paravirt: add an "mm" argument to alloc_pt
It's useful to know which mm is allocating a pagetable. Xen uses this
to determine whether the pagetable being added to is pinned or not.
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
diff --git a/arch/i386/kernel/vmi.c b/arch/i386/kernel/vmi.c
index c12720d..234bd6f 100644
--- a/arch/i386/kernel/vmi.c
+++ b/arch/i386/kernel/vmi.c
@@ -362,7 +362,7 @@
}
#endif
-static void vmi_allocate_pt(u32 pfn)
+static void vmi_allocate_pt(struct mm_struct *mm, u32 pfn)
{
vmi_set_page_type(pfn, VMI_PAGE_L1);
vmi_ops.allocate_page(pfn, VMI_PAGE_L1, 0, 0, 0);
diff --git a/arch/i386/mm/init.c b/arch/i386/mm/init.c
index 7135946..f9b6a88 100644
--- a/arch/i386/mm/init.c
+++ b/arch/i386/mm/init.c
@@ -87,7 +87,7 @@
if (!(pmd_val(*pmd) & _PAGE_PRESENT)) {
pte_t *page_table = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
- paravirt_alloc_pt(__pa(page_table) >> PAGE_SHIFT);
+ paravirt_alloc_pt(&init_mm, __pa(page_table) >> PAGE_SHIFT);
set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE));
BUG_ON(page_table != pte_offset_kernel(pmd, 0));
}
diff --git a/arch/i386/mm/pageattr.c b/arch/i386/mm/pageattr.c
index 2eb14a7..37992ff 100644
--- a/arch/i386/mm/pageattr.c
+++ b/arch/i386/mm/pageattr.c
@@ -60,7 +60,7 @@
address = __pa(address);
addr = address & LARGE_PAGE_MASK;
pbase = (pte_t *)page_address(base);
- paravirt_alloc_pt(page_to_pfn(base));
+ paravirt_alloc_pt(&init_mm, page_to_pfn(base));
for (i = 0; i < PTRS_PER_PTE; i++, addr += PAGE_SIZE) {
set_pte(&pbase[i], pfn_pte(addr >> PAGE_SHIFT,
addr == address ? prot : ref_prot));