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This RFC patch series introduces initial libvirt support for guest dedicated crypto adapters on S390. It essentially allows to specify a vfio-ap mediated device in a domain. Extensive documentation about AP is available in patch 6 of the QEMU patch series. KVM/kernel: guest dedicated crypto adapters https://lkml.org/lkml/2018/9/26/25 QEMU: s390x: vfio-ap: guest dedicated crypto adapters https://lists.gnu.org/archive/html/qemu-devel/2018-09/msg03538.html Boris Fiuczynski (3): qemu: add vfio-ap capability qemu: vfio-ap device support news: Update news for vfio-ap support docs/formatdomain.html.in | 3 ++- docs/news.xml | 9 +++++++++ docs/schemas/domaincommon.rng | 1 + src/qemu/qemu_capabilities.c | 2 ++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 8 ++++++++ src/qemu/qemu_domain_address.c | 4 ++++ src/util/virmdev.c | 3 ++- src/util/virmdev.h | 1 + 9 files changed, 30 insertions(+), 2 deletions(-) -- 2.17.0 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Introduce vfio-ap capability. Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com> --- src/qemu/qemu_capabilities.c | 2 ++ src/qemu/qemu_capabilities.h | 1 + 2 files changed, 3 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index XXXXXXX..XXXXXXX 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -XXX,XX +XXX,XX @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST, /* 315 */ "vfio-pci.display", "blockdev", + "vfio-ap", ); @@ -XXX,XX +XXX,XX @@ struct virQEMUCapsStringFlags virQEMUCapsObjectTypes[] = { { "vhost-vsock-device", QEMU_CAPS_DEVICE_VHOST_VSOCK }, { "mch", QEMU_CAPS_DEVICE_MCH }, { "sev-guest", QEMU_CAPS_SEV_GUEST }, + { "vfio-ap", QEMU_CAPS_DEVICE_VFIO_AP }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsVirtioBalloon[] = { diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index XXXXXXX..XXXXXXX 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -XXX,XX +XXX,XX @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */ /* 315 */ QEMU_CAPS_VFIO_PCI_DISPLAY, /* -device vfio-pci.display */ QEMU_CAPS_BLOCKDEV, /* -blockdev and blockdev-add are supported */ + QEMU_CAPS_DEVICE_VFIO_AP, /* -device vfio-ap */ QEMU_CAPS_LAST /* this must always be the last item */ } virQEMUCapsFlags; -- 2.17.0 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Adjusting domain format documentation, adding device address support and adding command line generation for vfio-ap. Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com> --- docs/formatdomain.html.in | 3 ++- docs/schemas/domaincommon.rng | 1 + src/qemu/qemu_command.c | 8 ++++++++ src/qemu/qemu_domain_address.c | 4 ++++ src/util/virmdev.c | 3 ++- src/util/virmdev.h | 1 + 6 files changed, 18 insertions(+), 2 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index XXXXXXX..XXXXXXX 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -XXX,XX +XXX,XX @@ <dd>For mediated devices (<span class="since">Since 3.2.0</span>) the <code>model</code> attribute specifies the device API which determines how the host's vfio driver will expose the device to the - guest. Currently, <code>model='vfio-pci'</code> and + guest. Currently, <code>model='vfio-pci'</code>, <code>model='vfio-ccw'</code> (<span class="since">Since 4.4.0</span>) + and <code>model='vfio-ap'</code> (<span class="since">Since 4.9.0</span>) is supported. <a href="drvnodedev.html#MDEV">MDEV</a> section provides more information about mediated devices as well as how to create mediated devices on the host. diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index XXXXXXX..XXXXXXX 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -XXX,XX +XXX,XX @@ <choice> <value>vfio-pci</value> <value>vfio-ccw</value> + <value>vfio-ap</value> </choice> </attribute> <optional> diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index XXXXXXX..XXXXXXX 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -XXX,XX +XXX,XX @@ qemuBuildHostdevCommandLine(virCommandPtr cmd, return -1; } break; + case VIR_MDEV_MODEL_TYPE_VFIO_AP: + if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VFIO_AP)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("VFIO AP device assignment is not " + "supported by this version of QEMU")); + return -1; + } + break; case VIR_MDEV_MODEL_TYPE_LAST: default: virReportEnumRangeError(virMediatedDeviceModelType, diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c index XXXXXXX..XXXXXXX 100644 --- a/src/qemu/qemu_domain_address.c +++ b/src/qemu/qemu_domain_address.c @@ -XXX,XX +XXX,XX @@ qemuDomainPrimeVfioDeviceAddresses(virDomainDefPtr def, subsys->u.mdev.model == VIR_MDEV_MODEL_TYPE_VFIO_CCW && def->hostdevs[i]->info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) def->hostdevs[i]->info->type = type; + + if (virHostdevIsMdevDevice(def->hostdevs[i]) && + subsys->u.mdev.model == VIR_MDEV_MODEL_TYPE_VFIO_AP) + def->hostdevs[i]->info->type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE; } } diff --git a/src/util/virmdev.c b/src/util/virmdev.c index XXXXXXX..XXXXXXX 100644 --- a/src/util/virmdev.c +++ b/src/util/virmdev.c @@ -XXX,XX +XXX,XX @@ struct _virMediatedDeviceList { VIR_ENUM_IMPL(virMediatedDeviceModel, VIR_MDEV_MODEL_TYPE_LAST, "vfio-pci", - "vfio-ccw") + "vfio-ccw", + "vfio-ap") static virClassPtr virMediatedDeviceListClass; diff --git a/src/util/virmdev.h b/src/util/virmdev.h index XXXXXXX..XXXXXXX 100644 --- a/src/util/virmdev.h +++ b/src/util/virmdev.h @@ -XXX,XX +XXX,XX @@ typedef enum { VIR_MDEV_MODEL_TYPE_VFIO_PCI = 0, VIR_MDEV_MODEL_TYPE_VFIO_CCW = 1, + VIR_MDEV_MODEL_TYPE_VFIO_AP = 2, VIR_MDEV_MODEL_TYPE_LAST } virMediatedDeviceModelType; -- 2.17.0 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com> --- docs/news.xml | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/docs/news.xml b/docs/news.xml index XXXXXXX..XXXXXXX 100644 --- a/docs/news.xml +++ b/docs/news.xml @@ -XXX,XX +XXX,XX @@ <libvirt> <release version="v4.9.0" date="unreleased"> <section title="New features"> + <change> + <summary> + qemu: Add vfio AP support + </summary> + <description> + The qemu driver now has support to passthrough adjunct processors + into qemu guests on S390. + </description> + </change> </section> <section title="Improvements"> </section> -- 2.17.0 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
v2: + added singleton check for vfio-ap mediated device This patch series introduces initial libvirt support for guest dedicated crypto adapters on S390. It allows to specify a vfio-ap mediated device in a domain. Extensive documentation about AP is available in patch 6 of the QEMU patch series. KVM/kernel: guest dedicated crypto adapters https://lkml.org/lkml/2018/9/26/25 QEMU: s390x: vfio-ap: guest dedicated crypto adapters https://lists.gnu.org/archive/html/qemu-devel/2018-10/msg01993.html The qemu patch series has been included into master. https://git.qemu.org/?p=qemu.git;a=commit;h=69ac8c4cb93f2685839ff7b857cef306b388ff3c Boris Fiuczynski (3): qemu: add vfio-ap capability qemu: vfio-ap device support news: Update news for vfio-ap support docs/formatdomain.html.in | 3 ++- docs/news.xml | 9 +++++++++ docs/schemas/domaincommon.rng | 1 + src/conf/domain_conf.c | 28 ++++++++++++++++++++++++++++ src/qemu/qemu_capabilities.c | 2 ++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 8 ++++++++ src/qemu/qemu_domain_address.c | 4 ++++ src/util/virmdev.c | 3 ++- src/util/virmdev.h | 1 + 10 files changed, 58 insertions(+), 2 deletions(-) -- 2.17.0 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Introduce vfio-ap capability. Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com> Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com> --- src/qemu/qemu_capabilities.c | 2 ++ src/qemu/qemu_capabilities.h | 1 + 2 files changed, 3 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index XXXXXXX..XXXXXXX 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -XXX,XX +XXX,XX @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST, /* 315 */ "vfio-pci.display", "blockdev", + "vfio-ap", ); @@ -XXX,XX +XXX,XX @@ struct virQEMUCapsStringFlags virQEMUCapsObjectTypes[] = { { "vhost-vsock-device", QEMU_CAPS_DEVICE_VHOST_VSOCK }, { "mch", QEMU_CAPS_DEVICE_MCH }, { "sev-guest", QEMU_CAPS_SEV_GUEST }, + { "vfio-ap", QEMU_CAPS_DEVICE_VFIO_AP }, }; static struct virQEMUCapsStringFlags virQEMUCapsDevicePropsVirtioBalloon[] = { diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index XXXXXXX..XXXXXXX 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -XXX,XX +XXX,XX @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */ /* 315 */ QEMU_CAPS_VFIO_PCI_DISPLAY, /* -device vfio-pci.display */ QEMU_CAPS_BLOCKDEV, /* -blockdev and blockdev-add are supported */ + QEMU_CAPS_DEVICE_VFIO_AP, /* -device vfio-ap */ QEMU_CAPS_LAST /* this must always be the last item */ } virQEMUCapsFlags; -- 2.17.0 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Adjusting domain format documentation, adding device address support and adding command line generation for vfio-ap. Since only one mediated hostdev with model vfio-ap is supported a check disallows to define domains with more than one such hostdev device. Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com> Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com> --- docs/formatdomain.html.in | 3 ++- docs/schemas/domaincommon.rng | 1 + src/conf/domain_conf.c | 28 ++++++++++++++++++++++++++++ src/qemu/qemu_command.c | 8 ++++++++ src/qemu/qemu_domain_address.c | 4 ++++ src/util/virmdev.c | 3 ++- src/util/virmdev.h | 1 + 7 files changed, 46 insertions(+), 2 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index XXXXXXX..XXXXXXX 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -XXX,XX +XXX,XX @@ <dd>For mediated devices (<span class="since">Since 3.2.0</span>) the <code>model</code> attribute specifies the device API which determines how the host's vfio driver will expose the device to the - guest. Currently, <code>model='vfio-pci'</code> and + guest. Currently, <code>model='vfio-pci'</code>, <code>model='vfio-ccw'</code> (<span class="since">Since 4.4.0</span>) + and <code>model='vfio-ap'</code> (<span class="since">Since 4.9.0</span>) is supported. <a href="drvnodedev.html#MDEV">MDEV</a> section provides more information about mediated devices as well as how to create mediated devices on the host. diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index XXXXXXX..XXXXXXX 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -XXX,XX +XXX,XX @@ <choice> <value>vfio-pci</value> <value>vfio-ccw</value> + <value>vfio-ap</value> </choice> </attribute> <optional> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index XXXXXXX..XXXXXXX 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -XXX,XX +XXX,XX @@ virDomainDefPostParseGraphics(virDomainDef *def) } +static int +virDomainDefPostParseHostdev(virDomainDefPtr def) +{ + size_t i; + bool vfioap_found = false; + + /* verify settings of hostdevs vfio-ap */ + for (i = 0; i < def->nhostdevs; i++) { + virDomainHostdevDefPtr hostdev = def->hostdevs[i]; + + if (virHostdevIsMdevDevice(hostdev) && + hostdev->source.subsys.u.mdev.model == VIR_MDEV_MODEL_TYPE_VFIO_AP) { + if (vfioap_found) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("Only one hostdev of model vfio-ap is " + "support")); + return -1; + } + vfioap_found = true; + } + } + return 0; +} + + /** * virDomainDriveAddressIsUsedByDisk: * @def: domain definition containing the disks to check @@ -XXX,XX +XXX,XX @@ virDomainDefPostParseCommon(virDomainDefPtr def, virDomainDefPostParseGraphics(def); + if (virDomainDefPostParseHostdev(def) < 0) + return -1; + if (virDomainDefPostParseCPU(def) < 0) return -1; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index XXXXXXX..XXXXXXX 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -XXX,XX +XXX,XX @@ qemuBuildHostdevCommandLine(virCommandPtr cmd, return -1; } break; + case VIR_MDEV_MODEL_TYPE_VFIO_AP: + if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VFIO_AP)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("VFIO AP device assignment is not " + "supported by this version of QEMU")); + return -1; + } + break; case VIR_MDEV_MODEL_TYPE_LAST: default: virReportEnumRangeError(virMediatedDeviceModelType, diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c index XXXXXXX..XXXXXXX 100644 --- a/src/qemu/qemu_domain_address.c +++ b/src/qemu/qemu_domain_address.c @@ -XXX,XX +XXX,XX @@ qemuDomainPrimeVfioDeviceAddresses(virDomainDefPtr def, subsys->u.mdev.model == VIR_MDEV_MODEL_TYPE_VFIO_CCW && def->hostdevs[i]->info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) def->hostdevs[i]->info->type = type; + + if (virHostdevIsMdevDevice(def->hostdevs[i]) && + subsys->u.mdev.model == VIR_MDEV_MODEL_TYPE_VFIO_AP) + def->hostdevs[i]->info->type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE; } } diff --git a/src/util/virmdev.c b/src/util/virmdev.c index XXXXXXX..XXXXXXX 100644 --- a/src/util/virmdev.c +++ b/src/util/virmdev.c @@ -XXX,XX +XXX,XX @@ struct _virMediatedDeviceList { VIR_ENUM_IMPL(virMediatedDeviceModel, VIR_MDEV_MODEL_TYPE_LAST, "vfio-pci", - "vfio-ccw") + "vfio-ccw", + "vfio-ap") static virClassPtr virMediatedDeviceListClass; diff --git a/src/util/virmdev.h b/src/util/virmdev.h index XXXXXXX..XXXXXXX 100644 --- a/src/util/virmdev.h +++ b/src/util/virmdev.h @@ -XXX,XX +XXX,XX @@ typedef enum { VIR_MDEV_MODEL_TYPE_VFIO_PCI = 0, VIR_MDEV_MODEL_TYPE_VFIO_CCW = 1, + VIR_MDEV_MODEL_TYPE_VFIO_AP = 2, VIR_MDEV_MODEL_TYPE_LAST } virMediatedDeviceModelType; -- 2.17.0 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com> --- docs/news.xml | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/docs/news.xml b/docs/news.xml index XXXXXXX..XXXXXXX 100644 --- a/docs/news.xml +++ b/docs/news.xml @@ -XXX,XX +XXX,XX @@ <libvirt> <release version="v4.9.0" date="unreleased"> <section title="New features"> + <change> + <summary> + qemu: Add vfio AP support + </summary> + <description> + The QEMU driver now has support to passthrough adjunct processors + into QEMU guests on S390. + </description> + </change> </section> <section title="Improvements"> </section> -- 2.17.0 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list