/*

 * Alternate p2m HVM

 * Copyright (c) 2014, 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, see <http://www.gnu.org/licenses/>.

 */

#include <asm/hvm/support.h>

#include <asm/hvm/hvm.h>

#include <asm/p2m.h>

#include <asm/altp2m.h>

void

altp2m_vcpu_reset(struct vcpu *v)

{

    struct altp2mvcpu *av = &vcpu_altp2m(v);

    av->p2midx = INVALID_ALTP2M;

    av->veinfo_gfn = INVALID_GFN;

}

void

altp2m_vcpu_initialise(struct vcpu *v)

{

    if ( v != current )

        vcpu_pause(v);

    altp2m_vcpu_reset(v);

    vcpu_altp2m(v).p2midx = 0;

    atomic_inc(&p2m_get_altp2m(v)->active_vcpus);

    altp2m_vcpu_update_p2m(v);

    if ( v != current )

        vcpu_unpause(v);

}

void

altp2m_vcpu_destroy(struct vcpu *v)

{

    struct p2m_domain *p2m;

    if ( v != current )

        vcpu_pause(v);

    if ( (p2m = p2m_get_altp2m(v)) )

        atomic_dec(&p2m->active_vcpus);

    altp2m_vcpu_reset(v);

    altp2m_vcpu_update_p2m(v);

    altp2m_vcpu_update_vmfunc_ve(v);

    if ( v != current )

        vcpu_unpause(v);

}

/*

 * Local variables:

 * mode: C

 * c-file-style: "BSD"

 * c-basic-offset: 4

 * tab-width: 4

 * indent-tabs-mode: nil

 * End:

 */