Commit Graph

290 Commits

Author SHA1 Message Date
Emery Hemingway
1fce8d0d74 default ahci_drv and part_blk Block sessions to read-only
Add a "writeable" policy option to the ahci_drv and part_blk Block
servers and default from writeable to ready-only. Should a policy
permit write acesss the session request argument "writeable" may still
downgrade a session to ready-only.

Fix #2469
2017-08-28 16:49:51 +02:00
Christian Prochaska
ee352abc56 run: add Xen support
When building Genode on a Linux system running in a Xen Dom0, the 'xen'
run target can run a Genode scenario in a Xen DomU.

Usage: in build/x86_*/etc/build.conf, define:

RUN_OPT = --include boot_dir/$(KERNEL) --include image/iso --include power_on/xen --include log/xen --include power_off/xen

The Xen DomU runs in HVM mode and loads Genode from an ISO image. Serial
log output is printed to the console and graphical output is shown in an
SDL window.

The Xen DomU ist managed using the 'xl' command line tool and it is
possible to add configuration options in the 'xen_args' variable in a run
script. Common options are:

- disabling the graphical output:

  append xen_args { sdl="0" }

- configuring a network device:

  append xen_args { vif=\["model=e1000,mac=02:00:00:00:01:01,bridge=xenbr0"\] }

- configuring USB input devices:

  append xen_args { usbdevice=\["mouse","keyboard"\] }

Note: the 'xl' tool requires super-user permissions and interactive
password input can be troublesome in combination with 'expect' and is not
practical for automatic tests. For this reason, the current implementation
assumes that no password input is needed when running 'sudo xl', which can
be achieved by creating a file '/etc/sudoers.d/xl' with the content
'user ALL=(root) NOPASSWD: /usr/sbin/xl'
(where 'user' is the Linux user name).

Fixes #2504
2017-08-28 16:49:48 +02:00
Christian Prochaska
e90d21c9ab wifi_drv: add missing 'Libc::with_libc()'
Fixes #2506
2017-08-28 16:49:45 +02:00
Christian Prochaska
b0935ef9b2 VFS: nonblocking interface
The VFS library can be used in single-threaded or multi-threaded
environments and depending on that, signals are handled by the same thread
which uses the VFS library or possibly by a different thread. If a VFS
plugin needs to block to wait for a signal, there is currently no way
which works reliably in both environments.

For this reason, this commit makes the interface of the VFS library
nonblocking, similar to the File_system session interface.

The most important changes are:

- Directories are created and opened with the 'opendir()' function and the
  directory entries are read with the recently introduced 'queue_read()'
  and 'complete_read()' functions.

- Symbolic links are created and opened with the 'openlink()' function and
  the link target is read with the 'queue_read()' and 'complete_read()'
  functions and written with the 'write()' function.

- The 'write()' function does not wait for signals anymore. This can have
  the effect that data written by a VFS library user has not been
  processed by a file system server yet when the library user asks for the
  size of the file or closes it (both done with RPC functions at the file
  system server). For this reason, a user of the VFS library should
  request synchronization before calling 'stat()' or 'close()'. To make
  sure that a file system server has processed all write request packets
  which a client submitted before the synchronization request,
  synchronization is now requested at the file system server with a
  synchronization packet instead of an RPC function. Because of this
  change, the synchronization interface of the VFS library is now split
  into 'queue_sync()' and 'complete_sync()' functions.

Fixes #2399
2017-08-28 16:49:38 +02:00
Martin Stein
47dc708887 usb rpi: get rid of local hardware timer
We used a hardware timer locally in the RPI USB driver because a timer
connection was not precise enough to fullfill the host controllers
requirements.

With the modern timer connection interface, however, reading out time at
a connection is microseconds precise and we can remove the local timer.
But we cannot use the same timer connection for doing legacy-interface
stuff like usleep (currently used in LX kit) and modern-interface stuff
like curr_time. Thus, we open two connections for now.

Ref #2400
2017-08-23 14:08:37 +02:00
Christian Helmuth
8b073f46df depot: update recipe hashes 2017-08-18 10:25:28 +02:00
Alexander Boettcher
6f8cc92ce0 run: disable some scripts in autopilot mode
because of the limit hardware features of our x86 32bit test hardware
2017-08-18 10:24:48 +02:00
Sebastian Sumpf
5adda2d934 usb: add asynchronous interface release
This became necessary, since URBs may still be pending upon interface
release.

Fixes #2466
2017-08-17 11:04:22 +02:00
Christian Helmuth
31cffe52a6 usb_terminal: remove obsolete vendor/product enums 2017-08-17 11:04:20 +02:00
Norman Feske
50a1b84308 usb_drv: wait for first valid config
This patch defers the initialization of the USB driver until its
configuration is valid.
2017-08-17 10:59:44 +02:00
Norman Feske
0d1be4abe2 depot: update recipe hashes 2017-06-29 12:00:04 +02:00
Christian Helmuth
892ede515f depot: update recipe hashes 2017-05-31 16:18:01 +02:00
Christian Helmuth
8bd0efced6 Remove obsolete RAM/CAP services from run scripts
Adapted launchpad and also the rm_fault and resource_request tests.

Issue #2407
2017-05-31 13:16:22 +02:00
Stefan Kalkowski
632ef28463 os: removal of deprecated os/config.h (fix #2431) 2017-05-31 13:16:22 +02:00
Christian Helmuth
a431657851 lxip: correct msghdr initialization 2017-05-31 13:16:21 +02:00
Stefan Kalkowski
0fb672b493 run: use default Qemu memory size for x86
Fix #2428
2017-05-31 13:16:19 +02:00
Emery Hemingway
c1edfa5d46 lib/vfs/lxip: return READ_QUEUED from read_queued and complete_read
Ref #2406
2017-05-31 13:16:17 +02:00
Christian Helmuth
d0bc389e93 vfs_lxip: correctly initialize iov on remote-file read 2017-05-31 13:16:16 +02:00
Josef Söntgen
5b6735e1c9 lxip: fix iovec iter operations 2017-05-31 13:16:15 +02:00
Martin Stein
c70fed29f7 os/timer: interpolate time via timestamps
Previously, the Genode::Timer::curr_time always used the
Timer_session::elapsed_ms RPC as back end.  Now, Genode::Timer reads
this remote time only in a periodic fashion independently from the calls
to Genode::Timer::curr_time. If now one calls Genode::Timer::curr_time,
the function takes the last read remote time value and adapts it using
the timestamp difference since the remote-time read. The conversion
factor from timestamps to time is estimated on every remote-time read
using the last read remote-time value and the timestamp difference since
the last remote time read.

This commit also re-works the timeout test. The test now has two stages.
In the first stage, it tests fast polling of the
Genode::Timer::curr_time. This stage checks the error between locally
interpolated and timer-driver time as well as wether the locally
interpolated time is monotone and sufficiently homogeneous. In the
second stage several periodic and one-shot timeouts are scheduled at
once. This stage checks if the timeouts trigger sufficiently precise.

This commit adds the new Kernel::time syscall to base-hw. The syscall is
solely used by the Genode::Timer on base-hw as substitute for the
timestamp. This is because on ARM, the timestamp function uses the ARM
performance counter that stops counting when the WFI (wait for
interrupt) instruction is active. This instruction, however is used by
the base-hw idle contexts that get active when no user thread needs to
be scheduled.  Thus, the ARM performance counter is not a good choice for
time interpolation and we use the kernel internal time instead.

With this commit, the timeout library becomes a basic library. That means
that it is linked against the LDSO which then provides it to the program it
serves. Furthermore, you can't use the timeout library anymore without the
LDSO because through the kernel-dependent LDSO make-files we can achieve a
kernel-dependent timeout implementation.

This commit introduces a structured Duration type that shall successively
replace the use of Microseconds, Milliseconds, and integer types for duration
values.

Open issues:

* The timeout test fails on Raspberry PI because of precision errors in the
  first stage. However, this does not render the framework unusable in general
  on the RPI but merely is an issue when speaking of microseconds precision.

* If we run on ARM with another Kernel than HW the timestamp speed may
  continuously vary from almost 0 up to CPU speed. The Timer, however,
  only uses interpolation if the timestamp speed remained stable (12.5%
  tolerance) for at least 3 observation periods. Currently, one period is
  100ms, so its 300ms. As long as this is not the case,
  Timer_session::elapsed_ms is called instead.

  Anyway, it might happen that the CPU load was stable for some time so
  interpolation becomes active and now the timestamp speed drops. In the
  worst case, we would now have 100ms of slowed down time. The bad thing
  about it would be, that this also affects the timeout of the period.
  Thus, it might "freeze" the local time for more than 100ms.

  On the other hand, if the timestamp speed suddenly raises after some
  stable time, interpolated time can get too fast. This would shorten the
  period but nonetheless may result in drifting away into the far future.
  Now we would have the problem that we can't deliver the real time
  anymore until it has caught up because the output of Timer::curr_time
  shall be monotone. So, effectively local time might "freeze" again for
  more than 100ms.

  It would be a solution to not use the Trace::timestamp on ARM w/o HW but
  a function whose return value causes the Timer to never use
  interpolation because of its stability policy.

Fixes #2400
2017-05-31 13:16:11 +02:00
Norman Feske
4d442bca30 Streamline exception types
This patch reduces the number of exception types by facilitating
globally defined exceptions for common usage patterns shared by most
services. In particular, RPC functions that demand a session-resource
upgrade not longer reflect this condition via a session-specific
exception but via the 'Out_of_ram' or 'Out_of_caps' types.

Furthermore, the 'Parent::Service_denied', 'Parent::Unavailable',
'Root::Invalid_args', 'Root::Unavailable', 'Service::Invalid_args',
'Service::Unavailable', and 'Local_service::Factory::Denied' types have
been replaced by the single 'Service_denied' exception type defined in
'session/session.h'.

This consolidation eases the error handling (there are fewer exceptions
to handle), alleviates the need to convert exceptions along the
session-creation call chain, and avoids possible aliasing problems
(catching the wrong type with the same name but living in a different
scope).
2017-05-31 13:16:07 +02:00
Norman Feske
773e08976d Assign cap quotas in run scripts and recipes
Issue #2398
2017-05-31 13:16:06 +02:00
Norman Feske
6609aafb05 Replace Quota_exceeded by Insufficient_ram_quota
This patch replaces the 'Parent::Quota_exceeded',
'Service::Quota_exceeded', and 'Root::Quota_exceeded' exceptions
by the single 'Insufficient_ram_quota' exception type.

Furthermore, the 'Parent' interface distinguished now between
'Out_of_ram' (the child's RAM is exhausted) from
'Insufficient_ram_quota' (the child's RAM donation does not suffice to
establish the session).

This eliminates ambiguities and removes the need to convert exception
types along the path of the session creation.

Issue #2398
2017-05-31 13:16:05 +02:00
Christian Helmuth
e9b42a127b dde_linux: download libnl from github.com/thom311
The old download location is very shaky resp. currently unavailable and
also other projects (e.g., Gentoo and Linux From Scratch) use this
location. Note, the archive hash does _not_ change.
2017-05-31 13:16:02 +02:00
Johannes Kliemann
aac0ac7c63 dde_linux: kernel-version independent file lists
Replace the version dependent file lists with generic ones to simplify
kernel version changes.

Fixes #2368
2017-05-31 13:16:02 +02:00
Norman Feske
03d7208386 Turn posix lib into shared library
By building the posix library as shared object with an ABI, we
effectively decouple posix-using programs from the library
implementation (which happens to depend on several os-level APIs such as
the VFS).
2017-05-31 13:16:02 +02:00
Stefan Kalkowski
6106e64aac base: remove include/spec/* other than ISA
This commit moves the headers residing in `repos/base/include/spec/*/drivers`
to `repos/base/include/drivers/defs` or repos/base/include/drivers/uart`
respectively. The first one contains definitions about board-specific MMIO
iand RAM addresses, or IRQ lines. While the latter contains device driver
code for UART devices. Those definitions are used by driver implementations
in `repos/base-hw`, `repos/os`, and `repos/dde-linux`, which now need to
include them more explicitely.

This work is a step in the direction of reducing 'SPEC' identifiers overall.

Ref #2403
2017-05-31 13:16:01 +02:00
Alexander Boettcher
80eddd8731 usb: add OHCI support
Fixes #2357
2017-05-31 13:16:00 +02:00
Christian Helmuth
4ab2b85437 lxip: support large sendmsg (like recvmsg)
Add missing socket wait-queue head on demand.
2017-05-31 13:15:58 +02:00
Christian Helmuth
3b5c16e307 lxip: poll/read_ready for all socket fs files 2017-05-31 13:15:58 +02:00
Christian Helmuth
1d99e7ede9 base: classify signals as I/O and application level
Fixes #2363
2017-05-31 13:15:58 +02:00
Christian Helmuth
f7313e841d vfs_lxip: always allow broadcast packets for UDP 2017-05-31 13:15:57 +02:00
Norman Feske
b58fbe5ba5 Depot-archive recipes
Issue #2339
2017-05-31 13:15:56 +02:00
Alexander Boettcher
f52eec5af7 intel_fb: avoid deprecated warnings
Issue #1987
2017-05-31 13:15:55 +02:00
Christian Helmuth
6b2d8a740d dde_linux: explicitly build C89 with GNU extensions
Issue #2372
2017-05-31 13:15:53 +02:00
Christian Helmuth
c475edccfc dde_linux: use internal setjmp/longjmp only 2017-05-02 15:29:03 +02:00
Christian Helmuth
67f22a6c90 Fix key count in input test 2017-05-02 15:29:02 +02:00
Norman Feske
7200ab2935 usb_drv: disambiguate header scan locations
When creating a source archive for the USB driver, both the contrib and
Genode-specific source codes are merged into a single directory
structure. In this case, the original way of determining the Linux
source code to scan for #include directives would apply the scanning to
Genode-specific source codes too. This patch tightens the search
criterion such that only Linux source codes are processed.
2017-05-02 15:29:02 +02:00
Norman Feske
075c32409a usb_drv: Add missing definition of __aligned macro
This macro is implicitly pulled in by libc-setjmp (via the libc's
cdefs.h). However, apparently not all sources include <setjmp.h>.
Unfortunately, for sources that do, this change produces a
double-definition warning. We should fix it by removing the dependency
from the libc's setjmp.
2017-05-02 15:29:02 +02:00
Alexander Boettcher
2668a55688 usb_drv: fix various nullpointer in raw binding
during reset of a VM, usb device ejected before hand:

ded! amount=27941, size=4096, consumed=24576
Warning: could not allocate metadata
[init -> nit_fb1] using xywh=(0,0,2560,1440)
[init -> usb_drv] dev_info: new SuperSpeed USB device number 2 using xhci_hcd
[init -> vbox1] Attach USB device 0002:0002 (vendor=951, product=16a5)
Warning: Quota exceeded! amount=36133, size=4096, consumed=32768
Warning: could not allocate metadata
[init -> nit_fb1] using xywh=(0,0,2560,1440)
[init -> vbox1] EMT-0    VMMDev: Guest Additions capability report: (0x5 -> 0x5) seamless: yes, hostWindowMapping: no, graphics: yes
[init -> vbox1] EMT-0    VMMDev: Guest Additions capability report: (0x5 -> 0x0) seamless: no, hostWindowMapping: no, graphics: no
[init -> vbox1] EMT-0    VMMDev: Guest Additions capability report: (0x0 -> 0x0) seamless: no, hostWindowMapping: no, graphics: no
[init -> vbox1] EMT-1    VMMDev: Guest Additions capability report: (0x0 -> 0x0) seamless: no, hostWindowMapping: no, graphics: no
Warning: Quota exceeded! amount=44325, size=4096, consumed=40960
Warning: could not allocate metadata
[init -> vbox1] fb resize : [0] 2560x1440 -> 1024x768
no RM attachment (READ pf_addr=0x4 pf_ip=0x105367e from pager_object: pd='init -> usb_drv' thread='ep')
page fault, pd='init -> usb_drv' thread='ep' cpu=0 ip=0x105367e address=0x4 stack pointer=0xa07fef18 qualifiers=0x4 irUwp reason=1

Seen during #2338
2017-05-02 15:28:55 +02:00
Christian Helmuth
cb43e04691 ldso: defer execution of static constructors
Ldso now does not automatically execute static constructors of the
binary and shared libraries the binary depends on. If static
construction is required (e.g., if a shared library with constructor is
used or a compilation unit contains global statics) the component needs
to execute the constructors explicitly in Component::construct() via
Genode::Env::exec_static_constructors().

In the case of libc components this is done by the libc startup code
(i.e., the Component::construct() implementation in the libc).

The loading of shared objects at runtime is not affected by this change
and constructors of those objects are executed immediately.

Fixes #2332
2017-03-24 16:20:04 +01:00
Christian Helmuth
88db3c0df7 Fix some deprecated warnings
Issue #1987
2017-03-24 16:20:03 +01:00
Josef Söntgen
806e0a8029 udp_client: remove os/config.h usage
Issue #2310.
2017-03-24 16:19:54 +01:00
Josef Söntgen
46463562f6 udp_echo: remove os/config.h usage
Issue #2310.
2017-03-24 16:19:54 +01:00
Josef Söntgen
fcd39f9bb2 usb_terminal: remove env deprecated warning
Issue #2310.
2017-03-24 16:19:54 +01:00
Christian Helmuth
43e7cc56a3 Rename Linux NIC driver to linux_nic_drv
Related to #2190
Issue #2278
2017-03-15 12:32:27 +01:00
Sebastian Sumpf
c707713be8 usb/rpi: fix inconsistency between C and C++
Change fiq_enable from 'int' to 'char' (is bool/_BOOL in C) so data does
not get overwritten accidentally.
2017-02-28 13:00:44 +01:00
Josef Söntgen
27cc20049e wifi: fix off-by-one in min PSK length handling
The MIN_PSK_LENGTH constant was not adjusted to accommodate for the
semcantic change when switching from using the raw char array to using
the Genode::String class. The Genode::String::length() method includes
the terminating NUL byte while strlen() does not.

Fixes #2296.
2017-02-28 13:00:44 +01:00
Norman Feske
29b8d609c9 Adjust file headers to refer to the AGPLv3 2017-02-28 12:59:29 +01:00
Martin Stein
959b80bab1 lxip/lwip tests: non-libc attributes to config tag
The 'server_ip' and 'server_port' attributes for 'lxip/udp_client' and
'lwip/http_clnt' as well as the 'port' attribute for 'lxip/udp_echo' and
'lwip/http_srv_static' are not directly libc-related so they should not
live in the libc tag but in the config tag of the component.

Ref #2193
2017-02-28 12:59:21 +01:00