qemu/target/alpha/sys_helper.c
Markus Armbruster 54d31236b9 sysemu: Split sysemu/runstate.h off sysemu/sysemu.h
sysemu/sysemu.h is a rather unfocused dumping ground for stuff related
to the system-emulator.  Evidence:

* It's included widely: in my "build everything" tree, changing
  sysemu/sysemu.h still triggers a recompile of some 1100 out of 6600
  objects (not counting tests and objects that don't depend on
  qemu/osdep.h, down from 5400 due to the previous two commits).

* It pulls in more than a dozen additional headers.

Split stuff related to run state management into its own header
sysemu/runstate.h.

Touching sysemu/sysemu.h now recompiles some 850 objects.  qemu/uuid.h
also drops from 1100 to 850, and qapi/qapi-types-run-state.h from 4400
to 4200.  Touching new sysemu/runstate.h recompiles some 500 objects.

Since I'm touching MAINTAINERS to add sysemu/runstate.h anyway, also
add qemu/main-loop.h.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190812052359.30071-30-armbru@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
[Unbreak OS-X build]
2019-08-16 13:37:36 +02:00

93 lines
2.5 KiB
C

/*
* Helpers for system instructions.
*
* Copyright (c) 2007 Jocelyn Mayer
*
* 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/osdep.h"
#include "cpu.h"
#include "exec/exec-all.h"
#include "exec/helper-proto.h"
#include "sysemu/runstate.h"
#include "sysemu/sysemu.h"
#include "qemu/timer.h"
uint64_t helper_load_pcc(CPUAlphaState *env)
{
#ifndef CONFIG_USER_ONLY
/* In system mode we have access to a decent high-resolution clock.
In order to make OS-level time accounting work with the RPCC,
present it with a well-timed clock fixed at 250MHz. */
return (((uint64_t)env->pcc_ofs << 32)
| (uint32_t)(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) >> 2));
#else
/* In user-mode, QEMU_CLOCK_VIRTUAL doesn't exist. Just pass through the host cpu
clock ticks. Also, don't bother taking PCC_OFS into account. */
return (uint32_t)cpu_get_host_ticks();
#endif
}
/* PALcode support special instructions */
#ifndef CONFIG_USER_ONLY
void helper_tbia(CPUAlphaState *env)
{
tlb_flush(env_cpu(env));
}
void helper_tbis(CPUAlphaState *env, uint64_t p)
{
tlb_flush_page(env_cpu(env), p);
}
void helper_tb_flush(CPUAlphaState *env)
{
tb_flush(env_cpu(env));
}
void helper_halt(uint64_t restart)
{
if (restart) {
qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET);
} else {
qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN);
}
}
uint64_t helper_get_vmtime(void)
{
return qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
}
uint64_t helper_get_walltime(void)
{
return qemu_clock_get_ns(rtc_clock);
}
void helper_set_alarm(CPUAlphaState *env, uint64_t expire)
{
AlphaCPU *cpu = env_archcpu(env);
if (expire) {
env->alarm_expire = expire;
timer_mod(cpu->alarm_timer, expire);
} else {
timer_del(cpu->alarm_timer);
}
}
#endif /* CONFIG_USER_ONLY */