spte_addrdoes not depend on any guest information, so we
wipeout the lg parameter completely.
Signed-off-by:Glauber de Oliveira Costa <gcosta@xxxxxxxxxx>
---
drivers/lguest/page_tables.c | 8 ++++----
1 files changed, 4 insertions(+), 4 deletions(-)
diff--git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
indexfb66561..c4b8eaf 100644
---a/drivers/lguest/page_tables.c
+++b/drivers/lguest/page_tables.c
@@-84,7 +84,7 @@ static pgd_t *spgd_addr(struct lguest *lg, u32 i, unsigned long vaddr)
/* This routine then takes the page directory entry returned above, which
* contains the address of the page table entry (PTE) page. It then returns a
* pointer to the PTE entry for the given address. */
-staticpte_t *spte_addr(struct lguest *lg, pgd_t spgd, unsigned long vaddr)
+staticpte_t *spte_addr(pgd_t spgd, unsigned long vaddr)
{
pte_t *page = __va(pgd_pfn(spgd) << PAGE_SHIFT);
/* You should never call this if the PGD entry wasn't valid */
@@-261,7 +261,7 @@ int demand_page(struct lg_cpu *cpu, unsigned long vaddr, int errcode)
gpte = pte_mkdirty(gpte);
/* Get the pointer to the shadow PTE entry we're going to set. */
- spte= spte_addr(lg, *spgd, vaddr);
+ spte= spte_addr(*spgd, vaddr);
/* If there was a valid shadow PTE entry here before, we release it.
* This can happen with a write to a previously read-only entry. */
release_pte(*spte);
@@-310,7 +310,7 @@ static int page_writable(struct lg_cpu *cpu, unsigned long vaddr)
/* Check the flags on the pte entry itself: it must be present and
* writable. */
- flags= pte_flags(*(spte_addr(cpu->lg, *spgd, vaddr)));
+ flags= pte_flags(*(spte_addr(*spgd, vaddr)));
return (flags & (_PAGE_PRESENT|_PAGE_RW)) == (_PAGE_PRESENT|_PAGE_RW);
}
@@-509,7 +509,7 @@ static void do_set_pte(struct lguest *lg, int idx,
/* If the top level isn't present, there's no entry to update. */
if (pgd_flags(*spgd) & _PAGE_PRESENT) {
/* Otherwise, we start by releasing the existing entry. */
- pte_t*spte = spte_addr(lg, *spgd, vaddr);
+ pte_t*spte = spte_addr(*spgd, vaddr);
release_pte(*spte);
/* If they're setting this entry as dirty or accessed, we might
--
1.5.0.6
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