mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 18:21:39 +01:00
Wei Liu
3a7f872ae4
Only define BUILD_BUG_ON when there isn't one already, because mini-os currently leaks that. Signed-off-by: Wei Liu <wei.liu2@citrix.com> Acked-by: Ian Jackson <ian.jackson@eu.citrix.com>
123 lines
3.4 KiB
C
123 lines
3.4 KiB
C
/*
|
|
* 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, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
* Copyright (c) 2011 Citrix Systems
|
|
*
|
|
*/
|
|
|
|
#include "xg_private.h"
|
|
#include "xc_core.h"
|
|
|
|
#include <xen-tools/libs.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.
|
|
*/
|
|
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:
|
|
*/
|