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OvmfPkg/VirtioFsDxe: implement the wrapper function for FUSE_OPENDIR

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Add the VirtioFsFuseOpenDir() function, for sending the FUSE_OPENDIR
command to the Virtio Filesystem device.

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: <20201216211125.19496-10-lersek@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
This commit is contained in:
Laszlo Ersek
2020-12-16 22:10:46 +01:00
committed by mergify[bot]
parent fa97e37282
commit b62a0c5603
4 changed files with 143 additions and 0 deletions
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15
OvmfPkg/Include/IndustryStandard/VirtioFs.h
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@@ -81,6 +81,7 @@ typedef struct {
//
typedef enum {
VirtioFsFuseOpInit = 26,
VirtioFsFuseOpOpenDir = 27,
} VIRTIO_FS_FUSE_OPCODE;
#pragma pack (1)
@@ -127,6 +128,20 @@ typedef struct {
UINT16 MapAlignment;
UINT32 Unused[8];
} VIRTIO_FS_FUSE_INIT_RESPONSE;
//
// Headers for VirtioFsFuseOpOpenDir.
//
typedef struct {
UINT32 Flags;
UINT32 Unused;
} VIRTIO_FS_FUSE_OPEN_REQUEST;
typedef struct {
UINT64 FileHandle;
UINT32 OpenFlags;
UINT32 Padding;
} VIRTIO_FS_FUSE_OPEN_RESPONSE;
#pragma pack ()
#endif // VIRTIO_FS_H_