From patchwork Tue Mar 10 13:40:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Janosch Frank X-Patchwork-Id: 11429497 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0DA86139A for ; Tue, 10 Mar 2020 13:48:57 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id E1CE124649 for ; Tue, 10 Mar 2020 13:48:56 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org E1CE124649 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:33500 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jBfFg-0005pF-3z for patchwork-qemu-devel@patchwork.kernel.org; Tue, 10 Mar 2020 09:48:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:42774) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jBf9c-0002lJ-T9 for qemu-devel@nongnu.org; Tue, 10 Mar 2020 09:42:42 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1jBf9b-0008E4-AJ for qemu-devel@nongnu.org; Tue, 10 Mar 2020 09:42:40 -0400 Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:51044) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1jBf9b-0008Ci-1B for qemu-devel@nongnu.org; Tue, 10 Mar 2020 09:42:39 -0400 Received: from pps.filterd (m0098396.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 02ADga01019032 for ; Tue, 10 Mar 2020 09:42:38 -0400 Received: from e06smtp04.uk.ibm.com (e06smtp04.uk.ibm.com [195.75.94.100]) by mx0a-001b2d01.pphosted.com with ESMTP id 2ynraspkuj-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Tue, 10 Mar 2020 09:42:36 -0400 Received: from localhost by e06smtp04.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Tue, 10 Mar 2020 13:42:17 -0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps3074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 02ADgGYi459122 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 10 Mar 2020 13:42:16 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 9972D11C050; Tue, 10 Mar 2020 13:42:16 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 614AA11C04A; Tue, 10 Mar 2020 13:42:15 +0000 (GMT) Received: from localhost.localdomain (unknown [9.145.23.214]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Tue, 10 Mar 2020 13:42:15 +0000 (GMT) From: Janosch Frank To: qemu-devel@nongnu.org Subject: [PATCH v8 12/15] s390x: protvirt: Move IO control structures over SIDA Date: Tue, 10 Mar 2020 09:40:05 -0400 X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200310134008.130038-1-frankja@linux.ibm.com> References: <20200310134008.130038-1-frankja@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 x-cbid: 20031013-0016-0000-0000-000002EF054F X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 20031013-0017-0000-0000-000033526970 Message-Id: <20200310134008.130038-13-frankja@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138, 18.0.572 definitions=2020-03-10_07:2020-03-10, 2020-03-10 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 lowpriorityscore=0 spamscore=0 mlxscore=0 mlxlogscore=797 bulkscore=0 suspectscore=1 clxscore=1015 malwarescore=0 adultscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2001150001 definitions=main-2003100091 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] X-Received-From: 148.163.156.1 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: borntraeger@de.ibm.com, qemu-s390x@nongnu.org, cohuck@redhat.com, david@redhat.com Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" For protected guests, we need to put the IO emulation results into the SIDA, so SIE will write them into the guest at the next entry. Signed-off-by: Janosch Frank --- target/s390x/ioinst.c | 87 ++++++++++++++++++++++++++++++------------- 1 file changed, 61 insertions(+), 26 deletions(-) diff --git a/target/s390x/ioinst.c b/target/s390x/ioinst.c index 34afd2ee64..f3e3832add 100644 --- a/target/s390x/ioinst.c +++ b/target/s390x/ioinst.c @@ -135,9 +135,13 @@ void ioinst_handle_msch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, uintptr_t ra) s390_program_interrupt(env, PGM_SPECIFICATION, ra); return; } - if (s390_cpu_virt_mem_read(cpu, addr, ar, &schib, sizeof(schib))) { - s390_cpu_virt_mem_handle_exc(cpu, ra); - return; + if (s390_is_pv()) { + s390_cpu_pv_mem_read(cpu, addr, &schib, sizeof(schib)); + } else { + if (s390_cpu_virt_mem_read(cpu, addr, ar, &schib, sizeof(schib))) { + s390_cpu_virt_mem_handle_exc(cpu, ra); + return; + } } if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid) || !ioinst_schib_valid(&schib)) { @@ -192,9 +196,13 @@ void ioinst_handle_ssch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, uintptr_t ra) s390_program_interrupt(env, PGM_SPECIFICATION, ra); return; } - if (s390_cpu_virt_mem_read(cpu, addr, ar, &orig_orb, sizeof(orb))) { - s390_cpu_virt_mem_handle_exc(cpu, ra); - return; + if (s390_is_pv()) { + s390_cpu_pv_mem_read(cpu, addr, &orig_orb, sizeof(orb)); + } else { + if (s390_cpu_virt_mem_read(cpu, addr, ar, &orig_orb, sizeof(orb))) { + s390_cpu_virt_mem_handle_exc(cpu, ra); + return; + } } copy_orb_from_guest(&orb, &orig_orb); if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid) || @@ -228,14 +236,19 @@ void ioinst_handle_stcrw(S390CPU *cpu, uint32_t ipb, uintptr_t ra) cc = css_do_stcrw(&crw); /* 0 - crw stored, 1 - zeroes stored */ - if (s390_cpu_virt_mem_write(cpu, addr, ar, &crw, sizeof(crw)) == 0) { + if (s390_is_pv()) { + s390_cpu_pv_mem_write(cpu, addr, &crw, sizeof(crw)); setcc(cpu, cc); } else { - if (cc == 0) { - /* Write failed: requeue CRW since STCRW is suppressing */ - css_undo_stcrw(&crw); + if (s390_cpu_virt_mem_write(cpu, addr, ar, &crw, sizeof(crw)) == 0) { + setcc(cpu, cc); + } else { + if (cc == 0) { + /* Write failed: requeue CRW since STCRW is suppressing */ + css_undo_stcrw(&crw); + } + s390_cpu_virt_mem_handle_exc(cpu, ra); } - s390_cpu_virt_mem_handle_exc(cpu, ra); } } @@ -257,6 +270,9 @@ void ioinst_handle_stsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, } if (ioinst_disassemble_sch_ident(reg1, &m, &cssid, &ssid, &schid)) { + if (s390_is_pv()) { + return; + } /* * As operand exceptions have a lower priority than access exceptions, * we check whether the memory area is writeable (injecting the @@ -289,14 +305,19 @@ void ioinst_handle_stsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, } } if (cc != 3) { - if (s390_cpu_virt_mem_write(cpu, addr, ar, &schib, - sizeof(schib)) != 0) { - s390_cpu_virt_mem_handle_exc(cpu, ra); - return; + if (s390_is_pv()) { + s390_cpu_pv_mem_write(cpu, addr, &schib, sizeof(schib)); + } else { + if (s390_cpu_virt_mem_write(cpu, addr, ar, &schib, + sizeof(schib)) != 0) { + s390_cpu_virt_mem_handle_exc(cpu, ra); + return; + } } } else { /* Access exceptions have a higher priority than cc3 */ - if (s390_cpu_virt_mem_check_write(cpu, addr, ar, sizeof(schib)) != 0) { + if (!s390_is_pv() && + s390_cpu_virt_mem_check_write(cpu, addr, ar, sizeof(schib)) != 0) { s390_cpu_virt_mem_handle_exc(cpu, ra); return; } @@ -333,15 +354,20 @@ int ioinst_handle_tsch(S390CPU *cpu, uint64_t reg1, uint32_t ipb, uintptr_t ra) } /* 0 - status pending, 1 - not status pending, 3 - not operational */ if (cc != 3) { - if (s390_cpu_virt_mem_write(cpu, addr, ar, &irb, irb_len) != 0) { - s390_cpu_virt_mem_handle_exc(cpu, ra); - return -EFAULT; + if (s390_is_pv()) { + s390_cpu_pv_mem_write(cpu, addr, &irb, irb_len); + } else { + if (s390_cpu_virt_mem_write(cpu, addr, ar, &irb, irb_len) != 0) { + s390_cpu_virt_mem_handle_exc(cpu, ra); + return -EFAULT; + } } css_do_tsch_update_subch(sch); } else { irb_len = sizeof(irb) - sizeof(irb.emw); /* Access exceptions have a higher priority than cc3 */ - if (s390_cpu_virt_mem_check_write(cpu, addr, ar, irb_len) != 0) { + if (!s390_is_pv() && + s390_cpu_virt_mem_check_write(cpu, addr, ar, irb_len) != 0) { s390_cpu_virt_mem_handle_exc(cpu, ra); return -EFAULT; } @@ -639,9 +665,13 @@ void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb, uintptr_t ra) * present CHSC sub-handlers ... if we ever need more, we should take * care of req->len here first. */ - if (s390_cpu_virt_mem_read(cpu, addr, reg, buf, sizeof(ChscReq))) { - s390_cpu_virt_mem_handle_exc(cpu, ra); - return; + if (s390_is_pv()) { + s390_cpu_pv_mem_read(cpu, addr, buf, sizeof(ChscReq)); + } else { + if (s390_cpu_virt_mem_read(cpu, addr, reg, buf, sizeof(ChscReq))) { + s390_cpu_virt_mem_handle_exc(cpu, ra); + return; + } } req = (ChscReq *)buf; len = be16_to_cpu(req->len); @@ -672,11 +702,16 @@ void ioinst_handle_chsc(S390CPU *cpu, uint32_t ipb, uintptr_t ra) break; } - if (!s390_cpu_virt_mem_write(cpu, addr + len, reg, res, - be16_to_cpu(res->len))) { + if (s390_is_pv()) { + s390_cpu_pv_mem_write(cpu, addr + len, res, be16_to_cpu(res->len)); setcc(cpu, 0); /* Command execution complete */ } else { - s390_cpu_virt_mem_handle_exc(cpu, ra); + if (!s390_cpu_virt_mem_write(cpu, addr + len, reg, res, + be16_to_cpu(res->len))) { + setcc(cpu, 0); /* Command execution complete */ + } else { + s390_cpu_virt_mem_handle_exc(cpu, ra); + } } }