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authorMatias Zabaljauregui <zabaljauregui@gmail.com>2009-05-30 15:35:49 -0300
committerRusty Russell <rusty@rustcorp.com.au>2009-06-12 22:27:06 +0930
commited1dc77810159a733240ba6751c1b31023bf8dd7 (patch)
treed77ed52cd56e2cf3f5eac9d5db22ad1196e694d8
parent7b5c806c35f6ff76b2e36a8b5b1513c8a83fcff7 (diff)
downloadlinux-ed1dc77810159a733240ba6751c1b31023bf8dd7.tar.bz2
lguest: map switcher with executable page table entries
Map switcher with executable page table entries. (This bug didn't matter before PAE and hence NX support -- RR) Signed-off-by: Matias Zabaljauregui <zabaljauregui@gmail.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
-rw-r--r--drivers/lguest/core.c2
-rw-r--r--drivers/lguest/page_tables.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
index 03fbc88c0023..d0298dc45d97 100644
--- a/drivers/lguest/core.c
+++ b/drivers/lguest/core.c
@@ -95,7 +95,7 @@ static __init int map_switcher(void)
* array of struct pages. It increments that pointer, but we don't
* care. */
pagep = switcher_page;
- err = map_vm_area(switcher_vma, PAGE_KERNEL, &pagep);
+ err = map_vm_area(switcher_vma, PAGE_KERNEL_EXEC, &pagep);
if (err) {
printk("lguest: map_vm_area failed: %i\n", err);
goto free_vma;
diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index a059cf9980f7..496995370fbc 100644
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -714,7 +714,7 @@ void map_switcher_in_guest(struct lg_cpu *cpu, struct lguest_pages *pages)
/* Make the last PGD entry for this Guest point to the Switcher's PTE
* page for this CPU (with appropriate flags). */
- switcher_pgd = __pgd(__pa(switcher_pte_page) | __PAGE_KERNEL);
+ switcher_pgd = __pgd(__pa(switcher_pte_page) | __PAGE_KERNEL_EXEC);
cpu->lg->pgdirs[cpu->cpu_pgd].pgdir[SWITCHER_PGD_INDEX] = switcher_pgd;