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qemu: Move virtual FAT disk validation from command line builder

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Move it to the validation callback and make it more robust. This will
also put the checks in the correct place to use with -blockdev.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This commit is contained in:
Peter Krempa 2018-04-18 13:22:29 +02:00
parent 043b9069c5
commit c9b27af32d
2 changed files with 25 additions and 14 deletions
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14
src/qemu/qemu_command.c
View File

@ -1520,20 +1520,6 @@ qemuBuildDriveSourceStr(virDomainDiskDefPtr disk,
/* for now the DIR based storage is handled by the magic FAT format */
if (actualType == VIR_STORAGE_TYPE_DIR) {
if (disk->src->format > 0 &&
disk->src->format != VIR_STORAGE_FILE_FAT) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("unsupported disk driver type for '%s'"),
virStorageFileFormatTypeToString(disk->src->format));
goto cleanup;
}
if (!disk->src->readonly) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cannot create virtual FAT disks in read-write mode"));
goto cleanup;
}
virBufferAddLit(buf, "fat:");
if (disk->device == VIR_DOMAIN_DISK_DEVICE_FLOPPY)

25
src/qemu/qemu_domain.c
View File

@ -4128,6 +4128,8 @@ static int
qemuDomainValidateStorageSource(virStorageSourcePtr src,
virQEMUCapsPtr qemuCaps)
{
int actualType = virStorageSourceGetActualType(src);
if (src->format == VIR_STORAGE_FILE_COW) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("'cow' storage format is not supported"));
@ -4157,6 +4159,29 @@ qemuDomainValidateStorageSource(virStorageSourcePtr src,
return -1;
}
if (src->format == VIR_STORAGE_FILE_FAT &&
actualType != VIR_STORAGE_TYPE_DIR) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("storage format 'fat' is supported only with 'dir' "
"storage type"));
return -1;
}
if (actualType == VIR_STORAGE_TYPE_DIR) {
if (src->format > 0 &&
src->format != VIR_STORAGE_FILE_FAT) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("storage type 'dir' requires use of storage format 'fat'"));
return -1;
}
if (!src->readonly) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("virtual FAT storage can't be accessed in read-write mode"));
return -1;
}
}
return 0;
}