From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:43064) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z4ZU2-0001NF-Tb for qemu-devel@nongnu.org; Mon, 15 Jun 2015 14:51:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z4ZU1-000544-65 for qemu-devel@nongnu.org; Mon, 15 Jun 2015 14:51:46 -0400 Received: from mnementh.archaic.org.uk ([2001:8b0:1d0::1]:34479) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z4ZU0-00053l-V4 for qemu-devel@nongnu.org; Mon, 15 Jun 2015 14:51:45 -0400 From: Peter Maydell Date: Mon, 15 Jun 2015 19:49:48 +0100 Message-Id: <1434394190-13837-1-git-send-email-peter.maydell@linaro.org> Subject: [Qemu-devel] [PATCH 0/2] Implement YIELD to yield in ARM and Thumb translators List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: =?UTF-8?q?Alex=20Z=C3=BCpke?= , patches@linaro.org This patchset makes the ARM and Thumb encodings of the YIELD hint instruction in the ARM cause the TCG CPU to yield control back to the top level loop. This brings them into line with the A64 encoding which already did this. Patch 1 splits out DISAS_YIELD from DISAS_WFE, because although we currently implement them both the same way they're semantically different, and in future we might well make WFE do something else. (In particular when I was reviewing Greg's patches that proposed enabling trap-to-EL2-on-WFE I didn't notice that we would also have ended up trapping on YIELD !) Peter Maydell (2): target-arm: Split DISAS_YIELD from DISAS_WFE target-arm: Implement YIELD insn to yield in ARM and Thumb translators target-arm/helper.h | 1 + target-arm/op_helper.c | 12 ++++++++++++ target-arm/translate-a64.c | 6 ++++++ target-arm/translate.c | 7 +++++++ target-arm/translate.h | 1 + 5 files changed, 27 insertions(+) -- 1.9.1