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([2603:8081:c640:1::1003]) by smtp.gmail.com with ESMTPSA id 586e51a60fabf-2885844a8b7sm1047097fac.58.2024.10.11.11.13.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Oct 2024 11:13:20 -0700 (PDT) X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on lists.libvirt.org X-Spam-Level: X-Spam-Status: No, score=-0.5 required=5.0 tests=DKIM_ADSP_CUSTOM_MED, DKIM_INVALID,DKIM_SIGNED,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,RCVD_IN_VALIDITY_RPBL_BLOCKED, RCVD_IN_VALIDITY_SAFE_BLOCKED,SPF_HELO_NONE autolearn=unavailable autolearn_force=no version=3.4.4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1728670401; x=1729275201; darn=lists.libvirt.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=R/cmH8iZyppHxN0UuBH2T3B4VSnxBfDcLImcEwhxPlQ=; b=Rd1vwtXsni2PF+rvBrsAI5XXEjDK1THkhDncdDj8PTaG0z6TvJWgNFeoyBCwtLkkQQ gqHvUHnCU2UZ8mJPPfPD3eHVHnsvXe+AiXlkoBTAg58DJuuXChE7NSkVb23eYqnaS4ev 6E07LvGeT6LAHlS1QhkM1Ppr+Fl2O+7qxWlE30Xxa09EPzzJe8sHFC1JxsFFJ6+gPYXc zvSSF+fGuI51a2VxCxfGNk2R8GEP86oUnc8z5Yk/v65XtU9Em+zXHlJ5SdOHN1MVqZ9r h3ASML/vpSWnXhIcQgN0o40Xv5Ipuv5L0hUheokw4J1CrbxnPB1rrLtYwdw3MoEqG109 MkHg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1728670401; x=1729275201; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=R/cmH8iZyppHxN0UuBH2T3B4VSnxBfDcLImcEwhxPlQ=; b=UGgFKLFuSeK4VfAl6ci0FtTcKdgeruI3uMkmZkarpzBbr4tDsOZYC02O0H9v/dJSOe B5vT/KZ/ealovDLMFpWk5wSg8itfq0BeX1VdMpMXXdQeUojXKGXmbn5ZVRT1Qp9SKgHx I/LcYzLCVFLaIGkKRXzX3Pz/vFALYzTgOhifCOZy2jMIlZ0ZADQRfnzdYdVPhNhHt9/w ZiEKiKZ2jWmLwzCEPCIpmsS7cXTXo+2SO04nO1jvK6hmWwtIYXjeBfSgzB4HEc9iF6Wp Kx4c1xjxLUqG7PrXBdg+nNsk8Syx5gJspexXZYZ8V/DSTVijtTIVJzxnSjZLouLtaOGv uMIQ== X-Gm-Message-State: AOJu0Yxmdvxmtv0maVbiszDeIuT7oEUW2TZ4KS/KLG8B4c7edA0jYJ8c Mq2weFtMQqgFNXm1sdQtFElrxtVR7StdCSUsZdDgDubOC9ht89E3WRANIA== X-Google-Smtp-Source: AGHT+IE6z/ED9f5DxtoI+8B6qjy5/nzyk0HFkx91ZFp+P1UcLQl52wm0XCZTldBm5MZxWC3m/r2yWg== X-Received: by 2002:a05:6870:ab09:b0:260:fbc0:96f2 with SMTP id 586e51a60fabf-2886df73aadmr3423568fac.34.1728670401458; Fri, 11 Oct 2024 11:13:21 -0700 (PDT) From: Praveen K Paladugu X-Google-Original-From: Praveen K Paladugu To: devel@lists.libvirt.org Subject: [PATCH 07/10] ch: prepare host for PCI passthrough Date: Fri, 11 Oct 2024 13:13:08 -0500 Message-ID: <20241011181311.6813-8-prapal@linux.microsoft.com> X-Mailer: git-send-email 2.44.0 In-Reply-To: <20241011181311.6813-1-prapal@linux.microsoft.com> References: <20241011181311.6813-1-prapal@linux.microsoft.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Message-ID-Hash: GSAJZYKFR2IBCIYB7SCDWIZYTWZT4A3P X-Message-ID-Hash: GSAJZYKFR2IBCIYB7SCDWIZYTWZT4A3P X-MailFrom: praveenkpaladugu@gmail.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-config-1; header-match-config-2; header-match-config-3; header-match-devel.lists.libvirt.org-0; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; suspicious-header CC: liuwe@microsoft.com X-Mailman-Version: 3.2.2 Precedence: list List-Id: Development discussions about the libvirt library & tools Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1728670592206116600 Content-Type: text/plain; charset="utf-8" From: Wei Liu Prepare host to passthrough PCI devices for ch guests. Co-authored-by: Wei Liu Signed-off-by: Praveen K Paladugu --- src/ch/ch_hostdev.c | 20 ++++++++++++++++++++ src/ch/ch_hostdev.h | 5 +++++ src/ch/ch_process.c | 30 ++++++++++++++++++++++++++++++ 3 files changed, 55 insertions(+) diff --git a/src/ch/ch_hostdev.c b/src/ch/ch_hostdev.c index 1e6210e162..a2ef56e098 100644 --- a/src/ch/ch_hostdev.c +++ b/src/ch/ch_hostdev.c @@ -22,11 +22,31 @@ =20 #include "ch_hostdev.h" #include "virlog.h" +#include "virerror.h" +#include "virhostdev.h" =20 #define VIR_FROM_THIS VIR_FROM_CH =20 VIR_LOG_INIT("ch.ch_hostdev"); =20 +int +virCHHostdevPrepareDomainDevices(virCHDriver *driver, + virDomainDef *def, + unsigned int flags) + +{ + if (!def->nhostdevs) + return 0; + + if (virHostdevPreparePCIDevices(driver->hostdevMgr, CH_DRIVER_NAME, + def->name, def->uuid, + def->hostdevs, def->nhostdevs, + flags) < 0) + return -1; + + return 0; +} + static int virCHDomainPrepareHostdevPCI(virDomainHostdevDef *hostdev) { diff --git a/src/ch/ch_hostdev.h b/src/ch/ch_hostdev.h index f9ba40ab71..f949ecbe87 100644 --- a/src/ch/ch_hostdev.h +++ b/src/ch/ch_hostdev.h @@ -25,3 +25,8 @@ =20 int virCHDomainPrepareHostdev(virDomainHostdevDef *hostdev); + +int +virCHHostdevPrepareDomainDevices(virCHDriver *driver, + virDomainDef *def, + unsigned int flags); diff --git a/src/ch/ch_process.c b/src/ch/ch_process.c index c5b5b6ebb2..ed0fa1fedb 100644 --- a/src/ch/ch_process.c +++ b/src/ch/ch_process.c @@ -824,6 +824,33 @@ virCHProcessPrepareDomainHostdevs(virDomainObj *vm) return 0; } =20 +/** + * virCHProcessPrepareHost: + * @driver: ch driver + * @vm: domain object + * + * This function groups all code that modifies host system to prepare + * environment for a domain which is about to start. + * + * This function MUST be called only after virCHProcessPrepareDomain(). + */ +static int +virCHProcessPrepareHost(virCHDriver *driver, virDomainObj *vm) +{ + unsigned int hostdev_flags =3D 0; + virCHDomainObjPrivate *priv =3D vm->privateData; + g_autoptr(virCHDriverConfig) cfg =3D virCHDriverGetConfig(driver); + + if (virCHHostdevPrepareDomainDevices(driver, vm->def, hostdev_flags) <= 0) + return -1; + + /* Ensure no historical cgroup for this VM is lying around */ + VIR_DEBUG("Ensuring no historical cgroup is lying around"); + virDomainCgroupRemoveCgroup(vm, priv->cgroup, priv->machineName); + + return 0; +} + /** * virCHProcessPrepareDomain: * @vm: domain object @@ -878,6 +905,9 @@ virCHProcessStart(virCHDriver *driver, return -1; } =20 + if (virCHProcessPrepareHost(driver, vm) < 0) + return -1; + if (!priv->monitor) { /* And we can get the first monitor connection now too */ if (!(priv->monitor =3D virCHProcessConnectMonitor(driver, vm))) { --=20 2.44.0