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xv6-cs450
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This commit is contained in:
Robert Morris 2012-08-28 14:11:23 -04:00
parent c1ee7eb4d3
commit 792d83cad1
2 changed files with 12 additions and 12 deletions
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16
README
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@ -6,7 +6,7 @@ ACKNOWLEDGMENTS
xv6 is inspired by John Lions's Commentary on UNIX 6th Edition (Peer
to Peer Communications; ISBN: 1-57398-013-7; 1st edition (June 14,
2000)). See also http://pdos.csail.mit.edu/6.828/2007/v6.html, which
2000)). See also http://pdos.csail.mit.edu/6.828/2012/v6.html, which
provides pointers to on-line resources for v6.
xv6 borrows code from the following sources:
@ -15,7 +15,7 @@ xv6 borrows code from the following sources:
FreeBSD (ioapic.c)
NetBSD (console.c)
The following people made contributions:
The following people have made contributions:
Russ Cox (context switching, locking)
Cliff Frey (MP)
Xiao Yu (MP)
@ -26,7 +26,7 @@ In addition, we are grateful for the patches contributed by Greg
Price, Yandong Mao, and Hitoshi Mitake.
The code in the files that constitute xv6 is
Copyright 2006-2011 Frans Kaashoek, Robert Morris, and Russ Cox.
Copyright 2006-2012 Frans Kaashoek, Robert Morris, and Russ Cox.
ERROR REPORTS
@ -38,13 +38,13 @@ BUILDING AND RUNNING XV6
To build xv6 on an x86 ELF machine (like Linux or FreeBSD), run "make".
On non-x86 or non-ELF machines (like OS X, even on x86), you will
need to install a cross-compiler gcc suite capable of producing x86 ELF
binaries. See http://pdos.csail.mit.edu/6.828/2011/tools.html.
binaries. See http://pdos.csail.mit.edu/6.828/2012/tools.html.
Then run "make TOOLPREFIX=i386-jos-elf-".
To run xv6, you can use Bochs or QEMU, both PC simulators.
Bochs makes debugging easier, but QEMU is much faster.
To run in Bochs, run "make bochs" and then type "c" at the bochs prompt.
To run in QEMU, run "make qemu".
To run xv6, you can use the Bochs or QEMU PC simulators. Bochs makes
debugging easier, but QEMU is much faster. To run in Bochs, run "make
bochs" and then type "c" at the bochs prompt. To run in QEMU, run
"make qemu".
To create a typeset version of the code, run "make xv6.pdf". This
requires the "mpage" utility. See http://www.mesa.nl/pub/mpage/.

8
vm.c
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@ -118,10 +118,10 @@ static struct kmap {
uint phys_end;
int perm;
} kmap[] = {
{ (void*)KERNBASE, 0, EXTMEM, PTE_W}, // I/O space
{ (void*)KERNLINK, V2P(KERNLINK), V2P(data), 0}, // kernel text+rodata
{ (void*)data, V2P(data), PHYSTOP, PTE_W}, // kernel data+memory
{ (void*)DEVSPACE, DEVSPACE, 0, PTE_W}, // more devices
{ (void*)KERNBASE, 0, EXTMEM, PTE_W}, // I/O space
{ (void*)KERNLINK, V2P(KERNLINK), V2P(data), 0}, // kern text+rodata
{ (void*)data, V2P(data), PHYSTOP, PTE_W}, // kern data+memory
{ (void*)DEVSPACE, DEVSPACE, 0, PTE_W}, // more devices
};
// Set up kernel part of a page table.