521c9e1b1a
Since 288a5fe980, we don't link translation blocks
directly to palcode entry points. If we load palbr
from env instead of encoding the constant, we avoid
all need for tb_flush().
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
/*
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* Helpers for system instructions.
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*
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* Copyright (c) 2007 Jocelyn Mayer
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "cpu.h"
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#include "exec/cputlb.h"
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#include "exec/helper-proto.h"
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#include "system/runstate.h"
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#include "system/system.h"
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#include "qemu/timer.h"
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/* PALcode support special instructions */
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void helper_tbia(CPUAlphaState *env)
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{
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tlb_flush(env_cpu(env));
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}
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void helper_tbis(CPUAlphaState *env, uint64_t p)
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{
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tlb_flush_page(env_cpu(env), p);
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}
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void helper_halt(uint64_t restart)
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{
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if (restart) {
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qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
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} else {
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qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
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}
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}
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uint64_t helper_get_vmtime(void)
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{
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return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
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}
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uint64_t helper_get_walltime(void)
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{
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return qemu_clock_get_ns(rtc_clock);
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}
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void helper_set_alarm(CPUAlphaState *env, uint64_t expire)
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{
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AlphaCPU *cpu = env_archcpu(env);
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if (expire) {
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env->alarm_expire = expire;
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timer_mod(cpu->alarm_timer, expire);
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} else {
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timer_del(cpu->alarm_timer);
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}
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}
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