Author: skra
Date: Tue Feb 2 10:17:51 2016
New Revision: 295141
URL: https://svnweb.freebsd.org/changeset/base/295141
Log:
Fix setting of protection bits for page table entries in pmap_map(). This
function is only called from vm_page_startup() and vm_reserv_startup().
I.e. during vm subsystem initialization. As VM_PROT_WRITE is always
used in these calls, the typo did not have any effect. Likely, it's
the reason why it wasn't discovered so long.
Modified:
head/sys/arm/arm/pmap-v6.c
Modified: head/sys/arm/arm/pmap-v6.c
==============================================================================
--- head/sys/arm/arm/pmap-v6.c Tue Feb 2 10:11:56 2016 (r295140)
+++ head/sys/arm/arm/pmap-v6.c Tue Feb 2 10:17:51 2016 (r295141)
@@ -1325,7 +1325,7 @@ pmap_map(vm_offset_t *virt, vm_paddr_t s
PDEBUG(1, printf("%s: virt = %#x, start = %#x, end = %#x (size = %#x),"
" prot = %d\n", __func__, *virt, start, end, end - start, prot));
- l2prot = (prot & VM_PROT_WRITE) ? PTE2_AP_KRW : PTE1_AP_KR;
+ l2prot = (prot & VM_PROT_WRITE) ? PTE2_AP_KRW : PTE2_AP_KR;
l2prot |= (prot & VM_PROT_EXECUTE) ? PTE2_X : PTE2_NX;
l1prot = ATTR_TO_L1(l2prot);
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