From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52385) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d5WX5-0008IE-8g for qemu-devel@nongnu.org; Tue, 02 May 2017 08:04:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1d5WX0-0004Go-D6 for qemu-devel@nongnu.org; Tue, 02 May 2017 08:03:55 -0400 Received: from mail.ispras.ru ([83.149.199.45]:59192) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1d5WX0-0004Fk-5e for qemu-devel@nongnu.org; Tue, 02 May 2017 08:03:50 -0400 From: Pavel Dovgalyuk Date: Tue, 02 May 2017 15:03:50 +0300 Message-ID: <20170502120350.3368.92338.stgit@PASHA-ISP> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [PATCH] mips: set CP0 Debug DExcCode for SDBBP instruction List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: yongbok.kim@imgtec.com, dovgaluk@ispras.ru, aurelien@aurel32.net From: Pavel Dovgalyuk This patch fixes setting DExcCode field of CP0 Debug register when SDBBP instruction is executed. According to EJTAG specification, this field must be set to the value 9 (Bp). Signed-off-by: Pavel Dovgalyuk --- target/mips/helper.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/target/mips/helper.c b/target/mips/helper.c index e359ca3b44..166f0d1243 100644 --- a/target/mips/helper.c +++ b/target/mips/helper.c @@ -627,6 +627,8 @@ void mips_cpu_do_interrupt(CPUState *cs) goto set_DEPC; case EXCP_DBp: env->CP0_Debug |= 1 << CP0DB_DBp; + /* Setup DExcCode - SDBBP instruction */ + env->CP0_Debug = (env->CP0_Debug & ~(0x1fULL << CP0DB_DEC)) | 9 << CP0DB_DEC; goto set_DEPC; case EXCP_DDBS: env->CP0_Debug |= 1 << CP0DB_DDBS;