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qemu: build command line for the TPM Proxy device

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This patch wraps it up all the wiring done in previous patches,
enabling a PPC64 guest to launch a guest using a TPM Proxy
device.

Note that device validation is already being done in qemu_validate.c,
qemuValidateDomainDeviceDefTPM(), on domain define time. We don't
need to verify QEMU capabilities for this device again inside
qemu_command.c.

Tested-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Daniel Henrique Barboza 2020-06-10 15:11:50 -03:00 committed by Ján Tomko
parent badbd55a3b
commit 9577d86f62
1 changed files with 26 additions and 1 deletions
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27
src/qemu/qemu_command.c
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@ -9103,6 +9103,26 @@ qemuBuildTPMCommandLine(virCommandPtr cmd,
}
static int
qemuBuildTPMProxyCommandLine(virCommandPtr cmd,
virDomainTPMDefPtr tpm)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
const char *filePath = NULL;
filePath = tpm->data.passthrough.source.data.file.path;
virCommandAddArg(cmd, "-device");
virBufferAsprintf(&buf, "%s,id=%s,host-path=",
virDomainTPMModelTypeToString(tpm->model),
tpm->info.alias);
virQEMUBuildBufferEscapeComma(&buf, filePath);
virCommandAddArgBuffer(cmd, &buf);
return 0;
}
static int
qemuBuildTPMsCommandLine(virCommandPtr cmd,
const virDomainDef *def,
@ -9111,8 +9131,13 @@ qemuBuildTPMsCommandLine(virCommandPtr cmd,
size_t i;
for (i = 0; i < def->ntpms; i++) {
if (qemuBuildTPMCommandLine(cmd, def, def->tpms[i], qemuCaps) < 0)
if (def->tpms[i]->model == VIR_DOMAIN_TPM_MODEL_SPAPR_PROXY) {
if (qemuBuildTPMProxyCommandLine(cmd, def->tpms[i]) < 0)
return -1;
} else if (qemuBuildTPMCommandLine(cmd, def,
def->tpms[i], qemuCaps) < 0) {
return -1;
}
}
return 0;