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authorYang Zhong <yang.zhong@intel.com>2017-06-02 14:06:44 +0800
committerPaolo Bonzini <pbonzini@redhat.com>2017-06-15 11:04:06 +0200
commitd9bb58e51068dfc48746c6af0179926c8dc05bce (patch)
treebd0c3683d7acdf7b2f67ac38b7d7571dbd103694 /cpu-exec-common.c
parenta9ded6017ea39ea845fb1acf5187528bd74acb04 (diff)
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tcg: move tcg related files into accel/tcg/ subdirectory
move cputlb.c, cpu-exec-common.c and cpu-exec.c related tcg exec file into accel/tcg/ subdirectory. Signed-off-by: Yang Zhong <yang.zhong@intel.com> Message-Id: <1496383606-18060-3-git-send-email-yang.zhong@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'cpu-exec-common.c')
-rw-r--r--cpu-exec-common.c82
1 files changed, 0 insertions, 82 deletions
diff --git a/cpu-exec-common.c b/cpu-exec-common.c
deleted file mode 100644
index e81da27..0000000
--- a/cpu-exec-common.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * emulator main execution loop
- *
- * Copyright (c) 2003-2005 Fabrice Bellard
- *
- * 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 "sysemu/cpus.h"
-#include "exec/exec-all.h"
-#include "exec/memory-internal.h"
-
-/* exit the current TB, but without causing any exception to be raised */
-void cpu_loop_exit_noexc(CPUState *cpu)
-{
- /* XXX: restore cpu registers saved in host registers */
-
- cpu->exception_index = -1;
- siglongjmp(cpu->jmp_env, 1);
-}
-
-#if defined(CONFIG_SOFTMMU)
-void cpu_reloading_memory_map(void)
-{
- if (qemu_in_vcpu_thread() && current_cpu->running) {
- /* The guest can in theory prolong the RCU critical section as long
- * as it feels like. The major problem with this is that because it
- * can do multiple reconfigurations of the memory map within the
- * critical section, we could potentially accumulate an unbounded
- * collection of memory data structures awaiting reclamation.
- *
- * Because the only thing we're currently protecting with RCU is the
- * memory data structures, it's sufficient to break the critical section
- * in this callback, which we know will get called every time the
- * memory map is rearranged.
- *
- * (If we add anything else in the system that uses RCU to protect
- * its data structures, we will need to implement some other mechanism
- * to force TCG CPUs to exit the critical section, at which point this
- * part of this callback might become unnecessary.)
- *
- * This pair matches cpu_exec's rcu_read_lock()/rcu_read_unlock(), which
- * only protects cpu->as->dispatch. Since we know our caller is about
- * to reload it, it's safe to split the critical section.
- */
- rcu_read_unlock();
- rcu_read_lock();
- }
-}
-#endif
-
-void cpu_loop_exit(CPUState *cpu)
-{
- siglongjmp(cpu->jmp_env, 1);
-}
-
-void cpu_loop_exit_restore(CPUState *cpu, uintptr_t pc)
-{
- if (pc) {
- cpu_restore_state(cpu, pc);
- }
- siglongjmp(cpu->jmp_env, 1);
-}
-
-void cpu_loop_exit_atomic(CPUState *cpu, uintptr_t pc)
-{
- cpu->exception_index = EXCP_ATOMIC;
- cpu_loop_exit_restore(cpu, pc);
-}