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OvmfPkg/VirtioFsDxe: implement EFI_FILE_PROTOCOL.GetPosition, .SetPosition

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Using the functions introduced previously, we can now implement
VirtioFsSimpleFileGetPosition() and VirtioFsSimpleFileSetPosition().

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: <20201216211125.19496-32-lersek@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
This commit is contained in:
Laszlo Ersek
2020-12-16 22:11:08 +01:00
committed by mergify[bot]
parent b6b240f94f
commit c4edb49b4f
5 changed files with 50 additions and 2 deletions
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9
OvmfPkg/VirtioFsDxe/SimpleFsGetPosition.c
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@ -16,5 +16,12 @@ VirtioFsSimpleFileGetPosition (
OUT UINT64 *Position
)
{
return EFI_DEVICE_ERROR;
VIRTIO_FS_FILE *VirtioFsFile;
VirtioFsFile = VIRTIO_FS_FILE_FROM_SIMPLE_FILE (This);
if (VirtioFsFile->IsDirectory) {
return EFI_UNSUPPORTED;
}
*Position = VirtioFsFile->FilePosition;
return EFI_SUCCESS;
}