diff options
| -rw-r--r-- | sys/i386/i386/locore.s | 5 | ||||
| -rw-r--r-- | sys/i386/i386/machdep.c | 6 |
2 files changed, 6 insertions, 5 deletions
diff --git a/sys/i386/i386/locore.s b/sys/i386/i386/locore.s index bd25fe8..2579ba7 100644 --- a/sys/i386/i386/locore.s +++ b/sys/i386/i386/locore.s @@ -788,12 +788,7 @@ no_kernend: /* Map read-only from zero to the beginning of the kernel text section */ xorl %eax, %eax -#ifdef BURN_BRIDGES xorl %edx,%edx -#else -/* XXX emulate bugs in the old PSE code so that apm works */ - movl $PG_RW,%edx -#endif movl $R(btext),%ecx addl $PAGE_MASK,%ecx shrl $PAGE_SHIFT,%ecx diff --git a/sys/i386/i386/machdep.c b/sys/i386/i386/machdep.c index 01149ba..ae38722 100644 --- a/sys/i386/i386/machdep.c +++ b/sys/i386/i386/machdep.c @@ -1555,6 +1555,12 @@ getmemsize(int first) pmap_kenter(KERNBASE + pa, pa); /* + * Map the page at address zero for the bios code to use. + * Note that page zero is not in the general page pool. + */ + pmap_kenter(KERNBASE, 0); + + /* * if basemem != 640, map pages r/w into vm86 page table so * that the bios can scribble on it. */ |
