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| author | Jeremy Fitzhardinge <jeremy@goop.org> | 2008-06-17 11:41:59 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-06-20 15:09:54 +0200 |
| commit | d494a96125c99f1e37b1f831b29b42c9b712ee05 (patch) | |
| tree | 2a43489c1e3ba0fce51326e7548512252a052eef | |
| parent | 7c7e6e07e2a7c0d2d96389f4f0540e44a80ecdaa (diff) | |
| download | blackbird-obmc-linux-d494a96125c99f1e37b1f831b29b42c9b712ee05.tar.gz blackbird-obmc-linux-d494a96125c99f1e37b1f831b29b42c9b712ee05.zip | |
x86: implement set_pte_vaddr
Signed-off-by: Jeremy Fitzhardinge <jeremy@xensource.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | arch/x86/mm/init_64.c | 9 | ||||
| -rw-r--r-- | arch/x86/mm/pgtable.c | 2 | ||||
| -rw-r--r-- | arch/x86/mm/pgtable_32.c | 6 | ||||
| -rw-r--r-- | include/asm-x86/pgtable.h | 3 |
4 files changed, 11 insertions, 9 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index e5f531949857..74fae8335128 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -135,15 +135,15 @@ static __init void *spp_getpage(void) return ptr; } -static void -set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot) +void +set_pte_vaddr(unsigned long vaddr, pte_t new_pte) { pgd_t *pgd; pud_t *pud; pmd_t *pmd; - pte_t *pte, new_pte; + pte_t *pte; - pr_debug("set_pte_phys %lx to %lx\n", vaddr, phys); + pr_debug("set_pte_vaddr %lx to %lx\n", vaddr, native_pte_val(new_pte)); pgd = pgd_offset_k(vaddr); if (pgd_none(*pgd)) { @@ -170,7 +170,6 @@ set_pte_phys(unsigned long vaddr, unsigned long phys, pgprot_t prot) return; } } - new_pte = pfn_pte(phys >> PAGE_SHIFT, prot); pte = pte_offset_kernel(pmd, vaddr); if (!pte_none(*pte) && pte_val(new_pte) && diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c index 3ebebe480b53..7498124e30fc 100644 --- a/arch/x86/mm/pgtable.c +++ b/arch/x86/mm/pgtable.c @@ -285,6 +285,6 @@ void __set_fixmap (enum fixed_addresses idx, unsigned long phys, pgprot_t flags) BUG(); return; } - set_pte_pfn(address, phys >> PAGE_SHIFT, flags); + set_pte_vaddr(address, pfn_pte(phys >> PAGE_SHIFT, flags)); fixmaps_set++; } diff --git a/arch/x86/mm/pgtable_32.c b/arch/x86/mm/pgtable_32.c index 3f97c3c87288..0662f345212f 100644 --- a/arch/x86/mm/pgtable_32.c +++ b/arch/x86/mm/pgtable_32.c @@ -71,7 +71,7 @@ void show_mem(void) * Associate a virtual page frame with a given physical page frame * and protection flags for that frame. */ -static void set_pte_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags) +void set_pte_vaddr(unsigned long vaddr, pte_t pteval) { pgd_t *pgd; pud_t *pud; @@ -94,8 +94,8 @@ static void set_pte_pfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags) return; } pte = pte_offset_kernel(pmd, vaddr); - if (pgprot_val(flags)) - set_pte_present(&init_mm, vaddr, pte, pfn_pte(pfn, flags)); + if (pte_val(pteval)) + set_pte_present(&init_mm, vaddr, pte, pteval); else pte_clear(&init_mm, vaddr, pte); diff --git a/include/asm-x86/pgtable.h b/include/asm-x86/pgtable.h index 97c271b2910b..702f2699c6df 100644 --- a/include/asm-x86/pgtable.h +++ b/include/asm-x86/pgtable.h @@ -318,6 +318,9 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, unsigned long size, pgprot_t *vma_prot); #endif +/* Install a pte for a particular vaddr in kernel space. */ +void set_pte_vaddr(unsigned long vaddr, pte_t pte); + #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> #else /* !CONFIG_PARAVIRT */ |
