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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>
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1 changed files with 55 additions and 0 deletions
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@ -259,6 +259,8 @@ struct pv_mmu_ops {
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#if PAGETABLE_LEVELS == 4
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pudval_t (*pud_val)(pud_t);
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pud_t (*make_pud)(pudval_t pud);
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void (*set_pgd)(pgd_t *pudp, pgd_t pgdval);
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#endif /* PAGETABLE_LEVELS == 4 */
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#endif /* PAGETABLE_LEVELS >= 3 */
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@ -1065,6 +1067,59 @@ static inline void set_pud(pud_t *pudp, pud_t pud)
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PVOP_VCALL2(pv_mmu_ops.set_pud, pudp,
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val);
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}
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#if PAGETABLE_LEVELS == 4
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static inline pud_t __pud(pudval_t val)
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{
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pudval_t ret;
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if (sizeof(pudval_t) > sizeof(long))
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ret = PVOP_CALL2(pudval_t, pv_mmu_ops.make_pud,
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val, (u64)val >> 32);
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else
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ret = PVOP_CALL1(pudval_t, pv_mmu_ops.make_pud,
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val);
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return (pud_t) { ret };
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}
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static inline pudval_t pud_val(pud_t pud)
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{
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pudval_t ret;
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if (sizeof(pudval_t) > sizeof(long))
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ret = PVOP_CALL2(pudval_t, pv_mmu_ops.pud_val,
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pud.pud, (u64)pud.pud >> 32);
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else
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ret = PVOP_CALL1(pudval_t, pv_mmu_ops.pud_val,
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pud.pud);
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return ret;
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}
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static inline void set_pgd(pgd_t *pgdp, pgd_t pgd)
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{
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pgdval_t val = native_pgd_val(pgd);
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if (sizeof(pgdval_t) > sizeof(long))
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PVOP_VCALL3(pv_mmu_ops.set_pgd, pgdp,
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val, (u64)val >> 32);
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else
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PVOP_VCALL2(pv_mmu_ops.set_pgd, pgdp,
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val);
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}
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static inline void pgd_clear(pgd_t *pgdp)
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{
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set_pgd(pgdp, __pgd(0));
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}
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static inline void pud_clear(pud_t *pudp)
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{
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set_pud(pudp, __pud(0));
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}
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#endif /* PAGETABLE_LEVELS == 4 */
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#endif /* PAGETABLE_LEVELS >= 3 */
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#ifdef CONFIG_X86_PAE
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