| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 1868 |
6497 d 14 h |
jermar |
/trunk/ |
sparc64 work.
- the syscall wrapper needs to use the "memory"
clobber specifier to prevent over-optimization.
- on sparc64, the user address space spans the whole
64-bit space and therefore the macro
USER_ADDRESS_SPACE_SIZE_ARCH, as it was defined,
overflows to 0
- stop using USER_ADDRESS_SPACE_SIZE_ARCH and define
MAX_HEAP_SIZE instead
- in our situation when kernel and user address spaces
are separate, the G (global) bit cannot be used
(there is no point in it anymore)
- add the DEBUG() macro to stdio.h; DEBUG() uses
SYS_IO and is a good debugging tool for getting
early userspace to work |
|
| 1865 |
6498 d 9 h |
jermar |
/trunk/kernel/ |
sparc64 kernel fixes |
|
| 1863 |
6501 d 8 h |
jermar |
/trunk/ |
Allow architectures to decide between inlined and not inlined version of syscall wrapper.
Implement inlined syscall wrapper for sparc64. |
|
| 1860 |
6502 d 10 h |
jermar |
/trunk/kernel/ |
A lot of untested sparc64 stuff:
- Write ASID to hardware when a thread is about to run in userspace.
- Add userspace() and switch_to_userspace() functions.
- Handle special cases when the userspace spill/fill handler causes MMU trap.
- Resolve some TODOs in the existing sparc64 code.
- sparc64 has now C99 compliant header guards.
- Formatting and indentation fixes. |
|
| 1856 |
6503 d 17 h |
jermar |
/trunk/kernel/ |
sparc64 work.
- Modify before_thread_runs_arch() to store addresses of the kernel stack and
userspace window buffer, resp., to registers %g6 and %g7, resp, in the
alternate and interrupt global sets.
- Modify after_thread_ran_arch() to sample %g7 from the alternate globals.
- Implement trap handler for spilling register windows into userspace window buffer.
- Implement assembly language functions to access %g6 and %g7 registers in the alternate sets.
- Initialize the trap table so that there are now also spill_1_normal, spill_2_normal,
spill_0_other and fill_1_normal handlers. These handlers are used in different situations
and for different purposes. |
|
| 1855 |
6504 d 13 h |
jermar |
/trunk/kernel/ |
sparc64 work.
Fix bug introduced in revision 1852. When fixing CWP,
the input registers of the current window (i.e. output
registers of the window belonging to the interrupted
context) must be preserved. Preserve those registers
in memory. Sure there exist more efficient ways how to
copy the inputs.
Simplify before_thread_runs_arch(), resp. after_thread_ran_arch(),
and make them install, resp. uninstall, DTLB locked mapping for
eventual userspace window buffer. |
|
| 1854 |
6504 d 18 h |
jermar |
/trunk/kernel/ |
Define architecture-specific thread sub-constructors and sub-destructors on all architectures.
Define the THREAD_FLAG_USPACE which means that the thread runs in user space.
The forementioned changes allow for allocating of user window buffer on sparc64
threads that execute in userspace.
A lot of formatting and indentation fixes. |
|
| 1851 |
6512 d 15 h |
jermar |
/trunk/kernel/ |
sparc64 work.
Define the istate structure.
Move the identity-mapping handler to assembly.
Make the preemptible handler more general so that TL=1 MMU exceptions can make use of it.
Little bit of formatting and indentation. |
|
| 1839 |
6528 d 13 h |
decky |
/trunk/kernel/generic/ |
finish security context isolation |
|
| 1833 |
6532 d 4 h |
decky |
/trunk/kernel/ |
more sophisticated initial stack handling |
|
| 1820 |
6536 d 5 h |
decky |
/trunk/kernel/generic/ |
initial security context support |
|
| 1819 |
6536 d 6 h |
decky |
/trunk/kernel/generic/include/ |
formatting changes |
|
| 1812 |
6540 d 14 h |
decky |
/trunk/kernel/ |
move macro and cleanup |
|
| 1787 |
6553 d 10 h |
decky |
/ |
move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot |
|
| 1780 |
6560 d 11 h |
jermar |
/kernel/trunk/ |
Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.). |
|
| 1767 |
6568 d 18 h |
palkovsky |
/kernel/trunk/ |
Remove unneeded FRAME_PANIC.
Fix some things broken by last commit. |
|
| 1766 |
6568 d 19 h |
palkovsky |
/kernel/trunk/ |
Changed frame_alloc call, cleaned a lot of stuff, fixed some not-perfectly-correct error handling. |
|
| 1760 |
6571 d 13 h |
palkovsky |
/kernel/trunk/ |
Changed interface of frame_alloc/free to use address of frame instead of the pfn.
This makes it impossible to use >4GB of memory on 32-bit machines, but who cares... |
|
| 1757 |
6574 d 16 h |
jermar |
/kernel/trunk/ |
Cleanup of comments. |
|
| 1735 |
6576 d 18 h |
decky |
/kernel/trunk/ |
make kernel prints case consistent |
|