[PATCH 21/24] native versions for page table entries values

Glauber de Oliveira Costa
2007-11-09T18:43:02Z

This patch turns the page operations (set and make a page table)
into native_ versions. The operations itself will be later
overriden by paravirt.

It uses unsigned long long for consistency with 32-bit. So we
have to fix fault_64.c to get rid of warnings.

Signed-off-by: Glauber de Oliveira Costa <gcosta-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Signed-off-by: Steven Rostedt <rostedt-nx8X9YLhiw1AfugRpC6u6w@public.gmane.org>
Acked-by: Jeremy Fitzhardinge <jeremy-8XJ3FbD+ij9l57MIdRCFDg@public.gmane.org>
---
arch/x86/mm/fault_64.c | 8 +++---
include/asm-x86/page_64.h | 56 +++++++++++++++++++++++++++++++++++++++++----
2 files changed, 55 insertions(+), 9 deletions(-)

diff --git a/arch/x86/mm/fault_64.c b/arch/x86/mm/fault_64.c
index 161c0d1..86b7307 100644
--- a/arch/x86/mm/fault_64.c
+++ b/arch/x86/mm/fault_64.c
@@ -157,22 +157,22 @@ void dump_pagetable(unsigned long address)
pgd = __va((unsigned long)pgd & PHYSICAL_PAGE_MASK);
pgd += pgd_index(address);
if (bad_address(pgd)) goto bad;
- printk("PGD %lx ", pgd_val(*pgd));
+ printk("PGD %llx ", pgd_val(*pgd));
if (!pgd_present(*pgd)) goto ret;

pud = pud_offset(pgd, address);
if (bad_address(pud)) goto bad;
- printk("PUD %lx ", pud_val(*pud));
+ printk("PUD %llx ", pud_val(*pud));
if (!pud_present(*pud)) goto ret;

pmd = pmd_offset(pud, address);
if (bad_address(pmd)) goto bad;
- printk("PMD %lx ", pmd_val(*pmd));
+ printk("PMD %llx ", pmd_val(*pmd));
if (!pmd_present(*pmd) || pmd_large(*pmd)) goto ret;

pte = pte_offset_kernel(pmd, address);
if (bad_address(pte)) goto bad;
- printk("PTE %lx", pte_val(*pte));
+ printk("PTE %llx", pte_val(*pte));
ret:
printk("\n");
return;
diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
index 6fdc904..b8da60c 100644
--- a/include/asm-x86/page_64.h
+++ b/include/asm-x86/page_64.h
@@ -65,16 +65,62 @@ typedef struct { unsigned long pgprot; } pgprot_t;

extern unsigned long phys_base;

-#define pte_val(x) ((x).pte)
-#define pmd_val(x) ((x).pmd)
-#define pud_val(x) ((x).pud)
-#define pgd_val(x) ((x).pgd)
-#define pgprot_val(x) ((x).pgprot)
+static inline unsigned long long native_pte_val(pte_t pte)
+{
+ return pte.pte;
+}
+
+static inline unsigned long long native_pud_val(pud_t pud)
+{
+ return pud.pud;
+}
+
+
+static inline unsigned long long native_pmd_val(pmd_t pmd)
+{
+ return pmd.pmd;
+}
+
+static inline unsigned long long native_pgd_val(pgd_t pgd)
+{
+ return pgd.pgd;
+}
+
+static inline pte_t native_make_pte(unsigned long long pte)
+{
+ return (pte_t){ pte };
+}
+
+static inline pud_t native_make_pud(unsigned long long pud)
+{
+ return (pud_t){ pud };
+}
+
+static inline pmd_t native_make_pmd(unsigned long long pmd)
+{
+ return (pmd_t){ pmd };
+}
+
+static inline pgd_t native_make_pgd(unsigned long long pgd)
+{
+ return (pgd_t){ pgd };
+}
+
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#define pte_val(x) native_pte_val(x)
+#define pmd_val(x) native_pmd_val(x)
+#define pud_val(x) native_pud_val(x)
+#define pgd_val(x) native_pgd_val(x)

#define __pte(x) ((pte_t) { (x) } )
#define __pmd(x) ((pmd_t) { (x) } )
#define __pud(x) ((pud_t) { (x) } )
#define __pgd(x) ((pgd_t) { (x) } )
+#endif /* CONFIG_PARAVIRT */
+
+#define pgprot_val(x) ((x).pgprot)
#define __pgprot(x) ((pgprot_t) { (x) } )

#endif /* !__ASSEMBLY__ */