[Qemu-devel] [PATCH v10 1/7] exec: [tcg] Refactor flush of per-CPU virtual TB cache

[Lluís Vilanova]

The function is reused in later patches.

Signed-off-by: Lluís Vilanova <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
---
 accel/tcg/cputlb.c        |    2 +-
 accel/tcg/translate-all.c |   15 ++++++++++-----
 include/exec/exec-all.h   |    6 ++++++
 3 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/accel/tcg/cputlb.c b/accel/tcg/cputlb.c
index 743776ae19..6a2b762325 100644
--- a/accel/tcg/cputlb.c
+++ b/accel/tcg/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/accel/tcg/translate-all.c b/accel/tcg/translate-all.c
index f6ad46b613..03820e3aeb 100644
--- a/accel/tcg/translate-all.c
+++ b/accel/tcg/translate-all.c
@@ -928,11 +928,7 @@ 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;
@@ -949,6 +945,15 @@ done:
     tb_unlock();
 }
 
+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);
+    }
+}
+
 void tb_flush(CPUState *cpu)
 {
     if (tcg_enabled()) {
diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h
index 724ec73dce..b0281b000f 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,