Since v4.2-rc0, QEMU introduced a builtin rng backend that uses getrandom() syscall to generate random. Add it to libvirt with the backend model 'builtin'. https://bugzilla.redhat.com/show_bug.cgi?id=1785091 Signed-off-by: Han Han <hhan@xxxxxxxxxx> --- src/conf/domain_audit.c | 2 ++ src/conf/domain_conf.c | 9 +++++++++ src/conf/domain_conf.h | 1 + src/qemu/qemu_command.c | 15 +++++++++++++++ src/qemu/qemu_domain.c | 3 +++ 5 files changed, 30 insertions(+) diff --git a/src/conf/domain_audit.c b/src/conf/domain_audit.c index fdccc585..138f2701 100644 --- a/src/conf/domain_audit.c +++ b/src/conf/domain_audit.c @@ -227,6 +227,7 @@ virDomainAuditRNG(virDomainObjPtr vm, newsrcpath = virDomainChrSourceDefGetPath(newDef->source.chardev); break; + case VIR_DOMAIN_RNG_BACKEND_BUILTIN: case VIR_DOMAIN_RNG_BACKEND_LAST: break; } @@ -242,6 +243,7 @@ virDomainAuditRNG(virDomainObjPtr vm, oldsrcpath = virDomainChrSourceDefGetPath(oldDef->source.chardev); break; + case VIR_DOMAIN_RNG_BACKEND_BUILTIN: case VIR_DOMAIN_RNG_BACKEND_LAST: break; } diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index afa072e1..76599806 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -1112,6 +1112,7 @@ VIR_ENUM_IMPL(virDomainRNGBackend, VIR_DOMAIN_RNG_BACKEND_LAST, "random", "egd", + "builtin", ); VIR_ENUM_IMPL(virDomainTPMModel, @@ -14821,6 +14822,7 @@ virDomainRNGDefParseXML(virDomainXMLOptionPtr xmlopt, goto error; break; + case VIR_DOMAIN_RNG_BACKEND_BUILTIN: case VIR_DOMAIN_RNG_BACKEND_LAST: break; } @@ -17764,6 +17766,7 @@ virDomainRNGFind(virDomainDefPtr def, continue; break; + case VIR_DOMAIN_RNG_BACKEND_BUILTIN: case VIR_DOMAIN_RNG_BACKEND_LAST: break; } @@ -26443,6 +26446,11 @@ virDomainRNGDefFormat(virBufferPtr buf, return -1; virBufferAdjustIndent(buf, -2); virBufferAddLit(buf, "</backend>\n"); + break; + + case VIR_DOMAIN_RNG_BACKEND_BUILTIN: + virBufferAddLit(buf, "/>\n"); + break; case VIR_DOMAIN_RNG_BACKEND_LAST: break; @@ -26474,6 +26482,7 @@ virDomainRNGDefFree(virDomainRNGDefPtr def) case VIR_DOMAIN_RNG_BACKEND_EGD: virObjectUnref(def->source.chardev); break; + case VIR_DOMAIN_RNG_BACKEND_BUILTIN: case VIR_DOMAIN_RNG_BACKEND_LAST: break; } diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index e012975f..ac1db682 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -2103,6 +2103,7 @@ typedef enum { typedef enum { VIR_DOMAIN_RNG_BACKEND_RANDOM, VIR_DOMAIN_RNG_BACKEND_EGD, + VIR_DOMAIN_RNG_BACKEND_BUILTIN, VIR_DOMAIN_RNG_BACKEND_LAST } virDomainRNGBackend; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index a8137b3a..d372d289 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -5579,6 +5579,7 @@ qemuBuildRNGBackendChrdevStr(virLogManagerPtr logManager, switch ((virDomainRNGBackend) rng->backend) { case VIR_DOMAIN_RNG_BACKEND_RANDOM: + case VIR_DOMAIN_RNG_BACKEND_BUILTIN: case VIR_DOMAIN_RNG_BACKEND_LAST: /* no chardev backend is needed */ return 0; @@ -5640,6 +5641,20 @@ qemuBuildRNGBackendProps(virDomainRNGDefPtr rng, break; + case VIR_DOMAIN_RNG_BACKEND_BUILTIN: + if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_RNG_BUILTIN)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("this qemu doesn't support the rng-builtin " + "backend")); + return -1; + } + + if (qemuMonitorCreateObjectProps(props, "rng-builtin", objAlias, + NULL) < 0) + return -1; + + break; + case VIR_DOMAIN_RNG_BACKEND_LAST: virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("unknown rng-random backend")); diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index ff87720f..19636e6f 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -14807,6 +14807,7 @@ qemuDomainSetupRNG(virQEMUDriverConfigPtr cfg G_GNUC_UNUSED, return -1; case VIR_DOMAIN_RNG_BACKEND_EGD: + case VIR_DOMAIN_RNG_BACKEND_BUILTIN: case VIR_DOMAIN_RNG_BACKEND_LAST: /* nada */ break; @@ -15786,6 +15787,7 @@ qemuDomainNamespaceSetupRNG(virDomainObjPtr vm, break; case VIR_DOMAIN_RNG_BACKEND_EGD: + case VIR_DOMAIN_RNG_BACKEND_BUILTIN: case VIR_DOMAIN_RNG_BACKEND_LAST: break; } @@ -15809,6 +15811,7 @@ qemuDomainNamespaceTeardownRNG(virDomainObjPtr vm, break; case VIR_DOMAIN_RNG_BACKEND_EGD: + case VIR_DOMAIN_RNG_BACKEND_BUILTIN: case VIR_DOMAIN_RNG_BACKEND_LAST: break; } -- 2.23.0 -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
