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| author | Laszlo Ersek <lersek@redhat.com> | 2020-12-16 22:10:40 +0100 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2020-12-21 17:16:23 +0000 |
| commit | b55d6622d4f4d795d71e930da1fcda7c78a7fe96 (patch) | |
| tree | 51c7fd519a83ae90aa4ec61cbd6d56ecce0e2eec /OvmfPkg/Include | |
| parent | fbc3e1267a430a20e8909ae8a6dfe1b98de9b7bc (diff) | |
| download | edk2-b55d6622d4f4d795d71e930da1fcda7c78a7fe96.tar.gz edk2-b55d6622d4f4d795d71e930da1fcda7c78a7fe96.tar.bz2 edk2-b55d6622d4f4d795d71e930da1fcda7c78a7fe96.zip | |
OvmfPkg/VirtioFsDxe: DriverBinding: open VirtioDevice, install SimpleFs
Complete the Supported, Start, and Stop member functions of
EFI_DRIVER_BINDING_PROTOCOL sufficiently for exercising the UEFI driver
model:
- bind virtio-fs devices,
- produce placeholder EFI_SIMPLE_FILE_SYSTEM_PROTOCOL instances on them.
On the "TO_START" (= Virtio) side, the VirtioFsBindingSupported() function
verifies the Virtio subsystem ID for the virtio-fs device (decimal 26 --
see
<https://github.com/oasis-tcs/virtio-spec/blob/87fa6b5d8155/virtio-fs.tex>).
Beyond that, no actual Virtio setup is performed for now. Those bits are
going to be implemented later in this series.
On the "BY_START" (= UEFI filesystem) side, the VirtioFsOpenVolume()
function -- which is the sole EFI_SIMPLE_FILE_SYSTEM_PROTOCOL member
function -- is a stub; it always returns EFI_NO_MEDIA, for now.
The "CONNECT", "DISCONNECT", and "MAP -R" UEFI Shell commands can be used
to test this patch.
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: <20201216211125.19496-4-lersek@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
Diffstat (limited to 'OvmfPkg/Include')
| -rw-r--r-- | OvmfPkg/Include/IndustryStandard/Virtio10.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/OvmfPkg/Include/IndustryStandard/Virtio10.h b/OvmfPkg/Include/IndustryStandard/Virtio10.h index 3c1592d1fd..2c60be2b7c 100644 --- a/OvmfPkg/Include/IndustryStandard/Virtio10.h +++ b/OvmfPkg/Include/IndustryStandard/Virtio10.h @@ -17,6 +17,11 @@ // Subsystem Device IDs (to be) introduced in VirtIo 1.0
//
#define VIRTIO_SUBSYSTEM_GPU_DEVICE 16
+//
+// Subsystem Device IDs from the VirtIo spec at git commit 87fa6b5d8155;
+// <https://github.com/oasis-tcs/virtio-spec/tree/87fa6b5d8155>.
+//
+#define VIRTIO_SUBSYSTEM_FILESYSTEM 26
//
// Structures for parsing the VirtIo 1.0 specific PCI capabilities from the
|