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spf=pass smtp.mailfrom=libvir-list-bounces@redhat.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 886722E6044 DMARC-Filter: OpenDMARC Filter v1.3.2 mx1.redhat.com 1F14D31B31C Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; dmarc=none (p=none dis=none) header.from=oracle.com Authentication-Results: ext-mx05.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=wim.ten.have@oracle.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 1F14D31B31C From: Wim Ten Have To: Libvirt Development List Date: Fri, 24 Mar 2017 22:02:34 +0100 Message-Id: <20170324210236.17019-2-wim.ten.have@oracle.com> In-Reply-To: <20170324210236.17019-1-wim.ten.have@oracle.com> References: <20170324210236.17019-1-wim.ten.have@oracle.com> X-Source-IP: aserv0021.oracle.com [141.146.126.233] X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 203 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); Fri, 24 Mar 2017 21:02:54 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.29]); 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Fri, 24 Mar 2017 21:04:57 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" From: Wim ten Have Xen feature nestedhvm is the option on Xen 4.4+ which enables nested virtualization when mode host-passthrough is applied. Virtualization on target domain can be disabled by specifying such under feature policy rule on target name; [On Intel (VT-x) architecture] or: [On AMD (AMD-V) architecture] Signed-off-by: Joao Martins Signed-off-by: Wim ten Have --- src/libxl/libxl_conf.c | 47 ++++++++++++++++++++++++++++++++++++++++++--= --- src/libxl/libxl_conf.h | 2 +- src/libxl/libxl_domain.c | 2 +- 3 files changed, 44 insertions(+), 7 deletions(-) diff --git a/src/libxl/libxl_conf.c b/src/libxl/libxl_conf.c index f5b788b..ede7c8a 100644 --- a/src/libxl/libxl_conf.c +++ b/src/libxl/libxl_conf.c @@ -47,6 +47,7 @@ #include "libxl_utils.h" #include "virstoragefile.h" #include "secret_util.h" +#include "cpu/cpu.h" =20 =20 #define VIR_FROM_THIS VIR_FROM_LIBXL @@ -292,7 +293,7 @@ libxlMakeChrdevStr(virDomainChrDefPtr def, char **buf) =20 static int libxlMakeDomBuildInfo(virDomainDefPtr def, - libxl_ctx *ctx, + libxlDriverConfigPtr cfg, libxl_domain_config *d_config) { libxl_domain_build_info *b_info =3D &d_config->b_info; @@ -308,7 +309,7 @@ libxlMakeDomBuildInfo(virDomainDefPtr def, libxl_domain_build_info_init_type(b_info, LIBXL_DOMAIN_TYPE_PV); =20 b_info->max_vcpus =3D virDomainDefGetVcpusMax(def); - if (libxl_cpu_bitmap_alloc(ctx, &b_info->avail_vcpus, b_info->max_vcpu= s)) + if (libxl_cpu_bitmap_alloc(cfg->ctx, &b_info->avail_vcpus, b_info->max= _vcpus)) return -1; libxl_bitmap_set_none(&b_info->avail_vcpus); for (i =3D 0; i < virDomainDefGetVcpus(def); i++) @@ -374,6 +375,42 @@ libxlMakeDomBuildInfo(virDomainDefPtr def, def->features[VIR_DOMAIN_FEATURE_ACPI] =3D=3D VIR_TRISTATE_SWITCH_ON); =20 + if (cfg && def->cpu && + def->cpu->mode =3D=3D (VIR_CPU_MODE_HOST_PASSTHROUGH)) { + bool hasHwVirt =3D false; + bool svm =3D false, vmx =3D false; + virCapsPtr caps =3D cfg->caps; + + if (caps && ARCH_IS_X86(def->os.arch)) { + virCPUDefPtr cpuDef =3D caps->host.cpu; + + vmx =3D virCPUCheckFeature( + cfg->caps->host.arch, cpuDef, "vmx"); + svm =3D virCPUCheckFeature( + cfg->caps->host.arch, cpuDef, "svm"); + hasHwVirt =3D (vmx | svm); + } + + if (def->cpu->nfeatures) { + for (i =3D 0; i < def->cpu->nfeatures; i++) { + + switch (def->cpu->features[i].policy) { + + case VIR_CPU_FEATURE_DISABLE: + case VIR_CPU_FEATURE_FORBID: + if ((vmx && STREQ(def->cpu->features[i].name, = "vmx")) || + (svm && STREQ(def->cpu->features[i].name, = "svm"))) + hasHwVirt =3D false; + break; + + default: + break; + } + } + } + libxl_defbool_set(&b_info->u.hvm.nested_hvm, hasHwVirt); + } + if (def->nsounds > 0) { /* * Use first sound device. man xl.cfg(5) describes soundhw as @@ -2087,15 +2124,15 @@ int libxlBuildDomainConfig(virPortAllocatorPtr graphicsports, virDomainDefPtr def, const char *channelDir LIBXL_ATTR_UNUSED, - libxl_ctx *ctx, + libxlDriverConfigPtr cfg, libxl_domain_config *d_config) { libxl_domain_config_init(d_config); =20 - if (libxlMakeDomCreateInfo(ctx, def, &d_config->c_info) < 0) + if (libxlMakeDomCreateInfo(cfg->ctx, def, &d_config->c_info) < 0) return -1; =20 - if (libxlMakeDomBuildInfo(def, ctx, d_config) < 0) + if (libxlMakeDomBuildInfo(def, cfg, d_config) < 0) return -1; =20 if (libxlMakeDiskList(def, d_config) < 0) diff --git a/src/libxl/libxl_conf.h b/src/libxl/libxl_conf.h index c653c9f..7a83669 100644 --- a/src/libxl/libxl_conf.h +++ b/src/libxl/libxl_conf.h @@ -216,7 +216,7 @@ int libxlBuildDomainConfig(virPortAllocatorPtr graphicsports, virDomainDefPtr def, const char *channelDir LIBXL_ATTR_UNUSED, - libxl_ctx *ctx, + libxlDriverConfigPtr cfg, libxl_domain_config *d_config); =20 static inline void diff --git a/src/libxl/libxl_domain.c b/src/libxl/libxl_domain.c index 57ec661..562bc67 100644 --- a/src/libxl/libxl_domain.c +++ b/src/libxl/libxl_domain.c @@ -1256,7 +1256,7 @@ libxlDomainStart(libxlDriverPrivatePtr driver, goto cleanup_dom; =20 if (libxlBuildDomainConfig(driver->reservedGraphicsPorts, vm->def, - cfg->channelDir, cfg->ctx, &d_config) < 0) + cfg->channelDir, cfg, &d_config) < 0) goto cleanup_dom; =20 if (cfg->autoballoon && libxlDomainFreeMem(cfg->ctx, &d_config) < 0) --=20 2.9.3 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Tue Apr 30 05:49:29 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; 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dmarc=none (p=none dis=none) header.from=oracle.com Authentication-Results: ext-mx06.extmail.prod.ext.phx2.redhat.com; spf=pass smtp.mailfrom=wim.ten.have@oracle.com DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.redhat.com 2D04D3DBC7 From: Wim Ten Have To: Libvirt Development List Date: Fri, 24 Mar 2017 22:02:35 +0100 Message-Id: <20170324210236.17019-3-wim.ten.have@oracle.com> In-Reply-To: <20170324210236.17019-1-wim.ten.have@oracle.com> References: <20170324210236.17019-1-wim.ten.have@oracle.com> X-Source-IP: aserv0022.oracle.com [141.146.126.234] X-Greylist: Sender passed SPF test, Sender IP whitelisted by DNSRBL, ACL 203 matched, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Fri, 24 Mar 2017 21:02:56 +0000 (UTC) X-Greylist: inspected by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.30]); Fri, 24 Mar 2017 21:02:56 +0000 (UTC) for IP:'141.146.126.69' DOMAIN:'aserp1040.oracle.com' HELO:'aserp1040.oracle.com' FROM:'wim.ten.have@oracle.com' RCPT:'' X-RedHat-Spam-Score: -104.401 (BAYES_50, DCC_REPUT_13_19, RCVD_IN_DNSWL_MED, RCVD_IN_MSPIKE_H2, RP_MATCHES_RCVD, SPF_PASS, UNPARSEABLE_RELAY, USER_IN_WHITELIST) 141.146.126.69 aserp1040.oracle.com 141.146.126.69 aserp1040.oracle.com X-Scanned-By: MIMEDefang 2.78 on 10.5.110.30 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-loop: libvir-list@redhat.com Cc: Joao Martins , Wim ten Have Subject: [libvirt] [PATCH v2 2/3] xenconfig: add conversions for xen-xl X-BeenThere: libvir-list@redhat.com X-Mailman-Version: 2.1.12 Precedence: junk List-Id: Development discussions about the libvirt library & tools List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Sender: libvir-list-bounces@redhat.com Errors-To: libvir-list-bounces@redhat.com X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.27]); Fri, 24 Mar 2017 21:05:00 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" From: Wim ten Have Per xen-xl conversions from and to native under host-passthrough mode we take care for Xen (nestedhvm =3D mode) applied and inherited settings generating or processing correct feature policy: [On Intel (VT-x) architectures] or [On AMD (AMD-V) architectures] It will then generate (or parse) for nestedhvm=3D1 in/from xl format. Signed-off-by: Joao Martins Signed-off-by: Wim ten Have --- src/xenconfig/xen_xl.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++= ++++ 1 file changed, 67 insertions(+) diff --git a/src/xenconfig/xen_xl.c b/src/xenconfig/xen_xl.c index 74f68b3..d3797b8 100644 --- a/src/xenconfig/xen_xl.c +++ b/src/xenconfig/xen_xl.c @@ -106,6 +106,7 @@ xenParseXLOS(virConfPtr conf, virDomainDefPtr def, virC= apsPtr caps) if (def->os.type =3D=3D VIR_DOMAIN_OSTYPE_HVM) { const char *bios; const char *boot; + int val =3D 0; =20 if (xenConfigGetString(conf, "bios", &bios, NULL) < 0) return -1; @@ -164,6 +165,47 @@ xenParseXLOS(virConfPtr conf, virDomainDefPtr def, vir= CapsPtr caps) } def->os.nBootDevs++; } + + if (xenConfigGetBool(conf, "nestedhvm", &val, -1) < 0) + return -1; + + if (val !=3D -1) { + virCPUDefPtr cpu =3D NULL; + + if (VIR_ALLOC(cpu) < 0) + return -1; + + if (val =3D=3D 0) { + if (VIR_ALLOC_N(cpu->features, 2) < 0) + goto cleanup; + + /* + * Below is pointless in real world but for purpose + * of testing let's check features depth holding at + * least multiple elements and also check if both + * vmx|svm are understood. + */ + cpu->features[0].policy =3D VIR_CPU_FEATURE_DISABLE; + if (VIR_STRDUP(cpu->features[0].name, "vmx") < 0) + goto cleanup; + cpu->features[1].policy =3D VIR_CPU_FEATURE_DISABLE; + if (VIR_STRDUP(cpu->features[1].name, "svm") < 0) + goto cleanup; + + cpu->nfeatures =3D cpu->nfeatures_max =3D 2; + } + cpu->mode =3D VIR_CPU_MODE_HOST_PASSTHROUGH; + cpu->type =3D VIR_CPU_TYPE_GUEST; + def->cpu =3D cpu; + cpu =3D NULL; + cleanup: + if (cpu) { + VIR_FREE(cpu->features); + VIR_FREE(cpu); + return -1; + } + } + } else { if (xenConfigCopyStringOpt(conf, "bootloader", &def->os.bootloader= ) < 0) return -1; @@ -897,6 +939,31 @@ xenFormatXLOS(virConfPtr conf, virDomainDefPtr def) if (xenConfigSetString(conf, "boot", boot) < 0) return -1; =20 + if (def->cpu && + def->cpu->mode =3D=3D VIR_CPU_MODE_HOST_PASSTHROUGH) { + bool hasHwVirt =3D true; + + if (def->cpu->nfeatures) { + for (i =3D 0; i < def->cpu->nfeatures; i++) { + + switch (def->cpu->features[i].policy) { + case VIR_CPU_FEATURE_DISABLE: + case VIR_CPU_FEATURE_FORBID: + if (STREQ(def->cpu->features[i].name, "vmx") || + STREQ(def->cpu->features[i].name, "svm")) + hasHwVirt =3D false; + break; + + default: + break; + } + } + } + + if (xenConfigSetInt(conf, "nestedhvm", hasHwVirt) < 0) + return -1; + } + /* XXX floppy disks */ } else { if (def->os.bootloader && --=20 2.9.3 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list From nobody Tue Apr 30 05:49:29 2024 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; envelope-from=libvir-list-bounces@redhat.com; helo=mx1.redhat.com; Authentication-Results: mx.zoho.com; spf=pass (zoho.com: domain of redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=libvir-list-bounces@redhat.com; Return-Path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by mx.zohomail.com with SMTPS id 1490389463886250.0707259854538; Fri, 24 Mar 2017 14:04:23 -0700 (PDT) Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 0286680494; 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Fri, 24 Mar 2017 21:04:23 +0000 (UTC) X-ZohoMail: RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" From: Wim ten Have Testing various configuration schemas targeting postive, negative and undefined nestedhvm under libvirt configuration. Mode "host-passthrough" generates nestedhvm=3D1 in/from xl format where Intel virtualization (VT-x): or AMD virtualization (AMD-V): disables virtualization mode under guest domains. Signed-off-by: Wim ten Have --- .../test-fullvirt-nestedhvm-disabled.cfg | 26 +++++++++ .../test-fullvirt-nestedhvm-disabled.xml | 62 ++++++++++++++++++= ++++ .../test-fullvirt-nestedhvm-undefined.cfg | 25 +++++++++ .../test-fullvirt-nestedhvm-undefined.xml | 58 ++++++++++++++++++= ++ tests/xlconfigdata/test-fullvirt-nestedhvm.cfg | 26 +++++++++ tests/xlconfigdata/test-fullvirt-nestedhvm.xml | 59 ++++++++++++++++++= ++ tests/xlconfigtest.c | 3 ++ 7 files changed, 259 insertions(+) create mode 100644 tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.cfg create mode 100644 tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.xml create mode 100644 tests/xlconfigdata/test-fullvirt-nestedhvm-undefined.cfg create mode 100644 tests/xlconfigdata/test-fullvirt-nestedhvm-undefined.xml create mode 100644 tests/xlconfigdata/test-fullvirt-nestedhvm.cfg create mode 100644 tests/xlconfigdata/test-fullvirt-nestedhvm.xml diff --git a/tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.cfg b/test= s/xlconfigdata/test-fullvirt-nestedhvm-disabled.cfg new file mode 100644 index 0000000..d4b9f45 --- /dev/null +++ b/tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.cfg @@ -0,0 +1,26 @@ +name =3D "XenGuest2" +uuid =3D "c7a5fdb2-cdaf-9455-926a-d65c16db1809" +maxmem =3D 579 +memory =3D 394 +vcpus =3D 1 +pae =3D 1 +acpi =3D 1 +apic =3D 1 +viridian =3D 0 +rtc_timeoffset =3D 0 +localtime =3D 0 +on_poweroff =3D "destroy" +on_reboot =3D "restart" +on_crash =3D "restart" +device_model =3D "/usr/lib/xen/bin/qemu-system-i386" +sdl =3D 0 +vnc =3D 1 +vncunused =3D 1 +vnclisten =3D "127.0.0.1" +vif =3D [ "mac=3D00:16:3e:66:92:9c,bridge=3Dxenbr1,script=3Dvif-bridge,mod= el=3De1000" ] +parallel =3D "none" +serial =3D "none" +builder =3D "hvm" +boot =3D "d" +nestedhvm =3D 0 +disk =3D [ "format=3Draw,vdev=3Dhda,access=3Drw,backendtype=3Dphy,target= =3D/dev/HostVG/XenGuest2", "format=3Dqcow2,vdev=3Dhdb,access=3Drw,backendty= pe=3Dqdisk,target=3D/var/lib/libvirt/images/XenGuest2-home", "format=3Draw,= vdev=3Dhdc,access=3Dro,backendtype=3Dqdisk,devtype=3Dcdrom,target=3D/root/b= oot.iso" ] diff --git a/tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.xml b/test= s/xlconfigdata/test-fullvirt-nestedhvm-disabled.xml new file mode 100644 index 0000000..a5b9233 --- /dev/null +++ b/tests/xlconfigdata/test-fullvirt-nestedhvm-disabled.xml @@ -0,0 +1,62 @@ + + XenGuest2 + c7a5fdb2-cdaf-9455-926a-d65c16db1809 + 592896 + 403456 + 1 + + hvm + /usr/lib/xen/boot/hvmloader + + + + + + + + + + + + + destroy + restart + restart + + /usr/lib/xen/bin/qemu-system-i386 + + + + +
+ + + + + +
+ + + + + + +
+ + + + + +