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[46.188.121.115]) by smtp.gmail.com with ESMTPSA id a14sm1547144lfe.7.2016.03.24.14.57.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 24 Mar 2016 14:57:40 -0700 (PDT) From: sergey.fedorov@linaro.org To: qemu-devel@nongnu.org Date: Fri, 25 Mar 2016 00:56:43 +0300 Message-Id: <1458856607-3275-5-git-send-email-sergey.fedorov@linaro.org> X-Mailer: git-send-email 2.7.3 In-Reply-To: <1458856607-3275-1-git-send-email-sergey.fedorov@linaro.org> References: <1458856607-3275-1-git-send-email-sergey.fedorov@linaro.org> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 2a00:1450:4010:c04::22c Cc: Sergey Fedorov , Peter Crosthwaite , Paolo Bonzini , Sergey Fedorov , =?UTF-8?q?Alex=20Benn=C3=A9e?= , Richard Henderson Subject: [Qemu-devel] [PATCH v2 4/8] tcg: Init TB's direct jumps before making it visible X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sergey Fedorov Initialize TB's direct jump list data fields and reset the jumps before tb_link_page() puts it into the physical hash table and the physical page list. So TB is completely initialized before it becomes visible. Signed-off-by: Sergey Fedorov Signed-off-by: Sergey Fedorov --- Notes: Changes in v2: * Tweaked a comment translate-all.c | 27 ++++++++++++++------------- 1 file changed, 14 insertions(+), 13 deletions(-) diff --git a/translate-all.c b/translate-all.c index e54afb89e414..6e4d9de06fa0 100644 --- a/translate-all.c +++ b/translate-all.c @@ -1132,19 +1132,6 @@ static void tb_link_page(TranslationBlock *tb, tb_page_addr_t phys_pc, tb->page_addr[1] = -1; } - assert(((uintptr_t)tb & 3) == 0); - tb->jmp_list_first = (uintptr_t)tb | 2; - tb->jmp_list_next[0] = (uintptr_t)NULL; - tb->jmp_list_next[1] = (uintptr_t)NULL; - - /* init original jump addresses */ - if (tb->jmp_reset_offset[0] != TB_JMP_RESET_OFFSET_INVALID) { - tb_reset_jump(tb, 0); - } - if (tb->jmp_reset_offset[1] != TB_JMP_RESET_OFFSET_INVALID) { - tb_reset_jump(tb, 1); - } - #ifdef DEBUG_TB_CHECK tb_page_check(); #endif @@ -1252,6 +1239,20 @@ TranslationBlock *tb_gen_code(CPUState *cpu, ROUND_UP((uintptr_t)gen_code_buf + gen_code_size + search_size, CODE_GEN_ALIGN); + /* init jump list */ + assert(((uintptr_t)tb & 3) == 0); + tb->jmp_list_first = (uintptr_t)tb | 2; + tb->jmp_list_next[0] = (uintptr_t)NULL; + tb->jmp_list_next[1] = (uintptr_t)NULL; + + /* init original jump addresses wich has been set during tcg_gen_code() */ + if (tb->jmp_reset_offset[0] != TB_JMP_RESET_OFFSET_INVALID) { + tb_reset_jump(tb, 0); + } + if (tb->jmp_reset_offset[1] != TB_JMP_RESET_OFFSET_INVALID) { + tb_reset_jump(tb, 1); + } + /* check next page if needed */ virt_page2 = (pc + tb->size - 1) & TARGET_PAGE_MASK; phys_page2 = -1;