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[Qemu-devel] [PATCH v8 1/7] exec: [tcg] Refactor flush of per-CPU virtua
From: |
Emilio G. Cota |
Subject: |
[Qemu-devel] [PATCH v8 1/7] exec: [tcg] Refactor flush of per-CPU virtual TB cache |
Date: |
Thu, 8 Jun 2017 22:25:16 -0400 |
From: Lluís Vilanova <address@hidden>
The function is reused in later patches.
Signed-off-by: Lluís Vilanova <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
Signed-off-by: Emilio G. Cota <address@hidden>
---
cputlb.c | 2 +-
include/exec/exec-all.h | 6 ++++++
translate-all.c | 15 ++++++++++-----
3 files changed, 17 insertions(+), 6 deletions(-)
diff --git a/cputlb.c b/cputlb.c
index 743776a..6a2b762 100644
--- a/cputlb.c
+++ b/cputlb.c
@@ -118,7 +118,7 @@ static void tlb_flush_nocheck(CPUState *cpu)
memset(env->tlb_table, -1, sizeof(env->tlb_table));
memset(env->tlb_v_table, -1, sizeof(env->tlb_v_table));
- memset(cpu->tb_jmp_cache, 0, sizeof(cpu->tb_jmp_cache));
+ tb_flush_jmp_cache_all(cpu);
env->vtlb_index = 0;
env->tlb_flush_addr = -1;
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index 724ec73..b0281b0 100644
--- a/include/exec/exec-all.h
+++ b/include/exec/exec-all.h
@@ -366,6 +366,12 @@ struct TranslationBlock {
};
void tb_free(TranslationBlock *tb);
+/**
+ * tb_flush_jmp_cache_all:
+ *
+ * Flush the virtual translation block cache.
+ */
+void tb_flush_jmp_cache_all(CPUState *env);
void tb_flush(CPUState *cpu);
void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr);
TranslationBlock *tb_htable_lookup(CPUState *cpu, target_ulong pc,
diff --git a/translate-all.c b/translate-all.c
index 966747a..8a5dc19 100644
--- a/translate-all.c
+++ b/translate-all.c
@@ -931,11 +931,7 @@ static void do_tb_flush(CPUState *cpu, run_on_cpu_data
tb_flush_count)
}
CPU_FOREACH(cpu) {
- int i;
-
- for (i = 0; i < TB_JMP_CACHE_SIZE; ++i) {
- atomic_set(&cpu->tb_jmp_cache[i], NULL);
- }
+ tb_flush_jmp_cache_all(cpu);
}
tcg_ctx.tb_ctx.nb_tbs = 0;
@@ -1733,6 +1729,15 @@ void tb_check_watchpoint(CPUState *cpu)
}
}
+void tb_flush_jmp_cache_all(CPUState *cpu)
+{
+ int i;
+
+ for (i = 0; i < TB_JMP_CACHE_SIZE; ++i) {
+ atomic_set(&cpu->tb_jmp_cache[i], NULL);
+ }
+}
+
#ifndef CONFIG_USER_ONLY
/* in deterministic execution mode, instructions doing device I/Os
* must be at the end of the TB.
--
2.7.4
- [Qemu-devel] [PATCH v8 0/7] trace: [tcg] Optimize per-vCPU tracing states, Emilio G. Cota, 2017/06/08
- [Qemu-devel] [PATCH v8 7/7] trace: [trivial] Statically enable all guest events, Emilio G. Cota, 2017/06/08
- [Qemu-devel] [PATCH v8 3/7] trace: [tcg] Delay changes to dynamic state when translating, Emilio G. Cota, 2017/06/08
- [Qemu-devel] [PATCH v8 2/7] cpu: allocate cpu->trace_dstate in place, Emilio G. Cota, 2017/06/08
- [Qemu-devel] [PATCH v8 4/7] exec: [tcg] Use different TBs according to the vCPU's dynamic tracing state, Emilio G. Cota, 2017/06/08
- [Qemu-devel] [PATCH v8 6/7] trace: [tcg, trivial] Re-align generated code, Emilio G. Cota, 2017/06/08
- [Qemu-devel] [PATCH v8 5/7] trace: [tcg] Do not generate TCG code to trace dinamically-disabled events, Emilio G. Cota, 2017/06/08
- [Qemu-devel] [PATCH v8 1/7] exec: [tcg] Refactor flush of per-CPU virtual TB cache,
Emilio G. Cota <=