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authorLaszlo Ersek <lersek@redhat.com>2020-12-16 22:10:43 +0100
committermergify[bot] <37929162+mergify[bot]@users.noreply.github.com>2020-12-21 17:16:23 +0000
commit6a2dc768f058ce96479e7ed524d27fcf59657f5b (patch)
treead8f187a2abaaa87c540fc701c369dbadc9591b0 /OvmfPkg/VirtioFsDxe/VirtioFsDxe.h
parent6578cacb4654b0673194c4771f3ed793e7c09f31 (diff)
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OvmfPkg/VirtioFsDxe: introduce the basic FUSE request/response headers
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>
Diffstat (limited to 'OvmfPkg/VirtioFsDxe/VirtioFsDxe.h')
-rw-r--r--OvmfPkg/VirtioFsDxe/VirtioFsDxe.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/OvmfPkg/VirtioFsDxe/VirtioFsDxe.h b/OvmfPkg/VirtioFsDxe/VirtioFsDxe.h
index 12acbd6dc3..f7eae9a4b7 100644
--- a/OvmfPkg/VirtioFsDxe/VirtioFsDxe.h
+++ b/OvmfPkg/VirtioFsDxe/VirtioFsDxe.h
@@ -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.