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/* -*-  Mode:C; c-basic-offset:4; tab-width:4; indent-tabs-mode:nil -*- */
/*
 * vmx.h: prototype for generial vmx related interface
 * 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.
 *
 *      Kun Tian (Kevin Tian) (kevin.tian@intel.com)
 */

#ifndef _ASM_IA64_VMX_VPD_H_
#define _ASM_IA64_VMX_VPD_H_

#ifdef VTI_DEBUG
/*
 * must be power of 2.
 * Be carefull to avoid stack over flow keeping
 * struct arch_vmx_struct(i.e. struct vcpu) small enough.
 * sizeof(struct ivt_debug) * IVT_DEBUG_MAX = 32 * IVT_DEBUG_MAX
 */
//#define IVT_DEBUG_MAX 128     /* 4096 bytes */
#define IVT_DEBUG_MAX 16        /*  512 bytes */
#endif

#ifndef __ASSEMBLY__

#include <asm/vtm.h>
#include <asm/vmx_platform.h>
#include <public/xen.h>
#include <xen/spinlock.h>

struct sioemu_callback_info;

#define VPD_SHIFT	16
#define VPD_SIZE	(1 << VPD_SHIFT)

#ifdef VTI_DEBUG
struct ivt_debug{
    unsigned long iip;
    unsigned long ipsr;
    unsigned long ifa;
    unsigned long vector;
};
#endif

struct arch_vmx_struct {
//	vpd_t       *vpd;
    vtime_t	    vtm;
    unsigned long   vrr[8];
    /* if the corresponding bit is 1, then this page size is
       used in this region */
    unsigned long   psbits[8];
    unsigned long   vkr[8];
    unsigned long   cr_iipa;   /* for emulation */
    unsigned long   cr_isr;    /* for emulation */
    unsigned long   cause;
    unsigned long   opcode;
    unsigned long   mpta;
    unsigned long   xen_port;
    unsigned char   flags;
    unsigned char   xtp;
    unsigned char   pal_init_pending;
    unsigned char   mmu_mode; /* Current mmu mode.  See vmx_phy_mode.h  */
#ifdef VTI_DEBUG
    unsigned long  ivt_current;
    struct ivt_debug ivt_debug[IVT_DEBUG_MAX];
#endif
    /* sioemu info buffer.  */
    unsigned long sioemu_info_gpa;
    struct sioemu_callback_info *sioemu_info_mva;
};

#define VMX_DOMAIN(v)   v->arch.arch_vmx.flags

#define ARCH_VMX_DOMAIN         0       /* Need it to indicate VTi domain */

/* pin/unpin vpd area for PAL call with DTR[] */
void __vmx_vpd_pin(struct vcpu* v);
void __vmx_vpd_unpin(struct vcpu* v); 

static inline void vmx_vpd_pin(struct vcpu* v)
{
    if (likely(v == current))
        return;
    __vmx_vpd_pin(v);
}

static inline void vmx_vpd_unpin(struct vcpu* v)
{
    if (likely(v == current))
        return;
    __vmx_vpd_unpin(v);
}

#endif //__ASSEMBLY__

// VPD field offset
#define VPD_VAC_START_OFFSET		0
#define VPD_VDC_START_OFFSET		8
#define VPD_VHPI_START_OFFSET		256
#define VPD_VGR_START_OFFSET		1024
#define VPD_VBGR_START_OFFSET		1152
#define VPD_VNAT_START_OFFSET		1280
#define VPD_VBNAT_START_OFFSET		1288
#define VPD_VCPUID_START_OFFSET		1296
#define VPD_VPSR_START_OFFSET		1424
#define VPD_VPR_START_OFFSET		1432
#define VPD_VRSE_CFLE_START_OFFSET	1440
#define VPD_VCR_START_OFFSET		2048
#define VPD_VTPR_START_OFFSET		2576
#define VPD_VRR_START_OFFSET		3072
#define VPD_VMM_VAIL_START_OFFSET	31744


#endif /* _ASM_IA64_VMX_VPD_H_ */