From nobody Mon Feb 9 03:29:13 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1579115671; cv=none; d=zohomail.com; s=zohoarc; b=Z8AfVqmxp8wQYN3FFEJEAN4lQUqJ6mAf35GcTzdNIYegUcmUd5KTCccveoHAgfKf/IO1nTs/YLI0jANWkN0+gkcQhwKhKmB4SLB8LNlUTnHqyAL7I94fEMSi0e6Q7q8/nyUxr/rM8eNnFGni90vNgr8wHesLtNRsJdEJcYHErsI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1579115671; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=l+k9fv0jD8xX/mFNLMRxnggeFzqgCjtImnb31HSGqMQ=; b=kqkcaTVt6J7qxA+GK96S0MI8kQMV1hIk9al6CQEzH7m2QoIMMIpKuXruTNE3ayTy/qCeleZork3j+Z6nQQyIsVRh0gXW3EU/ErtRCM8KLi49q84lT7JpIGSiha+TChjfrze9i+mrC6gg2Aq5F1xauDzEx9CcTLrabI2B6RM/Zbg= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1579115671460785.542397954224; Wed, 15 Jan 2020 11:14:31 -0800 (PST) Received: from localhost ([::1]:59216 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iro7Z-0000TY-L6 for importer@patchew.org; Wed, 15 Jan 2020 14:14:29 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:34155) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iro5S-0006tn-H6 for qemu-devel@nongnu.org; Wed, 15 Jan 2020 14:12:20 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iro5O-0002qO-JJ for qemu-devel@nongnu.org; Wed, 15 Jan 2020 14:12:18 -0500 Received: from mx2.rt-rk.com ([89.216.37.149]:53778 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 1iro5O-0002o3-90 for qemu-devel@nongnu.org; Wed, 15 Jan 2020 14:12:14 -0500 Received: from localhost (localhost [127.0.0.1]) by mail.rt-rk.com (Postfix) with ESMTP id EAD261A21DB; Wed, 15 Jan 2020 20:12:09 +0100 (CET) Received: from rtrkw493-lin.domain.local (rtrkw493-lin.domain.local [10.10.14.93]) by mail.rt-rk.com (Postfix) with ESMTPSA id ADBDD1A21B7; Wed, 15 Jan 2020 20:12:09 +0100 (CET) X-Virus-Scanned: amavisd-new at rt-rk.com From: Filip Bozuta To: qemu-devel@nongnu.org Subject: [PATCH v7 02/13] linux-user: Add support for getting/setting RTC time and alarm using ioctls Date: Wed, 15 Jan 2020 20:11:52 +0100 Message-Id: <1579115523-4159-3-git-send-email-Filip.Bozuta@rt-rk.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1579115523-4159-1-git-send-email-Filip.Bozuta@rt-rk.com> References: <1579115523-4159-1-git-send-email-Filip.Bozuta@rt-rk.com> 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: peter.maydell@linaro.org, berrange@redhat.com, arnd@arndb.de, richard.henderson@linaro.org, laurent@vivier.eu, jcmvbkbc@gmail.com, amarkovic@wavecomp.com, philmd@redhat.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" This patch implements functionalities of following ioctls: RTC_RD_TIME - Getting RTC time Returns this RTC's time in the following structure: struct rtc_time { int tm_sec; int tm_min; int tm_hour; int tm_mday; int tm_mon; int tm_year; int tm_wday; /* unused */ int tm_yday; /* unused */ int tm_isdst; /* unused */ }; The fields in this structure have the same meaning and ranges as the tm structure described in gmtime man page. A pointer to this structure should be passed as the third ioctl's argument. RTC_SET_TIME - Setting RTC time Sets this RTC's time to the time specified by the rtc_time structure pointed to by the third ioctl's argument. To set the RTC's time the process must be privileged (i.e., have the CAP_SYS_TIME capability). RTC_ALM_READ, RTC_ALM_SET - Getting/Setting alarm time Read and set the alarm time, for RTCs that support alarms. The alarm interrupt must be separately enabled or disabled using the RTC_AIE_ON, RTC_AIE_OFF requests. The third ioctl's argument is a pointer to a rtc_time structure. Only the tm_sec, tm_min, and tm_hour fields of this structure are used. Implementation notes: All ioctls in this patch have pointer to a structure rtc_time as their third argument. That is the reason why corresponding definition is added in linux-user/syscall_types.h. Since all elements of this structure are of type 'int', the rest of the implementation is straightforward. Signed-off-by: Filip Bozuta --- linux-user/ioctls.h | 4 ++++ linux-user/syscall_defs.h | 4 ++++ linux-user/syscall_types.h | 11 +++++++++++ 3 files changed, 19 insertions(+) diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h index 97741c7..f472794 100644 --- a/linux-user/ioctls.h +++ b/linux-user/ioctls.h @@ -77,6 +77,10 @@ IOCTL(RTC_PIE_OFF, 0, TYPE_NULL) IOCTL(RTC_WIE_ON, 0, TYPE_NULL) IOCTL(RTC_WIE_OFF, 0, TYPE_NULL) + IOCTL(RTC_ALM_READ, IOC_R, MK_PTR(MK_STRUCT(STRUCT_rtc_time))) + IOCTL(RTC_ALM_SET, IOC_W, MK_PTR(MK_STRUCT(STRUCT_rtc_time))) + IOCTL(RTC_RD_TIME, IOC_R, MK_PTR(MK_STRUCT(STRUCT_rtc_time))) + IOCTL(RTC_SET_TIME, IOC_W, MK_PTR(MK_STRUCT(STRUCT_rtc_time))) =20 IOCTL(BLKROSET, IOC_W, MK_PTR(TYPE_INT)) IOCTL(BLKROGET, IOC_R, MK_PTR(TYPE_INT)) diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index f91579a..f0bf09d 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -772,6 +772,10 @@ struct target_pollfd { #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) +#define TARGET_RTC_ALM_READ TARGET_IOR('p', 0x08, struct rtc_time) +#define TARGET_RTC_ALM_SET TARGET_IOW('p', 0x07, struct rtc_time) +#define TARGET_RTC_RD_TIME TARGET_IOR('p', 0x09, struct rtc_time) +#define TARGET_RTC_SET_TIME TARGET_IOW('p', 0x0a, struct rtc_time) =20 #if defined(TARGET_ALPHA) || defined(TARGET_MIPS) || defined(TARGET_SH4) |= | \ defined(TARGET_XTENSA) diff --git a/linux-user/syscall_types.h b/linux-user/syscall_types.h index 4e36983..a35072a 100644 --- a/linux-user/syscall_types.h +++ b/linux-user/syscall_types.h @@ -255,6 +255,17 @@ STRUCT(blkpg_partition, MK_ARRAY(TYPE_CHAR, BLKPG_DEVNAMELTH), /* devname */ MK_ARRAY(TYPE_CHAR, BLKPG_VOLNAMELTH)) /* volname */ =20 +STRUCT(rtc_time, + TYPE_INT, /* tm_sec */ + TYPE_INT, /* tm_min */ + TYPE_INT, /* tm_hour */ + TYPE_INT, /* tm_mday */ + TYPE_INT, /* tm_mon */ + TYPE_INT, /* tm_year */ + TYPE_INT, /* tm_wday */ + TYPE_INT, /* tm_yday */ + TYPE_INT) /* tm_isdst */ + STRUCT(blkpg_ioctl_arg, TYPE_INT, /* op */ TYPE_INT, /* flags */ --=20 2.7.4