From ed1dc77810159a733240ba6751c1b31023bf8dd7 Mon Sep 17 00:00:00 2001 From: Matias Zabaljauregui Date: Sat, 30 May 2009 15:35:49 -0300 Subject: [PATCH] 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 Signed-off-by: Rusty Russell --- drivers/lguest/core.c | 2 +- drivers/lguest/page_tables.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c index 03fbc88c002..d0298dc45d9 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 a059cf9980f..496995370fb 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;