When a BIG sync is lost, the device should be set to "disconnected".
This ensures symmetry with the ISO path setup, where the device is
marked as "connected" once the path is established. Without this
change, the device state remains inconsistent and may lead to a
memory leak.
Fixes: b2a5f2e1c1 ("Bluetooth: hci_event: Add support for handling LE BIG Sync Lost event")
Signed-off-by: Yang Li <yang.li@amlogic.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
This attempts to detect if HCI_EV_NUM_COMP_PKTS contain an unbalanced
(more than currently considered outstanding) number of packets otherwise
it could cause the hcon->sent to underflow and loop around breaking the
tracking of the outstanding packets pending acknowledgment.
Fixes: f428091858 ("Bluetooth: Simplify num_comp_pkts_evt function")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
When suspending, the disconnect command for an active Bluetooth
connection could be issued, but the corresponding
`HCI_EV_DISCONN_COMPLETE` event might not be received before the system
completes the suspend process. This can lead to an inconsistent state.
On resume, the controller may auto-accept reconnections from the same
device (due to suspend event filters), but these new connections are
rejected by the kernel which still has connection objects from before
suspend. Resulting in errors like:
```
kernel: Bluetooth: hci0: ACL packet for unknown connection handle 1
kernel: Bluetooth: hci0: Ignoring HCI_Connection_Complete for existing
connection
```
This is a btmon snippet that shows the issue:
```
< HCI Command: Disconnect (0x01|0x0006) plen 3
Handle: 1 Address: 78:20:A5:4A:DF:28 (Nintendo Co.,Ltd)
Reason: Remote User Terminated Connection (0x13)
> HCI Event: Command Status (0x0f) plen 4
Disconnect (0x01|0x0006) ncmd 2
Status: Success (0x00)
[...]
// Host suspends with the event filter set for the device
// On resume, the device tries to reconnect with a new handle
> HCI Event: Connect Complete (0x03) plen 11
Status: Success (0x00)
Handle: 2
Address: 78:20:A5:4A:DF:28 (Nintendo Co.,Ltd)
// Kernel ignores this event because there is an existing connection
with
// handle 1
```
By explicitly setting the connection state to BT_CLOSED we can ensure a
consistent state, even if we don't receive the disconnect complete event
in time.
Link: https://github.com/bluez/bluez/issues/1226
Fixes: 182ee45da0 ("Bluetooth: hci_sync: Rework hci_suspend_notifier")
Signed-off-by: Ludovico de Nittis <ludovico.denittis@collabora.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
When the host sends an HCI_OP_DISCONNECT command, the controller may
respond with the status HCI_ERROR_UNKNOWN_CONN_ID (0x02). E.g. this can
happen on resume from suspend, if the link was terminated by the remote
device before the event mask was correctly set.
This is a btmon snippet that shows the issue:
```
> ACL Data RX: Handle 3 flags 0x02 dlen 12
L2CAP: Disconnection Request (0x06) ident 5 len 4
Destination CID: 65
Source CID: 72
< ACL Data TX: Handle 3 flags 0x00 dlen 12
L2CAP: Disconnection Response (0x07) ident 5 len 4
Destination CID: 65
Source CID: 72
> ACL Data RX: Handle 3 flags 0x02 dlen 12
L2CAP: Disconnection Request (0x06) ident 6 len 4
Destination CID: 64
Source CID: 71
< ACL Data TX: Handle 3 flags 0x00 dlen 12
L2CAP: Disconnection Response (0x07) ident 6 len 4
Destination CID: 64
Source CID: 71
< HCI Command: Set Event Mask (0x03|0x0001) plen 8
Mask: 0x3dbff807fffbffff
Inquiry Complete
Inquiry Result
Connection Complete
Connection Request
Disconnection Complete
Authentication Complete
[...]
< HCI Command: Disconnect (0x01|0x0006) plen 3
Handle: 3 Address: 78:20:A5:4A:DF:28 (Nintendo Co.,Ltd)
Reason: Remote User Terminated Connection (0x13)
> HCI Event: Command Status (0x0f) plen 4
Disconnect (0x01|0x0006) ncmd 1
Status: Unknown Connection Identifier (0x02)
```
Currently, the hci_cs_disconnect function treats any non-zero status
as a command failure. This can be misleading because the connection is
indeed being terminated and the controller is confirming that is has no
knowledge of that connection handle. Meaning that the initial request of
disconnecting a device should be treated as done.
With this change we allow the function to proceed, following the success
path, which correctly calls `mgmt_device_disconnected` and ensures a
consistent state.
Link: https://github.com/bluez/bluez/issues/1226
Fixes: 182ee45da0 ("Bluetooth: hci_sync: Rework hci_suspend_notifier")
Signed-off-by: Ludovico de Nittis <ludovico.denittis@collabora.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Test cgroup v2 freezer time stat. Freezer time accounting should
be independent of other cgroups in the hierarchy and should increase
iff a cgroup is CGRP_FREEZE (regardless of whether it reaches
CGRP_FROZEN).
Skip these tests on systems without freeze time accounting.
Signed-off-by: Tiffany Yang <ynaffit@google.com>
Cc: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
There isn't yet a clear way to identify a set of "lost" time that
everyone (or at least a wider group of users) cares about. However,
users can perform some delay accounting by iterating over components of
interest. This patch allows cgroup v2 freezing time to be one of those
components.
Track the cumulative time that each v2 cgroup spends freezing and expose
it to userland via a new local stat file in cgroupfs. Thank you to
Michal, who provided the ASCII art in the updated documentation.
To access this value:
$ mkdir /sys/fs/cgroup/test
$ cat /sys/fs/cgroup/test/cgroup.stat.local
freeze_time_total 0
Ensure consistent freeze time reads with freeze_seq, a per-cgroup
sequence counter. Writes are serialized using the css_set_lock.
Signed-off-by: Tiffany Yang <ynaffit@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
A hung task can occur during [1] LTP cgroup testing when repeatedly
mounting/unmounting perf_event and net_prio controllers with
systemd.unified_cgroup_hierarchy=1. The hang manifests in
cgroup_lock_and_drain_offline() during root destruction.
Related case:
cgroup_fj_function_perf_event cgroup_fj_function.sh perf_event
cgroup_fj_function_net_prio cgroup_fj_function.sh net_prio
Call Trace:
cgroup_lock_and_drain_offline+0x14c/0x1e8
cgroup_destroy_root+0x3c/0x2c0
css_free_rwork_fn+0x248/0x338
process_one_work+0x16c/0x3b8
worker_thread+0x22c/0x3b0
kthread+0xec/0x100
ret_from_fork+0x10/0x20
Root Cause:
CPU0 CPU1
mount perf_event umount net_prio
cgroup1_get_tree cgroup_kill_sb
rebind_subsystems // root destruction enqueues
// cgroup_destroy_wq
// kill all perf_event css
// one perf_event css A is dying
// css A offline enqueues cgroup_destroy_wq
// root destruction will be executed first
css_free_rwork_fn
cgroup_destroy_root
cgroup_lock_and_drain_offline
// some perf descendants are dying
// cgroup_destroy_wq max_active = 1
// waiting for css A to die
Problem scenario:
1. CPU0 mounts perf_event (rebind_subsystems)
2. CPU1 unmounts net_prio (cgroup_kill_sb), queuing root destruction work
3. A dying perf_event CSS gets queued for offline after root destruction
4. Root destruction waits for offline completion, but offline work is
blocked behind root destruction in cgroup_destroy_wq (max_active=1)
Solution:
Split cgroup_destroy_wq into three dedicated workqueues:
cgroup_offline_wq – Handles CSS offline operations
cgroup_release_wq – Manages resource release
cgroup_free_wq – Performs final memory deallocation
This separation eliminates blocking in the CSS free path while waiting for
offline operations to complete.
[1] https://github.com/linux-test-project/ltp/blob/master/runtest/controllers
Fixes: 334c3679ec ("cgroup: reimplement rebind_subsystems() using cgroup_apply_control() and friends")
Reported-by: Gao Yingjie <gaoyingjie@uniontech.com>
Signed-off-by: Chen Ridong <chenridong@huawei.com>
Suggested-by: Teju Heo <tj@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
This attempts to make unacked packet handling more robust by detecting
if there are no connections left then restore all buffers of the
respective pool.
Fixes: 5638d9ea9c ("Bluetooth: hci_conn: Fix not restoring ISO buffer count on disconnect")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
idpf has a limit on number of scatter-gather frags
that can be used per segment.
Currently, idpf_tx_start() checks if the limit is hit
and forces a linearization of the whole packet.
This requires high order allocations that can fail
under memory pressure. A full size BIG-TCP packet
would require order-7 alocation on x86_64 :/
We can move the check earlier from idpf_features_check()
for TSO packets, to force GSO in this case, removing the
cost of a big copy.
This means that a linearization will eventually happen
with sizes smaller than one MSS.
__idpf_chk_linearize() is renamed to idpf_chk_tso_segment()
and moved to idpf_lib.c
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Cc: Jacob Keller <jacob.e.keller@intel.com>
Cc: Madhu Chittim <madhu.chittim@intel.com>
Cc: Pavan Kumar Linga <pavan.kumar.linga@intel.com>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Andrew Lunn <andrew+netdev@lunn.ch>
Reviewed-by: Joshua Hay <joshua.a.hay@intel.com>
Tested-by: Brian Vazquez <brianvv@google.com>
Acked-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://patch.msgid.link/20250818195934.757936-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
The Free Software Foundation does not reside in "675 Mass Ave, Cambridge"
anymore, so no need to mention that address in the source code here. But
instead of updating the address to their current location, just drop the
license boilerplate text and use a proper SPDX license identifier instead. The
text talks about the "GNU *Library* General Public License" and "any later
version", so LGPL-2.0+ is the right choice here.
[ bp: Massage commit message. ]
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/20250801084531.34089-1-thuth@redhat.com
Commit fd40a63c63 ("drm/atomic: Let drivers decide which planes to
async flip") unintentionally disallowed no-op changes on non-primary
planes that the driver doesn't allow async flips on. This broke async
flips for compositors that disable the cursor plane in every async
atomic commit. To fix that, change drm_atomic_set_property to again
only run atomic_async_check if the plane would actually be changed by
the atomic commit.
Fixes: fd40a63c63 ("drm/atomic: Let drivers decide which planes to async flip")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4263
Signed-off-by: Xaver Hugl <xaver.hugl@kde.org>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Link: https://lore.kernel.org/r/20250822152849.87843-1-xaver.hugl@kde.org
[andrealmeid: fix checkpatch warning]
Signed-off-by: André Almeida <andrealmeid@igalia.com>
Current minimum required version of binutils is 2.30, which supports RDPKRU and
WRPKRU instruction mnemonics.
Replace the byte-wise specification of RDPKRU and WRPKRU with these proper
mnemonics.
No functional change intended.
Signed-off-by: Uros Bizjak <ubizjak@gmail.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/20250616083611.157740-1-ubizjak@gmail.com
There are two registers filled in when reading data from
pcode besides the mailbox itself. Currently, we allow a NULL
value for the second of these two (data1) and assume the first
is defined. However, many of the routines that are calling
this function assume that pcode will ignore the value being
passed in and so leave that first value (data0) defined but
uninitialized. To be safe, make sure this value is always
initialized to something (0 generally) in the event pcode
behavior changes and starts using this value.
v2: Fix sob/author
Signed-off-by: Stuart Summers <stuart.summers@intel.com>
Reviewed-by: Jonathan Cavitt <jonathan.cavitt@intel.com>
Link: https://lore.kernel.org/r/20250819201054.393220-1-stuart.summers@intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
This patch adds tests for the new jeq and jne logic in
is_scalar_branch_taken. The following shows the first test failing
before the previous patch is applied. Once the previous patch is
applied, the verifier can use the tnum values to deduce that instruction
7 is dead code.
0: call bpf_get_prandom_u32#7 ; R0_w=scalar()
1: w0 = w0 ; R0_w=scalar(smin=0,smax=umax=0xffffffff,var_off=(0x0; 0xffffffff))
2: r0 >>= 30 ; R0_w=scalar(smin=smin32=0,smax=umax=smax32=umax32=3,var_off=(0x0; 0x3))
3: r0 <<= 30 ; R0_w=scalar(smin=0,smax=umax=umax32=0xc0000000,smax32=0x40000000,var_off=(0x0; 0xc0000000))
4: r1 = r0 ; R0_w=scalar(id=1,smin=0,smax=umax=umax32=0xc0000000,smax32=0x40000000,var_off=(0x0; 0xc0000000)) R1_w=scalar(id=1,smin=0,smax=umax=umax32=0xc0000000,smax32=0x40000000,var_off=(0x0; 0xc0000000))
5: r1 += 1024 ; R1_w=scalar(smin=umin=umin32=1024,smax=umax=umax32=0xc0000400,smin32=0x80000400,smax32=0x40000400,var_off=(0x400; 0xc0000000))
6: if r1 != r0 goto pc+1 ; R0_w=scalar(id=1,smin=umin=umin32=1024,smax=umax=umax32=0xc0000000,smin32=0x80000400,smax32=0x40000000,var_off=(0x400; 0xc0000000)) R1_w=scalar(smin=umin=umin32=1024,smax=umax=umax32=0xc0000000,smin32=0x80000400,smax32=0x40000400,var_off=(0x400; 0xc0000000))
7: r10 = 0
frame pointer is read only
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Link: https://lore.kernel.org/bpf/550004f935e2553bdb2fb1f09cbde7d0452112d0.1755694148.git.paul.chaignon@gmail.com
In the following toy program (reg states minimized for readability), R0
and R1 always have different values at instruction 6. This is obvious
when reading the program but cannot be guessed from ranges alone as
they overlap (R0 in [0; 0xc0000000], R1 in [1024; 0xc0000400]).
0: call bpf_get_prandom_u32#7 ; R0_w=scalar()
1: w0 = w0 ; R0_w=scalar(var_off=(0x0; 0xffffffff))
2: r0 >>= 30 ; R0_w=scalar(var_off=(0x0; 0x3))
3: r0 <<= 30 ; R0_w=scalar(var_off=(0x0; 0xc0000000))
4: r1 = r0 ; R1_w=scalar(var_off=(0x0; 0xc0000000))
5: r1 += 1024 ; R1_w=scalar(var_off=(0x400; 0xc0000000))
6: if r1 != r0 goto pc+1
Looking at tnums however, we can deduce that R1 is always different from
R0 because their tnums don't agree on known bits. This patch uses this
logic to improve is_scalar_branch_taken in case of BPF_JEQ and BPF_JNE.
This change has a tiny impact on complexity, which was measured with
the Cilium complexity CI test. That test covers 72 programs with
various build and load time configurations for a total of 970 test
cases. For 80% of test cases, the patch has no impact. On the other
test cases, the patch decreases complexity by only 0.08% on average. In
the best case, the verifier needs to walk 3% less instructions and, in
the worst case, 1.5% more. Overall, the patch has a small positive
impact, especially for our largest programs.
Signed-off-by: Paul Chaignon <paul.chaignon@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/be3ee70b6e489c49881cb1646114b1d861b5c334.1755694147.git.paul.chaignon@gmail.com
The DTS code coding style expects exactly one space around '=' or '{'
characters.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20250819131736.86862-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
Rockchip RK3528 ships a naneng-combphy that is shared by PCIe and USB
3.0 controllers. Describe it and the pipe-phy grf which it depends on.
Signed-off-by: Yao Zi <ziyao@disroot.org>
Link: https://lore.kernel.org/r/20250728102947.38984-8-ziyao@disroot.org
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
The function cpa_flush() calls __flush_tlb_one_kernel() and
flush_tlb_all().
Replacing that with a call to flush_tlb_kernel_range() allows
cpa_flush() to make use of INVLPGB or RAR without any additional
changes.
Initialize invlpgb_count_max to 1, since flush_tlb_kernel_range()
can now be called before invlpgb_count_max has been initialized
to the value read from CPUID.
[riel: remove now unused __cpa_flush_tlb]
Signed-off-by: Yu-cheng Yu <yu-cheng.yu@intel.com>
Signed-off-by: Rik van Riel <riel@surriel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/all/20250606171112.4013261-4-riel%40surriel.com
Dimitri Daskalakis says:
====================
selftests: Test XDP_TX for single-buffer
Ensure single buffer XDP functions correctly by covering the following cases:
1) Zero size payload
2) Full MTU
3) Single buffer packets through a multi-buffer XDP program
These changes were tested with netdevsim and fbnic.
# ./ksft-net-drv/drivers/net/xdp.py
TAP version 13
1..10
ok 1 xdp.test_xdp_native_pass_sb
ok 2 xdp.test_xdp_native_pass_mb
ok 3 xdp.test_xdp_native_drop_sb
ok 4 xdp.test_xdp_native_drop_mb
ok 5 xdp.test_xdp_native_tx_sb
ok 6 xdp.test_xdp_native_tx_mb
# Failed run: pkt_sz 2048, offset 1. Last successful run: pkt_sz 1024, offset 256. Reason: Adjustment failed
ok 7 xdp.test_xdp_native_adjst_tail_grow_data
ok 8 xdp.test_xdp_native_adjst_tail_shrnk_data
# Failed run: pkt_sz 512, offset -256. Last successful run: pkt_sz 512, offset -128. Reason: Adjustment failed
ok 9 xdp.test_xdp_native_adjst_head_grow_data
# Failed run: pkt_sz (2048) > HDS threshold (1536) and offset 64 > 48
ok 10 xdp.test_xdp_native_adjst_head_shrnk_data
# Totals: pass:10 fail:0 xfail:0 xpass:0 skip:0 error:0
====================
Link: https://patch.msgid.link/20250821014023.1481662-1-dimitri.daskalakis1@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Test single-buffer XDP_TX for packets with various payload sizes.
Update the socat TX command to generate packets with 0 length payloads.
Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com>
Link: https://patch.msgid.link/20250821014023.1481662-3-dimitri.daskalakis1@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
In preparation of single-buffer XDP_TX tests, refactor common test code
into the _test_xdp_native_tx method. Add support for multiple payload
sizes, and additional validation for RX packet count. Pass the -n flag
to echo to avoid adding an extra byte into the TX packet.
Signed-off-by: Dimitri Daskalakis <dimitri.daskalakis1@gmail.com>
Link: https://patch.msgid.link/20250821014023.1481662-2-dimitri.daskalakis1@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Avoid clearing reclaimed TDX private pages unless the platform is affected
by the X86_BUG_TDX_PW_MCE erratum. This significantly reduces VM shutdown
time on unaffected systems.
Background
KVM currently clears reclaimed TDX private pages using MOVDIR64B, which:
- Clears the TD Owner bit (which identifies TDX private memory) and
integrity metadata without triggering integrity violations.
- Clears poison from cache lines without consuming it, avoiding MCEs on
access (refer TDX Module Base spec. 1348549-006US section 6.5.
Handling Machine Check Events during Guest TD Operation).
The TDX module also uses MOVDIR64B to initialize private pages before use.
If cache flushing is needed, it sets TDX_FEATURES.CLFLUSH_BEFORE_ALLOC.
However, KVM currently flushes unconditionally, refer commit 94c477a751
("x86/virt/tdx: Add SEAMCALL wrappers to add TD private pages")
In contrast, when private pages are reclaimed, the TDX Module handles
flushing via the TDH.PHYMEM.CACHE.WB SEAMCALL.
Problem
Clearing all private pages during VM shutdown is costly. For guests
with a large amount of memory it can take minutes.
Solution
TDX Module Base Architecture spec. documents that private pages reclaimed
from a TD should be initialized using MOVDIR64B, in order to avoid
integrity violation or TD bit mismatch detection when later being read
using a shared HKID, refer April 2025 spec. "Page Initialization" in
section "8.6.2. Platforms not Using ACT: Required Cache Flush and
Initialization by the Host VMM"
That is an overstatement and will be clarified in coming versions of the
spec. In fact, as outlined in "Table 16.2: Non-ACT Platforms Checks on
Memory" and "Table 16.3: Non-ACT Platforms Checks on Memory Reads in Li
Mode" in the same spec, there is no issue accessing such reclaimed pages
using a shared key that does not have integrity enabled. Linux always uses
KeyID 0 which never has integrity enabled. KeyID 0 is also the TME KeyID
which disallows integrity, refer "TME Policy/Encryption Algorithm" bit
description in "Intel Architecture Memory Encryption Technologies" spec
version 1.6 April 2025. So there is no need to clear pages to avoid
integrity violations.
There remains a risk of poison consumption. However, in the context of
TDX, it is expected that there would be a machine check associated with the
original poisoning. On some platforms that results in a panic. However
platforms may support "SEAM_NR" Machine Check capability, in which case
Linux machine check handler marks the page as poisoned, which prevents it
from being allocated anymore, refer commit 7911f145de ("x86/mce:
Implement recovery for errors in TDX/SEAM non-root mode")
Improvement
By skipping the clearing step on unaffected platforms, shutdown time
can improve by up to 40%.
On platforms with the X86_BUG_TDX_PW_MCE erratum (SPR and EMR), continue
clearing because these platforms may trigger poison on partial writes to
previously-private pages, even with KeyID 0, refer commit 1e536e1068
("x86/cpu: Detect TDX partial write machine check erratum")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Kirill A. Shutemov <kas@kernel.org>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Acked-by: Kai Huang <kai.huang@intel.com>
Acked-by: Vishal Annapurve <vannapurve@google.com>
Link: https://lore.kernel.org/all/20250819155811.136099-4-adrian.hunter%40intel.com
tdx_quirk_reset_paddr() was renamed to reflect that, in fact, the clearing
is necessary only for hardware with a certain quirk. That is dealt with in
a subsequent patch.
Rename reset_pamt functions to contain "quirk" to reflect the new
functionality, and remove the now misleading comment.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Acked-by: Kai Huang <kai.huang@intel.com>
Acked-by: Vishal Annapurve <vannapurve@google.com>
Link: https://lore.kernel.org/all/20250819155811.136099-3-adrian.hunter%40intel.com
tdx_clear_page() and reset_tdx_pages() duplicate the TDX page clearing
logic. Rename reset_tdx_pages() to tdx_quirk_reset_paddr() and create
tdx_quirk_reset_page() to call tdx_quirk_reset_paddr() and be used in
place of tdx_clear_page().
The new name reflects that, in fact, the clearing is necessary only for
hardware with a certain quirk. That is dealt with in a subsequent patch
but doing the rename here avoids additional churn.
Note reset_tdx_pages() is slightly different from tdx_clear_page() because,
more appropriately, it uses mb() in place of __mb(). Except when extra
debugging is enabled (kcsan at present), mb() just calls __mb().
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Kirill A. Shutemov <kas@kernel.org>
Reviewed-by: Binbin Wu <binbin.wu@linux.intel.com>
Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Reviewed-by: Rick Edgecombe <rick.p.edgecombe@intel.com>
Acked-by: Kai Huang <kai.huang@intel.com>
Acked-by: Sean Christopherson <seanjc@google.com>
Acked-by: Vishal Annapurve <vannapurve@google.com>
Link: https://lore.kernel.org/all/20250819155811.136099-2-adrian.hunter%40intel.com
KVM is the primary user of TDX within the kernel, and it is KVM that
provides support for running TDX guests.
Add the KVM mailing list to the TDX entry so that KVM people can be
informed of proposed changes and updates related to TDX.
Signed-off-by: Xiaoyao Li <xiaoyao.li@intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Sean Christopherson <seanjc@google.com>
Link: https://lore.kernel.org/all/20250709141035.70299-1-xiaoyao.li%40intel.com
Rick worked extensively to enable TDX in KVM. He will continue to work
on TDX and should be involved in discussions regarding TDX.
Add Rick as a TDX reviewer.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/all/20250708101922.50560-3-kirill.shutemov%40linux.intel.com
This includes files that were previously missed in the TDX entry file
list and makes it more future-proof. Most importantly, this now covers
the recently added KVM enabling.
[ dhansen: move from explicit files to "tdx" filename match ]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/all/20250708101922.50560-2-kirill.shutemov%40linux.intel.com
- When kernel lockdown is active userspace tools that rely on read
operations only are unnecessarily blocked. Fix that by avoiding
ioctl registration during lockdown
- Invalid NULL pointer accesses succeed due to the lowcore is always
mapped the identity mapping pinned to zero. To fix that never map
the first two pages of physical memory with identity mapping
- Fix invalid SCCB present check in the SCLP interrupt handler
- Update defconfigs
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Merge tag 's390-6.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Alexander Gordeev:
- When kernel lockdown is active userspace tools that rely on read
operations only are unnecessarily blocked. Fix that by avoiding ioctl
registration during lockdown
- Invalid NULL pointer accesses succeed due to the lowcore is always
mapped the identity mapping pinned to zero. To fix that never map the
first two pages of physical memory with identity mapping
- Fix invalid SCCB present check in the SCLP interrupt handler
- Update defconfigs
* tag 's390-6.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/hypfs: Enable limited access during lockdown
s390/hypfs: Avoid unnecessary ioctl registration in debugfs
s390/mm: Do not map lowcore with identity mapping
s390/sclp: Fix SCCB present check
s390/configs: Set HZ=1000
s390/configs: Update defconfigs
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Merge tag 'for-linus-6.17-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Two small cleanups which are both relevant only when running as a Xen
guest"
* tag 'for-linus-6.17-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
drivers/xen/xenbus: remove quirk for Xen 3.x
compiler: remove __ADDRESSABLE_ASM{_STR,}() again
Fixes and New HW Support:
- amd/hsmp:
- Ensure sock->metric_tbl_addr is non-NULL
- Register driver even if hwmon registration fails
- amd/pmc: Drop SMU F/W match for Cezanne
- dell-smbios-wmi: Separate "priority" from WMI device ID
- hp-wmi: mark Victus 16-r1xxx for Victus s fan and thermal profile support
- intel-uncore-freq: Check write blocked for efficiency latency control
The following is an automated shortlog grouped by driver:
amd/hsmp:
- Ensure sock->metric_tbl_addr is non-NULL
- Ensure success even if hwmon registration fails
amd: pmc:
- Drop SMU F/W match for Cezanne
dell-smbios-wmi:
- Stop touching WMI device ID
hp-wmi:
- mark Victus 16-r1xxx for victus_s fan and thermal profile support
intel-uncore-freq:
- Check write blocked for ELC
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Merge tag 'platform-drivers-x86-v6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Ilpo Järvinen:
- amd/hsmp:
- Ensure sock->metric_tbl_addr is non-NULL
- Register driver even if hwmon registration fails
- amd/pmc: Drop SMU F/W match for Cezanne
- dell-smbios-wmi: Separate "priority" from WMI device ID
- hp-wmi: mark Victus 16-r1xxx for Victus s fan and thermal profile
support
- intel-uncore-freq: Check write blocked for efficiency latency control
* tag 'platform-drivers-x86-v6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: hp-wmi: mark Victus 16-r1xxx for victus_s fan and thermal profile support
platform/x86/amd/hsmp: Ensure success even if hwmon registration fails
platform/x86/amd/hsmp: Ensure sock->metric_tbl_addr is non-NULL
platform/x86/intel-uncore-freq: Check write blocked for ELC
platform/x86/amd: pmc: Drop SMU F/W match for Cezanne
platform/x86: dell-smbios-wmi: Stop touching WMI device ID
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Merge tag 'block-6.17-20250822' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
"A set of fixes for block that should go into this tree. A bit larger
than what I usually have at this point in time, a lot of that is the
continued fixing of the lockdep annotation for queue freezing that we
recently added, which has highlighted a number of little issues here
and there. This contains:
- MD pull request via Yu:
- Add a legacy_async_del_gendisk mode, to prevent a user tools
regression. New user tools releases will not use such a mode,
the old release with a new kernel now will have warning about
deprecated behavior, and we prepare to remove this legacy mode
after about a year later
- The rename in kernel causing user tools build failure, revert
the rename in mdp_superblock_s
- Fix a regression that interrupted resync can be shown as
recover from mdstat or sysfs
- Improve file size detection for loop, particularly for networked
file systems, by using getattr to get the size rather than the
cached inode size.
- Hotplug CPU lock vs queue freeze fix
- Lockdep fix while updating the number of hardware queues
- Fix stacking for PI devices
- Silence bio_check_eod() for the known case of device removal where
the size is truncated to 0 sectors"
* tag 'block-6.17-20250822' of git://git.kernel.dk/linux:
block: avoid cpu_hotplug_lock depedency on freeze_lock
block: decrement block_rq_qos static key in rq_qos_del()
block: skip q->rq_qos check in rq_qos_done_bio()
blk-mq: fix lockdep warning in __blk_mq_update_nr_hw_queues
block: tone down bio_check_eod
loop: use vfs_getattr_nosec for accurate file size
loop: Consolidate size calculation logic into lo_calculate_size()
block: remove newlines from the warnings in blk_validate_integrity_limits
block: handle pi_tuple_size in queue_limits_stack_integrity
selftests: ublk: Use ARRAY_SIZE() macro to improve code
md: fix sync_action incorrect display during resync
md: add helper rdev_needs_recovery()
md: keep recovery_cp in mdp_superblock_s
md: add legacy_async_del_gendisk mode
Use kcalloc() in main_func() to gain built-in overflow protection, making
memory allocation safer when calculating allocation size compared to
explicit multiplication.
Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Use kcalloc() in rcu_torture_writer() to gain built-in overflow protection,
making memory allocation safer when calculating allocation size compared to
explicit multiplication.
Change sizeof(ulo[0]) and sizeof(rgo[0]) to sizeof(*ulo) and sizeof(*rgo),
as this is more consistent with coding conventions.
Signed-off-by: Qianfeng Rong <rongqianfeng@vivo.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
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Merge tag 'io_uring-6.17-20250822' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
"Just two small fixes - one that fixes inconsistent ->async_data vs
REQ_F_ASYNC_DATA handling in futex, and a followup that just ensures
that if other opcode handlers mess this up, it won't cause any issues"
* tag 'io_uring-6.17-20250822' of git://git.kernel.dk/linux:
io_uring: clear ->async_data as part of normal init
io_uring/futex: ensure io_futex_wait() cleans up properly on failure
This patch updates several dead OLS links in RTFP.txt, replacing them
with working copies hosted on kernel.org.
Originally posted as part of a 2-patch series, this is now being sent
as a standalone v4 patch to avoid confusion.
Signed-off-by: Nikil Paul S <snikilpaul@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
toctree index title ("RCU concepts") is rather a misnomer: RCU concepts
is already described in rcu.rst, whereas the toctree suggests that
the docs themes about handbook on RCU subsystem instead.
Edit the title to reflect the fact.
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
toctree index for RCU currently has maximum depth of 3. Since no docs
currently use more than 3 section heading levels, this effectively spills
the entire docs hierarchy.
Tidy up by reducing toctree depth to 2 (only showing docs title and
second-level sections).
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Unlike other kvm*.sh snippets in RCU torture test documentation,
kvm-remote.sh rerun snippet isn't formatted as literal code block,
causing it to be definition list instead in htmldocs output.
Wrap it like the rest.
Fixes: 0c208a7930 ("doc: Update torture.rst")
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
All fixes in drivers. The largest diffstat in ufs is caused by the
doc update with the next being the qcom null pointer deref fix.
Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"All fixes in drivers. The largest diffstat in ufs is caused by the doc
update with the next being the qcom null pointer deref fix"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: ufs-qcom: Fix ESI null pointer dereference
scsi: ufs: core: Rename ufshcd_wait_for_doorbell_clr()
scsi: ufs: core: Fix the return value documentation
scsi: ufs: core: Remove WARN_ON_ONCE() call from ufshcd_uic_cmd_compl()
scsi: ufs: core: Fix IRQ lock inversion for the SCSI host lock
scsi: qla4xxx: Prevent a potential error pointer dereference
scsi: ufs: ufs-pci: Add support for Intel Wildcat Lake
scsi: fnic: Remove a useless struct mempool forward declaration
- sdhci_am654: Disable HS400 for AM62P SR1.0 and SR1.1
- sdhci-of-arasan: Ensure CD logic stabilization before power-up
- sdhci-pci-gli: Mask the replay timer timeout of AER for GL9763e
MEMSTICK:
- Fix deadlock by moving removing flag earlier
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Merge tag 'mmc-v6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"MMC host:
- sdhci_am654: Disable HS400 for AM62P SR1.0 and SR1.1
- sdhci-of-arasan: Ensure CD logic stabilization before power-up
- sdhci-pci-gli: Mask the replay timer timeout of AER for GL9763e
MEMSTICK:
- Fix deadlock by moving removing flag earlier"
* tag 'mmc-v6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: sdhci_am654: Disable HS400 for AM62P SR1.0 and SR1.1
memstick: Fix deadlock by moving removing flag earlier
mmc: sdhci-of-arasan: Ensure CD logic stabilization before power-up
mmc: sdhci-pci-gli: GL9763e: Mask the replay timer timeout of AER
mmc: sdhci-pci-gli: GL9763e: Rename the gli_set_gl9763e() for consistency
mmc: sdhci-pci-gli: Add a new function to simplify the code
Logging messages that show some type of "out of memory" error are generally
unnecessary as there is a generic message and a stack dump done by the
memory subsystem. These messages generally increase kernel size without
much added value[1].
The dev_err_probe() doesn't do anything when error is '-ENOMEM'. Therefore,
remove the useless call to dev_err_probe(), and just return the value
instead.
[1]: https://lore.kernel.org/lkml/1402419340.30479.18.camel@joe-AO725/
Link: https://patch.msgid.link/r/20250820124011.474224-1-liaoyuanhong@vivo.com
Signed-off-by: Liao Yuanhong <liaoyuanhong@vivo.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Brett Creeley <brett.creeley@amd.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
- Syzkaller found WARN_ON in rxe due to poor lifecycle management of
resources linked to skbs
- Missing error path handling in erdma qp creation
- Initialize the qp number for the GSI QP in erdma
- Mismatching of DIP, SCC and QP numbers in hns
- SRQ bug fixes in bnxt_re
- Memory leak and possibly uninited memory in bnxt_re
- Remove retired irdma maintainer
- Fix kfree() for kvalloc() in ODP
- Fix memory leak in hns
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull rdma fixes from Jason Gunthorpe:
- syzkaller found a WARN_ON in rxe due to poor lifecycle management of
resources linked to skbs
- Missing error path handling in erdma qp creation
- Initialize the qp number for the GSI QP in erdma
- Mismatching of DIP, SCC and QP numbers in hns
- SRQ bug fixes in bnxt_re
- Memory leak and possibly uninited memory in bnxt_re
- Remove retired irdma maintainer
- Fix kfree() for kvalloc() in ODP
- Fix memory leak in hns
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
RDMA/hns: Fix dip entries leak on devices newer than hip09
RDMA/core: Free pfn_list with appropriate kvfree call
MAINTAINERS: Remove bouncing irdma maintainer
RDMA/bnxt_re: Fix to initialize the PBL array
RDMA/bnxt_re: Fix a possible memory leak in the driver
RDMA/bnxt_re: Fix to remove workload check in SRQ limit path
RDMA/bnxt_re: Fix to do SRQ armena by default
RDMA/hns: Fix querying wrong SCC context for DIP algorithm
RDMA/erdma: Fix unset QPN of GSI QP
RDMA/erdma: Fix ignored return value of init_kernel_qp
RDMA/rxe: Flush delayed SKBs while releasing RXE resources
The DTS code coding style expects exactly one space around '='
character.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Pinctrl stack requires ENOTSUPP error code if the parameter is not
supported by the pinctrl driver. Fix the returned error code in pinconf
callbacks if the operation is not supported.
Fixes: 1c8ace2d07 ("pinctrl: airoha: Add support for EN7581 SoC")
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/20250822-airoha-pinconf-err-val-fix-v1-1-87b4f264ced2@kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
