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qemu_driver: report guest disk informations

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Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Han Han <hhan@redhat.com>
This commit is contained in:
Marc-André Lureau 2020-11-20 22:09:47 +04:00 committed by Michal Privoznik
parent 05a75ca2ce
commit 0cb2d9f05d
1 changed files with 98 additions and 3 deletions
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101
src/qemu/qemu_driver.c
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@ -19846,7 +19846,8 @@ static const unsigned int qemuDomainGetGuestInfoSupportedTypes =
VIR_DOMAIN_GUEST_INFO_OS |
VIR_DOMAIN_GUEST_INFO_TIMEZONE |
VIR_DOMAIN_GUEST_INFO_HOSTNAME |
VIR_DOMAIN_GUEST_INFO_FILESYSTEM;
VIR_DOMAIN_GUEST_INFO_FILESYSTEM |
VIR_DOMAIN_GUEST_INFO_DISKS;
static int
qemuDomainGetGuestInfoCheckSupport(unsigned int types,
@ -19869,6 +19870,82 @@ qemuDomainGetGuestInfoCheckSupport(unsigned int types,
return 0;
}
static void
qemuAgentDiskInfoFormatParams(qemuAgentDiskInfoPtr *info,
int ndisks,
virDomainDefPtr vmdef,
virTypedParameterPtr *params,
int *nparams, int *maxparams)
{
size_t i, j, ndeps;
if (virTypedParamsAddUInt(params, nparams, maxparams,
"disks.count", ndisks) < 0)
return;
for (i = 0; i < ndisks; i++) {
char param_name[VIR_TYPED_PARAM_FIELD_LENGTH];
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disks.%zu.name", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, info[i]->name) < 0)
return;
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disks.%zu.partition", i);
if (virTypedParamsAddBoolean(params, nparams, maxparams,
param_name, info[i]->partition) < 0)
return;
if (info[i]->dependencies) {
ndeps = g_strv_length(info[i]->dependencies);
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disks.%zu.dependencies.count", i);
if (ndeps &&
virTypedParamsAddUInt(params, nparams, maxparams,
param_name, ndeps) < 0)
return;
for (j = 0; j < ndeps; j++) {
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disks.%zu.dependencies.%zu.name", i, j);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, info[i]->dependencies[j]) < 0)
return;
}
}
if (info[i]->address) {
virDomainDiskDefPtr diskdef = NULL;
/* match the disk to the target in the vm definition */
diskdef = virDomainDiskByAddress(vmdef,
&info[i]->address->pci_controller,
info[i]->address->bus,
info[i]->address->target,
info[i]->address->unit);
if (diskdef) {
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disks.%zu.alias", i);
if (diskdef->dst &&
virTypedParamsAddString(params, nparams, maxparams,
param_name, diskdef->dst) < 0)
return;
}
}
if (info[i]->alias) {
g_snprintf(param_name, VIR_TYPED_PARAM_FIELD_LENGTH,
"disks.%zu.guest_alias", i);
if (virTypedParamsAddString(params, nparams, maxparams,
param_name, info[i]->alias) < 0)
return;
}
}
}
static void
qemuAgentFSInfoFormatParams(qemuAgentFSInfoPtr *fsinfo,
int nfs,
@ -19977,6 +20054,8 @@ qemuDomainGetGuestInfo(virDomainPtr dom,
int rc;
size_t nfs = 0;
qemuAgentFSInfoPtr *agentfsinfo = NULL;
size_t ndisks = 0;
qemuAgentDiskInfoPtr *agentdiskinfo = NULL;
size_t i;
virCheckFlags(0, -1);
@ -20033,6 +20112,15 @@ qemuDomainGetGuestInfo(virDomainPtr dom,
}
}
if (supportedTypes & VIR_DOMAIN_GUEST_INFO_DISKS) {
rc = qemuAgentGetDisks(agent, &agentdiskinfo, report_unsupported);
if (rc == -1) {
goto exitagent;
} else if (rc >= 0) {
ndisks = rc;
}
}
ret = 0;
exitagent:
@ -20041,7 +20129,7 @@ qemuDomainGetGuestInfo(virDomainPtr dom,
endagentjob:
qemuDomainObjEndAgentJob(vm);
if (nfs > 0) {
if (nfs > 0 || ndisks > 0) {
if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_QUERY) < 0)
goto cleanup;
@ -20050,7 +20138,11 @@ qemuDomainGetGuestInfo(virDomainPtr dom,
/* we need to convert the agent fsinfo struct to parameters and match
* it to the vm disk target */
qemuAgentFSInfoFormatParams(agentfsinfo, nfs, vm->def, params, nparams, &maxparams);
if (nfs > 0)
qemuAgentFSInfoFormatParams(agentfsinfo, nfs, vm->def, params, nparams, &maxparams);
if (ndisks > 0)
qemuAgentDiskInfoFormatParams(agentdiskinfo, ndisks, vm->def, params, nparams, &maxparams);
endjob:
qemuDomainObjEndJob(driver, vm);
@ -20060,6 +20152,9 @@ qemuDomainGetGuestInfo(virDomainPtr dom,
for (i = 0; i < nfs; i++)
qemuAgentFSInfoFree(agentfsinfo[i]);
g_free(agentfsinfo);
for (i = 0; i < ndisks; i++)
qemuAgentDiskInfoFree(agentdiskinfo[i]);
g_free(agentdiskinfo);
virDomainObjEndAPI(&vm);
return ret;