- /* The pointer to the Guest's "struct lguest_data" is the only
- * argument. */
- lg->lguest_data = (struct lguest_data __user *)lg->regs->edx;
- /* If we check the address they gave is OK now, we can simply
- * copy_to_user/from_user from now on rather than using lgread/lgwrite.
- * I put this in to show that I'm not immune to writing stupid
- * optimizations. */
- if (!lguest_address_ok(lg, lg->regs->edx, sizeof(*lg->lguest_data))) {
- kill_guest(lg, "bad guest page %p", lg->lguest_data);
- return;
- }
- /* The Guest tells us where we're not to deliver interrupts by putting
- * the range of addresses into "struct lguest_data". */
- if (get_user(lg->noirq_start, &lg->lguest_data->noirq_start)
- || get_user(lg->noirq_end, &lg->lguest_data->noirq_end)
- /* We tell the Guest that it can't use the top 4MB of virtual
- * addresses used by the Switcher. */
- || put_user(4U*1024*1024, &lg->lguest_data->reserve_mem)
- || put_user(tsc_speed, &lg->lguest_data->tsc_khz)
- /* We also give the Guest a unique id, as used in lguest_net.c. */
- || put_user(lg->guestid, &lg->lguest_data->guestid))
- kill_guest(lg, "bad guest page %p", lg->lguest_data);
+ /*
+ * The Guest tells us where we're not to deliver interrupts by putting
+ * the range of addresses into "struct lguest_data".
+ */
+ if (get_user(cpu->lg->noirq_start, &cpu->lg->lguest_data->noirq_start)
+ || get_user(cpu->lg->noirq_end, &cpu->lg->lguest_data->noirq_end))
+ kill_guest(cpu, "bad guest page %p", cpu->lg->lguest_data);
+
+ /*
+ * We write the current time into the Guest's data page once so it can
+ * set its clock.
+ */
+ write_timestamp(cpu);
+
+ /* page_tables.c will also do some setup. */
+ page_table_guest_data_init(cpu);