C++ (Cpp) set_pte_vaddr Examples

Example #1

File: cpu_entry_area.c Project: avagin/linux

void cea_set_pte(void *cea_vaddr, phys_addr_t pa, pgprot_t flags)
{
	unsigned long va = (unsigned long) cea_vaddr;
	pte_t pte = pfn_pte(pa >> PAGE_SHIFT, flags);

	/*
	 * The cpu_entry_area is shared between the user and kernel
	 * page tables.  All of its ptes can safely be global.
	 * _PAGE_GLOBAL gets reused to help indicate PROT_NONE for
	 * non-present PTEs, so be careful not to set it in that
	 * case to avoid confusion.
	 */
	if (boot_cpu_has(X86_FEATURE_PGE) &&
	    (pgprot_val(flags) & _PAGE_PRESENT))
		pte = pte_set_flags(pte, _PAGE_GLOBAL);

	set_pte_vaddr(va, pte);
}

Example #2

/*
 * Associate a virtual page frame with a given physical page frame
 * and protection flags for that frame.
 */
void set_pte_mfn(unsigned long vaddr, unsigned long mfn, pgprot_t flags)
{
	set_pte_vaddr(vaddr, mfn_pte(mfn, flags));
}