2 * Host code generation common components
4 * Copyright (c) 2015 Peter Crosthwaite <crosthwaite.peter@gmail.com>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
20 #include "qemu/osdep.h"
21 #include "qemu-common.h"
23 #include "sysemu/cpus.h"
25 uintptr_t qemu_real_host_page_size;
26 intptr_t qemu_real_host_page_mask;
28 #ifndef CONFIG_USER_ONLY
29 /* mask must never be zero, except for A20 change call */
30 static void tcg_handle_interrupt(CPUState *cpu, int mask)
34 old_mask = cpu->interrupt_request;
35 cpu->interrupt_request |= mask;
38 * If called from iothread context, wake the target cpu in
41 if (!qemu_cpu_is_self(cpu)) {
47 cpu->icount_decr.u16.high = 0xffff;
49 && (mask & ~old_mask) != 0) {
50 cpu_abort(cpu, "Raised interrupt while not in I/O function");
53 cpu->tcg_exit_req = 1;
57 CPUInterruptHandler cpu_interrupt_handler = tcg_handle_interrupt;