware watchpoint with unaligned addresses, varied
lengths and offsets from base
- use of the page table contiguous hint for kernel mappings
- hugetlb fixes for sizes involving the contiguous hint
- remove unnecessary I-cache invalidation in flush_cache_range()
- CNTHCTL_EL2 access fix for CPUs with VHE support (ARMv8.1)
- boot-time checks for writable+executable kernel mappings
- simplify asm/opcodes.h and avoid including the 32-bit ARM counterpart
and make the arm64 kernel headers self-consistent (Xen headers patch
merged separately)
- Workaround for broken .inst support in certain binutils versions
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (60 commits)
arm64: Disable PAN on uaccess_enable()
arm64: Work around broken .inst when defective gas is detected
arm64: Add detection code for broken .inst support in binutils
arm64: Remove reference to asm/opcodes.h
arm64: Get rid of asm/opcodes.h
arm64: smp: Prevent raw_smp_processor_id() recursion
arm64: head.S: Fix CNTHCTL_EL2 access on VHE system
arm64: Remove I-cache invalidation from flush_cache_range()
arm64: Enable HIBERNATION in defconfig
arm64: Enable CONFIG_ARM64_SW_TTBR0_PAN
arm64: xen: Enable user access before a privcmd hvc call
arm64: Handle faults caused by inadvertent user access with PAN enabled
arm64: Disable TTBR0_EL1 during normal kernel execution
arm64: Introduce uaccess_{disable,enable} functionality based on TTBR0_EL1
arm64: Factor out TTBR0_EL1 post-update workaround into a specific asm macro
arm64: Factor out PAN enabling/disabling into separate uaccess_* macros
arm64: Update the synchronous external abort fault description
selftests: arm64: add test for unaligned/inexact watchpoint handling
arm64: Allow hw watchpoint of length 3,5,6 and 7
arm64: hw_breakpoint: Handle inexact watchpoint addresses
...
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 updates from Martin Schwidefsky:
"The main bulk of the s390 patches for the 4.10 merge window:
- Add support for the contiguous memory allocator.
- The recovery for I/O errors in the dasd device driver is improved,
the driver will now remove channel paths that are not working
properly.
- Additional fields are added to /proc/sysinfo, the extended
partition name and the partition UUID.
- New naming for PCI devices with system defined UIDs.
- The last few remaining alloc_bootmem calls are converted to
memblock.
- The thread_info structure is stripped down and moved to the
task_struct. The only field left in thread_info is the flags field.
- Rework of the arch topology code to fix a fake numa issue.
- Refactoring of the atomic primitives and add a new preempt_count
implementation.
- Clocksource steering for the STP sync check offsets.
- The s390 specific headers are changed to make them usable with
CLANG.
- Bug fixes and cleanup"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (70 commits)
s390/cpumf: Use configuration level indication for sampling data
s390: provide memmove implementation
s390: cleanup arch/s390/kernel Makefile
s390: fix initrd corruptions with gcov/kcov instrumented kernels
s390: exclude early C code from gcov profiling
s390/dasd: channel path aware error recovery
s390/dasd: extend dasd path handling
s390: remove unused labels from entry.S
s390/vmlogrdr: fix IUCV buffer allocation
s390/crypto: unlock on error in prng_tdes_read()
s390/sysinfo: show partition extended name and UUID if available
s390/numa: pin all possible cpus to nodes early
s390/numa: establish cpu to node mapping early
s390/topology: use cpu_topology array instead of per cpu variable
s390/smp: initialize cpu_present_mask in setup_arch
s390/topology: always use s390 specific sched_domain_topology_level
s390/smp: use smp_get_base_cpu() helper function
s390/numa: always use logical cpu and core ids
s390: Remove VLAIS in ptff() and clear_table()
s390: fix machine check panic stack switch
...
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
"Xen features and fixes for 4.10
These are some fixes, a move of some arm related headers to share them
between arm and arm64 and a series introducing a helper to make code
more readable.
The most notable change is David stepping down as maintainer of the
Xen hypervisor interface. This results in me sending you the pull
requests for Xen related code from now on"
* tag 'for-linus-4.10-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (29 commits)
xen/balloon: Only mark a page as managed when it is released
xenbus: fix deadlock on writes to /proc/xen/xenbus
xen/scsifront: don't request a slot on the ring until request is ready
xen/x86: Increase xen_e820_map to E820_X_MAX possible entries
x86: Make E820_X_MAX unconditionally larger than E820MAX
xen/pci: Bubble up error and fix description.
xen: xenbus: set error code on failure
xen: set error code on failures
arm/xen: Use alloc_percpu rather than __alloc_percpu
arm/arm64: xen: Move shared architecture headers to include/xen/arm
xen/events: use xen_vcpu_id mapping for EVTCHNOP_status
xen/gntdev: Use VM_MIXEDMAP instead of VM_IO to avoid NUMA balancing
xen-scsifront: Add a missing call to kfree
MAINTAINERS: update XEN HYPERVISOR INTERFACE
xenfs: Use proc_create_mount_point() to create /proc/xen
xen-platform: use builtin_pci_driver
xen-netback: fix error handling output
xen: make use of xenbus_read_unsigned() in xenbus
xen: make use of xenbus_read_unsigned() in xen-pciback
xen: make use of xenbus_read_unsigned() in xen-fbfront
...
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb
Pull swiotlb updates from Konrad Rzeszutek Wilk:
- minor fixes (rate limiting), remove certain functions
- support for DMA_ATTR_SKIP_CPU_SYNC which is an optimization
in the DMA API
* 'stable/for-linus-4.9' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
swiotlb: Minor fix-ups for DMA_ATTR_SKIP_CPU_SYNC support
swiotlb: Add support for DMA_ATTR_SKIP_CPU_SYNC
swiotlb-xen: Enforce return of DMA_ERROR_CODE in mapping function
swiotlb: Drop unused functions swiotlb_map_sg and swiotlb_unmap_sg
swiotlb: Rate-limit printing when running out of SW-IOMMU space
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Pull KVM updates from Paolo Bonzini:
"Small release, the most interesting stuff is x86 nested virt
improvements.
x86:
- userspace can now hide nested VMX features from guests
- nested VMX can now run Hyper-V in a guest
- support for AVX512_4VNNIW and AVX512_FMAPS in KVM
- infrastructure support for virtual Intel GPUs.
PPC:
- support for KVM guests on POWER9
- improved support for interrupt polling
- optimizations and cleanups.
s390:
- two small optimizations, more stuff is in flight and will be in
4.11.
ARM:
- support for the GICv3 ITS on 32bit platforms"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (94 commits)
arm64: KVM: pmu: Reset PMSELR_EL0.SEL to a sane value before entering the guest
KVM: arm/arm64: timer: Check for properly initialized timer on init
KVM: arm/arm64: vgic-v2: Limit ITARGETSR bits to number of VCPUs
KVM: x86: Handle the kthread worker using the new API
KVM: nVMX: invvpid handling improvements
KVM: nVMX: check host CR3 on vmentry and vmexit
KVM: nVMX: introduce nested_vmx_load_cr3 and call it on vmentry
KVM: nVMX: propagate errors from prepare_vmcs02
KVM: nVMX: fix CR3 load if L2 uses PAE paging and EPT
KVM: nVMX: load GUEST_EFER after GUEST_CR0 during emulated VM-entry
KVM: nVMX: generate MSR_IA32_CR{0,4}_FIXED1 from guest CPUID
KVM: nVMX: fix checks on CR{0,4} during virtual VMX operation
KVM: nVMX: support restore of VMX capability MSRs
KVM: nVMX: generate non-true VMX MSRs based on true versions
KVM: x86: Do not clear RFLAGS.TF when a singlestep trap occurs.
KVM: x86: Add kvm_skip_emulated_instruction and use it.
KVM: VMX: Move skip_emulated_instruction out of nested_vmx_check_vmcs12
KVM: VMX: Reorder some skip_emulated_instruction calls
KVM: x86: Add a return value to kvm_emulate_cpuid
KVM: PPC: Book3S: Move prototypes for KVM functions into kvm_ppc.h
...
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon updates from Guenter Roeck:
- new drivers for TMP108 and TC654
- hwmon core code cleanup
- coretemp driver cleanup
- fix overflow issues in several drivers
- minor fixes, cleanups and enhancements in various drivers
* tag 'hwmon-for-linus-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (41 commits)
hwmon: (g762) Fix overflows and crash seen when writing limit attributes
hwmon: (emcw201) Fix overflows seen when writing into limit attributes
hwmon: (emc2103) Fix overflows seen when temperature limit attributes
hwmon: (lm85) Fix overflows seen when writing voltage limit attributes
hwmon: (lm87) Fix overflow seen when writing voltage limit attributes
hwmon: (nct7802) Fix overflows seen when writing into limit attributes
hwmon: (adt7470) Fix overflows seen when writing into limit attributes
hwmon: (adt7462) Fix overflows seen when writing into limit attributes
hwmon: (adm1026) Fix overflows seen when writing into limit attributes
hwmon: (adm1025) Fix overflows seen when writing voltage limits
hwmon: (via-cputemp) Convert to hotplug state machine
devicetree: hwmon: Add documentation for TMP108 driver.
hwmon: Add Texas Instruments TMP108 temperature sensor driver.
hwmon: (core) Simplify sysfs attribute name allocation
hwmon: (core) Rename groups parameter in API to extra_groups
hwmon: (core) Explain why at least two attribute groups are allocated
hwmon: (core) Make is_visible callback truly mandatory
hwmon: (core) Deprecate hwmon_device_register()
hwmon: (core) Clarify use of chip attributes
hwmon: (core) Add support for string attributes to new API
...
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"The nicest things about this release for me is seeing some older
drivers getting some cleanups and modernization, it's really good to
see things moving forwards even for older drivers.
In content terms it's a fairly humdrum release but where the work has
been happening is great.
- Support for simultaneous use of internal and GPIO chip selects for
devices that require the use of the internal select even if it's
not connected and a GPIO is actually routed to the slave device.
- A major rework and cleanup of the fsl-espi driver from Heiner
Kallweit which should make it work substantially better.
- DMA support for Freescale DSPI IPs.
- New drivers for Freescale LPSPI IPs and Marvell Armada 3700.
- Support for Allwinner H3"
* tag 'spi-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (85 commits)
spi: mvebu: fix baudrate calculation for armada variant
spi: Add support for Armada 3700 SPI Controller
spi: armada-3700: Add documentation for the Armada 3700 SPI Controller
spi: fsl-lpspi: quit reading rx fifo under error condition
spi: fsl-lpspi: use GPL as module license
spi: fsl-espi: fix ioread16/iowrite16 endianness
spi: fsl-espi: remove unused linearization code
spi: fsl-espi: eliminate need for linearization when reading from hardware
spi: fsl-espi: eliminate need for linearization when writing to hardware
spi: fsl-espi: determine need for byte swap only once
spi: fsl-lpspi: read lpspi tx/rx fifo size in probe()
spi: fsl-lpspi: use wait_for_completion_timeout() while waiting transfer done
spi: orion: fix comment to mention MVEBU
spi: atmel: remove the use of private channel fields
spi: atmel: trivial: remove unused fields in DMA structure
spi: atmel: Use SPI core DMA mapping framework
spi: atmel: Use core SPI_MASTER_MUST_[RT]X handling
spi: atmel: trivial: move info banner to latest probe action
spi: imx: replace schedule() with cond_resched()
spi: imx: fix potential shift truncation
...
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The :functions: definition allows the specification of multiple
function references which prevents parsing the header file multiple
times.
Reported-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The previous description have been misleading and partially incorrect.
Reported-by: Harsh Jain <harshjain.prof@gmail.com>
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Remove the documentation reference to crypto_alloc_ablkcipher as the API
function call was removed.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Add the KPP API documentation to the kernel crypto API Sphinx
documentation. This addition includes the documentation of the
ECDH and DH helpers which are needed to create the approrpiate input
data for the crypto_kpp_set_secret function.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Keep the cipher API and the request API function documentation in
separate sections.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Update comments to avoid any complaints from Sphinx during compilation.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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With the conversion of the documentation to Sphinx, the old DocBook is
now stale.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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With the conversion of the kernel crypto API DocBook to Sphinx, the
monolithic document is broken up into individual documents. The
documentation is unchanged with the exception of a slight reordering to
keep the individual document parts self-contained.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Commit 4efca4ed ("kbuild: modversions for EXPORT_SYMBOL() for asm") adds
modversion support for symbols exported from asm files. Architectures
must include C-style declarations for those symbols in asm/asm-prototypes.h
in order for them to be versioned.
Add these declarations for x86, and an architecture-independent file that
can be used for common symbols.
With f27c2f6 reverting 8ab2ae6 ("default exported asm symbols to zero") we
produce a scary warning on x86, this commit fixes that.
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Tested-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Tested-by: Peter Wu <peter@lekensteyn.nl>
Tested-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Michal Marek <mmarek@suse.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull another libata patch from Tejun Heo:
"One more patch from Adam added.
It makes libata skip probing for NCQ prio unless the feature is
explicitly requested by the user. This is necessary because some
controllers lock up after the optional feature is probed"
* 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ata: avoid probing NCQ Prio Support if not explicitly requested
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Previously, when the ata device was being initialized we were
probing for NCQ prio support by checking the identify information
and also checking the log page that holds information about ncq prio
support.
This caused an error on an Intel HBA so the code is now updated to
only probe for NCQ prio support when the sysfs variable controlling
NCQ prio support is enabled.
tj: Update formatting, switch to spin_[un]lock_irq() and update
locking a bit, use REVALIDATE instead of RESET, and return -EIO
instead of -EINVAL on config failure.
Signed-off-by: Adam Manzanares <adam.manzanares@wdc.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo:
- Adam added opt-in ATA command priority support.
- There are machines which hide multiple nvme devices behind an ahci
BAR. Dan Williams proposed a solution to force-switch the mode but
deemed too hackishd. People are gonna discuss the proper way to
handle the situation in nvme standard meetings. For now, detect and
warn about the situation.
- Low level driver specific changes.
Christoph Hellwig pipes in about the hidden nvme warning:
"I wish that was the case. We've pretty much agreed that we'll want to
implement it as a virtual PCIe root bridge, similar to Intels other
'innovation' VMD that we work around that way.
But Intel management has apparently decided that they don't want to
spend more cycles on this now that Lenovo has an optional BIOS that
doesn't force this broken mode anymore, and no one outside of Intel
has enough information to implement something like this.
So for now I guess this warning is it, until Intel reconsideres and
spends resources on fixing up the damage their Chipset people caused"
* 'for-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ahci: warn about remapped NVMe devices
ahci-remap.h: add ahci remapping definitions
nvme: move NVMe class code to pci_ids.h
pata: imx: support controller modes up to PIO4
pata: imx: add support of setting timings for PIO modes
pata: imx: set controller PIO mode with .set_piomode callback
pata: imx: sort headers out
ata: set ncq_prio_enabled iff device has support
ata: ATA Command Priority Disabled By Default
ata: Enabling ATA Command Priorities
block: Add iocontext priority to request
ahci: qoriq: added ls1046a platform support
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