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/*
* Copyright (C) 2007 Samuel Thibault <samuel.thibault@ens-lyon.org>
*
* 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 the program ; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <sys/types.h>
#include <string.h>
#include <mach/xen.h>
#include <machine/xen.h>
#include <machine/ipl.h>
#include <xen/block.h>
#include <xen/console.h>
#include <xen/grant.h>
#include <xen/net.h>
#include <xen/store.h>
#include <xen/time.h>
#include "xen.h"
#include "evt.h"
void hyp_invalidate_pte(pt_entry_t *pte)
{
if (!hyp_mmu_update_pte(kv_to_ma(pte), (*pte) & ~INTEL_PTE_VALID))
panic("%s:%d could not set pte %p(%p) to %p(%p)\n",__FILE__,__LINE__,pte,kv_to_ma(pte),*pte,pa_to_ma(*pte));
hyp_mmuext_op_void(MMUEXT_TLB_FLUSH_LOCAL);
}
void hyp_debug()
{
panic("debug");
}
void hyp_init(void)
{
hyp_grant_init();
hyp_store_init();
/* these depend on the above */
hyp_block_init();
hyp_net_init();
evtchn_port_t port = hyp_event_channel_bind_virq(VIRQ_DEBUG, 0);
hyp_evt_handler(port, hyp_debug, 0, SPL7);
}
void _hyp_halt(void)
{
hyp_halt();
}
void _hyp_todo(unsigned long from)
{
printf("TODO: at %lx\n",from);
hyp_halt();
}
extern int int_mask[];
void hyp_idle(void)
{
int cpu = 0;
hyp_shared_info.vcpu_info[cpu].evtchn_upcall_mask = 0xff;
barrier();
/* Avoid blocking if there are pending events */
if (!hyp_shared_info.vcpu_info[cpu].evtchn_upcall_pending &&
!hyp_shared_info.evtchn_pending[cpu])
hyp_block();
while (1) {
hyp_shared_info.vcpu_info[cpu].evtchn_upcall_mask = 0x00;
barrier();
if (!hyp_shared_info.vcpu_info[cpu].evtchn_upcall_pending &&
!hyp_shared_info.evtchn_pending[cpu])
/* Didn't miss any event, can return to threads. */
break;
hyp_shared_info.vcpu_info[cpu].evtchn_upcall_mask = 0xff;
hyp_c_callback(NULL,NULL);
}
}
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