xen/arch/ia64/xen/dom_fw_domu.c


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/******************************************************************************
 *
 * Copyright (c) 2007 Isaku Yamahata <yamahata at valinux co jp>
 *                    VA Linux Systems Japan K.K.
 *
 * 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 of the License, 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
/*
 *  Xen domain firmware emulation support
 *  Copyright (C) 2004 Hewlett-Packard Co.
 *       Dan Magenheimer (dan.magenheimer@hp.com)
 */

#ifdef __XEN__
#include <xen/sched.h>
#include <asm/dom_fw_utils.h>
#include <linux/sort.h>
#define xen_ia64_dom_fw_map(d, mpaddr)  domain_mpa_to_imva((d), (mpaddr))
#define xen_ia64_dom_fw_unmap(d, vaddr)  do { } while (0)
#else
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <errno.h>
#include <inttypes.h>

#include <xen/xen.h>

#include "xg_private.h"
#include "xc_dom.h"
#include "ia64/xc_dom_ia64_util.h"
#endif

#include <asm/dom_fw.h>
#include <asm/dom_fw_domu.h>

void efi_systable_init_domu(struct fw_tables *tables)
{
	int i = 1;

	printk(XENLOG_GUEST XENLOG_INFO "DomainU EFI build up:");

	tables->efi_tables[i].guid = ACPI_20_TABLE_GUID;
	tables->efi_tables[i].table = FW_ACPI_BASE_PADDR;
	printk(" ACPI 2.0=0x%lx", tables->efi_tables[i].table);
	i++;
	printk("\n");
	BUG_ON(i > NUM_EFI_SYS_TABLES);
}

int
complete_domu_memmap(domain_t * d,
		     struct fw_tables *tables,
		     unsigned long maxmem,
		     unsigned long memmap_info_pfn,
		     unsigned long memmap_info_num_pages)
{
	efi_memory_desc_t *md;
	int create_memmap = 0;
	xen_ia64_memmap_info_t *memmap_info;
	unsigned long memmap_info_size;
	unsigned long paddr_start;
	unsigned long paddr_end;
	void *p;
	void *memmap_start;
	void *memmap_end;

	if (memmap_info_pfn == 0 || memmap_info_num_pages == 0) {
		/* old domain builder which doesn't setup
		 * memory map. create it for compatibility */
		memmap_info_pfn = (maxmem >> PAGE_SHIFT) - 1;
		memmap_info_num_pages = 1;
		create_memmap = 1;
	}

	memmap_info_size = memmap_info_num_pages << PAGE_SHIFT;
	paddr_start = memmap_info_pfn << PAGE_SHIFT;
	/* 3 = start info page, xenstore page and console page */
	paddr_end = paddr_start + memmap_info_size + 3 * PAGE_SIZE;
	memmap_info = xen_ia64_dom_fw_map(d, paddr_start);

	if (memmap_info->efi_memmap_size == 0) {
		create_memmap = 1;
	} else if (memmap_info->efi_memdesc_size != sizeof(md[0]) ||
		   memmap_info->efi_memdesc_version !=
		   EFI_MEMORY_DESCRIPTOR_VERSION) {
		printk(XENLOG_WARNING
		       "%s: Warning: unknown memory map "
		       "memmap size %" PRIu64 " "
		       "memdesc size %" PRIu64 " "
		       "version %" PRIu32 "\n",
		       __func__,
		       memmap_info->efi_memmap_size,
		       memmap_info->efi_memdesc_size,
		       memmap_info->efi_memdesc_version);