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Wed, 06 Jun 2018 17:51:28 +0000 (UTC) X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZohoMail: RDKM_2 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" The API can be used outside the libvirt to get the launch security information. When SEV is enabled, the API can be used to get the measurement of the launch process. Signed-off-by: Brijesh Singh Reviewed-by: Erik Skultety --- include/libvirt/libvirt-domain.h | 17 ++++++++++++++ src/driver-hypervisor.h | 8 +++++++ src/libvirt-domain.c | 48 ++++++++++++++++++++++++++++++++++++= ++++ src/libvirt_public.syms | 1 + 4 files changed, 74 insertions(+) diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-dom= ain.h index da773b7..6a3d73f 100644 --- a/include/libvirt/libvirt-domain.h +++ b/include/libvirt/libvirt-domain.h @@ -4767,4 +4767,21 @@ int virDomainSetLifecycleAction(virDomainPtr domain, unsigned int action, unsigned int flags); =20 +/** + * Launch Security API + */ + +/** + * VIR_DOMAIN_LAUNCH_SECURITY_SEV_MEASUREMENT: + * + * Macro represents the launch measurement of the SEV guest, + * as VIR_TYPED_PARAM_STRING. + */ +#define VIR_DOMAIN_LAUNCH_SECURITY_SEV_MEASUREMENT "sev-measurement" + +int virDomainGetLaunchSecurityInfo(virDomainPtr domain, + virTypedParameterPtr *params, + int *nparams, + unsigned int flags); + #endif /* __VIR_LIBVIRT_DOMAIN_H__ */ diff --git a/src/driver-hypervisor.h b/src/driver-hypervisor.h index c50d2a0..eef31eb 100644 --- a/src/driver-hypervisor.h +++ b/src/driver-hypervisor.h @@ -1315,6 +1315,13 @@ typedef int int *nparams, unsigned int flags); =20 +typedef int +(*virDrvDomainGetLaunchSecurityInfo)(virDomainPtr domain, + virTypedParameterPtr *params, + int *nparams, + unsigned int flags); + + typedef struct _virHypervisorDriver virHypervisorDriver; typedef virHypervisorDriver *virHypervisorDriverPtr; =20 @@ -1564,6 +1571,7 @@ struct _virHypervisorDriver { virDrvConnectCompareHypervisorCPU connectCompareHypervisorCPU; virDrvConnectBaselineHypervisorCPU connectBaselineHypervisorCPU; virDrvNodeGetSEVInfo nodeGetSEVInfo; + virDrvDomainGetLaunchSecurityInfo domainGetLaunchSecurityInfo; }; =20 =20 diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c index d44b553..dcfc7d4 100644 --- a/src/libvirt-domain.c +++ b/src/libvirt-domain.c @@ -12154,3 +12154,51 @@ int virDomainSetLifecycleAction(virDomainPtr domai= n, virDispatchError(domain->conn); return -1; } + +/** + * virDomainGetLaunchSecurityInfo: + * @domain: a domain object + * @params: where to store security info + * @nparams: number of items in @params + * @flags: currently used, set to 0. + * + * Get the launch security info. In case of the SEV guest, this will + * return the launch measurement. + * + * Returns -1 in case of failure, 0 in case of success. + */ +int virDomainGetLaunchSecurityInfo(virDomainPtr domain, + virTypedParameterPtr *params, + int *nparams, + unsigned int flags) +{ + virConnectPtr conn =3D domain->conn; + + VIR_DOMAIN_DEBUG(domain, "params=3D%p, nparams=3D%p flags=3D0x%x", + params, nparams, flags); + + virResetLastError(); + + virCheckDomainReturn(domain, -1); + virCheckNonNullArgGoto(params, error); + virCheckNonNullArgGoto(nparams, error); + virCheckReadOnlyGoto(conn->flags, error); + + if (VIR_DRV_SUPPORTS_FEATURE(domain->conn->driver, domain->conn, + VIR_DRV_FEATURE_TYPED_PARAM_STRING)) + flags |=3D VIR_TYPED_PARAM_STRING_OKAY; + + if (conn->driver->domainGetLaunchSecurityInfo) { + int ret; + ret =3D conn->driver->domainGetLaunchSecurityInfo(domain, params, + nparams, flags); + if (ret < 0) + goto error; + return ret; + } + virReportUnsupportedError(); + + error: + virDispatchError(domain->conn); + return -1; +} diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms index 524d5fd..3bf3c3f 100644 --- a/src/libvirt_public.syms +++ b/src/libvirt_public.syms @@ -797,6 +797,7 @@ LIBVIRT_4.5.0 { virGetLastErrorCode; virGetLastErrorDomain; virNodeGetSEVInfo; + virDomainGetLaunchSecurityInfo; } LIBVIRT_4.4.0; =20 # .... define new API here using predicted next version number .... --=20 2.7.4 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list