| Commit message (Collapse) | Author | Age | Files | Lines |
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Use 64-bit math when finding a block of ram to hold the kernel. This fixes
a problem on 32-bit systems which have ram occupying the end of the physical
address space -- for example, a block of ram at 0x80000000 with a size of
0x80000000 was overflowing 32 bit math and ending up with a calculated size
of zero.
Use 64-bit math when processing the lists of physical and excluded memory
to generate the phys_avail and dump_avail arrays.
Work around problems that happen when there is ram at the end of the
physical address space.
Cast pointer through uintptr_t on the way to uint64_t to squelch a warning.
Reword the comment to better describe what I found while researching the
problem that led to this temporary workaround (and also so I can properly
cite the PR in the commit this time).
Cast using uintfptr_t and eliminate the cast to uint64_t which is uneeded
because rounding down cannot increase the number of bits needed to express
the result.
Go back to using uintptr_t, because code that actually compiles is
infinitely less buggy than code that is theoretically correct in some
alternate universe.
PR: 201614
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Make the 'env' directive described in config(5) work on all architectures,
providing compiled-in static environment data that is used instead of any
data passed in from a boot loader.
Previously 'env' worked only on i386 and arm xscale systems, because it
required the MD startup code to examine the global envmode variable and
decide whether to use static_env or an environment obtained from the boot
loader, and set the global kern_envp accordingly. Most startup code wasn't
doing so. Making things even more complex, some mips startup code uses an
alternate scheme that involves calling init_static_kenv() to pass an empty
buffer and its size, then uses a series of kern_setenv() calls to populate
that buffer.
Now all MD startup code calls init_static_kenv(), and that routine provides
a single point where envmode is checked and the decision is made whether to
use the compiled-in static_kenv or the values provided by the MD code.
The routine also continues to serve its original purpose for mips; if a
non-zero buffer size is passed the routine installs the empty buffer ready
to accept kern_setenv() values. Now if the size is zero, the provided buffer
full of existing env data is installed. A NULL pointer can be passed if the
boot loader provides no env data; this allows the static env to be installed
if envmode is set to do so.
Most of the work here is a near-mechanical change to call the init function
instead of directly setting kern_envp. A notable exception is in xen/pv.c;
that code was originally installing a buffer full of preformatted env data
along with its non-zero size (like mips code does), which would have allowed
kern_setenv() calls to wipe out the preformatted data. Now it passes a zero
for the size so that the buffer of data it installs is treated as
non-writeable.
Also, revert accidental change that snuck into r293045.
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ARM: Improve robustness of locore_v6.S and fix errors.
- boot page table is not allocated in data section, so must be
cleared before use
- map only one section (1 MB) for SOCDEV mapping (*)
- DSB must be used for ensuring of finishing TLB operations
- Invalidate BTB when appropriate
Allow armv4/5 kernels to be loaded on any 2MB boundary, like armv6/7.
This eliminates the reliance on PHYSADDR and KERNPHYSADDR compile-time
symbols (except when the rom-copy code is enabled) by using the current
PC and the assumption that the entry-point routine is in the first 1MB
section of the text segment.
Other cleanups done:
- Reduce the initarm() stack size back to 2K. It got increased to
4 * 2K when this file was supporting multicore armv6, but that
support is now in locore-v6.S.
- When building the temporary startup page tables, map the entire
4GB address space as VA=PA before mapping the kernel at its loaded
location. This allows access to boot parameters stored somewhere
in ram by the bootloader, regardless of where that may be.
- When building the page table entry for supporting EARLY_PRINTF, map
the section as uncached unbuffered, since it is presumably device
registers.
Note that this restores the ability to use loader(8)/ubldr on armv4/5
kernels. That was broken in r283035, the point at which ubldr started
loading an arm kernel at any 2MB boundary.
Also note that after this, there is no reason to set KERNVIRTADDR to
anything other than 0xc0000000, and no need for PHYSADDR or KERNPHYSADDR
symbols at all.
Bring some of the recent locore-v4.S improvements into locore-V6...
- Map all 4GB as VA=PA so that args passed in from a bootloader can
be accessed regardless of where they are.
- Figure out the kernel load address by directly masking the PC rather
then by doing pc-relative math on the _start symbol.
- For EARLY_PRINTF support, map device memory as uncacheable (no-op for
ARM_NEW_PMAP because all TEX types resolve to uncacheable).
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Remove the SMP code from locore-v4. These will never use the SMP code as
there is no multi-core hardware prior to ARMv6.
Remove the armv6 code from locore-v4.S, it's not needed there.
Fix the style of locore-v4.S and locore-v6.S to help find any common code.
Cleanup a little more:
- Remove whitespace at the end of lines
- Use a tab after instructions, not spaces
Fix the spelling of __ARM_ARCH >= 6 in sys/arm/arm.
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Enhance rc.d/netwait script to wait for late-attaching interfaces such as
USB NICs.
USB network hardware may not be enumerated and available when the rc.d
networking scripts run. Eventually the USB attachment completes and devd
events cause the network initialization to happen, but by then other rc.d
scripts have already failed, because services which depend on NETWORKING
(such as mountcritremote) may end up running before the network is actually
ready.
There is an existing netwait script, but because it is dependent on
NETWORKING it runs too late to prevent failure of some other rc
scripts. This change flips the order so that NETWORKING depends on netwait,
and netwait now depends on devd and routing (the former is needed to make
interfaces appear, and the latter is needed to run the ping tests in
netwait).
The netwait script used to be oriented primarily towards "as soon as any
host is reachable the network is fully functional", so you gave it a list of
IPs to try and you could optionally name an interface and it would wait for
carrier on that interface. That functionality still works the same, but now
you can provide a list of interfaces to wait for and it waits until each one
of them is available. The ping logic still completes as soon as the first IP
on the list responds.
These changes were submitted by Brenden Molloy <brendan+freebsd@bbqsrc.net>
in PR 205186, and lightly modified by me to allow a list of interfaces
instead of just one.
PR: 205186
Relnotes: yes
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Fix the clock divisor calc for imx6 sdcard bus speed.
Quick exit after setting the clock control register.
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Update the imx5/imx6 cpu_reset() implementation based on a new understanding
of the SRS (software reset) bit in the watchdog control register. Despite
what the manual seems to imply, this bit DOES trigger an immediate reset, as
opposed to simply flagging the type of reset as software-triggered.
Rename sysctl node hw.imx6 to hw.imx. Move its definition to imx_machdep.c
so that code shared between imx5 and imx6 can work with OIDs under that node.
Add last_reset_status (integer) and last_reset_reason (string) OIDs that
provide info about the last chip reset (power-on, software reset, watchdog
timeout).
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Fix printf format to allow for bus_size_t not being u_long on all platforms.
Fix an alignment check that is wrong in half the busdma implementations.
This will enable the elimination of a workaround in the USB driver that
artifically allocates buffers twice as big as they need to be (which
actually saves memory for very small buffers on the buggy platforms).
When deciding how to allocate a dma buffer, armv4, armv6, mips, and
x86/iommu all correctly check for the tag alignment <= maxsize as enabling
simple uma/malloc based allocation. Powerpc, sparc64, x86/bounce, and
arm64/bounce were all checking for alignment < maxsize; on those platforms
when alignment was equal to the max size it would fall back to page-based
allocators even for very small buffers.
This change makes all platforms use the <= check. It should be noted that
on all platforms other than arm[v6] and mips, this check is relying on
undocumented behavior in malloc(9) that if you allocate a block of a given
size it will be aligned to the next larger power-of-2 boundary. There is
nothing in the malloc(9) man page that makes that explicit promise (but the
busdma code has been relying on this behavior all along so I guess it works).
Arm and mips code uses the allocator in kern/subr_busdma_buffalloc.c, which
does explicitly implement this promise about size and alignment. Other
platforms probably should switch to the aligned allocator.
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Add FDT compatibility to the icee driver.
The FDT bindings for eeprom parts don't include any metadata about the
device other than the part name encoded in the compatible property.
Instead, a driver is required to have a compiled-in table of information
about the various parts (page size, device capacity, addressing scheme). So
much for FDT being an abstract description of hardware characteristics, huh?
In addition to the FDT-specific changes, this also switches to using the
newer iicbus_transfer_excl() mechanism which holds bus ownership for the
duration of the transfer. Previously this code held the bus across all
the transfers needed to complete the user's IO request, which could be
up to 128KB of data which might occupy the bus for 10-20 seconds. Now the
bus will be released and re-aquired between every page-sized (8-256 byte)
transfer, making this driver a much nicer citizen on the i2c bus.
The hint-based configuration mechanism is still in place for non-FDT systems.
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Add iicbus_transfer_excl(), a helper routine to do an i2c bus transaction
while holding exclusive ownership of the bus. This is the routine most
slave drivers should use unless they have a need to acquire and hold the
bus across a series of related operations that involves multiple transfers.
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Fix parsing of I2C addresses properties in fdt data. I2C address is
represented in 7-bits format in DT files, but system expect it in 8-bit
format. Also, fix two drivers that locally hack around this bug.
This includes a direct-commit change to the beaglebone dts data in the
10-stable branch to adjust the i2c slave addresses directly. In -current
the equivelent change happened with a switch from homegrown to standard
fdt data.
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Follow the advice of the misplaced comment and don't access the map struct
after freeing it. Remove the comment whose uselessness has been revealed.
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r294320, r294322, r294324, r294330, r294469, r294494, r294466)
Reduce diffs to head in preparation for removing HPN and None.
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- Use attach_md instead of hardcoding md(4) provider unit numbers
- Implement a gmirror_test_cleanup function, which in turn calls
geom_test_cleanup to clean up all md(4) providers allocated in the test
run.
- Remove duplicate logic in test scripts for removing md(4) providers.
- Don't create files in /tmp (outside the kyua sandbox); use the current
directory instead
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bsdinstall: Suggest the GPT+Active workaround on Dell T5810
The Dell Precision Tower 5810 fails to boot from GPT in Legacy/BIOS mode
without the Active flag in the Protective MBR. Suggest the workaround
during installation.
Since an increasing number of Dell systems exhibit this behavior,
I imagine all Dells past a certain date will do so. I would like
to suggest the workaround for all Dells with a BIOS date of, say,
2014 or later, but I would need to test a variety of systems before
committing such a change.
Relnotes: We should probably suggest using GPT+Active on "recent" Dells.
Sponsored by: Dell Inc.
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Add the Dell E7240 laptop and Intel DP965LT motherboard to the list for the GPT active workaround
MFC: r287843
Add the HP ProBook 4330s, Intel DP965LT, D510MO, and Acer Veriton M6630G to the GPT workaround list
Sponsored by: ScaleEngine Inc.
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Test for EPROTOTYPE not EPROTONOSUPPORT
- `SOCK_RAW` is the implied supported type parameter for socket(2) per route(4)
- localsw in `sys/kern/uipc_usrreq.c` doesn't have an entry for `SOCK_RAW`, so
the prototype is invalid (this isn't explicitly documented anywhere I could
find)
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libthr: const-ify two variables
Make the default umutex and urwlock initializers const,
because they can be, and as a microoptimization.
Sponsored by: Dell Inc.
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Make PPS ASSERT/CLEAR events match the RS-232 signal levels as per RFC 2783.
Previously the polarity was for TTL levels, which are the reverse of RS-232.
Also add handling of the UART_PPS_INVERT_PULSE option bit in the sysctl
value, the same as was recently added to uart(4), so that people using TTL
level connections can request a logical inverting of the signal.
Use the named constants from the new dev/uart/uart_ppstypes.h for the pps
capture modes and option bits.
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Initialize vm_page_prot to VM_MEMATTR_DEFAULT instead of 0.
If a driver's Linux mmap callback passed vm_page_prot through unchanged,
then linux_dev_mmap_single() would try to apply whatever VM_MEMATTR_xxx
value 0 is to the mapping. On x86, VM_MEMATTR_DEFAULT is the PAT value
for write-back (WB) which is 6, while 0 maps to the PAT value for
uncacheable (UC). Thus, any mmap request that did not explicitly set
page_prot was tried to map memory as UC triggering the warning in
sg_pager_getpages().
Sponsored by: Chelsio Communications
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Add -w flag to iscsictl(8) utility, to make it wait for successfull
session establishment. Scripting is kind of hard without it.
Sponsored by: The FreeBSD Foundation
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Do not panic when the filesystem which carries the audit files, is unmounted
and audit is active. Do not write to the suspended fs.
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Hide transient EBADF errors caused by the parallel revoke(2) or forced
unmount of devfs mounts, by restarting the failed syscall.
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Call kern_thr_exit() instead of duplicating it.
This code is missing the racct_subr() call from kern_thr_exit() and would
require further code duplication in future changes.
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286974:
Remove reference to non-existent kern_openat(9).
291653:
The cdevpriv_dtr_t typedef was not able to be used in a function prototype
like the various d_*_t typedefs since it declared a function pointer rather
than a function. Add a new d_priv_dtor_t typedef that declares the function
and can be used as a function prototype. The previous typedef wasn't
useful outside of the cdevpriv implementation, so retire it.
The name d_priv_dtor_t was chosen to be more consistent with cdev methods
since it is commonly used in place of d_close_t even though it is not a
direct pointer in struct cdevsw.
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Submitted by: ngie
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Security: CVE-2015-7973, CVE-2015-7974, CVE-2015-7975
Security: CVE-2015-7976, CVE-2015-7977, CVE-2015-7978
Security: CVE-2015-7979, CVE-2015-8138, CVE-2015-8139
Security: CVE-2015-8140, CVE-2015-8158
With hat: so
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r293048:
- Use a temporary file for the temporary md(4) devices instead of
hardcoding it
- Remove the temporary file in the cleanup routine
r293444:
- Move functions that might be used in class-specific cleanup functions
(geom_test_cleanup, etc) down so the testcases don't emit noise when
bailing
- Conform to the TAP protocol better when dealing with classes that can't
be loaded and with temporary files that can't be allocated for tracking
md(4) devices.
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ext4: add support for reading sparse files
Our older GCC can't handle anonymous unions, so
ia64 and powerpc LINT kernels are now failing.
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Prevent double free of control in common sendmsg path as sosend
already freeing it.
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This code is not in modules that need KPI stability so no need to use
the wrapper functions as used in r252511 (head). We can directly use
the locking macros.
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If vnets are torn down while ifconfig runs an ioctl to say, destroy an
epair(4), we may hit if_detach_internal() without holding a lock and by
the time we aquire it the interface might be gone.
We should not panic() in this case as it is our fault for not holding
the lock all the way. It is not ideal to return silently without error
to user space, but other callers will all ignore the return values so
do not change the entire KPI for little benefit for now.
The ifp will be dealt with one way or another still.
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If bootverbose is enabled every vnet startup and virtual interface
creation will print extra lines on the console. We are generally not
interested in this (repeated) information for each VNET. Thus only
print it for the default VNET. Virtual interfaces on the base system
will remain printing information, but e.g. each loopback in each vnet
will no longer cause a "bpf attached" line.
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Simplify bringup order by removing a SYSINIT making it a static list
initialization.
Obtained from: p4 @180384,180385
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If the bus is detached and deleted by a call to device_delete_child() or
device_delete_children() on a device higher in the tree, I²C children
were already detached and deleted. So the device_t pointer stored in sc
points to freed memory: we must not try to delete it again.
By using device_delete_children(), we let subr_bus.c figure out if there
are children to take care of.
While here, make sure iicbus_detach() and iicoc_detach() call
device_delete_children() too, to be safe.
Reviewed by: jhb, imp
Approved by: jhb, imp
Differential Revision: https://reviews.freebsd.org/D3926
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MFC of: r289656
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Fix warnings with gcc 5.0
reconnect.c:
- Convert the K&R prototype of main to an ANSI prototype to mute a
warning from gcc 4.2.1
- Close s_sock2 after finishing off the last test to plug a leak and
mute a warning from gcc 5.0 about a -Wunused-but-set variable
sendfile.c:
- Fix a -Wunused-but-set warning with gcc 5.0 with pagesize in main(..)
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Fix warnings with clang/gcc
- Get rid of unused argc/argv variables in main
- Exit on failure with a return code of 1 instead of -1 with err/errx as a
return code of -1 is implementation dependent
- Bump WARNS to 6
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Clear errno before calling getpw*.
MFC r294196:
Don't bother checking an ip[46].addr netmask/prefixlen. This is already
handled by ifconfig, and it was doing it wrong when the paramater included
extra ifconfig options.
PR: 205926
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Parse and report the nominal rotation rate reported by the drive.
Approved by: jhb
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Fix remaining direct tests of the carry flag in the v86 %eflags via a
magic number to use V86_CY() instead. These should have been fixed as
part of the cleanup in r226746 but were missed.
The md5 sums of the object files were unchanged, so there should be no
functional change.
PR: 205424
Submitted by: Alexander Kuleshov <kuleshovmail@gmail.com>
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Never 4k align the MBR bootpool because zfsldr can not deal with a gap
Sponsored by: ScaleEngine Inc.
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of the MFC done in r294342, but since ia64 is gone in -current this is a
direct commit to 10-stable to add the functions.
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This facilitates investigation of the build failure, and is the same way
it's done for other architectures using EFI.
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The elftoolchain project includes these additional defines for various
userland programs. Given that arch-specific defines are still interesting
in the context of userland programs reading or writing ELF metadata, they
should be included in top-level ELF headers.
Remove duplicate defines from ARM and MIPS elf headers.
Submitted by: will (initial version)
Sponsored by: The FreeBSD Foundation
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Avoid reading pass the end of the source buffer when it is not NUL
terminated.
If this buffer is adjacent to an unmapped page or a version of C with
bounds checked is used this may result in a crash.
PR: 206178
Submitted by: Alexander Cherepanov <cherepan@mccme.ru>
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Avoid reading pass the end of the source buffer when it is not NUL
terminated.
If this buffer is adjacent to an unmapped page or a version of C with
bounds checked is used this may result in a crash.
PR: 206177
Submitted by: Alexander Cherepanov <cherepan@mccme.ru>
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