Centralize the complications for special efficient rounding to integers.
This was open-coded in range reduction for trig and exp functions. Now
there are 3 static inline functions rnint[fl]() that replace open-coded
expressions, and type-generic irint() and i64rint() macros that hide the
complications for efficiently using non-generic irint() and irintl()
functions and casts.
Special details:
ld128/e_rem_pio2l.h needs to use i64rint() since it needs a 46-bit integer
result. Everything else only needs a (less than) 32-bit integer result so
uses irint().
Float and double cases now use float_t and double_t locally instead of
STRICT_ASSIGN() to avoid bugs in extra precision.
On amd64, inline asm is now only used for irint() on long doubles. The SSE
asm for irint() on amd64 only existed because the ifdef tangles made the
correct method of simply casting to int for this case non-obvious.
Set SO_SNDTIMEO in the client side krpc when CLSET_TIMEOUT is done.
During testing of the pNFS client, it was observed that an RPC could get
stuck in sosend() for a very long time if the network connection to a DS
had failed. This is fixed by setting SO_SNDTIMEO on the TCP socket.
This is only done when CLSET_TIMEOUT is done and this is not done by any
use of the krpc currently in the source tree, so there should be no effect
on extant uses.
A future patch will use CLSET_TIMEOUT for TCP connections to DSs.
Bump version to 1200075 for zfsloader being folded into loader.
As an aside: 1200074 should be used as the last version with big
endian arm support, should that be needed. it was actually removed
a day later, but no bump was made until now.
Collapse zfsloader functionality back down into loader.
We no longer really need a separate zfsloader. It was useful when we
were first supporting ZFS and had limited ability to properly boot off
of ZFS without the special boot loader. Now that the boot loader has
matured, go the way loader.efi pioneered and just build one
binary. Change the name of the loader to load in the secondary boot
blocks to be just /boot/loader. Provide a symbolic link from zfsloader
to loader so people who have not upgraded their boot blocks are not
affected. This has the happy benefit of making coexistence easier as
well (fewer binaries in the matrix).
cem [Fri, 20 Jul 2018 01:51:05 +0000 (01:51 +0000)]
cryptocheck: Correct mismatch between OpenSSL use and OCF Blake2
This corrects a mistake introduced to the cryptocheck tool in r331418.
Our CRYPTO_BLAKE2B and CRYPTO_BLAKE2S algorithms refer to either the plain,
unkeyed hashes (specified with cri_klen = 0), or a Blake2-specific keyed MAC
(when a cri_key is provided).
In contrast, OpenSSL's Blake2 algorithms only provide the plain hash.
Cryptocheck's T_HMAC corresponds to OpenSSL's HMAC() routine, which is the
ordinary HMAC construction applied to any plain, unkeyed hash. We don't
have any HMAC-Blake2 cipher modes in OCF, so fix the test to only test
Blake2 as a plain hash.
(Ideally we would test keyed Blake2 as well, but that is left as future
work.)
ian [Thu, 19 Jul 2018 23:55:29 +0000 (23:55 +0000)]
Make it possible to run ntpd as a non-root user, add ntpd uid and gid.
Code analysis and runtime analysis using truss(8) indicate that the only
privileged operations performed by ntpd are adjusting system time, and
(re-)binding to privileged UDP port 123. These changes add a new mac(4)
policy module, mac_ntpd(4), which grants just those privileges to any
process running with uid 123.
This also adds a new user and group, ntpd:ntpd, (uid:gid 123:123), and makes
them the owner of the /var/db/ntp directory, so that it can be used as a
location where the non-privileged daemon can write files such as the
driftfile, and any optional logfile or stats files.
Because there are so many ways to configure ntpd, the question of how to
configure it to run without root privs can be a bit complex, so that will be
addressed in a separate commit. These changes are just what's required to
grant the limited subset of privs to ntpd, and the small change to ntpd to
prevent it from exiting with an error if running as non-root.
I had naively assumed that building kernel would be sufficient to test that
the header is sane. However, it turns out this now needs -fms-extensions to
build. Rather than sprinkling -fms-extensions all over the place, revert
for now, and revisit with a better fix.
Merge the md_page structs for AIM and Book-E into a single unioned struct
Summary:
Ports like sysutils/lsof troll through kernel structures, and
therefore include kernel headers and all the dirty secrets involved. struct
vm_page includes the struct md_page inline, which currently is only defined
if AIM or BOOKE is defined. Thus, by default, sysutils/lsof cannot build,
due to the struct md_page having an incomplete type. Fix this by merging
the two struct definitions into an anonymous struct-union.
A similar change could be made to unify the pmap structures as well.
Have preload_delete_name() free pages backing preloaded data.
On i386 and amd64, add a vm_phys segment for physical memory used to
store the kernel binary and other preloaded data. This makes it
possible to free such memory back to the system once it is no longer
needed, e.g., when a preloaded kernel module is unloaded. Previously,
it would have remained unused.
Reviewed by: kib, royger
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D16330
dim [Thu, 19 Jul 2018 19:07:25 +0000 (19:07 +0000)]
Revert r336497 for now, as it breaks on architectures using gcc, with:
cc1: warnings being treated as errors
/usr/src/lib/msun/src/s_cpow.c: In function 'cpow':
/usr/src/lib/msun/src/s_cpow.c:63: warning: implicit declaration of function 'CMPLX'
dim [Thu, 19 Jul 2018 18:44:10 +0000 (18:44 +0000)]
Fix powl, cpow, cpowf, and cpowl imports from OpenBSD
This is a follow-up to r336299.
* lib/msun/Makefile:
. Remove polevll.c
* lib/msun/ld80/e_powl.c:
. Copy contents of polevll.c to here. This is the only consumer of
these functions. Make functions 'static inline'.
. Make reducl a 'static inline' function.
* lib/msun/man/exp.3:
. Remove BUGS section that no longer applies.
* lib/msun/src/math_private.h:
. Remove prototypes of __p1evll() and __polevll()
* lib/msun/src/s_cpow.c:
* lib/msun/src/s_cpowf.c:
* lib/msun/src/s_cpowl.c
. Use the CMPLX macro from either C99 or math_private.h (depends of
compiler support) instead of the problematic use of complex I.
Revert r329254. The underlying cause for the copy-on-write problem in
multithreaded programs that was addressed by r329254 was in the
implementation of pmap_enter() on some architectures, notably, amd64.
kib@, markj@ and I have audited all of the pmap_enter() implementations,
and fixed the broken ones, specifically, amd64 (r335784, r335971), i386
(r336092), mips (r336248), and riscv (r336294).
To be clear, the reason to address the problem within pmap_enter() and
revert r329254 is not just a matter of principle. An effect of r329254
was that a copy-on-write fault actually entailed two page faults, not
one, even for single-threaded programs. Now, in the expected case for
either single- or multithreaded programs, we are back to a single page
fault to complete a copy-on-write operation. (In extremely rare
circumstances, a multithreaded program could suffer two page faults.)
Fix spurious and extra underflows and resulting inaccuracies for some cases
with 1 huge component and 1 tiny (but nowhere near denormal) component.
Rescale earlier so that a scale factor of 2 can be combined with a non-
scale divisor of 2, so that the division doesn't shift out a bit. In the
usual case where the scale factor is just 1, the division may shift out a
bit, but then the underflow is not spurious and the inaccuracies are harder
to fix.
manu [Thu, 19 Jul 2018 11:31:49 +0000 (11:31 +0000)]
cpufreq_dt: Add operating-points-v2 support
Oppv2 add more flexibility on regulator value for the core voltage amongst
other new thing.
For now only shared opp table is supported as I don't have hardware with
non-shared opp table.
Tested-On: OrangePi One (with oppv1 and oppv2)
Tested-On: Pine64-LTS
In order to setup an initial environment and jump into the generic
hammer_time initialization function. Some of the code is shared with
PVHv1, while other code is PVHv2 specific.
This allows booting FreeBSD as a PVHv2 DomU and Dom0.
xen: allow very early initialization of the hypercall page
Allow the hypercall page to be initialized very early, even before
vtophys is functional. Also make the function global so it can be
called by other files.
This will be needed in order to perform the early bringup on PVHv2
guests.
HYPERVISOR_start_info is only available to PV and PVHv1 guests, HVM
and PVHv2 guests get this data from HVM parameters that are fetched
using a hypercall.
Instead provide a set of helper functions that should be used to fetch
this data. The helper functions have different implementations
depending on whether FreeBSD is running as PVHv1 or HVM/PVHv2 guest
type.
This helps to cleanup generic Xen code by removing quite a lot of
xen_pv_domain and xen_hvm_domain macro usages.
The PVHv2 entry point is fairly similar to the multiboot1 one. The
kernel is started in protected mode with paging disabled. More
information about the exact BSP state can be found in the pvh.markdown
document on the Xen tree.
This entry point is going to be joined with the native entry point at
hammer_time, and in order to do so the BSP needs to be bootstrapped
into long mode with the same set of page tables as used on bare metal.
dab [Wed, 18 Jul 2018 13:04:03 +0000 (13:04 +0000)]
Make the definition of struct kevent in event.h match what the man page for kevent(2) says.
This is a trivial comment-only fix. The man page for kevent(2) gives
the definition of struct kevent, including a comment on each
field. The actual definition in sys/event.h omitted the comments on
some fields. Add the comments in. Not only does this make the man page
and include file agree, but the comments are useful in and of
themselves.
Reviewed by: kib (D15778: commented that this should be a separate commit)
MFC after: 3 days
Sponsored by: Dell EMC
Remove the dead code from ARM cpufunc_* files.
The elf trampoline was never been supported for ARMv6 and ARMv7 and was
disconnected from kernel build many months ago.
Do not inline transmit headers and use HW VLAN tagging if supported by mlx5en(4).
Query the minimal inline mode supported by the card.
When creating a send queue, cache the queried mode and optimize the transmit
if no inlining is required. In this case, we can avoid touching the headers
cache line and avoid dirtying several more lines by copying headers into
the send WQEs. Also, if no inline headers are used, hardware assists in
the VLAN tag framing.
Implemented Device Lost Timer, which is used to give target device the time to recover before marking dead.
Issue: IO fails immediately after doing port-toggle.
Fix: Added LDT(Device Lost Timer)- we wait a specific period of time prior to telling the OS about lost device.
cem [Wed, 18 Jul 2018 00:56:25 +0000 (00:56 +0000)]
OpenCrypto: Convert sessions to opaque handles instead of integers
Track session objects in the framework, and pass handles between the
framework (OCF), consumers, and drivers. Avoid redundancy and complexity in
individual drivers by allocating session memory in the framework and
providing it to drivers in ::newsession().
Session handles are no longer integers with information encoded in various
high bits. Use of the CRYPTO_SESID2FOO() macros should be replaced with the
appropriate crypto_ses2foo() function on the opaque session handle.
Convert OCF drivers (in particular, cryptosoft, as well as myriad others) to
the opaque handle interface. Discard existing session tracking as much as
possible (quick pass). There may be additional code ripe for deletion.
Convert OCF consumers (ipsec, geom_eli, krb5, cryptodev) to handle-style
interface. The conversion is largely mechnical.
The change is documented in crypto.9.
Inspired by
https://lists.freebsd.org/pipermail/freebsd-arch/2018-January/018835.html .
No objection from: ae (ipsec portion)
Reported by: jhb
Fixes for the following issues:
1. Fix taskqueues drain/free to fix panic seen when interface is being
bought down and in parallel asynchronous link events happening.
2. Fix bxe_ifmedia_status()
Submitted by:Vaishali.Kulkarni@cavium.com and Anand.Khoje@cavium.com
MFC after:5 days
Remove bogus attempt to simulate scrolling. It's not needed and messes
up serial output. Setting the cursor position after every character is
inefficient, and causes all lines to be over-printed in the serial
console for the boot loader. Allow the terminal to do the emulation.
This isn't completely perfect when the size of the terminal attached
to the serial port isn't the same as 80x25 to match the viedoe console
(or whatever the video console is). While imperfect still, these
changes make it much better.
Fix a typo: change lists to list to match rest of sentence.
Also, I misspoke in r336428. Any devices on sparc64 machines on "isa"
that can do DMA can do 32-bit address DMA and aren't limited to
24-bits of address.
audit(4): add tests for _exit(2), cap_enter(2), and cap_getmode(2)
Also, fix a bug in common code that could cause other tests to fail: using
ppoll(2) in combination with buffered I/O for /dev/auditpipe. Fix it by
disabling buffering.
projects / FreeBSD / FreeBSD.git / log