changeset b69cc0fd934d in /z/repo/m5 details: http://repo.m5sim.org/m5?cmd=changeset;node=b69cc0fd934d description: util/m5/m5.c: ensure readfile() buffer pages are in page table (and marked dirty, in case that matters) by touching them beforehand
diffstat: util/m5/m5.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-) diffs (15 lines): diff -r cfbbc9178e7a -r b69cc0fd934d util/m5/m5.c --- a/util/m5/m5.c Thu Aug 12 17:16:02 2010 -0700 +++ b/util/m5/m5.c Thu Aug 12 17:16:04 2010 -0700 @@ -65,6 +65,11 @@ int offset = 0; int len; + // Touch all buffer pages to ensure they are mapped in the + // page table. This is required in the case of X86_FS, where + // Linux does demand paging. + memset(buf, 0, sizeof(buf)); + while ((len = m5_readfile(buf, sizeof(buf), offset)) > 0) { write(dest_fid, buf, len); offset += len; _______________________________________________ m5-dev mailing list m5-dev@m5sim.org http://m5sim.org/mailman/listinfo/m5-dev