From 2b4706b6624bfd0281fce6c384804bb8458dab09 Mon Sep 17 00:00:00 2001 From: cinap_lenrek Date: Fri, 7 Feb 2014 20:04:19 +0100 Subject: pc64: dont reuse mtrr slots that are above 4GB we used to override/reuse mtrr slots over 4GB as the kernel wasnt able to use that memory. pc64 can. --- sys/src/9/pc/mtrr.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sys/src/9/pc/mtrr.c b/sys/src/9/pc/mtrr.c index b40bf0de6..77f754cb0 100644 --- a/sys/src/9/pc/mtrr.c +++ b/sys/src/9/pc/mtrr.c @@ -295,8 +295,7 @@ mtrr(uvlong base, uvlong size, char *tstr) for(i = 0; i < vcnt; i++){ mtrrget(&mtrr, i); mok = mtrrdec(&mtrr, &mp, &msize, &mtype); - /* reuse any entry for addresses above 4GB */ - if(!mok || mp == base && msize == size || mp >= (1LL<<32)){ + if(!mok || mp == base && msize == size){ slot = i; break; } -- cgit v1.2.3