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

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This commit is contained in:
Balazs Gerofi
2017-02-07 04:28:31 +09:00
parent afb7cb3a1e
commit 182202523e
7 changed files with 59 additions and 7 deletions
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7
kernel/host.c
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@@ -127,8 +127,10 @@ int prepare_process_ranges_args_envs(struct thread *thread,
flags |= VRFLAG_PROT_TO_MAXPROT(flags);
flags |= VR_DEMAND_PAGING;
/* Non-TEXT sections that are large respect user allocation policy */
if (i >= 1 && pn->sections[i].len >= AP_USER_THRESHOLD) {
/* Non-TEXT sections that are large respect user allocation policy
* unless user explicitly requests otherwise */
if (i >= 1 && pn->sections[i].len >= AP_USER_THRESHOLD &&
!(pn->mpol_flags & MPOL_NO_BSS)) {
dkprintf("%s: section: %d size: %d pages -> IHK_MC_AP_USER\n",
__FUNCTION__, i, range_npages);
ap_flags = IHK_MC_AP_USER;
@@ -426,6 +428,7 @@ static int process_msg_prepare_process(unsigned long rphys)
proc->sgid = pn->cred[6];
proc->fsgid = pn->cred[7];
proc->termsig = SIGCHLD;
proc->mpol_flags = pn->mpol_flags;
vm->region.user_start = pn->user_start;
vm->region.user_end = pn->user_end;