diff options
| author | Frans Kaashoek <[email protected]> | 2011-08-09 21:37:35 -0400 |
|---|---|---|
| committer | Frans Kaashoek <[email protected]> | 2011-08-09 21:37:35 -0400 |
| commit | 66ba8079c7e376c189ccb3367b8d13825141b8ec (patch) | |
| tree | 93343a9d7c9ea75a02c05e4ce078ef2d4a48e2da /memlayout.h | |
| parent | 3a038106431314c85a5950c473b113a7037ac1aa (diff) | |
| download | xv6-labs-66ba8079c7e376c189ccb3367b8d13825141b8ec.tar.gz xv6-labs-66ba8079c7e376c189ccb3367b8d13825141b8ec.tar.bz2 xv6-labs-66ba8079c7e376c189ccb3367b8d13825141b8ec.zip | |
Use static page table for boot, mapping first 4Mbyte; no more segment trick
Allocate proper kernel page table immediately in main using boot allocator
Remove pginit
Simplify address space layout a tiny bit
More to come (e.g., superpages to simplify static table)
Diffstat (limited to 'memlayout.h')
| -rw-r--r-- | memlayout.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/memlayout.h b/memlayout.h index 6c44db2..1496678 100644 --- a/memlayout.h +++ b/memlayout.h @@ -5,8 +5,7 @@ #define KSTKSIZE (8*PGSIZE) // size of a kernel stack -#define IOSPACEB 0x0A0000 // begin IO space -#define IOSPACEE 0x100000 // end IO space +#define DEVSPACE 0xFE000000 // other devices are in the top of the phys address space #define PHYSTOP 0xE000000 // use phys mem up to here as free pool // Key addresses for address space layout (see kmap in vm.c for the layout) |