Guard against the same process being both CUSE server and client at
the same time. This can easily lead to a deadlock when destroying the
character devices nodes.
Ian Lepore [Tue, 22 Dec 2015 03:07:38 +0000 (03:07 +0000)]
Set env vars from values on the efi loader command line.
Examine each cmdline arg and if it contains an '=' convert it to ascii and
pass it to putenv(). This allows var=value settings to come in on the
command line.
This will allow overriding dhcp server-provided data in loader(8), as
discussed in PR 202098
Ian Lepore [Tue, 22 Dec 2015 03:02:52 +0000 (03:02 +0000)]
Allow dhcp/bootp server-provided values to be overriden from environment
variables in loader(8) and other libstand applications.
Sometimes a dhcp server provides incorrect information along with the IP
address. It would be useful to have a way to override this with
locally-supplied information, such as command line parameters passed from a
prior-stage bootloader. This change allows pre-existing env vars to take
precedence over values delivered by the dhcp or bootp server.
The bootp/dhcp code in libstand automatically creates environment variables
from the data provided by the server (dhcp.root-path, dhcp.domain-name,
etc). It also transcribes the values to some global variables such as
'rootpath' and 'hostname'.
This change does two things:
When adding dhcp.* vars to the environment, don't replace existing
vars/values.
When setting the global vars rootpath and hostname, use the
dhcp.root-path and dhcp.host-name env var values if they exist.
This allows the platform-specific part of loader(8) to obtain override
values in some platform-specific way and store them in the environment
before opening the network device. The set of values that can be overriden
is currently limited to just string options. The values that are delivered
as binary data are things that probably shouldn't be overridden (IP,
netmask, gateway, etc).
The original patch this evolved from was submitted by martymac@
Ian Lepore [Tue, 22 Dec 2015 00:53:19 +0000 (00:53 +0000)]
Fix the detection of IO/memory space changing across busses when the bus
is not pci (and thus where, ironically, the whole situation is meaningless).
This was not an error in the original code, it was introduced during my
refactoring to commonize the routine. A small change a few lines above
drove the need to make this change, and the error didn't show up on the
platforms I initially tested with.
Enji Cooper [Tue, 22 Dec 2015 00:43:22 +0000 (00:43 +0000)]
Don't dump core files with lib/libc/ssp/ssp_test and lib/libc/gen/assert_test
The default `sysctl kern.corefile` value is compatible with `kyua test` (FreeBSD
will dump to the current directory). If it's set to an absolute path however,
`kyua test` will not be able to clean up the corefiles after the fact
The corefiles have little value when testing the behavior of feature behavior,
so just disable corefile generation
Ian Lepore [Mon, 21 Dec 2015 23:47:49 +0000 (23:47 +0000)]
Include machine/_bus.h so that bus_space_[tag|handle]_t will be available.
It appears that all platforms except aarch64 are getting the file via
various header pollution, and ensuring _bus.h is included before any
openfirmware headers in every consumer of ofw/fdt stuff seems like more of
a career path than a task, so I'm taking this easy way out.
Ed Maste [Mon, 21 Dec 2015 22:42:03 +0000 (22:42 +0000)]
boot1.efi: show EFI error number, not full status value
EFI return values set the high bit to indicate an error. The log
messages changed here are printed only in the case of an error,
so including the error bit is redundant. Also switch to decimal to
match the error definitions (in sys/boot/efi/include/efierr.h).
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Add i.MX 6 IPU driver and enable it in IMX6 config
Current functionality is somewhat limited: driver assumes that there
is only one active IPU unit (IPU1) and that video output is DI0 and
video mode is 1024x768. For more advanced functionality driver requires
proper clock management which is work in progress. At the moment driver
assumes that pixel clock is configured by u-boot for 1026x768 mode.
Alan Somers [Mon, 21 Dec 2015 22:19:22 +0000 (22:19 +0000)]
Fix "mount -a" for NFS and ZFS filesystems with shared mountpoints
sbin/mount.c
Check whether an fstab entry has the same fstype as a mounted
filesystem before declaring it to be mounted. This will allow NFS
filesystems that share a mountpoint with a local filesystem to be
automatically mounted at boot.
This is not such an unusual situation. For example, if somebody uses
the standard installer with a ZFS root, he'll get a /usr/home
filesystem, even though he may choose to mount /usr/home over NFS.
Enji Cooper [Mon, 21 Dec 2015 21:24:03 +0000 (21:24 +0000)]
Integrate tools/regression/mac/mac_bsdextended and
tools/regression/mac/mac_portacl into the FreeBSD test suite as
tests/sys/mac/bsdextended and tests/sys/mac/portacl, respectively
Enji Cooper [Mon, 21 Dec 2015 21:15:23 +0000 (21:15 +0000)]
Make the mac_portacl testcases work / more robust
- A trap(1) call has been added to the test scripts to better
ensure that the tests do a better job at trying to restore the
test host state at the end of the tests (if the test was
interrupted before it would leave the system in an odd state,
potentially making the test results for subsequent runs
non-deterministic).
- Add root user checks
- Fix nc(1) usage:
-- -o is deprecated
-- Using `-w 10` will make the call timeout after 10 seconds so it
doesn't block indefinitely
- Use local variables
- Be more terse in the error messages
- Parameterize out "127.0.0.1"
Ian Lepore [Mon, 21 Dec 2015 18:07:32 +0000 (18:07 +0000)]
Implement OF_decode_addr() for arm. Move most of powerpc's implementation
into a new function that other platforms can share.
This creates a new ofw_reg_to_paddr() function (in a new ofw_subr.c file)
that contains most of the existing ppc implementation, mostly unchanged.
The ppc code now calls the new MI code from the MD code, then creates a
ppc-specific bus_space mapping from the results. The new arm implementation
does the same in an arm-specific way.
This also moves the declaration of OF_decode_addr() from ofw_machdep.h to
openfirm.h, except on sparc64 which uses a different function signature.
This will help all FDT platforms to set up early console access using
OF_decode_addr().
Ian Lepore [Mon, 21 Dec 2015 17:41:08 +0000 (17:41 +0000)]
Make the building of libsmb and mount_smbfs unconditional, now that r292552
has eliminated alignment and endian problems that were making it fail on
some platforms.
Ian Lepore [Mon, 21 Dec 2015 17:17:00 +0000 (17:17 +0000)]
Avoid unaligned memory accesses when encoding netbios names in libsmb.
The current code for encoding a netbios name converts each byte to a 16-bit
value and stores the result by casting a char* to u_short*, resulting in
alignment faults on strict-alignment platforms.
This change reimplements the encoding routine using only byte accesses to
memory. There is no particular reason to work with 16-bit values just
because the encoding process creates two bytes of output for every byte of
input. Working a byte at at time also avoids endian problems for big-endian
platforms.
Enji Cooper [Mon, 21 Dec 2015 12:43:04 +0000 (12:43 +0000)]
- Convert testcase to TAP format
- Use nitems(x) instead of handrolled sizeof(x) / sizeof(*x) macro
- Do not mark count != 0 case with bsde_get_rule_count as a failure; this
generates false positives on systems with ugidfw rules set on it
In the zero delay case in queue_delayed_work() use the return value
from taskqueue_enqueue() instead of reading "ta_pending" unlocked and
also ensure the callout is stopped before proceeding.
Recheck curthread->td_su after the VFS_SYNC() call, and re-sync if the
ast was rescheduled during VFS_SYNC(). It is possible that enough
parallel writes or slow/hung volume result in VFS_SYNC() deferring to
the ast flushing of workqueue.
Reported and tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Warner Losh [Mon, 21 Dec 2015 05:08:20 +0000 (05:08 +0000)]
There's no such program as [-n :(. Add the missing space. Also,
work when the object directory doesn't exist yet. realpath hates
us, so use the backup of the realpath arg when that happens.
Ian Lepore [Sun, 20 Dec 2015 23:38:14 +0000 (23:38 +0000)]
Change KERNVIRTADDR to 0xc0000000 since the low-order bits no longer need to
match the physical load address. Remove the *PHYSADDR symbols which are no
longer necessary.
Also remove a bunch of comments, most of which which have been wrong for
quite some time now, and the rest of which are mooted by these changes. All
that's left in this file is assigning a single symbol to its cannonical
value, not much to comment on anymore.
Ian Lepore [Sun, 20 Dec 2015 23:31:11 +0000 (23:31 +0000)]
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.
Ian Lepore [Sun, 20 Dec 2015 19:09:12 +0000 (19:09 +0000)]
Tidy up mips ofw_machdep.h. Don't include openfirm.h because openfirm.h
is what includes machine/ofw_machdep.h. Don't declare OF_decode_addr();
it isn't implemented yet on mips and the declaration for it is about to
be commonized into openfirm.h.
Ed Maste [Sun, 20 Dec 2015 16:07:09 +0000 (16:07 +0000)]
loader.efi: refresh size in GetMemoryMap retry loop
If ExitBootServices fails due to a changed efi_mapkey then GetMemoryMap
must be called again. In this case it is also possible for the memory
map to grow, so repeat the initial GetMemoryMap call to fetch the new
size.
Also roll bi_add_efi_data_and_exit into bi_load_efi_data as there's no
need for it to be a separate function.
Depending on system configuration and parameters, clock_gettime() and
gettimeofday() may not be system calls. If so, passing an invalid pointer
will cause a signal and not an [EFAULT] error.
From a standards perspective, this is OK since passing an invalid pointer is
undefined behaviour.
Enji Cooper [Sun, 20 Dec 2015 05:52:03 +0000 (05:52 +0000)]
Always expose LOCALBASE, not just when CROSS_TOOLCHAIN is defined
Instead of using which(1) to look for doxygen, look for it in <LOCALBASE>/bin .
$PATH gets mangled by make buildenv, etc so it's better to just be explicit
about the path if someone uses that for instance.
Enji Cooper [Sun, 20 Dec 2015 04:52:53 +0000 (04:52 +0000)]
Skip the testcases on i386 (all the assertions fail) [*]
Also, don't compile the ldexpl(3) testcases on platforms that don't support
the libcall (technically only x86 right now). This makes this test buildable on
arm*/mips*/powerpc*
PR: 205449 [*]
MFC after: 1 week
Tested on: stable/10 (amd64/i386), head (amd64/i386)
Sponsored by: EMC / Isilon Storage Division
Enji Cooper [Sun, 20 Dec 2015 04:28:37 +0000 (04:28 +0000)]
- Use nitems instead of handrolling the macro
- Use a separate variable for tracking the testcase count instead
of hardcoding the offset for the testcases
Enji Cooper [Sun, 20 Dec 2015 04:17:54 +0000 (04:17 +0000)]
Disable test-ctrig.t testcases which fail assertions on i386 [*]
Also, don't compile the exp2l(3) testcases on platforms that don't support the
libcall (technically only x86 right now). This makes this test buildable on
arm*/mips*/powerpc*
Tested on: stable/10 (amd64/i386), head (amd64/i386)
PR: 205446 [*]
MFC after: 1 week
X-MFC to: stable/10
Sponsored by: EMC / Isilon Storage Division
Add a safety net to reclaim mbufs when one of the mbuf zones become
exhausted.
It is possible for a bug in the code (or, theoretically, even unusual
network conditions) to exhaust all possible mbufs or mbuf clusters.
When this occurs, things can grind to a halt fairly quickly. However,
we currently do not call mb_reclaim() unless the entire system is
experiencing a low-memory condition.
While it is best to try to prevent exhaustion of one of the mbuf zones,
it would also be useful to have a mechanism to attempt to recover from
these situations by freeing "expendable" mbufs.
This patch makes two changes:
a) The patch adds a generic API to the UMA zone allocator to set a
function that should be called when an allocation fails because the
zone limit has been reached. Because of the way this function can be
called, it really should do minimal work.
b) The patch uses this API to try to free mbufs when an allocation
fails from one of the mbuf zones because the zone limit has been
reached. The function schedules a callout to run mb_reclaim().
Add dev.fb.X.resync sysctl to resync ARM framebuffer with VideoCore
Some applications (e.g. Kodi) use tvservice APIs to manage HDMI
modes, power state, EDID etc. directly through VideoCore. After
these manipulations VideoCore may loose its state and needs to be
resynced with ARM. Under Linux this problem is worked around using
fbset utility that recreates framebuffer. Since there is no fbset
utility in FreeBSD we provide sysctl for userland apps to get system
back into normal mode.
Warner Losh [Sat, 19 Dec 2015 19:13:38 +0000 (19:13 +0000)]
Create libstand version of uuid_from_string and uuid_to_string. The
normal libc versions of these functions use asprintf and sscanf, both
of which aren't available in the libstand world. It's easier to
rewrite these than to try to claw those functions into libstand.
Also include uuid_create_nil, since it's safe to include. These were
written from scratch, except for bits of comments that I got from the
libc version, which are acknowledged in the source.
Warner Losh [Sat, 19 Dec 2015 19:01:42 +0000 (19:01 +0000)]
Pass the UEFI system table into the kernel from the boot loader via
the FW_HANDLE metadata item. The kernel can get the rest of what it
needs from this.
Alan Cox [Sat, 19 Dec 2015 18:42:50 +0000 (18:42 +0000)]
Introduce a new mechanism for relocating virtual pages to a new physical
address and use this mechanism when:
1. kmem_alloc_{attr,contig}() can't find suitable free pages in the physical
memory allocator's free page lists. This replaces the long-standing
approach of scanning the inactive and inactive queues, converting clean
pages into PG_CACHED pages and laundering dirty pages. In contrast, the
new mechanism does not use PG_CACHED pages nor does it trigger a large
number of I/O operations.
2. on 32-bit MIPS processors, uma_small_alloc() and the pmap can't find
free pages in the physical memory allocator's free page lists that are
covered by the direct map. Tested by: adrian
3. ttm_bo_global_init() and ttm_vm_page_alloc_dma32() can't find suitable
free pages in the physical memory allocator's free page lists.
In the coming months, I expect that this new mechanism will be applied in
other places. For example, balloon drivers should use relocation to
minimize fragmentation of the guest physical address space.
Make vm_phys_alloc_contig() a little smarter (and more efficient in some
cases). Specifically, use vm_phys_segs[] earlier to avoid scanning free
page lists that can't possibly contain suitable pages.
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