From: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; Add zPCI definitions in preparation of extending the PCI address with parameters uid (user-defined identifier) and fid (PCI function identifier). Signed-off-by: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com&gt; Reviewed-by: Stefan Zimmermann <stzi(a)linux.ibm.com&gt; Reviewed-by: Bjoern Walk <bwalk(a)linux.vnet.ibm.com&gt; --- src/util/virpci.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/src/util/virpci.h b/src/util/virpci.h index 794b7e59db..250e9278ba 100644 --- a/src/util/virpci.h +++ b/src/util/virpci.h @@ -36,12 +36,22 @@ typedef virPCIDeviceAddress *virPCIDeviceAddressPtr; typedef struct _virPCIDeviceList virPCIDeviceList; typedef virPCIDeviceList *virPCIDeviceListPtr; +typedef struct _virZPCIDeviceAddress virZPCIDeviceAddress; +typedef virZPCIDeviceAddress *virZPCIDeviceAddressPtr; +struct _virZPCIDeviceAddress { + unsigned int zpcifid; + unsigned int zpciuid; + bool fid_assigned; + bool uid_assigned; +}; + struct _virPCIDeviceAddress { unsigned int domain; unsigned int bus; unsigned int slot; unsigned int function; int multi; /* virTristateSwitch */ + virZPCIDeviceAddressPtr zpci; }; typedef enum { -- 2.16.3

在 2018/6/2 下午10:12, Ján Tomko 写道: OK. Thanks!

Laine Stump <laine(a)laine.org&gt; [2018-06-07, 09:43PM -0400]: Yeah, we do encode a lot of state with this member. IIRC, if the zpci pointer is allocated, we generally do have zpci support available. The booleans refer to if an actual zpci address has been generated by the PCI address generation code. This only happens when the pointer is allocated. Another way would be to check the zpci capability. -- IBM Systems Linux on Z & Virtualization Development ------------------------------------------------------------------------ IBM Deutschland Research & Development GmbH Schönaicher Str. 220, 71032 Böblingen Phone: +49 7031 16 1819 ------------------------------------------------------------------------ Vorsitzende des Aufsichtsrats: Martina Koederitz Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen Registergericht: Amtsgericht Stuttgart, HRB 243294

On Thursday, 24 May 2018 14:24:27 CEST Xiao Feng Ren wrote: Wrong indentation here. -- Pino Toscano

From: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; This patch introduces a new attribute PCI address extension flag to deal with the extension PCI attributes such as 'uid' and 'fid' on the S390 platform. Signed-off-by: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com&gt; --- src/conf/device_conf.h | 1 + src/conf/domain_addr.h | 5 ++ src/qemu/qemu_domain_address.c | 137 ++++++++++++++++++++++++++++++++++++++++- 3 files changed, 141 insertions(+), 2 deletions(-) diff --git a/src/conf/device_conf.h b/src/conf/device_conf.h index a31ce9c376..6f926dff1d 100644 --- a/src/conf/device_conf.h +++ b/src/conf/device_conf.h @@ -164,6 +164,7 @@ struct _virDomainDeviceInfo { * assignment, never saved and never reported. */ int pciConnectFlags; /* enum virDomainPCIConnectFlags */ + int pciAddressExtFlags; /* enum virDomainPCIAddressExtensionFlags */ char *loadparm; /* PCI devices will only be automatically placed on a PCI bus diff --git a/src/conf/domain_addr.h b/src/conf/domain_addr.h index 3236b7d6de..1d1837bd23 100644 --- a/src/conf/domain_addr.h +++ b/src/conf/domain_addr.h @@ -29,6 +29,11 @@ # define VIR_PCI_ADDRESS_SLOT_LAST 31 # define VIR_PCI_ADDRESS_FUNCTION_LAST 7 +typedef enum { + VIR_PCI_ADDRESS_EXTENSION_NONE = 0, /* no extension */ + VIR_PCI_ADDRESS_EXTENSION_ZPCI = 1 << 0, /* zpci support */ +} virDomainPCIAddressExtensionFlags; + typedef enum { VIR_PCI_CONNECT_HOTPLUGGABLE = 1 << 0, /* is hotplug needed/supported */ diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c index b7c82cb6f1..adce399be6 100644 --- a/src/qemu/qemu_domain_address.c +++ b/src/qemu/qemu_domain_address.c @@ -502,6 +502,60 @@ qemuDomainAssignARMVirtioMMIOAddresses(virDomainDefPtr def, } +static bool +qemuDomainDeviceSupportZPCI(virQEMUCapsPtr qemuCaps, + virDomainDeviceDefPtr device) +{ + if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_ZPCI)) + return false; + + switch ((virDomainDeviceType) device->type) { + case VIR_DOMAIN_DEVICE_CONTROLLER: + case VIR_DOMAIN_DEVICE_CHR: + return false; + + case VIR_DOMAIN_DEVICE_NONE: + case VIR_DOMAIN_DEVICE_DISK: + case VIR_DOMAIN_DEVICE_LEASE: + case VIR_DOMAIN_DEVICE_FS: + case VIR_DOMAIN_DEVICE_NET: + case VIR_DOMAIN_DEVICE_INPUT: + case VIR_DOMAIN_DEVICE_SOUND: + case VIR_DOMAIN_DEVICE_VIDEO: + case VIR_DOMAIN_DEVICE_HOSTDEV: + case VIR_DOMAIN_DEVICE_WATCHDOG: + case VIR_DOMAIN_DEVICE_GRAPHICS: + case VIR_DOMAIN_DEVICE_HUB: + case VIR_DOMAIN_DEVICE_REDIRDEV: + case VIR_DOMAIN_DEVICE_SMARTCARD: + case VIR_DOMAIN_DEVICE_MEMBALLOON: + case VIR_DOMAIN_DEVICE_NVRAM: + case VIR_DOMAIN_DEVICE_RNG: + case VIR_DOMAIN_DEVICE_SHMEM: + case VIR_DOMAIN_DEVICE_TPM: + case VIR_DOMAIN_DEVICE_PANIC: + case VIR_DOMAIN_DEVICE_MEMORY: + case VIR_DOMAIN_DEVICE_IOMMU: + case VIR_DOMAIN_DEVICE_LAST: + break; + } + return true; +} + + +static virDomainPCIAddressExtensionFlags +qemuDomainDeviceCalculatePCIAddressExtensionFlags(virQEMUCapsPtr qemuCaps, + virDomainDeviceDefPtr dev) +{ + virDomainPCIAddressExtensionFlags extFlags = 0; + + if (qemuDomainDeviceSupportZPCI(qemuCaps, dev)) + extFlags |= VIR_PCI_ADDRESS_EXTENSION_ZPCI; + + return extFlags; +} + + /** * qemuDomainDeviceCalculatePCIConnectFlags: * @@ -980,6 +1034,55 @@ qemuDomainFillAllPCIConnectFlags(virDomainDefPtr def, } +/** + * qemuDomainFillDevicePCIExtensionFlagsIter: + * + * @def: the entire DomainDef + * @dev: The device to be checked + * @info: virDomainDeviceInfo within the device + * @opaque: qemu capabilities + * + * Sets the pciAddressExtFlags for a single device's info. Has properly + * formatted arguments to be called by virDomainDeviceInfoIterate(). + * + * Always returns 0 - there is no failure. + */ +static int +qemuDomainFillDevicePCIExtensionFlagsIter(virDomainDefPtr def ATTRIBUTE_UNUSED, + virDomainDeviceDefPtr dev, + virDomainDeviceInfoPtr info, + void *opaque) +{ + virQEMUCapsPtr qemuCaps = opaque; + + info->pciAddressExtFlags + = qemuDomainDeviceCalculatePCIAddressExtensionFlags(qemuCaps, dev); + return 0; +} + + +/** + * qemuDomainFillAllPCIExtensionFlags: + * + * @def: the entire DomainDef + * @qemuCaps: as you'd expect + * + * Set the info->pciAddressExtFlags for all devices in the domain. + * + * Returns 0 on success or -1 on failure (the only possibility of + * failure would be some internal problem with + * virDomainDeviceInfoIterate()) + */ +static int +qemuDomainFillAllPCIExtensionFlags(virDomainDefPtr def, + virQEMUCapsPtr qemuCaps) +{ + return virDomainDeviceInfoIterate(def, + qemuDomainFillDevicePCIExtensionFlagsIter, + qemuCaps); +} + + /** * qemuDomainFindUnusedIsolationGroupIter: * @def: domain definition @@ -1254,6 +1357,29 @@ qemuDomainFillDevicePCIConnectFlags(virDomainDefPtr def, } +/** + * qemuDomainFillDevicePCIExtensionFlags: + * + * @dev: The device to be checked + * @qemuCaps: as you'd expect + * + * Set the info->pciAddressExtFlags for a single device. + * + * No return value. + */ +static void +qemuDomainFillDevicePCIExtensionFlags(virDomainDeviceDefPtr dev, + virQEMUCapsPtr qemuCaps) +{ + virDomainDeviceInfoPtr info = virDomainDeviceGetInfo(dev); + + if (info) { + info->pciAddressExtFlags + = qemuDomainDeviceCalculatePCIAddressExtensionFlags(qemuCaps, dev); + } +} + + static int qemuDomainPCIAddressReserveNextAddr(virDomainPCIAddressSetPtr addrs, virDomainDeviceInfoPtr dev) @@ -2380,6 +2506,9 @@ qemuDomainAssignPCIAddresses(virDomainDefPtr def, if (qemuDomainFillAllPCIConnectFlags(def, qemuCaps, driver) < 0) goto cleanup; + if (qemuDomainFillAllPCIExtensionFlags(def, qemuCaps) < 0) + goto cleanup; + if (qemuDomainSetupIsolationGroups(def) < 0) goto cleanup; @@ -2415,7 +2544,8 @@ qemuDomainAssignPCIAddresses(virDomainDefPtr def, */ virDomainDeviceInfo info = { .pciConnectFlags = (VIR_PCI_CONNECT_HOTPLUGGABLE | - VIR_PCI_CONNECT_TYPE_PCI_DEVICE) + VIR_PCI_CONNECT_TYPE_PCI_DEVICE), + .pciAddressExtFlags = VIR_PCI_ADDRESS_EXTENSION_NONE }; bool buses_reserved = true; @@ -2452,7 +2582,8 @@ qemuDomainAssignPCIAddresses(virDomainDefPtr def, qemuDomainHasPCIeRoot(def)) { virDomainDeviceInfo info = { .pciConnectFlags = (VIR_PCI_CONNECT_HOTPLUGGABLE | - VIR_PCI_CONNECT_TYPE_PCIE_DEVICE) + VIR_PCI_CONNECT_TYPE_PCIE_DEVICE), + .pciAddressExtFlags = VIR_PCI_ADDRESS_EXTENSION_NONE }; /* if there isn't an empty pcie-root-port, this will @@ -2969,6 +3100,8 @@ qemuDomainEnsurePCIAddress(virDomainObjPtr obj, qemuDomainFillDevicePCIConnectFlags(obj->def, dev, priv->qemuCaps, driver); + qemuDomainFillDevicePCIExtensionFlags(dev, priv->qemuCaps); + return virDomainPCIAddressEnsureAddr(priv->pciaddrs, info, info->pciConnectFlags); } -- 2.16.3

在 2018/6/2 下午10:15, Ján Tomko 写道: For hotplug case, qemuDomainEnsurePCIAddress() should be called. Then if we don't have QEMU_CAPS_DEVICE_ZPCI, we should not set zPCI extension flag. Except checking qemuCaps, I don't know there's any other way to check zPCI support. If we don't check zPCI cap, it would return true for those supported device types, and then zPCI device would be generated but qemu binary doesn't support that. For now though, we won't support these in future. Actually I don't know how to detect that via qemu interface. But anyway, we could easily switch on support if any of them is supported on S390.

在 2018/6/4 下午10:08, Ján Tomko 写道: OK. Yes, that is a problem. But there's no proper way to probe which device supports zPCI. There's a problem confusing me. To what degree we consider it is supported. For example, a pci device could be plugged to s390 phb but it can't be used in guest OS.

On Thu, May 24, 2018 at 02:24:29PM +0200, Xiao Feng Ren wrote: This includes S390 as well as S390X, do we care about that distinction? Jano

On Mon, Jun 04, 2018 at 01:57:04PM +0800, Yi Min Zhao wrote: On second thought, if this is the only way to get PCI to work on S390, this particular function should not be capability-based but always return true - it merely says whether to use pci.0 vs. pci for the 0th bus, not whether PCI is actually supported or not. Jano

From: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; The pci-root depends on zpci capability. So autogenerate pci-root if zpci exists. Signed-off-by: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com&gt; Reviewed-by: Stefan Zimmermann <stzi(a)linux.ibm.com&gt; Reviewed-by: Bjoern Walk <bwalk(a)linux.vnet.ibm.com&gt; --- src/qemu/qemu_domain.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index ee676a2789..05136540aa 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -3068,6 +3068,7 @@ qemuDomainDefAddDefaultDevices(virDomainDefPtr def, case VIR_ARCH_S390X: addDefaultUSB = false; addPanicDevice = true; + addPCIRoot = virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_ZPCI); break; case VIR_ARCH_SPARC: -- 2.16.3

在 2018/6/2 下午10:18, Ján Tomko 写道: If zPCI exists, there must be pci root. I'm not clear with your said. Could you please explain more?

On Mon, 4 Jun 2018 16:17:52 +0200 Ján Tomko <jtomko(a)redhat.com&gt; wrote: [warning, perspective of a non-libvirt qemu developer ahead] Sadly, zpci support in qemu took quite some time from "we've committed a prototype that works for some of us with hacked-up setups" to "should be usable". - The s390 phb device has been created unconditionally since 2.3. We tried to make it conditional later, but could not find a way to do so without breaking migration. - Compat machines for s390 only go back to 2.4, so this hopefully should not hurt migration. - The zpci device (which seems to be what the zpci capability refers to, if I read patch 2 correctly) has only existed since 2.7, so any qemu supporting the zpci device also has the s390 phb present, which seems to be in line with what this patch does. - You'll also need the zpci cpu feature bit set to have something that is actually usable by a guest. That was added in 2.10.

From: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; This commit adds hotplug support for PCI devices on S390 guests. There's no need to implement hot unplug for zPCI as QEMU implements an unplug callback which will unplug both PCI and zPCI device in a cascaded way. Currently, the following PCI devices are supported: virtio-blk-pci virtio-net-pci virtio-rng-pci virtio-input-host-pci virtio-keyboard-pci virtio-mouse-pci virtio-tablet-pci vfio-pci Shmem device SCSIVhost device Signed-off-by: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com&gt; Reviewed-by: Stefan Zimmermann <stzi(a)linux.ibm.com&gt; Reviewed-by: Bjoern Walk <bwalk(a)linux.vnet.ibm.com&gt; --- src/qemu/qemu_hotplug.c | 175 +++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 158 insertions(+), 17 deletions(-) diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index b35594be5f..c64b4fa722 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -193,6 +193,84 @@ qemuDomainDelDiskSrcTLSObject(virQEMUDriverPtr driver, } +static int +qemuDomainAttachZPCIDevice(qemuMonitorPtr mon, + virDomainDeviceInfoPtr info) +{ + int ret = -1; + char *devstr_zpci = NULL; + + if (!(devstr_zpci = qemuBuildZPCIDevStr(info))) + goto cleanup; + + if (qemuMonitorAddDevice(mon, devstr_zpci) < 0) + goto cleanup; + + ret = 0; + + cleanup: + VIR_FREE(devstr_zpci); + return ret; +} + + +static int +qemuDomainDetachZPCIDevice(qemuMonitorPtr mon, + virDomainDeviceInfoPtr info) +{ + char *zpciAlias = NULL; + int ret = -1; + + if (virAsprintf(&zpciAlias, "zpci%d", info->addr.pci.zpci->zpciuid) < 0) + goto cleanup; + + if (qemuMonitorDelDevice(mon, zpciAlias) < 0) + goto cleanup; + + ret = 0; + + cleanup: + VIR_FREE(zpciAlias); + return ret; +} + + +static int +qemuDomainAttachExtensionDevice(qemuMonitorPtr mon, + virDomainDeviceInfoPtr info, + virQEMUCapsPtr qemuCaps) +{ + if (qemuCheckDeviceIsZPCI(info)) { + if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_ZPCI)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("This QEMU doesn't support zpci devices")); + return -1; + } + return qemuDomainAttachZPCIDevice(mon, info); + } + + return 0; +} + + +static int +qemuDomainDetachExtensionDevice(qemuMonitorPtr mon, + virDomainDeviceInfoPtr info, + virQEMUCapsPtr qemuCaps) +{ + if (qemuCheckDeviceIsZPCI(info)) { + if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_ZPCI)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("This QEMU doesn't support zpci devices")); + return -1; + } + return qemuDomainDetachZPCIDevice(mon, info); + } + + return 0; +} + + static int qemuHotplugWaitForTrayEject(virQEMUDriverPtr driver, virDomainObjPtr vm, @@ -521,9 +599,16 @@ qemuDomainAttachDiskGeneric(virQEMUDriverPtr driver, goto exit_monitor; driveAdded = true; - if (qemuMonitorAddDevice(priv->mon, devstr) < 0) + if (qemuDomainAttachExtensionDevice(priv->mon, &disk->info, + priv->qemuCaps) < 0) goto exit_monitor; + if (qemuMonitorAddDevice(priv->mon, devstr) < 0) { + ignore_value(qemuDomainDetachExtensionDevice(priv->mon, &disk->info, + priv->qemuCaps)); + goto exit_monitor; + } + if (qemuDomainObjExitMonitor(driver, vm) < 0) { ret = -2; goto error; @@ -1088,17 +1173,19 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver, } if (qemuDomainIsS390CCW(vm->def) && - virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_CCW)) { - net->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW; - if (!(ccwaddrs = qemuDomainCCWAddrSetCreateFromDomain(vm->def))) - goto cleanup; - if (virDomainCCWAddressAssign(&net->info, ccwaddrs, - !net->info.addr.ccw.assigned) < 0) + net->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_PCI) { + if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_CCW)) { + net->info.type = VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW; + if (!(ccwaddrs = qemuDomainCCWAddrSetCreateFromDomain(vm->def))) + goto cleanup; + if (virDomainCCWAddressAssign(&net->info, ccwaddrs, + !net->info.addr.ccw.assigned) < 0) + goto cleanup; + } else if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_VIRTIO_S390)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("virtio-s390 net device cannot be hotplugged.")); goto cleanup; - } else if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_VIRTIO_S390)) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("virtio-s390 net device cannot be hotplugged.")); - goto cleanup; + } } else if (qemuDomainEnsurePCIAddress(vm, &dev, driver) < 0) { goto cleanup; } @@ -1158,7 +1245,17 @@ qemuDomainAttachNetDevice(virQEMUDriverPtr driver, goto try_remove; qemuDomainObjEnterMonitor(driver, vm); + + if (qemuDomainAttachExtensionDevice(priv->mon, &net->info, + priv->qemuCaps) < 0) { + ignore_value(qemuDomainObjExitMonitor(driver, vm)); + virDomainAuditNet(vm, NULL, net, "attach", false); + goto try_remove; + } + if (qemuMonitorAddDevice(priv->mon, nicstr) < 0) { + ignore_value(qemuDomainDetachExtensionDevice(priv->mon, &net->info, + priv->qemuCaps)); ignore_value(qemuDomainObjExitMonitor(driver, vm)); virDomainAuditNet(vm, NULL, net, "attach", false); goto try_remove; @@ -1374,8 +1471,17 @@ qemuDomainAttachHostPCIDevice(virQEMUDriverPtr driver, goto error; qemuDomainObjEnterMonitor(driver, vm); - ret = qemuMonitorAddDeviceWithFd(priv->mon, devstr, - configfd, configfd_name); + + if ((ret = qemuDomainAttachExtensionDevice(priv->mon, hostdev->info, + priv->qemuCaps)) < 0) + goto exit_monitor; + + if ((ret = qemuMonitorAddDeviceWithFd(priv->mon, devstr, + configfd, configfd_name)) < 0) + ignore_value(qemuDomainDetachExtensionDevice(priv->mon, hostdev->info, + priv->qemuCaps)); + + exit_monitor: if (qemuDomainObjExitMonitor(driver, vm) < 0) goto error; @@ -2052,8 +2158,15 @@ qemuDomainAttachRNGDevice(virQEMUDriverPtr driver, goto exit_monitor; objAdded = true; - if (qemuMonitorAddDevice(priv->mon, devstr) < 0) + if (qemuDomainAttachExtensionDevice(priv->mon, &rng->info, + priv->qemuCaps) < 0) + goto exit_monitor; + + if (qemuMonitorAddDevice(priv->mon, devstr) < 0) { + ignore_value(qemuDomainDetachExtensionDevice(priv->mon, &rng->info, + priv->qemuCaps)); goto exit_monitor; + } if (qemuDomainObjExitMonitor(driver, vm) < 0) { releaseaddr = false; @@ -2555,8 +2668,18 @@ qemuDomainAttachSCSIVHostDevice(virQEMUDriverPtr driver, qemuDomainObjEnterMonitor(driver, vm); - ret = qemuMonitorAddDeviceWithFd(priv->mon, devstr, vhostfd, vhostfdName); + if ((ret = qemuDomainAttachExtensionDevice(priv->mon, hostdev->info, + priv->qemuCaps)) < 0) + goto exit_monitor; + + if ((ret = qemuMonitorAddDeviceWithFd(priv->mon, devstr, vhostfd, + vhostfdName)) < 0) { + ignore_value(qemuDomainDetachExtensionDevice(priv->mon, hostdev->info, + priv->qemuCaps)); + goto exit_monitor; + } + exit_monitor: if (qemuDomainObjExitMonitor(driver, vm) < 0 || ret < 0) goto audit; @@ -2800,8 +2923,15 @@ qemuDomainAttachShmemDevice(virQEMUDriverPtr driver, release_backing = true; - if (qemuMonitorAddDevice(priv->mon, shmstr) < 0) + if (qemuDomainAttachExtensionDevice(priv->mon, &shmem->info, + priv->qemuCaps) < 0) + goto exit_monitor; + + if (qemuMonitorAddDevice(priv->mon, shmstr) < 0) { + ignore_value(qemuDomainDetachExtensionDevice(priv->mon, &shmem->info, + priv->qemuCaps)); goto exit_monitor; + } if (qemuDomainObjExitMonitor(driver, vm) < 0) { release_address = false; @@ -2974,8 +3104,19 @@ qemuDomainAttachInputDevice(virQEMUDriverPtr driver, goto cleanup; qemuDomainObjEnterMonitor(driver, vm); - if (qemuMonitorAddDevice(priv->mon, devstr) < 0) + + if (input->bus == VIR_DOMAIN_INPUT_BUS_VIRTIO) { + if (qemuDomainAttachExtensionDevice(priv->mon, &input->info, + priv->qemuCaps) < 0) + goto exit_monitor; + } + + if (qemuMonitorAddDevice(priv->mon, devstr) < 0) { + if (input->bus == VIR_DOMAIN_INPUT_BUS_VIRTIO) + ignore_value(qemuDomainDetachExtensionDevice(priv->mon, &input->info, + priv->qemuCaps)); goto exit_monitor; + } if (qemuDomainObjExitMonitor(driver, vm) < 0) { releaseaddr = false; -- 2.16.3

On Thursday, 24 May 2018 14:24:33 CEST Xiao Feng Ren wrote: This seems to be the "uint16" type already. This could be a new "uint32" type, changing the 0x prefix as non-optional (otherwise the value "10" can be both valid as decimal and hexadeciaml). VIR_FREE should be safe to use on a NULL pointer, so just call it directly without checking the type. Extra change. -- Pino Toscano

On 05/25/2018 07:05 AM, Pino Toscano wrote: My personal opinion - if numbers without a leading 0x are consistently not interpreted as hexadecimal, then there is no ambiguity and no confusion. If there's a leading 0x, then it is hexadecimal. No leading 0x, it's decimal. Period. But this code isn't checking for a NULL pointer. It's checking to see which member of the union is being used - there may be a different address type that uses the same region of memory as something that isn't a pointer, and calling VIR_FREE would lead to dereferencing a bad pointer.

From: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; This patch provides a caching mechanism for the device address extensions uid and fid on S390. For efficient sparse address allocation, we introduce two hash tables for uid/fid which hold the address set information per domain. Also in order to improve performance of searching available value, we introduce our own callbacks for the two hashtables. In this way, uid/fid is saved in hash key and hash value could be any non-NULL pointer due to no operation on hash value. That is also the reason why we don't introduce hash value free callback. Signed-off-by: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com&gt; Reviewed-by: Bjoern Walk <bwalk(a)linux.vnet.ibm.com&gt; --- src/conf/domain_addr.c | 79 ++++++++++++++++++++++++++++++++++++++++++ src/conf/domain_addr.h | 9 +++++ src/libvirt_private.syms | 1 + src/qemu/qemu_domain_address.c | 5 +++ 4 files changed, 94 insertions(+) diff --git a/src/conf/domain_addr.c b/src/conf/domain_addr.c index e685b9ccf7..37a3645c5d 100644 --- a/src/conf/domain_addr.c +++ b/src/conf/domain_addr.c @@ -27,11 +27,23 @@ #include "virlog.h" #include "virstring.h" #include "domain_addr.h" +#include "virhashcode.h" #define VIR_FROM_THIS VIR_FROM_DOMAIN VIR_LOG_INIT("conf.domain_addr"); +static void +virDomainPCIAddressSetExtensionFree(virDomainPCIAddressSetPtr addrs) +{ + if (!addrs || !addrs->zpciIds) + return; + + virHashFree(addrs->zpciIds->uids); + virHashFree(addrs->zpciIds->fids); + VIR_FREE(addrs->zpciIds); +} + virDomainPCIConnectFlags virDomainPCIControllerModelToConnectType(virDomainControllerModelPCI model) { @@ -741,6 +753,72 @@ virDomainPCIAddressReleaseAddr(virDomainPCIAddressSetPtr addrs, addrs->buses[addr->bus].slot[addr->slot].functions &= ~(1 << addr->function); } + +static uint32_t virZPCIAddrCode(const void *name, uint32_t seed) +{ + unsigned int value = *((unsigned int *)name); + return virHashCodeGen(&value, sizeof(value), seed); +} + + +static bool virZPCIAddrEqual(const void *namea, const void *nameb) +{ + return *((unsigned int *)namea) == *((unsigned int *)nameb); +} + + +static void *virZPCIAddrCopy(const void *name) +{ + unsigned int *copy; + + if (VIR_ALLOC(copy) < 0) + return NULL; + + *copy = *((unsigned int *)name); + return (void *)copy; +} + + +static void virZPCIAddrKeyFree(void *name) +{ + VIR_FREE(name); +} + + +int +virDomainPCIAddressSetExtensionAlloc(virDomainPCIAddressSetPtr addrs, + virDomainPCIAddressExtensionFlags extFlags) +{ + if (extFlags == VIR_PCI_ADDRESS_EXTENSION_ZPCI) { + if (addrs->zpciIds) + return 0; + + if (VIR_ALLOC(addrs->zpciIds) < 0) + return -1; + + if (!(addrs->zpciIds->uids = virHashCreateFull(10, NULL, + virZPCIAddrCode, + virZPCIAddrEqual, + virZPCIAddrCopy, + virZPCIAddrKeyFree))) + goto error; + + if (!(addrs->zpciIds->fids = virHashCreateFull(10, NULL, + virZPCIAddrCode, + virZPCIAddrEqual, + virZPCIAddrCopy, + virZPCIAddrKeyFree))) + goto error; + } + + return 0; + + error: + virDomainPCIAddressSetExtensionFree(addrs); + return -1; +} + + virDomainPCIAddressSetPtr virDomainPCIAddressSetAlloc(unsigned int nbuses) { @@ -767,6 +845,7 @@ virDomainPCIAddressSetFree(virDomainPCIAddressSetPtr addrs) if (!addrs) return; + virDomainPCIAddressSetExtensionFree(addrs); VIR_FREE(addrs->buses); VIR_FREE(addrs); } diff --git a/src/conf/domain_addr.h b/src/conf/domain_addr.h index 1d1837bd23..f95d56c0a0 100644 --- a/src/conf/domain_addr.h +++ b/src/conf/domain_addr.h @@ -116,6 +116,11 @@ typedef struct { } virDomainPCIAddressBus; typedef virDomainPCIAddressBus *virDomainPCIAddressBusPtr; +typedef struct { + virHashTablePtr uids, fids; +} virDomainZPCIAddressIds; +typedef virDomainZPCIAddressIds *virDomainZPCIAddressIdsPtr; + struct _virDomainPCIAddressSet { virDomainPCIAddressBus *buses; size_t nbuses; @@ -125,6 +130,7 @@ struct _virDomainPCIAddressSet { bool areMultipleRootsSupported; /* If true, the guest can use the pcie-to-pci-bridge controller */ bool isPCIeToPCIBridgeSupported; + virDomainZPCIAddressIdsPtr zpciIds; }; typedef struct _virDomainPCIAddressSet virDomainPCIAddressSet; typedef virDomainPCIAddressSet *virDomainPCIAddressSetPtr; @@ -132,6 +138,9 @@ typedef virDomainPCIAddressSet *virDomainPCIAddressSetPtr; char *virDomainPCIAddressAsString(virPCIDeviceAddressPtr addr) ATTRIBUTE_NONNULL(1); +int virDomainPCIAddressSetExtensionAlloc(virDomainPCIAddressSetPtr addrs, + virDomainPCIAddressExtensionFlags extFlags); + virDomainPCIAddressSetPtr virDomainPCIAddressSetAlloc(unsigned int nbuses); void virDomainPCIAddressSetFree(virDomainPCIAddressSetPtr addrs); diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index a97b7fe223..2be1f8788a 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -119,6 +119,7 @@ virDomainPCIAddressReserveAddr; virDomainPCIAddressReserveNextAddr; virDomainPCIAddressSetAllMulti; virDomainPCIAddressSetAlloc; +virDomainPCIAddressSetExtensionAlloc; virDomainPCIAddressSetFree; virDomainPCIAddressSlotInUse; virDomainPCIAddressValidate; diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c index adce399be6..392723d616 100644 --- a/src/qemu/qemu_domain_address.c +++ b/src/qemu/qemu_domain_address.c @@ -1498,6 +1498,11 @@ qemuDomainPCIAddressSetCreate(virDomainDefPtr def, addrs->dryRun = dryRun; + /* create zpci address set for s390 domain */ + if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_ZPCI) && + virDomainPCIAddressSetExtensionAlloc(addrs, VIR_PCI_ADDRESS_EXTENSION_ZPCI)) + goto error; + /* pSeries domains support multiple pci-root controllers */ if (qemuDomainIsPSeries(def)) addrs->areMultipleRootsSupported = true; -- 2.16.3

From: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; This patch adds new test cases for zPCI when 'uid' and 'fid' are defined with different conditions in XML. Signed-off-by: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com&gt; Reviewed-by: Bjoern Walk <bwalk(a)linux.ibm.com&gt; Reviewed-by: Stefan Zimmermann <stzi(a)linux.vnet.ibm.com&gt; --- tests/qemuxml2argvdata/disk-virtio-s390-zpci.args | 27 +++++++++ tests/qemuxml2argvdata/disk-virtio-s390-zpci.xml | 17 ++++++ .../hostdev-vfio-zpci-autogenerate.args | 24 ++++++++ .../hostdev-vfio-zpci-autogenerate.xml | 18 ++++++ .../hostdev-vfio-zpci-boundaries.args | 27 +++++++++ .../hostdev-vfio-zpci-boundaries.xml | 26 +++++++++ .../hostdev-vfio-zpci-multidomain-many.args | 38 ++++++++++++ .../hostdev-vfio-zpci-multidomain-many.xml | 67 ++++++++++++++++++++++ tests/qemuxml2argvdata/hostdev-vfio-zpci.args | 24 ++++++++ tests/qemuxml2argvdata/hostdev-vfio-zpci.xml | 19 ++++++ tests/qemuxml2argvtest.c | 21 +++++++ tests/qemuxml2xmloutdata/disk-virtio-s390-zpci.xml | 29 ++++++++++ tests/qemuxml2xmloutdata/hostdev-vfio-zpci.xml | 30 ++++++++++ tests/qemuxml2xmltest.c | 3 + 14 files changed, 370 insertions(+) create mode 100644 tests/qemuxml2argvdata/disk-virtio-s390-zpci.args create mode 100644 tests/qemuxml2argvdata/disk-virtio-s390-zpci.xml create mode 100644 tests/qemuxml2argvdata/hostdev-vfio-zpci-autogenerate.args create mode 100644 tests/qemuxml2argvdata/hostdev-vfio-zpci-autogenerate.xml create mode 100644 tests/qemuxml2argvdata/hostdev-vfio-zpci-boundaries.args create mode 100644 tests/qemuxml2argvdata/hostdev-vfio-zpci-boundaries.xml create mode 100644 tests/qemuxml2argvdata/hostdev-vfio-zpci-multidomain-many.args create mode 100644 tests/qemuxml2argvdata/hostdev-vfio-zpci-multidomain-many.xml create mode 100644 tests/qemuxml2argvdata/hostdev-vfio-zpci.args create mode 100644 tests/qemuxml2argvdata/hostdev-vfio-zpci.xml create mode 100644 tests/qemuxml2xmloutdata/disk-virtio-s390-zpci.xml create mode 100644 tests/qemuxml2xmloutdata/hostdev-vfio-zpci.xml diff --git a/tests/qemuxml2argvdata/disk-virtio-s390-zpci.args b/tests/qemuxml2argvdata/disk-virtio-s390-zpci.args new file mode 100644 index 0000000000..ffb5d1597e --- /dev/null +++ b/tests/qemuxml2argvdata/disk-virtio-s390-zpci.args @@ -0,0 +1,27 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu-system-s390x \ +-name QEMUGuest1 \ +-S \ +-machine s390-ccw-virtio,accel=tcg,usb=off,dump-guest-core=off \ +-m 214 \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-display none \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,\ +server,nowait \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-boot c \ +-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \ +-device zpci,uid=25,fid=31,target=virtio-disk0,id=zpci25 \ +-device virtio-blk-pci,bus=pci.0,addr=0x8,drive=drive-virtio-disk0,\ +id=virtio-disk0 \ +-device virtio-balloon-ccw,id=balloon0,devno=fe.0.0000 diff --git a/tests/qemuxml2argvdata/disk-virtio-s390-zpci.xml b/tests/qemuxml2argvdata/disk-virtio-s390-zpci.xml new file mode 100644 index 0000000000..7887b97b2c --- /dev/null +++ b/tests/qemuxml2argvdata/disk-virtio-s390-zpci.xml @@ -0,0 +1,17 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219136</memory> + <vcpu>1</vcpu> + <os> + <type arch='s390x' machine='s390-ccw-virtio'>hvm</type> + </os> + <devices> + <emulator>/usr/bin/qemu-system-s390x</emulator> + <disk type='block' device='disk'> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='virtio'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0' uid='0x0019' fid='0x0000001f'/> + </disk> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/hostdev-vfio-zpci-autogenerate.args b/tests/qemuxml2argvdata/hostdev-vfio-zpci-autogenerate.args new file mode 100644 index 0000000000..d5e10dbb0c --- /dev/null +++ b/tests/qemuxml2argvdata/hostdev-vfio-zpci-autogenerate.args @@ -0,0 +1,24 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu-system-s390x \ +-name QEMUGuest1 \ +-S \ +-machine s390-ccw-virtio,accel=tcg,usb=off,dump-guest-core=off \ +-m 214 \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-display none \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,\ +server,nowait \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-device zpci,uid=1,fid=0,target=hostdev0,id=zpci1 \ +-device vfio-pci,host=00:00.0,id=hostdev0,bus=pci.0,addr=0x1 \ +-device virtio-balloon-ccw,id=balloon0,devno=fe.0.0000 diff --git a/tests/qemuxml2argvdata/hostdev-vfio-zpci-autogenerate.xml b/tests/qemuxml2argvdata/hostdev-vfio-zpci-autogenerate.xml new file mode 100644 index 0000000000..36161006ab --- /dev/null +++ b/tests/qemuxml2argvdata/hostdev-vfio-zpci-autogenerate.xml @@ -0,0 +1,18 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219100</memory> + <os> + <type arch='s390x' machine='s390-ccw-virtio'>hvm</type> + </os> + <devices> + <emulator>/usr/bin/qemu-system-s390x</emulator> + <hostdev mode='subsystem' type='pci'> + <driver name='vfio'/> + <source> + <address domain='0x0000' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci'/> + </hostdev> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/hostdev-vfio-zpci-boundaries.args b/tests/qemuxml2argvdata/hostdev-vfio-zpci-boundaries.args new file mode 100644 index 0000000000..e296bf7792 --- /dev/null +++ b/tests/qemuxml2argvdata/hostdev-vfio-zpci-boundaries.args @@ -0,0 +1,27 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu-system-s390x \ +-name QEMUGuest1 \ +-S \ +-machine s390-ccw-virtio,accel=tcg,usb=off,dump-guest-core=off \ +-m 214 \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-display none \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,\ +server,nowait \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-device pci-bridge,chassis_nr=1,id=pci.1,bus=pci.0,addr=0x1 \ +-device zpci,uid=65535,fid=4294967295,target=hostdev0,id=zpci65535 \ +-device vfio-pci,host=ffff:00:00.0,id=hostdev0,bus=pci.1,addr=0x1f \ +-device zpci,uid=1,fid=0,target=hostdev1,id=zpci1 \ +-device vfio-pci,host=00:00.0,id=hostdev1,bus=pci.0,addr=0x2 \ +-device virtio-balloon-ccw,id=balloon0,devno=fe.0.0000 diff --git a/tests/qemuxml2argvdata/hostdev-vfio-zpci-boundaries.xml b/tests/qemuxml2argvdata/hostdev-vfio-zpci-boundaries.xml new file mode 100644 index 0000000000..779eb12ac2 --- /dev/null +++ b/tests/qemuxml2argvdata/hostdev-vfio-zpci-boundaries.xml @@ -0,0 +1,26 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219100</memory> + <os> + <type arch='s390x' machine='s390-ccw-virtio'>hvm</type> + </os> + <devices> + <emulator>/usr/bin/qemu-system-s390x</emulator> + <controller type='pci' index='0' model='pci-root'/> + <hostdev mode='subsystem' type='pci'> + <driver name='vfio'/> + <source> + <address domain='0xffff' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci' domain='0x0000' bus='0x01' slot='0x1f' function='0x0' fid='0xffffffff' uid='0xffff'/> + </hostdev> + <hostdev mode='subsystem' type='pci'> + <driver name='vfio'/> + <source> + <address domain='0x0000' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci' fid='0x00000000' uid='0x0001'/> + </hostdev> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/hostdev-vfio-zpci-multidomain-many.args b/tests/qemuxml2argvdata/hostdev-vfio-zpci-multidomain-many.args new file mode 100644 index 0000000000..e703f8b2e0 --- /dev/null +++ b/tests/qemuxml2argvdata/hostdev-vfio-zpci-multidomain-many.args @@ -0,0 +1,38 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu-system-s390x \ +-name QEMUGuest1 \ +-S \ +-machine s390-ccw-virtio,accel=tcg,usb=off,dump-guest-core=off \ +-m 214 \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-display none \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,\ +server,nowait \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-device zpci,uid=35,fid=63,target=hostdev0,id=zpci35 \ +-device vfio-pci,host=0001:00:00.0,id=hostdev0,bus=pci.0,addr=0x3 \ +-device zpci,uid=53,fid=104,target=hostdev1,id=zpci53 \ +-device vfio-pci,host=0002:00:00.0,id=hostdev1,bus=pci.0,addr=0x1 \ +-device zpci,uid=1,fid=0,target=hostdev2,id=zpci1 \ +-device vfio-pci,host=0003:00:00.0,id=hostdev2,bus=pci.0,addr=0x2 \ +-device zpci,uid=2,fid=1,target=hostdev3,id=zpci2 \ +-device vfio-pci,host=0004:00:00.0,id=hostdev3,bus=pci.0,addr=0x5 \ +-device zpci,uid=83,fid=2,target=hostdev4,id=zpci83 \ +-device vfio-pci,host=0005:00:00.0,id=hostdev4,bus=pci.0,addr=0x7 \ +-device zpci,uid=3,fid=114,target=hostdev5,id=zpci3 \ +-device vfio-pci,host=0006:00:00.0,id=hostdev5,bus=pci.0,addr=0x9 \ +-device zpci,uid=23,fid=3,target=hostdev6,id=zpci23 \ +-device vfio-pci,host=0007:00:00.0,id=hostdev6,bus=pci.0,addr=0x4 \ +-device zpci,uid=4,fid=40,target=hostdev7,id=zpci4 \ +-device vfio-pci,host=0008:00:00.0,id=hostdev7,bus=pci.0,addr=0x6 \ +-device virtio-balloon-ccw,id=balloon0,devno=fe.0.0000 diff --git a/tests/qemuxml2argvdata/hostdev-vfio-zpci-multidomain-many.xml b/tests/qemuxml2argvdata/hostdev-vfio-zpci-multidomain-many.xml new file mode 100644 index 0000000000..e69714fc9c --- /dev/null +++ b/tests/qemuxml2argvdata/hostdev-vfio-zpci-multidomain-many.xml @@ -0,0 +1,67 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219100</memory> + <os> + <type arch='s390x' machine='s390-ccw-virtio'>hvm</type> + </os> + <devices> + <emulator>/usr/bin/qemu-system-s390x</emulator> + <controller type='pci' index='0' model='pci-root'/> + <hostdev mode='subsystem' type='pci'> + <driver name='vfio'/> + <source> + <address domain='0x0001' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0' uid='0x0023' fid='0x0000003f'/> + </hostdev> + <hostdev mode='subsystem' type='pci'> + <driver name='vfio'/> + <source> + <address domain='0x0002' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci' uid='0x0035' fid='0x00000068'/> + </hostdev> + <hostdev mode='subsystem' type='pci'> + <driver name='vfio'/> + <source> + <address domain='0x0003' bus='0x00' slot='0x00' function='0x0'/> + </source> + </hostdev> + <hostdev mode='subsystem' type='pci'> + <driver name='vfio'/> + <source> + <address domain='0x0004' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> + </hostdev> + <hostdev mode='subsystem' type='pci'> + <driver name='vfio'/> + <source> + <address domain='0x0005' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0' uid='0x0053'/> + </hostdev> + <hostdev mode='subsystem' type='pci'> + <driver name='vfio'/> + <source> + <address domain='0x0006' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0' fid='0x00000072'/> + </hostdev> + <hostdev mode='subsystem' type='pci'> + <driver name='vfio'/> + <source> + <address domain='0x0007' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci' uid='0x0017'/> + </hostdev> + <hostdev mode='subsystem' type='pci'> + <driver name='vfio'/> + <source> + <address domain='0x0008' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci' fid='0x00000028'/> + </hostdev> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/hostdev-vfio-zpci.args b/tests/qemuxml2argvdata/hostdev-vfio-zpci.args new file mode 100644 index 0000000000..1f9f1c688a --- /dev/null +++ b/tests/qemuxml2argvdata/hostdev-vfio-zpci.args @@ -0,0 +1,24 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu-system-s390x \ +-name QEMUGuest1 \ +-S \ +-machine s390-ccw-virtio,accel=tcg,usb=off,dump-guest-core=off \ +-m 214 \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-display none \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,\ +server,nowait \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-device zpci,uid=25,fid=31,target=hostdev0,id=zpci25 \ +-device vfio-pci,host=00:00.0,id=hostdev0,bus=pci.0,addr=0x8 \ +-device virtio-balloon-ccw,id=balloon0,devno=fe.0.0000 diff --git a/tests/qemuxml2argvdata/hostdev-vfio-zpci.xml b/tests/qemuxml2argvdata/hostdev-vfio-zpci.xml new file mode 100644 index 0000000000..cde333e220 --- /dev/null +++ b/tests/qemuxml2argvdata/hostdev-vfio-zpci.xml @@ -0,0 +1,19 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory>219100</memory> + <os> + <type arch='s390x' machine='s390-ccw-virtio'>hvm</type> + </os> + <devices> + <emulator>/usr/bin/qemu-system-s390x</emulator> + <controller type='pci' index='0' model='pci-root'/> + <hostdev mode='subsystem' type='pci' managed='no'> + <driver name='vfio'/> + <source> + <address domain='0x0000' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0' uid='0x0019' fid='0x0000001f'/> + </hostdev> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 1d023129ac..80cfec0714 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -976,6 +976,8 @@ mymain(void) QEMU_CAPS_CCW, QEMU_CAPS_VIRTIO_S390); DO_TEST("disk-virtio-scsi-ccw", QEMU_CAPS_VIRTIO_SCSI, QEMU_CAPS_CCW, QEMU_CAPS_VIRTIO_S390); + DO_TEST("disk-virtio-s390-zpci", QEMU_CAPS_DEVICE_ZPCI, + QEMU_CAPS_CCW, QEMU_CAPS_VIRTIO_S390); DO_TEST("disk-order", QEMU_CAPS_DRIVE_BOOT, QEMU_CAPS_VIRTIO_BLK_SCSI); DO_TEST("disk-virtio-drive-queues", @@ -1542,6 +1544,25 @@ mymain(void) QEMU_CAPS_DEVICE_VFIO_PCI); DO_TEST_PARSE_ERROR("hostdev-mdev-invalid-target-address", QEMU_CAPS_DEVICE_VFIO_PCI); + DO_TEST("hostdev-vfio-zpci", + QEMU_CAPS_BOOTINDEX, QEMU_CAPS_CCW, + QEMU_CAPS_VIRTIO_S390, QEMU_CAPS_DEVICE_VFIO_PCI, + QEMU_CAPS_DEVICE_ZPCI); + DO_TEST("hostdev-vfio-zpci-multidomain-many", + QEMU_CAPS_BOOTINDEX, QEMU_CAPS_VIRTIO_S390, + QEMU_CAPS_CCW, QEMU_CAPS_DEVICE_PCI_BRIDGE, + QEMU_CAPS_DEVICE_VFIO_PCI, QEMU_CAPS_DEVICE_ZPCI); + DO_TEST("hostdev-vfio-zpci-autogenerate", + QEMU_CAPS_BOOTINDEX, QEMU_CAPS_VIRTIO_S390, + QEMU_CAPS_CCW, QEMU_CAPS_DEVICE_VFIO_PCI, + QEMU_CAPS_DEVICE_ZPCI); + DO_TEST("hostdev-vfio-zpci-boundaries", + QEMU_CAPS_BOOTINDEX, QEMU_CAPS_VIRTIO_S390, + QEMU_CAPS_CCW, QEMU_CAPS_DEVICE_PCI_BRIDGE, + QEMU_CAPS_DEVICE_VFIO_PCI, QEMU_CAPS_DEVICE_ZPCI); + DO_TEST_FAILURE("hostdev-vfio-zpci", + QEMU_CAPS_BOOTINDEX, QEMU_CAPS_VIRTIO_S390, + QEMU_CAPS_CCW, QEMU_CAPS_DEVICE_VFIO_PCI); DO_TEST("pci-rom", NONE); DO_TEST("pci-rom-disabled", NONE); DO_TEST("pci-rom-disabled-invalid", NONE); diff --git a/tests/qemuxml2xmloutdata/disk-virtio-s390-zpci.xml b/tests/qemuxml2xmloutdata/disk-virtio-s390-zpci.xml new file mode 100644 index 0000000000..2e658807e9 --- /dev/null +++ b/tests/qemuxml2xmloutdata/disk-virtio-s390-zpci.xml @@ -0,0 +1,29 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='s390x' machine='s390-ccw-virtio'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu-system-s390x</emulator> + <disk type='block' device='disk'> + <driver name='qemu' type='raw'/> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='virtio'/> + <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0' uid='0x0019' fid='0x0000001f'/> + </disk> + <controller type='pci' index='0' model='pci-root'/> + <memballoon model='virtio'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' uid='0x0001' fid='0x00000000'/> + </memballoon> + <panic model='s390'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmloutdata/hostdev-vfio-zpci.xml b/tests/qemuxml2xmloutdata/hostdev-vfio-zpci.xml new file mode 100644 index 0000000000..1f48c44e30 --- /dev/null +++ b/tests/qemuxml2xmloutdata/hostdev-vfio-zpci.xml @@ -0,0 +1,30 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219100</memory> + <currentMemory unit='KiB'>219100</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='s390x' machine='s390-ccw-virtio'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu-system-s390x</emulator> + <controller type='pci' index='0' model='pci-root'/> + <hostdev mode='subsystem' type='pci' managed='no'> + <driver name='vfio'/> + <source> + <address domain='0x0000' bus='0x00' slot='0x00' function='0x0'/> + </source> + <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0' uid='0x0019' fid='0x0000001f'/> + </hostdev> + <memballoon model='virtio'> + <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0000'/> + </memballoon> + <panic model='s390'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index e31d8212fe..2c7f52a17b 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -395,6 +395,8 @@ mymain(void) QEMU_CAPS_VIRTIO_SCSI); DO_TEST("disk-virtio-scsi-ioeventfd", QEMU_CAPS_VIRTIO_SCSI); + DO_TEST("disk-virtio-s390-zpci", + QEMU_CAPS_DEVICE_ZPCI); DO_TEST("disk-scsi-megasas", QEMU_CAPS_SCSI_MEGASAS); DO_TEST("disk-scsi-mptsas1068", @@ -474,6 +476,7 @@ mymain(void) DO_TEST("hostdev-usb-address", NONE); DO_TEST("hostdev-pci-address", NONE); DO_TEST("hostdev-vfio", NONE); + DO_TEST("hostdev-vfio-zpci", QEMU_CAPS_DEVICE_ZPCI, QEMU_CAPS_CCW); DO_TEST("hostdev-mdev-precreated", NONE); DO_TEST("pci-rom", NONE); DO_TEST("pci-rom-disabled", NONE); -- 2.16.3

From: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; Signed-off-by: Yi Min Zhao <zyimin(a)linux.ibm.com&gt; Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com&gt; Reviewed-by: Stefan Zimmermann <stzi(a)linux.ibm.com&gt; --- docs/news.xml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/docs/news.xml b/docs/news.xml index 76d1613d35..cfd355778a 100644 --- a/docs/news.xml +++ b/docs/news.xml @@ -64,6 +64,17 @@ TLS environment which is setup for the migration connection. </description> </change> + <change> + <summary> + qemu: Added support for PCI device passthrough on S390 + </summary> + <description> + The new zPCI attributes uid (user-defined identifier) + and fid (PCI function identifier) of the S390 platform + extend the PCI device address to support the PCI + passthrough on S390. + </description> + </change> </section> <section title="Improvements"> <change> -- 2.16.3