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Code Issues Activity
24,430 Commits 53 Branches 377 Tags
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Commit Graph
378 Commits
Author SHA1 Message Date
Keir Fraser dfba81d2fc minios: fix case when _text is not 0 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-22 11:35:26 +00:00
Keir Fraser c6c6a0890d minios: Fix x86_32 compilation 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-22 11:19:40 +00:00
Keir Fraser 2a18de7599 minios: add blkfront testing 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-22 09:46:33 +00:00
Keir Fraser e5445ffa54 minios, blkfront: set default block path. 
remove unnecessary path head stripping.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-22 09:46:15 +00:00
Keir Fraser d6398adb03 minios: Add align support to _xmalloc(). 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-22 09:45:54 +00:00
Keir Fraser 0464a12749 minios: add lwIP 1.3.0 support 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-21 11:20:52 +00:00
Keir Fraser afb13d4890 minios: make time interface POSIX 
timespec uses tv_sec and tv_nsec too. gettimeofday takes a tz
argument.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-21 11:20:27 +00:00
Keir Fraser 2039d19398 minios: do not exit if FS backend not found. 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-18 16:20:47 +00:00
Keir Fraser 04383f9c0f minios: support COW for a zero page 
Permits to support sparse data.
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-18 16:20:13 +00:00
Keir Fraser 4eb8e8dc04 minios: extend map_frames into being able to map a series of 
contiguous frames, or the same frame several times, aligned, from
another domain, with specific protection, and with potential
failures.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-18 15:22:42 +00:00
Keir Fraser c1ea56152a minios: set text and rodata read-only, free unused pages 0 and 1 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-18 15:22:17 +00:00
Keir Fraser be33e2333a Add FS backend/frontend drivers (frontend in minios only). 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Signed-off-by: Grzegorz Milos <gm281@cam.ac.uk>
 2008-01-18 13:33:37 +00:00
Keir Fraser 9d220744e6 minios: add blkfront 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-17 16:41:46 +00:00
Keir Fraser bdd22133fc minios: support several netfronts 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-17 15:50:48 +00:00
Keir Fraser 08d9a2612a minios: add xenbus token support and separate watch event queues 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-17 15:20:02 +00:00
Keir Fraser f3b3ce4ae7 minios: add realloc 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Signed-off-by: Tim Deegan <tim.deegan@eu.citrix.com>
 2008-01-17 15:06:30 +00:00
Keir Fraser 22e39d084e minios: make stack size configurable 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Signed-off-by: Grzegorz Milos <gm281@cam.ac.uk>
 2008-01-17 14:41:44 +00:00
Keir Fraser e2edfe6c73 minios: add wait_event_deadline 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
Signed-off-by: Tim Deegan <tim.deegan@eu.citrix.com>
 2008-01-17 14:41:12 +00:00
Keir Fraser 69ca1c28b4 minios: add trydown 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-17 14:40:55 +00:00
Keir Fraser d962772049 minios: use ASSERT for BUG_ON 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-17 14:40:23 +00:00
Keir Fraser 41888d5a7e minios: Add exit_thread prototype. Make sure exit_thread doesn't 
return by accident.

Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-17 14:40:06 +00:00
Keir Fraser cb4baf13a2 minios: Add noreturn attribute to do_exit 
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
 2008-01-17 14:39:45 +00:00
Keir Fraser c56fe82b7d minios: Optimize IA64's get_current() 
Let gcc access r13 itself, leading to better code

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2008-01-17 14:39:21 +00:00
Keir Fraser 8f8a3b5659 In C99 (7.19.6.2.10), the behavior of scanf("stuff... %n", ..., &n) is 
said to be undefined if the value to be put is n can't fit.  I guess
we can safely consider that the same applies to printf.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-12-28 15:23:28 +00:00
Keir Fraser 85b3f5270f mini-os: No -fpic when building for x86. 
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-12-04 10:11:54 +00:00
Keir Fraser 040d9d2287 [Mini-OS] Catch NULL dereferences 
Unmap page 0 (only used early at boot) so as to catch NULL dereferences.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-28 12:42:17 +00:00
Keir Fraser c0a00d42f4 [Mini-OS] Fix strrchr() when string doesn't contain the character. 
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-28 12:41:41 +00:00
Keir Fraser 1c0c172695 [Mini-OS] Make gnttab allocation/free safe 
Add a semaphore to protect gnttab_list from exhaustion, and disable
callbacks during allocation/free.  Fix the network frontend accordingly.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-28 12:40:57 +00:00
Keir Fraser 70db19da26 minios: Revert 16206:7b5b65fbaf61 (xenbus wait fixup) 
Already fixed by 14432:f40079acf646.
 2007-11-27 12:49:16 +00:00
Keir Fraser 32946b60f1 [Mini-OS] Fix domain blocking race 
A callback which wakes a thread may happen between the moment
schedule() gives hand to the idle thread and the latter blocks the
domain.  Idle hence needs to atomically check that no thread is
running and block, else awoken threads may have to wait up to 10
seconds.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-24 13:31:39 +00:00
Keir Fraser 153bf11814 [Mini-OS] Permit x86_64 trap handlers to return 
Trap handlers sometimes fix the problem, so they need to be able to
return.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-24 13:31:01 +00:00
Keir Fraser 26aa688655 [Mini-OS] Make sure schedule() is called safely 
If a thread tries to sleep from a callback or with callbacks disabled,
Mini-OS will completely lock, so make sure this never happens.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-24 13:29:20 +00:00
Keir Fraser cf64298141 [Mini-OS] Fix netfront xmit overflow 
Fix xmit overflow by making netfront_xmit sleep until
network_tx_buf_gc() frees an xmit request.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-24 13:28:54 +00:00
Keir Fraser 051f29b827 [Mini-OS] Fix net backend path leak 
Free backend path after use.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-24 13:28:27 +00:00
Keir Fraser 984c5a39ec [Mini-OS] Make wake_up callback-safe 
As it may compete with event handlers waking wait queues, wake_up
needs to be callback-safe.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-24 13:27:59 +00:00
Keir Fraser 00e209e059 [Mini-OS] Fix init_waitqueue_entry 
Fix initialization of thread_list in init_waitqueue_entry().

Signed-off-by: Samuel Thibault <samuel.thibault@xensource.com>
 2007-11-24 13:27:32 +00:00
Keir Fraser e8c2d5c38a [Mini-OS] Add init_SEMAPHORE 
Add init_SEMAPHORE() to dynamically initialize semaphores.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-24 13:27:08 +00:00
Keir Fraser 59091f2d52 [Mini-OS] Make semaphores callback-safe 
One may want to use semaphores in event handlers to wake threads
waiting for a resource, so semaphores then need to be callback-safe.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-24 13:26:39 +00:00
Keir Fraser 36cb94956a [Mini-OS] Add strrchr() 
Add strrchr(), useful e.g. for grabbing the last part of a xenbus
path.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-23 16:42:44 +00:00
Keir Fraser 604132c3d5 [Mini-OS] Add ENOTSUP 
Add missing ENOTSUP by defining it to EOPNOTSUPP like in Linux.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-23 16:42:23 +00:00
Keir Fraser 63c4c4eabe [Mini-OS] Move _ctype into a module 
Move the _ctype array into its own module, instead of having it
defined in a header.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-23 16:41:54 +00:00
Keir Fraser 9ebc5c7ea6 [Mini-OS] Make bind_virq return the port 
Make bind_virq() return the port bound to the irq, which is useful
e.g. for masking/unmasking it.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-23 16:25:59 +00:00
Keir Fraser fd2f80c255 [Mini-OS] Fix x86 arch_switch_thread 
Fix x86 arch_switch_thread by making it pure assembly.
There were missing general register clobbers for x86_64, and BP should
theorically be clobbered too, but gcc does not believe that, so the
only simple safe solution is to use pure assembly.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-23 16:23:28 +00:00
Keir Fraser a222af2ef1 [Mini-OS] Optimize get_current() 
Let gcc perform the computation with SP itself, leading to yet better
code.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-23 16:23:03 +00:00
Keir Fraser bb44bead10 [Mini-OS] Fix stack closures 
So as to make backtracing tools happy, correctly close x86 stacks for
new threads as well as on callback in the x86_32 case since there is
no unwind marker.

Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-23 16:22:36 +00:00
Keir Fraser 8d71c3dfb8 [Mini-OS] Fix x86 initial stack alignment 
This fixes the initial stack alignment for x86, which is required for
current to return a fine NULL instead of a random value or possibly
crash during initialization.

Signed-off-by: Grzegorz Milos <gm281@cam.ac.uk>
Signed-off-by: Samuel Thibault <samuel.thibault@citrix.com>
 2007-11-23 16:22:13 +00:00
Keir Fraser abbd33090a minios: xenbus wait fixup 
From: Samuel Thibault <samuel.thibault@xensource.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
 2007-10-24 14:36:18 +01:00
Keir Fraser d06d3cfb8d minios: Make NSEC_TO_USEC/NSEC_TO_SEC macros expression safe. 
From: Samuel Thibault <samuel.thibault@xensource.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
 2007-10-24 14:35:19 +01:00
Keir Fraser c6553c4cde minios: Fix get_current() inline asm. 
From: Samuel Thibault <samuel.thibault@xensource.com>
Signed-off-by: Keir Fraser <keir@xensource.com>
 2007-10-16 09:30:20 +01:00
Keir Fraser 85cb55a886 MiniOS: no-stack-protector added to the cflags if needed, 
and the default domain config file fixed.

From: Grzegorz Milos <gm281@cam.ac.uk>
Signed-off-by: Keir Fraser <keir@xensource.com>
 2007-10-09 16:06:50 +01:00