File diff 0d186246d211 → 763922b5834e
BLD/build/HEADERS/CUR-9-vmkdrivers-asm-x64/vmkernel64/release/asm/crash.h
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new file 100644
 
#ifndef _ASM_X86_64_CRASH_H
 
#define _ASM_X86_64_CRASH_H
 

	
 
/*
 
 * linux/include/asm-x86_64/crash.h
 
 *
 
 * Copyright (c) 2004 Red Hat, Inc. All rights reserved.
 
 *
 
 * This program is free software; you can redistribute it and/or modify
 
 * it under the terms of the GNU General Public License as published by
 
 * the Free Software Foundation; either version 2, or (at your option)
 
 * any later version.
 
 *
 
 * This program is distributed in the hope that it will be useful,
 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
 * GNU General Public License for more details.
 
 *
 
 * You should have received a copy of the GNU General Public License
 
 * along with this program; if not, write to the Free Software
 
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
 *
 
 */
 

	
 
#ifdef __KERNEL__
 

	
 
#include <linux/mm.h>
 
#include <linux/highmem.h>
 
#include <asm/mmzone.h>
 

	
 
extern int page_is_ram(unsigned long);
 

	
 
static inline void *
 
map_virtual(u64 offset, struct page **pp)
 
{
 
	struct page *page;
 
	unsigned long pfn;
 
	void *vaddr;
 

	
 
	pfn = (unsigned long)(offset >> PAGE_SHIFT);
 

	
 
	if (!page_is_ram(pfn)) {
 
		printk(KERN_INFO
 
		    "crash memory driver: !page_is_ram(pfn: %lx)\n", pfn);
 
		return NULL;
 
	}
 

	
 
	if (!pfn_valid(pfn)) {
 
		printk(KERN_INFO
 
		    "crash memory driver: invalid pfn: %lx )\n", pfn);
 
		return NULL;
 
	}
 

	
 
	page = pfn_to_page(pfn);
 

	
 
	vaddr = kmap(page);
 
	if (!vaddr) {
 
		printk(KERN_INFO
 
		    "crash memory driver: pfn: %lx kmap(page: %lx) failed\n", 
 
			pfn, (unsigned long)page);
 
		return NULL;
 
	}
 

	
 
	*pp = page;
 
	return (vaddr + (offset & (PAGE_SIZE-1)));
 
}
 

	
 
static inline void unmap_virtual(struct page *page) 
 
{ 
 
	kunmap(page);
 
}
 

	
 
#endif /* __KERNEL__ */
 

	
 
#endif /* _ASM_X86_64_CRASH_H */