to PCI bridge can be read be evaluating the _BBN method of the host to PCI
device. Unfortunately, there appear to be some lazy/ignorant/moronic/
whatever BIOS writers that return 0 for _BBN for all host to PCI bridges in
the system. On a system with a single host to PCI bridge this is not a
problem as the child bus of that single bridge will be bus 0 anyway.
However, on systems with multiple host to PCI bridges and l/i/m/w BIOS
writers this is a major problem resulting in all but the first host to
PCI bridge failing to attach. So, this adds a workaround.
If the _BBN of a host to PCI bridge is zero and pcib0 already exists
and is not us, the we use _ADR to look up our PCI function and slot
(we currently assume we are on bus 0) and use that to call
host_pcib_get_busno() to try and extract our bus number from config
registers on the host to PCI bridge device. If that fails, then we make
an evil assumption that ACPI's _SB_ namespace lays out the host to PCI
bridges in ascending order and use our pcib unit number as our bus
number.
Approved by: re
macro for use when parsing MADT tables, thus we always tried to set the
interrupt model to APIC. This proved to be harmful on UP machines with
IO APIC's (or for UP kernels on SMP machines) since the wrong interrupt
routing information would be returned.
Pointy hat to: jhb
Approved by: re (rwatson)
- Provide a routine in sched_4bsd to add this functionality.
- Use sched_pctcpu() in kern_proc, which is the one place outside of
sched_4bsd where the old pctcpu value was accessed directly.
Approved by: re
intended to be used by significant memory consumers so that they may drain
some of their caches.
Inspired by: phk
Approved by: re
Tested on: x86, alpha
These makefiles work when building in the sys/modules directory, but
not with the objdir stuff that buildkernel uses. This is because they
used -I../../../blah rather than -I${.CURDIR}/../../../blah.
# I didn't fix the abuse of CFLAGS to specify -g since I wanted the
# barest minimal change since we're in a code freeze.
Approved by: make buildkernel...
Hat for armchair anarchists: core member fixing src tree damage
data in the scheduler independant structures (proc, ksegrp, kse, thread).
- Implement unused stubs for this mechanism in sched_4bsd.
Approved by: re
Reviewed by: luigi, trb
Tested on: x86, alpha
Has been seen to work on several cards and communicating with
several mobile phones to use them as modems etc.
We are still talking with 3com to try get them to allow us to include
the firmware for their pccard in the driver but the driver is here..
In the mean time
it can be downloaded from the 3com website and loaded using the utility
bt3cfw(8) (supplied) (instructions in the man page)
Not yet linked to the build
Submitted by: Maksim Yevmenkin <myevmenk@exodus.net>
Approved by: re
bridge.c nor if_ethersubr.c depend on IPFIREWALL.
Restore the use of fw_one_pass in if_ethersubr.c
ipfw.8 will be updated with a separate commit.
Approved by: re
in struct proc. While the process label is actually stored in the
struct ucred pointed to by p_ucred, there is a need for transient
storage that may be used when asynchronous (deferred) updates need to
be performed on the "real" label for locking reasons. Unlike other
label storage, this label has no locking semantics, relying on policies
to provide their own protection for the label contents, meaning that
a policy leaf mutex may be used, avoiding lock order issues. This
permits policies that act based on historical process behavior (such
as audit policies, the MAC Framework port of LOMAC, etc) can update
process properties even when many existing locks are held without
violating the lock order. No currently committed policies implement use
of this label storage.
Approved by: re
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
in half because of reports that under heavy load the kernel could
exhaust its memory pool. The limit is now (desiredvnodes * 4)
rather than (desiredvnodes * 8), so it will still scale with
larger systems, just not as quickly.
Sponsored by: DARPA & NAI Labs.
not have hit the disk and the dependencies cannot be unrolled.
In this case, the system will mark the buffer as dirty again so
that the write can be retried in the future. When the write
succeeds or the system gives up on the buffer and marks it as
invalid (B_INVAL), the dependencies will be cleared.
Sponsored by: DARPA & NAI Labs.
checks permit policy modules to augment the system policy for permitting
kld operations. This permits policies to limit access to kld operations
based on credential (and other) properties, as well as to perform checks
on the kld being loaded (integrity, etc).
Approved by: re
Obtained from: TrustedBSD Project
Sponsored by: DARPA, Network Associates Laboratories
leader wasn't exiting during a fork; instead, do remember to release
the lock avoiding lock order reversals and recursion panic.
Reported by: "Joel M. Baldwin" <qumqats@outel.org>
after configure() has run. Only create the device if ofwcons is the
highest priority console. Make a dev alias with the same name as the
firmware output-device property.
also add rusage time in thread mailbox.
2. Minor change for thread limit code in thread_user_enter(),
fix typo in kse_release() last I committed.
Reviewed by: deischen, mini
- Clear the PG_WRITEABLE flag in pmap_changebit() if write access is
being removed. Return immediately if write access is being removed and
PG_WRITEABLE is already clear.
Note: For efficiency, pmap_changebit() should be replaced by a function
similar to sparc64's pmap_clear_write().
- Clear the PG_WRITEABLE flag in pmap_page_protect() if write access is
being removed. Return immediately if write access is being removed and
PG_WRITEABLE is already clear.
so that it can be reused elsewhere (there is a number of places
where it can be useful). This also trims some 200 lines from
the body of ip_output(), which helps readability a bit.
(This change was discussed a few weeks ago on the mailing lists,
Julian agreed, silence from others. It is not a functional change,
so i expect it to be ok to commit it now but i am happy to back it
out if there are objections).
While at it, fix some function headers and replace m_copy() with
m_copypacket() where applicable.
MFC after: 1 week
2. Avoid referencing bcopy() and bzero(), since they may not be in
scope.
Request by: bde (1)
Submitted by: wollman (2)
Reviewed by: archie, bde
PR: 43270
