Re: [PATCH v2 3/4] schema: add TPM emulator <source dir='..'>

On Tue, Sep 10, 2024 at 11:05:59AM +0400, marcandre.lureau(a)redhat.com wrote: >From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; > >Learn to parse a directory for the TPM state. > >Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; >--- > docs/formatdomain.rst | 3 +++ > src/conf/domain_conf.c | 13 ++++++++++--- > src/conf/domain_conf.h | 1 + > src/conf/schemas/domaincommon.rng | 15 ++++++++++++--- > tests/qemuxmlconfdata/tpm-emulator-tpm2-enc.xml | 1 + > 5 files changed, 27 insertions(+), 6 deletions(-) > >diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst >index 4818113bc2..24dcc6daaa 100644 >--- a/docs/formatdomain.rst >+++ b/docs/formatdomain.rst >@@ -8183,6 +8183,9 @@ Example: usage of the TPM Emulator > > This attribute requires that swtpm v0.7 or later is installed. > >+ ``dir`` >+ The path to the TPM state storage directory. >+ > :since:`Since v10.8.0` > > ``persistent_state`` >diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c >index 18c58d16dc..d1e9e4a50c 100644 >--- a/src/conf/domain_conf.c >+++ b/src/conf/domain_conf.c >@@ -10865,13 +10865,16 @@ virDomainTPMDefParseXML(virDomainXMLOption *xmlopt, > > source_node = virXPathNode("./backend/source", ctxt); > if (source_node) { >- path = virXMLPropString(source_node, "file"); >+ if ((path = virXMLPropString(source_node, "file"))) { >+ def->data.emulator.storage_type = VIR_DOMAIN_TPM_STORAGE_FILE; >+ } else if ((path = virXMLPropString(source_node, "dir"))) { >+ def->data.emulator.storage_type = VIR_DOMAIN_TPM_STORAGE_DIR; >+ } It would be nicer to figure out which one to use based on a value of an attribute rather than what attribute we stumble upon first. Daniel mentioned <backend type="..."> but that is already used for the type of the backend, however we could have <source type="(dir|file)"> and maybe leave the path in as is in the docs (instead of having different attribute names).