mirror of https://github.com/acidanthera/audk.git
334c13e106
With the help of the VirtioFsFuseOpenDir() and VirtioFsFuseReleaseFileOrDir() functions introduced previously, we can now open and close the root directory. So let's implement EFI_SIMPLE_FILE_SYSTEM_PROTOCOL.OpenVolume(). OpenVolume() creates a new EFI_FILE_PROTOCOL object -- a reference to the root directory of the filesystem. Thus, we have to start tracking references to EFI_SIMPLE_FILE_SYSTEM_PROTOCOL, lest we unbind the virtio-fs device while files are open. There are two methods that release an EFI_FILE_PROTOCOL object: the Close() and the Delete() member functions. In particular, they are not allowed to fail with regard to resource management -- they must release resources unconditionally. Thus, for rolling back the resource accounting that we do in EFI_SIMPLE_FILE_SYSTEM_PROTOCOL.OpenVolume(), we have to implement the first versions of EFI_FILE_PROTOCOL.Close() and EFI_FILE_PROTOCOL.Delete() in this patch as well. With this patch applied, the UEFI shell can enter the root directory of the Virtio Filesystem (such as with the "FS3:" shell command), and the "DIR" shell command exercises FUSE_OPENDIR and FUSE_RELEASEDIR, according to the virtiofsd log. The "DIR" command reports the root directory as if it were empty; probably because at this time, we only allow the shell to open and to close the root directory, but not to read it. Cc: Ard Biesheuvel <ard.biesheuvel@arm.com> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Philippe Mathieu-Daudé <philmd@redhat.com> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3097 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Message-Id: <20201216211125.19496-12-lersek@redhat.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com> |
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| .. | ||
| Xen | ||
| Bhyve.h | ||
| E820.h | ||
| FusionMptScsi.h | ||
| I440FxPiix4.h | ||
| InstructionParsing.h | ||
| LegacyVgaBios.h | ||
| LinuxBzimage.h | ||
| LsiScsi.h | ||
| PvScsi.h | ||
| Q35MchIch9.h | ||
| QemuCpuHotplug.h | ||
| QemuFwCfg.h | ||
| QemuPciBridgeCapabilities.h | ||
| QemuTpm.h | ||
| Virtio.h | ||
| Virtio10.h | ||
| Virtio10Net.h | ||
| Virtio095.h | ||
| Virtio095Net.h | ||
| VirtioBlk.h | ||
| VirtioFs.h | ||
| VirtioGpu.h | ||
| VirtioNet.h | ||
| VirtioScsi.h | ||