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paravirt: add an "mm" argument to alloc_pt

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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>
This commit is contained in:
Jeremy Fitzhardinge
2007-07-18 08:47:40 -07:00
committed by Jeremy Fitzhardinge
parent 810bab448e
commit fdb4c338c8
5 changed files with 9 additions and 9 deletions
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include/asm-i386/paravirt.h
+3 -3
View File
@@ -173,7 +173,7 @@ struct paravirt_ops
unsigned long va);
/* Hooks for allocating/releasing pagetable pages */
void (*alloc_pt)(u32 pfn);
void (*alloc_pt)(struct mm_struct *mm, u32 pfn);
void (*alloc_pd)(u32 pfn);
void (*alloc_pd_clone)(u32 pfn, u32 clonepfn, u32 start, u32 count);
void (*release_pt)(u32 pfn);
@@ -725,9 +725,9 @@ static inline void flush_tlb_others(cpumask_t cpumask, struct mm_struct *mm,
PVOP_VCALL3(flush_tlb_others, &cpumask, mm, va);
}
static inline void paravirt_alloc_pt(unsigned pfn)
static inline void paravirt_alloc_pt(struct mm_struct *mm, unsigned pfn)
{
PVOP_VCALL1(alloc_pt, pfn);
PVOP_VCALL2(alloc_pt, mm, pfn);
}
static inline void paravirt_release_pt(unsigned pfn)
{
include/asm-i386/pgalloc.h
+3 -3
View File
@@ -7,7 +7,7 @@
#ifdef CONFIG_PARAVIRT
#include <asm/paravirt.h>
#else
#define paravirt_alloc_pt(pfn) do { } while (0)
#define paravirt_alloc_pt(mm, pfn) do { } while (0)
#define paravirt_alloc_pd(pfn) do { } while (0)
#define paravirt_alloc_pd(pfn) do { } while (0)
#define paravirt_alloc_pd_clone(pfn, clonepfn, start, count) do { } while (0)
@@ -17,13 +17,13 @@
#define pmd_populate_kernel(mm, pmd, pte) \
do { \
paravirt_alloc_pt(__pa(pte) >> PAGE_SHIFT); \
paravirt_alloc_pt(mm, __pa(pte) >> PAGE_SHIFT); \
set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte))); \
} while (0)
#define pmd_populate(mm, pmd, pte) \
do { \
paravirt_alloc_pt(page_to_pfn(pte)); \
paravirt_alloc_pt(mm, page_to_pfn(pte)); \
set_pmd(pmd, __pmd(_PAGE_TABLE + \
((unsigned long long)page_to_pfn(pte) << \
(unsigned long long) PAGE_SHIFT))); \