From 792d83cad186c175d4dd5612b12a9db3d4258389 Mon Sep 17 00:00:00 2001 From: Robert Morris Date: Tue, 28 Aug 2012 14:11:23 -0400 Subject: [PATCH] nits --- README | 16 ++++++++-------- vm.c | 8 ++++---- 2 files changed, 12 insertions(+), 12 deletions(-) diff --git a/README b/README index 41d28ec..3ae908d 100644 --- a/README +++ b/README @@ -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/. diff --git a/vm.c b/vm.c index 7cfdc4e..dde56b7 100644 --- a/vm.c +++ b/vm.c @@ -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.