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| author | Robert Morris <[email protected]> | 2019-06-04 10:43:45 -0400 |
|---|---|---|
| committer | Robert Morris <[email protected]> | 2019-06-04 10:43:45 -0400 |
| commit | 0e131b226336808c135795f5b9d7defc5a58b2ae (patch) | |
| tree | 226cf0c8f1043d99175aee8835baf570cdf662e6 /memlayout.h | |
| parent | b78894f34ebbceb23bcf36ff820fefb942b54ccf (diff) | |
| download | xv6-labs-0e131b226336808c135795f5b9d7defc5a58b2ae.tar.gz xv6-labs-0e131b226336808c135795f5b9d7defc5a58b2ae.tar.bz2 xv6-labs-0e131b226336808c135795f5b9d7defc5a58b2ae.zip | |
fix a problem with end. make uartputc() wait until h/w is ready.
Diffstat (limited to 'memlayout.h')
| -rw-r--r-- | memlayout.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/memlayout.h b/memlayout.h index 1a6b200..db233f7 100644 --- a/memlayout.h +++ b/memlayout.h @@ -2,6 +2,7 @@ // qemu -machine virt is set up like this: // 00001000 -- boot ROM, provided by qemu +// 0C000000 -- PLIC // 10000000 -- uart0 registers // 80000000 -- boot ROM jumps here in machine mode // -kernel loads the kernel here @@ -26,7 +27,7 @@ // for use by the kernel and user pages // from physical address 0x80000000 to PHYSTOP. #define KERNBASE 0x80000000L -#define PHYSTOP (KERNBASE + 64*1024*1024) +#define PHYSTOP (KERNBASE + 128*1024*1024) // map the trampoline page to the highest address, // in both user and kernel space. |