Commit graph

480 commits

Author SHA1 Message Date
Kees van Reeuwijk
2db33d5c8c Fix some incorrect testing of bit flags. 2010-02-02 12:24:35 +00:00
Ben Gras
82ce09234b improve behaviour under VPC, fixes from nicolas tittley. 2010-01-31 18:29:51 +00:00
Kees van Reeuwijk
477b616fe8 Fixed a number of complaints about missing return statements.
Some cases were fixed by declaring the function void, others were fixed
by adding a return <value> statement, thereby avoiding potentially
incorrect behavior (usually in error handling).
Some enum correctness in boot.c.
2010-01-28 13:17:07 +00:00
Kees van Reeuwijk
2ba237cd4e Fixed a number of uses of uninitialized variables by adding assertions
or other sanity checks, code reshuffling, or fixing broken behavior.
2010-01-27 10:23:58 +00:00
Kees van Reeuwijk
c6eb51d66a Rewrite some functions to ANSI style. 2010-01-27 10:19:13 +00:00
Kees van Reeuwijk
b67f788eea Removed a number of useless #includes 2010-01-26 10:59:01 +00:00
Ben Gras
76f8132545 dec21140A ethernet driver for virtualpc, contributed by nicolas tittley. 2010-01-26 10:20:18 +00:00
David van Moolenbroek
1ff4a7dbc6 update DS label retrieve calls 2010-01-25 23:23:43 +00:00
Kees van Reeuwijk
a701e290f7 Removed unused symbols.
Made some functions PRIVATE, including ones that aren't used anywhere.
2010-01-25 18:13:48 +00:00
Kees van Reeuwijk
a7cee5bec4 Removed unused symbols.
Minor cleanups.
2010-01-22 22:01:08 +00:00
Erik van der Kouwe
9baf8059fb Make function key for RTL8139 optional 2010-01-21 10:15:22 +00:00
Kees van Reeuwijk
a2c8ae42e9 Remove iov_src variables, that were only declared and incremented,
but never used, all over the network drivers.
2010-01-20 21:31:59 +00:00
Kees van Reeuwijk
53f9f943a8 Rewrote a number of cases where variables were used before they initialized. 2010-01-20 17:59:48 +00:00
Kees van Reeuwijk
3a892d2312 Fixed some flawed defensive programming in audio drivers. 2010-01-18 21:37:24 +00:00
Kees van Reeuwijk
4faed703d9 Added a missing return statement in paired_grant().
Removed lots of unused variables.
2010-01-15 21:45:30 +00:00
Ben Gras
45eabea285 Fixed extern declaration from pointer to array 2010-01-15 12:08:57 +00:00
David van Moolenbroek
3537a7b59d Compile and install e1000 driver by default 2010-01-15 10:22:34 +00:00
Cristiano Giuffrida
c5b309ff07 Merge of Wu's GSOC 09 branch (src.20090525.r4372.wu)
Main changes:
- COW optimization for safecopy.
- safemap, a grant-based interface for sharing memory regions between processes.
- Integration with safemap and complete rework of DS, supporting new data types
  natively (labels, memory ranges, memory mapped ranges).
- For further information:
  http://wiki.minix3.org/en/SummerOfCode2009/MemoryGrants

Additional changes not included in the original Wu's branch:
- Fixed unhandled case in VM when using COW optimization for safecopy in case
  of a block that has already been shared as SMAP.
- Better interface and naming scheme for sys_saferevmap and ds_retrieve_map
  calls.
- Better input checking in syslib: check for page alignment when creating
  memory mapping grants.
- DS notifies subscribers when an entry is deleted.
- Documented the behavior of indirect grants in case of memory mapping.
- Test suite in /usr/src/test/safeperf|safecopy|safemap|ds/* reworked
  and extended.
- Minor fixes and general cleanup.
- TO-DO: Grant ids should be generated and managed the way endpoints are to make
sure grant slots are never misreused.
2010-01-14 15:24:16 +00:00
Kees van Reeuwijk
ad4c0ff698 Fixed a bug in apic.c that broke lapic_stop_timer().
Fixed bugs in liveupdate.c that rendered load_state_info() meaningless.
More informative error message in do_config() in service.c.
2010-01-13 14:44:19 +00:00
David van Moolenbroek
6a5660a431 PCI: add 64-bit BAR support 2010-01-13 10:52:47 +00:00
Kees van Reeuwijk
f595416e7f Fixed some missing return statements. 2010-01-11 14:22:29 +00:00
Cristiano Giuffrida
d1fd04e72a Initialization protocol for system services.
SYSLIB CHANGES:
- SEF framework now supports a new SEF Init request type from RS. 3 different
callbacks are available (init_fresh, init_lu, init_restart) to specify
initialization code when a service starts fresh, starts after a live update,
or restarts.

SYSTEM SERVICE CHANGES:
- Initialization code for system services is now enclosed in a callback SEF will
automatically call at init time. The return code of the callback will
tell RS whether the initialization completed successfully.
- Each init callback can access information passed by RS to initialize. As of
now, each system service has access to the public entries of RS's system process
table to gather all the information required to initialize. This design
eliminates many existing or potential races at boot time and provides a uniform
initialization interface to system services. The same interface will be reused
for the upcoming publish/subscribe model to handle dynamic 
registration / deregistration of system services.

VM CHANGES:
- Uniform privilege management for all system services. Every service uses the
same call mask format. For boot services, VM copies the call mask from init
data. For dynamic services, VM still receives the call mask via rs_set_priv
call that will be soon replaced by the upcoming publish/subscribe model.

RS CHANGES:
- The system process table has been reorganized and split into private entries
and public entries. Only the latter ones are exposed to system services.
- VM call masks are now entirely configured in rs/table.c
- RS has now its own slot in the system process table. Only kernel tasks and
user processes not included in the boot image are now left out from the system
process table.
- RS implements the initialization protocol for system services.
- For services in the boot image, RS blocks till initialization is complete and
panics when failure is reported back. Services are initialized in their order of
appearance in the boot image priv table and RS blocks to implements synchronous
initialization for every system service having the flag SF_SYNCH_BOOT set.
- For services started dynamically, the initialization protocol is implemented
as though it were the first ping for the service. In this case, if the
system service fails to report back (or reports failure), RS brings the service
down rather than trying to restart it.
2010-01-08 01:20:42 +00:00
David van Moolenbroek
ac9ab099c8 General cleanup:
- clean up kernel section of minix/com.h somewhat
- remove ALLOCMEM and VM_ALLOCMEM calls
- remove non-safecopy and minix-vmd support from Inet
- remove SYS_VIRVCOPY and SYS_PHYSVCOPY calls
- remove obsolete segment encoding in SYS_SAFECOPY*
- remove DEVCTL call, svrctl(FSDEVUNMAP), map_driverX
- remove declarations of unimplemented svrctl requests
- remove everything related to swapping to disk
- remove floppysetup.sh
- remove traces of rescue device
- update DESCRIBE.sh with new devices
- some other small changes
2010-01-05 19:39:27 +00:00
David van Moolenbroek
1489f14b37 Driver for Attansic L2 FastEthernet (atl2) 2009-12-30 22:42:44 +00:00
Cristiano Giuffrida
6f912993ff Share exec images in RS.
RS CHANGES:
- RS retains information on both labels and process names now. Labels for boot
processes are configured in the boot image priv table. Process names are
inherited from the in-kernel boot image table.
- When RS_REUSE is specified in do_up, RS looks for an existing slot having the
same process name as the one we are about to start. If one is found with
an in-memory copy of its executable image, the image is then shared between
the two processes, rather than copying it again. This behavior can be specified
by using 'service -r' when starting a system service from the command line.
2009-12-23 14:05:20 +00:00
David van Moolenbroek
123683d4a5 Console function keys and color support:
- if "debug_fkeys" boot monitor variable is set to 0:
  - pass Fn, Shift+Fn, Ctrl+Fn, Shift+Ctrl+Fn to applications
  - don't start IS
- update termcap files with function key, color, end key support
2009-12-22 23:30:50 +00:00
David van Moolenbroek
d5471320d9 another warning regression fix 2009-12-22 00:05:09 +00:00
David van Moolenbroek
92ae5c81ae Filter driver updates:
- optionally vectorize I/O requests to work around hardware bugs
- extend default buffer size to cover MFS's default maximum request size
- use mmap directly, rather than alloc_contig
- add 'nil' checksum type for comparison with layout
- minor style corrections
2009-12-21 23:30:01 +00:00
David van Moolenbroek
492d663444 TTY fixes:
- reenable code to restore screen/cursor at shutdown
- add proper signal checking logic
- lock to first console during shutdown
2009-12-21 23:19:01 +00:00
Cristiano Giuffrida
1f5841c8ed Basic System Event Framework (SEF) with ping and live update.
SYSLIB CHANGES:
- SEF must be used by every system process and is thereby part of the system
library.
- The framework provides a receive() interface (sef_receive) for system
processes to automatically catch known system even messages and process them.
- SEF provides a default behavior for each type of system event, but allows
system processes to register callbacks to override the default behavior.
- Custom (local to the process) or predefined (provided by SEF) callback
implementations can be registered to SEF.
- SEF currently includes support for 2 types of system events:
  1. SEF Ping. The event occurs every time RS sends a ping to figure out
  whether a system process is still alive. The default callback implementation
  provided by SEF is to notify RS back to let it know the process is alive
  and kicking.
  2. SEF Live update. The event occurs every time RS sends a prepare to update
  message to let a system process know an update is available and to prepare
  for it. The live update support is very basic for now. SEF only deals with
  verifying if the prepare state can be supported by the process, dumping the
  state for debugging purposes, and providing an event-driven programming
  model to the process to react to state changes check-in when ready to update.
- SEF should be extended in the future to integrate support for more types of
system events. Ideally, all the cross-cutting concerns should be integrated into
SEF to avoid duplicating code and ease extensibility. Examples include:
  * PM notify messages primarily used at shutdown.
  * SYSTEM notify messages primarily used for signals.
  * CLOCK notify messages used for system alarms.
  * Debug messages. IS could still be in charge of fkey handling but would
  forward the debug message to the target process (e.g. PM, if the user
  requested debug information about PM). SEF would then catch the message and
  do nothing unless the process has registered an appropriate callback to
  deal with the event. This simplifies the programming model to print debug
  information, avoids duplicating code, and reduces the effort to print
  debug information.

SYSTEM PROCESSES CHANGES:
- Every system process registers SEF callbacks it needs to override the default
system behavior and calls sef_startup() right after being started.
- sef_startup() does almost nothing now, but will be extended in the future to
support callbacks of its own to let RS control and synchronize with every
system process at initialization time.
- Every system process calls sef_receive() now rather than receive() directly,
to let SEF handle predefined system events.

RS CHANGES:
- RS supports a basic single-component live update protocol now, as follows:
  * When an update command is issued (via "service update *"), RS notifies the
  target system process to prepare for a specific update state.
  * If the process doesn't respond back in time, the update is aborted.
  * When the process responds back, RS kills it and marks it for refreshing.
  * The process is then automatically restarted as for a buggy process and can
  start running again.
  * Live update is currently prototyped as a controlled failure.
2009-12-21 14:12:21 +00:00
Cristiano Giuffrida
e090013056 Drivers and servers are simply known as services.
/etc CHANGES:
- /etc/drivers.conf has been renamed to /etc/system.conf. Every entry in 
the file is now marked as "service" rather than driver.
- user "service" has been added to password file /etc/passwd.
- docs/UPDATING updated accordingly, as well as every other mention to the old
drivers.conf in the system.

RS CHANGES:
- No more distinction between servers and drivers.
- RS_START has been renamed to RS_UP and the old legacy RS_UP and RS_UP_COPY
dropped.
- RS asks PCI to set / remove ACL entries only for services whose ACL properties
have been set. This change eliminates unnecessary warnings.
- Temporarily minimize the risk of potential races at boot time or when starting
a new service. Upcoming changes will eliminate races completely.
- General cleanup.
2009-12-17 01:53:26 +00:00
Ben Gras
26ba254a4a Intel Pro/1000 driver written by Niek Linnenbank. 2009-12-07 18:33:41 +00:00
Ben Gras
207621b6fb rtl8169 driver contributed by Jaswinder Singh Rajput. 2009-12-02 15:59:42 +00:00
David van Moolenbroek
be2087ecf9 Filter driver by Wu Bingzheng et al 2009-12-02 10:08:58 +00:00
David van Moolenbroek
30a7fe5fa9 libdriver changes:
- remove obsolete non-safecopy support
- merge libdriver and libdriver_asyn
- change standard reply model from sendnb to senda
2009-12-02 09:57:48 +00:00
David van Moolenbroek
ad259e92af Alternative VirtualBox/Lance driver workaround 2009-11-28 13:28:55 +00:00
David van Moolenbroek
86cc12b9a3 pci: extend NR_DRIVERS to cover all system processes 2009-11-09 10:43:46 +00:00
Tomas Hruby
ae75f9d4e5 Removal of the executable flag from files that cannot be executed
- 755 -> 644
2009-11-09 10:26:00 +00:00
Tomas Hruby
6eebc03f88 Fix for broken parsing of memory environment string in pci driver
- unfixed parsing could run away from the the string and fail on a correct
  string in complete_bars()

- it reanables the body of complete_bars()
2009-11-06 08:58:05 +00:00
Ben Gras
7e73260cf5 - enable remembering of device memory ranges set by PCI and
told to kernel
  - makes VM ask the kernel if a certain process is allowed
    to map in a range of physical memory (VM rounds it to page
    boundaries afterwards - but it's impossible to map anything
    smaller otherwise so I assume this is safe, i.e. there won't
    be anything else in that page; certainly no regular memory)
  - VM permission check cleanup (no more hardcoded calls, less
    hardcoded logic, more readable main loop), a loose end left
    by GQ
  - remove do_copy warning, as the ipc server triggers this but
    it's no more harmful than the special cases already excluded
    explicitly (VFS, PM, etc).
2009-11-03 11:12:23 +00:00
David van Moolenbroek
56d485c1d6 Various small IS, TTY, isofs fixes
IS:
- do not use p_getfrom_e for a process that is sending
- register with TTY only function keys that are used
- various header and formatting fixes
- proper shutdown code

TTY:
- restore proper Ctrl+F1 dump contents

isofs:
- don't even try to call sys_exit()
2009-11-02 23:04:52 +00:00
Ben Gras
5920582bde Don't check DMA_ST_ERROR before DMA_ST_INT is set (which is done too) 2009-10-22 14:31:29 +00:00
Ben Gras
96b608c3f2 throw out unnecessary drive1 thing 2009-10-19 15:45:43 +00:00
Ben Gras
6b01026668 newer at_wini.c (really incl atapi dma this time) 2009-10-19 15:45:14 +00:00
Ben Gras
0333f21d8e - reverse order of transfer command and DMA initiation - fixes DMA problem
that some hardware had
 - clear DMA_ST_INT after DMA - fixes infinite number of interrupts 
   that some hardware had
 - initial ATAPI DMA implementation, doesn't actually increase performance
   on my test hardware so possibly not right yet, disabled by default
2009-10-19 14:23:04 +00:00
Erik van der Kouwe
4c2f0eb22f Suppress spurious scancodes in VMWare 2009-10-18 07:12:42 +00:00
Ben Gras
abdf8e26fb moving OSS to a package. 2009-10-12 12:53:36 +00:00
Erik van der Kouwe
cb6dbfca2c Add lspci command and SI_PCI_INFO getsysinfo call 2009-10-09 10:48:46 +00:00
Ben Gras
5a0c76e64a connect OSS to the build (clean and install only) 2009-10-01 17:23:54 +00:00
David van Moolenbroek
6168bcefa6 Fix bios_wini using wrong size for vector (Bug#280, reported by John Peace) 2009-10-01 16:59:04 +00:00