[libvirt] Re: [PATCH 10/12] Implement SCSI controller hotplug/unplug for QEMU

From: Wolfgang Mauerer <wolfgang.mauerer(a)siemens.com&gt; This patch allows for explicit hotplug/unplug of SCSI controllers. Ordinarily this is not required, since QEMU/libvirt will attach a new SCSI controller whenever one is required. Allowing explicit hotplug of controllers though, enables the caller to specify a static PCI address, instead of auto-assigning the next available PCI slot. Or it will when we have static PCI addressing. This patch is derived from Wolfgang Mauerer's disk controller patch series. * src/qemu/qemu_driver.c: Support hotplug & unplug of SCSI controllers * src/qemu/qemu_monitor.c, src/qemu/qemu_monitor.h, src/qemu/qemu_monitor_json.c, src/qemu/qemu_monitor_json.h, src/qemu/qemu_monitor_text.c, src/qemu/qemu_monitor_text.h: Add new API for attaching PCI SCSI controllers

+int qemuMonitorTextAttachPCIDiskController(qemuMonitorPtr mon, + const char *bus, + virDomainDevicePCIAddress *guestAddr) +{ + char *cmd = NULL; + char *reply = NULL; + int tryOldSyntax = 0; + int ret = -1; + +try_command: + if (virAsprintf(&cmd, "pci_add %s storage if=%s", + (tryOldSyntax ? "0": "pci_addr=auto"), bus) < 0) { + virReportOOMError(NULL); + goto cleanup; + }