From nobody Sun Feb 8 21:28:39 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@gnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@gnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1506631953585768.7322828715396; Thu, 28 Sep 2017 13:52:33 -0700 (PDT) Received: from localhost ([::1]:60833 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dxfnI-0008IF-Ns for importer@patchew.org; Thu, 28 Sep 2017 16:52:28 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53573) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dxfa4-0004nR-5f for qemu-devel@nongnu.org; Thu, 28 Sep 2017 16:38:49 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dxfa0-0003Yv-7q for qemu-devel@nongnu.org; Thu, 28 Sep 2017 16:38:48 -0400 Received: from mx1.redhat.com ([209.132.183.28]:37202) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dxfa0-0003YV-1Y for qemu-devel@nongnu.org; Thu, 28 Sep 2017 16:38:44 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 15264859FA; Thu, 28 Sep 2017 20:38:43 +0000 (UTC) Received: from t460s.redhat.com (ovpn-116-18.ams2.redhat.com [10.36.116.18]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3CE9E18C57; Thu, 28 Sep 2017 20:38:41 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 15264859FA Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=redhat.com Authentication-Results: ext-mx02.extmail.prod.ext.phx2.redhat.com; spf=fail smtp.mailfrom=david@redhat.com From: David Hildenbrand To: qemu-devel@nongnu.org Date: Thu, 28 Sep 2017 22:36:57 +0200 Message-Id: <20170928203708.9376-20-david@redhat.com> In-Reply-To: <20170928203708.9376-1-david@redhat.com> References: <20170928203708.9376-1-david@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Thu, 28 Sep 2017 20:38:43 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 19/30] s390x/tcg: implement SIGP SENSE RUNNING STATUS X-BeenThere: qemu-devel@gnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: thuth@redhat.com, David Hildenbrand , cohuck@redhat.com, Richard Henderson , Alexander Graf , Christian Borntraeger Errors-To: qemu-devel-bounces+importer=patchew.org@gnu.org Sender: "Qemu-devel" X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Preparation for TCG, for KVM is this is completely handled in the kernel. Signed-off-by: David Hildenbrand Reviewed-by: Richard Henderson --- target/s390x/cpu.h | 2 ++ target/s390x/sigp.c | 25 +++++++++++++++++++++++++ 2 files changed, 27 insertions(+) diff --git a/target/s390x/cpu.h b/target/s390x/cpu.h index f94d7f96e0..6b92b0751a 100644 --- a/target/s390x/cpu.h +++ b/target/s390x/cpu.h @@ -590,6 +590,7 @@ struct sysib_322 { #define SIGP_SET_PREFIX 0x0d #define SIGP_STORE_STATUS_ADDR 0x0e #define SIGP_SET_ARCH 0x12 +#define SIGP_SENSE_RUNNING 0x15 #define SIGP_STORE_ADTL_STATUS 0x17 =20 /* SIGP condition codes */ @@ -600,6 +601,7 @@ struct sysib_322 { =20 /* SIGP status bits */ #define SIGP_STAT_EQUIPMENT_CHECK 0x80000000UL +#define SIGP_STAT_NOT_RUNNING 0x00000400UL #define SIGP_STAT_INCORRECT_STATE 0x00000200UL #define SIGP_STAT_INVALID_PARAMETER 0x00000100UL #define SIGP_STAT_EXT_CALL_PENDING 0x00000080UL diff --git a/target/s390x/sigp.c b/target/s390x/sigp.c index 9587c3d319..c57312b743 100644 --- a/target/s390x/sigp.c +++ b/target/s390x/sigp.c @@ -234,6 +234,28 @@ static void sigp_set_prefix(CPUState *cs, run_on_cpu_d= ata arg) si->cc =3D SIGP_CC_ORDER_CODE_ACCEPTED; } =20 +static void sigp_sense_running(S390CPU *dst_cpu, SigpInfo *si) +{ + if (!tcg_enabled()) { + /* handled in KVM */ + set_sigp_status(si, SIGP_STAT_INVALID_ORDER); + return; + } + + /* sensing without locks is racy, but it's the same for real hw */ + if (!s390_has_feat(S390_FEAT_SENSE_RUNNING_STATUS)) { + set_sigp_status(si, SIGP_STAT_INVALID_ORDER); + return; + } + + /* If halted (which includes also STOPPED), it is not running */ + if (CPU(dst_cpu)->halted) { + si->cc =3D SIGP_CC_ORDER_CODE_ACCEPTED; + } else { + set_sigp_status(si, SIGP_STAT_NOT_RUNNING); + } +} + static int handle_sigp_single_dst(S390CPU *dst_cpu, uint8_t order, uint64_t param, uint64_t *status_reg) { @@ -282,6 +304,9 @@ static int handle_sigp_single_dst(S390CPU *dst_cpu, uin= t8_t order, case SIGP_CPU_RESET: run_on_cpu(CPU(dst_cpu), sigp_cpu_reset, RUN_ON_CPU_HOST_PTR(&si)); break; + case SIGP_SENSE_RUNNING: + sigp_sense_running(dst_cpu, &si); + break; default: set_sigp_status(&si, SIGP_STAT_INVALID_ORDER); } --=20 2.13.5