From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:56492) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZroCr-0000Ya-Tl for qemu-devel@nongnu.org; Thu, 29 Oct 2015 10:29:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZroCo-0000UK-6F for qemu-devel@nongnu.org; Thu, 29 Oct 2015 10:29:33 -0400 Received: from mail-pa0-x233.google.com ([2607:f8b0:400e:c03::233]:34760) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZroCo-0000UD-1i for qemu-devel@nongnu.org; Thu, 29 Oct 2015 10:29:30 -0400 Received: by padhk11 with SMTP id hk11so42642004pad.1 for ; Thu, 29 Oct 2015 07:29:29 -0700 (PDT) From: Shannon Zhao Date: Thu, 29 Oct 2015 22:27:34 +0800 Message-Id: <1446128855-26637-8-git-send-email-shannon.zhao@linaro.org> In-Reply-To: <1446128855-26637-1-git-send-email-shannon.zhao@linaro.org> References: <1446128855-26637-1-git-send-email-shannon.zhao@linaro.org> Subject: [Qemu-devel] [PATCH v2 7/8] hw/arm/virt: Add QEMU powerdown notifier and hook it to GPIO Pin 3 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, peter.maydell@linaro.org, mst@redhat.com, imammedo@redhat.com Cc: zhaoshenglong@huawei.com, peter.huangpeng@huawei.com, shannon.zhao@linaro.org Currently mach-virt model doesn't support powerdown request. Guest VM doesn't react to system_powerdown from monitor console (or QMP) because there is no communication mechanism for such requests. This patch registers GPIO Pin 3 with powerdown notification. So guest VM can receive notification when such powerdown request is triggered. Signed-off-by: Wei Huang Signed-off-by: Shannon Zhao Signed-off-by: Shannon Zhao --- hw/arm/virt.c | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/hw/arm/virt.c b/hw/arm/virt.c index 5c505a4..6f1b9d6 100644 --- a/hw/arm/virt.c +++ b/hw/arm/virt.c @@ -540,6 +540,18 @@ static void create_rtc(const VirtBoardInfo *vbi, qemu_irq *pic) g_free(nodename); } +static DeviceState *pl061_dev; +static void virt_powerdown_req(Notifier *n, void *opaque) +{ + /* use gpio Pin 3 for power button event */ + qemu_set_irq(qdev_get_gpio_in(pl061_dev, 3), 0); + qemu_set_irq(qdev_get_gpio_in(pl061_dev, 3), 1); +} + +static Notifier virt_system_powerdown_notifier = { + .notify = virt_powerdown_req +}; + static void create_gpio(const VirtBoardInfo *vbi, qemu_irq *pic) { char *nodename; @@ -548,7 +560,7 @@ static void create_gpio(const VirtBoardInfo *vbi, qemu_irq *pic) int irq = vbi->irqmap[VIRT_GPIO]; const char compat[] = "arm,pl061\0arm,primecell"; - sysbus_create_simple("pl061", base, pic[irq]); + pl061_dev = sysbus_create_simple("pl061", base, pic[irq]); nodename = g_strdup_printf("/pl061@%" PRIx64, base); qemu_fdt_add_subnode(vbi->fdt, nodename); @@ -563,6 +575,9 @@ static void create_gpio(const VirtBoardInfo *vbi, qemu_irq *pic) qemu_fdt_setprop_cell(vbi->fdt, nodename, "clocks", vbi->clock_phandle); qemu_fdt_setprop_string(vbi->fdt, nodename, "clock-names", "apb_pclk"); + /* connect powerdown request */ + qemu_register_powerdown_notifier(&virt_system_powerdown_notifier); + g_free(nodename); } -- 2.1.0