From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39906) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZOozp-000752-3D for qemu-devel@nongnu.org; Mon, 10 Aug 2015 11:28:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZOozn-00008P-95 for qemu-devel@nongnu.org; Mon, 10 Aug 2015 11:28:16 -0400 Received: from greensocs.com ([193.104.36.180]:59350) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZOozn-00008D-37 for qemu-devel@nongnu.org; Mon, 10 Aug 2015 11:28:15 -0400 From: fred.konrad@greensocs.com Date: Mon, 10 Aug 2015 17:27:14 +0200 Message-Id: <1439220437-23957-17-git-send-email-fred.konrad@greensocs.com> In-Reply-To: <1439220437-23957-1-git-send-email-fred.konrad@greensocs.com> References: <1439220437-23957-1-git-send-email-fred.konrad@greensocs.com> Subject: [Qemu-devel] [RFC PATCH V7 16/19] translate-all: introduces tb_flush_safe. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, mttcg@listserver.greensocs.com Cc: mark.burton@greensocs.com, a.rigo@virtualopensystems.com, guillaume.delbergue@greensocs.com, pbonzini@redhat.com, alex.bennee@linaro.org, fred.konrad@greensocs.com From: KONRAD Frederic tb_flush is not thread safe we definitely need to exit VCPUs to do that. This introduces tb_flush_safe which just creates an async safe work which will do a tb_flush later. Signed-off-by: KONRAD Frederic --- include/exec/exec-all.h | 1 + translate-all.c | 15 +++++++++++++++ 2 files changed, 16 insertions(+) diff --git a/include/exec/exec-all.h b/include/exec/exec-all.h index e9512df..246df68 100644 --- a/include/exec/exec-all.h +++ b/include/exec/exec-all.h @@ -200,6 +200,7 @@ struct TBContext { void tb_free(TranslationBlock *tb); void tb_flush(CPUState *cpu); +void tb_flush_safe(CPUState *cpu); void tb_phys_invalidate(TranslationBlock *tb, tb_page_addr_t page_addr); #if defined(USE_DIRECT_JUMP) diff --git a/translate-all.c b/translate-all.c index fc5162a..7094bf0 100644 --- a/translate-all.c +++ b/translate-all.c @@ -818,6 +818,21 @@ static void page_flush_tb(void) } } +static void tb_flush_work(void *opaque) +{ + CPUState *cpu = opaque; + tb_flush(cpu); +} + +void tb_flush_safe(CPUState *cpu) +{ +#if 0 /* !MTTCG */ + tb_flush(cpu); +#else + async_run_safe_work_on_cpu(cpu, tb_flush_work, cpu); +#endif /* MTTCG */ +} + /* flush all the translation blocks */ /* XXX: tb_flush is currently not thread safe */ void tb_flush(CPUState *cpu) -- 1.9.0