From patchwork Thu Nov 14 15:13:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Filip Bozuta X-Patchwork-Id: 1194922 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=rt-rk.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 47DQ9Y4BDmz9sNT for ; Fri, 15 Nov 2019 02:18:41 +1100 (AEDT) Received: from localhost ([::1]:58606 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iVGtK-00087I-Vu for incoming@patchwork.ozlabs.org; Thu, 14 Nov 2019 10:18:39 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:58312) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iVGon-0004Ns-OK for qemu-devel@nongnu.org; Thu, 14 Nov 2019 10:13:58 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iVGol-0007O3-PD for qemu-devel@nongnu.org; Thu, 14 Nov 2019 10:13:57 -0500 Received: from mx2.rt-rk.com ([89.216.37.149]:52154 helo=mail.rt-rk.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1iVGol-0007MN-7u for qemu-devel@nongnu.org; Thu, 14 Nov 2019 10:13:55 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id 63BED1A22B3; Thu, 14 Nov 2019 16:13:50 +0100 (CET) X-Virus-Scanned: amavisd-new at rt-rk.com Received: from rtrkw493-lin.domain.local (rtrkw493-lin.domain.local [10.10.14.93]) by mail.rt-rk.com (Postfix) with ESMTPSA id 383261A22A9; Thu, 14 Nov 2019 16:13:50 +0100 (CET) From: Filip Bozuta To: qemu-devel@nongnu.org Subject: [PATCH v2 for 5.0 1/6] linux-user: Add support for enable/disable RTC features using ioctls Date: Thu, 14 Nov 2019 16:13:37 +0100 Message-Id: <1573744422-9974-2-git-send-email-Filip.Bozuta@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1573744422-9974-1-git-send-email-Filip.Bozuta@rt-rk.com> References: <1573744422-9974-1-git-send-email-Filip.Bozuta@rt-rk.com> MIME-Version: 1.0 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 89.216.37.149 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: laurent@viver.eu, Filip.Bozuta@rt-rk.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" This patch implements functionalities of following ioctls: RTC_AIE_ON, RTC_AIE_OFF - Alarm interrupt enable on/off Enable or disable the alarm interrupt, for RTCs that support alarms. The third ioctl's argument is ignored. RTC_UIE_ON, RTC_UIE_OFF - Update interrupt enable on/off Enable or disable the interrupt on every clock update, for RTCs that support this once-per-second interrupt. The third ioctl's argument is ignored. RTC_PIE_ON, RTC_PIE_OFF - Periodic interrupt enable on/off Enable or disable the periodic interrupt, for RTCs that sup‐ port these periodic interrupts. The third ioctl's argument is ignored. Only a privileged process (i.e., one having the CAP_SYS_RESOURCE capability) can enable the periodic interrupt if the frequency is currently set above the value specified in /proc/sys/dev/rtc/max-user-freq. RTC_WIE_ON, RTC_WIE_OFF - Watchdog interrupt enable on/off Enable or disable the Watchdog interrupt, for RTCs that sup- port this Watchdog interrupt. The third ioctl's argument is ignored. Implementation notes: Since all of involved ioctls have NULL as their third argument, their implementation was straightforward. The line '#include ' was added to recognize preprocessor definitions for these ioctls. This needs to be done only once in this series of commits. Also, the content of this file (with respect to ioctl definitions) remained unchanged for a long time, therefore there is no need to worry about supporting older Linux kernel version. Signed-off-by: Filip Bozuta --- linux-user/ioctls.h | 9 +++++++++ linux-user/syscall.c | 1 + linux-user/syscall_defs.h | 10 ++++++++++ 3 files changed, 20 insertions(+) diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h index c6b9d6a..97741c7 100644 --- a/linux-user/ioctls.h +++ b/linux-user/ioctls.h @@ -69,6 +69,15 @@ IOCTL(KDSETLED, 0, TYPE_INT) IOCTL_SPECIAL(KDSIGACCEPT, 0, do_ioctl_kdsigaccept, TYPE_INT) + IOCTL(RTC_AIE_ON, 0, TYPE_NULL) + IOCTL(RTC_AIE_OFF, 0, TYPE_NULL) + IOCTL(RTC_UIE_ON, 0, TYPE_NULL) + IOCTL(RTC_UIE_OFF, 0, TYPE_NULL) + IOCTL(RTC_PIE_ON, 0, TYPE_NULL) + IOCTL(RTC_PIE_OFF, 0, TYPE_NULL) + IOCTL(RTC_WIE_ON, 0, TYPE_NULL) + IOCTL(RTC_WIE_OFF, 0, TYPE_NULL) + IOCTL(BLKROSET, IOC_W, MK_PTR(TYPE_INT)) IOCTL(BLKROGET, IOC_R, MK_PTR(TYPE_INT)) IOCTL(BLKRRPART, 0, TYPE_NULL) diff --git a/linux-user/syscall.c b/linux-user/syscall.c index ce399a5..74c3c08 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -107,6 +107,7 @@ #include #include #include +#include #include "linux_loop.h" #include "uname.h" diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 98c2119..f91579a 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -763,6 +763,16 @@ struct target_pollfd { #define TARGET_KDSETLED 0x4B32 /* set led state [lights, not flags] */ #define TARGET_KDSIGACCEPT 0x4B4E +/* real time clock ioctls */ +#define TARGET_RTC_AIE_ON TARGET_IO('p', 0x01) +#define TARGET_RTC_AIE_OFF TARGET_IO('p', 0x02) +#define TARGET_RTC_UIE_ON TARGET_IO('p', 0x03) +#define TARGET_RTC_UIE_OFF TARGET_IO('p', 0x04) +#define TARGET_RTC_PIE_ON TARGET_IO('p', 0x05) +#define TARGET_RTC_PIE_OFF TARGET_IO('p', 0x06) +#define TARGET_RTC_WIE_ON TARGET_IO('p', 0x0f) +#define TARGET_RTC_WIE_OFF TARGET_IO('p', 0x10) + #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_SH4) || \ defined(TARGET_XTENSA) #define TARGET_FIOGETOWN TARGET_IOR('f', 123, int)