From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60887) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gX5FB-0003sU-Il for qemu-devel@nongnu.org; Wed, 12 Dec 2018 09:12:14 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gX5F7-0007Se-9d for qemu-devel@nongnu.org; Wed, 12 Dec 2018 09:12:09 -0500 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:43506) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gX5F5-0007GH-A6 for qemu-devel@nongnu.org; Wed, 12 Dec 2018 09:12:04 -0500 Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.22/8.16.0.22) with SMTP id wBCE9R00086059 for ; Wed, 12 Dec 2018 09:11:47 -0500 Received: from e36.co.us.ibm.com (e36.co.us.ibm.com [32.97.110.154]) by mx0a-001b2d01.pphosted.com with ESMTP id 2pb2x7b0nx-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Wed, 12 Dec 2018 09:11:47 -0500 Received: from localhost by e36.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 12 Dec 2018 14:11:47 -0000 From: "Jason J. Herne" Date: Wed, 12 Dec 2018 09:11:17 -0500 In-Reply-To: <1544623878-11248-1-git-send-email-jjherne@linux.ibm.com> References: <1544623878-11248-1-git-send-email-jjherne@linux.ibm.com> Message-Id: <1544623878-11248-15-git-send-email-jjherne@linux.ibm.com> Subject: [Qemu-devel] [PATCH 14/15] s390-bios: Add channel command codes/structs needed for dasd-ipl List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org, qemu-s390x@nongnu.org, cohuck@redhat.com, pasic@linux.ibm.com, bjsdjshi@linux.ibm.com, borntraeger@de.ibm.com The dasd IPL procedure needs to execute a few previously unused channel commands. Let's define them and their associated data structures. Signed-off-by: Jason J. Herne --- pc-bios/s390-ccw/cio.h | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/pc-bios/s390-ccw/cio.h b/pc-bios/s390-ccw/cio.h index 5c16635..3300295 100644 --- a/pc-bios/s390-ccw/cio.h +++ b/pc-bios/s390-ccw/cio.h @@ -200,11 +200,14 @@ typedef struct ccw1 { #define CCW_FLAG_IDA 0x04 #define CCW_FLAG_SUSPEND 0x02 +/* Common CCW commands */ +#define CCW_CMD_READ_IPL 0x02 #define CCW_CMD_NOOP 0x03 #define CCW_CMD_BASIC_SENSE 0x04 #define CCW_CMD_TIC 0x08 #define CCW_CMD_SENSE_ID 0xe4 +/* Virtio CCW commands */ #define CCW_CMD_SET_VQ 0x13 #define CCW_CMD_VDEV_RESET 0x33 #define CCW_CMD_READ_FEAT 0x12 @@ -216,6 +219,12 @@ typedef struct ccw1 { #define CCW_CMD_SET_CONF_IND 0x53 #define CCW_CMD_READ_VQ_CONF 0x32 +/* DASD CCW commands */ +#define CCW_CMD_DASD_READ 0x06 +#define CCW_CMD_DASD_SEEK 0x07 +#define CCW_CMD_DASD_SEARCH_ID_EQ 0x31 +#define CCW_CMD_DASD_READ_MT 0x86 + /* * Command-mode operation request block */ @@ -328,6 +337,20 @@ typedef struct irb { __u32 emw[8]; } __attribute__ ((packed, aligned(4))) Irb; +/* Used for SEEK ccw commands */ +typedef struct CcwSeekData { + uint16_t reserved; + uint16_t cyl; + uint16_t head; +} __attribute__((packed)) CcwSeekData; + +/* Used for SEARCH ID ccw commands */ +typedef struct CcwSearchIdData { + uint16_t cyl; + uint16_t head; + uint8_t record; +} __attribute__((packed)) CcwSearchIdData; + int enable_mss_facility(void); void enable_subchannel(SubChannelId schid); uint16_t cu_type(SubChannelId schid); -- 2.7.4