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Commit Graph

455 Commits

Author SHA1 Message Date
Mike Barcroft
dd1b6791a8 Now that _BSD_CLK_TCK_ and _BSD_CLOCKS_PER_SEC_ are the same on all
architectures, move the definition directly into <time.h> and finish
the removal of <machine/ansi.h>.
2002-09-03 00:06:58 +00:00
Jake Burkholder
f36ba45234 Added fields for VM_MIN_ADDRESS, PS_STRINGS and stack protections to
sysentvec.  Initialized all fields of all sysentvecs, which will allow
them to be used instead of constants in more places.  Provided stack
fixup routines for emulations that previously used the default.
2002-09-01 21:41:24 +00:00
Peter Wemm
31cdffc6d8 Take a shot at fixing up a whole stack of style and other embarresing
unforced errors that Bruce identified.  I have not yet addressed all of
his concerns.
2002-08-31 03:33:32 +00:00
Peter Wemm
447b3772dc Change hw.physmem and hw.usermem to unsigned long like they used to be
in the original hardwired sysctl implementation.

The buf size calculator still overflows an integer on machines with large
KVA (eg: ia64) where the number of pages does not fit into an int.  Use
'long' there.

Change Maxmem and physmem and related variables to 'long', mostly for
completeness.  Machines are not likely to overflow 'int' pages in the
near term, but then again, 640K ought to be enough for anybody.  This
comes for free on 32 bit machines, so why not?
2002-08-30 04:04:37 +00:00
Jake Burkholder
bafbd49201 Renamed poorly named setregs to exec_setregs. Moved its prototype to
imgact.h with the other exec support functions.
2002-08-29 06:17:48 +00:00
Mike Barcroft
646d21a5a3 Since arm and powerpc aren't far enough to set stathz, take a
preemptive strike and change _BSD_CLK_TCK_ and _BSD_CLOCKS_PER_SEC_
to 128.

Approved by:	benno
2002-08-26 03:44:11 +00:00
Alan Cox
6508a194aa o Retire pmap_pageable(). It's an advisory routine that none
of our platforms implements.
2002-08-25 04:20:05 +00:00
Mike Barcroft
bd8e0716d9 Move several MI types from <machine/_types.h> to <sys/_types.h>.
These types are unlikely to ever become very MD.  They include:
clockid_t, ct_rune_t, fflags_t, intrmask_t, mbstate_t, off_t, pid_t,
rune_t, socklen_t, timer_t, wchar_t, and wint_t.

While moving them, make a few adjustments (submitted by bde):
o __ct_rune_t needs to be precisely `int', not necessarily __int32_t,
  since the arg type of the ctype functions is int.
o __rune_t, __wchar_t and __wint_t inherit this via a typedef of
  __ct_rune_t.
o Some minor wording changes in the comment blocks for ct_rune_t and
  mbstate_t.

Submitted by:	bde (partially)
2002-08-23 16:49:06 +00:00
Mike Barcroft
abbd890233 o Merge <machine/ansi.h> and <machine/types.h> into a new header
called <machine/_types.h>.
o <machine/ansi.h> will continue to live so it can define MD clock
  macros, which are only MD because of gratuitous differences between
  architectures.
o Change all headers to make use of this.  This mainly involves
  changing:
    #ifdef _BSD_FOO_T_
    typedef	_BSD_FOO_T_	foo_t;
    #undef _BSD_FOO_T_
    #endif
  to:
    #ifndef _FOO_T_DECLARED
    typedef	__foo_t	foo_t;
    #define	_FOO_T_DECLARED
    #endif

Concept by:	bde
Reviewed by:	jake, obrien
2002-08-21 16:20:02 +00:00
Robert Watson
9ca435893b In order to better support flexible and extensible access control,
make a series of modifications to the credential arguments relating
to file read and write operations to cliarfy which credential is
used for what:

- Change fo_read() and fo_write() to accept "active_cred" instead of
  "cred", and change the semantics of consumers of fo_read() and
  fo_write() to pass the active credential of the thread requesting
  an operation rather than the cached file cred.  The cached file
  cred is still available in fo_read() and fo_write() consumers
  via fp->f_cred.  These changes largely in sys_generic.c.

For each implementation of fo_read() and fo_write(), update cred
usage to reflect this change and maintain current semantics:

- badfo_readwrite() unchanged
- kqueue_read/write() unchanged
  pipe_read/write() now authorize MAC using active_cred rather
  than td->td_ucred
- soo_read/write() unchanged
- vn_read/write() now authorize MAC using active_cred but
  VOP_READ/WRITE() with fp->f_cred

Modify vn_rdwr() to accept two credential arguments instead of a
single credential: active_cred and file_cred.  Use active_cred
for MAC authorization, and select a credential for use in
VOP_READ/WRITE() based on whether file_cred is NULL or not.  If
file_cred is provided, authorize the VOP using that cred,
otherwise the active credential, matching current semantics.

Modify current vn_rdwr() consumers to pass a file_cred if used
in the context of a struct file, and to always pass active_cred.
When vn_rdwr() is used without a file_cred, pass NOCRED.

These changes should maintain current semantics for read/write,
but avoid a redundant passing of fp->f_cred, as well as making
it more clear what the origin of each credential is in file
descriptor read/write operations.

Follow-up commits will make similar changes to other file descriptor
operations, and modify the MAC framework to pass both credentials
to MAC policy modules so they can implement either semantic for
revocation.

Obtained from:	TrustedBSD Project
Sponsored by:	DARPA, NAI Labs
2002-08-15 20:55:08 +00:00
Alan Cox
dde5f1949f o Introduce pmap_page_is_mapped(). Its purpose is to obsolete
the PG_MAPPED flag.
2002-08-07 19:37:22 +00:00
Alan Cox
7ffcf9ec77 o Don't set PG_MAPPED or PG_WRITEABLE when a page is mapped
using pmap_kenter() or pmap_qenter().
 o Use VM_ALLOC_WIRED in pmap_new_thread().
2002-08-05 00:04:18 +00:00
Marc Fonvieille
c0727dcbfe Fix the link to the Handbook 2002-08-01 17:21:18 +00:00
Mike Barcroft
49545b3891 Create a new header <machine/_stdint.h> for storing MD parts of
<stdint.h>.  Previously, parts were defined in <machine/ansi.h> and
<machine/limits.h>.  This resulted in two problems:
  (1) Defining macros in <machine/ansi.h> gets in the way of that
      header only defining types.
  (2) Defining C99 limits in <machine/limits.h> adds pollution to
      <limits.h>.
2002-07-29 17:41:23 +00:00
Peter Wemm
b618108fff de-count pci 2002-07-23 06:38:47 +00:00
Peter Wemm
d50f790fa4 No more NO_WERROR for the kernel. It's still possible though, but
seperate from NO_WERROR which is easily mixed up with in userland.
2002-07-22 00:21:17 +00:00
Peter Wemm
fc147d7fe9 Add explicit unit count on 'device pci' for ahc/ahd 2002-07-21 23:07:31 +00:00
Peter Wemm
3ebc124838 Infrastructure tweaks to allow having both an Elf32 and an Elf64 executable
handler in the kernel at the same time.  Also, allow for the
exec_new_vmspace() code to build a different sized vmspace depending on
the executable environment.  This is a big help for execing i386 binaries
on ia64.   The ELF exec code grows the ability to map partial pages when
there is a page size difference, eg: emulating 4K pages on 8K or 16K
hardware pages.

Flesh out the i386 emulation support for ia64.  At this point, the only
binary that I know of that fails is cvsup, because the cvsup runtime
tries to execute code in pages not marked executable.

Obtained from:  dfr (mostly, many tweaks from me).
2002-07-20 02:56:12 +00:00
Benno Rice
aa39961e37 Remove the statically allocated array that holds OpenFirmware memory mappings
during pmap_bootstrap.  Instead, temporarily help ourselves to some memory
from phys_avail since we won't need it post-boostrap.
2002-07-18 12:43:08 +00:00
John Baldwin
dde0429505 Various comment and minor style fixes. No actual content changes.
Inspired by:	bde
2002-07-16 18:20:17 +00:00
Jonathan Mini
08b38412c8 Add additional cred_free_thread() calls that I had missed the first time.
Pointed out by:	jhb
2002-07-13 04:36:50 +00:00
John Baldwin
33d7ad1abe Set the thread state of the newly chosen to run thread to TDS_RUNNING in
choosethread() in MI C code instead of doing it in in assembly in all the
various cpu_switch() functions.  This fixes problems on ia64 and sparc64.

Reviewed by:	julian, peter, benno
Tested on:	i386, alpha, sparc64
2002-07-12 18:34:22 +00:00
Mike Barcroft
f889202ba4 Remove label_t and physadr, which seem to have never been used in
FreeBSD.

Submitted by:	bde
2002-07-10 15:47:59 +00:00
Benno Rice
99bc8c72f7 Add setjmp (needed for DDB). 2002-07-10 12:26:17 +00:00
Benno Rice
45b4eca56d Add DDB support. 2002-07-10 12:21:54 +00:00
Benno Rice
c3e9df1087 - Make sure we don't trample our metadata pointer in our initial bootstrap.
- Load metadata parameters.
2002-07-10 12:16:48 +00:00
Benno Rice
db015117ba Metadata definitions. 2002-07-10 12:14:23 +00:00
Benno Rice
d030984167 Remove some diagnostic code that snuck in. 2002-07-10 09:48:43 +00:00
Benno Rice
ec3772f3fd Remove some dead code. 2002-07-10 09:46:49 +00:00
Benno Rice
3af09242a8 Remove some unused includes. 2002-07-10 09:46:24 +00:00
Benno Rice
c5f0b00c65 Bring this in line with what I'm using. 2002-07-09 13:46:27 +00:00
Benno Rice
3495845eec Add an implementation for pmap_zero_page_area. 2002-07-09 13:44:24 +00:00
Benno Rice
b98807d45e Add the OF_getetheraddr function required by if_gem. 2002-07-09 13:43:06 +00:00
Benno Rice
87054a7182 Tidy up trap vector and external interrupt setup. 2002-07-09 13:40:37 +00:00
Benno Rice
98f8e6c099 Driver for the Apple UniNorth Host-PCI bridge.
This is in a PowerMac-specific subdirectory as it is hoped that we will support
more than just the PowerMac platform.
2002-07-09 13:34:09 +00:00
Benno Rice
2686f05627 OpenFirmware PCI support code.
This and the sparc64 equivalent should probably be merged at some point.
2002-07-09 13:27:58 +00:00
Benno Rice
7ade8bb67c Changes for KSE3.
Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-07-09 12:57:23 +00:00
Benno Rice
f5db3c1695 Add this file, which I forgot in a previous commit.
This relates to the trap/interrupt cleanup.

Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-07-09 12:50:58 +00:00
Benno Rice
25b60a3b49 1) Add busdma machdep code.
2) Add bus_pio.h and bus_memio.h (which do nothing).

Submitted by:	Peter Grehan <peterg@ptree32.com.au> (1)
2002-07-09 12:47:14 +00:00
Benno Rice
ca01920852 Driver for OpenPIC compatible interrupt controllers.
It's fairly PowerMac specific at the moment, but that should be fixable.
2002-07-09 11:26:10 +00:00
Benno Rice
7abc408094 - Add the "compatible" property to the list that we keep in ivars.
- Add interrupt alloc/setup/teardown/dealloc support, via whichever PIC
  OpenFirmware gives us.
2002-07-09 11:13:33 +00:00
Benno Rice
f6a7723dff Add interrupt handling support code.
I've tried to make this fairly platform-independant as some PowerPC platforms
may not have openpic-style interrupt controllers.  This may not have the best
performance but it works for now.
2002-07-09 11:12:20 +00:00
Mike Barcroft
ba5fe51088 Move __offsetof() macro from <machine/ansi.h> to <sys/cdefs.h>. It's
hardly MD, since all our platforms share the same macro.  It's not
really compiler dependent either, but this helps in reducing
<machine/ansi.h> to only type definitions.
2002-07-08 16:43:35 +00:00
Peter Wemm
a58b3a6878 Add a special page zero entry point intended to be called via the single
threaded VM pagezero kthread outside of Giant.  For some platforms, this
is really easy since it can just use the direct mapped region.  For others,
IPI sending is involved or there are other issues, so grab Giant when
needed.

We still have preemption issues to deal with, but Alan Cox has an
interesting suggestion on how to minimize the problem on x86.

Use Luigi's hack for preserving the (lack of) priority.

Turn the idle zeroing back on since it can now actually do something useful
outside of Giant in many cases.
2002-07-08 04:24:26 +00:00
Peter Wemm
a136efe9b6 Collect all the (now equivalent) pmap_new_proc/pmap_dispose_proc/
pmap_swapin_proc/pmap_swapout_proc functions from the MD pmap code
and use a single equivalent MI version.  There are other cleanups
needed still.

While here, use the UMA zone hooks to keep a cache of preinitialized
proc structures handy, just like the thread system does.  This eliminates
one dependency on 'struct proc' being persistent even after being freed.
There are some comments about things that can be factored out into
ctor/dtor functions if it is worth it.  For now they are mostly just
doing statistics to get a feel of how it is working.
2002-07-07 23:05:27 +00:00
Peter Wemm
1f0b8b7582 Update for post-kse3 pmap kthread allocation changes 2002-07-07 22:56:31 +00:00
Mike Barcroft
a19d429398 Since printf(3) now supports the `j' conversion specifier, use that
when printing intmax_t and uintmax_t.

Forgotten by:	mike
Noticed by:	bde
2002-06-30 05:48:03 +00:00
Benno Rice
71cf3a3574 Add an inline to call eieio.
("Enforce In-order Execution of I/O".  I am not making this up.)
2002-06-29 10:00:07 +00:00
Benno Rice
bfcf2ca287 We don't need to clear RI in the MSR when entering a critical section. 2002-06-29 09:55:57 +00:00
Benno Rice
14d617bf1f in_cksum et al.
Submitted by:	Peter Grehan <peterg@ptree32.com.au>
2002-06-29 09:49:26 +00:00