sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

OvmfPkg/VirtioFsDxe: introduce the basic FUSE request/response headers

Browse Source 
Introduce the VIRTIO_FS_FUSE_REQUEST and VIRTIO_FS_FUSE_RESPONSE
structures, which are the common headers for the various FUSE
request/response structures.

Introduce the VirtioFsFuseNewRequest() helper function for populating
VIRTIO_FS_FUSE_REQUEST, from parameters and from a VIRTIO_FS-level request
counter.

Introduce the VirtioFsFuseCheckResponse() helper function for verifying
most FUSE response types that begin with the VIRTIO_FS_FUSE_RESPONSE
header.

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: <20201216211125.19496-7-lersek@redhat.com>
Acked-by: Ard Biesheuvel <ard.biesheuvel@arm.com>
This commit is contained in:
Laszlo Ersek
2020-12-16 22:10:43 +01:00
committed by mergify[bot]
parent 6578cacb46
commit 6a2dc768f0
4 changed files with 287 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
OvmfPkg/VirtioFsDxe/VirtioFsDxe.h
View File

@@ -44,6 +44,7 @@ typedef struct {
UINT16 QueueSize; // VirtioFsInit 1
VRING Ring; // VirtioRingInit 2
VOID *RingMap; // VirtioRingMap 2
UINT64 RequestId; // DriverBindingStart 0
EFI_EVENT ExitBoot; // DriverBindingStart 0
EFI_SIMPLE_FILE_SYSTEM_PROTOCOL SimpleFs; // DriverBindingStart 0
} VIRTIO_FS;
@@ -132,6 +133,22 @@ VirtioFsSgListsSubmit (
IN OUT VIRTIO_FS_SCATTER_GATHER_LIST *ResponseSgList OPTIONAL
);
EFI_STATUS
VirtioFsFuseNewRequest (
IN OUT VIRTIO_FS *VirtioFs,
OUT VIRTIO_FS_FUSE_REQUEST *Request,
IN UINT32 RequestSize,
IN UINT32 Opcode,
IN UINT64 NodeId
);
EFI_STATUS
VirtioFsFuseCheckResponse (
IN VIRTIO_FS_SCATTER_GATHER_LIST *ResponseSgList,
IN UINT64 RequestId,
OUT UINTN *TailBufferFill
);
//
// EFI_SIMPLE_FILE_SYSTEM_PROTOCOL member functions for the Virtio Filesystem
// driver.