/* * Copyright (C) 2006-2009 Free Software Foundation * * 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 #include #include #include #include #include #include unsigned long cr3; struct failsafe_callback_regs { unsigned int ds; unsigned int es; unsigned int fs; unsigned int gs; unsigned int ip; unsigned int cs_and_mask; unsigned int flags; }; void hyp_failsafe_c_callback(struct failsafe_callback_regs *regs) { printf("Fail-Safe callback!\n"); printf("IP: %08X CS: %4X DS: %4X ES: %4X FS: %4X GS: %4X FLAGS %08X MASK %04X\n", regs->ip, regs->cs_and_mask & 0xffff, regs->ds, regs->es, regs->fs, regs->gs, regs->flags, regs->cs_and_mask >> 16); panic("failsafe"); } extern void return_to_iret; void hypclock_machine_intr(int old_ipl, void *ret_addr, struct i386_interrupt_state *regs, unsigned64_t delta) { if (ret_addr == &return_to_iret) { clock_interrupt(delta/1000, /* usec per tick */ (regs->efl & EFL_VM) || /* user mode */ ((regs->cs & 0x02) != 0), /* user mode */ old_ipl == SPL0); /* base priority */ } else clock_interrupt(delta/1000, FALSE, FALSE); } void hyp_p2m_init(void) { unsigned long nb_pfns = atop(phys_last_addr); #ifdef MACH_PSEUDO_PHYS #define P2M_PAGE_ENTRIES (PAGE_SIZE / sizeof(unsigned long)) unsigned long *l3 = (unsigned long *)phystokv(pmap_grab_page()), *l2 = NULL; unsigned long i; for (i = 0; i < (nb_pfns + P2M_PAGE_ENTRIES) / P2M_PAGE_ENTRIES; i++) { if (!(i % P2M_PAGE_ENTRIES)) { l2 = (unsigned long *) phystokv(pmap_grab_page()); l3[i / P2M_PAGE_ENTRIES] = kv_to_mfn(l2); } l2[i % P2M_PAGE_ENTRIES] = kv_to_mfn(&mfn_list[i * P2M_PAGE_ENTRIES]); } hyp_shared_info.arch.pfn_to_mfn_frame_list_list = kv_to_mfn(l3); #endif hyp_shared_info.arch.max_pfn = nb_pfns; }