Re: [libvirt] [PATCHv2 2/3] qemu: add support for hv_crash feature as a panic device

XML: <devices> <panic model='hyperv'/> </devices> QEMU command line: qemu -cpu <cpu_model>,hv_crash --- src/qemu/qemu_command.c | 48 ++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 42 insertions(+), 6 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 792ada3..6ad4240 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -7623,6 +7623,16 @@ qemuBuildCpuArgStr(virQEMUDriverPtr driver, } } + if (def->panic && + def->panic->model == VIR_DOMAIN_PANIC_MODEL_HYPERV) { + if (!have_cpu) { + virBufferAdd(&buf, default_model, -1); + have_cpu = true; + } + + virBufferAddLit(&buf, ",hv_crash"); + } + if (def->features[VIR_DOMAIN_FEATURE_KVM] == VIR_TRISTATE_SWITCH_ON) { if (!have_cpu) { virBufferAdd(&buf, default_model, -1); @@ -11150,17 +11160,36 @@ qemuBuildCommandLine(virConnectPtr conn, } if (def->panic) { - if (ARCH_IS_PPC64(def->os.arch) && STRPREFIX(def->os.machine, "pseries")) { - /* For pSeries guests, the firmware provides the same - * functionality as the pvpanic device. The address - * cannot be configured by the user */ + switch (def->panic->model) {

+ case VIR_DOMAIN_PANIC_MODEL_PSERIES: + if (ARCH_IS_PPC64(def->os.arch) && STRPREFIX(def->os.machine, "pseries")) { + /* For pSeries guests, the firmware provides the same + * functionality as the pvpanic device. The address + * cannot be configured by the user */ + if (def->panic->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("setting the panic device address is not " + "supported for model 'pseries'")); + goto error; + } + } else { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("Only pSeries guests support panic device " + "with model 'pseries'")); + goto error; + } + break;

+ case VIR_DOMAIN_PANIC_MODEL_HYPERV: + /* Panic with model 'hyperv' is not a device, it should + * be configured in cpu commandline.*/ if (def->panic->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("setting the panic device address is not " - "supported for pSeries guests")); + "supported for model 'hyperv'")); goto error; } - } else { + break; + default:

if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_PANIC)) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("the QEMU binary does not support the " @@ -12534,6 +12563,13 @@ qemuParseCommandLineCPU(virDomainDefPtr dom, if (virCPUDefAddFeature(cpu, feature, policy) < 0) goto cleanup; } + } else if (STREQ(tokens[i], "hv_crash")) { + virDomainPanicDefPtr panic; + if (VIR_ALLOC(panic) < 0) + goto cleanup; + + panic->model = VIR_DOMAIN_PANIC_MODEL_HYPERV; + dom->panic = panic; } else if (STRPREFIX(tokens[i], "hv_")) { const char *token = tokens[i] + 3; /* "hv_" */ const char *feature, *value;