[PATCH v2 14/17] qemu: driver: Don't allow certain operations with FD-passed disks

Probing stats and block copy to a FD passed image is not yet supported. Signed-off-by: Peter Krempa <pkrempa(a)redhat.com&gt; Reviewed-by: Pavel Hrdina <phrdina(a)redhat.com&gt; --- src/qemu/qemu_driver.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index e86ebd8330..218704c0ad 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -10499,6 +10499,13 @@ qemuDomainBlockPeek(virDomainPtr dom, goto cleanup; } + if (virStorageSourceIsFD(disk->src)) { + virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("peeking is not supported for FD passed images")); + goto cleanup; + + } + if (qemuDomainStorageFileInit(driver, vm, disk->src, NULL) < 0) goto cleanup; @@ -10858,6 +10865,12 @@ qemuDomainGetBlockInfo(virDomainPtr dom, goto endjob; } + if (virStorageSourceIsFD(disk->src)) { + virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("block info is not supported for FD passed disk image")); + goto endjob; + } + /* for inactive domains we have to peek into the files */ if (!virDomainObjIsActive(vm)) { if ((qemuStorageLimitsRefresh(driver, cfg, vm, disk->src, false)) < 0) @@ -14690,6 +14703,12 @@ qemuDomainBlockCopyCommon(virDomainObj *vm, if (!qemuDomainDiskBlockJobIsSupported(disk)) goto endjob; + if (virStorageSourceIsFD(mirror)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("copy to a FD passed disk source is not yet supported")); + goto endjob; + } + if (disk->device == VIR_DOMAIN_DISK_DEVICE_LUN && virDomainDiskDefSourceLUNValidate(mirror) < 0) goto endjob; @@ -17943,6 +17962,9 @@ qemuDomainGetStatsOneBlockFallback(virQEMUDriver *driver, if (virStorageSourceIsEmpty(src)) return 0; + if (virStorageSourceIsFD(src)) + return 0; + if (qemuStorageLimitsRefresh(driver, cfg, dom, src, true) <= 0) { virResetLastError(); return 0; -- 2.38.1