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[Qemu-devel] [PATCH 03/17] cpu-exec: remove unnecessary check of cpu->ex
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 03/17] cpu-exec: remove unnecessary check of cpu->exit_request |
Date: |
Mon, 27 Feb 2017 13:45:37 +0100 |
The cpu->exit_request check in cpu_loop_exec_tb is unnecessary,
because cpu->tcg_exit_req is always set after cpu->exit_request.
So let the TB exit and we will pick up the exit request later
in cpu_handle_interrupt.
Signed-off-by: Paolo Bonzini <address@hidden>
---
cpu-exec.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/cpu-exec.c b/cpu-exec.c
index 2a0dfb0..ea1e155 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -571,10 +571,6 @@ static inline void cpu_loop_exec_tb(CPUState *cpu,
TranslationBlock *tb,
uintptr_t ret;
int32_t insns_left;
- if (unlikely(atomic_read(&cpu->exit_request))) {
- return;
- }
-
trace_exec_tb(tb, tb->pc);
ret = cpu_tb_exec(cpu, tb);
tb = (TranslationBlock *)(ret & ~TB_EXIT_MASK);
--
2.9.3
- [Qemu-devel] [PULL v2 00/17] KVM and cpu-exec patches for 2.9 soft freeze, Paolo Bonzini, 2017/02/27
- [Qemu-devel] [PATCH 02/17] replay: check icount in cpu exec loop, Paolo Bonzini, 2017/02/27
- [Qemu-devel] [PATCH 03/17] cpu-exec: remove unnecessary check of cpu->exit_request,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 01/17] cpu-exec: unify icount_decr and tcg_exit_req, Paolo Bonzini, 2017/02/27
- [Qemu-devel] [PATCH 04/17] update-linux-headers: update for 4.11, Paolo Bonzini, 2017/02/27
- [Qemu-devel] [PATCH 06/17] cpus: remove ugly cast on sigbus_handler, Paolo Bonzini, 2017/02/27
- [Qemu-devel] [PATCH 07/17] KVM: x86: cleanup SIGBUS handlers, Paolo Bonzini, 2017/02/27
- [Qemu-devel] [PATCH 08/17] cpus: reorganize signal handling code, Paolo Bonzini, 2017/02/27
- [Qemu-devel] [PATCH 09/17] KVM: remove kvm_arch_on_sigbus, Paolo Bonzini, 2017/02/27
- [Qemu-devel] [PATCH 10/17] KVM: do not use sigtimedwait to catch SIGBUS, Paolo Bonzini, 2017/02/27
- [Qemu-devel] [PATCH 12/17] kvm: use atomic_read/atomic_set to access cpu->exit_request, Paolo Bonzini, 2017/02/27
- [Qemu-devel] [PATCH 11/17] KVM: move SIG_IPI handling to kvm-all.c, Paolo Bonzini, 2017/02/27
- [Qemu-devel] [PATCH 13/17] KVM: use KVM_CAP_IMMEDIATE_EXIT, Paolo Bonzini, 2017/02/27