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/*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Copyright (c) 2011 Citrix Systems
*
*/
#include "xg_private.h"
#include "xc_core.h"
int
xc_core_arch_gpfn_may_present(struct xc_core_arch_context *arch_ctxt,
unsigned long pfn)
{
/* TODO: memory from DT */
if (pfn >= 0x80000 && pfn < 0x88000)
return 1;
return 0;
}
int
xc_core_arch_auto_translated_physmap(const xc_dominfo_t *info)
{
return 1;
}
int
xc_core_arch_memory_map_get(xc_interface *xch, struct xc_core_arch_context *unused,
xc_dominfo_t *info, shared_info_any_t *live_shinfo,
xc_core_memory_map_t **mapp,
unsigned int *nr_entries)
{
xen_pfn_t p2m_size = 0;
xc_core_memory_map_t *map;
if ( xc_domain_nr_gpfns(xch, info->domid, &p2m_size) < 0 )
return -1;
map = malloc(sizeof(*map));
if ( map == NULL )
{
PERROR("Could not allocate memory");
return -1;
}
map->addr = 0;
map->size = ((uint64_t)p2m_size) << PAGE_SHIFT;
*mapp = map;
*nr_entries = 1;
return 0;
}
static int
xc_core_arch_map_p2m_rw(xc_interface *xch, struct domain_info_context *dinfo, xc_dominfo_t *info,
shared_info_any_t *live_shinfo, xen_pfn_t **live_p2m,
unsigned long *pfnp, int rw)
{
errno = ENOSYS;
return -1;
}
int
xc_core_arch_map_p2m(xc_interface *xch, unsigned int guest_width, xc_dominfo_t *info,
shared_info_any_t *live_shinfo, xen_pfn_t **live_p2m,
unsigned long *pfnp)
{
struct domain_info_context _dinfo = { .guest_width = guest_width };
struct domain_info_context *dinfo = &_dinfo;
return xc_core_arch_map_p2m_rw(xch, dinfo, info,
live_shinfo, live_p2m, pfnp, 0);
}
int
xc_core_arch_map_p2m_writable(xc_interface *xch, unsigned int guest_width, xc_dominfo_t *info,
shared_info_any_t *live_shinfo, xen_pfn_t **live_p2m,
unsigned long *pfnp)
{
struct domain_info_context _dinfo = { .guest_width = guest_width };
struct domain_info_context *dinfo = &_dinfo;
return xc_core_arch_map_p2m_rw(xch, dinfo, info,
live_shinfo, live_p2m, pfnp, 1);
}
int
xc_core_arch_get_scratch_gpfn(xc_interface *xch, domid_t domid,
xen_pfn_t *gpfn)
{
/*
* The Grant Table region space is not used until the guest is
* booting. Use the first page for the scratch pfn.
*/
XC_BUILD_BUG_ON(GUEST_GNTTAB_SIZE < XC_PAGE_SIZE);
*gpfn = GUEST_GNTTAB_BASE >> XC_PAGE_SHIFT;
return 0;
}
/*
* Local variables:
* mode: C
* c-file-style: "BSD"
* c-basic-offset: 4
* tab-width: 4
* indent-tabs-mode: nil
* End:
*/
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