[PATCH v4 2/3] qemu: Set SPAPR TPM default to 2.0 and prevent 1.2 choice

From: Stefan Berger <stefanb(a)linux.ibm.com&gt; The firmware (SLOF) on QEMU for ppc64 does not support TPM 1.2, so prevent the choice of TPM 1.2 when the SPAPR device model is chosen and use a default of '2.0' (TPM 2) for the backend. This patch addresses BZ 1781913: https://bugzilla.redhat.com/show_bug.cgi?id=1781913 Signed-off-by: Stefan Berger <stefanb(a)linux.ibm.com&gt; Reviewed-by: Peter Krempa <pkrempa(a)redhat.com&gt; --- src/qemu/qemu_domain.c | 8 ++++++-- src/qemu/qemu_validate.c | 6 ++++++ 2 files changed, 12 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index f916d840e2..b0f5e17613 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -4351,8 +4351,12 @@ qemuDomainDefTPMsPostParse(virDomainDefPtr def) virDomainTPMDefPtr tpm = def->tpms[i]; /* TPM 1.2 and 2 are not compatible, so we choose a specific version here */ - if (tpm->version == VIR_DOMAIN_TPM_VERSION_DEFAULT) - tpm->version = VIR_DOMAIN_TPM_VERSION_1_2; + if (tpm->version == VIR_DOMAIN_TPM_VERSION_DEFAULT) { + if (tpm->model == VIR_DOMAIN_TPM_MODEL_SPAPR) + tpm->version = VIR_DOMAIN_TPM_VERSION_2_0; + else + tpm->version = VIR_DOMAIN_TPM_VERSION_1_2; + } if (tpm->model == VIR_DOMAIN_TPM_MODEL_SPAPR_PROXY) { if (proxyTPM) { diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c index d130b52bf2..488f258d00 100644 --- a/src/qemu/qemu_validate.c +++ b/src/qemu/qemu_validate.c @@ -3654,6 +3654,12 @@ qemuValidateDomainDeviceDefTPM(virDomainTPMDef *tpm, virDomainTPMModelTypeToString(tpm->model)); return -1; } + /* TPM 1.2 + SPAPR do not work with any 'type' (backend) */ + if (tpm->model == VIR_DOMAIN_TPM_MODEL_SPAPR) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("TPM 1.2 is not supported with the SPAPR device model")); + return -1; + } break; case VIR_DOMAIN_TPM_VERSION_2_0: case VIR_DOMAIN_TPM_VERSION_DEFAULT: -- 2.17.1