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authorJeremy Fitzhardinge <jeremy@goop.org>2008-01-30 07:32:57 -0500
committerIngo Molnar <mingo@elte.hu>2008-01-30 07:32:57 -0500
commitc8e5393ab38564d2f45b560a2f95bc8f9ff6f823 (patch)
tree2976d59bb412786712bddec0eedf82e1db58401d /include/xen/page.h
parentb7fff536d0ad45c4810f9b99845c707ceadc3afc (diff)
x86: page.h: make pte_t a union to always include
Make sure pte_t, whatever its definition, has a pte element with type pteval_t. This allows common code to access it without needing to be specifically parameterised on what pagetable mode we're compiling for. For 32-bit, this means that pte_t becomes a union with "pte" and "{ pte_low, pte_high }" (PAE) or just "pte_low" (non-PAE). Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'include/xen/page.h')
-rw-r--r--include/xen/page.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/xen/page.h b/include/xen/page.h
index c0c8fcb27899..031ef22a971e 100644
--- a/include/xen/page.h
+++ b/include/xen/page.h
@@ -156,16 +156,16 @@ static inline pte_t mfn_pte(unsigned long page_nr, pgprot_t pgprot)
156 156
157static inline unsigned long long pte_val_ma(pte_t x) 157static inline unsigned long long pte_val_ma(pte_t x)
158{ 158{
159 return ((unsigned long long)x.pte_high << 32) | x.pte_low; 159 return x.pte;
160} 160}
161#define pmd_val_ma(v) ((v).pmd) 161#define pmd_val_ma(v) ((v).pmd)
162#define pud_val_ma(v) ((v).pgd.pgd) 162#define pud_val_ma(v) ((v).pgd.pgd)
163#define __pte_ma(x) ((pte_t) { .pte_low = (x), .pte_high = (x)>>32 } ) 163#define __pte_ma(x) ((pte_t) { .pte = (x) })
164#define __pmd_ma(x) ((pmd_t) { (x) } ) 164#define __pmd_ma(x) ((pmd_t) { (x) } )
165#else /* !X86_PAE */ 165#else /* !X86_PAE */
166#define pte_mfn(_pte) ((_pte).pte_low >> PAGE_SHIFT) 166#define pte_mfn(_pte) ((_pte).pte_low >> PAGE_SHIFT)
167#define mfn_pte(pfn, prot) __pte_ma(((pfn) << PAGE_SHIFT) | pgprot_val(prot)) 167#define mfn_pte(pfn, prot) __pte_ma(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
168#define pte_val_ma(x) ((x).pte_low) 168#define pte_val_ma(x) ((x).pte)
169#define pmd_val_ma(v) ((v).pud.pgd.pgd) 169#define pmd_val_ma(v) ((v).pud.pgd.pgd)
170#define __pte_ma(x) ((pte_t) { (x) } ) 170#define __pte_ma(x) ((pte_t) { (x) } )
171#endif /* CONFIG_X86_PAE */ 171#endif /* CONFIG_X86_PAE */