vmx_platform.h

xen虚拟机源代码安装包

/*
 * vmx_platform.h: VMX platform support
 * Copyright (c) 2004, Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope 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.
 *
 */
#ifndef __ASM_IA64_VMX_PLATFORM_H__
#define __ASM_IA64_VMX_PLATFORM_H__

#include <public/xen.h>
#include <public/hvm/params.h>
#include <asm/viosapic.h>
#include <asm/hvm/vacpi.h>

struct vmx_ioreq_page {
    spinlock_t          lock;
    struct page_info   *page;
    void               *va;
};
int vmx_set_ioreq_page(struct domain *d,
                       struct vmx_ioreq_page *iorp, unsigned long gmfn);

typedef struct virtual_platform_def {
    struct vmx_ioreq_page       ioreq;
    struct vmx_ioreq_page       buf_ioreq;
    struct vmx_ioreq_page       buf_pioreq;
    unsigned long               pib_base;
    unsigned long               params[HVM_NR_PARAMS];
    /* One IOSAPIC now... */
    struct viosapic             viosapic;
    struct vacpi                vacpi;
} vir_plat_t;

static inline int __fls(uint32_t word)
{
    long double d = word;
    long exp;

    __asm__ __volatile__ ("getf.exp %0=%1" : "=r"(exp) : "f"(d));
    return word ? (exp - 0xffff) : -1;
}
#endif