From nobody Sun Nov 24 01:00:19 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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; dmarc=pass(p=reject dis=none) header.from=linux.ibm.com ARC-Seal: i=1; a=rsa-sha256; t=1728350335; cv=none; d=zohomail.com; s=zohoarc; b=KUOVs3bZ9oNEVkiQzMKz4cFNEB1pFNU+9P42FxftTxx4QNTMkIorrIrRYGN4iM+YmwENPBE2ma52VHih8bxjR0zhokA/2wV+Nus74sE/X/7dyvUX/SGXyJ4jBSkAubQVRrO2MfoG/QMPlqfD+mf0BjkxrwLVFKi7HdPpyk8+ARo= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1728350335; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=qvbKGfft7U2kO/sOU+7bLGIa+fNsHtYsZyugYA+8ddo=; b=a9DEiEB/RBwii3lrXAbz1Fl//JSQGnvbNDuBC0AZOi6WtA6+PxrBPp3eRICoKZBdGYHdSlyCFgoWDNRLJVV7MOcQeQvbXk0MR1WFC5fGypmw+4lfKdkx7w8KTnkHrT3IIIxSzJKXSgGueG8YG5xP7bNjFIrTP+9d+PjWOCrBQqw= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; 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; dmarc=pass header.from= (p=reject dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1728350335113685.2142404809358; Mon, 7 Oct 2024 18:18:55 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sxyq6-0004GF-1l; Mon, 07 Oct 2024 21:16:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sxypt-00049e-5C; Mon, 07 Oct 2024 21:16:25 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sxypp-0008M2-Jo; Mon, 07 Oct 2024 21:16:23 -0400 Received: from pps.filterd (m0360083.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 4980Odsf001808; Tue, 8 Oct 2024 01:16:20 GMT Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 424t5tg5e1-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 08 Oct 2024 01:16:19 +0000 (GMT) Received: from m0360083.ppops.net (m0360083.ppops.net [127.0.0.1]) by pps.reinject (8.18.0.8/8.18.0.8) with ESMTP id 4981GJtf001027; Tue, 8 Oct 2024 01:16:19 GMT Received: from ppma12.dal12v.mail.ibm.com (dc.9e.1632.ip4.static.sl-reverse.com [50.22.158.220]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 424t5tg5dx-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 08 Oct 2024 01:16:19 +0000 (GMT) Received: from pps.filterd (ppma12.dal12v.mail.ibm.com [127.0.0.1]) by ppma12.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 4980vB4Q013838; Tue, 8 Oct 2024 01:16:18 GMT Received: from smtprelay02.wdc07v.mail.ibm.com ([172.16.1.69]) by ppma12.dal12v.mail.ibm.com (PPS) with ESMTPS id 423fss1r41-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 08 Oct 2024 01:16:18 +0000 Received: from smtpav06.dal12v.mail.ibm.com (smtpav06.dal12v.mail.ibm.com [10.241.53.105]) by smtprelay02.wdc07v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 4981GGOY28836368 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 8 Oct 2024 01:16:17 GMT Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9833B58059; Tue, 8 Oct 2024 01:16:16 +0000 (GMT) Received: from smtpav06.dal12v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 24AFF5805D; Tue, 8 Oct 2024 01:16:16 +0000 (GMT) Received: from localhost.localdomain (unknown [9.61.51.58]) by smtpav06.dal12v.mail.ibm.com (Postfix) with ESMTP; Tue, 8 Oct 2024 01:16:16 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from :to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=pp1; bh=qvbKGfft7U2kO /sOU+7bLGIa+fNsHtYsZyugYA+8ddo=; b=nqtH/cFLwRz6uioETL0NFOd2vHF1p TALldOqUVj5IvlH/ScPC7RzBnlzAtwDnsyB4G3dAArx75OLKyb75S8NqkrxXlWvB PeBy2S0suGJmrH1P/tlTEk/H90adVmtEyYXkYA2y0u50X9H7z8rFI2xb3lHmSPKS tqTu1CslabOR4WtErM3PHV72P8E9cu93NlXUl96R/HuzIelyx+dFnmopbe1OGIUl CncJltaurzrWsWeHXl0yDQJ0jIfenwwtV89etmMu2aA5EzxWDc7QYr8+X7ZB4Y/A TGJ1+B6A6GetHUJw746+s/YE5Io+E3lkmlzsa1b1JmYTwBuVleOf+jSFg== From: jrossi@linux.ibm.com To: qemu-devel@nongnu.org, qemu-s390x@nongnu.org, thuth@redhat.com Cc: frankja@linux.ibm.com, jrossi@linux.ibm.com Subject: [PATCH v3 15/19] hw/s390x: Build an IPLB for each boot device Date: Mon, 7 Oct 2024 21:15:48 -0400 Message-ID: <20241008011552.2645520-16-jrossi@linux.ibm.com> X-Mailer: git-send-email 2.43.5 In-Reply-To: <20241008011552.2645520-1-jrossi@linux.ibm.com> References: <20241008011552.2645520-1-jrossi@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: aNsOIutThkVku3wvQAsMJm-G_fsLBh0N X-Proofpoint-GUID: l4w2JUqHlmPbPgedcJAnEoCaFs0rfcxu X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1051,Hydra:6.0.680,FMLib:17.12.62.30 definitions=2024-10-07_16,2024-10-07_01,2024-09-30_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 bulkscore=0 priorityscore=1501 mlxscore=0 lowpriorityscore=0 clxscore=1015 mlxlogscore=999 adultscore=0 spamscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410080006 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; Received-SPF: pass client-ip=148.163.156.1; envelope-from=jrossi@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @ibm.com) X-ZM-MESSAGEID: 1728350336579116600 Content-Type: text/plain; charset="utf-8" From: Jared Rossi Build an IPLB for any device with a bootindex (up to a maximum of 8 devices= ). The IPLB chain is placed immediately before the BIOS in memory. Because this is not a fixed address, the location of the next IPLB and number of remaini= ng boot devices is stored in the QIPL global variable for possible later acces= s by the guest during IPL. Signed-off-by: Jared Rossi Reviewed-by: Thomas Huth --- hw/s390x/ipl.h | 1 + include/hw/s390x/ipl/qipl.h | 4 +- hw/s390x/ipl.c | 123 ++++++++++++++++++++++++++++-------- 3 files changed, 99 insertions(+), 29 deletions(-) diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h index b670bad551..54eb48fd6e 100644 --- a/hw/s390x/ipl.h +++ b/hw/s390x/ipl.h @@ -20,6 +20,7 @@ #include "qom/object.h" =20 #define DIAG308_FLAGS_LP_VALID 0x80 +#define MAX_BOOT_DEVS 8 /* Max number of devices that may have a bootindex= */ =20 void s390_ipl_convert_loadparm(char *ascii_lp, uint8_t *ebcdic_lp); void s390_ipl_fmt_loadparm(uint8_t *loadparm, char *str, Error **errp); diff --git a/include/hw/s390x/ipl/qipl.h b/include/hw/s390x/ipl/qipl.h index 0ef04af027..e56b181298 100644 --- a/include/hw/s390x/ipl/qipl.h +++ b/include/hw/s390x/ipl/qipl.h @@ -31,7 +31,9 @@ struct QemuIplParameters { uint8_t reserved1[3]; uint64_t reserved2; uint32_t boot_menu_timeout; - uint8_t reserved3[12]; + uint8_t reserved3[2]; + uint16_t chain_len; + uint64_t next_iplb; } QEMU_PACKED; typedef struct QemuIplParameters QemuIplParameters; =20 diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c index 55a83bb836..aec79f41a8 100644 --- a/hw/s390x/ipl.c +++ b/hw/s390x/ipl.c @@ -56,6 +56,13 @@ static bool iplb_extended_needed(void *opaque) return ipl->iplbext_migration; } =20 +/* Place the IPLB chain immediately before the BIOS in memory */ +static uint64_t find_iplb_chain_addr(uint64_t bios_addr, uint16_t count) +{ + return (bios_addr & TARGET_PAGE_MASK) + - (count * sizeof(IplParameterBlock)); +} + static const VMStateDescription vmstate_iplb_extended =3D { .name =3D "ipl/iplb_extended", .version_id =3D 0, @@ -398,6 +405,17 @@ static CcwDevice *s390_get_ccw_device(DeviceState *dev= _st, int *devtype) return ccw_dev; } =20 +static uint64_t s390_ipl_map_iplb_chain(IplParameterBlock *iplb_chain) +{ + S390IPLState *ipl =3D get_ipl_device(); + uint16_t count =3D ipl->qipl.chain_len; + uint64_t len =3D sizeof(IplParameterBlock) * count; + uint64_t chain_addr =3D find_iplb_chain_addr(ipl->bios_start_addr, cou= nt); + + cpu_physical_memory_write(chain_addr, iplb_chain, len); + return chain_addr; +} + void s390_ipl_fmt_loadparm(uint8_t *loadparm, char *str, Error **errp) { int i; @@ -428,54 +446,51 @@ void s390_ipl_convert_loadparm(char *ascii_lp, uint8_= t *ebcdic_lp) } } =20 -static bool s390_gen_initial_iplb(S390IPLState *ipl) +static bool s390_build_iplb(DeviceState *dev_st, IplParameterBlock *iplb) { - DeviceState *dev_st; + S390IPLState *ipl =3D get_ipl_device(); CcwDevice *ccw_dev =3D NULL; SCSIDevice *sd; int devtype; uint8_t *lp; =20 - dev_st =3D get_boot_device(0); - if (dev_st) { - ccw_dev =3D s390_get_ccw_device(dev_st, &devtype); - } - /* * Currently allow IPL only from CCW devices. */ + ccw_dev =3D s390_get_ccw_device(dev_st, &devtype); if (ccw_dev) { lp =3D ccw_dev->loadparm; =20 switch (devtype) { case CCW_DEVTYPE_SCSI: sd =3D SCSI_DEVICE(dev_st); - ipl->iplb.len =3D cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN); - ipl->iplb.blk0_len =3D + iplb->len =3D cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN); + iplb->blk0_len =3D cpu_to_be32(S390_IPLB_MIN_QEMU_SCSI_LEN - S390_IPLB_HEADER= _LEN); - ipl->iplb.pbt =3D S390_IPL_TYPE_QEMU_SCSI; - ipl->iplb.scsi.lun =3D cpu_to_be32(sd->lun); - ipl->iplb.scsi.target =3D cpu_to_be16(sd->id); - ipl->iplb.scsi.channel =3D cpu_to_be16(sd->channel); - ipl->iplb.scsi.devno =3D cpu_to_be16(ccw_dev->sch->devno); - ipl->iplb.scsi.ssid =3D ccw_dev->sch->ssid & 3; + iplb->pbt =3D S390_IPL_TYPE_QEMU_SCSI; + iplb->scsi.lun =3D cpu_to_be32(sd->lun); + iplb->scsi.target =3D cpu_to_be16(sd->id); + iplb->scsi.channel =3D cpu_to_be16(sd->channel); + iplb->scsi.devno =3D cpu_to_be16(ccw_dev->sch->devno); + iplb->scsi.ssid =3D ccw_dev->sch->ssid & 3; break; case CCW_DEVTYPE_VFIO: - ipl->iplb.len =3D cpu_to_be32(S390_IPLB_MIN_CCW_LEN); - ipl->iplb.pbt =3D S390_IPL_TYPE_CCW; - ipl->iplb.ccw.devno =3D cpu_to_be16(ccw_dev->sch->devno); - ipl->iplb.ccw.ssid =3D ccw_dev->sch->ssid & 3; + iplb->len =3D cpu_to_be32(S390_IPLB_MIN_CCW_LEN); + iplb->pbt =3D S390_IPL_TYPE_CCW; + iplb->ccw.devno =3D cpu_to_be16(ccw_dev->sch->devno); + iplb->ccw.ssid =3D ccw_dev->sch->ssid & 3; break; case CCW_DEVTYPE_VIRTIO_NET: + /* The S390IPLState netboot is true if ANY IPLB may use netboo= t */ ipl->netboot =3D true; /* Fall through to CCW_DEVTYPE_VIRTIO case */ case CCW_DEVTYPE_VIRTIO: - ipl->iplb.len =3D cpu_to_be32(S390_IPLB_MIN_CCW_LEN); - ipl->iplb.blk0_len =3D + iplb->len =3D cpu_to_be32(S390_IPLB_MIN_CCW_LEN); + iplb->blk0_len =3D cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN); - ipl->iplb.pbt =3D S390_IPL_TYPE_CCW; - ipl->iplb.ccw.devno =3D cpu_to_be16(ccw_dev->sch->devno); - ipl->iplb.ccw.ssid =3D ccw_dev->sch->ssid & 3; + iplb->pbt =3D S390_IPL_TYPE_CCW; + iplb->ccw.devno =3D cpu_to_be16(ccw_dev->sch->devno); + iplb->ccw.ssid =3D ccw_dev->sch->ssid & 3; break; } =20 @@ -484,8 +499,8 @@ static bool s390_gen_initial_iplb(S390IPLState *ipl) lp =3D S390_CCW_MACHINE(qdev_get_machine())->loadparm; } =20 - s390_ipl_convert_loadparm((char *)lp, ipl->iplb.loadparm); - ipl->iplb.flags |=3D DIAG308_FLAGS_LP_VALID; + s390_ipl_convert_loadparm((char *)lp, iplb->loadparm); + iplb->flags |=3D DIAG308_FLAGS_LP_VALID; =20 return true; } @@ -493,6 +508,56 @@ static bool s390_gen_initial_iplb(S390IPLState *ipl) return false; } =20 +static bool s390_init_all_iplbs(S390IPLState *ipl) +{ + int iplb_num =3D 0; + IplParameterBlock iplb_chain[7]; + DeviceState *dev_st =3D get_boot_device(0); + + /* + * Parse the boot devices. Generate an IPLB for only the first boot d= evice + * which will later be set with DIAG308. + */ + if (!dev_st) { + ipl->qipl.chain_len =3D 0; + return false; + } + + iplb_num =3D 1; + s390_build_iplb(dev_st, &ipl->iplb); + + /* Index any fallback boot devices */ + while (get_boot_device(iplb_num)) { + iplb_num++; + } + + if (iplb_num > MAX_BOOT_DEVS) { + warn_report("Excess boot devices defined! %d boot devices found, " + "but only the first %d will be considered.", + iplb_num, MAX_BOOT_DEVS); + + iplb_num =3D MAX_BOOT_DEVS; + } + + ipl->qipl.chain_len =3D iplb_num - 1; + + /* + * Build fallback IPLBs for any boot devices above index 0, up to a + * maximum amount as defined in ipl.h + */ + if (iplb_num > 1) { + /* Start at 1 because the IPLB for boot index 0 is not chained */ + for (int i =3D 1; i < iplb_num; i++) { + dev_st =3D get_boot_device(i); + s390_build_iplb(dev_st, &iplb_chain[i - 1]); + } + + ipl->qipl.next_iplb =3D s390_ipl_map_iplb_chain(iplb_chain); + } + + return iplb_num; +} + static bool is_virtio_ccw_device_of_type(IplParameterBlock *iplb, int virtio_id) { @@ -620,7 +685,7 @@ void s390_ipl_reset_request(CPUState *cs, enum s390_res= et reset_type) * this is the original boot device's SCSI * so restore IPL parameter info from it */ - ipl->iplb_valid =3D s390_gen_initial_iplb(ipl); + ipl->iplb_valid =3D s390_build_iplb(get_boot_device(0), &ipl->= iplb); } } if (reset_type =3D=3D S390_RESET_MODIFIED_CLEAR || @@ -714,7 +779,9 @@ void s390_ipl_prepare_cpu(S390CPU *cpu) if (!ipl->kernel || ipl->iplb_valid) { cpu->env.psw.addr =3D ipl->bios_start_addr; if (!ipl->iplb_valid) { - ipl->iplb_valid =3D s390_gen_initial_iplb(ipl); + ipl->iplb_valid =3D s390_init_all_iplbs(ipl); + } else { + ipl->qipl.chain_len =3D 0; } } s390_ipl_set_boot_menu(ipl); --=20 2.45.1