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[Qemu-devel] [PATCH] Refactor flush of per-CPU virtual TB cache
From: |
Lluís |
Subject: |
[Qemu-devel] [PATCH] Refactor flush of per-CPU virtual TB cache |
Date: |
Tue, 19 Oct 2010 21:57:13 +0200 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.0.50 (gnu/linux) |
Signed-off-by: Lluís Vilanova <address@hidden>
---
exec-all.h | 2 ++
exec.c | 9 +++++++--
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/exec-all.h b/exec-all.h
index 3a53fe6..2ae09c5 100644
--- a/exec-all.h
+++ b/exec-all.h
@@ -182,6 +182,8 @@ static inline unsigned int tb_phys_hash_func(tb_page_addr_t
pc)
TranslationBlock *tb_alloc(target_ulong pc);
void tb_free(TranslationBlock *tb);
+/** Flush the per-CPU virtual translation block cache. */
+void tb_flush_jmp_cache(CPUState *env);
void tb_flush(CPUState *env);
void tb_link_page(TranslationBlock *tb,
tb_page_addr_t phys_pc, tb_page_addr_t phys_page2);
diff --git a/exec.c b/exec.c
index 1fbe91c..516960a 100644
--- a/exec.c
+++ b/exec.c
@@ -688,6 +688,11 @@ static void page_flush_tb(void)
}
}
+void tb_flush_jmp_cache (CPUState * env)
+{
+ memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *));
+}
+
/* flush all the translation blocks */
/* XXX: tb_flush is currently not thread safe */
void tb_flush(CPUState *env1)
@@ -705,7 +710,7 @@ void tb_flush(CPUState *env1)
nb_tbs = 0;
for(env = first_cpu; env != NULL; env = env->next_cpu) {
- memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *));
+ tb_flush_jmp_cache(env);
}
memset (tb_phys_hash, 0, CODE_GEN_PHYS_HASH_SIZE * sizeof (void *));
@@ -1941,7 +1946,7 @@ void tlb_flush(CPUState *env, int flush_global)
}
}
- memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *));
+ tb_flush_jmp_cache(env);
env->tlb_flush_addr = -1;
env->tlb_flush_mask = 0;
--
1.7.1
--
"And it's much the same thing with knowledge, for whenever you learn
something new, the whole world becomes that much richer."
-- The Princess of Pure Reason, as told by Norton Juster in The Phantom
Tollbooth
- [Qemu-devel] [PATCH] Refactor flush of per-CPU virtual TB cache,
Lluís <=