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x86: include/asm-x86/paravirt.h: x86_64 mmu operations 

Add .set_pgd field to pv_mmu_ops.

Implement pud_val(), __pud(), set_pgd(), pud_clear(), pgd_clear().

pud_clear() and pgd_clear() are implemented simply using set_pud()
and set_pmd(). They don't have a field at pv_mmu_ops.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Eduardo Habkost 2008-01-30 13:33:20 +01:00 committed by Ingo Molnar
parent 1fe91514a3
commit 9042219cd8
1 changed files with 55 additions and 0 deletions
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55
include/asm-x86/paravirt.h
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@ -259,6 +259,8 @@ struct pv_mmu_ops {
#if PAGETABLE_LEVELS == 4
pudval_t (*pud_val)(pud_t);
pud_t (*make_pud)(pudval_t pud);
void (*set_pgd)(pgd_t *pudp, pgd_t pgdval);
#endif /* PAGETABLE_LEVELS == 4 */
#endif /* PAGETABLE_LEVELS >= 3 */
@ -1065,6 +1067,59 @@ static inline void set_pud(pud_t *pudp, pud_t pud)
PVOP_VCALL2(pv_mmu_ops.set_pud, pudp,
val);
}
#if PAGETABLE_LEVELS == 4
static inline pud_t __pud(pudval_t val)
{
pudval_t ret;
if (sizeof(pudval_t) > sizeof(long))
ret = PVOP_CALL2(pudval_t, pv_mmu_ops.make_pud,
val, (u64)val >> 32);
else
ret = PVOP_CALL1(pudval_t, pv_mmu_ops.make_pud,
val);
return (pud_t) { ret };
}
static inline pudval_t pud_val(pud_t pud)
{
pudval_t ret;
if (sizeof(pudval_t) > sizeof(long))
ret = PVOP_CALL2(pudval_t, pv_mmu_ops.pud_val,
pud.pud, (u64)pud.pud >> 32);
else
ret = PVOP_CALL1(pudval_t, pv_mmu_ops.pud_val,
pud.pud);
return ret;
}
static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
{
pgdval_t val = native_pgd_val(pgd);
if (sizeof(pgdval_t) > sizeof(long))
PVOP_VCALL3(pv_mmu_ops.set_pgd, pgdp,
val, (u64)val >> 32);
else
PVOP_VCALL2(pv_mmu_ops.set_pgd, pgdp,
val);
}
static inline void pgd_clear(pgd_t *pgdp)
{
set_pgd(pgdp, __pgd(0));
}
static inline void pud_clear(pud_t *pudp)
{
set_pud(pudp, __pud(0));
}
#endif /* PAGETABLE_LEVELS == 4 */
#endif /* PAGETABLE_LEVELS >= 3 */
#ifdef CONFIG_X86_PAE