From 31f4b46ec6f889533c06537dea96bb0d20fa625b Mon Sep 17 00:00:00 2001 From: "Ahmed S. Darwish" Date: Sat, 9 Feb 2008 23:24:09 +0100 Subject: lguest: accept guest _PAGE_PWT page table entries Beginning from commit 4138cc3418f5, ioremap_nocache() sets the _PAGE_PWT flag. Lguest doesn't accept a guest pte with a _PWT flag and reports a "bad page table entry" in that case. Accept guest _PAGE_PWT page table entries. Signed-off-by: Ahmed S. Darwish Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- drivers/lguest/page_tables.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c index 74b4cf2..275f23c 100644 --- a/drivers/lguest/page_tables.c +++ b/drivers/lguest/page_tables.c @@ -178,8 +178,8 @@ static void release_pte(pte_t pte) static void check_gpte(struct lg_cpu *cpu, pte_t gpte) { - if ((pte_flags(gpte) & (_PAGE_PWT|_PAGE_PSE)) - || pte_pfn(gpte) >= cpu->lg->pfn_limit) + if ((pte_flags(gpte) & _PAGE_PSE) || + pte_pfn(gpte) >= cpu->lg->pfn_limit) kill_guest(cpu, "bad page table entry"); } -- cgit v1.1