OXIESEC PANEL

Name	Size	Modified	Perms
📁 ..	-	11/17/2022 06:42:15 AM	rwxr-xr-x
📄 Kbuild	742 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 asm-compat.h	518 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 asm-offsets.h	35 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 atomic.h	626 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 cache.h	644 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 cacheflush.h	4.12 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 checksum.h	942 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 cmpxchg.h	919 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 cpuinfo.h	2.13 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 cputable.h	1 byte	01/28/2018 09:20:33 PM	rw-r--r--
📄 current.h	850 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 delay.h	2.26 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 dma-mapping.h	765 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 dma.h	706 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 elf.h	738 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 entry.h	1.13 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 exceptions.h	2.08 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 fixmap.h	1.96 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 flat.h	2.26 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 ftrace.h	641 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 futex.h	2.13 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 hash.h	2.37 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 highmem.h	2.2 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 hw_irq.h	1 byte	01/28/2018 09:20:33 PM	rw-r--r--
📄 io.h	2.05 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 irq.h	538 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 irqflags.h	2.6 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 kgdb.h	739 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 mmu.h	4.19 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 mmu_context.h	141 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 mmu_context_mm.h	3.91 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 module.h	840 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 page.h	6.11 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pci-bridge.h	4.57 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pci.h	2.47 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pgalloc.h	4.74 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 pgtable.h	17.66 KB	11/01/2022 04:52:05 PM	rw-r--r--
📄 processor.h	4.11 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 prom.h	713 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 ptrace.h	727 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 pvr.h	8.72 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 registers.h	1.65 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 seccomp.h	256 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 sections.h	637 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 setup.h	1.37 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 string.h	630 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 switch_to.h	629 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 syscall.h	2.26 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 thread_info.h	4.01 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 timex.h	402 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 tlb.h	714 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 tlbflush.h	2.04 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 uaccess.h	9.98 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 unaligned.h	871 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 unistd.h	1.19 KB	01/28/2018 09:20:33 PM	rw-r--r--
📄 unwind.h	719 bytes	01/28/2018 09:20:33 PM	rw-r--r--
📄 user.h	1 byte	01/28/2018 09:20:33 PM	rw-r--r--

Editing: pgalloc.h

/*
 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
 * Copyright (C) 2008-2009 PetaLogix
 * Copyright (C) 2006 Atmark Techno, Inc.
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License. See the file "COPYING" in the main directory of this archive
 * for more details.
 */

#ifndef _ASM_MICROBLAZE_PGALLOC_H
#define _ASM_MICROBLAZE_PGALLOC_H

#ifdef CONFIG_MMU

#include <linux/kernel.h>	/* For min/max macros */
#include <linux/highmem.h>
#include <asm/setup.h>
#include <asm/io.h>
#include <asm/page.h>
#include <asm/cache.h>
#include <asm/pgtable.h>

#define PGDIR_ORDER	0

/*
 * This is handled very differently on MicroBlaze since out page tables
 * are all 0's and I want to be able to use these zero'd pages elsewhere
 * as well - it gives us quite a speedup.
 * -- Cort
 */
extern struct pgtable_cache_struct {
	unsigned long *pgd_cache;
	unsigned long *pte_cache;
	unsigned long pgtable_cache_sz;
} quicklists;

#define pgd_quicklist		(quicklists.pgd_cache)
#define pmd_quicklist		((unsigned long *)0)
#define pte_quicklist		(quicklists.pte_cache)
#define pgtable_cache_size	(quicklists.pgtable_cache_sz)

extern unsigned long *zero_cache; /* head linked list of pre-zero'd pages */
extern atomic_t zero_sz; /* # currently pre-zero'd pages */
extern atomic_t zeropage_hits; /* # zero'd pages request that we've done */
extern atomic_t zeropage_calls; /* # zero'd pages request that've been made */
extern atomic_t zerototal; /* # pages zero'd over time */

#define zero_quicklist		(zero_cache)
#define zero_cache_sz	 	(zero_sz)
#define zero_cache_calls	(zeropage_calls)
#define zero_cache_hits		(zeropage_hits)
#define zero_cache_total	(zerototal)

/*
 * return a pre-zero'd page from the list,
 * return NULL if none available -- Cort
 */
extern unsigned long get_zero_page_fast(void);

extern void __bad_pte(pmd_t *pmd);

static inline pgd_t *get_pgd_slow(void)
{
	pgd_t *ret;

ret = (pgd_t *)__get_free_pages(GFP_KERNEL, PGDIR_ORDER);
	if (ret != NULL)
		clear_page(ret);
	return ret;
}

static inline pgd_t *get_pgd_fast(void)
{
	unsigned long *ret;

ret = pgd_quicklist;
	if (ret != NULL) {
		pgd_quicklist = (unsigned long *)(*ret);
		ret[0] = 0;
		pgtable_cache_size--;
	} else
		ret = (unsigned long *)get_pgd_slow();
	return (pgd_t *)ret;
}

static inline void free_pgd_fast(pgd_t *pgd)
{
	*(unsigned long **)pgd = pgd_quicklist;
	pgd_quicklist = (unsigned long *) pgd;
	pgtable_cache_size++;
}

static inline void free_pgd_slow(pgd_t *pgd)
{
	free_page((unsigned long)pgd);
}

#define pgd_free(mm, pgd)        free_pgd_fast(pgd)
#define pgd_alloc(mm)		get_pgd_fast()

#define pmd_pgtable(pmd)	pmd_page(pmd)

/*
 * We don't have any real pmd's, and this code never triggers because
 * the pgd will always be present..
 */
#define pmd_alloc_one_fast(mm, address)	({ BUG(); ((pmd_t *)1); })
#define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); })

extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);

static inline struct page *pte_alloc_one(struct mm_struct *mm,
		unsigned long address)
{
	struct page *ptepage;

#ifdef CONFIG_HIGHPTE
	int flags = GFP_KERNEL | __GFP_HIGHMEM;
#else
	int flags = GFP_KERNEL;
#endif

ptepage = alloc_pages(flags, 0);
	if (!ptepage)
		return NULL;
	clear_highpage(ptepage);
	if (!pgtable_page_ctor(ptepage)) {
		__free_page(ptepage);
		return NULL;
	}
	return ptepage;
}

static inline pte_t *pte_alloc_one_fast(struct mm_struct *mm,
		unsigned long address)
{
	unsigned long *ret;

ret = pte_quicklist;
	if (ret != NULL) {
		pte_quicklist = (unsigned long *)(*ret);
		ret[0] = 0;
		pgtable_cache_size--;
	}
	return (pte_t *)ret;
}

static inline void pte_free_fast(pte_t *pte)
{
	*(unsigned long **)pte = pte_quicklist;
	pte_quicklist = (unsigned long *) pte;
	pgtable_cache_size++;
}

static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
{
	free_page((unsigned long)pte);
}

static inline void pte_free_slow(struct page *ptepage)
{
	__free_page(ptepage);
}

static inline void pte_free(struct mm_struct *mm, struct page *ptepage)
{
	pgtable_page_dtor(ptepage);
	__free_page(ptepage);
}

#define __pte_free_tlb(tlb, pte, addr)	pte_free((tlb)->mm, (pte))

#define pmd_populate(mm, pmd, pte) \
			(pmd_val(*(pmd)) = (unsigned long)page_address(pte))

#define pmd_populate_kernel(mm, pmd, pte) \
		(pmd_val(*(pmd)) = (unsigned long) (pte))

/*
 * We don't have any real pmd's, and this code never triggers because
 * the pgd will always be present..
 */
#define pmd_alloc_one(mm, address)	({ BUG(); ((pmd_t *)2); })
#define pmd_free(mm, x)			do { } while (0)
#define __pmd_free_tlb(tlb, x, addr)	pmd_free((tlb)->mm, x)
#define pgd_populate(mm, pmd, pte)	BUG()

extern int do_check_pgt_cache(int, int);

#endif /* CONFIG_MMU */

#define check_pgt_cache()		do { } while (0)

#endif /* _ASM_MICROBLAZE_PGALLOC_H */