mcexec/mm: user memory policy control for heap, stack, etc.

2017-02-07 04:28:31 +09:00
parent afb7cb3a1e
commit 182202523e
7 changed files with 59 additions and 7 deletions
--- a/kernel/syscall.c
+++ b/kernel/syscall.c
@ -1430,7 +1430,8 @@ do_mmap(const intptr_t addr0, const size_t len0, const int prot,
 		/* Small allocations mostly benefit from closest RAM,
 		 * otherwise follow user requested policy */
 		unsigned long ap_flag =
-			(len >= AP_USER_THRESHOLD || flags & MAP_STACK) ?
+			(!(flags & MAP_STACK) && len >= AP_USER_THRESHOLD) ||
+			((flags & MAP_STACK) && !(thread->proc->mpol_flags & MPOL_NO_STACK)) ?
 			IHK_MC_AP_USER : 0;

 		if (ap_flag) {