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/******************************************************************************
* xeno/mm/hypervisor.c
*
* Update page tables via the hypervisor.
*
* Copyright (c) 2002, K A Fraser
*/
#include <linux/config.h>
#include <asm/hypervisor.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#define QUEUE_SIZE 1
static page_update_request_t update_queue[QUEUE_SIZE];
void queue_l1_entry_update(unsigned long ptr, unsigned long val)
{
update_queue[0].ptr = ptr + start_info.phys_base;
update_queue[0].val = val;
flush_page_update_queue();
}
void queue_l2_entry_update(unsigned long ptr, unsigned long val)
{
update_queue[0].ptr = ptr + start_info.phys_base;
update_queue[0].val = val;
flush_page_update_queue();
}
void queue_baseptr_create(unsigned long ptr)
{
update_queue[0].ptr = PGREQ_ADD_BASEPTR;
update_queue[0].val = ptr + start_info.phys_base;
flush_page_update_queue();
}
void queue_baseptr_remove(unsigned long ptr)
{
update_queue[0].ptr = PGREQ_REMOVE_BASEPTR;
update_queue[0].val = ptr + start_info.phys_base;
flush_page_update_queue();
}
void queue_tlb_flush(void)
{
/* nothing */
}
void queue_tlb_flush_one(unsigned long ptr)
{
/* nothing */
}
void flush_page_update_queue(void)
{
HYPERVISOR_pt_update(update_queue, 1);
}
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