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| author | Eduardo Habkost <ehabkost@redhat.com> | 2008-01-30 13:33:20 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 13:33:20 +0100 |
| commit | 9042219cd8d43b81322b826d463dd6e52acae6cf (patch) | |
| tree | 0ab4f602f36467ff21701a5aa29f840292ea108b /include | |
| parent | 1fe91514a3dc07ab540bc891589c46aaa47e92f6 (diff) | |
| download | linux-9042219cd8d43b81322b826d463dd6e52acae6cf.tar.gz linux-9042219cd8d43b81322b826d463dd6e52acae6cf.tar.bz2 linux-9042219cd8d43b81322b826d463dd6e52acae6cf.zip | |
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-x86/paravirt.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h index 62cecb7778ee..9f9ff57b3efb 100644 --- a/include/asm-x86/paravirt.h +++ b/include/asm-x86/paravirt.h @@ -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 |