/* * Host code generation common components * * Copyright (c) 2015 Peter Crosthwaite <crosthwaite.peter@gmail.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see <http://www.gnu.org/licenses/>. */ #include "qemu-common.h" #include "qom/cpu.h" uintptr_t qemu_real_host_page_size; intptr_t qemu_real_host_page_mask; #ifndef CONFIG_USER_ONLY /* mask must never be zero, except for A20 change call */ static void tcg_handle_interrupt(CPUState *cpu, int mask) { int old_mask; old_mask = cpu->interrupt_request; cpu->interrupt_request |= mask; /* * If called from iothread context, wake the target cpu in * case its halted. */ if (!qemu_cpu_is_self(cpu)) { qemu_cpu_kick(cpu); return; } if (use_icount) { cpu->icount_decr.u16.high = 0xffff; if (!cpu->can_do_io && (mask & ~old_mask) != 0) { cpu_abort(cpu, "Raised interrupt while not in I/O function"); } } else { cpu->tcg_exit_req = 1; } } CPUInterruptHandler cpu_interrupt_handler = tcg_handle_interrupt; #endif