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[Qemu-devel] [RFC PATCH v6 03/32] icount: set can_do_io outside TB execu
From: |
Pavel Dovgalyuk |
Subject: |
[Qemu-devel] [RFC PATCH v6 03/32] icount: set can_do_io outside TB execution |
Date: |
Mon, 08 Dec 2014 10:53:17 +0300 |
User-agent: |
StGit/0.16 |
This patch sets can_do_io function to allow reading icount
within cpu-exec, but outside TB execution.
Signed-off-by: Pavel Dovgalyuk <address@hidden>
---
cpu-exec.c | 3 +++
cpus.c | 3 +++
2 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/cpu-exec.c b/cpu-exec.c
index f52f292..88675ca 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -168,7 +168,9 @@ static inline tcg_target_ulong cpu_tb_exec(CPUState *cpu,
uint8_t *tb_ptr)
}
#endif /* DEBUG_DISAS */
+ cpu->can_do_io = 0;
next_tb = tcg_qemu_tb_exec(env, tb_ptr);
+ cpu->can_do_io = 1;
trace_exec_tb_exit((void *) (next_tb & ~TB_EXIT_MASK),
next_tb & TB_EXIT_MASK);
@@ -548,6 +550,7 @@ int cpu_exec(CPUArchState *env)
cpu = current_cpu;
env = cpu->env_ptr;
cc = CPU_GET_CLASS(cpu);
+ cpu->can_do_io = 1;
#ifdef TARGET_I386
x86_cpu = X86_CPU(cpu);
#endif
diff --git a/cpus.c b/cpus.c
index 0c33458..7a45a51 100644
--- a/cpus.c
+++ b/cpus.c
@@ -934,6 +934,7 @@ static void *qemu_kvm_cpu_thread_fn(void *arg)
qemu_mutex_lock(&qemu_global_mutex);
qemu_thread_get_self(cpu->thread);
cpu->thread_id = qemu_get_thread_id();
+ cpu->can_do_io = 1;
current_cpu = cpu;
r = kvm_init_vcpu(cpu);
@@ -974,6 +975,7 @@ static void *qemu_dummy_cpu_thread_fn(void *arg)
qemu_mutex_lock_iothread();
qemu_thread_get_self(cpu->thread);
cpu->thread_id = qemu_get_thread_id();
+ cpu->can_do_io = 1;
sigemptyset(&waitset);
sigaddset(&waitset, SIG_IPI);
@@ -1016,6 +1018,7 @@ static void *qemu_tcg_cpu_thread_fn(void *arg)
CPU_FOREACH(cpu) {
cpu->thread_id = qemu_get_thread_id();
cpu->created = true;
+ cpu->can_do_io = 1;
}
qemu_cond_signal(&qemu_cpu_cond);
- [Qemu-devel] [RFC PATCH v6 00/32] Deterministic replay core, Pavel Dovgalyuk, 2014/12/08
- [Qemu-devel] [RFC PATCH v6 01/32] i386: partial revert of interrupt poll fix, Pavel Dovgalyuk, 2014/12/08
- [Qemu-devel] [RFC PATCH v6 02/32] cpu-exec: fix cpu_exec_nocache, Pavel Dovgalyuk, 2014/12/08
- [Qemu-devel] [RFC PATCH v6 03/32] icount: set can_do_io outside TB execution,
Pavel Dovgalyuk <=
- [Qemu-devel] [RFC PATCH v6 04/32] replay: global variables and function stubs, Pavel Dovgalyuk, 2014/12/08
- [Qemu-devel] [RFC PATCH v6 05/32] sysemu: system functions for replay, Pavel Dovgalyuk, 2014/12/08
- [Qemu-devel] [RFC PATCH v6 06/32] replay: internal functions for replay log, Pavel Dovgalyuk, 2014/12/08
- [Qemu-devel] [RFC PATCH v6 07/32] cpu-exec: reset exception_index correctly, Pavel Dovgalyuk, 2014/12/08
- [Qemu-devel] [RFC PATCH v6 08/32] icount: implement icount requesting, Pavel Dovgalyuk, 2014/12/08