diff options
Diffstat (limited to 'translate-common.c')
-rw-r--r-- | translate-common.c | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/translate-common.c b/translate-common.c new file mode 100644 index 0000000000..619feb466e --- /dev/null +++ b/translate-common.c @@ -0,0 +1,56 @@ +/* + * 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; +uintptr_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 |