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This commit allows reporting the block size of a
virtio-block device to user space.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-4-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This commit allows reporting the max size of any
single segment of virtio-block devices to user space.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-3-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This commit allows userspace to query capacity of
a virtio-block device.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240218185606.13509-2-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Now that the driver core can properly handle constant struct bus_type,
move the virtio_bus variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Message-Id: <20240204-bus_cleanup-virtio-v1-1-3bcb2212aaa0@marliere.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Jason Wang <jasowang@redhat.com>
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Now that the driver core can properly handle constant struct bus_type,
move the vdpa_bus variable to be a constant structure as well,
placing it into read-only memory which can not be modified at runtime.
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ricardo B. Marliere <ricardo@marliere.net>
Message-Id: <20240204-bus_cleanup-vdpa-v1-1-1745eccb0a5c@marliere.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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IFCVF HW supports operation with vq size less than the max size,
as the spec required.
This commit implements vdpa_config_ops.get_vq_num_min to report
the minimal size of the virtqueues, which gives vDPA framework
a chance to reduce the vring size.
We need at least one descriptor to be functional, but it is better
no less than 64 to meet ceratin performance requirements.
Actually the framework would allocate at least a PAGE for the vq.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-11-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Since we already implemented vdpa_config_ops.get_vq_size,
so get_max_vq_size can return the acutal max size of the
virtqueues other than the max allowed safe size.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-10-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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The size of a virtqueue is a per vq configuration,
this commit allows virtio_vdpa to create
virtqueues with the actual size of a specific
vq size that supported by the backend device.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-9-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This commit implements get_vq_size for vdpa_config_ops. This
new interface is used to report per vq size.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-8-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This commit implements vdpa_config_ops.get_vq_size for vDPA
simulator, this new interface can help report per vq size.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-7-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This commit implements get_vq_size which report
per vq size in vdpa_config_ops
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-6-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This commit implements vdpa_config_ops.get_vq_size in
vp_vdpa, which reports per virtqueue size.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-5-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This commit implements vdpa_ops.get_vq_size to report
the size of a specific virtqueue.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-4-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This commit introduces a new interface get_vq_size to
vDPA config ops, this new interface intends to report
the size of a specific virtqueue
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-3-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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The size of a virtqueue is a per vq configuration.
This commit introduce a new ioctl uAPI to support this flexibility.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20240202163905.8834-2-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This addresses a couple of things found while testing the FLR and AER
handling with the VFs.
- release irqs before calling vp_modern_remove()
- make sure we have a valid struct pointer before using it to release irqs
- make sure the FW is alive before trying to add a new device
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Message-Id: <20240220011050.30913-1-shannon.nelson@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Since commit 295525e29a5b ("virtio_net: merge dma
operations when filling mergeable buffers"), VDUSE device
require support for DMA's .sync_single_for_cpu() operation
as the memory is non-coherent between the device and CPU
because of the use of a bounce buffer.
This patch implements both .sync_single_for_cpu() and
.sync_single_for_device() callbacks, and also skip bounce
buffer copies during DMA map and unmap operations if the
DMA_ATTR_SKIP_CPU_SYNC attribute is set to avoid extra
copies of the same buffer.
Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Message-Id: <20240219170606.587290-1-maxime.coquelin@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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The MLX driver was not updating its control virtqueue size at set_vq_num
and instead always initialized to MLX5_CVQ_MAX_ENT (16) at
setup_cvq_vring.
Qemu would try to set the size to 64 by default, however, because the
CVQ size always was initialized to 16, an error would be thrown when
sending >16 control messages (as used-ring entry 17 is initialized to 0).
For example, starting a guest with x-svq=on and then executing the
following command would produce the error below:
# for i in {1..20}; do ifconfig eth0 hw ether XX:xx:XX:xx:XX:XX; done
qemu-system-x86_64: Insufficient written data (0)
[ 435.331223] virtio_net virtio0: Failed to set mac address by vq command.
SIOCSIFHWADDR: Invalid argument
Acked-by: Dragos Tatulea <dtatulea@nvidia.com>
Acked-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Jonah Palmer <jonah.palmer@oracle.com>
Message-Id: <20240216142502.78095-1-jonah.palmer@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Lei Yang <leiyang@redhat.com>
Fixes: 5262912ef3cf ("vdpa/mlx5: Add support for control VQ and MAC setting")
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If a vdpa device is not in state DRIVER_OK, then there is no driver state
to preserve, so no need to call the suspend and resume driver ops.
Suggested-by: Eugenio Perez Martin <eperezma@redhat.com>"
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Message-Id: <1707834358-165470-1-git-send-email-steven.sistare@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
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Currently, we don't reenable the config if freezing the device failed.
For example, virtio-mem currently doesn't support suspend+resume, and
trying to freeze the device will always fail. Afterwards, the device
will no longer respond to resize requests, because it won't get notified
about config changes.
Let's fix this by re-enabling the config if freezing fails.
Fixes: 22b7050a024d ("virtio: defer config changed notifications")
Cc: <stable@kernel.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20240213135425.795001-1-david@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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vdpasim_do_reset sets running to true, which is wrong, as it allows
vdpasim_kick_vq to post work requests before the device has been
configured. To fix, do not set running until VIRTIO_CONFIG_S_DRIVER_OK
is set.
Fixes: 0c89e2a3a9d0 ("vdpa_sim: Implement suspend vdpa op")
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <1707517807-137331-1-git-send-email-steven.sistare@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Commit 92792ac752aa ("virtio-pci: Introduce admin command sending function")
added "__packed" structures to UAPI header linux/virtio_pci.h. This triggers
build failures in the consumer userspace applications without proper "definition"
of __packed (e.g., kvmtool build fails).
Moreover, the structures are already packed well, and doesn't need explicit
packing, similar to the rest of the structures in all virtio_* headers. Remove
the __packed attribute.
Fixes: 92792ac752aa ("virtio-pci: Introduce admin command sending function")
Cc: Feng Liu <feliu@nvidia.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Yishai Hadas <yishaih@nvidia.com>
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Jean-Philippe Brucker <jean-philippe@linaro.org>
Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Message-Id: <20240125232039.913606-1-suzuki.poulose@arm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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When the Qemu launched with vhost but without tap vnet_hdr,
vhost tries to copy vnet_hdr from socket iter with size 0
to the page that may contain some trash.
That trash can be interpreted as unpredictable values for
vnet_hdr.
That leads to dropping some packets and in some cases to
stalling vhost routine when the vhost_net tries to process
packets and fails in a loop.
Qemu options:
-netdev tap,vhost=on,vnet_hdr=off,...
Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Message-Id: <20240115194840.1183077-1-andrew@daynix.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
- Do not allow large strings (> 4096) as single write to trace_marker
The size of a string written into trace_marker was determined by the
size of the sub-buffer in the ring buffer. That size is dependent on
the PAGE_SIZE of the architecture as it can be mapped into user
space. But on PowerPC, where PAGE_SIZE is 64K, that made the limit of
the string of writing into trace_marker 64K.
One of the selftests looks at the size of the ring buffer sub-buffers
and writes that plus more into the trace_marker. The write will take
what it can and report back what it consumed so that the user space
application (like echo) will write the rest of the string. The string
is stored in the ring buffer and can be read via the "trace" or
"trace_pipe" files.
The reading of the ring buffer uses vsnprintf(), which uses a
precision "%.*s" to make sure it only reads what is stored in the
buffer, as a bug could cause the string to be non terminated.
With the combination of the precision change and the PAGE_SIZE of 64K
allowing huge strings to be added into the ring buffer, plus the test
that would actually stress that limit, a bug was reported that the
precision used was too big for "%.*s" as the string was close to 64K
in size and the max precision of vsnprintf is 32K.
Linus suggested not to have that precision as it could hide a bug if
the string was again stored without a nul byte.
Another issue that was brought up is that the trace_seq buffer is
also based on PAGE_SIZE even though it is not tied to the
architecture limit like the ring buffer sub-buffer is. Having it be
64K * 2 is simply just too big and wasting memory on systems with 64K
page sizes. It is now hardcoded to 8K which is what all other
architectures with 4K PAGE_SIZE has.
Finally, the write to trace_marker is now limited to 4K as there is
no reason to write larger strings into trace_marker.
- ring_buffer_wait() should not loop.
The ring_buffer_wait() does not have the full context (yet) on if it
should loop or not. Just exit the loop as soon as its woken up and
let the callers decide to loop or not (they already do, so it's a bit
redundant).
- Fix shortest_full field to be the smallest amount in the ring buffer
that a waiter is waiting for. The "shortest_full" field is updated
when a new waiter comes in and wants to wait for a smaller amount of
data in the ring buffer than other waiters. But after all waiters are
woken up, it's not reset, so if another waiter comes in wanting to
wait for more data, it will be woken up when the ring buffer has a
smaller amount from what the previous waiters were waiting for.
- The wake up all waiters on close is incorrectly called frome
.release() and not from .flush() so it will never wake up any waiters
as the .release() will not get called until all .read() calls are
finished. And the wakeup is for the waiters in those .read() calls.
* tag 'trace-ring-buffer-v6.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
tracing: Use .flush() call to wake up readers
ring-buffer: Fix resetting of shortest_full
ring-buffer: Fix waking up ring buffer readers
tracing: Limit trace_marker writes to just 4K
tracing: Limit trace_seq size to just 8K and not depend on architecture PAGE_SIZE
tracing: Remove precision vsnprintf() check from print event
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git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy
Pull phy fixes from Vinod Koul:
- fixes for Qualcomm qmp-combo driver for ordering of drm and type-c
switch registartion due to drivers might not probe defer after having
registered child devices to avoid triggering a probe deferral loop.
This fixes internal display on Lenovo ThinkPad X13s
* tag 'phy-fixes3-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
phy: qcom-qmp-combo: fix type-c switch registration
phy: qcom-qmp-combo: fix drm bridge registration
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The .release() function does not get called until all readers of a file
descriptor are finished.
If a thread is blocked on reading a file descriptor in ring_buffer_wait(),
and another thread closes the file descriptor, it will not wake up the
other thread as ring_buffer_wake_waiters() is called by .release(), and
that will not get called until the .read() is finished.
The issue originally showed up in trace-cmd, but the readers are actually
other processes with their own file descriptors. So calling close() would wake
up the other tasks because they are blocked on another descriptor then the
one that was closed(). But there's other wake ups that solve that issue.
When a thread is blocked on a read, it can still hang even when another
thread closed its descriptor.
This is what the .flush() callback is for. Have the .flush() wake up the
readers.
Link: https://lore.kernel.org/linux-trace-kernel/20240308202432.107909457@goodmis.org
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linke li <lilinke99@qq.com>
Cc: Rabin Vincent <rabin@rab.in>
Fixes: f3ddb74ad0790 ("tracing: Wake up ring buffer waiters on closing of the file")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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The "shortest_full" variable is used to keep track of the waiter that is
waiting for the smallest amount on the ring buffer before being woken up.
When a tasks waits on the ring buffer, it passes in a "full" value that is
a percentage. 0 means wake up on any data. 1-100 means wake up from 1% to
100% full buffer.
As all waiters are on the same wait queue, the wake up happens for the
waiter with the smallest percentage.
The problem is that the smallest_full on the cpu_buffer that stores the
smallest amount doesn't get reset when all the waiters are woken up. It
does get reset when the ring buffer is reset (echo > /sys/kernel/tracing/trace).
This means that tasks may be woken up more often then when they want to
be. Instead, have the shortest_full field get reset just before waking up
all the tasks. If the tasks wait again, they will update the shortest_full
before sleeping.
Also add locking around setting of shortest_full in the poll logic, and
change "work" to "rbwork" to match the variable name for rb_irq_work
structures that are used in other places.
Link: https://lore.kernel.org/linux-trace-kernel/20240308202431.948914369@goodmis.org
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linke li <lilinke99@qq.com>
Cc: Rabin Vincent <rabin@rab.in>
Fixes: 2c2b0a78b3739 ("ring-buffer: Add percentage of ring buffer full to wake up reader")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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Pull kvm fixes from Paolo Bonzini:
"KVM GUEST_MEMFD fixes for 6.8:
- Make KVM_MEM_GUEST_MEMFD mutually exclusive with KVM_MEM_READONLY
to avoid creating an inconsistent ABI (KVM_MEM_GUEST_MEMFD is not
writable from userspace, so there would be no way to write to a
read-only guest_memfd).
- Update documentation for KVM_SW_PROTECTED_VM to make it abundantly
clear that such VMs are purely for development and testing.
- Limit KVM_SW_PROTECTED_VM guests to the TDP MMU, as the long term
plan is to support confidential VMs with deterministic private
memory (SNP and TDX) only in the TDP MMU.
- Fix a bug in a GUEST_MEMFD dirty logging test that caused false
passes.
x86 fixes:
- Fix missing marking of a guest page as dirty when emulating an
atomic access.
- Check for mmu_notifier invalidation events before faulting in the
pfn, and before acquiring mmu_lock, to avoid unnecessary work and
lock contention with preemptible kernels (including
CONFIG_PREEMPT_DYNAMIC in non-preemptible mode).
- Disable AMD DebugSwap by default, it breaks VMSA signing and will
be re-enabled with a better VM creation API in 6.10.
- Do the cache flush of converted pages in svm_register_enc_region()
before dropping kvm->lock, to avoid a race with unregistering of
the same region and the consequent use-after-free issue"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
SEV: disable SEV-ES DebugSwap by default
KVM: x86/mmu: Retry fault before acquiring mmu_lock if mapping is changing
KVM: SVM: Flush pages under kvm->lock to fix UAF in svm_register_enc_region()
KVM: selftests: Add a testcase to verify GUEST_MEMFD and READONLY are exclusive
KVM: selftests: Create GUEST_MEMFD for relevant invalid flags testcases
KVM: x86/mmu: Restrict KVM_SW_PROTECTED_VM to the TDP MMU
KVM: x86: Update KVM_SW_PROTECTED_VM docs to make it clear they're a WIP
KVM: Make KVM_MEM_GUEST_MEMFD mutually exclusive with KVM_MEM_READONLY
KVM: x86: Mark target gfn of emulated atomic instruction as dirty
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A task can wait on a ring buffer for when it fills up to a specific
watermark. The writer will check the minimum watermark that waiters are
waiting for and if the ring buffer is past that, it will wake up all the
waiters.
The waiters are in a wait loop, and will first check if a signal is
pending and then check if the ring buffer is at the desired level where it
should break out of the loop.
If a file that uses a ring buffer closes, and there's threads waiting on
the ring buffer, it needs to wake up those threads. To do this, a
"wait_index" was used.
Before entering the wait loop, the waiter will read the wait_index. On
wakeup, it will check if the wait_index is different than when it entered
the loop, and will exit the loop if it is. The waker will only need to
update the wait_index before waking up the waiters.
This had a couple of bugs. One trivial one and one broken by design.
The trivial bug was that the waiter checked the wait_index after the
schedule() call. It had to be checked between the prepare_to_wait() and
the schedule() which it was not.
The main bug is that the first check to set the default wait_index will
always be outside the prepare_to_wait() and the schedule(). That's because
the ring_buffer_wait() doesn't have enough context to know if it should
break out of the loop.
The loop itself is not needed, because all the callers to the
ring_buffer_wait() also has their own loop, as the callers have a better
sense of what the context is to decide whether to break out of the loop
or not.
Just have the ring_buffer_wait() block once, and if it gets woken up, exit
the function and let the callers decide what to do next.
Link: https://lore.kernel.org/all/CAHk-=whs5MdtNjzFkTyaUy=vHi=qwWgPi0JgTe6OYUYMNSRZfg@mail.gmail.com/
Link: https://lore.kernel.org/linux-trace-kernel/20240308202431.792933613@goodmis.org
Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linke li <lilinke99@qq.com>
Cc: Rabin Vincent <rabin@rab.in>
Fixes: e30f53aad2202 ("tracing: Do not busy wait in buffer splice")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c fixes from Wolfram Sang:
"Two patches from Heiner for the i801 are targeting muxes discovered
while working on some other features. Essentially, there is a
reordering when adding optional slaves and proper cleanup upon
registering a mux device.
Christophe fixes the exit path in the wmt driver that was leaving the
clocks hanging, and the last fix from Tommy avoids false error reports
in IRQ"
* tag 'i2c-for-6.8-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: aspeed: Fix the dummy irq expected print
i2c: wmt: Fix an error handling path in wmt_i2c_probe()
i2c: i801: Avoid potential double call to gpiod_remove_lookup_table
i2c: i801: Fix using mux_pdev before it's set
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git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull firewire fix from Takashi Sakamoto:
"A fix to suppress a warning about unreleased IRQ for 1394 OHCI
hardware when disabling MSI.
In Linux kernel v6.5, a PCI driver for 1394 OHCI hardware was
optimized into the managed device resources. Edmund Raile points out
that the change brings the warning about unreleased IRQ at the call of
pci_disable_msi(), since the API expects that the relevant IRQ has
already been released in advance.
As long as the API is called in .remove callback of PCI device
operation, it is prohibited to maintain the IRQ as the part of managed
device resource. As a workaround, the IRQ is explicitly released at
.remove callback, before the call of pci_disable_msi().
pci_disable_msi() is legacy API nowadays in PCI MSI implementation. I
have a plan to replace it with the modern API in the development for
the future version of Linux kernel. So at present I keep them as is"
* tag 'firewire-fixes-6.8-final' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
firewire: ohci: prevent leak of left-over IRQ on unbind
|
|
The DebugSwap feature of SEV-ES provides a way for confidential guests to use
data breakpoints. However, because the status of the DebugSwap feature is
recorded in the VMSA, enabling it by default invalidates the attestation
signatures. In 6.10 we will introduce a new API to create SEV VMs that
will allow enabling DebugSwap based on what the user tells KVM to do.
Contextually, we will change the legacy KVM_SEV_ES_INIT API to never
enable DebugSwap.
For compatibility with kernels that pre-date the introduction of DebugSwap,
as well as with those where KVM_SEV_ES_INIT will never enable it, do not enable
the feature by default. If anybody wants to use it, for now they can enable
the sev_es_debug_swap_enabled module parameter, but this will result in a
warning.
Fixes: d1f85fbe836e ("KVM: SEV: Enable data breakpoints in SEV-ES")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
|
|
https://github.com/kvm-x86/linux into HEAD
KVM GUEST_MEMFD fixes for 6.8:
- Make KVM_MEM_GUEST_MEMFD mutually exclusive with KVM_MEM_READONLY to
avoid creating ABI that KVM can't sanely support.
- Update documentation for KVM_SW_PROTECTED_VM to make it abundantly
clear that such VMs are purely a development and testing vehicle, and
come with zero guarantees.
- Limit KVM_SW_PROTECTED_VM guests to the TDP MMU, as the long term plan
is to support confidential VMs with deterministic private memory (SNP
and TDX) only in the TDP MMU.
- Fix a bug in a GUEST_MEMFD negative test that resulted in false passes
when verifying that KVM_MEM_GUEST_MEMFD memslots can't be dirty logged.
|
|
KVM x86 fixes for 6.8, round 2:
- When emulating an atomic access, mark the gfn as dirty in the memslot
to fix a bug where KVM could fail to mark the slot as dirty during live
migration, ultimately resulting in guest data corruption due to a dirty
page not being re-copied from the source to the target.
- Check for mmu_notifier invalidation events before faulting in the pfn,
and before acquiring mmu_lock, to avoid unnecessary work and lock
contention. Contending mmu_lock is especially problematic on preemptible
kernels, as KVM may yield mmu_lock in response to the contention, which
severely degrades overall performance due to vCPUs making it difficult
for the task that triggered invalidation to make forward progress.
Note, due to another kernel bug, this fix isn't limited to preemtible
kernels, as any kernel built with CONFIG_PREEMPT_DYNAMIC=y will yield
contended rwlocks and spinlocks.
https://lore.kernel.org/all/20240110214723.695930-1-seanjc@google.com
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|
Pull ceph fix from Ilya Dryomov:
"A follow-up for sparse read fixes that went into -rc4 -- msgr2 case
was missed and is corrected here"
* tag 'ceph-for-6.8-rc8' of https://github.com/ceph/ceph-client:
libceph: init the cursor when preparing sparse read in msgr2
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver fixes from Greg KH:
"Here are a few small char/misc and other driver subsystem fixes for
reported issues that have been in my tree.
Included in here are fixes for:
- iio driver fixes for reported problems
- much reported bugfix for a lis3lv02d_i2c regression
- comedi driver bugfix
- mei new device ids
- mei driver fixes
- counter core fix
All of these have been in linux-next with no reported issues, some for
many weeks"
* tag 'char-misc-6.8-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
mei: gsc_proxy: match component when GSC is on different bus
misc: fastrpc: Pass proper arguments to scm call
comedi: comedi_test: Prevent timers rescheduling during deletion
comedi: comedi_8255: Correct error in subdevice initialization
misc: lis3lv02d_i2c: Fix regulators getting en-/dis-abled twice on suspend/resume
iio: accel: adxl367: fix I2C FIFO data register
iio: accel: adxl367: fix DEVID read after reset
iio: pressure: dlhl60d: Initialize empty DLH bytes
iio: imu: inv_mpu6050: fix frequency setting when chip is off
iio: pressure: Fixes BMP38x and BMP390 SPI support
iio: imu: inv_mpu6050: fix FIFO parsing when empty
mei: Add Meteor Lake support for IVSC device
mei: me: add arrow lake point H DID
mei: me: add arrow lake point S DID
counter: fix privdata alignment
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|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty / serial fixes from Greg KH:
"Here are some small remaining tty/serial driver fixes. Included in
here is fixes for:
- vt unicode buffer corruption fix
- imx serial driver fixes, again
- port suspend fix
- 8250_dw driver fix
- fsl_lpuart driver fix
- revert for the qcom_geni_serial driver to fix a reported regression
All of these have been in linux-next with no reported issues"
* tag 'tty-6.8-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
Revert "tty: serial: simplify qcom_geni_serial_send_chunk_fifo()"
tty: serial: fsl_lpuart: avoid idle preamble pending if CTS is enabled
vt: fix unicode buffer corruption when deleting characters
serial: port: Don't suspend if the port is still busy
serial: 8250_dw: Do not reclock if already at correct rate
tty: serial: imx: Fix broken RS485
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt fixes from Greg KH:
"Here are some small remaining fixes for USB and Thunderbolt drivers.
Included in here are fixes for:
- thunderbold NULL dereference fix
- typec driver fixes
- xhci driver regression fix
- usb-storage divide-by-0 fix
- ncm gadget driver fix
All of these have been in linux-next with no reported issues"
* tag 'usb-6.8-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: Fix failure to detect ring expansion need.
usb: port: Don't try to peer unused USB ports based on location
usb: gadget: ncm: Fix handling of zero block length packets
usb: typec: altmodes/displayport: create sysfs nodes as driver's default device attribute group
usb: typec: tpcm: Fix PORT_RESET behavior for self powered devices
usb: typec: ucsi: fix UCSI on SM8550 & SM8650 Qualcomm devices
USB: usb-storage: Prevent divide-by-0 error in isd200_ata_command
thunderbolt: Fix NULL pointer dereference in tb_port_update_credits()
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
- Fix the PM suspend callback in the STM32 ST32MP257 driver to properly
support suspend
- Drop an extraneous reference put in the debugfs code, this was
confusing the reference counts and causing unsolicited calls to
__free()
* tag 'pinctrl-v6.8-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: don't put the reference to GPIO device in pinctrl_pins_show()
pinctrl: stm32: fix PM support for stm32mp257
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:
- a revert of endpoint checks in bcm5974 - the driver is being naughty
and pokes at unclaimed USB interface, so the check fails. We need to
fix the driver to claim both interfaces, and then re-implement the
endpoints check
- a fix to Synaptics RMI driver to avoid UAF on driver unload or device
unbinding
- a few new VID/PIDs added to xpad game controller driver
- a change to gpio_keys_polled driver to quiet it when GPIO causes
probe deferral.
* tag 'input-for-v6.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: synaptics-rmi4 - fix UAF of IRQ domain on driver removal
Input: gpio_keys_polled - suppress deferred probe error for gpio
Revert "Input: bcm5974 - check endpoint type before starting traffic"
Input: xpad - add additional HyperX Controller Identifiers
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes. Half of them are HD-audio quirks while
the rest are various device-specific ASoC fixes"
* tag 'sound-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ASoC: wm8962: Fix up incorrect error message in wm8962_set_fll
ASoC: wm8962: Enable both SPKOUTR_ENA and SPKOUTL_ENA in mono mode
ASoC: wm8962: Enable oscillator if selecting WM8962_FLL_OSC
ASoC: dt-bindings: nvidia: Fix 'lge' vendor prefix
ALSA: hda/realtek: fix mute/micmute LEDs for HP EliteBook
ASoC: amd: yc: Add HP Pavilion Aero Laptop 13-be2xxx(8BD6) into DMI quirk table
ASoC: rcar: adg: correct TIMSEL setting for SSI9
ALSA: hda: cs35l41: Overwrite CS35L41 configuration for ASUS UM5302LA
ALSA: hda/realtek: Add quirks for Lenovo Thinkbook 16P laptops
ALSA: hda: cs35l41: Support Lenovo Thinkbook 16P
ALSA: hda/realtek - Add Headset Mic supported Acer NB platform
ALSA: hda: optimize the probe codec process
ALSA: hda/realtek - Fix headset Mic no show at resume back for Lenovo ALC897 platform
ASoC: Intel: bytcr_rt5640: Add an extra entry for the Chuwi Vi8 tablet
ASoC: madera: Fix typo in madera_set_fll_clks shift value
|
|
Pull drm fixes from Dave Airlie:
"Regular fixes (two weeks for i915), scattered across drivers, amdgpu
and i915 being the main ones, with nouveau having a couple of fixes.
One patch got applied for udl, but reverted soon after as the
maintainer has missed some crucial prior discussion.
Seems quiet and normal enough for this stage.
MAINTAINERS
- update email address
core:
- fix polling in certain configurations
buddy:
- fix kunit test warning
panel:
- boe-tv101wum-nl6: timing tuning fixes
i915:
- Fix to extract HDCP information from primary connector
- Check for NULL mmu_interval_notifier before removing
- Fix for #10184: Kernel crash on UHD Graphics 730 (Cc stable)
- Fix for #10284: Boot delay regresion with PSR
- Fix DP connector DSC HW state readout
- Selftest fix to convert msecs to jiffies
xe:
- error path fix
amdgpu:
- SMU14 fix
- Fix possible NULL pointer
- VRR fix
- pwm fix
nouveau:
- fix deadlock in new ioctls fail path
- fix missing locking around object rbtree
udl:
- apply and revert format change"
* tag 'drm-fixes-2024-03-08' of https://gitlab.freedesktop.org/drm/kernel: (21 commits)
nouveau: lock the client object tree.
drm/tests/buddy: fix print format
drm/xe: Return immediately on tile_init failure
drm/amdgpu/pm: Fix the error of pwm1_enable setting
drm/amd/display: handle range offsets in VRR ranges
drm/amd/display: check dc_link before dereferencing
drm/amd/swsmu: modify the gfx activity scaling
Revert "drm/udl: Add ARGB8888 as a format"
drm/i915/panelreplay: Move out psr_init_dpcd() from init_connector()
drm/i915/dp: Fix connector DSC HW state readout
drm/i915/selftests: Fix dependency of some timeouts on HZ
drm/udl: Add ARGB8888 as a format
drm/nouveau: fix stale locked mutex in nouveau_gem_ioctl_pushbuf
drm/i915: Don't explode when the dig port we don't have an AUX CH
MAINTAINERS: Update email address for Tvrtko Ursulin
drm/panel: boe-tv101wum-nl6: Fine tune Himax83102-j02 panel HFP and HBP (again)
drm: Fix output poll work for drm_kms_helper_poll=n
drm/i915: Check before removing mm notifier
drm/i915/hdcp: Extract hdcp structure from correct connector
drm/i915/hdcp: Remove additional timing for reading mst hdcp message
...
|
|
When the i2c error condition occurred and master state was not
idle, the master irq function will goto complete state without any
other interrupt handling. It would cause dummy irq expected print.
Under this condition, assign the irq_status into irq_handle.
For example, when the abnormal start / stop occurred (bit 5) with
normal stop status (bit 4) at same time. Then the normal stop status
would not be handled and it would cause irq expected print in
the aspeed_i2c_bus_irq.
...
aspeed-i2c-bus x. i2c-bus: irq handled != irq.
Expected 0x00000030, but was 0x00000020
...
Fixes: 3e9efc3299dd ("i2c: aspeed: Handle master/slave combined irq events properly")
Cc: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Signed-off-by: Tommy Huang <tommy_huang@aspeedtech.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
|
|
wmt_i2c_reset_hardware() calls clk_prepare_enable(). So, should an error
occur after it, it should be undone by a corresponding
clk_disable_unprepare() call, as already done in the remove function.
Fixes: 560746eb79d3 ("i2c: vt8500: Add support for I2C bus on Wondermedia SoCs")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
|
|
If registering the platform device fails, the lookup table is
removed in the error path. On module removal we would try to
remove the lookup table again. Fix this by setting priv->lookup
only if registering the platform device was successful.
In addition free the memory allocated for the lookup table in
the error path.
Fixes: d308dfbf62ef ("i2c: mux/i801: Switch to use descriptor passing")
Cc: stable@vger.kernel.org
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
|
|
i801_probe_optional_slaves() is called before i801_add_mux().
This results in mux_pdev being checked before it's set by
i801_add_mux(). Fix this by changing the order of the calls.
I consider this safe as I see no dependencies.
Fixes: 80e56b86b59e ("i2c: i801: Simplify class-based client device instantiation")
Cc: stable@vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
|
|
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v6.8
Some more driver specific fixes for v6.8, plus one new x86 platform
quirk. All good fixes to have if you have systems that use the relevant
hardware.
|
|
It appears the client object tree has no locking unless I've missed
something else. Fix races around adding/removing client objects,
mostly vram bar mappings.
4562.099306] general protection fault, probably for non-canonical address 0x6677ed422bceb80c: 0000 [#1] PREEMPT SMP PTI
[ 4562.099314] CPU: 2 PID: 23171 Comm: deqp-vk Not tainted 6.8.0-rc6+ #27
[ 4562.099324] Hardware name: Gigabyte Technology Co., Ltd. Z390 I AORUS PRO WIFI/Z390 I AORUS PRO WIFI-CF, BIOS F8 11/05/2021
[ 4562.099330] RIP: 0010:nvkm_object_search+0x1d/0x70 [nouveau]
[ 4562.099503] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 0f 1f 44 00 00 48 89 f8 48 85 f6 74 39 48 8b 87 a0 00 00 00 48 85 c0 74 12 <48> 8b 48 f8 48 39 ce 73 15 48 8b 40 10 48 85 c0 75 ee 48 c7 c0 fe
[ 4562.099506] RSP: 0000:ffffa94cc420bbf8 EFLAGS: 00010206
[ 4562.099512] RAX: 6677ed422bceb814 RBX: ffff98108791f400 RCX: ffff9810f26b8f58
[ 4562.099517] RDX: 0000000000000000 RSI: ffff9810f26b9158 RDI: ffff98108791f400
[ 4562.099519] RBP: ffff9810f26b9158 R08: 0000000000000000 R09: 0000000000000000
[ 4562.099521] R10: ffffa94cc420bc48 R11: 0000000000000001 R12: ffff9810f02a7cc0
[ 4562.099526] R13: 0000000000000000 R14: 00000000000000ff R15: 0000000000000007
[ 4562.099528] FS: 00007f629c5017c0(0000) GS:ffff98142c700000(0000) knlGS:0000000000000000
[ 4562.099534] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4562.099536] CR2: 00007f629a882000 CR3: 000000017019e004 CR4: 00000000003706f0
[ 4562.099541] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4562.099542] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4562.099544] Call Trace:
[ 4562.099555] <TASK>
[ 4562.099573] ? die_addr+0x36/0x90
[ 4562.099583] ? exc_general_protection+0x246/0x4a0
[ 4562.099593] ? asm_exc_general_protection+0x26/0x30
[ 4562.099600] ? nvkm_object_search+0x1d/0x70 [nouveau]
[ 4562.099730] nvkm_ioctl+0xa1/0x250 [nouveau]
[ 4562.099861] nvif_object_map_handle+0xc8/0x180 [nouveau]
[ 4562.099986] nouveau_ttm_io_mem_reserve+0x122/0x270 [nouveau]
[ 4562.100156] ? dma_resv_test_signaled+0x26/0xb0
[ 4562.100163] ttm_bo_vm_fault_reserved+0x97/0x3c0 [ttm]
[ 4562.100182] ? __mutex_unlock_slowpath+0x2a/0x270
[ 4562.100189] nouveau_ttm_fault+0x69/0xb0 [nouveau]
[ 4562.100356] __do_fault+0x32/0x150
[ 4562.100362] do_fault+0x7c/0x560
[ 4562.100369] __handle_mm_fault+0x800/0xc10
[ 4562.100382] handle_mm_fault+0x17c/0x3e0
[ 4562.100388] do_user_addr_fault+0x208/0x860
[ 4562.100395] exc_page_fault+0x7f/0x200
[ 4562.100402] asm_exc_page_fault+0x26/0x30
[ 4562.100412] RIP: 0033:0x9b9870
[ 4562.100419] Code: 85 a8 f7 ff ff 8b 8d 80 f7 ff ff 89 08 e9 18 f2 ff ff 0f 1f 84 00 00 00 00 00 44 89 32 e9 90 fa ff ff 0f 1f 84 00 00 00 00 00 <44> 89 32 e9 f8 f1 ff ff 0f 1f 84 00 00 00 00 00 66 44 89 32 e9 e7
[ 4562.100422] RSP: 002b:00007fff9ba2dc70 EFLAGS: 00010246
[ 4562.100426] RAX: 0000000000000004 RBX: 000000000dd65e10 RCX: 000000fff0000000
[ 4562.100428] RDX: 00007f629a882000 RSI: 00007f629a882000 RDI: 0000000000000066
[ 4562.100432] RBP: 00007fff9ba2e570 R08: 0000000000000000 R09: 0000000123ddf000
[ 4562.100434] R10: 0000000000000001 R11: 0000000000000246 R12: 000000007fffffff
[ 4562.100436] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[ 4562.100446] </TASK>
[ 4562.100448] Modules linked in: nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nf_tables libcrc32c nfnetlink cmac bnep sunrpc iwlmvm intel_rapl_msr intel_rapl_common snd_sof_pci_intel_cnl x86_pkg_temp_thermal intel_powerclamp snd_sof_intel_hda_common mac80211 coretemp snd_soc_acpi_intel_match kvm_intel snd_soc_acpi snd_soc_hdac_hda snd_sof_pci snd_sof_xtensa_dsp snd_sof_intel_hda_mlink snd_sof_intel_hda snd_sof kvm snd_sof_utils snd_soc_core snd_hda_codec_realtek libarc4 snd_hda_codec_generic snd_compress snd_hda_ext_core vfat fat snd_hda_intel snd_intel_dspcfg irqbypass iwlwifi snd_hda_codec snd_hwdep snd_hda_core btusb btrtl mei_hdcp iTCO_wdt rapl mei_pxp btintel snd_seq iTCO_vendor_support btbcm snd_seq_device intel_cstate bluetooth snd_pcm cfg80211 intel_wmi_thunderbolt wmi_bmof intel_uncore snd_timer mei_me snd ecdh_generic i2c_i801
[ 4562.100541] ecc mei i2c_smbus soundcore rfkill intel_pch_thermal acpi_pad zram nouveau drm_ttm_helper ttm gpu_sched i2c_algo_bit drm_gpuvm drm_exec mxm_wmi drm_display_helper drm_kms_helper drm crct10dif_pclmul crc32_pclmul nvme e1000e crc32c_intel nvme_core ghash_clmulni_intel video wmi pinctrl_cannonlake ip6_tables ip_tables fuse
[ 4562.100616] ---[ end trace 0000000000000000 ]---
Signed-off-by: Dave Airlie <airlied@redhat.com>
Cc: stable@vger.kernel.org
|
|
https://anongit.freedesktop.org/git/drm/drm-misc into drm-fixes
A connector status polling fix, a timings fix for the Himax83102-j02
panel, a deadlock fix for nouveau, A controversial format fix for udl
that got reverted to allow further discussion, and a build fix for the
drm/buddy kunit tests.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240307-quizzical-auburn-starling-0ade8f@houat
|
Zhu Lingshan
Ricardo B. Marliere
Shannon Nelson
Maxime Coquelin
Jonah Palmer
Steve Sistare
David Hildenbrand
Suzuki K Poulose
Andrew Melnychenko
Linus Torvalds
Steven Rostedt (Google)
Paolo Bonzini
Tommy Huang
Christophe JAILLET
Heiner Kallweit
Takashi Iwai
Dave Airlie
