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/******************************************************************************
* cpufreq.c -- adapt 32b compat guest to 64b hypervisor.
*
* Copyright (C) 2008, Liu Jinsong <jinsong.liu@intel.com>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program 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
* 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 <xen/config.h>
#include <xen/types.h>
#include <xen/xmalloc.h>
#include <xen/guest_access.h>
#include <xen/pmstat.h>
#include <compat/platform.h>
DEFINE_XEN_GUEST_HANDLE(compat_processor_px_t);
int
compat_set_px_pminfo(uint32_t cpu, struct compat_processor_performance *perf)
{
struct xen_processor_performance *xen_perf;
unsigned long xlat_page_current;
xlat_malloc_init(xlat_page_current);
xen_perf = xlat_malloc_array(xlat_page_current,
struct xen_processor_performance, 1);
if ( unlikely(xen_perf == NULL) )
return -EFAULT;
#define XLAT_processor_performance_HNDL_states(_d_, _s_) do { \
XEN_GUEST_HANDLE(compat_processor_px_t) states; \
XEN_GUEST_HANDLE_PARAM(xen_processor_px_t) states_t; \
if ( unlikely(!compat_handle_okay((_s_)->states, (_s_)->state_count)) ) \
return -EFAULT; \
guest_from_compat_handle(states, (_s_)->states); \
states_t = guest_handle_cast(states, xen_processor_px_t); \
(_d_)->states = guest_handle_from_param(states_t, xen_processor_px_t); \
} while (0)
XLAT_processor_performance(xen_perf, perf);
#undef XLAT_processor_performance_HNDL_states
return set_px_pminfo(cpu, xen_perf);
}
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