Cy Schubert [Wed, 29 Aug 2018 06:04:54 +0000 (06:04 +0000)]
Avoid printing extraneous function names when searching man page
database (apropos, man -k). This commit Replaces .SS with .SH,
similar to the man page provided by original heimdal (as in port).
PR: 230573
Submitted by: yuripv@yuripv.net
Approved by: re (rgrimes@)
MFC after: 3 days
John Baldwin [Tue, 28 Aug 2018 21:09:19 +0000 (21:09 +0000)]
Dynamically allocate IRQ ranges on x86.
Previously, x86 used static ranges of IRQ values for different types
of I/O interrupts. Interrupt pins on I/O APICs and 8259A PICs used
IRQ values from 0 to 254. MSI interrupts used a compile-time-defined
range starting at 256, and Xen event channels used a
compile-time-defined range after MSI. Some recent systems have more
than 255 I/O APIC interrupt pins which resulted in those IRQ values
overflowing into the MSI range triggering an assertion failure.
Replace statically assigned ranges with dynamic ranges. Do a single
pass computing the sizes of the IRQ ranges (PICs, MSI, Xen) to
determine the total number of IRQs required. Allocate the interrupt
source and interrupt count arrays dynamically once this pass has
completed. To minimize runtime complexity these arrays are only sized
once during bootup. The PIC range is determined by the PICs present
in the system. The MSI and Xen ranges continue to use a fixed size,
though this does make it possible to turn the MSI range size into a
tunable in the future.
As a result, various places are updated to use dynamic limits instead
of constants. In addition, the vmstat(8) utility has been taught to
understand that some kernels may treat 'intrcnt' and 'intrnames' as
pointers rather than arrays when extracting interrupt stats from a
crashdump. This is determined by the presence (vs absence) of a
global 'nintrcnt' symbol.
This change reverts r189404 which worked around a buggy BIOS which
enumerated an I/O APIC twice (using the same memory mapped address for
both entries but using an IRQ base of 256 for one entry and a valid
IRQ base for the second entry). Making the "base" of MSI IRQ values
dynamic avoids the panic that r189404 worked around, and there may now
be valid I/O APICs with an IRQ base above 256 which this workaround
would incorrectly skip.
If in the future the issue reported in PR 130483 reoccurs, we will
have to add a pass over the I/O APIC entries in the MADT to detect
duplicates using the memory mapped address and use some strategy to
choose the "correct" one.
While here, reserve room in intrcnts for the Hyper-V counters.
Mark Johnston [Tue, 28 Aug 2018 20:21:36 +0000 (20:21 +0000)]
Allow multiple FBT probes to share a tracepoint.
With GNU ifuncs, multiple FBT probes may correspond to the same
instruction. fbt_invop() assumed that this could not happen and
would return after the first probe found in the global FBT hash
table, which might not be the one that's enabled. Fix the problem
on x86 by linking probes that share a tracepoint and having each
linked probe fire when the tracepoint is hit.
PR: 230846
Approved by: re (gjb)
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D16921
Several bug fixes and robustness improvements for the AP boot page
table allocation.
At the time that mp_bootaddress() is called, phys_avail[] array does
not reflect some memory reservations already done, like kernel
placement. Recent changes to DMAP protection which make kernel text
read-only in DMAP revealed this, where on some machines AP boot page
tables selection appears to intersect with the kernel itself.
Fix this by checking the addresses selected using the same algorithm
as bootaddr_rwx(). Also, try to chomp pages for the page table not
only at the start of the contiguous range, but also at the end. This
should improve robustness when the only suitable range is already
consumed by the kernel.
Reported and tested by: Michael Gmelin <freebsd@grem.de>
Reviewed by: jhb
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Approved by: re (gjb)
Differential revision: https://reviews.freebsd.org/D16907
Marcin Wojtas [Tue, 28 Aug 2018 17:09:41 +0000 (17:09 +0000)]
Use ip/ipv6 structures in al_eth only if they are supported
The ip/ipv6 header files are included only if the appropriate definition
exists, but the driver was missing similar checks when using the
ip and ip6_hdr structures.
If the kernel was not built with the INET or INET6 option, the driver
was preventing kernel from being built.
To fix that, the missing ifdef checks were added to the driver.
PR: Bug 230886
Submitted by: Michal Krawczyk <mk@semihalf.com>
Reported by: O. Hartmann
Approved by: re (gjb)
Obtained from: Semihalf
MFC after: 1 week
Sponsored by: Amazon, Inc.
Warner Losh [Tue, 28 Aug 2018 14:46:55 +0000 (14:46 +0000)]
Add big, nasty abandonware tags to this code.
This code works for some people, but hasn't been updated in a long
time. Still allow people to use this code for the moment, but put a
big, nasty obsolete message to inform and encourage people to move to
the port.
Kyle Evans [Mon, 27 Aug 2018 19:34:50 +0000 (19:34 +0000)]
Fix bsdbox build WITH_OFED
hostapd requires libpcap, which links against libmlx5 and libibverbs when
building WITH_OFED. These were not pulled in to bsdbox and most bsdbox
builds were WITHOUT_OFED up until recently, so it was not noticed.
Andrew Gallatin [Mon, 27 Aug 2018 18:13:20 +0000 (18:13 +0000)]
Reject IPv4 SO_REUSEPORT_LB groups when looking up an IPv6 listening socket
Similar to how the IPv4 code will reject an IPv6 LB group,
we must ignore IPv4 LB groups when looking up an IPv6
listening socket. If this is not done, a port only match
may return an IPv4 socket, which causes problems (like
sending IPv6 packets with a hopcount of 0, making them unrouteable).
Thanks to rrs for all the work to diagnose this.
Approved by: re (rgrimes)
Sponsored by: Netflix
Differential Revision: https://reviews.freebsd.org/D16899
Kirk McKusick [Mon, 27 Aug 2018 15:20:42 +0000 (15:20 +0000)]
When doing a -S "safe copy", the install command should do an
fsync(2) system call after copying the installed file to ensure
that it is on stable storage.
PR: 230851
Reviewed by: kib
Approved by: re (marius)
Andrew Turner [Mon, 27 Aug 2018 11:14:49 +0000 (11:14 +0000)]
Ensure we have a large enough stack for the lua loader
Lua has a few places where it allocates a large buffer on the stack. This
is normally fine, except there are a few places where there can be multiple
frames with this buffer. This can cause a stack overflow on some arm64 SoCs.
Fix this by allocating our own stack in loader.efi large enough for these
objects. The required size has been found by tracing how the stack pointer
changes in a virtual machine and found to be no larger than 50kB. A
larger stack is allocated to reduce the likelihood of overflow from future
changes.
Reviewed by: kevans
Approved by: re (kib)
Differential Revision: https://reviews.freebsd.org/D16886
Andrew Turner [Mon, 27 Aug 2018 10:08:27 +0000 (10:08 +0000)]
Use the correct register when storing the arm VFP state.
Previously we have been lucky where the state was already in r0, however
this is not guaranteed. Use the passed in register as the location to
store the upper half of the arm VFP registers rather than relying on it
being r0.
Sean Bruno [Sun, 26 Aug 2018 17:05:43 +0000 (17:05 +0000)]
r338270 had the side effect of no longer installing libmd.so into /lib.
For users who have a seperate zfs mount of /usr or /usr/lib, this will
cause dynamic loading failures when attempting to execute zfs mount on
bootup. E.g. the system won't boot.
Including <src.opts.mk> sets SHLIBDIR, so SHLIBDIR?= has no
effect. The other lib/ Makefiles solve this problem by moving the
SHLIBDIR assignment to before .include <src.opts.mk>.
Colin Percival [Sun, 26 Aug 2018 03:56:54 +0000 (03:56 +0000)]
Disable atkbd0 and atkdbc0 in EC2 AMIs. This has the effect of skipping
the probing and attaching of the PS/2 mouse (not present on EC2) and
keyboard (emulated, but not accessible via EC2).
Note that we disable atkbd0 separately even though during device probing
it shows up as a child of atkbdc0; this is necessary because the device
is also initialized during the early console setup from hammer_time.
This change cuts the kernel boot time on an EC2 c5.4xlarge instance from
7259ms down to 4727 ms.
Alan Cox [Sat, 25 Aug 2018 19:38:08 +0000 (19:38 +0000)]
Eliminate the arena parameter to kmem_free(). Implicitly this corrects an
error in the function hypercall_memfree(), where the wrong arena was being
passed to kmem_free().
Introduce a per-page flag, VPO_KMEM_EXEC, to mark physical pages that are
mapped in kmem with execute permissions. Use this flag to determine which
arena the kmem virtual addresses are returned to.
Eliminate UMA_SLAB_KRWX. The introduction of VPO_KMEM_EXEC makes it
redundant.
Update the nearby comment for UMA_SLAB_KERNEL.
Reviewed by: kib, markj
Discussed with: jeff
Approved by: re (marius)
Differential Revision: https://reviews.freebsd.org/D16845
Michal Meloun [Sat, 25 Aug 2018 16:54:37 +0000 (16:54 +0000)]
Fix wrong offset calculation for R_ARM_TLS_TPOFF32 relocations.
TLS_TCB_SIZE is already accounted in defobj-> tlsoffset so all these symbols
were incorrectly relocated by +8.
Note:
The only consumer (for all binaries on my ARM board) of R_ARM_TLS_TPOFF32
relocation is _ThreadRuneLocale variable. And the incorrectly relocated
ThreadRuneLocale accidentally pointed to zeroed memory before memory layout
change from D16510 had changed status quo.
Colin Percival [Sat, 25 Aug 2018 16:14:56 +0000 (16:14 +0000)]
Speed up vt(4) by keeping a record of the most recently drawn character and
the foreground and background colours. In bitblt_text functions, compare
values to this cache and don't re-draw the characters if they haven't changed.
When invalidating the display, clear this cache in order to force characters
to be redrawn; also force full redraws between suspend/resume pairs since odd
artifacts can otherwise result.
When scrolling the display (which is where most time is spent within the vt
driver) this yields a significant performance improvement if most lines are
less than the width of the terminal, since this avoids re-drawing blanks on
top of blanks.
(Note that "re-drawing" here includes writing to the VGA text mode buffer; on
virtualized systems this can be extremely slow since it triggers a glyph
being rendered onto a 640x480 screen).
On a c5.4xlarge EC2 instance (with emulated text mode VGA) this cuts the time
spent in vt(4) during the kernel boot from 1200 ms to 700ms; on my laptop
(with a 3200x1800 display) the corresponding time is reduced from 970 ms down
to 155 ms.
Reviewed by: imp, cem
Approved by: re (gjb)
Relnotes: Significant speedup in vt(4) and the system boot generally.
Differential Revision: https://reviews.freebsd.org/D16723
Kyle Evans [Sat, 25 Aug 2018 04:28:02 +0000 (04:28 +0000)]
lualoader: Fix override of module_path on loader prompt
Earlier changes setup a config.module_path variable that was populated upon
reading of loader.conf(5) and used for restoring module_path to pristine
condition if multiple kernels are attempted. This broke the ability to
override module_path at the loader prompt in case of emergency.
Navdeep Parhar [Fri, 24 Aug 2018 21:48:13 +0000 (21:48 +0000)]
Unbreak VLANs after r337943.
ether_set_pcp should not be called from ether_output_frame for VLAN
interfaces -- the vid + pcp will be inserted during vlan_transmit in
that case. r337943 sets the VLAN's ifnet's if_pcp to a proper PCP value
and this led to double encapsulation (once with vid 0 and second time
with vid+pcp).
Marius Strobl [Fri, 24 Aug 2018 21:08:05 +0000 (21:08 +0000)]
The read accessors generated by __BUS_ACCESSOR() have the problem that
they don't check the result of BUS_READ_IVAR(9) and silently return stack
garbage on failure in case a bus doesn't implement a particular instance
variable for example. With MMC bridges not providing MMCBR_IVAR_RETUNE_REQ,
yet, this in turn can cause mmc(4) to get into a state in which re-tuning
seems to be necessary but is inappropriate, causing mmc_wait_for_request()
to fail. Thus, don't use __BUS_ACCESSOR() for mmcbr_get_retune_req() and
instead provide a version of the latter which returns retune_req_none if
reading MMCBR_IVAR_RETUNE_REQ fails.
One more straight-forward solution would have been to change mmc(4) to not
call mmcbr_get_retune_req() if the current transfer mode doesn't require
re-tuning to begin with. However, for modes such as SDR50, it depends on
the controller whether periodic re-tuning is need. Therefore, knowledge of
whether a particular transfer mode does require re-tuning should be kept
to the bridge drivers.
This change is the generic version of r338271, as intended not requiring
bridge drivers to be touched (unless transfer modes beyond high speed are
to be supported that is).
Kyle Evans [Fri, 24 Aug 2018 20:44:58 +0000 (20:44 +0000)]
libbe(3)/bectl(8): Make consistent with beadm
vermaden (maintainer of beadm) points out the following inconsistencies:
- "missing command" is not printed prior to usage if the error is simply a
missing command; this should be obvious from the context
- "bectl rename" isn't using the "don't unmount" flag (zfs rename -u), so
the active BE can't be renamed. It doesn't make sense in our context to
*not* use -u, so use it.
Documentation updates reflect the above and note an inconsistency with the
'destroy' command that is consistent with other parts of the base system.
A fix for libbe(3) not properly being installed to /lib is included.
SHLIBDIR should have been added when it was moved in r337995.
Gleb Smirnoff [Fri, 24 Aug 2018 18:47:50 +0000 (18:47 +0000)]
Either "free" or "allocated" is misleading here, since an item
in a bucket is free from perspective of UMA consumer, and it is
allocated from perspective of keg.
Emmanuel Vadot [Fri, 24 Aug 2018 15:00:36 +0000 (15:00 +0000)]
arm64: Add DTS overlays for A64
- sun50i-a64-sid.dtso registers the Security ID node, needed for thermal
- sun50i-a64-ths.dtso registers the thermal node, for which we already have a
driver
- sun50i-a64-timer.dtso registers the timer node, needed as the generic timer
glitch on A64 SoC.
Alexander Motin [Fri, 24 Aug 2018 01:59:25 +0000 (01:59 +0000)]
Unblock speculative prefetcher also on pool creation.
Fix at r331950 appeared to be incomplete, fixing only case of pool
import, but not pool creation, leaving prefetcher still blocked for
newly created pools.
After long consultations with re@, core members and mmacy, revert
these changes. Followup changes will be made to mark them as
deprecated and prent a message about where to find the up-to-date
driver. Followup commits will be made to make this clear in the
installer. Followup commits to reduce POLA in ways we're still
exploring.
It's anticipated that after the freeze, this will be removed in
13-current (with the residual of the drm2 code copied to
sys/arm/dev/drm2 for the TEGRA port's use w/o the intel or
radeon drivers).
Due to the impending freeze, there was no formal core vote for
this. I've been talking to different core members all day, as well as
Matt Macey and Glen Barber. Nobody is completely happy, all are
grudgingly going along with this. Work is in progress to mitigate
the negative effects as much as possible.
Allan Jude [Thu, 23 Aug 2018 22:50:11 +0000 (22:50 +0000)]
bsdinstall/zfsboot: Enable new UEFI+GELI support
After r336252 it is no longer necessary to have a separate bootpool when
booting from an encrypted disk with UEFI.
This change also switches the EFI System Partition contents from
the 800 KB boot1.efifat to a new 200 MB filesystem created with newfs_msdos
and uses loader.efi directly, instead of boot1.efi.
Marius Strobl [Thu, 23 Aug 2018 21:26:58 +0000 (21:26 +0000)]
- Use le32dec(9) for decoding EXT_CSD values where it makes sense. [1]
- Locally cache some instance variable values in mmc_discover_cards()
in order to improve the code readability a bit.
Bjoern A. Zeeb [Thu, 23 Aug 2018 20:44:26 +0000 (20:44 +0000)]
Reduce the log level of tcpd_warn calls from ERR to WARNING.
This matches the name and avoids logging of warnings to console with
default syslog.conf, esp. getting rid of:
warning: /etc/hosts.allow, line ..: can't verify hostname: \
getaddrinfo(.., AF_INET) failed
Mark Johnston [Thu, 23 Aug 2018 20:34:22 +0000 (20:34 +0000)]
Ensure that queue state is cleared when vm_page_dequeue() returns.
Per-page queue state is updated non-atomically, with either the page
lock or the page queue lock held. When vm_page_dequeue() is called
without the page lock, in rare cases a different thread may be
concurrently dequeuing the page with the pagequeue lock held. Because
of the non-atomic update, vm_page_dequeue() might return before queue
state is completely updated, which can lead to race conditions.
Restrict the vm_page_dequeue() interface so that it must be called
either with the page lock held or on a free page, and busy wait when
a different thread is concurrently updating queue state, which must
happen in a critical section.
While here, do some related cleanup: inline vm_page_dequeue_locked()
into its only caller and delete a prototype for the unimplemented
vm_page_requeue_locked(). Replace the volatile qualifier for "queue"
added in r333703 with explicit uses of atomic_load_8() where required.
Marius Strobl [Thu, 23 Aug 2018 20:25:27 +0000 (20:25 +0000)]
Obtain the bus mode (MMC or SD) from the directly superordinated
bus rather than reaching up to the bridge and use the cached mode
in mmcsd_delete(), too.
Emmanuel Vadot [Thu, 23 Aug 2018 18:46:05 +0000 (18:46 +0000)]
a10_timer: Update the driver so we can use it on other SoC
a10_timer is currently use in UP allwinner SoC (A10 and A13).
Those don't have the generic arm timer.
The arm generic timecounter is broken in the A64 SoC, some attempts have
been made to fix the glitch but users still reported some minor ones.
Since the A64 (and all Allwinner SoC) still have this timer controller, rework
the driver so we can use it in any SoC.
Since it doesn't have the 64 bits counter on all SoC, use one of the
generic 32 bits counter as the timecounter source.
Emmanuel Vadot [Thu, 23 Aug 2018 18:33:42 +0000 (18:33 +0000)]
aw_mmc: Handle MMCBR_IVAR_RETUNE_REQ
Without this the mmc stack sometimes think that we are in in a retune
operation and some command like switch the bus width to 4 bits failed.
We now switch correctly to 4 bits mode for sd card.
Alex Richardson [Thu, 23 Aug 2018 18:19:33 +0000 (18:19 +0000)]
Don't build skein_block_asm.s if we don't have an as binary
This fixes building libmd on MacOS/Linux. The real fix is probably to
build it as a .S file with $CC instead. It might also be better to just
compile the C file in userspace since the compiler can the use SSE/AVX.
Alex Richardson [Thu, 23 Aug 2018 18:19:21 +0000 (18:19 +0000)]
Only bootstrap localedef if ${MK_LOCALES} != "no"
During the build it is only used by share/ctypedef and share/colldef
which will not be built if ${MK_LOCALE} == "no". This saves a tiny bit
of time when building without locales.
Alex Richardson [Thu, 23 Aug 2018 18:19:10 +0000 (18:19 +0000)]
Fix non-FreeBSD host lib32 build for TARGET=amd64
When building on non-FreeBSD systems we need to pass an explicit target
triple to clang otherwise it will attempt to build with the host triple.
This also has advantages when building on a FreeBSD host: we now tell
clang that we are targeting at least FreeBSD 12.0 instead of an older
version so it can enable newer features.
Kyle Evans [Thu, 23 Aug 2018 18:01:34 +0000 (18:01 +0000)]
stand: fdt: Drop some write-only assignments/variables and leaked bits
Generally straightforward enough; a copy of argv[1] was being made in
command_fdt_internal, solely used for a comparison within the
handler-search, then promptly leaked.
Reported by: ports gcc and clang's static analyzer
Marius Strobl [Thu, 23 Aug 2018 17:50:41 +0000 (17:50 +0000)]
- According to section 2.2.5 of the SDHCI specification version 4.20,
SDHCI_TRNS_ACMD12 is to be set only for multiple-block read/write
commands without data length information, so don't unconditionally
set this bit. The result matches what e. g. Linux does.
- Section 2.2.19 of the SDHCI specification version 4.20 states that
SDHCI_ACMD12_ERR should be only valid if SDHCI_INT_ACMD12ERR is set
and hardware may clear SDHCI_ACMD12_ERR when SDHCI_INT_ACMD12ERR is
cleared (differing silicon behavior is specifically allowed, though).
Thus, read SDHCI_ACMD12_ERR before clearing SDHCI_INT_ACMD12ERR.
While at it, use the 16-bit accessor rather than the 32-bit one for
reading the 16-bit SDHCI_ACMD12_ERR.
- SDHCI_INT_TUNEERR isn't one of the ROC bits in SDHCI_INT_STATUS so
clear it explicitly.
- Add missing prototypes and sort them.
Kyle Evans [Thu, 23 Aug 2018 17:27:02 +0000 (17:27 +0000)]
lualoader: Accept that people use unquoted values in loader.conf
While loader.conf(5) suggests that all values should be quoted, reality is
that this was never strictly enforced and it is used. We already make some
concession to this in number values, which aren't strictly quoted either.
The compromise here is that multi-word values must be quoted. This lets
things like `foo_load=YES` work, while denying more complex expressions on
the right hand side. This likely catches the vast majority of current usage.
A bit of a kludge is needed to accomplish this since Lua regex doesn't
support branching. I had considered splitting up expressions and generating
the right-hand side of the expressions completely in config.parse, but
deemed this too large of an overhaul to take given the current timing. This
should be re-worked shortly after the thaw.
Bjoern A. Zeeb [Thu, 23 Aug 2018 16:54:22 +0000 (16:54 +0000)]
MFp4 bz_ipv6_fast:
Migrate udp6_send() v4mapped code to udp6_output() saving us a re-lock and
further simplifying the address-family handling code by eliminating
AF_INET checks and almost all v4mapped handling right after the start
as cases could actually not happen anymore.
Rework output path locking similar to UDP4 allowing for better
parallelism (see r222488, and later versions).
Sponsored by: The FreeBSD Foundation (2012)
Sponsored by: iXsystems (2012)
Differential Revision: https://reviews.freebsd.org/D3721
Kristof Provost [Thu, 23 Aug 2018 16:52:52 +0000 (16:52 +0000)]
xen/netfront: Ensure curvnet is set
netfront_backend_changed() is called from the xenwatch_thread(), which means
that the curvnet is not set. We have to set it before we can call things like
arp_ifinit().
Kyle Evans [Thu, 23 Aug 2018 16:26:03 +0000 (16:26 +0000)]
lualoader: Fix (add) Xen support
lualoader was not respecting the 'xen_kernel' environment variable, which
hints to the interpreter that it should load a Xen kernel prior to loading
any other kernel that might be specified. If a Xen kernel is specified and
we fail to load it, we should not proceed to boot.
Patrick Kelsey [Thu, 23 Aug 2018 16:10:28 +0000 (16:10 +0000)]
Extend tbrsize heuristic in pfctl(8) to provide a sensible value for
higher bandwidth interfaces. The new value is used above 2.5 Gbps,
which is the highest standard rate that could be used prior to
r338209, so the default behavior for all existing systems should
remain the same.
The value of 128 chosen is a balance between being big enough to
reduce potential precision/quantization effects stemming from frequent
bucket refills over small time intervals and being small enough to
prevent a greedy driver from burst dequeuing more packets than it has
available hardware ring slots for whenever altq transitions from idle
to backlogged.
Mark Johnston [Thu, 23 Aug 2018 14:58:19 +0000 (14:58 +0000)]
Add an lld option to emit PC-relative relocations for ifunc calls.
The current kernel ifunc implementation creates a PLT entry for each
ifunc definition. ifunc calls therefore consist of a call to the
PLT entry followed by an indirect jump. The jump target is written
during boot when the kernel linker resolves R_[*]_IRELATIVE relocations.
This implementation is defined by requirements for userland code, where
text relocations are avoided. This requirement is not present for the
kernel, so the implementation has avoidable overhead (namely, an extra
indirect jump per call).
Address this for now by adding a special option to the static linker
to inhibit PLT creation for ifuncs. Instead, relocations to ifunc call
sites are passed through to the output file, so the kernel linker can
enumerate such call sites and apply PC-relative relocations directly
to the text section. Thus the overhead of an ifunc call becomes exactly
the same as that of an ordinary function call. This option is only for
use by the kernel and will not work for regular programs.
The final form of this optimization is up for debate; for now, this
change is simple and static enough to be acceptable as an interim
solution.
Reviewed by: emaste
Discussed with: arichardson, dim
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D16748
Kyle Evans [Thu, 23 Aug 2018 13:38:38 +0000 (13:38 +0000)]
efiloader: Setup FDT in autoload to fix overlays clobbering kenv
manu found in the noted PR that overlays seemed to be clobbering the kenv
and killing the boot. Further inspection revealed that one can `fdt ls` at
the loader prompt for a successful boot, but autoboot breaks it.
In the autoboot case, first setup of FDT is happening in the middle of
bi_load, which triggers loading of the DTBO from /boot.
This is bad, bad, bad. Files in the loader are loaded somewhere in the
middle of the address space one after another. bi_load starts building the
needed kernel bootinfo immediately after the highest-addr loaded file. File
loads in the middle of bi_load suddenly clobber bootinfo and everything goes
off the rails.
The solution to this is to use take advantage of arch_autoload to setup FDT
in efiloader compiled with LOADER_FDT_SUPPORT. This matches how it works in
ubldr land, and is how it should have worked when overlay support was added
to efiloader since fdt_setup_fdtp now has the potential to load files
(courtesy of fdt_platform_load_dtb).
Emmanuel Vadot [Thu, 23 Aug 2018 13:21:01 +0000 (13:21 +0000)]
dts: Import DTS for arm64
- Most of the boards are using U-Boot, u-boot embed a DTB that isn't
compiled with -@ (overlay ready) so we cannot use overlays. We want
overlays, overlays are nice.
- The DTS life is going to linux, then sometimes it's imported in
U-Boot but it depend on the SoC family, U-Boot doesn't batch import
every DTS like we do. So sometimes to U-Boot DTS are very old. Or when
an interesting patch in commited upstream it is in Linux X+2 (roughly 4
months from now), we then have to wait for U-Boot to catch up, that
give us between 4 and 6 months to have an update.
- Some boards like the Marvell ones have 3 DTS, the one in the
vendor U-Boot made by Marvell themselves, the one in u-boot mainline
and the one in Linux. I found that the DTS in the Marvell U-Boot have
some problem with FreeBSD (especially the macchiatobin that declare
node with the same address but not the same size, that is not something
that the rman code can handle, it could be modified, I don't know the
code well enough). Also some compatible are used when they shouldn't,
for example they declare the gpio being orion-gpio while this binding
requires interrupts supports, which the node doesn't have.
- The above situation is mostly the same with RockChip SoCs (possibly
others, those are the only SoCs I work on that have this problem).
Note that importing the DTS doesn't mean that every board will use
them, I don't intend to copy the DTB to the GENERIC memstick image for
the Overdrive 1000/3000 for example, the ones provided by the firmware
works fine.
RPI3 will still stay an exception as we use the DTB provided by the
rpi-firmware package, so they come from the rpi foundation linux fork.
Renato Botelho [Thu, 23 Aug 2018 10:38:59 +0000 (10:38 +0000)]
usr.sbin/ndp: Cleanup in preparation to add libxo support
* Constify rtpref_str declaration
* Remove unused h_errno declaration
* Use time_t type for expire
* Use strlcpy to set static "?" value to ifname
* Rename local variable 's' to stop shadowing global definition
* Close socket used in pfx_flush()
* Use local variables for sock() in setdefif() and getdefif()
* Increase WARNS to 3
Michael Tuexen [Thu, 23 Aug 2018 06:03:59 +0000 (06:03 +0000)]
Don't use the explicit number 32 for the length of the secrets,
use sizeof() or explicit #definesi instead. No functional change.
This was suggested by jmg@.
Warner Losh [Thu, 23 Aug 2018 05:06:31 +0000 (05:06 +0000)]
Add a special note to UPDATING for the devmatch stuff. While tested,
there's an elevated risk of trouble, and you must update kernel,
userland and rc scripts for the best experience.
Warner Losh [Thu, 23 Aug 2018 05:06:22 +0000 (05:06 +0000)]
When trying to match the nomatch event passed to us, attempt to look
up the device described by the nomatch event in the device tree. If we
find it, then if the device is marked as have already attached to a
device once, then ignore the device.
This keeps us from reloading the device driver when it has just been
manually unloaded. All devies that have had a driver attach to them at
least once no longer participate in pnp-based autoloading.
Warner Losh [Thu, 23 Aug 2018 05:06:16 +0000 (05:06 +0000)]
Add a new device flag: DF_ATTACHED_ONCE
This flag is set once the device has been successfully attached. When
set, it inhibits devmatch from trying to match the device. This in
turn allows kldunload to work as expected. Prior to the change, the
driver would immediately reload because devmatch had no notion that
the driver had once been attached, and therefore shouldn't participate
in further matching.
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