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bh=dgCzWiQZE84aGBa557DNAgNMPbPB8G3XLJlEEmi1Ygc=; b=h2rsWCUA+F1DLUXUYEb/aXLJDwX/EvZhxQx6nowrPajzt/unWTLo5g0v6igcGQ6PI3lnAc u+1ndnJp6GQfrNFKdycgxrGNU7wW7i8tijIimp2XXHVSOVwFGkkcmvqiLh18T6rMjDtyIE xZy11nzQ04Uxaswjy8pfFqny6jxUQ+8= X-MC-Unique: DIoqUQk5Nm2EDXaNM3_ZHQ-1 From: Cornelia Huck To: Peter Maydell Subject: [PULL 1/3] s390x/s390-virtio-ccw: Reset PCI devices during subsystem reset Date: Mon, 26 Oct 2020 12:13:45 +0100 Message-Id: <20201026111347.252015-2-cohuck@redhat.com> In-Reply-To: <20201026111347.252015-1-cohuck@redhat.com> References: <20201026111347.252015-1-cohuck@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=cohuck@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable 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; 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charset="utf-8" From: Matthew Rosato Currently, a subsystem reset event leaves PCI devices enabled, causing issues post-reset in the guest (an example would be after a kexec). These devices need to be reset during a subsystem reset, allowing them to be properly re-enabled afterwards. Add the S390 PCI host bridge to the list of qdevs to be reset during subsystem reset. Signed-off-by: Matthew Rosato Reviewed-by: Eric Farman Acked-by: Halil Pasic Acked-by: Christian Borntraeger Cc: qemu-stable@nongnu.org Message-Id: <1602767767-32713-1-git-send-email-mjrosato@linux.ibm.com> Signed-off-by: Cornelia Huck --- hw/s390x/s390-virtio-ccw.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index e52182f94633..2e900335eaba 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -101,6 +101,7 @@ static const char *const reset_dev_types[] =3D { "s390-sclp-event-facility", "s390-flic", "diag288", + TYPE_S390_PCI_HOST_BRIDGE, }; =20 static void subsystem_reset(void) --=20 2.26.2 From nobody Mon Nov 17 08:03:28 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; 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=fail(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; 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Mon, 26 Oct 2020 11:14:02 +0000 (UTC) Received: from gondolin.redhat.com (ovpn-113-108.ams2.redhat.com [10.36.113.108]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5510460BF3; Mon, 26 Oct 2020 11:13:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603710846; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=PaQtA9vdQ4ABoyOLaxUj5SLRInqyC718Ojxtk1bqNK4=; b=b37Q4lW3+YG+w4zJv3upXnw8V3m8XKXIfL3TEGj5ilfHw/chS7z/M1ipmmBxeOKZNd4IOx /5OUhlI3SaRHyDJjsTEMeurFkdzAiruOMxo+bffVP35ax+Jnjl7VpEa5HvaHzs06MVwaS2 8REvvwfbDMGXJS+TAn82IITm2zQeD8s= X-MC-Unique: OIJzqYStPYWWhZ9qHKJ73g-1 From: Cornelia Huck To: Peter Maydell Subject: [PULL 2/3] s390x: pv: Remove sclp boundary checks Date: Mon, 26 Oct 2020 12:13:46 +0100 Message-Id: <20201026111347.252015-3-cohuck@redhat.com> In-Reply-To: <20201026111347.252015-1-cohuck@redhat.com> References: <20201026111347.252015-1-cohuck@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; 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charset="utf-8" From: Janosch Frank The SCLP boundary cross check is done by the Ultravisor for a protected guest, hence we don't need to do it. As QEMU doesn't get a valid SCCB address in protected mode this is even problematic and can lead to QEMU reporting a false boundary cross error. Fixes: db13387ca0 ("s390/sclp: rework sclp boundary checks") Reported-by: Marc Hartmayer Signed-off-by: Janosch Frank Tested-by: Marc Hartmayer Reviewed-by: Christian Borntraeger Reviewed-by: Thomas Huth Reviewed-by: Collin Walling Acked-by: Halil Pasic Acked-by: David Hildenbrand Message-Id: <20201022103135.126033-2-frankja@linux.ibm.com> Signed-off-by: Cornelia Huck --- hw/s390x/sclp.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c index 00f1e4648db2..0cf229082670 100644 --- a/hw/s390x/sclp.c +++ b/hw/s390x/sclp.c @@ -285,11 +285,6 @@ int sclp_service_call_protected(CPUS390XState *env, ui= nt64_t sccb, goto out_write; } =20 - if (!sccb_verify_boundary(sccb, be16_to_cpu(work_sccb->h.length), code= )) { - work_sccb->h.response_code =3D cpu_to_be16(SCLP_RC_SCCB_BOUNDARY_V= IOLATION); - goto out_write; - } - sclp_c->execute(sclp, work_sccb, code); out_write: s390_cpu_pv_mem_write(env_archcpu(env), 0, work_sccb, --=20 2.26.2 From nobody Mon Nov 17 08:03:28 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Mon, 26 Oct 2020 07:14:17 -0400 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-101-6DaqxEe3OlGRQhex82mhdA-1; Mon, 26 Oct 2020 07:14:11 -0400 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id AC8A81018F7C; Mon, 26 Oct 2020 11:14:09 +0000 (UTC) Received: from gondolin.redhat.com (ovpn-113-108.ams2.redhat.com [10.36.113.108]) by smtp.corp.redhat.com (Postfix) with ESMTP id DB54B60BF3; Mon, 26 Oct 2020 11:14:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603710854; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=GkaNoBHpfpCUJ07C9leAfPW/7tEtt+kjYoWZ34Mpk3E=; b=hIRJFlhM/W9RvrPp0U2UzPgiQ/Fi+KrKMsgK6Z7wMGcOJCL6Qr/ECpxXi7WWSqz0xLi4Uq WD5ZQsm94SBMVkNvDjsI/tv65ScyZfzMQlRZpan/0P4p8WW1d7v/6htBYloiGJoiTHA0VC j5RWk9bUyz8+hoZ26de9y3d0ZIDyLGs= X-MC-Unique: 6DaqxEe3OlGRQhex82mhdA-1 From: Cornelia Huck To: Peter Maydell Subject: [PULL 3/3] s390x: pv: Fix diag318 PV fencing Date: Mon, 26 Oct 2020 12:13:47 +0100 Message-Id: <20201026111347.252015-4-cohuck@redhat.com> In-Reply-To: <20201026111347.252015-1-cohuck@redhat.com> References: <20201026111347.252015-1-cohuck@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=cohuck@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable 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=216.205.24.124; envelope-from=cohuck@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/26 02:39:09 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Collin Walling , Janosch Frank , David Hildenbrand , Cornelia Huck , qemu-devel@nongnu.org, Christian Borntraeger , qemu-s390x@nongnu.org, Marc Hartmayer Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" From: Janosch Frank Diag318 fencing needs to be determined on the current VM PV state and not on the state that the VM has when we create the CPU model. Fixes: fabdada935 ("s390: guest support for diagnose 0x318") Reported-by: Marc Hartmayer Signed-off-by: Janosch Frank Tested-by: Marc Hartmayer Reviewed-by: Christian Borntraeger Reviewed-by: Collin Walling Acked-by: David Hildenbrand Message-Id: <20201022103135.126033-3-frankja@linux.ibm.com> Signed-off-by: Cornelia Huck --- target/s390x/cpu_features.c | 5 +++++ target/s390x/cpu_features.h | 4 ++++ target/s390x/cpu_models.c | 4 ++++ target/s390x/kvm.c | 3 +-- 4 files changed, 14 insertions(+), 2 deletions(-) diff --git a/target/s390x/cpu_features.c b/target/s390x/cpu_features.c index 31ea8df2460e..42fe0bf4ca7a 100644 --- a/target/s390x/cpu_features.c +++ b/target/s390x/cpu_features.c @@ -14,6 +14,7 @@ #include "qemu/osdep.h" #include "qemu/module.h" #include "cpu_features.h" +#include "hw/s390x/pv.h" =20 #define DEF_FEAT(_FEAT, _NAME, _TYPE, _BIT, _DESC) \ [S390_FEAT_##_FEAT] =3D { \ @@ -105,6 +106,10 @@ void s390_fill_feat_block(const S390FeatBitmap feature= s, S390FeatType type, } feat =3D find_next_bit(features, S390_FEAT_MAX, feat + 1); } + + if (type =3D=3D S390_FEAT_TYPE_SCLP_FAC134 && s390_is_pv()) { + clear_be_bit(s390_feat_def(S390_FEAT_DIAG_318)->bit, data); + } } =20 void s390_add_from_feat_block(S390FeatBitmap features, S390FeatType type, diff --git a/target/s390x/cpu_features.h b/target/s390x/cpu_features.h index ef52ffce83ec..87463f064d2a 100644 --- a/target/s390x/cpu_features.h +++ b/target/s390x/cpu_features.h @@ -81,6 +81,10 @@ const S390FeatGroupDef *s390_feat_group_def(S390FeatGrou= p group); =20 #define BE_BIT_NR(BIT) (BIT ^ (BITS_PER_LONG - 1)) =20 +static inline void clear_be_bit(unsigned int bit_nr, uint8_t *array) +{ + array[bit_nr / 8] &=3D ~(0x80 >> (bit_nr % 8)); +} static inline void set_be_bit(unsigned int bit_nr, uint8_t *array) { array[bit_nr / 8] |=3D 0x80 >> (bit_nr % 8); diff --git a/target/s390x/cpu_models.c b/target/s390x/cpu_models.c index ca484bfda7be..461e0b8f4a8d 100644 --- a/target/s390x/cpu_models.c +++ b/target/s390x/cpu_models.c @@ -29,6 +29,7 @@ #include "hw/pci/pci.h" #endif #include "qapi/qapi-commands-machine-target.h" +#include "hw/s390x/pv.h" =20 #define CPUDEF_INIT(_type, _gen, _ec_ga, _mha_pow, _hmfai, _name, _desc) \ { \ @@ -238,6 +239,9 @@ bool s390_has_feat(S390Feat feat) } return 0; } + if (feat =3D=3D S390_FEAT_DIAG_318 && s390_is_pv()) { + return false; + } return test_bit(feat, cpu->model->features); } =20 diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c index f13eff688caf..baa070fdf7f9 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -2498,8 +2498,7 @@ void kvm_s390_get_host_cpu_model(S390CPUModel *model,= Error **errp) */ set_bit(S390_FEAT_EXTENDED_LENGTH_SCCB, model->features); =20 - /* DIAGNOSE 0x318 is not supported under protected virtualization */ - if (!s390_is_pv() && kvm_check_extension(kvm_state, KVM_CAP_S390_DIAG3= 18)) { + if (kvm_check_extension(kvm_state, KVM_CAP_S390_DIAG318)) { set_bit(S390_FEAT_DIAG_318, model->features); } =20 --=20 2.26.2