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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
bpf-next 2023-01-28
We've added 124 non-merge commits during the last 22 day(s) which contain
a total of 124 files changed, 6386 insertions(+), 1827 deletions(-).
The main changes are:
1) Implement XDP hints via kfuncs with initial support for RX hash and
timestamp metadata kfuncs, from Stanislav Fomichev and
Toke Høiland-Jørgensen.
Measurements on overhead: https://lore.kernel.org/bpf/875yellcx6.fsf@toke.dk
2) Extend libbpf's bpf_tracing.h support for tracing arguments of
kprobes/uprobes and syscall as a special case, from Andrii Nakryiko.
3) Significantly reduce the search time for module symbols by livepatch
and BPF, from Jiri Olsa and Zhen Lei.
4) Enable cpumasks to be used as kptrs, which is useful for tracing
programs tracking which tasks end up running on which CPUs
in different time intervals, from David Vernet.
5) Fix several issues in the dynptr processing such as stack slot liveness
propagation, missing checks for PTR_TO_STACK variable offset, etc,
from Kumar Kartikeya Dwivedi.
6) Various performance improvements, fixes, and introduction of more
than just one XDP program to XSK selftests, from Magnus Karlsson.
7) Big batch to BPF samples to reduce deprecated functionality,
from Daniel T. Lee.
8) Enable struct_ops programs to be sleepable in verifier,
from David Vernet.
9) Reduce pr_warn() noise on BTF mismatches when they are expected under
the CONFIG_MODULE_ALLOW_BTF_MISMATCH config anyway, from Connor O'Brien.
10) Describe modulo and division by zero behavior of the BPF runtime
in BPF's instruction specification document, from Dave Thaler.
11) Several improvements to libbpf API documentation in libbpf.h,
from Grant Seltzer.
12) Improve resolve_btfids header dependencies related to subcmd and add
proper support for HOSTCC, from Ian Rogers.
13) Add ipip6 and ip6ip decapsulation support for bpf_skb_adjust_room()
helper along with BPF selftests, from Ziyang Xuan.
14) Simplify the parsing logic of structure parameters for BPF trampoline
in the x86-64 JIT compiler, from Pu Lehui.
15) Get BTF working for kernels with CONFIG_RUST enabled by excluding
Rust compilation units with pahole, from Martin Rodriguez Reboredo.
16) Get bpf_setsockopt() working for kTLS on top of TCP sockets,
from Kui-Feng Lee.
17) Disable stack protection for BPF objects in bpftool given BPF backends
don't support it, from Holger Hoffstätte.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (124 commits)
selftest/bpf: Make crashes more debuggable in test_progs
libbpf: Add documentation to map pinning API functions
libbpf: Fix malformed documentation formatting
selftests/bpf: Properly enable hwtstamp in xdp_hw_metadata
selftests/bpf: Calls bpf_setsockopt() on a ktls enabled socket.
bpf: Check the protocol of a sock to agree the calls to bpf_setsockopt().
bpf/selftests: Verify struct_ops prog sleepable behavior
bpf: Pass const struct bpf_prog * to .check_member
libbpf: Support sleepable struct_ops.s section
bpf: Allow BPF_PROG_TYPE_STRUCT_OPS programs to be sleepable
selftests/bpf: Fix vmtest static compilation error
tools/resolve_btfids: Alter how HOSTCC is forced
tools/resolve_btfids: Install subcmd headers
bpf/docs: Document the nocast aliasing behavior of ___init
bpf/docs: Document how nested trusted fields may be defined
bpf/docs: Document cpumask kfuncs in a new file
selftests/bpf: Add selftest suite for cpumask kfuncs
selftests/bpf: Add nested trust selftests suite
bpf: Enable cpumasks to be queried and used as kptrs
bpf: Disallow NULLable pointers for trusted kfuncs
...
====================
Link: https://lore.kernel.org/r/20230128004827.21371-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
There are multiple ICMP rate limiting mechanisms:
* Global limits: net.ipv4.icmp_msgs_burst/icmp_msgs_per_sec
* v4 per-host limits: net.ipv4.icmp_ratelimit/ratemask
* v6 per-host limits: net.ipv6.icmp_ratelimit/ratemask
However, when ICMP output is limited, there is no way to tell
which limit has been hit or even if the limits are responsible
for the lack of ICMP output.
Add counters for each of the cases above. As we are within
local_bh_disable(), use the __INC stats variant.
Example output:
# nstat -sz "*RateLimit*"
IcmpOutRateLimitGlobal 134 0.0
IcmpOutRateLimitHost 770 0.0
Icmp6OutRateLimitHost 84 0.0
Signed-off-by: Jamie Bainbridge <jamie.bainbridge@gmail.com>
Suggested-by: Abhishek Rawal <rawal.abhishek92@gmail.com>
Link: https://lore.kernel.org/r/273b32241e6b7fdc5c609e6f5ebc68caf3994342.1674605770.git.jamie.bainbridge@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Users who want to share a single public IP address for outgoing connections
between several hosts traditionally reach for SNAT. However, SNAT requires
state keeping on the node(s) performing the NAT.
A stateless alternative exists, where a single IP address used for egress
can be shared between several hosts by partitioning the available ephemeral
port range. In such a setup:
1. Each host gets assigned a disjoint range of ephemeral ports.
2. Applications open connections from the host-assigned port range.
3. Return traffic gets routed to the host based on both, the destination IP
and the destination port.
An application which wants to open an outgoing connection (connect) from a
given port range today can choose between two solutions:
1. Manually pick the source port by bind()'ing to it before connect()'ing
the socket.
This approach has a couple of downsides:
a) Search for a free port has to be implemented in the user-space. If
the chosen 4-tuple happens to be busy, the application needs to retry
from a different local port number.
Detecting if 4-tuple is busy can be either easy (TCP) or hard
(UDP). In TCP case, the application simply has to check if connect()
returned an error (EADDRNOTAVAIL). That is assuming that the local
port sharing was enabled (REUSEADDR) by all the sockets.
# Assume desired local port range is 60_000-60_511
s = socket(AF_INET, SOCK_STREAM)
s.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)
s.bind(("192.0.2.1", 60_000))
s.connect(("1.1.1.1", 53))
# Fails only if 192.0.2.1:60000 -> 1.1.1.1:53 is busy
# Application must retry with another local port
In case of UDP, the network stack allows binding more than one socket
to the same 4-tuple, when local port sharing is enabled
(REUSEADDR). Hence detecting the conflict is much harder and involves
querying sock_diag and toggling the REUSEADDR flag [1].
b) For TCP, bind()-ing to a port within the ephemeral port range means
that no connecting sockets, that is those which leave it to the
network stack to find a free local port at connect() time, can use
the this port.
IOW, the bind hash bucket tb->fastreuse will be 0 or 1, and the port
will be skipped during the free port search at connect() time.
2. Isolate the app in a dedicated netns and use the use the per-netns
ip_local_port_range sysctl to adjust the ephemeral port range bounds.
The per-netns setting affects all sockets, so this approach can be used
only if:
- there is just one egress IP address, or
- the desired egress port range is the same for all egress IP addresses
used by the application.
For TCP, this approach avoids the downsides of (1). Free port search and
4-tuple conflict detection is done by the network stack:
system("sysctl -w net.ipv4.ip_local_port_range='60000 60511'")
s = socket(AF_INET, SOCK_STREAM)
s.setsockopt(SOL_IP, IP_BIND_ADDRESS_NO_PORT, 1)
s.bind(("192.0.2.1", 0))
s.connect(("1.1.1.1", 53))
# Fails if all 4-tuples 192.0.2.1:60000-60511 -> 1.1.1.1:53 are busy
For UDP this approach has limited applicability. Setting the
IP_BIND_ADDRESS_NO_PORT socket option does not result in local source
port being shared with other connected UDP sockets.
Hence relying on the network stack to find a free source port, limits the
number of outgoing UDP flows from a single IP address down to the number
of available ephemeral ports.
To put it another way, partitioning the ephemeral port range between hosts
using the existing Linux networking API is cumbersome.
To address this use case, add a new socket option at the SOL_IP level,
named IP_LOCAL_PORT_RANGE. The new option can be used to clamp down the
ephemeral port range for each socket individually.
The option can be used only to narrow down the per-netns local port
range. If the per-socket range lies outside of the per-netns range, the
latter takes precedence.
UAPI-wise, the low and high range bounds are passed to the kernel as a pair
of u16 values in host byte order packed into a u32. This avoids pointer
passing.
PORT_LO = 40_000
PORT_HI = 40_511
s = socket(AF_INET, SOCK_STREAM)
v = struct.pack("I", PORT_HI << 16 | PORT_LO)
s.setsockopt(SOL_IP, IP_LOCAL_PORT_RANGE, v)
s.bind(("127.0.0.1", 0))
s.getsockname()
# Local address between ("127.0.0.1", 40_000) and ("127.0.0.1", 40_511),
# if there is a free port. EADDRINUSE otherwise.
[1] https://github.com/cloudflare/cloudflare-blog/blob/232b432c1d57/2022-02-connectx/connectx.py#L116
Reviewed-by: Marek Majkowski <marek@cloudflare.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Regenerate the FOU uAPI header from the YAML spec.
The flags now come before attributes which use them,
and the comments for type disappear (coders should look
at the spec instead).
Acked-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
An SCTP endpoint can start an association through a path and tear it
down over another one. That means the initial path will not see the
shutdown sequence, and the conntrack entry will remain in ESTABLISHED
state for 5 days.
By merging the HEARTBEAT_ACKED and ESTABLISHED states into one
ESTABLISHED state, there remains no difference between a primary or
secondary path. The timeout for the merged ESTABLISHED state is set to
210 seconds (hb_interval * max_path_retrans + rto_max). So, even if a
path doesn't see the shutdown sequence, it will expire in a reasonable
amount of time.
With this change in place, there is now more than one state from which
we can transition to ESTABLISHED, COOKIE_ECHOED and HEARTBEAT_SENT, so
handle the setting of ASSURED bit whenever a state change has happened
and the new state is ESTABLISHED. Removed the check for dir==REPLY since
the transition to ESTABLISHED can happen only in the reply direction.
Fixes: 9fb9cbb1082d ("[NETFILTER]: Add nf_conntrack subsystem.")
Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
This reverts commit (bff3d0534804: "netfilter: conntrack: add sctp
DATA_SENT state")
Using DATA/SACK to detect a new connection on secondary/alternate paths
works only on new connections, while a HEARTBEAT is required on
connection re-use. It is probably consistent to wait for HEARTBEAT to
create a secondary connection in conntrack.
Signed-off-by: Sriram Yagnaraman <sriram.yagnaraman@est.tech>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
First set of patches for v6.3. The most important change here is that
the old Wireless Extension user space interface is not supported on
Wi-Fi 7 devices at all. We also added a warning if anyone with modern
drivers (ie. cfg80211 and mac80211 drivers) tries to use Wireless
Extensions, everyone should switch to using nl80211 interface instead.
Static WEP support is removed, there wasn't any driver using that
anyway so there's no user impact. Otherwise it's smaller features and
fixes as usual.
Note: As mt76 had tricky conflicts due to the fixes in wireless tree,
we decided to merge wireless into wireless-next to solve them easily.
There should not be any merge problems anymore.
Major changes:
cfg80211
* remove never used static WEP support
* warn if Wireless Extention interface is used with cfg80211/mac80211 drivers
* stop supporting Wireless Extensions with Wi-Fi 7 devices
* support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting
rfkill
* add GPIO DT support
bitfield
* add FIELD_PREP_CONST()
mt76
* per-PHY LED support
rtw89
* support new Bluetooth co-existance version
rtl8xxxu
* support RTL8188EU
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Merge tag 'wireless-next-2023-01-23' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next
Kalle Valo says:
====================
wireless-next patches for v6.3
First set of patches for v6.3. The most important change here is that
the old Wireless Extension user space interface is not supported on
Wi-Fi 7 devices at all. We also added a warning if anyone with modern
drivers (ie. cfg80211 and mac80211 drivers) tries to use Wireless
Extensions, everyone should switch to using nl80211 interface instead.
Static WEP support is removed, there wasn't any driver using that
anyway so there's no user impact. Otherwise it's smaller features and
fixes as usual.
Note: As mt76 had tricky conflicts due to the fixes in wireless tree,
we decided to merge wireless into wireless-next to solve them easily.
There should not be any merge problems anymore.
Major changes:
cfg80211
- remove never used static WEP support
- warn if Wireless Extention interface is used with cfg80211/mac80211 drivers
- stop supporting Wireless Extensions with Wi-Fi 7 devices
- support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting
rfkill
- add GPIO DT support
bitfield
- add FIELD_PREP_CONST()
mt76
- per-PHY LED support
rtw89
- support new Bluetooth co-existance version
rtl8xxxu
- support RTL8188EU
* tag 'wireless-next-2023-01-23' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (123 commits)
wifi: wireless: deny wireless extensions on MLO-capable devices
wifi: wireless: warn on most wireless extension usage
wifi: mac80211: drop extra 'e' from ieeee80211... name
wifi: cfg80211: Deduplicate certificate loading
bitfield: add FIELD_PREP_CONST()
wifi: mac80211: add kernel-doc for EHT structure
mac80211: support minimal EHT rate reporting on RX
wifi: mac80211: Add HE MU-MIMO related flags in ieee80211_bss_conf
wifi: mac80211: Add VHT MU-MIMO related flags in ieee80211_bss_conf
wifi: cfg80211: Use MLD address to indicate MLD STA disconnection
wifi: cfg80211: Support 32 bytes KCK key in GTK rekey offload
wifi: cfg80211: Fix extended KCK key length check in nl80211_set_rekey_data()
wifi: cfg80211: remove support for static WEP
wifi: rtl8xxxu: Dump the efuse only for untested devices
wifi: rtl8xxxu: Print the ROM version too
wifi: rtw88: Use non-atomic sta iterator in rtw_ra_mask_info_update()
wifi: rtw88: Use rtw_iterate_vifs() for rtw_vif_watch_dog_iter()
wifi: rtw88: Move register access from rtw_bf_assoc() outside the RCU
wifi: rtl8xxxu: Use a longer retry limit of 48
wifi: rtl8xxxu: Report the RSSI to the firmware
...
====================
Link: https://lore.kernel.org/r/20230123103338.330CBC433EF@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
New flag BPF_F_XDP_DEV_BOUND_ONLY plus all the infra to have a way
to associate a netdev with a BPF program at load time.
netdevsim checks are dropped in favor of generic check in dev_xdp_attach.
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Martin KaFai Lau <martin.lau@linux.dev>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Jesper Dangaard Brouer <brouer@redhat.com>
Cc: Anatoly Burakov <anatoly.burakov@intel.com>
Cc: Alexander Lobakin <alexandr.lobakin@intel.com>
Cc: Magnus Karlsson <magnus.karlsson@gmail.com>
Cc: Maryam Tahhan <mtahhan@redhat.com>
Cc: xdp-hints@xdp-project.net
Cc: netdev@vger.kernel.org
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/r/20230119221536.3349901-6-sdf@google.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
IEEE 802.3-2018 clause 99 defines a MAC Merge sublayer which contains an
Express MAC and a Preemptible MAC. Both MACs are hidden to higher and
lower layers and visible as a single MAC (packet classification to eMAC
or pMAC on TX is done based on priority; classification on RX is done
based on SFD).
For devices which support a MAC Merge sublayer, it is desirable to
retrieve individual packet counters from the eMAC and the pMAC, as well
as aggregate statistics (their sum).
Introduce a new ETHTOOL_A_STATS_SRC attribute which is part of the
policy of ETHTOOL_MSG_STATS_GET and, and an ETHTOOL_A_PAUSE_STATS_SRC
which is part of the policy of ETHTOOL_MSG_PAUSE_GET (accepted when
ETHTOOL_FLAG_STATS is set in the common ethtool header). Both of these
take values from enum ethtool_mac_stats_src, defaulting to "aggregate"
in the absence of the attribute.
Existing drivers do not need to pay attention to this enum which was
added to all driver-facing structures, just the ones which report the
MAC merge layer as supported.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The MAC merge sublayer (IEEE 802.3-2018 clause 99) is one of 2
specifications (the other being Frame Preemption; IEEE 802.1Q-2018
clause 6.7.2), which work together to minimize latency caused by frame
interference at TX. The overall goal of TSN is for normal traffic and
traffic with a bounded deadline to be able to cohabitate on the same L2
network and not bother each other too much.
The standards achieve this (partly) by introducing the concept of
preemptible traffic, i.e. Ethernet frames that have a custom value for
the Start-of-Frame-Delimiter (SFD), and these frames can be fragmented
and reassembled at L2 on a link-local basis. The non-preemptible frames
are called express traffic, they are transmitted using a normal SFD, and
they can preempt preemptible frames, therefore having lower latency,
which can matter at lower (100 Mbps) link speeds, or at high MTUs (jumbo
frames around 9K). Preemption is not recursive, i.e. a P frame cannot
preempt another P frame. Preemption also does not depend upon priority,
or otherwise said, an E frame with prio 0 will still preempt a P frame
with prio 7.
In terms of implementation, the standards talk about the presence of an
express MAC (eMAC) which handles express traffic, and a preemptible MAC
(pMAC) which handles preemptible traffic, and these MACs are multiplexed
on the same MII by a MAC merge layer.
To support frame preemption, the definition of the SFD was generalized
to SMD (Start-of-mPacket-Delimiter), where an mPacket is essentially an
Ethernet frame fragment, or a complete frame. Stations unaware of an SMD
value different from the standard SFD will treat P frames as error
frames. To prevent that from happening, a negotiation process is
defined.
On RX, packets are dispatched to the eMAC or pMAC after being filtered
by their SMD. On TX, the eMAC/pMAC classification decision is taken by
the 802.1Q spec, based on packet priority (each of the 8 user priority
values may have an admin-status of preemptible or express).
The MAC Merge layer and the Frame Preemption parameters have some degree
of independence in terms of how software stacks are supposed to deal
with them. The activation of the MM layer is supposed to be controlled
by an LLDP daemon (after it has been communicated that the link partner
also supports it), after which a (hardware-based or not) verification
handshake takes place, before actually enabling the feature. So the
process is intended to be relatively plug-and-play. Whereas FP settings
are supposed to be coordinated across a network using something
approximating NETCONF.
The support contained here is exclusively for the 802.3 (MAC Merge)
portions and not for the 802.1Q (Frame Preemption) parts. This API is
sufficient for an LLDP daemon to do its job. The FP adminStatus variable
from 802.1Q is outside the scope of an LLDP daemon.
I have taken a few creative licenses and augmented the Linux kernel UAPI
compared to the standard managed objects recommended by IEEE 802.3.
These are:
- ETHTOOL_A_MM_PMAC_ENABLED: According to Figure 99-6: Receive
Processing state diagram, a MAC Merge layer is always supposed to be
able to receive P frames. However, this implies keeping the pMAC
powered on, which will consume needless power in applications where FP
will never be used. If LLDP is used, the reception of an Additional
Ethernet Capabilities TLV from the link partner is sufficient
indication that the pMAC should be enabled. So my proposal is that in
Linux, we keep the pMAC turned off by default and that user space
turns it on when needed.
- ETHTOOL_A_MM_VERIFY_ENABLED: The IEEE managed object is called
aMACMergeVerifyDisableTx. I opted for consistency (positive logic) in
the boolean netlink attributes offered, so this is also positive here.
Other than the meaning being reversed, they correspond to the same
thing.
- ETHTOOL_A_MM_MAX_VERIFY_TIME: I found it most reasonable for a LLDP
daemon to maximize the verifyTime variable (delay between SMD-V
transmissions), to maximize its chances that the LP replies. IEEE says
that the verifyTime can range between 1 and 128 ms, but the NXP ENETC
stupidly keeps this variable in a 7 bit register, so the maximum
supported value is 127 ms. I could have chosen to hardcode this in the
LLDP daemon to a lower value, but why not let the kernel expose its
supported range directly.
- ETHTOOL_A_MM_TX_MIN_FRAG_SIZE: the standard managed object is called
aMACMergeAddFragSize, and expresses the "additional" fragment size
(on top of ETH_ZLEN), whereas this expresses the absolute value of the
fragment size.
- ETHTOOL_A_MM_RX_MIN_FRAG_SIZE: there doesn't appear to exist a managed
object mandated by the standard, but user space clearly needs to know
what is the minimum supported fragment size of our local receiver,
since LLDP must advertise a value no lower than that.
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add new rewrite table and all the required functions, offload hooks and
bookkeeping for maintaining it. The rewrite table reuses the app struct,
and the entire set of app selectors. As such, some bookeeping code can
be shared between the rewrite- and the APP table.
New functions for getting, setting and deleting entries has been added.
Apart from operating on the rewrite list, these functions do not emit a
DCB_APP_EVENT when the list os modified. The new dcb_getrewr does a
lookup based on selector and priority and returns the protocol, so that
mappings from priority to protocol, for a given selector and ifindex is
obtained.
Also, a new nested attribute has been added, that encapsulates one or
more app structs. This attribute is used to distinguish the two tables.
The dcb_lock used for the APP table is reused for the rewrite table.
Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
We use station's MLD address to report disconnection of MLD station.
Update the documentation in multiple places to indicate this.
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
Link: https://lore.kernel.org/r/20221206080226.1702646-4-quic_vjakkam@quicinc.com
[update commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Currently, maximum KCK key length supported for GTK rekey offload is 24
bytes but with some newer AKMs the KCK key length can be 32 bytes. e.g.,
00-0F-AC:24 AKM suite with SAE finite cyclic group 21. Add support to
allow 32 bytes KCK keys in GTK rekey offload.
Signed-off-by: Shivani Baranwal <quic_shivbara@quicinc.com>
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
Link: https://lore.kernel.org/r/20221206143715.1802987-3-quic_vjakkam@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Introduce NFT_MSG_DESTROY* message type. The destroy operation performs a
delete operation but ignoring the ENOENT errors.
This is useful for the transaction semantics, where failing to delete an
object which does not exist results in aborting the transaction.
This new command allows the transaction to proceed in case the object
does not exist.
Signed-off-by: Fernando Fernandez Mancera <ffmancera@riseup.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
We will report extack message if there is an error via netlink_ack(). But
if the rule is not to be exclusively executed by the hardware, extack is not
passed along and offloading failures don't get logged.
In commit 81c7288b170a ("sched: cls: enable verbose logging") Marcelo
made cls could log verbose info for offloading failures, which helps
improving Open vSwitch debuggability when using flower offloading.
It would also be helpful if userspace monitor tools, like "tc monitor",
could log this kind of message, as it doesn't require vswitchd log level
adjusment. Let's add a new tc attributes to report the extack message so
the monitor program could receive the failures. e.g.
# tc monitor
added chain dev enp3s0f1np1 parent ffff: chain 0
added filter dev enp3s0f1np1 ingress protocol all pref 49152 flower chain 0 handle 0x1
ct_state +trk+new
not_in_hw
action order 1: gact action drop
random type none pass val 0
index 1 ref 1 bind 1
Warning: mlx5_core: matching on ct_state +new isn't supported.
In this patch I only report the extack message on add/del operations.
It doesn't look like we need to report the extack message on get/dump
operations.
Note this message not only reporte to multicast groups, it could also
be reported unicast, which may affect the current usersapce tool's behaivor.
Suggested-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Link: https://lore.kernel.org/r/20230113034353.2766735-1-liuhangbin@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Add ipip6 and ip6ip decap support for bpf_skb_adjust_room().
Main use case is for using cls_bpf on ingress hook to decapsulate
IPv4 over IPv6 and IPv6 over IPv4 tunnel packets.
Add two new flags BPF_F_ADJ_ROOM_DECAP_L3_IPV{4,6} to indicate the
new IP header version after decapsulating the outer IP header.
Suggested-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: Ziyang Xuan <william.xuanziyang@huawei.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/b268ec7f0ff9431f4f43b1b40ab856ebb28cb4e1.1673574419.git.william.xuanziyang@huawei.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
- Fix PAGE_TABLE_CHECK failures on hugepage splitting path
- Fix PSCI encoding of MEM_PROTECT_RANGE function in UAPI header
- Fix NULL deref when accessing debugfs node if PSCI is not present
- Fix MTE core dumping when VMA list is being updated concurrently
- Fix SME signal frame handling when SVE is not implemented by the CPU
- Fix asm constraints for cmpxchg_double() to hazard both words
- Fix build failure with stack tracer and older versions of Clang
- Bring back workaround for Cortex-A715 erratum 2645198
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Here's a sizeable batch of Friday the 13th arm64 fixes for -rc4. What
could possibly go wrong?
The obvious reason we have so much here is because of the holiday
season right after the merge window, but we've also brought back an
erratum workaround that was previously dropped at the last minute and
there's an MTE coredumping fix that strays outside of the arch/arm64
directory.
Summary:
- Fix PAGE_TABLE_CHECK failures on hugepage splitting path
- Fix PSCI encoding of MEM_PROTECT_RANGE function in UAPI header
- Fix NULL deref when accessing debugfs node if PSCI is not present
- Fix MTE core dumping when VMA list is being updated concurrently
- Fix SME signal frame handling when SVE is not implemented by the
CPU
- Fix asm constraints for cmpxchg_double() to hazard both words
- Fix build failure with stack tracer and older versions of Clang
- Bring back workaround for Cortex-A715 erratum 2645198"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Fix build with CC=clang, CONFIG_FTRACE=y and CONFIG_STACK_TRACER=y
arm64/mm: Define dummy pud_user_exec() when using 2-level page-table
arm64: errata: Workaround possible Cortex-A715 [ESR|FAR]_ELx corruption
firmware/psci: Don't register with debugfs if PSCI isn't available
firmware/psci: Fix MEM_PROTECT_RANGE function numbers
arm64/signal: Always allocate SVE signal frames on SME only systems
arm64/signal: Always accept SVE signal frames on SME only systems
arm64/sme: Fix context switch for SME only systems
arm64: cmpxchg_double*: hazard against entire exchange variable
arm64/uprobes: change the uprobe_opcode_t typedef to fix the sparse warning
arm64: mte: Avoid the racy walk of the vma list during core dump
elfcore: Add a cprm parameter to elf_core_extra_{phdrs,data_size}
arm64: mte: Fix double-freeing of the temporary tag storage during coredump
arm64: ptrace: Use ARM64_SME to guard the SME register enumerations
arm64/mm: add pud_user_exec() check in pud_user_accessible_page()
arm64/mm: fix incorrect file_map_count for invalid pmd
Add the following ethtool tx aggregation parameters:
ETHTOOL_A_COALESCE_TX_AGGR_MAX_BYTES
Maximum size in bytes of a tx aggregated block of frames.
ETHTOOL_A_COALESCE_TX_AGGR_MAX_FRAMES
Maximum number of frames that can be aggregated into a block.
ETHTOOL_A_COALESCE_TX_AGGR_TIME_USECS
Time in usecs after the first packet arrival in an aggregated
block for the block to be sent.
Signed-off-by: Daniele Palmas <dnlplm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/usb/r8152.c
be53771c87f4 ("r8152: add vendor/device ID pair for Microsoft Devkit")
ec51fbd1b8a2 ("r8152: add USB device driver for config selection")
https://lore.kernel.org/all/20230113113339.658c4723@canb.auug.org.au/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This patch adds the link modes for the IEEE 802.3cg Clause 147 10BASE-T1S
Ethernet PHY. According to the specifications, the 10BASE-T1S supports
Point-To-Point Full-Duplex, Point-To-Point Half-Duplex and/or
Point-To-Multipoint (AKA Multi-Drop) Half-Duplex operations.
Signed-off-by: Piergiorgio Beruto <piergiorgio.beruto@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Add support for configuring the PLCA Reconciliation Sublayer on
multi-drop PHYs that support IEEE802.3cg-2019 Clause 148 (e.g.,
10BASE-T1S). This patch adds the appropriate netlink interface
to ethtool.
Signed-off-by: Piergiorgio Beruto <piergiorgio.beruto@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Zero-length arrays are deprecated[1]. Replace struct ethtool_rxnfc's
"rule_locs" 0-length array with a flexible array. Detected with GCC 13,
using -fstrict-flex-arrays=3:
net/ethtool/common.c: In function 'ethtool_get_max_rxnfc_channel':
net/ethtool/common.c:558:55: warning: array subscript i is outside array bounds of '__u32[0]' {aka 'unsigned int[]'} [-Warray-bounds=]
558 | .fs.location = info->rule_locs[i],
| ~~~~~~~~~~~~~~~^~~
In file included from include/linux/ethtool.h:19,
from include/uapi/linux/ethtool_netlink.h:12,
from include/linux/ethtool_netlink.h:6,
from net/ethtool/common.c:3:
include/uapi/linux/ethtool.h:1186:41: note: while referencing
'rule_locs'
1186 | __u32 rule_locs[0];
| ^~~~~~~~~
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: kernel test robot <lkp@intel.com>
Cc: Oleksij Rempel <linux@rempel-privat.de>
Cc: Sean Anderson <sean.anderson@seco.com>
Cc: Alexandru Tachici <alexandru.tachici@analog.com>
Cc: Amit Cohen <amcohen@nvidia.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Vincent Mailhol <mailhol.vincent@wanadoo.fr>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20230106042844.give.885-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Zero-length arrays are deprecated[1]. Replace struct ipv6_rpl_sr_hdr's
"segments" union of 0-length arrays with flexible arrays. Detected with
GCC 13, using -fstrict-flex-arrays=3:
In function 'rpl_validate_srh',
inlined from 'rpl_build_state' at ../net/ipv6/rpl_iptunnel.c:96:7:
../net/ipv6/rpl_iptunnel.c:60:28: warning: array subscript <unknown> is outside array bounds of 'struct in6_addr[0]' [-Warray-bounds=]
60 | if (ipv6_addr_type(&srh->rpl_segaddr[srh->segments_left - 1]) &
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from ../include/net/rpl.h:12,
from ../net/ipv6/rpl_iptunnel.c:13:
../include/uapi/linux/rpl.h: In function 'rpl_build_state':
../include/uapi/linux/rpl.h:40:33: note: while referencing 'addr'
40 | struct in6_addr addr[0];
| ^~~~
[1] https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20230105221533.never.711-kees@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'block-2023-01-06' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
"The big change here is obviously the revert of the pktcdvd driver
removal. Outside of that, just minor tweaks. In detail:
- Re-instate the pktcdvd driver, which necessitates adding back
bio_copy_data_iter() and the fops->devnode() hook for now (me)
- Fix for splitting of a bio marked as NOWAIT, causing either nowait
reads or writes to error with EAGAIN even if parts of the IO
completed (me)
- Fix for ublk, punting management commands to io-wq as they can all
easily block for extended periods of time (Ming)
- Removal of SRCU dependency for the block layer (Paul)"
* tag 'block-2023-01-06' of git://git.kernel.dk/linux:
block: Remove "select SRCU"
Revert "pktcdvd: remove driver."
Revert "block: remove devnode callback from struct block_device_operations"
Revert "block: bio_copy_data_iter"
ublk: honor IO_URING_F_NONBLOCK for handling control command
block: don't allow splitting of a REQ_NOWAIT bio
block: handle bio_split_to_limits() NULL return
PSCI v1.1 offers 32-bit and 64-bit variants of the MEM_PROTECT_RANGE
call using function identifier 20.
Fix the incorrect definitions of the MEM_PROTECT_CHECK_RANGE calls in
the PSCI UAPI header.
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Fixes: 3137f2e60098 ("firmware/psci: Add debugfs support to ease debugging")
Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Link: https://lore.kernel.org/r/20221125101826.22404-1-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
Current release - regressions:
- bpf: fix nullness propagation for reg to reg comparisons,
avoid null-deref
- inet: control sockets should not use current thread task_frag
- bpf: always use maximal size for copy_array()
- eth: bnxt_en: don't link netdev to a devlink port for VFs
Current release - new code bugs:
- rxrpc: fix a couple of potential use-after-frees
- netfilter: conntrack: fix IPv6 exthdr error check
- wifi: iwlwifi: fw: skip PPAG for JF, avoid FW crashes
- eth: dsa: qca8k: various fixes for the in-band register access
- eth: nfp: fix schedule in atomic context when sync mc address
- eth: renesas: rswitch: fix getting mac address from device tree
- mobile: ipa: use proper endpoint mask for suspend
Previous releases - regressions:
- tcp: add TIME_WAIT sockets in bhash2, fix regression caught
by Jiri / python tests
- net: tc: don't intepret cls results when asked to drop, fix
oob-access
- vrf: determine the dst using the original ifindex for multicast
- eth: bnxt_en:
- fix XDP RX path if BPF adjusted packet length
- fix HDS (header placement) and jumbo thresholds for RX packets
- eth: ice: xsk: do not use xdp_return_frame() on tx_buf->raw_buf,
avoid memory corruptions
Previous releases - always broken:
- ulp: prevent ULP without clone op from entering the LISTEN status
- veth: fix race with AF_XDP exposing old or uninitialized descriptors
- bpf:
- pull before calling skb_postpull_rcsum() (fix checksum support
and avoid a WARN())
- fix panic due to wrong pageattr of im->image (when livepatch
and kretfunc coexist)
- keep a reference to the mm, in case the task is dead
- mptcp: fix deadlock in fastopen error path
- netfilter:
- nf_tables: perform type checking for existing sets
- nf_tables: honor set timeout and garbage collection updates
- ipset: fix hash:net,port,net hang with /0 subnet
- ipset: avoid hung task warning when adding/deleting entries
- selftests: net:
- fix cmsg_so_mark.sh test hang on non-x86 systems
- fix the arp_ndisc_evict_nocarrier test for IPv6
- usb: rndis_host: secure rndis_query check against int overflow
- eth: r8169: fix dmar pte write access during suspend/resume with WOL
- eth: lan966x: fix configuration of the PCS
- eth: sparx5: fix reading of the MAC address
- eth: qed: allow sleep in qed_mcp_trace_dump()
- eth: hns3:
- fix interrupts re-initialization after VF FLR
- fix handling of promisc when MAC addr table gets full
- refine the handling for VF heartbeat
- eth: mlx5:
- properly handle ingress QinQ-tagged packets on VST
- fix io_eq_size and event_eq_size params validation on big endian
- fix RoCE setting at HCA level if not supported at all
- don't turn CQE compression on by default for IPoIB
- eth: ena:
- fix toeplitz initial hash key value
- account for the number of XDP-processed bytes in interface stats
- fix rx_copybreak value update
Misc:
- ethtool: harden phy stat handling against buggy drivers
- docs: netdev: convert maintainer's doc from FAQ to a normal document
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf, wifi, and netfilter.
Current release - regressions:
- bpf: fix nullness propagation for reg to reg comparisons, avoid
null-deref
- inet: control sockets should not use current thread task_frag
- bpf: always use maximal size for copy_array()
- eth: bnxt_en: don't link netdev to a devlink port for VFs
Current release - new code bugs:
- rxrpc: fix a couple of potential use-after-frees
- netfilter: conntrack: fix IPv6 exthdr error check
- wifi: iwlwifi: fw: skip PPAG for JF, avoid FW crashes
- eth: dsa: qca8k: various fixes for the in-band register access
- eth: nfp: fix schedule in atomic context when sync mc address
- eth: renesas: rswitch: fix getting mac address from device tree
- mobile: ipa: use proper endpoint mask for suspend
Previous releases - regressions:
- tcp: add TIME_WAIT sockets in bhash2, fix regression caught by
Jiri / python tests
- net: tc: don't intepret cls results when asked to drop, fix
oob-access
- vrf: determine the dst using the original ifindex for multicast
- eth: bnxt_en:
- fix XDP RX path if BPF adjusted packet length
- fix HDS (header placement) and jumbo thresholds for RX packets
- eth: ice: xsk: do not use xdp_return_frame() on tx_buf->raw_buf,
avoid memory corruptions
Previous releases - always broken:
- ulp: prevent ULP without clone op from entering the LISTEN status
- veth: fix race with AF_XDP exposing old or uninitialized
descriptors
- bpf:
- pull before calling skb_postpull_rcsum() (fix checksum support
and avoid a WARN())
- fix panic due to wrong pageattr of im->image (when livepatch and
kretfunc coexist)
- keep a reference to the mm, in case the task is dead
- mptcp: fix deadlock in fastopen error path
- netfilter:
- nf_tables: perform type checking for existing sets
- nf_tables: honor set timeout and garbage collection updates
- ipset: fix hash:net,port,net hang with /0 subnet
- ipset: avoid hung task warning when adding/deleting entries
- selftests: net:
- fix cmsg_so_mark.sh test hang on non-x86 systems
- fix the arp_ndisc_evict_nocarrier test for IPv6
- usb: rndis_host: secure rndis_query check against int overflow
- eth: r8169: fix dmar pte write access during suspend/resume with
WOL
- eth: lan966x: fix configuration of the PCS
- eth: sparx5: fix reading of the MAC address
- eth: qed: allow sleep in qed_mcp_trace_dump()
- eth: hns3:
- fix interrupts re-initialization after VF FLR
- fix handling of promisc when MAC addr table gets full
- refine the handling for VF heartbeat
- eth: mlx5:
- properly handle ingress QinQ-tagged packets on VST
- fix io_eq_size and event_eq_size params validation on big endian
- fix RoCE setting at HCA level if not supported at all
- don't turn CQE compression on by default for IPoIB
- eth: ena:
- fix toeplitz initial hash key value
- account for the number of XDP-processed bytes in interface stats
- fix rx_copybreak value update
Misc:
- ethtool: harden phy stat handling against buggy drivers
- docs: netdev: convert maintainer's doc from FAQ to a normal
document"
* tag 'net-6.2-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (112 commits)
caif: fix memory leak in cfctrl_linkup_request()
inet: control sockets should not use current thread task_frag
net/ulp: prevent ULP without clone op from entering the LISTEN status
qed: allow sleep in qed_mcp_trace_dump()
MAINTAINERS: Update maintainers for ptp_vmw driver
usb: rndis_host: Secure rndis_query check against int overflow
net: dpaa: Fix dtsec check for PCS availability
octeontx2-pf: Fix lmtst ID used in aura free
drivers/net/bonding/bond_3ad: return when there's no aggregator
netfilter: ipset: Rework long task execution when adding/deleting entries
netfilter: ipset: fix hash:net,port,net hang with /0 subnet
net: sparx5: Fix reading of the MAC address
vxlan: Fix memory leaks in error path
net: sched: htb: fix htb_classify() kernel-doc
net: sched: cbq: dont intepret cls results when asked to drop
net: sched: atm: dont intepret cls results when asked to drop
dt-bindings: net: marvell,orion-mdio: Fix examples
dt-bindings: net: sun8i-emac: Add phy-supply property
net: ipa: use proper endpoint mask for suspend
selftests: net: return non-zero for failures reported in arp_ndisc_evict_nocarrier
...
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Merge tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Daniel Borkmann says:
====================
bpf-next 2023-01-04
We've added 45 non-merge commits during the last 21 day(s) which contain
a total of 50 files changed, 1454 insertions(+), 375 deletions(-).
The main changes are:
1) Fixes, improvements and refactoring of parts of BPF verifier's
state equivalence checks, from Andrii Nakryiko.
2) Fix a few corner cases in libbpf's BTF-to-C converter in particular
around padding handling and enums, also from Andrii Nakryiko.
3) Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better
support decap on GRE tunnel devices not operating in collect metadata,
from Christian Ehrig.
4) Improve x86 JIT's codegen for PROBE_MEM runtime error checks,
from Dave Marchevsky.
5) Remove the need for trace_printk_lock for bpf_trace_printk
and bpf_trace_vprintk helpers, from Jiri Olsa.
6) Add proper documentation for BPF_MAP_TYPE_SOCK{MAP,HASH} maps,
from Maryam Tahhan.
7) Improvements in libbpf's btf_parse_elf error handling, from Changbin Du.
8) Bigger batch of improvements to BPF tracing code samples,
from Daniel T. Lee.
9) Add LoongArch support to libbpf's bpf_tracing helper header,
from Hengqi Chen.
10) Fix a libbpf compiler warning in perf_event_open_probe on arm32,
from Khem Raj.
11) Optimize bpf_local_storage_elem by removing 56 bytes of padding,
from Martin KaFai Lau.
12) Use pkg-config to locate libelf for resolve_btfids build,
from Shen Jiamin.
13) Various libbpf improvements around API documentation and errno
handling, from Xin Liu.
* tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (45 commits)
libbpf: Return -ENODATA for missing btf section
libbpf: Add LoongArch support to bpf_tracing.h
libbpf: Restore errno after pr_warn.
libbpf: Added the description of some API functions
libbpf: Fix invalid return address register in s390
samples/bpf: Use BPF_KSYSCALL macro in syscall tracing programs
samples/bpf: Fix tracex2 by using BPF_KSYSCALL macro
samples/bpf: Change _kern suffix to .bpf with syscall tracing program
samples/bpf: Use vmlinux.h instead of implicit headers in syscall tracing program
samples/bpf: Use kyscall instead of kprobe in syscall tracing program
bpf: rename list_head -> graph_root in field info types
libbpf: fix errno is overwritten after being closed.
bpf: fix regs_exact() logic in regsafe() to remap IDs correctly
bpf: perform byte-by-byte comparison only when necessary in regsafe()
bpf: reject non-exact register type matches in regsafe()
bpf: generalize MAYBE_NULL vs non-MAYBE_NULL rule
bpf: reorganize struct bpf_reg_state fields
bpf: teach refsafe() to take into account ID remapping
bpf: Remove unused field initialization in bpf's ctl_table
selftests/bpf: Add jit probe_mem corner case tests to s390x denylist
...
====================
Link: https://lore.kernel.org/r/20230105000926.31350-1-daniel@iogearbox.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
mostly fixes all over the place, a couple of cleanups.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin:
"Mostly fixes all over the place, a couple of cleanups"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (32 commits)
virtio_blk: Fix signedness bug in virtblk_prep_rq()
vdpa_sim_net: should not drop the multicast/broadcast packet
vdpasim: fix memory leak when freeing IOTLBs
vdpa: conditionally fill max max queue pair for stats
vdpa/vp_vdpa: fix kfree a wrong pointer in vp_vdpa_remove
vduse: Validate vq_num in vduse_validate_config()
tools/virtio: remove smp_read_barrier_depends()
tools/virtio: remove stray characters
vhost_vdpa: fix the crash in unmap a large memory
virtio: Implementing attribute show with sysfs_emit
virtio-crypto: fix memory leak in virtio_crypto_alg_skcipher_close_session()
tools/virtio: Variable type completion
vdpa_sim: fix vringh initialization in vdpasim_queue_ready()
virtio_blk: use UINT_MAX instead of -1U
vhost-vdpa: fix an iotlb memory leak
vhost: fix range used in translate_desc()
vringh: fix range used in iotlb_translate()
vhost/vsock: Fix error handling in vhost_vsock_init()
vdpa_sim: fix possible memory leak in vdpasim_net_init() and vdpasim_blk_init()
tools: Delete the unneeded semicolon after curly braces
...
This reverts commit f40eb99897af665f11858dd7b56edcb62c3f3c67.
There are apparently still users out there of this driver. While we'd
love to remove it to ease the maintenance burden, let's reinstate it
for now until better (userspace) solutions can be developed.
Link: https://lore.kernel.org/lkml/20230104190115.ceglfefco475ev6c@pali/
Reported-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Merge tag 'io_uring-6.2-2022-12-29' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
- Two fixes for mutex grabbing when the task state is != TASK_RUNNING
(me)
- Check for invalid opcode in io_uring_register() a bit earlier, to
avoid going through the quiesce machinery just to return -EINVAL
later in the process (me)
- Fix for the uapi io_uring header, skipping including time_types.h
when necessary (Stefan)
* tag 'io_uring-6.2-2022-12-29' of git://git.kernel.dk/linux:
uapi:io_uring.h: allow linux/time_types.h to be skipped
io_uring: check for valid register opcode earlier
io_uring/cancel: re-grab ctx mutex after finishing wait
io_uring: finish waiting before flushing overflow entries
x86:
* several fixes to nested VMX execution controls
* fixes and clarification to the documentation for Xen emulation
* do not unnecessarily release a pmu event with zero period
* MMU fixes
* fix Coverity warning in kvm_hv_flush_tlb()
selftests:
* fixes for the ucall mechanism in selftests
* other fixes mostly related to compilation with clang
We can merge VDPA_ATTR_VDPA_DEV_SUPPORTED_FEATURES with
VDPA_ATTR_DEV_FEATURES which is functionally equivalent.
While at it, tweak the comment in header file to make
user provioned device features distinguished from those
supported by the parent mgmtdev device: the former of
which can be inherited as a whole from the latter, or
can be a subset of the latter if explicitly specified.
Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com>
Message-Id: <1665422823-18364-1-git-send-email-si-wei.liu@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
These are (uint64_t)-1 magic values are a userspace ABI, allowing the
shared info pages and other enlightenments to be disabled. This isn't
a Xen ABI because Xen doesn't let the guest turn these off except with
the full SHUTDOWN_soft_reset mechanism. Under KVM, the userspace VMM is
expected to handle soft reset, and tear down the kernel parts of the
enlightenments accordingly.
Suggested-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Message-Id: <20221226120320.1125390-5-dwmw2@infradead.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Mostly small bug fixes and small updates. The only things of note is
a qla2xxx fix for crash on hotplug and timeout and the addition of a
user exposed abstraction layer for persistent reservation error return
handling (which necessitates the conversion of nvme.c as well as
SCSI).
Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
"Mostly small bug fixes and small updates.
The only things of note is a qla2xxx fix for crash on hotplug and
timeout and the addition of a user exposed abstraction layer for
persistent reservation error return handling (which necessitates the
conversion of nvme.c as well as SCSI)"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: qla2xxx: Fix crash when I/O abort times out
nvme: Convert NVMe errors to PR errors
scsi: sd: Convert SCSI errors to PR errors
scsi: core: Rename status_byte to sg_status_byte
block: Add error codes for common PR failures
scsi: sd: sd_zbc: Trace zone append emulation
scsi: libfc: Include the correct header
There are only three fairly simple patches. The #include
change to linux/swab.h addresses a userspace build issue,
and the change to the mmio tracing logic helps provide
more useful traces.
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Merge tag 'asm-generic-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic updates from Arnd Bergmann:
"There are only three fairly simple patches.
The #include change to linux/swab.h addresses a userspace build issue,
and the change to the mmio tracing logic helps provide more useful
traces"
* tag 'asm-generic-6.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
uapi: Add missing _UAPI prefix to <asm-generic/types.h> include guard
asm-generic/io: Add _RET_IP_ to MMIO trace for more accurate debug info
include/uapi/linux/swab: Fix potentially missing __always_inline
This patch allows to remove TUNNEL_KEY from the tunnel flags bitmap
when using bpf_skb_set_tunnel_key by providing a BPF_F_NO_TUNNEL_KEY
flag. On egress, the resulting tunnel header will not contain a tunnel
key if the protocol and implementation supports it.
At the moment bpf_tunnel_key wants a user to specify a numeric tunnel
key. This will wrap the inner packet into a tunnel header with the key
bit and value set accordingly. This is problematic when using a tunnel
protocol that supports optional tunnel keys and a receiving tunnel
device that is not expecting packets with the key bit set. The receiver
won't decapsulate and drop the packet.
RFC 2890 and RFC 2784 GRE tunnels are examples where this flag is
useful. It allows for generating packets, that can be decapsulated by
a GRE tunnel device not operating in collect metadata mode or not
expecting the key bit set.
Signed-off-by: Christian Ehrig <cehrig@cloudflare.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Jakub Sitnicki <jakub@cloudflare.com>
Acked-by: Stanislav Fomichev <sdf@google.com>
Link: https://lore.kernel.org/bpf/20221218051734.31411-1-cehrig@cloudflare.com
New support:
- Qualcomm SDM670, SM6115 and SM6375 GPI controller support
- Ingenic JZ4755 dmaengine support
- Removal of iop-adma driver
Updates:
- Tegra support for dma-channel-mask
- at_hdmac cleanup and virt-chan support for this driver
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Merge tag 'dmaengine-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine
Pull dmaengine updates from Vinod Koul:
"New support:
- Qualcomm SDM670, SM6115 and SM6375 GPI controller support
- Ingenic JZ4755 dmaengine support
- Removal of iop-adma driver
Updates:
- Tegra support for dma-channel-mask
- at_hdmac cleanup and virt-chan support for this driver"
* tag 'dmaengine-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine: (46 commits)
dmaengine: Revert "dmaengine: remove s3c24xx driver"
dmaengine: tegra: Add support for dma-channel-mask
dt-bindings: dmaengine: Add dma-channel-mask to Tegra GPCDMA
dmaengine: idxd: Remove linux/msi.h include
dt-bindings: dmaengine: qcom: gpi: add compatible for SM6375
dmaengine: idxd: Fix crc_val field for completion record
dmaengine: at_hdmac: Convert driver to use virt-dma
dmaengine: at_hdmac: Remove unused member of at_dma_chan
dmaengine: at_hdmac: Rename "chan_common" to "dma_chan"
dmaengine: at_hdmac: Rename "dma_common" to "dma_device"
dmaengine: at_hdmac: Use bitfield access macros
dmaengine: at_hdmac: Keep register definitions and structures private to at_hdmac.c
dmaengine: at_hdmac: Set include entries in alphabetic order
dmaengine: at_hdmac: Use pm_ptr()
dmaengine: at_hdmac: Use devm_clk_get()
dmaengine: at_hdmac: Use devm_platform_ioremap_resource
dmaengine: at_hdmac: Use devm_kzalloc() and struct_size()
dmaengine: at_hdmac: Introduce atc_get_llis_residue()
dmaengine: at_hdmac: s/atc_get_bytes_left/atc_get_residue
dmaengine: at_hdmac: Pass residue by address to avoid unnecessary implicit casts
...
* misc. small fixes
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Merge tag 'hsi-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi
Pull HSI updates from Sebastian Reichel:
- misc small fixes
* tag 'hsi-for-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
HSI: omap_ssi_core: Fix error handling in ssi_init()
headers: Remove some left-over license text in include/uapi/linux/hsi/
HSI: omap_ssi_core: fix possible memory leak in ssi_probe()
HSI: omap_ssi_core: fix unbalanced pm_runtime_disable()
HSI: ssi_protocol: Fix return type of ssip_pn_xmit()
Here is the large set of char/misc and other driver subsystem changes
for 6.2-rc1. Nothing earth-shattering in here at all, just a lot of new
driver development and minor fixes. Highlights include:
- fastrpc driver updates
- iio new drivers and updates
- habanalabs driver updates for new hardware and features
- slimbus driver updates
- speakup module parameters added to aid in boot time configuration
- i2c probe_new conversions for lots of different drivers
- other small driver fixes and additions
One semi-interesting change in here is the increase of the number of
misc dynamic minors available to 1048448 to handle new huge-cpu systems.
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH:
"Here is the large set of char/misc and other driver subsystem changes
for 6.2-rc1. Nothing earth-shattering in here at all, just a lot of
new driver development and minor fixes.
Highlights include:
- fastrpc driver updates
- iio new drivers and updates
- habanalabs driver updates for new hardware and features
- slimbus driver updates
- speakup module parameters added to aid in boot time configuration
- i2c probe_new conversions for lots of different drivers
- other small driver fixes and additions
One semi-interesting change in here is the increase of the number of
misc dynamic minors available to 1048448 to handle new huge-cpu
systems.
All of these have been in linux-next for a while with no reported
problems"
* tag 'char-misc-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (521 commits)
extcon: usbc-tusb320: Convert to i2c's .probe_new()
extcon: rt8973: Convert to i2c's .probe_new()
extcon: fsa9480: Convert to i2c's .probe_new()
extcon: max77843: Replace irqchip mask_invert with unmask_base
chardev: fix error handling in cdev_device_add()
mcb: mcb-parse: fix error handing in chameleon_parse_gdd()
drivers: mcb: fix resource leak in mcb_probe()
coresight: etm4x: fix repeated words in comments
coresight: cti: Fix null pointer error on CTI init before ETM
coresight: trbe: remove cpuhp instance node before remove cpuhp state
counter: stm32-lptimer-cnt: fix the check on arr and cmp registers update
misc: fastrpc: Add dma_mask to fastrpc_channel_ctx
misc: fastrpc: Add mmap request assigning for static PD pool
misc: fastrpc: Safekeep mmaps on interrupted invoke
misc: fastrpc: Add support for audiopd
misc: fastrpc: Rework fastrpc_req_munmap
misc: fastrpc: Use fastrpc_map_put in fastrpc_map_create on fail
misc: fastrpc: Add fastrpc_remote_heap_alloc
misc: fastrpc: Add reserved mem support
misc: fastrpc: Rename audio protection domain to root
...
Here is the "big" set of tty/serial driver changes for 6.2-rc1.
As in previous kernel releases, nothing big here at all, just some small
incremental serial/tty layer cleanups and some individual driver
additions and fixes. Highlights are:
- serial helper macros from Jiri Slaby to reduce the amount of
duplicated code in serial drivers
- api cleanups and consolidations from Ilpo Järvinen in lots of serial
drivers
- the usual set of n_gsm fixes from Daniel Starke as that code gets
exercised more
- TIOCSTI is finally able to be disabled if requested (security
hardening feature from Kees Cook)
- fsl_lpuart driver fixes and features added
- other small serial driver additions and fixes
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull tty/serial driver updates from Greg KH:
"Here is the "big" set of tty/serial driver changes for 6.2-rc1.
As in previous kernel releases, nothing big here at all, just some
small incremental serial/tty layer cleanups and some individual driver
additions and fixes. Highlights are:
- serial helper macros from Jiri Slaby to reduce the amount of
duplicated code in serial drivers
- api cleanups and consolidations from Ilpo Järvinen in lots of
serial drivers
- the usual set of n_gsm fixes from Daniel Starke as that code gets
exercised more
- TIOCSTI is finally able to be disabled if requested (security
hardening feature from Kees Cook)
- fsl_lpuart driver fixes and features added
- other small serial driver additions and fixes
All of these have been in linux-next for a while with no reported
problems"
* tag 'tty-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (97 commits)
serial: atmel: don't stop the transmitter when doing PIO
serial: atmel: cleanup atmel_start+stop_tx()
tty: serial: fsl_lpuart: switch to new dmaengine_terminate_* API
serial: sunsab: Fix error handling in sunsab_init()
serial: altera_uart: fix locking in polling mode
serial: pch: Fix PCI device refcount leak in pch_request_dma()
tty: serial: fsl_lpuart: Use pm_ptr() to avoid need to make pm __maybe_unused
tty: serial: fsl_lpuart: Add runtime pm support
tty: serial: fsl_lpuart: enable wakeup source for lpuart
serdev: Replace poll loop by readx_poll_timeout() macro
tty: synclink_gt: unwind actions in error path of net device open
serial: stm32: move dma_request_chan() before clk_prepare_enable()
dt-bindings: serial: xlnx,opb-uartlite: Drop 'contains' from 'xlnx,use-parity'
serial: pl011: Do not clear RX FIFO & RX interrupt in unthrottle.
serial: amba-pl011: avoid SBSA UART accessing DMACR register
tty: serial: altera_jtaguart: remove struct altera_jtaguart
tty: serial: altera_jtaguart: use uart_port::read_status_mask
tty: serial: altera_jtaguart: remove unused altera_jtaguart::sigs
tty: serial: altera_jtaguart: remove flag from altera_jtaguart_rx_chars()
n_tty: Rename tail to old_tail in n_tty_read()
...
Here is the large set of USB and Thunderbolt driver changes for 6.2-rc1.
Overall, thanks to the removal of a driver, more lines were removed than
added, a nice change. Highlights include:
- removal of the sisusbvga driver that was not used by anyone anymore
- minor thunderbolt driver changes and tweaks
- chipidea driver updates
- usual set of typec driver features and hardware support added
- musb minor driver fixes
- fotg210 driver fixes, bringing that hardware back from the "dead"
- minor dwc3 driver updates
- addition, and then removal, of a list.h helper function for many USB
and other subsystem drivers, that ended up breaking the build. That
will come back for 6.3-rc1, it missed this merge window.
- usual xhci updates and enhancements
- usb-serial driver updates and support for new devices
- other minor USB driver updates
All of these have been in linux-next for a while with no reported
problems.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB and Thunderbolt driver updates from Greg KH:
"Here is the large set of USB and Thunderbolt driver changes for
6.2-rc1. Overall, thanks to the removal of a driver, more lines were
removed than added, a nice change. Highlights include:
- removal of the sisusbvga driver that was not used by anyone anymore
- minor thunderbolt driver changes and tweaks
- chipidea driver updates
- usual set of typec driver features and hardware support added
- musb minor driver fixes
- fotg210 driver fixes, bringing that hardware back from the "dead"
- minor dwc3 driver updates
- addition, and then removal, of a list.h helper function for many
USB and other subsystem drivers, that ended up breaking the build.
That will come back for 6.3-rc1, it missed this merge window.
- usual xhci updates and enhancements
- usb-serial driver updates and support for new devices
- other minor USB driver updates
All of these have been in linux-next for a while with no reported
problems"
* tag 'usb-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (153 commits)
usb: gadget: uvc: Rename bmInterfaceFlags -> bmInterlaceFlags
usb: dwc2: power on/off phy for peripheral mode in dual-role mode
usb: dwc2: disable lpm feature on Rockchip SoCs
dt-bindings: usb: mtk-xhci: add support for mt7986
usb: dwc3: core: defer probe on ulpi_read_id timeout
usb: ulpi: defer ulpi_register on ulpi_read_id timeout
usb: misc: onboard_usb_hub: add Genesys Logic GL850G hub support
dt-bindings: usb: Add binding for Genesys Logic GL850G hub controller
dt-bindings: vendor-prefixes: add Genesys Logic
usb: fotg210-udc: fix potential memory leak in fotg210_udc_probe()
usb: typec: tipd: Set mode of operation for USB Type-C connector
usb: gadget: udc: drop obsolete dependencies on COMPILE_TEST
usb: musb: remove extra check in musb_gadget_vbus_draw
usb: gadget: uvc: Prevent buffer overflow in setup handler
usb: dwc3: qcom: Fix memory leak in dwc3_qcom_interconnect_init
usb: typec: wusb3801: fix fwnode refcount leak in wusb3801_probe()
usb: storage: Add check for kcalloc
USB: sisusbvga: use module_usb_driver()
USB: sisusbvga: rename sisusb.c to sisusbvga.c
USB: sisusbvga: remove console support
...
- Replace deprecated git://github.com link in MAINTAINERS. (Palmer Dabbelt)
- Simplify vfio/mlx5 with module_pci_driver() helper. (Shang XiaoJing)
- Drop unnecessary buffer from ACPI call. (Rafael Mendonca)
- Correct latent missing include issue in iova-bitmap and fix support
for unaligned bitmaps. Follow-up with better fix through refactor.
(Joao Martins)
- Rework ccw mdev driver to split private data from parent structure,
better aligning with the mdev lifecycle and allowing us to remove
a temporary workaround. (Eric Farman)
- Add an interface to get an estimated migration data size for a device,
allowing userspace to make informed decisions, ex. more accurately
predicting VM downtime. (Yishai Hadas)
- Fix minor typo in vfio/mlx5 array declaration. (Yishai Hadas)
- Simplify module and Kconfig through consolidating SPAPR/EEH code and
config options and folding virqfd module into main vfio module.
(Jason Gunthorpe)
- Fix error path from device_register() across all vfio mdev and sample
drivers. (Alex Williamson)
- Define migration pre-copy interface and implement for vfio/mlx5
devices, allowing portions of the device state to be saved while the
device continues operation, towards reducing the stop-copy state
size. (Jason Gunthorpe, Yishai Hadas, Shay Drory)
- Implement pre-copy for hisi_acc devices. (Shameer Kolothum)
- Fixes to mdpy mdev driver remove path and error path on probe.
(Shang XiaoJing)
- vfio/mlx5 fixes for incorrect return after copy_to_user() fault and
incorrect buffer freeing. (Dan Carpenter)
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Merge tag 'vfio-v6.2-rc1' of https://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Replace deprecated git://github.com link in MAINTAINERS (Palmer
Dabbelt)
- Simplify vfio/mlx5 with module_pci_driver() helper (Shang XiaoJing)
- Drop unnecessary buffer from ACPI call (Rafael Mendonca)
- Correct latent missing include issue in iova-bitmap and fix support
for unaligned bitmaps. Follow-up with better fix through refactor
(Joao Martins)
- Rework ccw mdev driver to split private data from parent structure,
better aligning with the mdev lifecycle and allowing us to remove a
temporary workaround (Eric Farman)
- Add an interface to get an estimated migration data size for a
device, allowing userspace to make informed decisions, ex. more
accurately predicting VM downtime (Yishai Hadas)
- Fix minor typo in vfio/mlx5 array declaration (Yishai Hadas)
- Simplify module and Kconfig through consolidating SPAPR/EEH code and
config options and folding virqfd module into main vfio module (Jason
Gunthorpe)
- Fix error path from device_register() across all vfio mdev and sample
drivers (Alex Williamson)
- Define migration pre-copy interface and implement for vfio/mlx5
devices, allowing portions of the device state to be saved while the
device continues operation, towards reducing the stop-copy state size
(Jason Gunthorpe, Yishai Hadas, Shay Drory)
- Implement pre-copy for hisi_acc devices (Shameer Kolothum)
- Fixes to mdpy mdev driver remove path and error path on probe (Shang
XiaoJing)
- vfio/mlx5 fixes for incorrect return after copy_to_user() fault and
incorrect buffer freeing (Dan Carpenter)
* tag 'vfio-v6.2-rc1' of https://github.com/awilliam/linux-vfio: (42 commits)
vfio/mlx5: error pointer dereference in error handling
vfio/mlx5: fix error code in mlx5vf_precopy_ioctl()
samples: vfio-mdev: Fix missing pci_disable_device() in mdpy_fb_probe()
hisi_acc_vfio_pci: Enable PRE_COPY flag
hisi_acc_vfio_pci: Move the dev compatibility tests for early check
hisi_acc_vfio_pci: Introduce support for PRE_COPY state transitions
hisi_acc_vfio_pci: Add support for precopy IOCTL
vfio/mlx5: Enable MIGRATION_PRE_COPY flag
vfio/mlx5: Fallback to STOP_COPY upon specific PRE_COPY error
vfio/mlx5: Introduce multiple loads
vfio/mlx5: Consider temporary end of stream as part of PRE_COPY
vfio/mlx5: Introduce vfio precopy ioctl implementation
vfio/mlx5: Introduce SW headers for migration states
vfio/mlx5: Introduce device transitions of PRE_COPY
vfio/mlx5: Refactor to use queue based data chunks
vfio/mlx5: Refactor migration file state
vfio/mlx5: Refactor MKEY usage
vfio/mlx5: Refactor PD usage
vfio/mlx5: Enforce a single SAVE command at a time
vfio: Extend the device migration protocol with PRE_COPY
...
* Enable the per-vcpu dirty-ring tracking mechanism, together with an
option to keep the good old dirty log around for pages that are
dirtied by something other than a vcpu.
* Switch to the relaxed parallel fault handling, using RCU to delay
page table reclaim and giving better performance under load.
* Relax the MTE ABI, allowing a VMM to use the MAP_SHARED mapping option,
which multi-process VMMs such as crosvm rely on (see merge commit 382b5b87a97d:
"Fix a number of issues with MTE, such as races on the tags being
initialised vs the PG_mte_tagged flag as well as the lack of support
for VM_SHARED when KVM is involved. Patches from Catalin Marinas and
Peter Collingbourne").
* Merge the pKVM shadow vcpu state tracking that allows the hypervisor
to have its own view of a vcpu, keeping that state private.
* Add support for the PMUv3p5 architecture revision, bringing support
for 64bit counters on systems that support it, and fix the
no-quite-compliant CHAIN-ed counter support for the machines that
actually exist out there.
* Fix a handful of minor issues around 52bit VA/PA support (64kB pages
only) as a prefix of the oncoming support for 4kB and 16kB pages.
* Pick a small set of documentation and spelling fixes, because no
good merge window would be complete without those.
s390:
* Second batch of the lazy destroy patches
* First batch of KVM changes for kernel virtual != physical address support
* Removal of a unused function
x86:
* Allow compiling out SMM support
* Cleanup and documentation of SMM state save area format
* Preserve interrupt shadow in SMM state save area
* Respond to generic signals during slow page faults
* Fixes and optimizations for the non-executable huge page errata fix.
* Reprogram all performance counters on PMU filter change
* Cleanups to Hyper-V emulation and tests
* Process Hyper-V TLB flushes from a nested guest (i.e. from a L2 guest
running on top of a L1 Hyper-V hypervisor)
* Advertise several new Intel features
* x86 Xen-for-KVM:
** Allow the Xen runstate information to cross a page boundary
** Allow XEN_RUNSTATE_UPDATE flag behaviour to be configured
** Add support for 32-bit guests in SCHEDOP_poll
* Notable x86 fixes and cleanups:
** One-off fixes for various emulation flows (SGX, VMXON, NRIPS=0).
** Reinstate IBPB on emulated VM-Exit that was incorrectly dropped a few
years back when eliminating unnecessary barriers when switching between
vmcs01 and vmcs02.
** Clean up vmread_error_trampoline() to make it more obvious that params
must be passed on the stack, even for x86-64.
** Let userspace set all supported bits in MSR_IA32_FEAT_CTL irrespective
of the current guest CPUID.
** Fudge around a race with TSC refinement that results in KVM incorrectly
thinking a guest needs TSC scaling when running on a CPU with a
constant TSC, but no hardware-enumerated TSC frequency.
** Advertise (on AMD) that the SMM_CTL MSR is not supported
** Remove unnecessary exports
Generic:
* Support for responding to signals during page faults; introduces
new FOLL_INTERRUPTIBLE flag that was reviewed by mm folks
Selftests:
* Fix an inverted check in the access tracking perf test, and restore
support for asserting that there aren't too many idle pages when
running on bare metal.
* Fix build errors that occur in certain setups (unsure exactly what is
unique about the problematic setup) due to glibc overriding
static_assert() to a variant that requires a custom message.
* Introduce actual atomics for clear/set_bit() in selftests
* Add support for pinning vCPUs in dirty_log_perf_test.
* Rename the so called "perf_util" framework to "memstress".
* Add a lightweight psuedo RNG for guest use, and use it to randomize
the access pattern and write vs. read percentage in the memstress tests.
* Add a common ucall implementation; code dedup and pre-work for running
SEV (and beyond) guests in selftests.
* Provide a common constructor and arch hook, which will eventually be
used by x86 to automatically select the right hypercall (AMD vs. Intel).
* A bunch of added/enabled/fixed selftests for ARM64, covering memslots,
breakpoints, stage-2 faults and access tracking.
* x86-specific selftest changes:
** Clean up x86's page table management.
** Clean up and enhance the "smaller maxphyaddr" test, and add a related
test to cover generic emulation failure.
** Clean up the nEPT support checks.
** Add X86_PROPERTY_* framework to retrieve multi-bit CPUID values.
** Fix an ordering issue in the AMX test introduced by recent conversions
to use kvm_cpu_has(), and harden the code to guard against similar bugs
in the future. Anything that tiggers caching of KVM's supported CPUID,
kvm_cpu_has() in this case, effectively hides opt-in XSAVE features if
the caching occurs before the test opts in via prctl().
Documentation:
* Remove deleted ioctls from documentation
* Clean up the docs for the x86 MSR filter.
* Various fixes
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
"ARM64:
- Enable the per-vcpu dirty-ring tracking mechanism, together with an
option to keep the good old dirty log around for pages that are
dirtied by something other than a vcpu.
- Switch to the relaxed parallel fault handling, using RCU to delay
page table reclaim and giving better performance under load.
- Relax the MTE ABI, allowing a VMM to use the MAP_SHARED mapping
option, which multi-process VMMs such as crosvm rely on (see merge
commit 382b5b87a97d: "Fix a number of issues with MTE, such as
races on the tags being initialised vs the PG_mte_tagged flag as
well as the lack of support for VM_SHARED when KVM is involved.
Patches from Catalin Marinas and Peter Collingbourne").
- Merge the pKVM shadow vcpu state tracking that allows the
hypervisor to have its own view of a vcpu, keeping that state
private.
- Add support for the PMUv3p5 architecture revision, bringing support
for 64bit counters on systems that support it, and fix the
no-quite-compliant CHAIN-ed counter support for the machines that
actually exist out there.
- Fix a handful of minor issues around 52bit VA/PA support (64kB
pages only) as a prefix of the oncoming support for 4kB and 16kB
pages.
- Pick a small set of documentation and spelling fixes, because no
good merge window would be complete without those.
s390:
- Second batch of the lazy destroy patches
- First batch of KVM changes for kernel virtual != physical address
support
- Removal of a unused function
x86:
- Allow compiling out SMM support
- Cleanup and documentation of SMM state save area format
- Preserve interrupt shadow in SMM state save area
- Respond to generic signals during slow page faults
- Fixes and optimizations for the non-executable huge page errata
fix.
- Reprogram all performance counters on PMU filter change
- Cleanups to Hyper-V emulation and tests
- Process Hyper-V TLB flushes from a nested guest (i.e. from a L2
guest running on top of a L1 Hyper-V hypervisor)
- Advertise several new Intel features
- x86 Xen-for-KVM:
- Allow the Xen runstate information to cross a page boundary
- Allow XEN_RUNSTATE_UPDATE flag behaviour to be configured
- Add support for 32-bit guests in SCHEDOP_poll
- Notable x86 fixes and cleanups:
- One-off fixes for various emulation flows (SGX, VMXON, NRIPS=0).
- Reinstate IBPB on emulated VM-Exit that was incorrectly dropped
a few years back when eliminating unnecessary barriers when
switching between vmcs01 and vmcs02.
- Clean up vmread_error_trampoline() to make it more obvious that
params must be passed on the stack, even for x86-64.
- Let userspace set all supported bits in MSR_IA32_FEAT_CTL
irrespective of the current guest CPUID.
- Fudge around a race with TSC refinement that results in KVM
incorrectly thinking a guest needs TSC scaling when running on a
CPU with a constant TSC, but no hardware-enumerated TSC
frequency.
- Advertise (on AMD) that the SMM_CTL MSR is not supported
- Remove unnecessary exports
Generic:
- Support for responding to signals during page faults; introduces
new FOLL_INTERRUPTIBLE flag that was reviewed by mm folks
Selftests:
- Fix an inverted check in the access tracking perf test, and restore
support for asserting that there aren't too many idle pages when
running on bare metal.
- Fix build errors that occur in certain setups (unsure exactly what
is unique about the problematic setup) due to glibc overriding
static_assert() to a variant that requires a custom message.
- Introduce actual atomics for clear/set_bit() in selftests
- Add support for pinning vCPUs in dirty_log_perf_test.
- Rename the so called "perf_util" framework to "memstress".
- Add a lightweight psuedo RNG for guest use, and use it to randomize
the access pattern and write vs. read percentage in the memstress
tests.
- Add a common ucall implementation; code dedup and pre-work for
running SEV (and beyond) guests in selftests.
- Provide a common constructor and arch hook, which will eventually
be used by x86 to automatically select the right hypercall (AMD vs.
Intel).
- A bunch of added/enabled/fixed selftests for ARM64, covering
memslots, breakpoints, stage-2 faults and access tracking.
- x86-specific selftest changes:
- Clean up x86's page table management.
- Clean up and enhance the "smaller maxphyaddr" test, and add a
related test to cover generic emulation failure.
- Clean up the nEPT support checks.
- Add X86_PROPERTY_* framework to retrieve multi-bit CPUID values.
- Fix an ordering issue in the AMX test introduced by recent
conversions to use kvm_cpu_has(), and harden the code to guard
against similar bugs in the future. Anything that tiggers
caching of KVM's supported CPUID, kvm_cpu_has() in this case,
effectively hides opt-in XSAVE features if the caching occurs
before the test opts in via prctl().
Documentation:
- Remove deleted ioctls from documentation
- Clean up the docs for the x86 MSR filter.
- Various fixes"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (361 commits)
KVM: x86: Add proper ReST tables for userspace MSR exits/flags
KVM: selftests: Allocate ucall pool from MEM_REGION_DATA
KVM: arm64: selftests: Align VA space allocator with TTBR0
KVM: arm64: Fix benign bug with incorrect use of VA_BITS
KVM: arm64: PMU: Fix period computation for 64bit counters with 32bit overflow
KVM: x86: Advertise that the SMM_CTL MSR is not supported
KVM: x86: remove unnecessary exports
KVM: selftests: Fix spelling mistake "probabalistic" -> "probabilistic"
tools: KVM: selftests: Convert clear/set_bit() to actual atomics
tools: Drop "atomic_" prefix from atomic test_and_set_bit()
tools: Drop conflicting non-atomic test_and_{clear,set}_bit() helpers
KVM: selftests: Use non-atomic clear/set bit helpers in KVM tests
perf tools: Use dedicated non-atomic clear/set bit helpers
tools: Take @bit as an "unsigned long" in {clear,set}_bit() helpers
KVM: arm64: selftests: Enable single-step without a "full" ucall()
KVM: x86: fix APICv/x2AVIC disabled when vm reboot by itself
KVM: Remove stale comment about KVM_REQ_UNHALT
KVM: Add missing arch for KVM_CREATE_DEVICE and KVM_{SET,GET}_DEVICE_ATTR
KVM: Reference to kvm_userspace_memory_region in doc and comments
KVM: Delete all references to removed KVM_SET_MEMORY_ALIAS ioctl
...
In this round, we've added two features: 1) F2FS_IOC_START_ATOMIC_REPLACE and
2) per-block age-based extent cache. 1) is a variant of the previous atomic
write feature which guarantees a per-file atomicity. It would be more efficient
than AtomicFile implementation in Android framework. 2) implements another type
of extent cache in memory which keeps the per-block age in a file, so that block
allocator could split the hot and cold data blocks more accurately.
Enhancement:
- introduce F2FS_IOC_START_ATOMIC_REPLACE
- refactor extent_cache to add a new per-block-age-based extent cache support
- introduce discard_urgent_util, gc_mode, max_ordered_discard sysfs knobs
- add proc entry to show discard_plist info
- optimize iteration over sparse directories
- add barrier mount option
Bug fix
- avoid victim selection from previous victim section
- fix to enable compress for newly created file if extension matches
- set zstd compress level correctly
- initialize locks early in f2fs_fill_super() to fix bugs reported by syzbot
- correct i_size change for atomic writes
- allow to read node block after shutdown
- allow to set compression for inlined file
- fix gc mode when gc_urgent_high_remaining is 1
- should put a page when checking the summary info
Minor fixes and various clean-ups in GC, discard, debugfs, sysfs, and doc.
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Merge tag 'f2fs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this round, we've added two features: F2FS_IOC_START_ATOMIC_REPLACE
and a per-block age-based extent cache.
F2FS_IOC_START_ATOMIC_REPLACE is a variant of the previous atomic
write feature which guarantees a per-file atomicity. It would be more
efficient than AtomicFile implementation in Android framework.
The per-block age-based extent cache implements another type of extent
cache in memory which keeps the per-block age in a file, so that block
allocator could split the hot and cold data blocks more accurately.
Enhancements:
- introduce F2FS_IOC_START_ATOMIC_REPLACE
- refactor extent_cache to add a new per-block-age-based extent cache support
- introduce discard_urgent_util, gc_mode, max_ordered_discard sysfs knobs
- add proc entry to show discard_plist info
- optimize iteration over sparse directories
- add barrier mount option
Bug fixes:
- avoid victim selection from previous victim section
- fix to enable compress for newly created file if extension matches
- set zstd compress level correctly
- initialize locks early in f2fs_fill_super() to fix bugs reported by syzbot
- correct i_size change for atomic writes
- allow to read node block after shutdown
- allow to set compression for inlined file
- fix gc mode when gc_urgent_high_remaining is 1
- should put a page when checking the summary info
Minor fixes and various clean-ups in GC, discard, debugfs, sysfs, and
doc"
* tag 'f2fs-for-6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (63 commits)
f2fs: reset wait_ms to default if any of the victims have been selected
f2fs: fix some format WARNING in debug.c and sysfs.c
f2fs: don't call f2fs_issue_discard_timeout() when discard_cmd_cnt is 0 in f2fs_put_super()
f2fs: fix iostat parameter for discard
f2fs: Fix spelling mistake in label: free_bio_enrty_cache -> free_bio_entry_cache
f2fs: add block_age-based extent cache
f2fs: allocate the extent_cache by default
f2fs: refactor extent_cache to support for read and more
f2fs: remove unnecessary __init_extent_tree
f2fs: move internal functions into extent_cache.c
f2fs: specify extent cache for read explicitly
f2fs: introduce f2fs_is_readonly() for readability
f2fs: remove F2FS_SET_FEATURE() and F2FS_CLEAR_FEATURE() macro
f2fs: do some cleanup for f2fs module init
MAINTAINERS: Add f2fs bug tracker link
f2fs: remove the unused flush argument to change_curseg
f2fs: open code allocate_segment_by_default
f2fs: remove struct segment_allocation default_salloc_ops
f2fs: introduce discard_urgent_util sysfs node
f2fs: define MIN_DISCARD_GRANULARITY macro
...
Jakub Kicinski
Jamie Bainbridge
Jakub Sitnicki
Sriram Yagnaraman
Stanislav Fomichev
Vladimir Oltean
Daniel Machon
Veerendranath Jakkam
Shivani Baranwal
Fernando Fernandez Mancera
Hangbin Liu
Ziyang Xuan
Linus Torvalds
Daniele Palmas
Piergiorgio Beruto
Kees Cook
Will Deacon
Jens Axboe
Paolo Bonzini
Si-Wei Liu
Stefan Metzmacher
David Woodhouse
Rong Tao
Christian Ehrig