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lguest: map switcher with executable page table entries

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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>
This commit is contained in:
Matias Zabaljauregui
2009-05-30 15:35:49 -03:00
committed by Rusty Russell
parent 7b5c806c35
commit ed1dc77810
2 changed files with 2 additions and 2 deletions
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drivers/lguest/page_tables.c
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@@ -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;