Stephen Tu
ff2783442e
Correct a security bug in copyuvm()
...
copyuvm() should not allow new copied pages to inherit more
permissions than the original pages.
2013-03-04 16:16:54 -05:00
Frans Kaashoek
e25b74ca80
Fix layout issues for printed version
2011-09-01 10:25:20 -04:00
Austin Clements
a7061b4f97
Style nits; indentation and tabs
2011-08-29 16:12:01 -04:00
Frans Kaashoek
c3dcf47966
Clean up memlayout.h
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Get rid of last instances of linear address and "la"
Get ready for detecting physical memory dynamically
2011-08-16 15:47:22 -04:00
Frans Kaashoek
9449646853
Use 4Mbyte pages during boot
2011-08-15 17:41:58 -04:00
Frans Kaashoek
a56c8d609b
One definition of several macros and constants
2011-08-08 13:30:08 -04:00
Frans Kaashoek
9aa0337dc1
Map kernel high
...
Very important to give qemu memory through PHYSTOP :(
2011-07-29 07:31:27 -04:00
Russ Cox
1a81e38b17
make new code like old code
...
Variable declarations at top of function,
separate from initialization.
Use == 0 instead of ! for checking pointers.
Consistent spacing around {, *, casts.
Declare 0-parameter functions as (void) not ().
Integer valued functions return -1 on failure, 0 on success.
2011-01-11 13:01:13 -05:00
Austin Clements
7914ab7214
Page breaking of mmu.h
2010-08-31 16:54:50 -04:00
Austin Clements
b5592b4d2f
Start PDE defs on new page
2010-08-31 16:47:50 -04:00
Robert Morris
7d7dc9331b
kalloc/kfree now only a page at a time
...
do not keep sorted contiguous free list
2010-08-31 12:54:47 -04:00
Robert Morris
c4cc10da7e
fix corner cases in exec of ELF
...
put an invalid page below the stack
have fork() handle invalid pages
2010-08-06 11:12:18 -04:00
Robert Morris
c99599784e
remove some unused vm #defines
...
fix corner cases with alignment when mapping kernel ELF file
2010-08-05 16:00:59 -04:00
Robert Morris
eb18645f17
fix allocuvm() to handle sbrk() with non-page-granularity argument
...
(maybe this never worked, but it works now)
2010-08-05 12:10:54 -04:00
Frans Kaashoek
30f5bf0548
some cleanup
2010-07-25 20:30:21 -04:00
Frans Kaashoek
40889627ba
Initial version of single-cpu xv6 with page tables
2010-07-02 14:51:53 -04:00
Russ Cox
48755214c9
assorted fixes:
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* rename c/cp to cpu/proc
* rename cpu.context to cpu.scheduler
* fix some comments
* formatting for printout
2009-08-30 23:02:08 -07:00
Russ Cox
b8912d999f
mmu.h: unused SEG_NULL
2009-07-11 19:26:29 -07:00
rsc
0fe118f3f6
don't call it ss - that's the stack segment
2007-09-27 16:47:50 +00:00
rsc
cce27ba9fb
formatting
2007-08-14 19:41:38 +00:00
rsc
3fd50978a8
spacing
2007-08-08 09:12:53 +00:00
rsc
b6dc6187f7
add DPL_USER constant
2007-08-08 09:02:42 +00:00
rsc
3c821bf9ae
better comment
2006-09-07 16:54:15 +00:00
rsc
0cfc7290e8
wrap long lines
2006-09-06 19:08:14 +00:00
rsc
f552738889
no /* */ comments
2006-09-06 17:50:20 +00:00
rsc
9e9bcaf143
standardize various * conventions
2006-09-06 17:27:19 +00:00
rsc
a650c606fe
spacing fixes: no tabs, 2-space indents (for rtm)
2006-09-06 17:04:06 +00:00
kaashoek
801affcd14
centralize credits
2006-09-03 15:10:33 +00:00
rtm
dfcc5b997c
prune unneeded panics and debug output
2006-08-29 19:06:37 +00:00
rtm
5be0039ce9
interrupts could be recursive since lapic_eoi() called before rti
...
so fast interrupts overflow the kernel stack
fix: cli() before lapic_eoi()
2006-08-10 22:08:14 +00:00
rtm
11a9947f1a
bread
...
iget
mkfs makes a file system image
put this in your .bochsrc:
ata0-slave: type=disk, mode=flat, path="fs.img", cylinders=1024, heads=1, spt=1
2006-07-21 13:18:04 +00:00
rtm
2927081628
uint32_t -> uint &c
2006-07-20 09:07:53 +00:00
rsc
b5f17007f4
standarize on unix-like lowercase struct names
2006-07-17 01:58:13 +00:00
rsc
b5ee516575
add uint and standardize on typedefs instead of unsigned
2006-07-17 01:52:13 +00:00
rsc
564f787e91
Eliminate annoying Pseudodesc structure.
...
Eliminate unnecessary parts of mmu.h.
2006-07-16 16:55:52 +00:00
rsc
ef2bd07ae4
standardize on not using foo_ prefix in struct foo
2006-07-16 15:41:47 +00:00
rtm
55e95b16db
import
2006-06-12 15:22:12 +00:00
