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30 commits

Author SHA1 Message Date
Jonas 'Sortie' Termansen
fe067c5150 Refactor boot page availability testing. 2016-01-26 17:51:25 +01:00
Jonas 'Sortie' Termansen
2e3d7c45af Add paging no-execute and write protection support.
Enable the NX bit on x86_64 and set if not PROT_EXEC and enable the write
protection mode (CR0.WP) that disables the default behavior where the kernel
is able to write to read-only memory. Fix kernel broken assumptions it can
access read-only memory and take care to never set PROT_KWRITE on user-space
pages unless PROT_WRITE is also set, otherwise user-space will be able to
write to read-only memory.

This achieves X^W in the whole system except for the core kernel itself as
it is currently don't know the purpose of pages when identity mapping the
first 4 MiB.
2016-01-25 17:39:57 +01:00
Jonas 'Sortie' Termansen
306709fc4a Add PS/2 controller driver. 2016-01-23 00:50:53 +01:00
Jonas 'Sortie' Termansen
ff8b2be515 Implement CLOCK_THREAD_CPUTIME_ID and CLOCK_THREAD_SYSTIME_ID. 2016-01-09 02:28:44 +01:00
Jonas 'Sortie' Termansen
73a182f80c Add interface to get 32-bit pages. 2015-08-28 15:24:54 +02:00
Jonas 'Sortie' Termansen
a79aeed0c1 Remove __BEGIN_DECLS and __END_DECLS. 2015-08-26 14:52:44 +02:00
Jonas 'Sortie' Termansen
77467b7768 Detect physical memory before initializing the kernel log. 2015-08-21 21:25:00 +02:00
Jonas 'Sortie' Termansen
218875eb79 Initialize paging before KernelInit. 2015-08-21 21:25:00 +02:00
Jonas 'Sortie' Termansen
a422c394b8 Initialize the GDT in the bootstrap assembly. 2015-08-21 21:25:00 +02:00
Jonas 'Sortie' Termansen
4f7c5ebdd3 Fix PCI code. 2015-02-08 22:58:32 +01:00
Jonas 'Sortie' Termansen
ba1e0882ec Initialize system call table at compile time. 2014-12-03 14:19:49 +01:00
Jonas 'Sortie' Termansen
59262f6bf2 Refactor interrupt handler registration. 2014-12-02 21:30:39 +01:00
Jonas 'Sortie' Termansen
78d9620b0f Clean up kernel attribute packed use. 2014-12-02 19:36:20 +01:00
Jonas 'Sortie' Termansen
35708fa900 Retire calltrace support in favor of the kernel debugger. 2014-12-01 21:38:06 +01:00
Jonas 'Sortie' Termansen
749d123331 Maintain counts of physical frames used for particular purposes. 2014-11-26 22:27:04 +01:00
Jonas 'Sortie' Termansen
c1af231897 Optimize reading the CMOS real time clock. 2014-11-25 19:42:28 +01:00
Jonas 'Sortie' Termansen
12eaf46873 Let kernel debugger know how it was invoked. 2014-11-21 00:12:46 +01:00
Jonas 'Sortie' Termansen
25e07a9083 Refactor kernel interrupt and thread register support. 2014-11-18 20:33:21 +01:00
Jonas 'Sortie' Termansen
25b4125840 Relocate kernel IO port functions to <sortix/kernel/ioport.h>. 2014-11-18 18:10:22 +01:00
Jonas 'Sortie' Termansen
79f7312a49 Fix page protection bugs. 2014-11-06 00:09:55 +01:00
Jonas 'Sortie' Termansen
30cd318c17 Implement signals.
Note: This is an incompatible ABI change.
2014-07-22 13:25:39 +02:00
Jonas 'Sortie' Termansen
af23f7ad5e Add rdmsr(2) and wrmsr(2). 2014-05-29 17:14:30 +02:00
Jonas 'Sortie' Termansen
1f72c1637c Maintain fsbase and gsbase as per-thread registers.
Note: This is an incompatible ABI change.
2014-05-29 17:07:42 +02:00
Jonas 'Sortie' Termansen
24321b0f96 Fix wrong TSS limit. 2014-04-22 18:06:00 +02:00
Jonas 'Sortie' Termansen
8c00a4145c Refactor kernel PAT, MTRR, and MSR usage. 2014-03-17 19:22:13 +01:00
Jonas 'Sortie' Termansen
a133a7717e Refactor i386 and x86_64 interrupt support. 2014-03-17 19:22:13 +01:00
Jonas 'Sortie' Termansen
093d583dea Fix print format warnings in kernel/x86-family/memorymanagement.cpp. 2014-03-01 14:37:42 +01:00
Jonas 'Sortie' Termansen
6d79781497 Update kernel/x86-family/x86-family.{cpp,h} to current coding conventions. 2014-03-01 14:37:41 +01:00
Jonas 'Sortie' Termansen
a099f82890 Update kernel memory management to current coding conventions. 2014-03-01 14:37:40 +01:00
Jonas 'Sortie' Termansen
98a87fa1e5 Rename Sortix kernel directory to kernel. 2014-03-01 14:37:39 +01:00