Rather than combining the declearation of nosys with the registration
of SYS_syscall, declare syscall(2) and __syscall(2) with the new
SYSMUX type in syscalls.master and declare nosys directly. This
eliminates the last use of syscall aliases in the tree.
Reviewed by: kib, imp
This type is for system call multiplexers (syscall(2), __syscall(2))
that don't have a normal handler and instead are handled in the
machine-dependent syscall code.
Reviewed by: kib, imp
Declare the exit system call normally. This results in the
implementation being named sys_exit rather than sys_sys_exit and
being decalred as returning an int. Infact it does not return
at all because exit1 does not, so add an __unreachable() to let the
compiler know that.
Reviewed by: kib, imp
Declare o<foo>_args rather than reusing the equivalent <foo>_args
structs. Avoiding the addition of a new type isn't worth the
gratutious differences.
Reviewed by: kib, imp
Stop using <foo>_args structs as part of internal kernel APIs. Add
a kern_recvfrom and adjust getsockname and getpeername's equivalent
functions to take individual arguments rather than a uap pointer.
Adopt a convention from CheriBSD that a function interacting with
userspace pointers and sitting between the sys_<foo> syscall and
kern_<foo> implementation is named user_<foo>.
Reviewed by: kib, imp
The socket option handler tries to ensure that the option length is no
larger than some reasonable maximum, and no smaller than sizeof(struct
dn_id). But the loaded option length is stored in an int, which is
converted to an unsigned integer for the comparison with a size_t, so
negative values are not caught and instead get passed to malloc().
Change the code to use a size_t for the buffer size.
Reviewed by: kp
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33133
do_config() processes a buffer of variable-length dummynet commands.
The loop which processes this buffer loads the fixed-length header
before checking whether there are any bytes left to read, so it performs
a 4-byte read past the end of the buffer before terminating.
Restructure the loop to avoid this.
Reported by: Jenkins (KASAN job)
Reviewed by: kp
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33132
This prevents a kernel panic on a damaged ext2 superblock.
PR: 259107
Reported by: Robert Morris <rtm@lcs.mit.edu>
Differential Revision: https://reviews.freebsd.org/D33029
Swap on file requires operational underlying mount, otherwise
swapoff_all() is guaranteed to panic due to the default strategy VOP for
reclaimed vnodes.
Reported and tested by: peterj
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D33147
When swap is turned off due to system shutdown or reboot, ignore the
check. Problem is that the check is not accurate by any means, free
page count can legitimately be low while system still able to page in
everything from the swap. Then, we turn swap off if swapping on
real file or some non-standard geom provider, and typically panic
when system appears to actually need to unavailable page.
For syscall, it is better to be safe than sorry.
Reported and tested by: peterj
Reviewed by: markj
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D33147
HS200 and HS400 speeds can be enabled either with 1.2, or 1.8V signaling voltage.
Because of that we have four cabability flags: MMC_CAP_MMC_HS200_120,
MMC_CAP_MMC_HS200_180, MMC_CAP_MMC_HS400_120, MMC_CAP_MMC_HS400_180.
MMC logic only enables HS200/HS400 mode if both flags are set for the corresponding speed.
Fix that by being more permissive in host timing cap check.
Reviewed by: manu, mw
MFC after: 2 weeks
Obtained from: Semihalf
Sponsored by: Alstom Group
Differential revision: https://reviews.freebsd.org/D33130
Add configuration file to be used by "FreeBSD-<branch>-powerpc64le-LINT"
CI/Jenkins job
Reviewed by: lwhsu
MFC after: 2 days
Sponsored by: Instituto de Pesquisas Eldorado (eldorado.org.br)
Differential Revision: https://reviews.freebsd.org/D33136
When using cached attributes, whether or not the data cache is enabled,
fusefs must update a file's atime whenever it reads from it, so long as
it wasn't mounted with -o noatime. Update it in-kernel, and flush it to
the server on close or during the next setattr operation.
The downside is that close() will now frequently trigger a FUSE_SETATTR
upcall. But if you care about performance, you should be using
-o noatime anyway.
MFC after: 2 weeks
Reviewed by: pfg
Differential Revision: https://reviews.freebsd.org/D33145
When copy_file_range extends a file, it must update the cached file
size.
MFC after: 2 weeks
Reviewed by: rmacklem, pfg
Differential Revision: https://reviews.freebsd.org/D33151
For most of these warnings, the variable is loaded
with data parsed out of an RPC messages. In case
the data is useful in the future, I just marked
these with __unused.
The vga and splash devices are part of the sc(4) system console. vt(4)
uses the vt_vga driver instead, and has some limited splash support
directly in vt_core.c. Leave the sc(4) options in GENERIC/MINIMAL (for
now) but group them together under an sc(4) comment.
Sponsored by: The FreeBSD Foundation
Followup to b8cf1c5c30, remove from MINIMAL in addition to GENERIC.
options VESA / vesa.ko provides VESA Bios Extensions (VBE) support for
the legacy sc(4) console. It is not used by the default console, vt(4).
PR: 253733
Fixes: b8cf1c5c30 ("Remove options VESA from x86 GENERIC")
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Over the past few months we published multiple snapshots for this
Linux derived driver and it has become fairly stable in terms of
minimal local changes needed for new updates.
The current version is based on iwlwifi-next update at
cbaa6aeedee5f92dafa5982eceea2a1f98ce4f7d with the addition of
a hand full of files replaced for FreeBSD.
Given the lack of full license texts on non-local files this is
imported under the draft policy for handling SPDX files (D29226). [1]
Do not yet hook this to the build until the remaining compat code
is all in. Along with the firmware import this will make publishing
the last bits and final testing a lot easier.
Sponsored by: The FreeBSD Foundation
Approved by: core (imp) [1]
MFC after: 10 days
Import the most recent versions of the firmware images for iwlwifi
chipsets supported by the "mvm" sub-driver.
This is based on linux-firmware at f5d519563ac9d2d1f382a817aae5ec5473811ac8.
The license of the firmware matches the previous iwnfw(4) and
iwmfw(4) firmware files and you can find a copy in
sys/contrib/dev/iwlwififw/LICENCE.iwlwifi_firmware .
Add build infrastructure to create the .ko files but do not yet hook
it up to the build until all parts are in the tree.
There is an open issue concerning kldxref that we need to resolve
(D32383).
Sponsored by: The FreeBSD Foundation
MFC after: 10 days
options VESA / vesa.ko provides VESA Bios Extensions (VBE) support for
the legacy sc(4) console. It is not used by the default console, vt(4).
There is a report[1] of an incompatibility between VESA and the Nvidia
driver breaking suspend/resume. Since VESA is not used by the default
configuration anyway, just remove options VESA from GENERIC. The kernel
module is still available and may be loaded by sc(4) users who want to
select a VBE mode.
(Note that vt(4) does not support selecting a VBE mode. The loader can
set a VBE mode and vt(4) will use it via the vt_vbefb driver.)
[1] https://lists.freebsd.org/archives/freebsd-hackers/2021-November/000469.html
PR: 253733
Reported by: Stefan Blachmann [1]
Reviewed by: imp, manu, tsoome
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D33141
The LookupOpen RPC reduces the number of Open RPCs
needed. Unfortunately, it breaks certain software
builds over NFS, so disable it until this is fixed.
The LookupOpen RPC is only used for NFSv4.1/4.2
mounts when the "oneopenown" mount option is
specified, so this should not affect many users.
This allows to stop maintaing the VI_TEXT_REF flag and consequently
opens up fully lockless v_writecount adjustment.
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D33127
The slotid in the Sequence reply must be the same as
in the request. Check that it is the same and log
a console message if it is not, plus set it to the
correct value.
Reported by: rtm@lcs.mit.edu
Tested by: rtm@lcs.mit.edu
PR: 260071
MFC after: 2 weeks
In recent Hyper-V releases on Windows Server 2022, vPCI code does not
initialize the last 4 bit of device bar registers. This behavior change
could result weird problems cuasing PCI code failure when configuring
bars.
Just write all 1's to those bars whose probed values are not the same
as current read ones. This seems to make Hyper-V vPCI and
pci_write_bar() to cooperate correctly on these releases.
Reported by: khng@freebsd.org
Tested by: khng@freebsd.org
MFC after: 2 weeks
Sponsored by: Microsoft
The check for the original len being >= retlen needs to
be done before the "if (nd->nd_repstat == 0)" code, so
that it can be reported as too small.
Reported by: rtm@lcs.mit.edu
Tested by: rtm@lcs.mit.edu
PR: 260046
MFC after: 2 weeks
For a LayoutReturn when using the Flexible File Layout,
error reports may be provided in the request.
Sanity check the size of these error reports and
check that they exist before calling nfsrv_flexlayouterr().
Reported by: rtm@lcs.mit.edu
Tested by: rtm@lcs.mit.edu
PR: 260012
MFC after: 2 weeks
