From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36549) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zoqfm-0002n3-IZ for qemu-devel@nongnu.org; Wed, 21 Oct 2015 06:31:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Zoqfh-0008HB-LC for qemu-devel@nongnu.org; Wed, 21 Oct 2015 06:31:10 -0400 Received: from mailout4.w1.samsung.com ([210.118.77.14]:36965) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Zoqfh-0008H5-8g for qemu-devel@nongnu.org; Wed, 21 Oct 2015 06:31:05 -0400 Received: from eucpsbgm2.samsung.com (unknown [203.254.199.245]) by mailout4.w1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0NWK00IEXFVP2300@mailout4.w1.samsung.com> for qemu-devel@nongnu.org; Wed, 21 Oct 2015 11:31:01 +0100 (BST) From: Pavel Fedin References: <1445361732-16257-1-git-send-email-shlomopongratz@gmail.com> <1445361732-16257-10-git-send-email-shlomopongratz@gmail.com> <00a301d10bce$7bc0daa0$73428fe0$@samsung.com> In-reply-to: Date: Wed, 21 Oct 2015 13:30:59 +0300 Message-id: <00f501d10beb$94d12690$be7373b0$@samsung.com> MIME-version: 1.0 Content-type: text/plain; charset=UTF-8 Content-transfer-encoding: 7bit Content-language: ru Subject: Re: [Qemu-devel] [PATCH RFC V5 9/9] hw/arm: Add virt-v3 machine that uses GIC-500 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: 'Shlomo Pongratz' Cc: peter.maydell@linaro.org, eric.auger@linaro.org, 'Shlomo Pongratz' , qemu-devel@nongnu.org, shannon.zhao@linaro.org, ashoks@broadcom.com, imammedo@redhat.com Hello! > I see, just how do I pass the gic version from the command line? Easy. -machine virt,gic-version=3 > GICV3 is accessed by system instructions that exists only in ARCH64. Wrong. In 32-bit mode the CPU sees them as CP15 registers. See "8.5 AArch32 System register descriptions". I would say, system registers are nothing new, these are just renamed CP15 registers, with "CPn" prefix removed. Kind regards, Pavel Fedin Expert Engineer Samsung Electronics Research center Russia