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conf: shmem: Add ABI stability check 

Although the device will probably inhibit migration add checks to make
sure that the configuration change gets caught.
This commit is contained in:
Peter Krempa 2014-10-07 14:26:32 +02:00
parent ac5979edc4
commit e7d67e7bad
1 changed files with 50 additions and 0 deletions
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50
src/conf/domain_conf.c
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@ -14998,6 +14998,44 @@ virDomainPanicCheckABIStability(virDomainPanicDefPtr src,
}
static bool
virDomainShmemDefCheckABIStability(virDomainShmemDefPtr src,
virDomainShmemDefPtr dst)
{
if (STRNEQ_NULLABLE(src->name, dst->name)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Target shared memory name '%s' does not match source "
"'%s'"), dst->name, src->name);
return false;
}
if (src->size != dst->size) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Target shared memory size '%llu' does not match "
"source size '%llu'"), dst->size, src->size);
return false;
}
if (src->server.enabled != dst->server.enabled) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Target shared memory server usage doesn't match "
"source"));
return false;
}
if (src->msi.vectors != dst->msi.vectors ||
src->msi.enabled != dst->msi.enabled ||
src->msi.ioeventfd != dst->msi.ioeventfd) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Target shared memory MSI configuration doesn't match "
"source"));
return false;
}
return virDomainDeviceInfoCheckABIStability(&src->info, &dst->info);
}
/* This compares two configurations and looks for any differences
* which will affect the guest ABI. This is primarily to allow
* validation of custom XML config passed in during migration
@ -15399,6 +15437,18 @@ virDomainDefCheckABIStability(virDomainDefPtr src,
if (!virDomainPanicCheckABIStability(src->panic, dst->panic))
goto error;
if (src->nshmems != dst->nshmems) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Target domain shared memory device count %zu "
"does not match source %zu"), dst->nshmems, src->nshmems);
goto error;
}
for (i = 0; i < src->nshmems; i++) {
if (!virDomainShmemDefCheckABIStability(src->shmems[i], dst->shmems[i]))
goto error;
}
return true;
error: