[libvirt] [PATCH v9 05/11] qemu: Implement the driver backend for virNodeGetSEVInfo()

Signed-off-by: Brijesh Singh <&lt;brijesh.singh(a)amd.com&gt;&gt; --- src/qemu/qemu_capabilities.c | 7 ++++ src/qemu/qemu_capabilities.h | 4 +++ src/qemu/qemu_driver.c | 82 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 93 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 1803ed9..7a245a5 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -2094,6 +2094,13 @@ virQEMUCapsSetSEVCapabilities(virQEMUCapsPtr qemuCaps, } +virSEVCapabilityPtr +virQEMUCapsGetSEVCapabilities(virQEMUCapsPtr qemuCaps) +{ + return qemuCaps->sevCapabilities; +} + + static int virQEMUCapsProbeQMPCommands(virQEMUCapsPtr qemuCaps, qemuMonitorPtr mon) diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index f80da91..3519a19 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -618,4 +618,8 @@ bool virQEMUCapsGuestIsNative(virArch host, bool virQEMUCapsCPUFilterFeatures(const char *name, void *opaque); + +virSEVCapabilityPtr +virQEMUCapsGetSEVCapabilities(virQEMUCapsPtr qemuCaps); + #endif /* __QEMU_CAPABILITIES_H__*/ diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 2876987..264c47d 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -21424,6 +21424,87 @@ qemuDomainSetLifecycleAction(virDomainPtr dom, } +static int +qemuGetSEVInfoToParams(virQEMUCapsPtr qemuCaps, + virTypedParameterPtr *params, + int *nparams, + unsigned int flags) +{ + int maxpar = 0; + int n = 0; + virSEVCapabilityPtr sev = virQEMUCapsGetSEVCapabilities(qemuCaps); + virTypedParameterPtr sevParams = NULL; + + virCheckFlags(VIR_TYPED_PARAM_STRING_OKAY, -1); + + if (virTypedParamsAddString(&sevParams, &n, &maxpar, + VIR_NODE_SEV_PDH, sev->pdh) < 0) + return -1; + + if (virTypedParamsAddString(&sevParams, &n, &maxpar, + VIR_NODE_SEV_CERT_CHAIN, sev->cert_chain) < 0) + goto cleanup; + + if (virTypedParamsAddUInt(&sevParams, &n, &maxpar, + VIR_NODE_SEV_CBITPOS, sev->cbitpos) < 0) + goto cleanup; + + if (virTypedParamsAddUInt(&sevParams, &n, &maxpar, + VIR_NODE_SEV_REDUCED_PHYS_BITS, + sev->reduced_phys_bits) < 0) + goto cleanup; + + VIR_STEAL_PTR(*params, sevParams); + *nparams = n; + return 0; + + cleanup: + virTypedParamsFree(sevParams, n); + return -1; +} + + +static int +qemuNodeGetSEVInfo(virConnectPtr conn, + virTypedParameterPtr *params, + int *nparams, + unsigned int flags) +{ + virQEMUDriverPtr driver = conn->privateData; + virCapsPtr caps = NULL; + virQEMUCapsPtr qemucaps = NULL; + int ret = -1; + + if (virNodeGetSevInfoEnsureACL(conn) < 0) + return ret; + + if (!(caps = virQEMUDriverGetCapabilities(driver, true))) + return ret; + + qemucaps = virQEMUCapsCacheLookupByArch(driver->qemuCapsCache, + virArchFromHost()); + if (!qemucaps) + goto cleanup; + + if (!virQEMUCapsGet(qemucaps, QEMU_CAPS_SEV_GUEST)) { + virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("QEMU does not support SEV guest")); + goto cleanup; + } + + if (qemuGetSEVInfoToParams(qemucaps, params, nparams, flags) < 0) + goto cleanup; + + ret = 0; + + cleanup: + virObjectUnref(qemucaps); + virObjectUnref(caps); + + return ret; +} + + static virHypervisorDriver qemuHypervisorDriver = { .name = QEMU_DRIVER_NAME, .connectURIProbe = qemuConnectURIProbe, @@ -21647,6 +21728,7 @@ static virHypervisorDriver qemuHypervisorDriver = { .domainSetLifecycleAction = qemuDomainSetLifecycleAction, /* 3.9.0 */ .connectCompareHypervisorCPU = qemuConnectCompareHypervisorCPU, /* 4.4.0 */ .connectBaselineHypervisorCPU = qemuConnectBaselineHypervisorCPU, /* 4.4.0 */ + .nodeGetSEVInfo = qemuNodeGetSEVInfo, /* 4.5.0 */ }; -- 2.7.4