From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49642) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ccFcA-00022X-3z for qemu-devel@nongnu.org; Fri, 10 Feb 2017 13:08:11 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ccFc8-0003yq-UB for qemu-devel@nongnu.org; Fri, 10 Feb 2017 13:08:10 -0500 Received: from orth.archaic.org.uk ([2001:8b0:1d0::2]:48482) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1ccFc8-0003xp-MH for qemu-devel@nongnu.org; Fri, 10 Feb 2017 13:08:08 -0500 Received: from pm215 by orth.archaic.org.uk with local (Exim 4.84_2) (envelope-from ) id 1ccFc7-0007dR-R6 for qemu-devel@nongnu.org; Fri, 10 Feb 2017 18:08:07 +0000 From: Peter Maydell Date: Fri, 10 Feb 2017 18:07:58 +0000 Message-Id: <1486750082-12324-9-git-send-email-peter.maydell@linaro.org> In-Reply-To: <1486750082-12324-1-git-send-email-peter.maydell@linaro.org> References: <1486750082-12324-1-git-send-email-peter.maydell@linaro.org> Subject: [Qemu-devel] [PULL 08/12] hw/arm/virt: Declare fwcfg as dma cache coherent in dt List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org From: Alexander Graf Fw-cfg recently learned how to directly access guest memory and does so in cache coherent fashion. Tell the guest about that fact when it's using DT. Signed-off-by: Alexander Graf Reviewed-by: Laszlo Ersek Reviewed-by: Ard Biesheuvel Reviewed-by: Shannon Zhao Message-id: 1486644810-33181-5-git-send-email-agraf@suse.de Signed-off-by: Peter Maydell --- hw/arm/virt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index d20e627..f3440f2 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -929,6 +929,7 @@ static FWCfgState *create_fw_cfg(const VirtMachineState *vms, AddressSpace *as) "compatible", "qemu,fw-cfg-mmio"); qemu_fdt_setprop_sized_cells(vms->fdt, nodename, "reg", 2, base, 2, size); + qemu_fdt_setprop(vms->fdt, nodename, "dma-coherent", NULL, 0); g_free(nodename); return fw_cfg; } -- 2.7.4