Philipp Oppermann
495bee0480
Use standard “content” directory
2017-03-11 12:51:40 +01:00
Philipp Oppermann
7dbc7dc885
Merge branch 'hugo'
2017-03-11 12:45:27 +01:00
Philipp Oppermann
ce36e25da9
Move everything into a “blog” directory
2017-03-11 12:41:53 +01:00
Philipp Oppermann
68dc7447f4
Run rustfmt
2017-03-09 17:50:44 +01:00
Ahmed Charles
844d739379
Fix typo in “Returning from Exceptions” ( #285 )
2017-02-13 14:24:59 +01:00
Ahmed Charles
cb98f1a4de
Remove unneeded read/write flag in post ( #282 )
2017-01-30 14:21:53 +01:00
Philipp Oppermann
419d000897
Merge pull request #281 from phil-opp/update-bit_field
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Update to latest bit_field version
2017-01-25 13:49:49 +01:00
Philipp Oppermann
8b807a7d25
Update posts to latest bit_field version
2017-01-25 13:46:21 +01:00
Philipp Oppermann
46100ba24b
Update to latest bit_field version
2017-01-25 13:45:57 +01:00
Philipp Oppermann
fce85e68ee
The ReadWrite flag isn't needed for code segments ( #279 )
2017-01-18 13:12:28 +01:00
Philipp Oppermann
0ec93fc6fe
Merge pull request #278 from phil-opp/gdt-without-data-segment
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Remove the data segment from assembly 64-bit GDT
2017-01-14 16:56:14 +01:00
Philipp Oppermann
ebb3e413dd
Update GDT code in post (no data segments anymore)
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We also load 0 into all data segment registers to avoid future problems with iretq. Also: minor wording improvements.
2017-01-14 16:42:18 +01:00
Philipp Oppermann
8f8b46a9b6
Load null selectors to all data registers
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This is required for some instructions such as iretq (ss must be valid or 0).
2017-01-14 16:38:33 +01:00
Philipp Oppermann
e179dadf70
Data segments aren't needed for 64-bit mode
2017-01-12 17:23:50 +01:00
Philipp Oppermann
a8847c22ef
Fix broken links
2017-01-04 16:36:25 +01:00
Philipp Oppermann
ae1c9b3739
Merge pull request #276 from phil-opp/p
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Make panic_fmt public to fix private_no_mangle_fns warning
2017-01-04 16:21:19 +01:00
Philipp Oppermann
64cbabd1c2
make panic_fmt public in posts
2017-01-04 16:15:59 +01:00
Philipp Oppermann
1be2f42791
Make panic_fmt public to fix private_no_mangle_fns warning
2017-01-04 16:13:27 +01:00
Philipp Oppermann
f6a1faab96
Fix broken links in “Double Faults” ( #275 )
2017-01-02 19:39:19 +01:00
Philipp Oppermann
1549e318a5
Merge pull request #270 from phil-opp/new-post
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New post about double faults
2017-01-02 19:19:29 +01:00
Philipp Oppermann
c39070da4a
“Double Faults” is the 12th post
2017-01-02 19:15:50 +01:00
Philipp Oppermann
a43b23b619
Catch double faults on a separate stack
2017-01-02 19:11:56 +01:00
Philipp Oppermann
006619920e
Reload code segment register and load TSS
2017-01-02 19:11:56 +01:00
Philipp Oppermann
c0d7206249
Make TSS and GDT statics by using spin::Once
2017-01-02 19:11:56 +01:00
Philipp Oppermann
31ffe60052
Add a new GDT module
2017-01-02 19:11:56 +01:00
Philipp Oppermann
d330a67659
Create a new TaskStateSegment
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(that contains the double fault stack in its IST)
2017-01-02 19:11:56 +01:00
Philipp Oppermann
e08bd375ae
Allocate a new double fault stack in interrupts::init
2017-01-02 19:11:56 +01:00
Philipp Oppermann
8ad76ba496
Create a new MemoryAllocator (and initialize it)
2017-01-02 19:11:56 +01:00
Philipp Oppermann
4347ff235f
Add a new stack_allocator module
2017-01-02 19:11:56 +01:00
Philipp Oppermann
47755d541d
Trigger a stack overflow (still causes a triple fault)
2017-01-02 19:11:56 +01:00
Philipp Oppermann
dfa1cc48c9
Add a double fault handler (and trigger it)
2017-01-02 19:11:56 +01:00
Philipp Oppermann
9090bf0c06
Set correct release date
2017-01-02 19:11:56 +01:00
Philipp Oppermann
7db15cf892
Reset source code to master again
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(in order to follow the post and test the exact code from it)
2017-01-02 19:11:56 +01:00
Philipp Oppermann
055c534b4e
Add a section about possible safety problems
2017-01-02 19:11:56 +01:00
Philipp Oppermann
80354c8a72
Multiple code corrections in post
2017-01-02 19:11:56 +01:00
Philipp Oppermann
02b3ebcd27
Add another image for double fault post
2017-01-02 19:10:58 +01:00
Philipp Oppermann
cce40a1d67
Many small improvements
2016-12-30 14:54:46 +01:00
Philipp Oppermann
e121edced2
Change the GDT push logic
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Instead of looking for a zero field, we now keep track of the next free index in a separate field. This avoids the bug that the high u64 of a pushed TSS descriptor is treated as empty.
2016-12-30 14:54:46 +01:00
Philipp Oppermann
1e45ddd79c
Link double fault post and source in Readme
2016-12-30 14:52:04 +01:00
Philipp Oppermann
ec358321da
Finish first draft of double faults post
2016-12-30 14:52:04 +01:00
Philipp Oppermann
c3bfcbcd8d
Silence dead code warning
2016-12-30 14:52:04 +01:00
Philipp Oppermann
58e7cc77d0
Data segment descriptors are not needed in 64-bit mode
2016-12-30 14:52:04 +01:00
Philipp Oppermann
0b03c18b06
Rewrite interrupts::init using a lazy_static IDT again
2016-12-30 14:52:04 +01:00
Philipp Oppermann
3e6b1a8a35
Rewrite gdt module using an array instead of Vec
2016-12-30 14:52:04 +01:00
Philipp Oppermann
ceb44d9c2e
Use x86's TaskStateSegment and use usize for stack pointers
2016-12-30 14:52:04 +01:00
Philipp Oppermann
d1fb1516fa
Minor improvements to post
2016-12-30 14:52:04 +01:00
Philipp Oppermann
ef786e1fe8
Update post and code
2016-12-30 14:52:04 +01:00
Philipp Oppermann
038fd097b6
Update post
2016-12-30 14:52:04 +01:00
Philipp Oppermann
5f8de6e871
Create TSS and GDT modules and use a double fault stack
2016-12-30 14:52:04 +01:00
Philipp Oppermann
b4bc47d5d9
Add a new section about the causes of double faults
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(+ many other improvements)
2016-12-30 14:51:47 +01:00
