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/*
* 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, write to the Free Software Foundation, Inc., 59 Temple
* Place - Suite 330, Boston, MA 02111-1307 USA.
*/
#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 = _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:
*/
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